/mandos/trunk : revision 592

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/* -*- mode: c; coding: utf-8; after-save-hook: (lambda () (let* ((find-build-directory (lambda (try-directory &optional base-directory) (let ((base-directory (or base-directory try-directory))) (cond ((equal try-directory "/") base-directory) ((file-readable-p (concat (file-name-as-directory try-directory) "Makefile")) try-directory) ((funcall find-build-directory (directory-file-name (file-name-directory try-directory)) base-directory)))))) (build-directory (funcall find-build-directory (buffer-file-name))) (local-build-directory (if (fboundp 'file-local-name) (file-local-name build-directory) (or (file-remote-p build-directory 'localname) build-directory))) (command (file-relative-name (file-name-sans-extension (buffer-file-name)) build-directory))) (pcase (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (let ((qbdir (shell-quote-argument local-build-directory)) (qcmd (shell-quote-argument command))) (format "cd %s && CFLAGS=-Werror make --silent %s && %s --test --verbose" qbdir qcmd qcmd)) nil "*Test*")) (0 (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w)))) (_ (with-current-buffer "*Test*" (compilation-mode) (cd-absolute build-directory)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); -*- */

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/*

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* Mandos password agent - Simple password agent to run Mandos client

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*

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*

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* This file is part of Mandos.

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*

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* Mandos is free software: you can redistribute it and/or modify it

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* under the terms of the GNU General Public License as published by

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* the Free Software Foundation, either version 3 of the License, or

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* (at your option) any later version.

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*

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* Mandos is distributed in the hope that it will be useful, but

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* WITHOUT ANY WARRANTY; without even the implied warranty of

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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

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* General Public License for more details.

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*

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* You should have received a copy of the GNU General Public License

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* along with Mandos. If not, see <http://www.gnu.org/licenses/>.

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*

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* Contact the authors at <mandos@recompile.se>.

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*/

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#define _GNU_SOURCE

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#include <inttypes.h> /* uintmax_t, PRIuMAX, PRIdMAX,

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intmax_t, uint32_t, SCNx32,

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SCNuMAX, SCNxMAX */

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#include <stddef.h> /* size_t */

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#include <sys/types.h> /* pid_t, uid_t, gid_t, getuid(),

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getpid() */

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#include <stdbool.h> /* bool, true, false */

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#include <signal.h> /* struct sigaction, sigset_t,

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sigemptyset(), sigaddset(),

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SIGCHLD, pthread_sigmask(),

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SIG_BLOCK, SIG_SETMASK, SA_RESTART,

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SA_NOCLDSTOP, sigfillset(), kill(),

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SIGTERM, sigdelset(), SIGKILL,

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NSIG, sigismember(), SA_ONSTACK,

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SIG_DFL, SIG_IGN, SIGINT, SIGQUIT,

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SIGHUP, SIGSTOP, SIG_UNBLOCK */

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#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE,

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malloc(), free(), strtoumax(),

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realloc(), setenv(), calloc(),

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mkdtemp(), mkostemp() */

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#include <iso646.h> /* not, or, and, xor */

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#include <error.h> /* error() */

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#include <sysexits.h> /* EX_USAGE, EX_OSERR, EX_OSFILE */

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#include <errno.h> /* errno, error_t, EACCES,

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ENAMETOOLONG, ENOENT, ENOTDIR,

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ENOMEM, EEXIST, ECHILD, EPERM,

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EAGAIN, EINTR, ENOBUFS, EADDRINUSE,

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ECONNREFUSED, ECONNRESET,

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ETOOMANYREFS, EMSGSIZE, EBADF,

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EINVAL */

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#include <string.h> /* strdup(), memcpy(),

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explicit_bzero(), memset(),

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strcmp(), strlen(), strncpy(),

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memcmp(), basename() */

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#include <argz.h> /* argz_create(), argz_count(),

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argz_extract(), argz_next(),

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argz_add() */

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#include <sys/epoll.h> /* epoll_create1(), EPOLL_CLOEXEC,

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epoll_ctl(), EPOLL_CTL_ADD,

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struct epoll_event, EPOLLIN,

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EPOLLRDHUP, EPOLLOUT,

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epoll_pwait() */

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#include <time.h> /* struct timespec, clock_gettime(),

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CLOCK_MONOTONIC */

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#include <argp.h> /* struct argp_option, OPTION_HIDDEN,

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OPTION_ALIAS, struct argp_state,

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ARGP_ERR_UNKNOWN, ARGP_KEY_ARGS,

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struct argp, argp_parse(),

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ARGP_NO_EXIT */

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#include <stdint.h> /* SIZE_MAX */

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#include <unistd.h> /* uid_t, gid_t, close(), pipe2(),

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fork(), _exit(), dup2(),

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STDOUT_FILENO, setresgid(),

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setresuid(), execv(), ssize_t,

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read(), dup3(), getuid(), dup(),

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STDERR_FILENO, pause(), write(),

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rmdir(), unlink(), getpid() */

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#include <sys/mman.h> /* munlock(), mlock() */

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#include <fcntl.h> /* O_CLOEXEC, O_NONBLOCK, fcntl(),

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F_GETFD, F_GETFL, FD_CLOEXEC,

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open(), O_WRONLY, O_NOCTTY,

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O_RDONLY, O_NOFOLLOW */

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#include <sys/wait.h> /* waitpid(), WNOHANG, WIFEXITED(),

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WEXITSTATUS() */

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#include <limits.h> /* PIPE_BUF, NAME_MAX, INT_MAX */

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#include <sys/inotify.h> /* inotify_init1(), IN_NONBLOCK,

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IN_CLOEXEC, inotify_add_watch(),

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IN_CLOSE_WRITE, IN_MOVED_TO,

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IN_MOVED_FROM, IN_DELETE,

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IN_EXCL_UNLINK, IN_ONLYDIR,

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struct inotify_event */

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#include <fnmatch.h> /* fnmatch(), FNM_FILE_NAME */

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#include <stdio.h> /* asprintf(), FILE, stderr, fopen(),

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fclose(), getline(), sscanf(),

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feof(), ferror(), rename(),

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fdopen(), fprintf(), fscanf() */

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#include <glib.h> /* GKeyFile, g_key_file_free(), g_key_file_new(),

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GError, g_key_file_load_from_file(),

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G_KEY_FILE_NONE, TRUE, G_FILE_ERROR_NOENT,

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g_key_file_get_string(), guint64,

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g_key_file_get_uint64(),

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G_KEY_FILE_ERROR_KEY_NOT_FOUND, gconstpointer,

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g_assert_true(), g_assert_nonnull(),

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g_assert_null(), g_assert_false(),

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g_assert_cmpint(), g_assert_cmpuint(),

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g_test_skip(), g_assert_cmpstr(),

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g_test_init(), g_test_add(), g_test_run(),

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GOptionContext, g_option_context_new(),

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g_option_context_set_help_enabled(), FALSE,

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g_option_context_set_ignore_unknown_options(),

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gboolean, GOptionEntry, G_OPTION_ARG_NONE,

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g_option_context_add_main_entries(),

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g_option_context_parse(),

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g_option_context_free(), g_error() */

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#include <sys/un.h> /* struct sockaddr_un, SUN_LEN */

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#include <sys/socket.h> /* AF_LOCAL, socket(), PF_LOCAL,

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SOCK_DGRAM, SOCK_NONBLOCK,

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SOCK_CLOEXEC, connect(),

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struct sockaddr, socklen_t,

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shutdown(), SHUT_RD, send(),

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MSG_NOSIGNAL, bind(), recv(),

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socketpair() */

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#include <glob.h> /* globfree(), glob_t, glob(),

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GLOB_ERR, GLOB_NOSORT, GLOB_MARK,

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GLOB_ABORTED, GLOB_NOMATCH,

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GLOB_NOSPACE */

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/* End of includes */

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/* Start of declarations of private types and functions */

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/* microseconds of CLOCK_MONOTONIC absolute time; 0 means unset */

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typedef uintmax_t mono_microsecs;

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/* "task_queue" - A queue of tasks to be run */

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typedef struct {

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struct task_struct *tasks; /* Tasks in this queue */

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size_t length; /* Number of tasks */

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/* Memory allocated for "tasks", in bytes */

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size_t allocated;

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/* Time when this queue should be run, at the latest */

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mono_microsecs next_run;

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} __attribute__((designated_init)) task_queue;

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/* "task_func" - A function type for task functions

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I.e. functions for the code which runs when a task is run, all have

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this type */

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typedef void (task_func) (const struct task_struct,

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task_queue *const)

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__attribute__((nonnull));

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/* "buffer" - A data buffer for a growing array of bytes

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Used for the "password" variable */

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typedef struct {

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char *data;

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size_t length;

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size_t allocated;

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} __attribute__((designated_init)) buffer;

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/* "string_set" - A set type which can contain strings

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Used by the "cancelled_filenames" variable */

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typedef struct {

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char *argz; /* Do not access these except in */

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size_t argz_len; /* the string_set_* functions */

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} __attribute__((designated_init)) string_set;

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/* "task_context" - local variables for tasks

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This data structure distinguishes between different tasks which are

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using the same function. This data structure is passed to every

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task function when each task is run.

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Note that not every task uses every struct member. */

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typedef struct task_struct {

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task_func *const func; /* The function run by this task */

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char *const question_filename; /* The question file */

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const pid_t pid; /* Mandos client process ID */

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const int epoll_fd; /* The epoll set file descriptor */

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bool *const quit_now; /* Set to true on fatal errors */

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const int fd; /* General purpose file descriptor */

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bool *const mandos_client_exited; /* Set true when client exits */

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buffer *const password; /* As read from client process */

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bool *const password_is_read; /* "password" is done growing */

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char *filename; /* General purpose file name */

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/* A set of strings of all the file names of questions which have

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been cancelled for any reason; tasks pertaining to these question

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files should not be run */

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string_set *const cancelled_filenames;

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const mono_microsecs notafter; /* "NotAfter" from question file */

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/* Updated before each queue run; is compared with queue.next_run */

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const mono_microsecs *const current_time;

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} __attribute__((designated_init)) task_context;

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/* Declare all our functions here so we can define them in any order

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below. Note: test functions are *not* declared here, they are

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declared in the test section. */

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__attribute__((warn_unused_result))

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static bool should_only_run_tests(int *, char **[]);

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__attribute__((warn_unused_result, cold))

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static bool run_tests(int, char *[]);

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static void handle_sigchld(__attribute__((unused)) int sig){}

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__attribute__((warn_unused_result, malloc))

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task_queue *create_queue(void);

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__attribute__((nonnull, warn_unused_result))

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bool add_to_queue(task_queue *const, const task_context);

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__attribute__((nonnull))

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void cleanup_task(const task_context *const);

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__attribute__((nonnull))

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void cleanup_queue(task_queue *const *const);

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__attribute__((pure, nonnull, warn_unused_result))

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bool queue_has_question(const task_queue *const);

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__attribute__((nonnull))

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void cleanup_close(const int *const);

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__attribute__((nonnull))

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void cleanup_string(char *const *const);

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__attribute__((nonnull))

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void cleanup_buffer(buffer *const);

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__attribute__((pure, nonnull, warn_unused_result))

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bool string_set_contains(const string_set, const char *const);

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__attribute__((nonnull, warn_unused_result))

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bool string_set_add(string_set *const, const char *const);

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__attribute__((nonnull))

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void string_set_clear(string_set *);

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void string_set_swap(string_set *const, string_set *const);

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__attribute__((nonnull, warn_unused_result))

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bool start_mandos_client(task_queue *const, const int, bool *const,

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bool *const, buffer *const, bool *const,

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const struct sigaction *const,

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const sigset_t, const char *const,

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const uid_t, const gid_t,

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const char *const *const);

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__attribute__((nonnull))

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task_func wait_for_mandos_client_exit;

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__attribute__((nonnull))

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task_func read_mandos_client_output;

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__attribute__((warn_unused_result))

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bool add_inotify_dir_watch(task_queue *const, const int, bool *const,

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buffer *const, const char *const,

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string_set *, const mono_microsecs *const,

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bool *const, bool *const);

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__attribute__((nonnull))

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task_func read_inotify_event;

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__attribute__((nonnull))

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task_func open_and_parse_question;

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__attribute__((nonnull))

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task_func cancel_old_question;

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__attribute__((nonnull))

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task_func connect_question_socket;

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__attribute__((nonnull))

259

task_func send_password_to_socket;

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__attribute__((warn_unused_result))

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bool add_existing_questions(task_queue *const, const int,

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buffer *const, string_set *,

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const mono_microsecs *const,

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bool *const, bool *const,

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const char *const);

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__attribute__((nonnull, warn_unused_result))

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bool wait_for_event(const int, const mono_microsecs,

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const mono_microsecs);

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bool run_queue(task_queue **const, string_set *const, bool *const);

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bool clear_all_fds_from_epoll_set(const int);

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mono_microsecs get_current_time(void);

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__attribute__((nonnull, warn_unused_result))

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bool setup_signal_handler(struct sigaction *const);

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__attribute__((nonnull))

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bool restore_signal_handler(const struct sigaction *const);

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__attribute__((nonnull, warn_unused_result))

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bool block_sigchld(sigset_t *const);

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__attribute__((nonnull))

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bool restore_sigmask(const sigset_t *const);

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__attribute__((nonnull))

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bool parse_arguments(int, char *[], const bool, char **, char **,

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uid_t *const , gid_t *const, char **, size_t *);

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/* End of declarations of private types and functions */

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/* Start of "main" section; this section LACKS TESTS!

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Code here should be as simple as possible. */

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/* These are required to be global by Argp */

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const char *argp_program_version = "password-agent " VERSION;

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const char *argp_program_bug_address = "<mandos@recompile.se>";

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int main(int argc, char *argv[]){

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/* If the --test option is passed, skip all normal operations and

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instead only run the run_tests() function, which also does all

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its own option parsing, so we don't have to do anything here. */

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if(should_only_run_tests(&argc, &argv)){

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if(run_tests(argc, argv)){

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return EXIT_SUCCESS; /* All tests successful */

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}

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return EXIT_FAILURE; /* Some test(s) failed */

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}

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__attribute__((cleanup(cleanup_string)))

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char *agent_directory = NULL;

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__attribute__((cleanup(cleanup_string)))

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char *helper_directory = NULL;

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uid_t user = 0;

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gid_t group = 0;

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__attribute__((cleanup(cleanup_string)))

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char *mandos_argz = NULL;

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size_t mandos_argz_length = 0;

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if(not parse_arguments(argc, argv, true, &agent_directory,

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&helper_directory, &user, &group,

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&mandos_argz, &mandos_argz_length)){

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/* This should never happen, since "true" is passed as the third

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argument to parse_arguments() above, which should make

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argp_parse() call exit() if any parsing error occurs. */

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error(EX_USAGE, errno, "Failed to parse arguments");

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}

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const char default_agent_directory[] = "/run/systemd/ask-password";

329

const char default_helper_directory[]

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= "/lib/mandos/plugin-helpers";

331

const char *const default_argv[]

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= {"/lib/mandos/plugins.d/mandos-client", NULL };

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334

/* Set variables to default values if unset */

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if(agent_directory == NULL){

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agent_directory = strdup(default_agent_directory);

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if(agent_directory == NULL){

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error(EX_OSERR, errno, "Failed strdup()");

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}

340

}

341

if(helper_directory == NULL){

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helper_directory = strdup(default_helper_directory);

343

if(helper_directory == NULL){

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error(EX_OSERR, errno, "Failed strdup()");

345

}

346

}

347

if(user == 0){

348

user = 65534; /* nobody */

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}

350

if(group == 0){

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group = 65534; /* nogroup */

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}

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/* If parse_opt did not create an argz vector, create one with

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default values */

355

if(mandos_argz == NULL){

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#ifdef __GNUC__

357

#pragma GCC diagnostic push

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/* argz_create() takes a non-const argv for some unknown reason -

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argz_create() isn't modifying the strings, just copying them.

360

Therefore, this cast to non-const should be safe. */

361

#pragma GCC diagnostic ignored "-Wcast-qual"

362

#endif

363

errno = argz_create((char *const *)default_argv, &mandos_argz,

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&mandos_argz_length);

365

#ifdef __GNUC__

366

#pragma GCC diagnostic pop

367

#endif

368

if(errno != 0){

369

error(EX_OSERR, errno, "Failed argz_create()");

370

}

371

}

372

/* Use argz vector to create a normal argv, usable by execv() */

373

374

char **mandos_argv = malloc((argz_count(mandos_argz,

375

mandos_argz_length)

376

+ 1) * sizeof(char *));

377

if(mandos_argv == NULL){

378

error_t saved_errno = errno;

379

free(mandos_argz);

380

error(EX_OSERR, saved_errno, "Failed malloc()");

381

}

382

argz_extract(mandos_argz, mandos_argz_length, mandos_argv);

383

384

sigset_t orig_sigmask;

385

if(not block_sigchld(&orig_sigmask)){

386

return EX_OSERR;

387

}

388

389

struct sigaction old_sigchld_action;

390

if(not setup_signal_handler(&old_sigchld_action)){

391

return EX_OSERR;

392

}

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394

mono_microsecs current_time = 0;

395

396

bool mandos_client_exited = false;

397

bool quit_now = false;

398

__attribute__((cleanup(cleanup_close)))

399

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

400

if(epoll_fd < 0){

401

error(EX_OSERR, errno, "Failed to create epoll set fd");

402

}

403

__attribute__((cleanup(cleanup_queue)))

404

task_queue *queue = create_queue();

405

if(queue == NULL){

406

error(EX_OSERR, errno, "Failed to create task queue");

407

}

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409

__attribute__((cleanup(cleanup_buffer)))

410

buffer password = {};

411

bool password_is_read = false;

412

413

__attribute__((cleanup(string_set_clear)))

414

string_set cancelled_filenames = {};

415

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/* Add tasks to queue */

417

if(not start_mandos_client(queue, epoll_fd, &mandos_client_exited,

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&quit_now, &password, &password_is_read,

419

&old_sigchld_action, orig_sigmask,

420

helper_directory, user, group,

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(const char *const *)mandos_argv)){

422

return EX_OSERR; /* Error has already been printed */

423

}

424

/* These variables were only for start_mandos_client() and are not

425

needed anymore */

426

free(mandos_argv);

427

free(mandos_argz);

428

mandos_argz = NULL;

429

if(not add_inotify_dir_watch(queue, epoll_fd, &quit_now, &password,

430

agent_directory, &cancelled_filenames,

431

&current_time, &mandos_client_exited,

432

&password_is_read)){

433

switch(errno){ /* Error has already been printed */

434

case EACCES:

435

case ENAMETOOLONG:

436

case ENOENT:

437

case ENOTDIR:

438

return EX_OSFILE;

439

default:

440

return EX_OSERR;

441

}

442

}

443

if(not add_existing_questions(queue, epoll_fd, &password,

444

&cancelled_filenames, &current_time,

445

&mandos_client_exited,

446

&password_is_read, agent_directory)){

447

return EXIT_FAILURE; /* Error has already been printed */

448

}

449

450

/* Run queue */

451

do {

452

current_time = get_current_time();

453

if(not wait_for_event(epoll_fd, queue->next_run, current_time)){

454

const error_t saved_errno = errno;

455

error(EXIT_FAILURE, saved_errno, "Failure while waiting for"

456

" events");

457

}

458

459

current_time = get_current_time();

460

if(not run_queue(&queue, &cancelled_filenames, &quit_now)){

461

const error_t saved_errno = errno;

462

error(EXIT_FAILURE, saved_errno, "Failure while running queue");

463

}

464

465

/* When no tasks about questions are left in the queue, break out

466

of the loop (and implicitly exit the program) */

467

} while(queue_has_question(queue));

468

469

restore_signal_handler(&old_sigchld_action);

470

restore_sigmask(&orig_sigmask);

471

472

return EXIT_SUCCESS;

473

}

474

475

__attribute__((warn_unused_result))

476

mono_microsecs get_current_time(void){

477

struct timespec currtime;

478

if(clock_gettime(CLOCK_MONOTONIC, &currtime) != 0){

479

error(0, errno, "Failed to get current time");

480

return 0;

481

}

482

return ((mono_microsecs)currtime.tv_sec * 1000000) /* seconds */

483

+ ((mono_microsecs)currtime.tv_nsec / 1000); /* nanoseconds */

484

}

485

486

/* End of "main" section */

487

488

/* Start of regular code section; ALL this code has tests */

489

490

__attribute__((nonnull))

491

bool parse_arguments(int argc, char *argv[], const bool exit_failure,

492

char **agent_directory, char **helper_directory,

493

uid_t *const user, gid_t *const group,

494

char **mandos_argz, size_t *mandos_argz_length){

495

496

const struct argp_option options[] = {

497

{ .name="agent-directory",.key='d', .arg="DIRECTORY",

498

.doc="Systemd password agent directory" },

499

{ .name="helper-directory",.key=128, .arg="DIRECTORY",

500

.doc="Mandos Client password helper directory" },

501

{ .name="plugin-helper-dir", .key=129, /* From plugin-runner */

502

.flags=OPTION_HIDDEN | OPTION_ALIAS },

503

{ .name="user", .key='u', .arg="USERID",

504

.doc="User ID the Mandos Client will use as its unprivileged"

505

" user" },

506

{ .name="userid", .key=130, /* From plugin--runner */

507

.flags=OPTION_HIDDEN | OPTION_ALIAS },

508

{ .name="group", .key='g', .arg="GROUPID",

509

.doc="Group ID the Mandos Client will use as its unprivileged"

510

" group" },

511

{ .name="groupid", .key=131, /* From plugin--runner */

512

.flags=OPTION_HIDDEN | OPTION_ALIAS },

513

{ .name="test", .key=255, /* See should_only_run_tests() */

514

.doc="Skip normal operation, and only run self-tests. See"

515

" --test --help.", .group=10, },

516

{ NULL },

517

};

518

519

__attribute__((nonnull(3)))

520

error_t parse_opt(int key, char *arg, struct argp_state *state){

521

errno = 0;

522

switch(key){

523

case 'd': /* --agent-directory */

524

*agent_directory = strdup(arg);

525

break;

526

case 128: /* --helper-directory */

527

case 129: /* --plugin-helper-dir */

528

*helper_directory = strdup(arg);

529

break;

530

case 'u': /* --user */

531

case 130: /* --userid */

532

{

533

char *tmp;

534

uintmax_t tmp_id = 0;

535

errno = 0;

536

tmp_id = (uid_t)strtoumax(arg, &tmp, 10);

537

if(errno != 0 or tmp == arg or *tmp != '\0'

538

or tmp_id != (uid_t)tmp_id or (uid_t)tmp_id == 0){

539

return ARGP_ERR_UNKNOWN;

540

}

541

*user = (uid_t)tmp_id;

542

errno = 0;

543

break;

544

}

545

case 'g': /* --group */

546

case 131: /* --groupid */

547

{

548

char *tmp;

549

uintmax_t tmp_id = 0;

550

errno = 0;

551

tmp_id = (uid_t)strtoumax(arg, &tmp, 10);

552

if(errno != 0 or tmp == arg or *tmp != '\0'

553

or tmp_id != (gid_t)tmp_id or (gid_t)tmp_id == 0){

554

return ARGP_ERR_UNKNOWN;

555

}

556

*group = (gid_t)tmp_id;

557

errno = 0;

558

break;

559

}

560

case ARGP_KEY_ARGS:

561

/* Copy arguments into argz vector */

562

return argz_create(state->argv + state->next, mandos_argz,

563

mandos_argz_length);

564

default:

565

return ARGP_ERR_UNKNOWN;

566

}

567

return errno;

568

}

569

570

const struct argp argp = {

571

.options=options,

572

.parser=parse_opt,

573

.args_doc="[MANDOS_CLIENT [OPTION...]]\n--test",

574

.doc = "Mandos password agent -- runs Mandos client as a"

575

" systemd password agent",

576

};

577

578

errno = argp_parse(&argp, argc, argv,

579

exit_failure ? 0 : ARGP_NO_EXIT, NULL, NULL);

580

581

return errno == 0;

582

}

583

584

__attribute__((nonnull, warn_unused_result))

585

bool block_sigchld(sigset_t *const orig_sigmask){

586

sigset_t sigchld_sigmask;

587

if(sigemptyset(&sigchld_sigmask) < 0){

588

error(0, errno, "Failed to empty signal set");

589

return false;

590

}

591

if(sigaddset(&sigchld_sigmask, SIGCHLD) < 0){

592

error(0, errno, "Failed to add SIGCHLD to signal set");

593

return false;

594

}

595

if(pthread_sigmask(SIG_BLOCK, &sigchld_sigmask, orig_sigmask) != 0){

596

error(0, errno, "Failed to block SIGCHLD signal");

597

return false;

598

}

599

return true;

600

}

601

602

__attribute__((nonnull, warn_unused_result, const))

603

bool restore_sigmask(const sigset_t *const orig_sigmask){

604

if(pthread_sigmask(SIG_SETMASK, orig_sigmask, NULL) != 0){

605

error(0, errno, "Failed to restore blocked signals");

606

return false;

607

}

608

return true;

609

}

610

611

__attribute__((nonnull, warn_unused_result))

612

bool setup_signal_handler(struct sigaction *const old_sigchld_action){

613

struct sigaction sigchld_action = {

614

.sa_handler=handle_sigchld,

615

.sa_flags=SA_RESTART | SA_NOCLDSTOP,

616

};

617

/* Set all signals in "sa_mask" struct member; this makes all

618

signals automatically blocked during signal handler */

619

if(sigfillset(&sigchld_action.sa_mask) != 0){

620

error(0, errno, "Failed to do sigfillset()");

621

return false;

622

}

623

if(sigaction(SIGCHLD, &sigchld_action, old_sigchld_action) != 0){

624

error(0, errno, "Failed to set SIGCHLD signal handler");

625

return false;

626

}

627

return true;

628

}

629

630

__attribute__((nonnull, warn_unused_result))

631

bool restore_signal_handler(const struct sigaction *const

632

old_sigchld_action){

633

if(sigaction(SIGCHLD, old_sigchld_action, NULL) != 0){

634

error(0, errno, "Failed to restore signal handler");

635

return false;

636

}

637

return true;

638

}

639

640

__attribute__((warn_unused_result, malloc))

641

task_queue *create_queue(void){

642

task_queue *queue = malloc(sizeof(task_queue));

643

if(queue){

644

queue->tasks = NULL;

645

queue->length = 0;

646

queue->allocated = 0;

647

queue->next_run = 0;

648

}

649

return queue;

650

}

651

652

__attribute__((nonnull, warn_unused_result))

653

bool add_to_queue(task_queue *const queue, const task_context task){

654

if((queue->length + 1) > (SIZE_MAX / sizeof(task_context))){

655

/* overflow */

656

error(0, ENOMEM, "Failed to allocate %" PRIuMAX

657

" tasks for queue->tasks", (uintmax_t)(queue->length + 1));

658

errno = ENOMEM;

659

return false;

660

}

661

const size_t needed_size = sizeof(task_context)*(queue->length + 1);

662

if(needed_size > (queue->allocated)){

663

task_context *const new_tasks = realloc(queue->tasks,

664

needed_size);

665

if(new_tasks == NULL){

666

error(0, errno, "Failed to allocate %" PRIuMAX

667

" bytes for queue->tasks", (uintmax_t)needed_size);

668

return false;

669

}

670

queue->tasks = new_tasks;

671

queue->allocated = needed_size;

672

}

673

/* Using memcpy here is necessary because doing */

674

/* queue->tasks[queue->length++] = task; */

675

/* would violate const-ness of task members */

676

memcpy(&(queue->tasks[queue->length++]), &task,

677

sizeof(task_context));

678

return true;

679

}

680

681

__attribute__((nonnull))

682

void cleanup_task(const task_context *const task){

683

const error_t saved_errno = errno;

684

/* free and close all task data */

685

free(task->question_filename);

686

if(task->filename != task->question_filename){

687

free(task->filename);

688

}

689

if(task->pid > 0){

690

kill(task->pid, SIGTERM);

691

}

692

if(task->fd > 0){

693

close(task->fd);

694

}

695

errno = saved_errno;

696

}

697

698

__attribute__((nonnull))

699

void free_queue(task_queue *const queue){

700

free(queue->tasks);

701

free(queue);

702

}

703

704

__attribute__((nonnull))

705

void cleanup_queue(task_queue *const *const queue){

706

if(*queue == NULL){

707

return;

708

}

709

for(size_t i = 0; i < (*queue)->length; i++){

710

const task_context *const task = ((*queue)->tasks)+i;

711

cleanup_task(task);

712

}

713

free_queue(*queue);

714

}

715

716

__attribute__((pure, nonnull, warn_unused_result))

717

bool queue_has_question(const task_queue *const queue){

718

for(size_t i=0; i < queue->length; i++){

719

if(queue->tasks[i].question_filename != NULL){

720

return true;

721

}

722

}

723

return false;

724

}

725

726

__attribute__((nonnull))

727

void cleanup_close(const int *const fd){

728

const error_t saved_errno = errno;

729

close(*fd);

730

errno = saved_errno;

731

}

732

733

__attribute__((nonnull))

734

void cleanup_string(char *const *const ptr){

735

free(*ptr);

736

}

737

738

__attribute__((nonnull))

739

void cleanup_buffer(buffer *buf){

740

if(buf->allocated > 0){

741

#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 25)

742

explicit_bzero(buf->data, buf->allocated);

743

#else

744

memset(buf->data, '\0', buf->allocated);

745

#endif

746

}

747

if(buf->data != NULL){

748

if(munlock(buf->data, buf->allocated) != 0){

749

error(0, errno, "Failed to unlock memory of old buffer");

750

}

751

free(buf->data);

752

buf->data = NULL;

753

}

754

buf->length = 0;

755

buf->allocated = 0;

756

}

757

758

__attribute__((pure, nonnull, warn_unused_result))

759

bool string_set_contains(const string_set set, const char *const str){

760

for(const char *s = set.argz; s != NULL and set.argz_len > 0;

761

s = argz_next(set.argz, set.argz_len, s)){

762

if(strcmp(s, str) == 0){

763

return true;

764

}

765

}

766

return false;

767

}

768

769

__attribute__((nonnull, warn_unused_result))

770

bool string_set_add(string_set *const set, const char *const str){

771

if(string_set_contains(*set, str)){

772

return true;

773

}

774

error_t error = argz_add(&set->argz, &set->argz_len, str);

775

if(error == 0){

776

return true;

777

}

778

errno = error;

779

return false;

780

}

781

782

__attribute__((nonnull))

783

void string_set_clear(string_set *set){

784

free(set->argz);

785

set->argz = NULL;

786

set->argz_len = 0;

787

}

788

789

__attribute__((nonnull))

790

void string_set_swap(string_set *const set1, string_set *const set2){

791

/* Swap contents of two string sets */

792

{

793

char *const tmp_argz = set1->argz;

794

set1->argz = set2->argz;

795

set2->argz = tmp_argz;

796

}

797

{

798

const size_t tmp_argz_len = set1->argz_len;

799

set1->argz_len = set2->argz_len;

800

set2->argz_len = tmp_argz_len;

801

}

802

}

803

804

__attribute__((nonnull, warn_unused_result))

805

bool start_mandos_client(task_queue *const queue,

806

const int epoll_fd,

807

bool *const mandos_client_exited,

808

bool *const quit_now, buffer *const password,

809

bool *const password_is_read,

810

const struct sigaction *const

811

old_sigchld_action, const sigset_t sigmask,

812

const char *const helper_directory,

813

const uid_t user, const gid_t group,

814

const char *const *const argv){

815

int pipefds[2];

816

if(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK) != 0){

817

error(0, errno, "Failed to pipe2(..., O_CLOEXEC | O_NONBLOCK)");

818

return false;

819

}

820

821

const pid_t pid = fork();

822

if(pid == 0){

823

if(not restore_signal_handler(old_sigchld_action)){

824

_exit(EXIT_FAILURE);

825

}

826

if(not restore_sigmask(&sigmask)){

827

_exit(EXIT_FAILURE);

828

}

829

if(close(pipefds[0]) != 0){

830

error(0, errno, "Failed to close() parent pipe fd");

831

_exit(EXIT_FAILURE);

832

}

833

if(dup2(pipefds[1], STDOUT_FILENO) == -1){

834

error(0, errno, "Failed to dup2() pipe fd to stdout");

835

_exit(EXIT_FAILURE);

836

}

837

if(close(pipefds[1]) != 0){

838

error(0, errno, "Failed to close() old child pipe fd");

839

_exit(EXIT_FAILURE);

840

}

841

if(setenv("MANDOSPLUGINHELPERDIR", helper_directory, 1) != 0){

842

error(0, errno, "Failed to setenv(\"MANDOSPLUGINHELPERDIR\","

843

" \"%s\", 1)", helper_directory);

844

_exit(EXIT_FAILURE);

845

}

846

if(group != 0 and setresgid(group, 0, 0) == -1){

847

error(0, errno, "Failed to setresgid(-1, %" PRIuMAX ", %"

848

PRIuMAX")", (uintmax_t)group, (uintmax_t)group);

849

_exit(EXIT_FAILURE);

850

}

851

if(user != 0 and setresuid(user, 0, 0) == -1){

852

error(0, errno, "Failed to setresuid(-1, %" PRIuMAX ", %"

853

PRIuMAX")", (uintmax_t)user, (uintmax_t)user);

854

_exit(EXIT_FAILURE);

855

}

856

#ifdef __GNUC__

857

#pragma GCC diagnostic push

858

/* For historical reasons, the "argv" argument to execv() is not

859

const, but it is safe to override this. */

860

#pragma GCC diagnostic ignored "-Wcast-qual"

861

#endif

862

execv(argv[0], (char **)argv);

863

#ifdef __GNUC__

864

#pragma GCC diagnostic pop

865

#endif

866

error(0, errno, "execv(\"%s\", ...) failed", argv[0]);

867

_exit(EXIT_FAILURE);

868

}

869

close(pipefds[1]);

870

871

if(pid == -1){

872

error(0, errno, "Failed to fork()");

873

close(pipefds[0]);

874

return false;

875

}

876

877

if(not add_to_queue(queue, (task_context){

878

.func=wait_for_mandos_client_exit,

879

.pid=pid,

880

.mandos_client_exited=mandos_client_exited,

881

.quit_now=quit_now,

882

})){

883

error(0, errno, "Failed to add wait_for_mandos_client to queue");

884

close(pipefds[0]);

885

return false;

886

}

887

888

const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, pipefds[0],

889

&(struct epoll_event)

890

{ .events=EPOLLIN | EPOLLRDHUP });

891

if(ret != 0 and errno != EEXIST){

892

error(0, errno, "Failed to add file descriptor to epoll set");

893

close(pipefds[0]);

894

return false;

895

}

896

897

return add_to_queue(queue, (task_context){

898

.func=read_mandos_client_output,

899

.epoll_fd=epoll_fd,

900

.fd=pipefds[0],

901

.quit_now=quit_now,

902

.password=password,

903

.password_is_read=password_is_read,

904

});

905

}

906

907

__attribute__((nonnull))

908

void wait_for_mandos_client_exit(const task_context task,

909

task_queue *const queue){

910

const pid_t pid = task.pid;

911

bool *const mandos_client_exited = task.mandos_client_exited;

912

bool *const quit_now = task.quit_now;

913

914

int status;

915

switch(waitpid(pid, &status, WNOHANG)){

916

case 0: /* Not exited yet */

917

if(not add_to_queue(queue, task)){

918

error(0, errno, "Failed to add myself to queue");

919

*quit_now = true;

920

}

921

break;

922

case -1: /* Error */

923

error(0, errno, "waitpid(%" PRIdMAX ") failed", (intmax_t)pid);

924

if(errno != ECHILD){

925

kill(pid, SIGTERM);

926

}

927

*quit_now = true;

928

break;

929

default: /* Has exited */

930

*mandos_client_exited = true;

931

if((not WIFEXITED(status))

932

or (WEXITSTATUS(status) != EXIT_SUCCESS)){

933

error(0, 0, "Mandos client failed or was killed");

934

*quit_now = true;

935

}

936

}

937

}

938

939

__attribute__((nonnull))

940

void read_mandos_client_output(const task_context task,

941

task_queue *const queue){

942

buffer *const password = task.password;

943

bool *const quit_now = task.quit_now;

944

bool *const password_is_read = task.password_is_read;

945

const int fd = task.fd;

946

const int epoll_fd = task.epoll_fd;

947

948

const size_t new_potential_size = (password->length + PIPE_BUF);

949

if(password->allocated < new_potential_size){

950

char *const new_buffer = calloc(new_potential_size, 1);

951

if(new_buffer == NULL){

952

error(0, errno, "Failed to allocate %" PRIuMAX

953

" bytes for password", (uintmax_t)new_potential_size);

954

*quit_now = true;

955

close(fd);

956

return;

957

}

958

if(mlock(new_buffer, new_potential_size) != 0){

959

/* Warn but do not treat as fatal error */

960

if(errno != EPERM and errno != ENOMEM){

961

error(0, errno, "Failed to lock memory for password");

962

}

963

}

964

if(password->length > 0){

965

memcpy(new_buffer, password->data, password->length);

966

#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 25)

967

explicit_bzero(password->data, password->allocated);

968

#else

969

memset(password->data, '\0', password->allocated);

970

#endif

971

}

972

if(password->data != NULL){

973

if(munlock(password->data, password->allocated) != 0){

974

error(0, errno, "Failed to unlock memory of old buffer");

975

}

976

free(password->data);

977

}

978

password->data = new_buffer;

979

password->allocated = new_potential_size;

980

}

981

982

const ssize_t read_length = read(fd, password->data

983

+ password->length, PIPE_BUF);

984

985

if(read_length == 0){ /* EOF */

986

*password_is_read = true;

987

close(fd);

988

return;

989

}

990

if(read_length < 0 and errno != EAGAIN){ /* Actual error */

991

error(0, errno, "Failed to read password from Mandos client");

992

*quit_now = true;

993

close(fd);

994

return;

995

}

996

if(read_length > 0){ /* Data has been read */

997

password->length += (size_t)read_length;

998

}

999

1000

/* Either data was read, or EAGAIN was indicated, meaning no data

1001

available yet */

1002

1003

/* Re-add the fd to the epoll set */

1004

const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1005

&(struct epoll_event)

1006

{ .events=EPOLLIN | EPOLLRDHUP });

1007

if(ret != 0 and errno != EEXIST){

1008

error(0, errno, "Failed to re-add file descriptor to epoll set");

1009

*quit_now = true;

1010

close(fd);

1011

return;

1012

}

1013

1014

/* Re-add myself to the queue */

1015

if(not add_to_queue(queue, task)){

1016

error(0, errno, "Failed to add myself to queue");

1017

*quit_now = true;

1018

close(fd);

1019

}

1020

}

1021

1022

__attribute__((nonnull, warn_unused_result))

1023

bool add_inotify_dir_watch(task_queue *const queue,

1024

const int epoll_fd, bool *const quit_now,

1025

buffer *const password,

1026

const char *const dir,

1027

string_set *cancelled_filenames,

1028

const mono_microsecs *const current_time,

1029

bool *const mandos_client_exited,

1030

bool *const password_is_read){

1031

const int fd = inotify_init1(IN_NONBLOCK | IN_CLOEXEC);

1032

if(fd == -1){

1033

error(0, errno, "Failed to create inotify instance");

1034

return false;

1035

}

1036

1037

if(inotify_add_watch(fd, dir, IN_CLOSE_WRITE | IN_MOVED_TO

1038

| IN_MOVED_FROM| IN_DELETE | IN_EXCL_UNLINK

1039

| IN_ONLYDIR)

1040

== -1){

1041

error(0, errno, "Failed to create inotify watch on %s", dir);

1042

return false;

1043

}

1044

1045

/* Add the inotify fd to the epoll set */

1046

const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1047

&(struct epoll_event)

1048

{ .events=EPOLLIN | EPOLLRDHUP });

1049

if(ret != 0 and errno != EEXIST){

1050

error(0, errno, "Failed to add file descriptor to epoll set");

1051

close(fd);

1052

return false;

1053

}

1054

1055

const task_context read_inotify_event_task = {

1056

.func=read_inotify_event,

1057

.epoll_fd=epoll_fd,

1058

.quit_now=quit_now,

1059

.password=password,

1060

.fd=fd,

1061

.filename=strdup(dir),

1062

.cancelled_filenames=cancelled_filenames,

1063

.current_time=current_time,

1064

.mandos_client_exited=mandos_client_exited,

1065

.password_is_read=password_is_read,

1066

};

1067

if(read_inotify_event_task.filename == NULL){

1068

error(0, errno, "Failed to strdup(\"%s\")", dir);

1069

close(fd);

1070

return false;

1071

}

1072

1073

return add_to_queue(queue, read_inotify_event_task);

1074

}

1075

1076

__attribute__((nonnull))

1077

void read_inotify_event(const task_context task,

1078

task_queue *const queue){

1079

const int fd = task.fd;

1080

const int epoll_fd = task.epoll_fd;

1081

char *const filename = task.filename;

1082

bool *quit_now = task.quit_now;

1083

buffer *const password = task.password;

1084

string_set *const cancelled_filenames = task.cancelled_filenames;

1085

const mono_microsecs *const current_time = task.current_time;

1086

bool *const mandos_client_exited = task.mandos_client_exited;

1087

bool *const password_is_read = task.password_is_read;

1088

1089

/* "sufficient to read at least one event." - inotify(7) */

1090

const size_t ievent_size = (sizeof(struct inotify_event)

1091

+ NAME_MAX + 1);

1092

struct {

1093

struct inotify_event event;

1094

char name_buffer[NAME_MAX + 1];

1095

} ievent_buffer;

1096

struct inotify_event *const ievent = &ievent_buffer.event;

1097

1098

const ssize_t read_length = read(fd, ievent, ievent_size);

1099

if(read_length == 0){ /* EOF */

1100

error(0, 0, "Got EOF from inotify fd for directory %s", filename);

1101

*quit_now = true;

1102

cleanup_task(&task);

1103

return;

1104

}

1105

if(read_length < 0 and errno != EAGAIN){ /* Actual error */

1106

error(0, errno, "Failed to read from inotify fd for directory %s",

1107

filename);

1108

*quit_now = true;

1109

cleanup_task(&task);

1110

return;

1111

}

1112

if(read_length > 0 /* Data has been read */

1113

and fnmatch("ask.*", ievent->name, FNM_FILE_NAME) == 0){

1114

char *question_filename = NULL;

1115

const ssize_t question_filename_length

1116

= asprintf(&question_filename, "%s/%s", filename, ievent->name);

1117

if(question_filename_length < 0){

1118

error(0, errno, "Failed to create file name from directory name"

1119

" %s and file name %s", filename, ievent->name);

1120

} else {

1121

if(ievent->mask & (IN_CLOSE_WRITE | IN_MOVED_TO)){

1122

if(not add_to_queue(queue, (task_context){

1123

.func=open_and_parse_question,

1124

.epoll_fd=epoll_fd,

1125

.question_filename=question_filename,

1126

.filename=question_filename,

1127

.password=password,

1128

.cancelled_filenames=cancelled_filenames,

1129

.current_time=current_time,

1130

.mandos_client_exited=mandos_client_exited,

1131

.password_is_read=password_is_read,

1132

})){

1133

error(0, errno, "Failed to add open_and_parse_question task"

1134

" for file name %s to queue", filename);

1135

} else {

1136

/* Force the added task (open_and_parse_question) to run

1137

immediately */

1138

queue->next_run = 1;

1139

}

1140

} else if(ievent->mask & (IN_MOVED_FROM | IN_DELETE)){

1141

if(not string_set_add(cancelled_filenames,

1142

question_filename)){

1143

error(0, errno, "Could not add question %s to"

1144

" cancelled_questions", question_filename);

1145

*quit_now = true;

1146

free(question_filename);

1147

cleanup_task(&task);

1148

return;

1149

}

1150

free(question_filename);

1151

}

1152

}

1153

}

1154

1155

/* Either data was read, or EAGAIN was indicated, meaning no data

1156

available yet */

1157

1158

/* Re-add myself to the queue */

1159

if(not add_to_queue(queue, task)){

1160

error(0, errno, "Failed to re-add read_inotify_event(%s) to"

1161

" queue", filename);

1162

*quit_now = true;

1163

cleanup_task(&task);

1164

return;

1165

}

1166

1167

/* Re-add the fd to the epoll set */

1168

const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1169

&(struct epoll_event)

1170

{ .events=EPOLLIN | EPOLLRDHUP });

1171

if(ret != 0 and errno != EEXIST){

1172

error(0, errno, "Failed to re-add inotify file descriptor %d for"

1173

" directory %s to epoll set", fd, filename);

1174

/* Force the added task (read_inotify_event) to run again, at most

1175

one second from now */

1176

if((queue->next_run == 0)

1177

or (queue->next_run > (*current_time + 1000000))){

1178

queue->next_run = *current_time + 1000000;

1179

}

1180

}

1181

}

1182

1183

__attribute__((nonnull))

1184

void open_and_parse_question(const task_context task,

1185

task_queue *const queue){

1186

__attribute__((cleanup(cleanup_string)))

1187

char *question_filename = task.question_filename;

1188

const int epoll_fd = task.epoll_fd;

1189

buffer *const password = task.password;

1190

string_set *const cancelled_filenames = task.cancelled_filenames;

1191

const mono_microsecs *const current_time = task.current_time;

1192

bool *const mandos_client_exited = task.mandos_client_exited;

1193

bool *const password_is_read = task.password_is_read;

1194

1195

/* We use the GLib "Key-value file parser" functions to parse the

1196

question file. See <https://www.freedesktop.org/wiki/Software

1197

/systemd/PasswordAgents/> for specification of contents */

1198

__attribute__((nonnull))

1199

void cleanup_g_key_file(GKeyFile **key_file){

1200

if(*key_file != NULL){

1201

g_key_file_free(*key_file);

1202

}

1203

}

1204

1205

__attribute__((cleanup(cleanup_g_key_file)))

1206

GKeyFile *key_file = g_key_file_new();

1207

if(key_file == NULL){

1208

error(0, errno, "Failed g_key_file_new() for \"%s\"",

1209

question_filename);

1210

return;

1211

}

1212

GError *glib_error = NULL;

1213

if(g_key_file_load_from_file(key_file, question_filename,

1214

G_KEY_FILE_NONE, &glib_error) != TRUE){

1215

/* If a file was removed, we should ignore it, so */

1216

/* only show error message if file actually existed */

1217

if(glib_error->code != G_FILE_ERROR_NOENT){

1218

error(0, 0, "Failed to load question data from file \"%s\": %s",

1219

question_filename, glib_error->message);

1220

}

1221

return;

1222

}

1223

1224

__attribute__((cleanup(cleanup_string)))

1225

char *socket_name = g_key_file_get_string(key_file, "Ask",

1226

"Socket",

1227

&glib_error);

1228

if(socket_name == NULL){

1229

error(0, 0, "Question file \"%s\" did not contain \"Socket\": %s",

1230

question_filename, glib_error->message);

1231

return;

1232

}

1233

1234

if(strlen(socket_name) == 0){

1235

error(0, 0, "Question file \"%s\" had empty \"Socket\" value",

1236

question_filename);

1237

return;

1238

}

1239

1240

const guint64 pid = g_key_file_get_uint64(key_file, "Ask", "PID",

1241

&glib_error);

1242

if(glib_error != NULL){

1243

error(0, 0, "Question file \"%s\" contained bad \"PID\": %s",

1244

question_filename, glib_error->message);

1245

return;

1246

}

1247

1248

if((pid != (guint64)((pid_t)pid))

1249

or (kill((pid_t)pid, 0) != 0)){

1250

error(0, 0, "PID %" PRIuMAX " in question file \"%s\" is bad or"

1251

" does not exist", (uintmax_t)pid, question_filename);

1252

return;

1253

}

1254

1255

guint64 notafter = g_key_file_get_uint64(key_file, "Ask",

1256

"NotAfter", &glib_error);

1257

if(glib_error != NULL){

1258

if(glib_error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND){

1259

error(0, 0, "Question file \"%s\" contained bad \"NotAfter\":"

1260

" %s", question_filename, glib_error->message);

1261

}

1262

notafter = 0;

1263

}

1264

if(notafter != 0){

1265

if(queue->next_run == 0 or (queue->next_run > notafter)){

1266

queue->next_run = notafter;

1267

}

1268

if(*current_time >= notafter){

1269

return;

1270

}

1271

}

1272

1273

const task_context connect_question_socket_task = {

1274

.func=connect_question_socket,

1275

.question_filename=strdup(question_filename),

1276

.epoll_fd=epoll_fd,

1277

.password=password,

1278

.filename=strdup(socket_name),

1279

.cancelled_filenames=task.cancelled_filenames,

1280

.mandos_client_exited=mandos_client_exited,

1281

.password_is_read=password_is_read,

1282

.current_time=current_time,

1283

};

1284

if(connect_question_socket_task.question_filename == NULL

1285

or connect_question_socket_task.filename == NULL

1286

or not add_to_queue(queue, connect_question_socket_task)){

1287

error(0, errno, "Failed to add connect_question_socket for socket"

1288

" %s (from \"%s\") to queue", socket_name,

1289

question_filename);

1290

cleanup_task(&connect_question_socket_task);

1291

return;

1292

}

1293

/* Force the added task (connect_question_socket) to run

1294

immediately */

1295

queue->next_run = 1;

1296

1297

if(notafter > 0){

1298

char *const dup_filename = strdup(question_filename);

1299

const task_context cancel_old_question_task = {

1300

.func=cancel_old_question,

1301

.question_filename=dup_filename,

1302

.notafter=notafter,

1303

.filename=dup_filename,

1304

.cancelled_filenames=cancelled_filenames,

1305

.current_time=current_time,

1306

};

1307

if(cancel_old_question_task.question_filename == NULL

1308

or not add_to_queue(queue, cancel_old_question_task)){

1309

error(0, errno, "Failed to add cancel_old_question for file "

1310

"\"%s\" to queue", question_filename);

1311

cleanup_task(&cancel_old_question_task);

1312

return;

1313

}

1314

}

1315

}

1316

1317

__attribute__((nonnull))

1318

void cancel_old_question(const task_context task,

1319

task_queue *const queue){

1320

char *const question_filename = task.question_filename;

1321

string_set *const cancelled_filenames = task.cancelled_filenames;

1322

const mono_microsecs notafter = task.notafter;

1323

const mono_microsecs *const current_time = task.current_time;

1324

1325

if(*current_time >= notafter){

1326

if(not string_set_add(cancelled_filenames, question_filename)){

1327

error(0, errno, "Failed to cancel question for file %s",

1328

question_filename);

1329

}

1330

cleanup_task(&task);

1331

return;

1332

}

1333

1334

if(not add_to_queue(queue, task)){

1335

error(0, errno, "Failed to add cancel_old_question for file "

1336

"%s to queue", question_filename);

1337

cleanup_task(&task);

1338

return;

1339

}

1340

1341

if((queue->next_run == 0) or (queue->next_run > notafter)){

1342

queue->next_run = notafter;

1343

}

1344

}

1345

1346

__attribute__((nonnull))

1347

void connect_question_socket(const task_context task,

1348

task_queue *const queue){

1349

char *const question_filename = task.question_filename;

1350

char *const filename = task.filename;

1351

const int epoll_fd = task.epoll_fd;

1352

buffer *const password = task.password;

1353

string_set *const cancelled_filenames = task.cancelled_filenames;

1354

bool *const mandos_client_exited = task.mandos_client_exited;

1355

bool *const password_is_read = task.password_is_read;

1356

const mono_microsecs *const current_time = task.current_time;

1357

1358

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

1359

1360

if(sizeof(sock_name.sun_path) <= strlen(filename)){

1361

error(0, 0, "Socket filename is larger than"

1362

" sizeof(sockaddr_un.sun_path); %" PRIuMAX ": \"%s\"",

1363

(uintmax_t)sizeof(sock_name.sun_path), filename);

1364

if(not string_set_add(cancelled_filenames, question_filename)){

1365

error(0, errno, "Failed to cancel question for file %s",

1366

question_filename);

1367

}

1368

cleanup_task(&task);

1369

return;

1370

}

1371

1372

const int fd = socket(PF_LOCAL, SOCK_DGRAM

1373

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

1374

if(fd < 0){

1375

error(0, errno,

1376

"Failed to create socket(PF_LOCAL, SOCK_DGRAM, 0)");

1377

if(not add_to_queue(queue, task)){

1378

error(0, errno, "Failed to add connect_question_socket for file"

1379

" \"%s\" and socket \"%s\" to queue", question_filename,

1380

filename);

1381

cleanup_task(&task);

1382

} else {

1383

/* Force the added task (connect_question_socket) to run

1384

immediately */

1385

queue->next_run = 1;

1386

}

1387

return;

1388

}

1389

1390

strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));

1391

if(connect(fd, (struct sockaddr *)&sock_name,

1392

(socklen_t)SUN_LEN(&sock_name)) != 0){

1393

error(0, errno, "Failed to connect socket to \"%s\"", filename);

1394

if(not add_to_queue(queue, task)){

1395

error(0, errno, "Failed to add connect_question_socket for file"

1396

" \"%s\" and socket \"%s\" to queue", question_filename,

1397

filename);

1398

cleanup_task(&task);

1399

} else {

1400

/* Force the added task (connect_question_socket) to run again,

1401

at most one second from now */

1402

if((queue->next_run == 0)

1403

or (queue->next_run > (*current_time + 1000000))){

1404

queue->next_run = *current_time + 1000000;

1405

}

1406

}

1407

return;

1408

}

1409

1410

/* Not necessary, but we can try, and merely warn on failure */

1411

if(shutdown(fd, SHUT_RD) != 0){

1412

error(0, errno, "Failed to shutdown reading from socket \"%s\"",

1413

filename);

1414

}

1415

1416

/* Add the fd to the epoll set */

1417

if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1418

&(struct epoll_event){ .events=EPOLLOUT })

1419

!= 0){

1420

error(0, errno, "Failed to add inotify file descriptor %d for"

1421

" socket %s to epoll set", fd, filename);

1422

if(not add_to_queue(queue, task)){

1423

error(0, errno, "Failed to add connect_question_socket for file"

1424

" \"%s\" and socket \"%s\" to queue", question_filename,

1425

filename);

1426

cleanup_task(&task);

1427

} else {

1428

/* Force the added task (connect_question_socket) to run again,

1429

at most one second from now */

1430

if((queue->next_run == 0)

1431

or (queue->next_run > (*current_time + 1000000))){

1432

queue->next_run = *current_time + 1000000;

1433

}

1434

}

1435

return;

1436

}

1437

1438

/* add task send_password_to_socket to queue */

1439

const task_context send_password_to_socket_task = {

1440

.func=send_password_to_socket,

1441

.question_filename=question_filename,

1442

.filename=filename,

1443

.epoll_fd=epoll_fd,

1444

.fd=fd,

1445

.password=password,

1446

.cancelled_filenames=cancelled_filenames,

1447

.mandos_client_exited=mandos_client_exited,

1448

.password_is_read=password_is_read,

1449

.current_time=current_time,

1450

};

1451

1452

if(not add_to_queue(queue, send_password_to_socket_task)){

1453

error(0, errno, "Failed to add send_password_to_socket for"

1454

" file \"%s\" and socket \"%s\" to queue",

1455

question_filename, filename);

1456

cleanup_task(&send_password_to_socket_task);

1457

}

1458

}

1459

1460

__attribute__((nonnull))

1461

void send_password_to_socket(const task_context task,

1462

task_queue *const queue){

1463

char *const question_filename=task.question_filename;

1464

char *const filename=task.filename;

1465

const int epoll_fd=task.epoll_fd;

1466

const int fd=task.fd;

1467

buffer *const password=task.password;

1468

string_set *const cancelled_filenames=task.cancelled_filenames;

1469

bool *const mandos_client_exited = task.mandos_client_exited;

1470

bool *const password_is_read = task.password_is_read;

1471

const mono_microsecs *const current_time = task.current_time;

1472

1473

if(*mandos_client_exited and *password_is_read){

1474

1475

const size_t send_buffer_length = password->length + 2;

1476

char *send_buffer = malloc(send_buffer_length);

1477

if(send_buffer == NULL){

1478

error(0, errno, "Failed to allocate send_buffer");

1479

} else {

1480

if(mlock(send_buffer, send_buffer_length) != 0){

1481

/* Warn but do not treat as fatal error */

1482

if(errno != EPERM and errno != ENOMEM){

1483

error(0, errno, "Failed to lock memory for password"

1484

" buffer");

1485

}

1486

}

1487

/* “[…] send a single datagram to the socket consisting of the

1488

password string either prefixed with "+" or with "-"

1489

depending on whether the password entry was successful or

1490

not. You may but don't have to include a final NUL byte in

1491

your message.

1492

1493

— <https://www.freedesktop.org/wiki/Software/systemd/

1494

PasswordAgents/> (Wed 08 Oct 2014 02:14:28 AM UTC)

1495

*/

1496

send_buffer[0] = '+'; /* Prefix with "+" */

1497

/* Always add an extra NUL */

1498

send_buffer[password->length + 1] = '\0';

1499

if(password->length > 0){

1500

memcpy(send_buffer + 1, password->data, password->length);

1501

}

1502

errno = 0;

1503

ssize_t ssret = send(fd, send_buffer, send_buffer_length,

1504

MSG_NOSIGNAL);

1505

const error_t saved_errno = errno;

1506

#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 25)

1507

explicit_bzero(send_buffer, send_buffer_length);

1508

#else

1509

memset(send_buffer, '\0', send_buffer_length);

1510

#endif

1511

if(munlock(send_buffer, send_buffer_length) != 0){

1512

error(0, errno, "Failed to unlock memory of send buffer");

1513

}

1514

free(send_buffer);

1515

if(ssret < 0 or ssret < (ssize_t)send_buffer_length){

1516

switch(saved_errno){

1517

case EINTR:

1518

case ENOBUFS:

1519

case ENOMEM:

1520

case EADDRINUSE:

1521

case ECONNREFUSED:

1522

case ECONNRESET:

1523

case ENOENT:

1524

case ETOOMANYREFS:

1525

case EAGAIN:

1526

/* Retry, below */

1527

break;

1528

case EMSGSIZE:

1529

error(0, 0, "Password of size %" PRIuMAX " is too big",

1530

(uintmax_t)password->length);

1531

#if __GNUC__ < 7

1532

/* FALLTHROUGH */

1533

#else

1534

__attribute__((fallthrough));

1535

#endif

1536

case 0:

1537

if(ssret >= 0 and ssret < (ssize_t)send_buffer_length){

1538

error(0, 0, "Password only partially sent to socket");

1539

}

1540

#if __GNUC__ < 7

1541

/* FALLTHROUGH */

1542

#else

1543

__attribute__((fallthrough));

1544

#endif

1545

default:

1546

error(0, saved_errno, "Failed to send() to socket %s",

1547

filename);

1548

if(not string_set_add(cancelled_filenames,

1549

question_filename)){

1550

error(0, errno, "Failed to cancel question for file %s",

1551

question_filename);

1552

}

1553

cleanup_task(&task);

1554

return;

1555

}

1556

} else {

1557

/* Success */

1558

cleanup_task(&task);

1559

return;

1560

}

1561

}

1562

}

1563

1564

/* We failed or are not ready yet; retry later */

1565

1566

if(not add_to_queue(queue, task)){

1567

error(0, errno, "Failed to add send_password_to_socket for"

1568

" file %s and socket %s to queue", question_filename,

1569

filename);

1570

cleanup_task(&task);

1571

}

1572

1573

/* Add the fd to the epoll set */

1574

if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1575

&(struct epoll_event){ .events=EPOLLOUT })

1576

!= 0){

1577

error(0, errno, "Failed to add socket file descriptor %d for"

1578

" socket %s to epoll set", fd, filename);

1579

/* Force the added task (send_password_to_socket) to run again, at

1580

most one second from now */

1581

if((queue->next_run == 0)

1582

or (queue->next_run > (*current_time + 1000000))){

1583

queue->next_run = *current_time + 1000000;

1584

}

1585

}

1586

}

1587

1588

__attribute__((warn_unused_result))

1589

bool add_existing_questions(task_queue *const queue,

1590

const int epoll_fd,

1591

buffer *const password,

1592

string_set *cancelled_filenames,

1593

const mono_microsecs *const current_time,

1594

bool *const mandos_client_exited,

1595

bool *const password_is_read,

1596

const char *const dirname){

1597

__attribute__((cleanup(cleanup_string)))

1598

char *dir_pattern = NULL;

1599

const int ret = asprintf(&dir_pattern, "%s/ask.*", dirname);

1600

if(ret < 0 or dir_pattern == NULL){

1601

error(0, errno, "Could not create glob pattern for directory %s",

1602

dirname);

1603

return false;

1604

}

1605

__attribute__((cleanup(globfree)))

1606

glob_t question_filenames = {};

1607

switch(glob(dir_pattern, GLOB_ERR | GLOB_NOSORT | GLOB_MARK,

1608

NULL, &question_filenames)){

1609

case GLOB_ABORTED:

1610

default:

1611

error(0, errno, "Failed to open directory %s", dirname);

1612

return false;

1613

case GLOB_NOMATCH:

1614

error(0, errno, "There are no question files in %s", dirname);

1615

return false;

1616

case GLOB_NOSPACE:

1617

error(0, errno, "Could not allocate memory for question file"

1618

" names in %s", dirname);

1619

#if __GNUC__ < 7

1620

/* FALLTHROUGH */

1621

#else

1622

__attribute__((fallthrough));

1623

#endif

1624

case 0:

1625

for(size_t i = 0; i < question_filenames.gl_pathc; i++){

1626

char *const question_filename = strdup(question_filenames

1627

.gl_pathv[i]);

1628

const task_context task = {

1629

.func=open_and_parse_question,

1630

.epoll_fd=epoll_fd,

1631

.question_filename=question_filename,

1632

.filename=question_filename,

1633

.password=password,

1634

.cancelled_filenames=cancelled_filenames,

1635

.current_time=current_time,

1636

.mandos_client_exited=mandos_client_exited,

1637

.password_is_read=password_is_read,

1638

};

1639

1640

if(question_filename == NULL

1641

or not add_to_queue(queue, task)){

1642

error(0, errno, "Failed to add open_and_parse_question for"

1643

" file %s to queue",

1644

question_filenames.gl_pathv[i]);

1645

free(question_filename);

1646

} else {

1647

queue->next_run = 1;

1648

}

1649

}

1650

return true;

1651

}

1652

}

1653

1654

__attribute__((nonnull, warn_unused_result))

1655

bool wait_for_event(const int epoll_fd,

1656

const mono_microsecs queue_next_run,

1657

const mono_microsecs current_time){

1658

__attribute__((const))

1659

int milliseconds_to_wait(const mono_microsecs currtime,

1660

const mono_microsecs nextrun){

1661

if(currtime >= nextrun){

1662

return 0;

1663

}

1664

const uintmax_t wait_time_ms = (nextrun - currtime) / 1000;

1665

if(wait_time_ms > (uintmax_t)INT_MAX){

1666

return INT_MAX;

1667

}

1668

return (int)wait_time_ms;

1669

}

1670

1671

const int wait_time_ms = milliseconds_to_wait(current_time,

1672

queue_next_run);

1673

1674

/* Prepare unblocking of SIGCHLD during epoll_pwait */

1675

sigset_t temporary_unblocked_sigmask;

1676

/* Get current signal mask */

1677

if(pthread_sigmask(-1, NULL, &temporary_unblocked_sigmask) != 0){

1678

return false;

1679

}

1680

/* Remove SIGCHLD from the signal mask */

1681

if(sigdelset(&temporary_unblocked_sigmask, SIGCHLD) != 0){

1682

return false;

1683

}

1684

struct epoll_event events[8]; /* Ignored */

1685

int ret = epoll_pwait(epoll_fd, events,

1686

sizeof(events) / sizeof(struct epoll_event),

1687

queue_next_run == 0 ? -1 : (int)wait_time_ms,

1688

&temporary_unblocked_sigmask);

1689

if(ret < 0 and errno != EINTR){

1690

error(0, errno, "Failed epoll_pwait(epfd=%d, ..., timeout=%d,"

1691

" ...", epoll_fd,

1692

queue_next_run == 0 ? -1 : (int)wait_time_ms);

1693

return false;

1694

}

1695

return clear_all_fds_from_epoll_set(epoll_fd);

1696

}

1697

1698

bool clear_all_fds_from_epoll_set(const int epoll_fd){

1699

/* Create a new empty epoll set */

1700

__attribute__((cleanup(cleanup_close)))

1701

const int new_epoll_fd = epoll_create1(EPOLL_CLOEXEC);

1702

if(new_epoll_fd < 0){

1703

return false;

1704

}

1705

/* dup3() the new epoll set fd over the old one, replacing it */

1706

if(dup3(new_epoll_fd, epoll_fd, O_CLOEXEC) < 0){

1707

return false;

1708

}

1709

return true;

1710

}

1711

1712

__attribute__((nonnull, warn_unused_result))

1713

bool run_queue(task_queue **const queue,

1714

string_set *const cancelled_filenames,

1715

bool *const quit_now){

1716

1717

task_queue *new_queue = create_queue();

1718

if(new_queue == NULL){

1719

return false;

1720

}

1721

1722

__attribute__((cleanup(string_set_clear)))

1723

string_set old_cancelled_filenames = {};

1724

string_set_swap(cancelled_filenames, &old_cancelled_filenames);

1725

1726

/* Declare i outside the for loop, since we might need i after the

1727

loop in case we aborted in the middle */

1728

size_t i;

1729

for(i=0; i < (*queue)->length and not *quit_now; i++){

1730

task_context *const task = &((*queue)->tasks[i]);

1731

const char *const question_filename = task->question_filename;

1732

/* Skip any task referencing a cancelled question filename */

1733

if(question_filename != NULL

1734

and string_set_contains(old_cancelled_filenames,

1735

question_filename)){

1736

cleanup_task(task);

1737

continue;

1738

}

1739

task->func(*task, new_queue);

1740

}

1741

1742

if(*quit_now){

1743

/* we might be in the middle of the queue, so clean up any

1744

remaining tasks in the current queue */

1745

for(; i < (*queue)->length; i++){

1746

cleanup_task(&((*queue)->tasks[i]));

1747

}

1748

free_queue(*queue);

1749

*queue = new_queue;

1750

new_queue = NULL;

1751

return false;

1752

}

1753

free_queue(*queue);

1754

*queue = new_queue;

1755

new_queue = NULL;

1756

1757

return true;

1758

}

1759

1760

/* End of regular code section */

1761

1762

/* Start of tests section; here are the tests for the above code */

1763

1764

/* This "fixture" data structure is used by the test setup and

1765

teardown functions */

1766

typedef struct {

1767

struct sigaction orig_sigaction;

1768

sigset_t orig_sigmask;

1769

} test_fixture;

1770

1771

static void test_setup(test_fixture *fixture,

1772

__attribute__((unused))

1773

gconstpointer user_data){

1774

g_assert_true(setup_signal_handler(&fixture->orig_sigaction));

1775

g_assert_true(block_sigchld(&fixture->orig_sigmask));

1776

}

1777

1778

static void test_teardown(test_fixture *fixture,

1779

__attribute__((unused))

1780

gconstpointer user_data){

1781

g_assert_true(restore_signal_handler(&fixture->orig_sigaction));

1782

g_assert_true(restore_sigmask(&fixture->orig_sigmask));

1783

}

1784

1785

/* Utility function used by tests to search queue for matching task */

1786

__attribute__((pure, nonnull, warn_unused_result))

1787

static task_context *find_matching_task(const task_queue *const queue,

1788

const task_context task){

1789

/* The argument "task" structure is a pattern to match; 0 in any

1790

member means any value matches, otherwise the value must match.

1791

The filename strings are compared by strcmp(), not by pointer. */

1792

for(size_t i = 0; i < queue->length; i++){

1793

task_context *const current_task = queue->tasks+i;

1794

/* Check all members of task_context, if set to a non-zero value.

1795

If a member does not match, continue to next task in queue */

1796

1797

/* task_func *const func */

1798

if(task.func != NULL and current_task->func != task.func){

1799

continue;

1800

}

1801

/* char *const question_filename; */

1802

if(task.question_filename != NULL

1803

and (current_task->question_filename == NULL

1804

or strcmp(current_task->question_filename,

1805

task.question_filename) != 0)){

1806

continue;

1807

}

1808

/* const pid_t pid; */

1809

if(task.pid != 0 and current_task->pid != task.pid){

1810

continue;

1811

}

1812

/* const int epoll_fd; */

1813

if(task.epoll_fd != 0

1814

and current_task->epoll_fd != task.epoll_fd){

1815

continue;

1816

}

1817

/* bool *const quit_now; */

1818

if(task.quit_now != NULL

1819

and current_task->quit_now != task.quit_now){

1820

continue;

1821

}

1822

/* const int fd; */

1823

if(task.fd != 0 and current_task->fd != task.fd){

1824

continue;

1825

}

1826

/* bool *const mandos_client_exited; */

1827

if(task.mandos_client_exited != NULL

1828

and current_task->mandos_client_exited

1829

!= task.mandos_client_exited){

1830

continue;

1831

}

1832

/* buffer *const password; */

1833

if(task.password != NULL

1834

and current_task->password != task.password){

1835

continue;

1836

}

1837

/* bool *const password_is_read; */

1838

if(task.password_is_read != NULL

1839

and current_task->password_is_read != task.password_is_read){

1840

continue;

1841

}

1842

/* char *filename; */

1843

if(task.filename != NULL

1844

and (current_task->filename == NULL

1845

or strcmp(current_task->filename, task.filename) != 0)){

1846

continue;

1847

}

1848

/* string_set *const cancelled_filenames; */

1849

if(task.cancelled_filenames != NULL

1850

and current_task->cancelled_filenames

1851

!= task.cancelled_filenames){

1852

continue;

1853

}

1854

/* const mono_microsecs notafter; */

1855

if(task.notafter != 0

1856

and current_task->notafter != task.notafter){

1857

continue;

1858

}

1859

/* const mono_microsecs *const current_time; */

1860

if(task.current_time != NULL

1861

and current_task->current_time != task.current_time){

1862

continue;

1863

}

1864

/* Current task matches all members; return it */

1865

return current_task;

1866

}

1867

/* No task in queue matches passed pattern task */

1868

return NULL;

1869

}

1870

1871

static void test_create_queue(__attribute__((unused))

1872

test_fixture *fixture,

1873

__attribute__((unused))

1874

gconstpointer user_data){

1875

__attribute__((cleanup(cleanup_queue)))

1876

task_queue *const queue = create_queue();

1877

g_assert_nonnull(queue);

1878

g_assert_null(queue->tasks);

1879

g_assert_true(queue->length == 0);

1880

g_assert_true(queue->next_run == 0);

1881

}

1882

1883

static task_func dummy_func;

1884

1885

static void test_add_to_queue(__attribute__((unused))

1886

test_fixture *fixture,

1887

__attribute__((unused))

1888

gconstpointer user_data){

1889

__attribute__((cleanup(cleanup_queue)))

1890

task_queue *queue = create_queue();

1891

g_assert_nonnull(queue);

1892

1893

g_assert_true(add_to_queue(queue,

1894

(task_context){ .func=dummy_func }));

1895

g_assert_true(queue->length == 1);

1896

g_assert_nonnull(queue->tasks);

1897

g_assert_true(queue->tasks[0].func == dummy_func);

1898

}

1899

1900

static void test_add_to_queue_overflow(__attribute__((unused))

1901

test_fixture *fixture,

1902

__attribute__((unused))

1903

gconstpointer user_data){

1904

__attribute__((cleanup(cleanup_queue)))

1905

task_queue *queue = create_queue();

1906

g_assert_nonnull(queue);

1907

g_assert_true(queue->length == 0);

1908

queue->length = SIZE_MAX / sizeof(task_context); /* fake max size */

1909

1910

FILE *real_stderr = stderr;

1911

FILE *devnull = fopen("/dev/null", "we");

1912

g_assert_nonnull(devnull);

1913

stderr = devnull;

1914

const bool ret = add_to_queue(queue,

1915

(task_context){ .func=dummy_func });

1916

g_assert_true(errno == ENOMEM);

1917

g_assert_false(ret);

1918

stderr = real_stderr;

1919

g_assert_cmpint(fclose(devnull), ==, 0);

1920

queue->length = 0; /* Restore real size */

1921

}

1922

1923

static void dummy_func(__attribute__((unused))

1924

const task_context task,

1925

__attribute__((unused))

1926

task_queue *const queue){

1927

}

1928

1929

static void test_queue_has_question_empty(__attribute__((unused))

1930

test_fixture *fixture,

1931

__attribute__((unused))

1932

gconstpointer user_data){

1933

__attribute__((cleanup(cleanup_queue)))

1934

task_queue *queue = create_queue();

1935

g_assert_nonnull(queue);

1936

g_assert_false(queue_has_question(queue));

1937

}

1938

1939

static void test_queue_has_question_false(__attribute__((unused))

1940

test_fixture *fixture,

1941

__attribute__((unused))

1942

gconstpointer user_data){

1943

__attribute__((cleanup(cleanup_queue)))

1944

task_queue *queue = create_queue();

1945

g_assert_nonnull(queue);

1946

g_assert_true(add_to_queue(queue,

1947

(task_context){ .func=dummy_func }));

1948

g_assert_false(queue_has_question(queue));

1949

}

1950

1951

static void test_queue_has_question_true(__attribute__((unused))

1952

test_fixture *fixture,

1953

__attribute__((unused))

1954

gconstpointer user_data){

1955

__attribute__((cleanup(cleanup_queue)))

1956

task_queue *queue = create_queue();

1957

g_assert_nonnull(queue);

1958

char *const question_filename

1959

= strdup("/nonexistent/question_filename");

1960

g_assert_nonnull(question_filename);

1961

task_context task = {

1962

.func=dummy_func,

1963

.question_filename=question_filename,

1964

};

1965

g_assert_true(add_to_queue(queue, task));

1966

g_assert_true(queue_has_question(queue));

1967

}

1968

1969

static void test_queue_has_question_false2(__attribute__((unused))

1970

test_fixture *fixture,

1971

__attribute__((unused))

1972

gconstpointer user_data){

1973

__attribute__((cleanup(cleanup_queue)))

1974

task_queue *queue = create_queue();

1975

g_assert_nonnull(queue);

1976

task_context task = { .func=dummy_func };

1977

g_assert_true(add_to_queue(queue, task));

1978

g_assert_true(add_to_queue(queue, task));

1979

g_assert_cmpint((int)queue->length, ==, 2);

1980

g_assert_false(queue_has_question(queue));

1981

}

1982

1983

static void test_queue_has_question_true2(__attribute__((unused))

1984

test_fixture *fixture,

1985

__attribute__((unused))

1986

gconstpointer user_data){

1987

__attribute__((cleanup(cleanup_queue)))

1988

task_queue *queue = create_queue();

1989

g_assert_nonnull(queue);

1990

task_context task1 = { .func=dummy_func };

1991

g_assert_true(add_to_queue(queue, task1));

1992

char *const question_filename

1993

= strdup("/nonexistent/question_filename");

1994

g_assert_nonnull(question_filename);

1995

task_context task2 = {

1996

.func=dummy_func,

1997

.question_filename=question_filename,

1998

};

1999

g_assert_true(add_to_queue(queue, task2));

2000

g_assert_cmpint((int)queue->length, ==, 2);

2001

g_assert_true(queue_has_question(queue));

2002

}

2003

2004

static void test_cleanup_buffer(__attribute__((unused))

2005

test_fixture *fixture,

2006

__attribute__((unused))

2007

gconstpointer user_data){

2008

buffer buf = {};

2009

2010

const size_t buffersize = 10;

2011

2012

buf.data = malloc(buffersize);

2013

g_assert_nonnull(buf.data);

2014

if(mlock(buf.data, buffersize) != 0){

2015

g_assert_true(errno == EPERM or errno == ENOMEM);

2016

}

2017

2018

cleanup_buffer(&buf);

2019

g_assert_null(buf.data);

2020

}

2021

2022

static

2023

void test_string_set_new_set_contains_nothing(__attribute__((unused))

2024

test_fixture *fixture,

2025

__attribute__((unused))

2026

gconstpointer

2027

user_data){

2028

__attribute__((cleanup(string_set_clear)))

2029

string_set set = {};

2030

g_assert_false(string_set_contains(set, "")); /* Empty string */

2031

g_assert_false(string_set_contains(set, "test_string"));

2032

}

2033

2034

static void

2035

test_string_set_with_added_string_contains_it(__attribute__((unused))

2036

test_fixture *fixture,

2037

__attribute__((unused))

2038

gconstpointer

2039

user_data){

2040

__attribute__((cleanup(string_set_clear)))

2041

string_set set = {};

2042

g_assert_true(string_set_add(&set, "test_string"));

2043

g_assert_true(string_set_contains(set, "test_string"));

2044

}

2045

2046

static void

2047

test_string_set_cleared_does_not_contain_str(__attribute__((unused))

2048

test_fixture *fixture,

2049

__attribute__((unused))

2050

gconstpointer user_data){

2051

__attribute__((cleanup(string_set_clear)))

2052

string_set set = {};

2053

g_assert_true(string_set_add(&set, "test_string"));

2054

string_set_clear(&set);

2055

g_assert_false(string_set_contains(set, "test_string"));

2056

}

2057

2058

static

2059

void test_string_set_swap_one_with_empty(__attribute__((unused))

2060

test_fixture *fixture,

2061

__attribute__((unused))

2062

gconstpointer user_data){

2063

__attribute__((cleanup(string_set_clear)))

2064

string_set set1 = {};

2065

__attribute__((cleanup(string_set_clear)))

2066

string_set set2 = {};

2067

g_assert_true(string_set_add(&set1, "test_string1"));

2068

string_set_swap(&set1, &set2);

2069

g_assert_false(string_set_contains(set1, "test_string1"));

2070

g_assert_true(string_set_contains(set2, "test_string1"));

2071

}

2072

2073

static

2074

void test_string_set_swap_empty_with_one(__attribute__((unused))

2075

test_fixture *fixture,

2076

__attribute__((unused))

2077

gconstpointer user_data){

2078

__attribute__((cleanup(string_set_clear)))

2079

string_set set1 = {};

2080

__attribute__((cleanup(string_set_clear)))

2081

string_set set2 = {};

2082

g_assert_true(string_set_add(&set2, "test_string2"));

2083

string_set_swap(&set1, &set2);

2084

g_assert_true(string_set_contains(set1, "test_string2"));

2085

g_assert_false(string_set_contains(set2, "test_string2"));

2086

}

2087

2088

static void test_string_set_swap_one_with_one(__attribute__((unused))

2089

test_fixture *fixture,

2090

__attribute__((unused))

2091

gconstpointer

2092

user_data){

2093

__attribute__((cleanup(string_set_clear)))

2094

string_set set1 = {};

2095

__attribute__((cleanup(string_set_clear)))

2096

string_set set2 = {};

2097

g_assert_true(string_set_add(&set1, "test_string1"));

2098

g_assert_true(string_set_add(&set2, "test_string2"));

2099

string_set_swap(&set1, &set2);

2100

g_assert_false(string_set_contains(set1, "test_string1"));

2101

g_assert_true(string_set_contains(set1, "test_string2"));

2102

g_assert_false(string_set_contains(set2, "test_string2"));

2103

g_assert_true(string_set_contains(set2, "test_string1"));

2104

}

2105

2106

static bool fd_has_cloexec_and_nonblock(const int);

2107

2108

static bool epoll_set_contains(int, int, uint32_t);

2109

2110

static void test_start_mandos_client(test_fixture *fixture,

2111

__attribute__((unused))

2112

gconstpointer user_data){

2113

2114

bool mandos_client_exited = false;

2115

bool quit_now = false;

2116

__attribute__((cleanup(cleanup_close)))

2117

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2118

g_assert_cmpint(epoll_fd, >=, 0);

2119

__attribute__((cleanup(cleanup_queue)))

2120

task_queue *queue = create_queue();

2121

g_assert_nonnull(queue);

2122

buffer password = {};

2123

bool password_is_read = false;

2124

const char helper_directory[] = "/nonexistent";

2125

const char *const argv[] = { "/bin/true", NULL };

2126

2127

g_assert_true(start_mandos_client(queue, epoll_fd,

2128

&mandos_client_exited, &quit_now,

2129

&password, &password_is_read,

2130

&fixture->orig_sigaction,

2131

fixture->orig_sigmask,

2132

helper_directory, 0, 0, argv));

2133

2134

g_assert_cmpuint((unsigned int)queue->length, >=, 2);

2135

2136

const task_context *const added_wait_task

2137

= find_matching_task(queue, (task_context){

2138

.func=wait_for_mandos_client_exit,

2139

.mandos_client_exited=&mandos_client_exited,

2140

.quit_now=&quit_now,

2141

});

2142

g_assert_nonnull(added_wait_task);

2143

g_assert_cmpint(added_wait_task->pid, >, 0);

2144

g_assert_cmpint(kill(added_wait_task->pid, SIGKILL), ==, 0);

2145

waitpid(added_wait_task->pid, NULL, 0);

2146

2147

const task_context *const added_read_task

2148

= find_matching_task(queue, (task_context){

2149

.func=read_mandos_client_output,

2150

.epoll_fd=epoll_fd,

2151

.password=&password,

2152

.password_is_read=&password_is_read,

2153

.quit_now=&quit_now,

2154

});

2155

g_assert_nonnull(added_read_task);

2156

g_assert_cmpint(added_read_task->fd, >, 2);

2157

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

2158

g_assert_true(epoll_set_contains(epoll_fd, added_read_task->fd,

2159

EPOLLIN | EPOLLRDHUP));

2160

}

2161

2162

static bool fd_has_cloexec_and_nonblock(const int fd){

2163

const int socket_fd_flags = fcntl(fd, F_GETFD, 0);

2164

const int socket_file_flags = fcntl(fd, F_GETFL, 0);

2165

return ((socket_fd_flags >= 0)

2166

and (socket_fd_flags & FD_CLOEXEC)

2167

and (socket_file_flags >= 0)

2168

and (socket_file_flags & O_NONBLOCK));

2169

}

2170

2171

__attribute__((const))

2172

bool is_privileged(void){

2173

uid_t user = getuid() + 1;

2174

if(user == 0){ /* Overflow check */

2175

user++;

2176

}

2177

gid_t group = getuid() + 1;

2178

if(group == 0){ /* Overflow check */

2179

group++;

2180

}

2181

const pid_t pid = fork();

2182

if(pid == 0){ /* Child */

2183

if(setresgid((uid_t)-1, group, group) == -1){

2184

if(errno != EPERM){

2185

error(EXIT_FAILURE, errno, "Failed to setresgid(-1, %" PRIuMAX

2186

", %" PRIuMAX")", (uintmax_t)group, (uintmax_t)group);

2187

}

2188

exit(EXIT_FAILURE);

2189

}

2190

if(setresuid((uid_t)-1, user, user) == -1){

2191

if(errno != EPERM){

2192

error(EXIT_FAILURE, errno, "Failed to setresuid(-1, %" PRIuMAX

2193

", %" PRIuMAX")", (uintmax_t)user, (uintmax_t)user);

2194

}

2195

exit(EXIT_FAILURE);

2196

}

2197

exit(EXIT_SUCCESS);

2198

}

2199

if(pid == -1){

2200

error(EXIT_FAILURE, errno, "Failed to fork()");

2201

}

2202

2203

int status;

2204

waitpid(pid, &status, 0);

2205

if(WIFEXITED(status) and (WEXITSTATUS(status) == EXIT_SUCCESS)){

2206

return true;

2207

}

2208

return false;

2209

}

2210

2211

static bool epoll_set_contains(int epoll_fd, int fd, uint32_t events){

2212

/* Only scan for events in this eventmask */

2213

const uint32_t eventmask = EPOLLIN | EPOLLOUT | EPOLLRDHUP;

2214

__attribute__((cleanup(cleanup_string)))

2215

char *fdinfo_name = NULL;

2216

int ret = asprintf(&fdinfo_name, "/proc/self/fdinfo/%d", epoll_fd);

2217

g_assert_cmpint(ret, >, 0);

2218

g_assert_nonnull(fdinfo_name);

2219

2220

FILE *fdinfo = fopen(fdinfo_name, "r");

2221

g_assert_nonnull(fdinfo);

2222

uint32_t reported_events;

2223

buffer line = {};

2224

int found_fd = -1;

2225

2226

do {

2227

if(getline(&line.data, &line.allocated, fdinfo) < 0){

2228

break;

2229

}

2230

/* See proc(5) for format of /proc/PID/fdinfo/FD for epoll fd's */

2231

if(sscanf(line.data, "tfd: %d events: %" SCNx32 " ",

2232

&found_fd, &reported_events) == 2){

2233

if(found_fd == fd){

2234

break;

2235

}

2236

}

2237

} while(not feof(fdinfo) and not ferror(fdinfo));

2238

g_assert_cmpint(fclose(fdinfo), ==, 0);

2239

free(line.data);

2240

if(found_fd != fd){

2241

return false;

2242

}

2243

2244

if(events == 0){

2245

/* Don't check events if none are given */

2246

return true;

2247

}

2248

return (reported_events & eventmask) == (events & eventmask);

2249

}

2250

2251

static void test_start_mandos_client_execv(test_fixture *fixture,

2252

__attribute__((unused))

2253

gconstpointer user_data){

2254

bool mandos_client_exited = false;

2255

bool quit_now = false;

2256

__attribute__((cleanup(cleanup_close)))

2257

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2258

g_assert_cmpint(epoll_fd, >=, 0);

2259

__attribute__((cleanup(cleanup_queue)))

2260

task_queue *queue = create_queue();

2261

g_assert_nonnull(queue);

2262

__attribute__((cleanup(cleanup_buffer)))

2263

buffer password = {};

2264

const char helper_directory[] = "/nonexistent";

2265

/* Can't execv("/", ...), so this should fail */

2266

const char *const argv[] = { "/", NULL };

2267

2268

{

2269

__attribute__((cleanup(cleanup_close)))

2270

const int devnull_fd = open("/dev/null",

2271

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2272

g_assert_cmpint(devnull_fd, >=, 0);

2273

__attribute__((cleanup(cleanup_close)))

2274

const int real_stderr_fd = dup(STDERR_FILENO);

2275

g_assert_cmpint(real_stderr_fd, >=, 0);

2276

dup2(devnull_fd, STDERR_FILENO);

2277

2278

const bool success = start_mandos_client(queue, epoll_fd,

2279

&mandos_client_exited,

2280

&quit_now,

2281

&password,

2282

(bool[]){false},

2283

&fixture->orig_sigaction,

2284

fixture->orig_sigmask,

2285

helper_directory, 0, 0,

2286

argv);

2287

dup2(real_stderr_fd, STDERR_FILENO);

2288

g_assert_true(success);

2289

}

2290

g_assert_cmpuint((unsigned int)queue->length, ==, 2);

2291

2292

struct timespec starttime, currtime;

2293

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2294

do {

2295

queue->next_run = 0;

2296

string_set cancelled_filenames = {};

2297

2298

{

2299

__attribute__((cleanup(cleanup_close)))

2300

const int devnull_fd = open("/dev/null",

2301

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2302

g_assert_cmpint(devnull_fd, >=, 0);

2303

__attribute__((cleanup(cleanup_close)))

2304

const int real_stderr_fd = dup(STDERR_FILENO);

2305

g_assert_cmpint(real_stderr_fd, >=, 0);

2306

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2307

dup2(devnull_fd, STDERR_FILENO);

2308

const bool success = run_queue(&queue, &cancelled_filenames,

2309

&quit_now);

2310

dup2(real_stderr_fd, STDERR_FILENO);

2311

if(not success){

2312

break;

2313

}

2314

}

2315

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2316

} while(((queue->length) > 0)

2317

and (not quit_now)

2318

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2319

2320

g_assert_true(quit_now);

2321

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2322

g_assert_true(mandos_client_exited);

2323

}

2324

2325

static void test_start_mandos_client_suid_euid(test_fixture *fixture,

2326

__attribute__((unused))

2327

gconstpointer

2328

user_data){

2329

if(not is_privileged()){

2330

g_test_skip("Not privileged");

2331

return;

2332

}

2333

2334

bool mandos_client_exited = false;

2335

bool quit_now = false;

2336

__attribute__((cleanup(cleanup_close)))

2337

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2338

g_assert_cmpint(epoll_fd, >=, 0);

2339

__attribute__((cleanup(cleanup_queue)))

2340

task_queue *queue = create_queue();

2341

g_assert_nonnull(queue);

2342

__attribute__((cleanup(cleanup_buffer)))

2343

buffer password = {};

2344

bool password_is_read = false;

2345

const char helper_directory[] = "/nonexistent";

2346

const char *const argv[] = { "/usr/bin/id", "--user", NULL };

2347

uid_t user = 1000;

2348

gid_t group = 1001;

2349

2350

const bool success = start_mandos_client(queue, epoll_fd,

2351

&mandos_client_exited,

2352

&quit_now, &password,

2353

&password_is_read,

2354

&fixture->orig_sigaction,

2355

fixture->orig_sigmask,

2356

helper_directory, user,

2357

group, argv);

2358

g_assert_true(success);

2359

g_assert_cmpuint((unsigned int)queue->length, >, 0);

2360

2361

struct timespec starttime, currtime;

2362

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2363

do {

2364

queue->next_run = 0;

2365

string_set cancelled_filenames = {};

2366

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2367

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2368

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2369

} while(((queue->length) > 0)

2370

and (not quit_now)

2371

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2372

2373

g_assert_false(quit_now);

2374

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2375

g_assert_true(mandos_client_exited);

2376

2377

g_assert_true(password_is_read);

2378

g_assert_nonnull(password.data);

2379

2380

uintmax_t id;

2381

g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),

2382

==, 1);

2383

g_assert_true((uid_t)id == id);

2384

2385

g_assert_cmpuint((unsigned int)id, ==, 0);

2386

}

2387

2388

static void test_start_mandos_client_suid_egid(test_fixture *fixture,

2389

__attribute__((unused))

2390

gconstpointer

2391

user_data){

2392

if(not is_privileged()){

2393

g_test_skip("Not privileged");

2394

return;

2395

}

2396

2397

bool mandos_client_exited = false;

2398

bool quit_now = false;

2399

__attribute__((cleanup(cleanup_close)))

2400

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2401

g_assert_cmpint(epoll_fd, >=, 0);

2402

__attribute__((cleanup(cleanup_queue)))

2403

task_queue *queue = create_queue();

2404

g_assert_nonnull(queue);

2405

__attribute__((cleanup(cleanup_buffer)))

2406

buffer password = {};

2407

bool password_is_read = false;

2408

const char helper_directory[] = "/nonexistent";

2409

const char *const argv[] = { "/usr/bin/id", "--group", NULL };

2410

uid_t user = 1000;

2411

gid_t group = 1001;

2412

2413

const bool success = start_mandos_client(queue, epoll_fd,

2414

&mandos_client_exited,

2415

&quit_now, &password,

2416

&password_is_read,

2417

&fixture->orig_sigaction,

2418

fixture->orig_sigmask,

2419

helper_directory, user,

2420

group, argv);

2421

g_assert_true(success);

2422

g_assert_cmpuint((unsigned int)queue->length, >, 0);

2423

2424

struct timespec starttime, currtime;

2425

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2426

do {

2427

queue->next_run = 0;

2428

string_set cancelled_filenames = {};

2429

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2430

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2431

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2432

} while(((queue->length) > 0)

2433

and (not quit_now)

2434

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2435

2436

g_assert_false(quit_now);

2437

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2438

g_assert_true(mandos_client_exited);

2439

2440

g_assert_true(password_is_read);

2441

g_assert_nonnull(password.data);

2442

2443

uintmax_t id;

2444

g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),

2445

==, 1);

2446

g_assert_true((gid_t)id == id);

2447

2448

g_assert_cmpuint((unsigned int)id, ==, 0);

2449

}

2450

2451

static void test_start_mandos_client_suid_ruid(test_fixture *fixture,

2452

__attribute__((unused))

2453

gconstpointer

2454

user_data){

2455

if(not is_privileged()){

2456

g_test_skip("Not privileged");

2457

return;

2458

}

2459

2460

bool mandos_client_exited = false;

2461

bool quit_now = false;

2462

__attribute__((cleanup(cleanup_close)))

2463

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2464

g_assert_cmpint(epoll_fd, >=, 0);

2465

__attribute__((cleanup(cleanup_queue)))

2466

task_queue *queue = create_queue();

2467

g_assert_nonnull(queue);

2468

__attribute__((cleanup(cleanup_buffer)))

2469

buffer password = {};

2470

bool password_is_read = false;

2471

const char helper_directory[] = "/nonexistent";

2472

const char *const argv[] = { "/usr/bin/id", "--user", "--real",

2473

NULL };

2474

uid_t user = 1000;

2475

gid_t group = 1001;

2476

2477

const bool success = start_mandos_client(queue, epoll_fd,

2478

&mandos_client_exited,

2479

&quit_now, &password,

2480

&password_is_read,

2481

&fixture->orig_sigaction,

2482

fixture->orig_sigmask,

2483

helper_directory, user,

2484

group, argv);

2485

g_assert_true(success);

2486

g_assert_cmpuint((unsigned int)queue->length, >, 0);

2487

2488

struct timespec starttime, currtime;

2489

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2490

do {

2491

queue->next_run = 0;

2492

string_set cancelled_filenames = {};

2493

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2494

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2495

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2496

} while(((queue->length) > 0)

2497

and (not quit_now)

2498

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2499

2500

g_assert_false(quit_now);

2501

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2502

g_assert_true(mandos_client_exited);

2503

2504

g_assert_true(password_is_read);

2505

g_assert_nonnull(password.data);

2506

2507

uintmax_t id;

2508

g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),

2509

==, 1);

2510

g_assert_true((uid_t)id == id);

2511

2512

g_assert_cmpuint((unsigned int)id, ==, user);

2513

}

2514

2515

static void test_start_mandos_client_suid_rgid(test_fixture *fixture,

2516

__attribute__((unused))

2517

gconstpointer

2518

user_data){

2519

if(not is_privileged()){

2520

g_test_skip("Not privileged");

2521

return;

2522

}

2523

2524

bool mandos_client_exited = false;

2525

bool quit_now = false;

2526

__attribute__((cleanup(cleanup_close)))

2527

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2528

g_assert_cmpint(epoll_fd, >=, 0);

2529

__attribute__((cleanup(cleanup_queue)))

2530

task_queue *queue = create_queue();

2531

g_assert_nonnull(queue);

2532

__attribute__((cleanup(cleanup_buffer)))

2533

buffer password = {};

2534

bool password_is_read = false;

2535

const char helper_directory[] = "/nonexistent";

2536

const char *const argv[] = { "/usr/bin/id", "--group", "--real",

2537

NULL };

2538

uid_t user = 1000;

2539

gid_t group = 1001;

2540

2541

const bool success = start_mandos_client(queue, epoll_fd,

2542

&mandos_client_exited,

2543

&quit_now, &password,

2544

&password_is_read,

2545

&fixture->orig_sigaction,

2546

fixture->orig_sigmask,

2547

helper_directory, user,

2548

group, argv);

2549

g_assert_true(success);

2550

g_assert_cmpuint((unsigned int)queue->length, >, 0);

2551

2552

struct timespec starttime, currtime;

2553

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2554

do {

2555

queue->next_run = 0;

2556

string_set cancelled_filenames = {};

2557

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2558

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2559

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2560

} while(((queue->length) > 0)

2561

and (not quit_now)

2562

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2563

2564

g_assert_false(quit_now);

2565

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2566

g_assert_true(mandos_client_exited);

2567

2568

g_assert_true(password_is_read);

2569

g_assert_nonnull(password.data);

2570

2571

uintmax_t id;

2572

g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),

2573

==, 1);

2574

g_assert_true((gid_t)id == id);

2575

2576

g_assert_cmpuint((unsigned int)id, ==, group);

2577

}

2578

2579

static void test_start_mandos_client_read(test_fixture *fixture,

2580

__attribute__((unused))

2581

gconstpointer user_data){

2582

bool mandos_client_exited = false;

2583

bool quit_now = false;

2584

__attribute__((cleanup(cleanup_close)))

2585

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2586

g_assert_cmpint(epoll_fd, >=, 0);

2587

__attribute__((cleanup(cleanup_queue)))

2588

task_queue *queue = create_queue();

2589

g_assert_nonnull(queue);

2590

__attribute__((cleanup(cleanup_buffer)))

2591

buffer password = {};

2592

bool password_is_read = false;

2593

const char dummy_test_password[] = "dummy test password";

2594

const char helper_directory[] = "/nonexistent";

2595

const char *const argv[] = { "/bin/echo", "-n", dummy_test_password,

2596

NULL };

2597

2598

const bool success = start_mandos_client(queue, epoll_fd,

2599

&mandos_client_exited,

2600

&quit_now, &password,

2601

&password_is_read,

2602

&fixture->orig_sigaction,

2603

fixture->orig_sigmask,

2604

helper_directory, 0, 0,

2605

argv);

2606

g_assert_true(success);

2607

g_assert_cmpuint((unsigned int)queue->length, >, 0);

2608

2609

struct timespec starttime, currtime;

2610

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2611

do {

2612

queue->next_run = 0;

2613

string_set cancelled_filenames = {};

2614

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2615

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2616

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2617

} while(((queue->length) > 0)

2618

and (not quit_now)

2619

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2620

2621

g_assert_false(quit_now);

2622

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2623

g_assert_true(mandos_client_exited);

2624

2625

g_assert_true(password_is_read);

2626

g_assert_cmpint((int)password.length, ==,

2627

sizeof(dummy_test_password)-1);

2628

g_assert_nonnull(password.data);

2629

g_assert_cmpint(memcmp(dummy_test_password, password.data,

2630

sizeof(dummy_test_password)-1), ==, 0);

2631

}

2632

2633

static

2634

void test_start_mandos_client_helper_directory(test_fixture *fixture,

2635

__attribute__((unused))

2636

gconstpointer

2637

user_data){

2638

bool mandos_client_exited = false;

2639

bool quit_now = false;

2640

__attribute__((cleanup(cleanup_close)))

2641

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2642

g_assert_cmpint(epoll_fd, >=, 0);

2643

__attribute__((cleanup(cleanup_queue)))

2644

task_queue *queue = create_queue();

2645

g_assert_nonnull(queue);

2646

__attribute__((cleanup(cleanup_buffer)))

2647

buffer password = {};

2648

bool password_is_read = false;

2649

const char helper_directory[] = "/nonexistent";

2650

const char *const argv[] = { "/bin/sh", "-c",

2651

"echo -n ${MANDOSPLUGINHELPERDIR}", NULL };

2652

2653

const bool success = start_mandos_client(queue, epoll_fd,

2654

&mandos_client_exited,

2655

&quit_now, &password,

2656

&password_is_read,

2657

&fixture->orig_sigaction,

2658

fixture->orig_sigmask,

2659

helper_directory, 0, 0,

2660

argv);

2661

g_assert_true(success);

2662

g_assert_cmpuint((unsigned int)queue->length, >, 0);

2663

2664

struct timespec starttime, currtime;

2665

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2666

do {

2667

queue->next_run = 0;

2668

string_set cancelled_filenames = {};

2669

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2670

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2671

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2672

} while(((queue->length) > 0)

2673

and (not quit_now)

2674

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2675

2676

g_assert_false(quit_now);

2677

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2678

g_assert_true(mandos_client_exited);

2679

2680

g_assert_true(password_is_read);

2681

g_assert_cmpint((int)password.length, ==,

2682

sizeof(helper_directory)-1);

2683

g_assert_nonnull(password.data);

2684

g_assert_cmpint(memcmp(helper_directory, password.data,

2685

sizeof(helper_directory)-1), ==, 0);

2686

}

2687

2688

__attribute__((nonnull, warn_unused_result))

2689

static bool proc_status_sigblk_to_sigset(const char *const,

2690

sigset_t *const);

2691

2692

static void test_start_mandos_client_sigmask(test_fixture *fixture,

2693

__attribute__((unused))

2694

gconstpointer user_data){

2695

bool mandos_client_exited = false;

2696

bool quit_now = false;

2697

__attribute__((cleanup(cleanup_close)))

2698

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2699

g_assert_cmpint(epoll_fd, >=, 0);

2700

__attribute__((cleanup(cleanup_queue)))

2701

task_queue *queue = create_queue();

2702

g_assert_nonnull(queue);

2703

__attribute__((cleanup(cleanup_buffer)))

2704

buffer password = {};

2705

bool password_is_read = false;

2706

const char helper_directory[] = "/nonexistent";

2707

/* see proc(5) for format of /proc/self/status */

2708

const char *const argv[] = { "/usr/bin/awk",

2709

"$1==\"SigBlk:\"{ print $2 }", "/proc/self/status", NULL };

2710

2711

g_assert_true(start_mandos_client(queue, epoll_fd,

2712

&mandos_client_exited, &quit_now,

2713

&password, &password_is_read,

2714

&fixture->orig_sigaction,

2715

fixture->orig_sigmask,

2716

helper_directory, 0, 0, argv));

2717

2718

struct timespec starttime, currtime;

2719

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2720

do {

2721

queue->next_run = 0;

2722

string_set cancelled_filenames = {};

2723

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2724

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2725

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2726

} while((not (mandos_client_exited and password_is_read))

2727

and (not quit_now)

2728

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2729

g_assert_true(mandos_client_exited);

2730

g_assert_true(password_is_read);

2731

2732

sigset_t parsed_sigmask;

2733

g_assert_true(proc_status_sigblk_to_sigset(password.data,

2734

&parsed_sigmask));

2735

2736

for(int signum = 1; signum < NSIG; signum++){

2737

const bool has_signal = sigismember(&parsed_sigmask, signum);

2738

if(sigismember(&fixture->orig_sigmask, signum)){

2739

g_assert_true(has_signal);

2740

} else {

2741

g_assert_false(has_signal);

2742

}

2743

}

2744

}

2745

2746

__attribute__((nonnull, warn_unused_result))

2747

static bool proc_status_sigblk_to_sigset(const char *const sigblk,

2748

sigset_t *const sigmask){

2749

/* parse /proc/PID/status SigBlk value and convert to a sigset_t */

2750

uintmax_t scanned_sigmask;

2751

if(sscanf(sigblk, "%" SCNxMAX " ", &scanned_sigmask) != 1){

2752

return false;

2753

}

2754

if(sigemptyset(sigmask) != 0){

2755

return false;

2756

}

2757

for(int signum = 1; signum < NSIG; signum++){

2758

if(scanned_sigmask & ((uintmax_t)1 << (signum-1))){

2759

if(sigaddset(sigmask, signum) != 0){

2760

return false;

2761

}

2762

}

2763

}

2764

return true;

2765

}

2766

2767

static void run_task_with_stderr_to_dev_null(const task_context task,

2768

task_queue *const queue);

2769

2770

static

2771

void test_wait_for_mandos_client_exit_badpid(__attribute__((unused))

2772

test_fixture *fixture,

2773

__attribute__((unused))

2774

gconstpointer user_data){

2775

2776

bool mandos_client_exited = false;

2777

bool quit_now = false;

2778

2779

__attribute__((cleanup(cleanup_queue)))

2780

task_queue *queue = create_queue();

2781

g_assert_nonnull(queue);

2782

const task_context task = {

2783

.func=wait_for_mandos_client_exit,

2784

.pid=1,

2785

.mandos_client_exited=&mandos_client_exited,

2786

.quit_now=&quit_now,

2787

};

2788

run_task_with_stderr_to_dev_null(task, queue);

2789

2790

g_assert_false(mandos_client_exited);

2791

g_assert_true(quit_now);

2792

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2793

}

2794

2795

static void run_task_with_stderr_to_dev_null(const task_context task,

2796

task_queue *const queue){

2797

FILE *real_stderr = stderr;

2798

FILE *devnull = fopen("/dev/null", "we");

2799

g_assert_nonnull(devnull);

2800

2801

stderr = devnull;

2802

task.func(task, queue);

2803

stderr = real_stderr;

2804

2805

g_assert_cmpint(fclose(devnull), ==, 0);

2806

}

2807

2808

static

2809

void test_wait_for_mandos_client_exit_noexit(test_fixture *fixture,

2810

__attribute__((unused))

2811

gconstpointer user_data){

2812

bool mandos_client_exited = false;

2813

bool quit_now = false;

2814

2815

pid_t create_eternal_process(void){

2816

const pid_t pid = fork();

2817

if(pid == 0){ /* Child */

2818

if(not restore_signal_handler(&fixture->orig_sigaction)){

2819

_exit(EXIT_FAILURE);

2820

}

2821

if(not restore_sigmask(&fixture->orig_sigmask)){

2822

_exit(EXIT_FAILURE);

2823

}

2824

while(true){

2825

pause();

2826

}

2827

}

2828

return pid;

2829

}

2830

pid_t pid = create_eternal_process();

2831

g_assert_true(pid != -1);

2832

2833

__attribute__((cleanup(cleanup_queue)))

2834

task_queue *queue = create_queue();

2835

g_assert_nonnull(queue);

2836

const task_context task = {

2837

.func=wait_for_mandos_client_exit,

2838

.pid=pid,

2839

.mandos_client_exited=&mandos_client_exited,

2840

.quit_now=&quit_now,

2841

};

2842

task.func(task, queue);

2843

2844

g_assert_false(mandos_client_exited);

2845

g_assert_false(quit_now);

2846

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

2847

2848

g_assert_nonnull(find_matching_task(queue, (task_context){

2849

.func=wait_for_mandos_client_exit,

2850

.pid=task.pid,

2851

.mandos_client_exited=&mandos_client_exited,

2852

.quit_now=&quit_now,

2853

}));

2854

}

2855

2856

static

2857

void test_wait_for_mandos_client_exit_success(test_fixture *fixture,

2858

__attribute__((unused))

2859

gconstpointer

2860

user_data){

2861

bool mandos_client_exited = false;

2862

bool quit_now = false;

2863

2864

pid_t create_successful_process(void){

2865

const pid_t pid = fork();

2866

if(pid == 0){ /* Child */

2867

if(not restore_signal_handler(&fixture->orig_sigaction)){

2868

_exit(EXIT_FAILURE);

2869

}

2870

if(not restore_sigmask(&fixture->orig_sigmask)){

2871

_exit(EXIT_FAILURE);

2872

}

2873

exit(EXIT_SUCCESS);

2874

}

2875

return pid;

2876

}

2877

const pid_t pid = create_successful_process();

2878

g_assert_true(pid != -1);

2879

2880

__attribute__((cleanup(cleanup_queue)))

2881

task_queue *queue = create_queue();

2882

g_assert_nonnull(queue);

2883

const task_context initial_task = {

2884

.func=wait_for_mandos_client_exit,

2885

.pid=pid,

2886

.mandos_client_exited=&mandos_client_exited,

2887

.quit_now=&quit_now,

2888

};

2889

g_assert_true(add_to_queue(queue, initial_task));

2890

2891

struct timespec starttime, currtime;

2892

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2893

__attribute__((cleanup(cleanup_close)))

2894

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2895

do {

2896

queue->next_run = 0;

2897

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2898

g_assert_true(run_queue(&queue, (string_set[]){{}}, &quit_now));

2899

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2900

} while((not mandos_client_exited)

2901

and (not quit_now)

2902

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2903

2904

g_assert_true(mandos_client_exited);

2905

g_assert_false(quit_now);

2906

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2907

}

2908

2909

static

2910

void test_wait_for_mandos_client_exit_failure(test_fixture *fixture,

2911

__attribute__((unused))

2912

gconstpointer

2913

user_data){

2914

bool mandos_client_exited = false;

2915

bool quit_now = false;

2916

2917

pid_t create_failing_process(void){

2918

const pid_t pid = fork();

2919

if(pid == 0){ /* Child */

2920

if(not restore_signal_handler(&fixture->orig_sigaction)){

2921

_exit(EXIT_FAILURE);

2922

}

2923

if(not restore_sigmask(&fixture->orig_sigmask)){

2924

_exit(EXIT_FAILURE);

2925

}

2926

exit(EXIT_FAILURE);

2927

}

2928

return pid;

2929

}

2930

const pid_t pid = create_failing_process();

2931

g_assert_true(pid != -1);

2932

2933

__attribute__((cleanup(string_set_clear)))

2934

string_set cancelled_filenames = {};

2935

__attribute__((cleanup(cleanup_close)))

2936

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2937

g_assert_cmpint(epoll_fd, >=, 0);

2938

__attribute__((cleanup(cleanup_queue)))

2939

task_queue *queue = create_queue();

2940

g_assert_nonnull(queue);

2941

g_assert_true(add_to_queue(queue, (task_context){

2942

.func=wait_for_mandos_client_exit,

2943

.pid=pid,

2944

.mandos_client_exited=&mandos_client_exited,

2945

.quit_now=&quit_now,

2946

}));

2947

2948

g_assert_true(sigismember(&fixture->orig_sigmask, SIGCHLD) == 0);

2949

2950

__attribute__((cleanup(cleanup_close)))

2951

const int devnull_fd = open("/dev/null",

2952

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2953

g_assert_cmpint(devnull_fd, >=, 0);

2954

__attribute__((cleanup(cleanup_close)))

2955

const int real_stderr_fd = dup(STDERR_FILENO);

2956

g_assert_cmpint(real_stderr_fd, >=, 0);

2957

2958

struct timespec starttime, currtime;

2959

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2960

do {

2961

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2962

dup2(devnull_fd, STDERR_FILENO);

2963

const bool success = run_queue(&queue, &cancelled_filenames,

2964

&quit_now);

2965

dup2(real_stderr_fd, STDERR_FILENO);

2966

if(not success){

2967

break;

2968

}

2969

2970

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2971

} while((not mandos_client_exited)

2972

and (not quit_now)

2973

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2974

2975

g_assert_true(quit_now);

2976

g_assert_true(mandos_client_exited);

2977

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2978

}

2979

2980

static

2981

void test_wait_for_mandos_client_exit_killed(test_fixture *fixture,

2982

__attribute__((unused))

2983

gconstpointer user_data){

2984

bool mandos_client_exited = false;

2985

bool quit_now = false;

2986

2987

pid_t create_killed_process(void){

2988

const pid_t pid = fork();

2989

if(pid == 0){ /* Child */

2990

if(not restore_signal_handler(&fixture->orig_sigaction)){

2991

_exit(EXIT_FAILURE);

2992

}

2993

if(not restore_sigmask(&fixture->orig_sigmask)){

2994

_exit(EXIT_FAILURE);

2995

}

2996

while(true){

2997

pause();

2998

}

2999

}

3000

kill(pid, SIGKILL);

3001

return pid;

3002

}

3003

const pid_t pid = create_killed_process();

3004

g_assert_true(pid != -1);

3005

3006

__attribute__((cleanup(string_set_clear)))

3007

string_set cancelled_filenames = {};

3008

__attribute__((cleanup(cleanup_close)))

3009

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3010

g_assert_cmpint(epoll_fd, >=, 0);

3011

__attribute__((cleanup(cleanup_queue)))

3012

task_queue *queue = create_queue();

3013

g_assert_nonnull(queue);

3014

g_assert_true(add_to_queue(queue, (task_context){

3015

.func=wait_for_mandos_client_exit,

3016

.pid=pid,

3017

.mandos_client_exited=&mandos_client_exited,

3018

.quit_now=&quit_now,

3019

}));

3020

3021

__attribute__((cleanup(cleanup_close)))

3022

const int devnull_fd = open("/dev/null",

3023

O_WRONLY | O_CLOEXEC, O_NOCTTY);

3024

g_assert_cmpint(devnull_fd, >=, 0);

3025

__attribute__((cleanup(cleanup_close)))

3026

const int real_stderr_fd = dup(STDERR_FILENO);

3027

g_assert_cmpint(real_stderr_fd, >=, 0);

3028

3029

struct timespec starttime, currtime;

3030

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

3031

do {

3032

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

3033

dup2(devnull_fd, STDERR_FILENO);

3034

const bool success = run_queue(&queue, &cancelled_filenames,

3035

&quit_now);

3036

dup2(real_stderr_fd, STDERR_FILENO);

3037

if(not success){

3038

break;

3039

}

3040

3041

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

3042

} while((not mandos_client_exited)

3043

and (not quit_now)

3044

and ((currtime.tv_sec - starttime.tv_sec) < 10));

3045

3046

g_assert_true(mandos_client_exited);

3047

g_assert_true(quit_now);

3048

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

3049

}

3050

3051

static bool epoll_set_does_not_contain(int, int);

3052

3053

static

3054

void test_read_mandos_client_output_readerror(__attribute__((unused))

3055

test_fixture *fixture,

3056

__attribute__((unused))

3057

gconstpointer

3058

user_data){

3059

__attribute__((cleanup(cleanup_close)))

3060

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3061

g_assert_cmpint(epoll_fd, >=, 0);

3062

3063

__attribute__((cleanup(cleanup_buffer)))

3064

buffer password = {};

3065

3066

/* Reading /proc/self/mem from offset 0 will always give EIO */

3067

const int fd = open("/proc/self/mem",

3068

O_RDONLY | O_CLOEXEC | O_NOCTTY);

3069

3070

bool password_is_read = false;

3071

bool quit_now = false;

3072

__attribute__((cleanup(cleanup_queue)))

3073

task_queue *queue = create_queue();

3074

g_assert_nonnull(queue);

3075

3076

task_context task = {

3077

.func=read_mandos_client_output,

3078

.epoll_fd=epoll_fd,

3079

.fd=fd,

3080

.password=&password,

3081

.password_is_read=&password_is_read,

3082

.quit_now=&quit_now,

3083

};

3084

run_task_with_stderr_to_dev_null(task, queue);

3085

g_assert_false(password_is_read);

3086

g_assert_cmpint((int)password.length, ==, 0);

3087

g_assert_true(quit_now);

3088

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

3089

3090

g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));

3091

3092

g_assert_cmpint(close(fd), ==, -1);

3093

}

3094

3095

static bool epoll_set_does_not_contain(int epoll_fd, int fd){

3096

return not epoll_set_contains(epoll_fd, fd, 0);

3097

}

3098

3099

static

3100

void test_read_mandos_client_output_nodata(__attribute__((unused))

3101

test_fixture *fixture,

3102

__attribute__((unused))

3103

gconstpointer user_data){

3104

__attribute__((cleanup(cleanup_close)))

3105

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3106

g_assert_cmpint(epoll_fd, >=, 0);

3107

3108

int pipefds[2];

3109

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

3110

3111

__attribute__((cleanup(cleanup_buffer)))

3112

buffer password = {};

3113

3114

bool password_is_read = false;

3115

bool quit_now = false;

3116

__attribute__((cleanup(cleanup_queue)))

3117

task_queue *queue = create_queue();

3118

g_assert_nonnull(queue);

3119

3120

task_context task = {

3121

.func=read_mandos_client_output,

3122

.epoll_fd=epoll_fd,

3123

.fd=pipefds[0],

3124

.password=&password,

3125

.password_is_read=&password_is_read,

3126

.quit_now=&quit_now,

3127

};

3128

task.func(task, queue);

3129

g_assert_false(password_is_read);

3130

g_assert_cmpint((int)password.length, ==, 0);

3131

g_assert_false(quit_now);

3132

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

3133

3134

g_assert_nonnull(find_matching_task(queue, (task_context){

3135

.func=read_mandos_client_output,

3136

.epoll_fd=epoll_fd,

3137

.fd=pipefds[0],

3138

.password=&password,

3139

.password_is_read=&password_is_read,

3140

.quit_now=&quit_now,

3141

}));

3142

3143

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3144

EPOLLIN | EPOLLRDHUP));

3145

3146

g_assert_cmpint(close(pipefds[1]), ==, 0);

3147

}

3148

3149

static void test_read_mandos_client_output_eof(__attribute__((unused))

3150

test_fixture *fixture,

3151

__attribute__((unused))

3152

gconstpointer

3153

user_data){

3154

__attribute__((cleanup(cleanup_close)))

3155

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3156

g_assert_cmpint(epoll_fd, >=, 0);

3157

3158

int pipefds[2];

3159

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

3160

g_assert_cmpint(close(pipefds[1]), ==, 0);

3161

3162

__attribute__((cleanup(cleanup_buffer)))

3163

buffer password = {};

3164

3165

bool password_is_read = false;

3166

bool quit_now = false;

3167

__attribute__((cleanup(cleanup_queue)))

3168

task_queue *queue = create_queue();

3169

g_assert_nonnull(queue);

3170

3171

task_context task = {

3172

.func=read_mandos_client_output,

3173

.epoll_fd=epoll_fd,

3174

.fd=pipefds[0],

3175

.password=&password,

3176

.password_is_read=&password_is_read,

3177

.quit_now=&quit_now,

3178

};

3179

task.func(task, queue);

3180

g_assert_true(password_is_read);

3181

g_assert_cmpint((int)password.length, ==, 0);

3182

g_assert_false(quit_now);

3183

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

3184

3185

g_assert_true(epoll_set_does_not_contain(epoll_fd, pipefds[0]));

3186

3187

g_assert_cmpint(close(pipefds[0]), ==, -1);

3188

}

3189

3190

static

3191

void test_read_mandos_client_output_once(__attribute__((unused))

3192

test_fixture *fixture,

3193

__attribute__((unused))

3194

gconstpointer user_data){

3195

__attribute__((cleanup(cleanup_close)))

3196

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3197

g_assert_cmpint(epoll_fd, >=, 0);

3198

3199

int pipefds[2];

3200

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

3201

3202

const char dummy_test_password[] = "dummy test password";

3203

/* Start with a pre-allocated buffer */

3204

__attribute__((cleanup(cleanup_buffer)))

3205

buffer password = {

3206

.data=malloc(sizeof(dummy_test_password)),

3207

.length=0,

3208

.allocated=sizeof(dummy_test_password),

3209

};

3210

g_assert_nonnull(password.data);

3211

if(mlock(password.data, password.allocated) != 0){

3212

g_assert_true(errno == EPERM or errno == ENOMEM);

3213

}

3214

3215

bool password_is_read = false;

3216

bool quit_now = false;

3217

__attribute__((cleanup(cleanup_queue)))

3218

task_queue *queue = create_queue();

3219

g_assert_nonnull(queue);

3220

3221

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3222

g_assert_cmpint((int)write(pipefds[1], dummy_test_password,

3223

sizeof(dummy_test_password)),

3224

==, (int)sizeof(dummy_test_password));

3225

3226

task_context task = {

3227

.func=read_mandos_client_output,

3228

.epoll_fd=epoll_fd,

3229

.fd=pipefds[0],

3230

.password=&password,

3231

.password_is_read=&password_is_read,

3232

.quit_now=&quit_now,

3233

};

3234

task.func(task, queue);

3235

3236

g_assert_false(password_is_read);

3237

g_assert_cmpint((int)password.length, ==,

3238

(int)sizeof(dummy_test_password));

3239

g_assert_nonnull(password.data);

3240

g_assert_cmpint(memcmp(password.data, dummy_test_password,

3241

sizeof(dummy_test_password)), ==, 0);

3242

3243

g_assert_false(quit_now);

3244

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

3245

3246

g_assert_nonnull(find_matching_task(queue, (task_context){

3247

.func=read_mandos_client_output,

3248

.epoll_fd=epoll_fd,

3249

.fd=pipefds[0],

3250

.password=&password,

3251

.password_is_read=&password_is_read,

3252

.quit_now=&quit_now,

3253

}));

3254

3255

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3256

EPOLLIN | EPOLLRDHUP));

3257

3258

g_assert_cmpint(close(pipefds[1]), ==, 0);

3259

}

3260

3261

static

3262

void test_read_mandos_client_output_malloc(__attribute__((unused))

3263

test_fixture *fixture,

3264

__attribute__((unused))

3265

gconstpointer user_data){

3266

__attribute__((cleanup(cleanup_close)))

3267

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3268

g_assert_cmpint(epoll_fd, >=, 0);

3269

3270

int pipefds[2];

3271

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

3272

3273

const char dummy_test_password[] = "dummy test password";

3274

/* Start with an empty buffer */

3275

__attribute__((cleanup(cleanup_buffer)))

3276

buffer password = {};

3277

3278

bool password_is_read = false;

3279

bool quit_now = false;

3280

__attribute__((cleanup(cleanup_queue)))

3281

task_queue *queue = create_queue();

3282

g_assert_nonnull(queue);

3283

3284

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3285

g_assert_cmpint((int)write(pipefds[1], dummy_test_password,

3286

sizeof(dummy_test_password)),

3287

==, (int)sizeof(dummy_test_password));

3288

3289

task_context task = {

3290

.func=read_mandos_client_output,

3291

.epoll_fd=epoll_fd,

3292

.fd=pipefds[0],

3293

.password=&password,

3294

.password_is_read=&password_is_read,

3295

.quit_now=&quit_now,

3296

};

3297

task.func(task, queue);

3298

3299

g_assert_false(password_is_read);

3300

g_assert_cmpint((int)password.length, ==,

3301

(int)sizeof(dummy_test_password));

3302

g_assert_nonnull(password.data);

3303

g_assert_cmpint(memcmp(password.data, dummy_test_password,

3304

sizeof(dummy_test_password)), ==, 0);

3305

3306

g_assert_false(quit_now);

3307

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

3308

3309

g_assert_nonnull(find_matching_task(queue, (task_context){

3310

.func=read_mandos_client_output,

3311

.epoll_fd=epoll_fd,

3312

.fd=pipefds[0],

3313

.password=&password,

3314

.password_is_read=&password_is_read,

3315

.quit_now=&quit_now,

3316

}));

3317

3318

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3319

EPOLLIN | EPOLLRDHUP));

3320

3321

g_assert_cmpint(close(pipefds[1]), ==, 0);

3322

}

3323

3324

static

3325

void test_read_mandos_client_output_append(__attribute__((unused))

3326

test_fixture *fixture,

3327

__attribute__((unused))

3328

gconstpointer user_data){

3329

__attribute__((cleanup(cleanup_close)))

3330

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3331

g_assert_cmpint(epoll_fd, >=, 0);

3332

3333

int pipefds[2];

3334

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

3335

3336

const char dummy_test_password[] = "dummy test password";

3337

__attribute__((cleanup(cleanup_buffer)))

3338

buffer password = {

3339

.data=malloc(PIPE_BUF),

3340

.length=PIPE_BUF,

3341

.allocated=PIPE_BUF,

3342

};

3343

g_assert_nonnull(password.data);

3344

if(mlock(password.data, password.allocated) != 0){

3345

g_assert_true(errno == EPERM or errno == ENOMEM);

3346

}

3347

3348

memset(password.data, 'x', PIPE_BUF);

3349

char password_expected[PIPE_BUF];

3350

memcpy(password_expected, password.data, PIPE_BUF);

3351

3352

bool password_is_read = false;

3353

bool quit_now = false;

3354

__attribute__((cleanup(cleanup_queue)))

3355

task_queue *queue = create_queue();

3356

g_assert_nonnull(queue);

3357

3358

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3359

g_assert_cmpint((int)write(pipefds[1], dummy_test_password,

3360

sizeof(dummy_test_password)),

3361

==, (int)sizeof(dummy_test_password));

3362

3363

task_context task = {

3364

.func=read_mandos_client_output,

3365

.epoll_fd=epoll_fd,

3366

.fd=pipefds[0],

3367

.password=&password,

3368

.password_is_read=&password_is_read,

3369

.quit_now=&quit_now,

3370

};

3371

task.func(task, queue);

3372

3373

g_assert_false(password_is_read);

3374

g_assert_cmpint((int)password.length, ==,

3375

PIPE_BUF + sizeof(dummy_test_password));

3376

g_assert_nonnull(password.data);

3377

g_assert_cmpint(memcmp(password_expected, password.data, PIPE_BUF),

3378

==, 0);

3379

g_assert_cmpint(memcmp(password.data + PIPE_BUF,

3380

dummy_test_password,

3381

sizeof(dummy_test_password)), ==, 0);

3382

g_assert_false(quit_now);

3383

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

3384

3385

g_assert_nonnull(find_matching_task(queue, (task_context){

3386

.func=read_mandos_client_output,

3387

.epoll_fd=epoll_fd,

3388

.fd=pipefds[0],

3389

.password=&password,

3390

.password_is_read=&password_is_read,

3391

.quit_now=&quit_now,

3392

}));

3393

3394

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3395

EPOLLIN | EPOLLRDHUP));

3396

}

3397

3398

static char *make_temporary_directory(void);

3399

3400

static void test_add_inotify_dir_watch(__attribute__((unused))

3401

test_fixture *fixture,

3402

__attribute__((unused))

3403

gconstpointer user_data){

3404

__attribute__((cleanup(cleanup_close)))

3405

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3406

g_assert_cmpint(epoll_fd, >=, 0);

3407

__attribute__((cleanup(cleanup_queue)))

3408

task_queue *queue = create_queue();

3409

g_assert_nonnull(queue);

3410

__attribute__((cleanup(string_set_clear)))

3411

string_set cancelled_filenames = {};

3412

const mono_microsecs current_time = 0;

3413

3414

bool quit_now = false;

3415

buffer password = {};

3416

bool mandos_client_exited = false;

3417

bool password_is_read = false;

3418

3419

__attribute__((cleanup(cleanup_string)))

3420

char *tempdir = make_temporary_directory();

3421

g_assert_nonnull(tempdir);

3422

3423

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3424

&password, tempdir,

3425

&cancelled_filenames,

3426

&current_time,

3427

&mandos_client_exited,

3428

&password_is_read));

3429

3430

g_assert_cmpuint((unsigned int)queue->length, >, 0);

3431

3432

const task_context *const added_read_task

3433

= find_matching_task(queue, (task_context){

3434

.func=read_inotify_event,

3435

.epoll_fd=epoll_fd,

3436

.quit_now=&quit_now,

3437

.password=&password,

3438

.filename=tempdir,

3439

.cancelled_filenames=&cancelled_filenames,

3440

.current_time=&current_time,

3441

.mandos_client_exited=&mandos_client_exited,

3442

.password_is_read=&password_is_read,

3443

});

3444

g_assert_nonnull(added_read_task);

3445

3446

g_assert_cmpint(added_read_task->fd, >, 2);

3447

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3448

g_assert_true(epoll_set_contains(added_read_task->epoll_fd,

3449

added_read_task->fd,

3450

EPOLLIN | EPOLLRDHUP));

3451

3452

g_assert_cmpint(rmdir(tempdir), ==, 0);

3453

}

3454

3455

static char *make_temporary_directory(void){

3456

char *name = strdup("/tmp/mandosXXXXXX");

3457

g_assert_nonnull(name);

3458

char *result = mkdtemp(name);

3459

if(result == NULL){

3460

free(name);

3461

}

3462

return result;

3463

}

3464

3465

static void test_add_inotify_dir_watch_fail(__attribute__((unused))

3466

test_fixture *fixture,

3467

__attribute__((unused))

3468

gconstpointer user_data){

3469

__attribute__((cleanup(cleanup_close)))

3470

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3471

g_assert_cmpint(epoll_fd, >=, 0);

3472

__attribute__((cleanup(cleanup_queue)))

3473

task_queue *queue = create_queue();

3474

g_assert_nonnull(queue);

3475

__attribute__((cleanup(string_set_clear)))

3476

string_set cancelled_filenames = {};

3477

const mono_microsecs current_time = 0;

3478

3479

bool quit_now = false;

3480

buffer password = {};

3481

bool mandos_client_exited = false;

3482

bool password_is_read = false;

3483

3484

const char nonexistent_dir[] = "/nonexistent";

3485

3486

FILE *real_stderr = stderr;

3487

FILE *devnull = fopen("/dev/null", "we");

3488

g_assert_nonnull(devnull);

3489

stderr = devnull;

3490

g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3491

&password, nonexistent_dir,

3492

&cancelled_filenames,

3493

&current_time,

3494

&mandos_client_exited,

3495

&password_is_read));

3496

stderr = real_stderr;

3497

g_assert_cmpint(fclose(devnull), ==, 0);

3498

3499

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

3500

}

3501

3502

static void test_add_inotify_dir_watch_nondir(__attribute__((unused))

3503

test_fixture *fixture,

3504

__attribute__((unused))

3505

gconstpointer

3506

user_data){

3507

__attribute__((cleanup(cleanup_close)))

3508

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3509

g_assert_cmpint(epoll_fd, >=, 0);

3510

__attribute__((cleanup(cleanup_queue)))

3511

task_queue *queue = create_queue();

3512

g_assert_nonnull(queue);

3513

__attribute__((cleanup(string_set_clear)))

3514

string_set cancelled_filenames = {};

3515

const mono_microsecs current_time = 0;

3516

3517

bool quit_now = false;

3518

buffer password = {};

3519

bool mandos_client_exited = false;

3520

bool password_is_read = false;

3521

3522

const char not_a_directory[] = "/dev/tty";

3523

3524

FILE *real_stderr = stderr;

3525

FILE *devnull = fopen("/dev/null", "we");

3526

g_assert_nonnull(devnull);

3527

stderr = devnull;

3528

g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3529

&password, not_a_directory,

3530

&cancelled_filenames,

3531

&current_time,

3532

&mandos_client_exited,

3533

&password_is_read));

3534

stderr = real_stderr;

3535

g_assert_cmpint(fclose(devnull), ==, 0);

3536

3537

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

3538

}

3539

3540

static void test_add_inotify_dir_watch_EAGAIN(__attribute__((unused))

3541

test_fixture *fixture,

3542

__attribute__((unused))

3543

gconstpointer

3544

user_data){

3545

__attribute__((cleanup(cleanup_close)))

3546

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3547

g_assert_cmpint(epoll_fd, >=, 0);

3548

__attribute__((cleanup(cleanup_queue)))

3549

task_queue *queue = create_queue();

3550

g_assert_nonnull(queue);

3551

__attribute__((cleanup(string_set_clear)))

3552

string_set cancelled_filenames = {};

3553

const mono_microsecs current_time = 0;

3554

3555

bool quit_now = false;

3556

buffer password = {};

3557

bool mandos_client_exited = false;

3558

bool password_is_read = false;

3559

3560

__attribute__((cleanup(cleanup_string)))

3561

char *tempdir = make_temporary_directory();

3562

g_assert_nonnull(tempdir);

3563

3564

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3565

&password, tempdir,

3566

&cancelled_filenames,

3567

&current_time,

3568

&mandos_client_exited,

3569

&password_is_read));

3570

3571

g_assert_cmpuint((unsigned int)queue->length, >, 0);

3572

3573

const task_context *const added_read_task

3574

= find_matching_task(queue,

3575

(task_context){ .func=read_inotify_event });

3576

g_assert_nonnull(added_read_task);

3577

3578

g_assert_cmpint(added_read_task->fd, >, 2);

3579

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3580

3581

/* "sufficient to read at least one event." - inotify(7) */

3582

const size_t ievent_size = (sizeof(struct inotify_event)

3583

+ NAME_MAX + 1);

3584

struct inotify_event *ievent = malloc(ievent_size);

3585

g_assert_nonnull(ievent);

3586

3587

g_assert_cmpint(read(added_read_task->fd, ievent, ievent_size), ==,

3588

-1);

3589

g_assert_cmpint(errno, ==, EAGAIN);

3590

3591

free(ievent);

3592

3593

g_assert_cmpint(rmdir(tempdir), ==, 0);

3594

}

3595

3596

static char *make_temporary_file_in_directory(const char

3597

*const dir);

3598

3599

static

3600

void test_add_inotify_dir_watch_IN_CLOSE_WRITE(__attribute__((unused))

3601

test_fixture *fixture,

3602

__attribute__((unused))

3603

gconstpointer

3604

user_data){

3605

__attribute__((cleanup(cleanup_close)))

3606

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3607

g_assert_cmpint(epoll_fd, >=, 0);

3608

__attribute__((cleanup(cleanup_queue)))

3609

task_queue *queue = create_queue();

3610

g_assert_nonnull(queue);

3611

__attribute__((cleanup(string_set_clear)))

3612

string_set cancelled_filenames = {};

3613

const mono_microsecs current_time = 0;

3614

3615

bool quit_now = false;

3616

buffer password = {};

3617

bool mandos_client_exited = false;

3618

bool password_is_read = false;

3619

3620

__attribute__((cleanup(cleanup_string)))

3621

char *tempdir = make_temporary_directory();

3622

g_assert_nonnull(tempdir);

3623

3624

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3625

&password, tempdir,

3626

&cancelled_filenames,

3627

&current_time,

3628

&mandos_client_exited,

3629

&password_is_read));

3630

3631

g_assert_cmpuint((unsigned int)queue->length, >, 0);

3632

3633

const task_context *const added_read_task

3634

= find_matching_task(queue,

3635

(task_context){ .func=read_inotify_event });

3636

g_assert_nonnull(added_read_task);

3637

3638

g_assert_cmpint(added_read_task->fd, >, 2);

3639

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3640

3641

__attribute__((cleanup(cleanup_string)))

3642

char *filename = make_temporary_file_in_directory(tempdir);

3643

g_assert_nonnull(filename);

3644

3645

/* "sufficient to read at least one event." - inotify(7) */

3646

const size_t ievent_size = (sizeof(struct inotify_event)

3647

+ NAME_MAX + 1);

3648

struct inotify_event *ievent = malloc(ievent_size);

3649

g_assert_nonnull(ievent);

3650

3651

ssize_t read_size = 0;

3652

read_size = read(added_read_task->fd, ievent, ievent_size);

3653

3654

g_assert_cmpint((int)read_size, >, 0);

3655

g_assert_true(ievent->mask & IN_CLOSE_WRITE);

3656

g_assert_cmpstr(ievent->name, ==, basename(filename));

3657

3658

free(ievent);

3659

3660

g_assert_cmpint(unlink(filename), ==, 0);

3661

g_assert_cmpint(rmdir(tempdir), ==, 0);

3662

}

3663

3664

static char *make_temporary_prefixed_file_in_directory(const char

3665

*const prefix,

3666

const char

3667

*const dir){

3668

char *filename = NULL;

3669

g_assert_cmpint(asprintf(&filename, "%s/%sXXXXXX", dir, prefix),

3670

>, 0);

3671

g_assert_nonnull(filename);

3672

const int fd = mkostemp(filename, O_CLOEXEC);

3673

g_assert_cmpint(fd, >=, 0);

3674

g_assert_cmpint(close(fd), ==, 0);

3675

return filename;

3676

}

3677

3678

static char *make_temporary_file_in_directory(const char

3679

*const dir){

3680

return make_temporary_prefixed_file_in_directory("temp", dir);

3681

}

3682

3683

static

3684

void test_add_inotify_dir_watch_IN_MOVED_TO(__attribute__((unused))

3685

test_fixture *fixture,

3686

__attribute__((unused))

3687

gconstpointer user_data){

3688

__attribute__((cleanup(cleanup_close)))

3689

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3690

g_assert_cmpint(epoll_fd, >=, 0);

3691

__attribute__((cleanup(cleanup_queue)))

3692

task_queue *queue = create_queue();

3693

g_assert_nonnull(queue);

3694

__attribute__((cleanup(string_set_clear)))

3695

string_set cancelled_filenames = {};

3696

const mono_microsecs current_time = 0;

3697

3698

bool quit_now = false;

3699

buffer password = {};

3700

bool mandos_client_exited = false;

3701

bool password_is_read = false;

3702

3703

__attribute__((cleanup(cleanup_string)))

3704

char *watchdir = make_temporary_directory();

3705

g_assert_nonnull(watchdir);

3706

3707

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3708

&password, watchdir,

3709

&cancelled_filenames,

3710

&current_time,

3711

&mandos_client_exited,

3712

&password_is_read));

3713

3714

g_assert_cmpuint((unsigned int)queue->length, >, 0);

3715

3716

const task_context *const added_read_task

3717

= find_matching_task(queue,

3718

(task_context){ .func=read_inotify_event });

3719

g_assert_nonnull(added_read_task);

3720

3721

g_assert_cmpint(added_read_task->fd, >, 2);

3722

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3723

3724

char *sourcedir = make_temporary_directory();

3725

g_assert_nonnull(sourcedir);

3726

3727

__attribute__((cleanup(cleanup_string)))

3728

char *filename = make_temporary_file_in_directory(sourcedir);

3729

g_assert_nonnull(filename);

3730

3731

__attribute__((cleanup(cleanup_string)))

3732

char *targetfilename = NULL;

3733

g_assert_cmpint(asprintf(&targetfilename, "%s/%s", watchdir,

3734

basename(filename)), >, 0);

3735

g_assert_nonnull(targetfilename);

3736

3737

g_assert_cmpint(rename(filename, targetfilename), ==, 0);

3738

g_assert_cmpint(rmdir(sourcedir), ==, 0);

3739

free(sourcedir);

3740

3741

/* "sufficient to read at least one event." - inotify(7) */

3742

const size_t ievent_size = (sizeof(struct inotify_event)

3743

+ NAME_MAX + 1);

3744

struct inotify_event *ievent = malloc(ievent_size);

3745

g_assert_nonnull(ievent);

3746

3747

ssize_t read_size = read(added_read_task->fd, ievent, ievent_size);

3748

3749

g_assert_cmpint((int)read_size, >, 0);

3750

g_assert_true(ievent->mask & IN_MOVED_TO);

3751

g_assert_cmpstr(ievent->name, ==, basename(targetfilename));

3752

3753

free(ievent);

3754

3755

g_assert_cmpint(unlink(targetfilename), ==, 0);

3756

g_assert_cmpint(rmdir(watchdir), ==, 0);

3757

}

3758

3759

static

3760

void test_add_inotify_dir_watch_IN_MOVED_FROM(__attribute__((unused))

3761

test_fixture *fixture,

3762

__attribute__((unused))

3763

gconstpointer

3764

user_data){

3765

__attribute__((cleanup(cleanup_close)))

3766

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3767

g_assert_cmpint(epoll_fd, >=, 0);

3768

__attribute__((cleanup(cleanup_queue)))

3769

task_queue *queue = create_queue();

3770

g_assert_nonnull(queue);

3771

__attribute__((cleanup(string_set_clear)))

3772

string_set cancelled_filenames = {};

3773

const mono_microsecs current_time = 0;

3774

3775

bool quit_now = false;

3776

buffer password = {};

3777

bool mandos_client_exited = false;

3778

bool password_is_read = false;

3779

3780

__attribute__((cleanup(cleanup_string)))

3781

char *tempdir = make_temporary_directory();

3782

g_assert_nonnull(tempdir);

3783

3784

__attribute__((cleanup(cleanup_string)))

3785

char *tempfilename = make_temporary_file_in_directory(tempdir);

3786

g_assert_nonnull(tempfilename);

3787

3788

__attribute__((cleanup(cleanup_string)))

3789

char *targetdir = make_temporary_directory();

3790

g_assert_nonnull(targetdir);

3791

3792

__attribute__((cleanup(cleanup_string)))

3793

char *targetfilename = NULL;

3794

g_assert_cmpint(asprintf(&targetfilename, "%s/%s", targetdir,

3795

basename(tempfilename)), >, 0);

3796

g_assert_nonnull(targetfilename);

3797

3798

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3799

&password, tempdir,

3800

&cancelled_filenames,

3801

&current_time,

3802

&mandos_client_exited,

3803

&password_is_read));

3804

3805

g_assert_cmpint(rename(tempfilename, targetfilename), ==, 0);

3806

3807

const task_context *const added_read_task

3808

= find_matching_task(queue,

3809

(task_context){ .func=read_inotify_event });

3810

g_assert_nonnull(added_read_task);

3811

3812

/* "sufficient to read at least one event." - inotify(7) */

3813

const size_t ievent_size = (sizeof(struct inotify_event)

3814

+ NAME_MAX + 1);

3815

struct inotify_event *ievent = malloc(ievent_size);

3816

g_assert_nonnull(ievent);

3817

3818

ssize_t read_size = read(added_read_task->fd, ievent, ievent_size);

3819

3820

g_assert_cmpint((int)read_size, >, 0);

3821

g_assert_true(ievent->mask & IN_MOVED_FROM);

3822

g_assert_cmpstr(ievent->name, ==, basename(tempfilename));

3823

3824

free(ievent);

3825

3826

g_assert_cmpint(unlink(targetfilename), ==, 0);

3827

g_assert_cmpint(rmdir(targetdir), ==, 0);

3828

g_assert_cmpint(rmdir(tempdir), ==, 0);

3829

}

3830

3831

static

3832

void test_add_inotify_dir_watch_IN_DELETE(__attribute__((unused))

3833

test_fixture *fixture,

3834

__attribute__((unused))

3835

gconstpointer user_data){

3836

__attribute__((cleanup(cleanup_close)))

3837

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3838

g_assert_cmpint(epoll_fd, >=, 0);

3839

__attribute__((cleanup(cleanup_queue)))

3840

task_queue *queue = create_queue();

3841

g_assert_nonnull(queue);

3842

__attribute__((cleanup(string_set_clear)))

3843

string_set cancelled_filenames = {};

3844

const mono_microsecs current_time = 0;

3845

3846

bool quit_now = false;

3847

buffer password = {};

3848

bool mandos_client_exited = false;

3849

bool password_is_read = false;

3850

3851

__attribute__((cleanup(cleanup_string)))

3852

char *tempdir = make_temporary_directory();

3853

g_assert_nonnull(tempdir);

3854

3855

__attribute__((cleanup(cleanup_string)))

3856

char *tempfile = make_temporary_file_in_directory(tempdir);

3857

g_assert_nonnull(tempfile);

3858

3859

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3860

&password, tempdir,

3861

&cancelled_filenames,

3862

&current_time,

3863

&mandos_client_exited,

3864

&password_is_read));

3865

g_assert_cmpint(unlink(tempfile), ==, 0);

3866

3867

g_assert_cmpuint((unsigned int)queue->length, >, 0);

3868

3869

const task_context *const added_read_task

3870

= find_matching_task(queue,

3871

(task_context){ .func=read_inotify_event });

3872

g_assert_nonnull(added_read_task);

3873

3874

g_assert_cmpint(added_read_task->fd, >, 2);

3875

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3876

3877

/* "sufficient to read at least one event." - inotify(7) */

3878

const size_t ievent_size = (sizeof(struct inotify_event)

3879

+ NAME_MAX + 1);

3880

struct inotify_event *ievent = malloc(ievent_size);

3881

g_assert_nonnull(ievent);

3882

3883

ssize_t read_size = 0;

3884

read_size = read(added_read_task->fd, ievent, ievent_size);

3885

3886

g_assert_cmpint((int)read_size, >, 0);

3887

g_assert_true(ievent->mask & IN_DELETE);

3888

g_assert_cmpstr(ievent->name, ==, basename(tempfile));

3889

3890

free(ievent);

3891

3892

g_assert_cmpint(rmdir(tempdir), ==, 0);

3893

}

3894

3895

static

3896

void test_add_inotify_dir_watch_IN_EXCL_UNLINK(__attribute__((unused))

3897

test_fixture *fixture,

3898

__attribute__((unused))

3899

gconstpointer

3900

user_data){

3901

__attribute__((cleanup(cleanup_close)))

3902

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3903

g_assert_cmpint(epoll_fd, >=, 0);

3904

__attribute__((cleanup(cleanup_queue)))

3905

task_queue *queue = create_queue();

3906

g_assert_nonnull(queue);

3907

__attribute__((cleanup(string_set_clear)))

3908

string_set cancelled_filenames = {};

3909

const mono_microsecs current_time = 0;

3910

3911

bool quit_now = false;

3912

buffer password = {};

3913

bool mandos_client_exited = false;

3914

bool password_is_read = false;

3915

3916

__attribute__((cleanup(cleanup_string)))

3917

char *tempdir = make_temporary_directory();

3918

g_assert_nonnull(tempdir);

3919

3920

__attribute__((cleanup(cleanup_string)))

3921

char *tempfile = make_temporary_file_in_directory(tempdir);

3922

g_assert_nonnull(tempfile);

3923

int tempfile_fd = open(tempfile, O_WRONLY | O_CLOEXEC | O_NOCTTY

3924

| O_NOFOLLOW);

3925

g_assert_cmpint(tempfile_fd, >, 2);

3926

3927

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3928

&password, tempdir,

3929

&cancelled_filenames,

3930

&current_time,

3931

&mandos_client_exited,

3932

&password_is_read));

3933

g_assert_cmpint(unlink(tempfile), ==, 0);

3934

3935

g_assert_cmpuint((unsigned int)queue->length, >, 0);

3936

3937

const task_context *const added_read_task

3938

= find_matching_task(queue,

3939

(task_context){ .func=read_inotify_event });

3940

g_assert_nonnull(added_read_task);

3941

3942

g_assert_cmpint(added_read_task->fd, >, 2);

3943

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3944

3945

/* "sufficient to read at least one event." - inotify(7) */

3946

const size_t ievent_size = (sizeof(struct inotify_event)

3947

+ NAME_MAX + 1);

3948

struct inotify_event *ievent = malloc(ievent_size);

3949

g_assert_nonnull(ievent);

3950

3951

ssize_t read_size = 0;

3952

read_size = read(added_read_task->fd, ievent, ievent_size);

3953

3954

g_assert_cmpint((int)read_size, >, 0);

3955

g_assert_true(ievent->mask & IN_DELETE);

3956

g_assert_cmpstr(ievent->name, ==, basename(tempfile));

3957

3958

g_assert_cmpint(close(tempfile_fd), ==, 0);

3959

3960

/* IN_EXCL_UNLINK should make the closing of the previously unlinked

3961

file not appear as an ievent, so we should not see it now. */

3962

read_size = read(added_read_task->fd, ievent, ievent_size);

3963

g_assert_cmpint((int)read_size, ==, -1);

3964

g_assert_true(errno == EAGAIN);

3965

3966

free(ievent);

3967

3968

g_assert_cmpint(rmdir(tempdir), ==, 0);

3969

}

3970

3971

static void test_read_inotify_event_readerror(__attribute__((unused))

3972

test_fixture *fixture,

3973

__attribute__((unused))

3974

gconstpointer

3975

user_data){

3976

__attribute__((cleanup(cleanup_close)))

3977

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3978

g_assert_cmpint(epoll_fd, >=, 0);

3979

const mono_microsecs current_time = 0;

3980

3981

/* Reading /proc/self/mem from offset 0 will always result in EIO */

3982

const int fd = open("/proc/self/mem",

3983

O_RDONLY | O_CLOEXEC | O_NOCTTY);

3984

3985

bool quit_now = false;

3986

__attribute__((cleanup(cleanup_queue)))

3987

task_queue *queue = create_queue();

3988

g_assert_nonnull(queue);

3989

3990

task_context task = {

3991

.func=read_inotify_event,

3992

.epoll_fd=epoll_fd,

3993

.fd=fd,

3994

.quit_now=&quit_now,

3995

.filename=strdup("/nonexistent"),

3996

.cancelled_filenames = &(string_set){},

3997

.notafter=0,

3998

.current_time=&current_time,

3999

};

4000

g_assert_nonnull(task.filename);

4001

run_task_with_stderr_to_dev_null(task, queue);

4002

g_assert_true(quit_now);

4003

g_assert_true(queue->next_run == 0);

4004

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

4005

4006

g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));

4007

4008

g_assert_cmpint(close(fd), ==, -1);

4009

}

4010

4011

static void test_read_inotify_event_bad_epoll(__attribute__((unused))

4012

test_fixture *fixture,

4013

__attribute__((unused))

4014

gconstpointer

4015

user_data){

4016

const mono_microsecs current_time = 17;

4017

4018

int pipefds[2];

4019

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4020

const int epoll_fd = pipefds[0]; /* This will obviously fail */

4021

4022

bool quit_now = false;

4023

buffer password = {};

4024

bool mandos_client_exited = false;

4025

bool password_is_read = false;

4026

__attribute__((cleanup(cleanup_queue)))

4027

task_queue *queue = create_queue();

4028

g_assert_nonnull(queue);

4029

4030

task_context task = {

4031

.func=read_inotify_event,

4032

.epoll_fd=epoll_fd,

4033

.fd=pipefds[0],

4034

.quit_now=&quit_now,

4035

.password=&password,

4036

.filename=strdup("/nonexistent"),

4037

.cancelled_filenames = &(string_set){},

4038

.notafter=0,

4039

.current_time=&current_time,

4040

.mandos_client_exited=&mandos_client_exited,

4041

.password_is_read=&password_is_read,

4042

};

4043

g_assert_nonnull(task.filename);

4044

run_task_with_stderr_to_dev_null(task, queue);

4045

4046

g_assert_nonnull(find_matching_task(queue, task));

4047

g_assert_true(queue->next_run == 1000000 + current_time);

4048

4049

g_assert_cmpint(close(pipefds[0]), ==, 0);

4050

g_assert_cmpint(close(pipefds[1]), ==, 0);

4051

}

4052

4053

static void test_read_inotify_event_nodata(__attribute__((unused))

4054

test_fixture *fixture,

4055

__attribute__((unused))

4056

gconstpointer user_data){

4057

__attribute__((cleanup(cleanup_close)))

4058

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4059

g_assert_cmpint(epoll_fd, >=, 0);

4060

const mono_microsecs current_time = 0;

4061

4062

int pipefds[2];

4063

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4064

4065

bool quit_now = false;

4066

buffer password = {};

4067

bool mandos_client_exited = false;

4068

bool password_is_read = false;

4069

__attribute__((cleanup(cleanup_queue)))

4070

task_queue *queue = create_queue();

4071

g_assert_nonnull(queue);

4072

4073

task_context task = {

4074

.func=read_inotify_event,

4075

.epoll_fd=epoll_fd,

4076

.fd=pipefds[0],

4077

.quit_now=&quit_now,

4078

.password=&password,

4079

.filename=strdup("/nonexistent"),

4080

.cancelled_filenames = &(string_set){},

4081

.notafter=0,

4082

.current_time=&current_time,

4083

.mandos_client_exited=&mandos_client_exited,

4084

.password_is_read=&password_is_read,

4085

};

4086

g_assert_nonnull(task.filename);

4087

task.func(task, queue);

4088

g_assert_false(quit_now);

4089

g_assert_true(queue->next_run == 0);

4090

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4091

4092

g_assert_nonnull(find_matching_task(queue, (task_context){

4093

.func=read_inotify_event,

4094

.epoll_fd=epoll_fd,

4095

.fd=pipefds[0],

4096

.quit_now=&quit_now,

4097

.password=&password,

4098

.filename=task.filename,

4099

.cancelled_filenames=task.cancelled_filenames,

4100

.current_time=&current_time,

4101

.mandos_client_exited=&mandos_client_exited,

4102

.password_is_read=&password_is_read,

4103

}));

4104

4105

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4106

EPOLLIN | EPOLLRDHUP));

4107

4108

g_assert_cmpint(close(pipefds[1]), ==, 0);

4109

}

4110

4111

static void test_read_inotify_event_eof(__attribute__((unused))

4112

test_fixture *fixture,

4113

__attribute__((unused))

4114

gconstpointer user_data){

4115

__attribute__((cleanup(cleanup_close)))

4116

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4117

g_assert_cmpint(epoll_fd, >=, 0);

4118

const mono_microsecs current_time = 0;

4119

4120

int pipefds[2];

4121

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4122

g_assert_cmpint(close(pipefds[1]), ==, 0);

4123

4124

bool quit_now = false;

4125

buffer password = {};

4126

__attribute__((cleanup(cleanup_queue)))

4127

task_queue *queue = create_queue();

4128

g_assert_nonnull(queue);

4129

4130

task_context task = {

4131

.func=read_inotify_event,

4132

.epoll_fd=epoll_fd,

4133

.fd=pipefds[0],

4134

.quit_now=&quit_now,

4135

.password=&password,

4136

.filename=strdup("/nonexistent"),

4137

.cancelled_filenames = &(string_set){},

4138

.notafter=0,

4139

.current_time=&current_time,

4140

};

4141

run_task_with_stderr_to_dev_null(task, queue);

4142

g_assert_true(quit_now);

4143

g_assert_true(queue->next_run == 0);

4144

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

4145

4146

g_assert_true(epoll_set_does_not_contain(epoll_fd, pipefds[0]));

4147

4148

g_assert_cmpint(close(pipefds[0]), ==, -1);

4149

}

4150

4151

static

4152

void test_read_inotify_event_IN_CLOSE_WRITE(__attribute__((unused))

4153

test_fixture *fixture,

4154

__attribute__((unused))

4155

gconstpointer user_data){

4156

__attribute__((cleanup(cleanup_close)))

4157

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4158

g_assert_cmpint(epoll_fd, >=, 0);

4159

const mono_microsecs current_time = 0;

4160

4161

int pipefds[2];

4162

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4163

4164

/* "sufficient to read at least one event." - inotify(7) */

4165

const size_t ievent_max_size = (sizeof(struct inotify_event)

4166

+ NAME_MAX + 1);

4167

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4168

struct {

4169

struct inotify_event event;

4170

char name_buffer[NAME_MAX + 1];

4171

} ievent_buffer;

4172

struct inotify_event *const ievent = &ievent_buffer.event;

4173

4174

const char dummy_file_name[] = "ask.dummy_file_name";

4175

ievent->mask = IN_CLOSE_WRITE;

4176

ievent->len = sizeof(dummy_file_name);

4177

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4178

const size_t ievent_size = (sizeof(struct inotify_event)

4179

+ sizeof(dummy_file_name));

4180

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4181

==, ievent_size);

4182

g_assert_cmpint(close(pipefds[1]), ==, 0);

4183

4184

bool quit_now = false;

4185

buffer password = {};

4186

bool mandos_client_exited = false;

4187

bool password_is_read = false;

4188

__attribute__((cleanup(cleanup_queue)))

4189

task_queue *queue = create_queue();

4190

g_assert_nonnull(queue);

4191

4192

task_context task = {

4193

.func=read_inotify_event,

4194

.epoll_fd=epoll_fd,

4195

.fd=pipefds[0],

4196

.quit_now=&quit_now,

4197

.password=&password,

4198

.filename=strdup("/nonexistent"),

4199

.cancelled_filenames = &(string_set){},

4200

.notafter=0,

4201

.current_time=&current_time,

4202

.mandos_client_exited=&mandos_client_exited,

4203

.password_is_read=&password_is_read,

4204

};

4205

task.func(task, queue);

4206

g_assert_false(quit_now);

4207

g_assert_true(queue->next_run != 0);

4208

g_assert_cmpuint((unsigned int)queue->length, >=, 1);

4209

4210

g_assert_nonnull(find_matching_task(queue, (task_context){

4211

.func=read_inotify_event,

4212

.epoll_fd=epoll_fd,

4213

.fd=pipefds[0],

4214

.quit_now=&quit_now,

4215

.password=&password,

4216

.filename=task.filename,

4217

.cancelled_filenames=task.cancelled_filenames,

4218

.current_time=&current_time,

4219

.mandos_client_exited=&mandos_client_exited,

4220

.password_is_read=&password_is_read,

4221

}));

4222

4223

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4224

EPOLLIN | EPOLLRDHUP));

4225

4226

g_assert_cmpuint((unsigned int)queue->length, >=, 2);

4227

4228

__attribute__((cleanup(cleanup_string)))

4229

char *filename = NULL;

4230

g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,

4231

dummy_file_name), >, 0);

4232

g_assert_nonnull(filename);

4233

g_assert_nonnull(find_matching_task(queue, (task_context){

4234

.func=open_and_parse_question,

4235

.epoll_fd=epoll_fd,

4236

.filename=filename,

4237

.question_filename=filename,

4238

.password=&password,

4239

.cancelled_filenames=task.cancelled_filenames,

4240

.current_time=&current_time,

4241

.mandos_client_exited=&mandos_client_exited,

4242

.password_is_read=&password_is_read,

4243

}));

4244

}

4245

4246

static

4247

void test_read_inotify_event_IN_MOVED_TO(__attribute__((unused))

4248

test_fixture *fixture,

4249

__attribute__((unused))

4250

gconstpointer user_data){

4251

__attribute__((cleanup(cleanup_close)))

4252

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4253

g_assert_cmpint(epoll_fd, >=, 0);

4254

const mono_microsecs current_time = 0;

4255

4256

int pipefds[2];

4257

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4258

4259

/* "sufficient to read at least one event." - inotify(7) */

4260

const size_t ievent_max_size = (sizeof(struct inotify_event)

4261

+ NAME_MAX + 1);

4262

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4263

struct {

4264

struct inotify_event event;

4265

char name_buffer[NAME_MAX + 1];

4266

} ievent_buffer;

4267

struct inotify_event *const ievent = &ievent_buffer.event;

4268

4269

const char dummy_file_name[] = "ask.dummy_file_name";

4270

ievent->mask = IN_MOVED_TO;

4271

ievent->len = sizeof(dummy_file_name);

4272

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4273

const size_t ievent_size = (sizeof(struct inotify_event)

4274

+ sizeof(dummy_file_name));

4275

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4276

==, ievent_size);

4277

g_assert_cmpint(close(pipefds[1]), ==, 0);

4278

4279

bool quit_now = false;

4280

buffer password = {};

4281

bool mandos_client_exited = false;

4282

bool password_is_read = false;

4283

__attribute__((cleanup(cleanup_queue)))

4284

task_queue *queue = create_queue();

4285

g_assert_nonnull(queue);

4286

4287

task_context task = {

4288

.func=read_inotify_event,

4289

.epoll_fd=epoll_fd,

4290

.fd=pipefds[0],

4291

.quit_now=&quit_now,

4292

.password=&password,

4293

.filename=strdup("/nonexistent"),

4294

.cancelled_filenames = &(string_set){},

4295

.notafter=0,

4296

.current_time=&current_time,

4297

.mandos_client_exited=&mandos_client_exited,

4298

.password_is_read=&password_is_read,

4299

};

4300

task.func(task, queue);

4301

g_assert_false(quit_now);

4302

g_assert_true(queue->next_run != 0);

4303

g_assert_cmpuint((unsigned int)queue->length, >=, 1);

4304

4305

g_assert_nonnull(find_matching_task(queue, (task_context){

4306

.func=read_inotify_event,

4307

.epoll_fd=epoll_fd,

4308

.fd=pipefds[0],

4309

.quit_now=&quit_now,

4310

.password=&password,

4311

.filename=task.filename,

4312

.cancelled_filenames=task.cancelled_filenames,

4313

.current_time=&current_time,

4314

.mandos_client_exited=&mandos_client_exited,

4315

.password_is_read=&password_is_read,

4316

}));

4317

4318

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4319

EPOLLIN | EPOLLRDHUP));

4320

4321

g_assert_cmpuint((unsigned int)queue->length, >=, 2);

4322

4323

__attribute__((cleanup(cleanup_string)))

4324

char *filename = NULL;

4325

g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,

4326

dummy_file_name), >, 0);

4327

g_assert_nonnull(filename);

4328

g_assert_nonnull(find_matching_task(queue, (task_context){

4329

.func=open_and_parse_question,

4330

.epoll_fd=epoll_fd,

4331

.filename=filename,

4332

.question_filename=filename,

4333

.password=&password,

4334

.cancelled_filenames=task.cancelled_filenames,

4335

.current_time=&current_time,

4336

.mandos_client_exited=&mandos_client_exited,

4337

.password_is_read=&password_is_read,

4338

}));

4339

}

4340

4341

static

4342

void test_read_inotify_event_IN_MOVED_FROM(__attribute__((unused))

4343

test_fixture *fixture,

4344

__attribute__((unused))

4345

gconstpointer user_data){

4346

__attribute__((cleanup(cleanup_close)))

4347

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4348

g_assert_cmpint(epoll_fd, >=, 0);

4349

__attribute__((cleanup(string_set_clear)))

4350

string_set cancelled_filenames = {};

4351

const mono_microsecs current_time = 0;

4352

4353

int pipefds[2];

4354

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4355

4356

/* "sufficient to read at least one event." - inotify(7) */

4357

const size_t ievent_max_size = (sizeof(struct inotify_event)

4358

+ NAME_MAX + 1);

4359

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4360

struct {

4361

struct inotify_event event;

4362

char name_buffer[NAME_MAX + 1];

4363

} ievent_buffer;

4364

struct inotify_event *const ievent = &ievent_buffer.event;

4365

4366

const char dummy_file_name[] = "ask.dummy_file_name";

4367

ievent->mask = IN_MOVED_FROM;

4368

ievent->len = sizeof(dummy_file_name);

4369

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4370

const size_t ievent_size = (sizeof(struct inotify_event)

4371

+ sizeof(dummy_file_name));

4372

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4373

==, ievent_size);

4374

g_assert_cmpint(close(pipefds[1]), ==, 0);

4375

4376

bool quit_now = false;

4377

buffer password = {};

4378

bool mandos_client_exited = false;

4379

bool password_is_read = false;

4380

__attribute__((cleanup(cleanup_queue)))

4381

task_queue *queue = create_queue();

4382

g_assert_nonnull(queue);

4383

4384

task_context task = {

4385

.func=read_inotify_event,

4386

.epoll_fd=epoll_fd,

4387

.fd=pipefds[0],

4388

.quit_now=&quit_now,

4389

.password=&password,

4390

.filename=strdup("/nonexistent"),

4391

.cancelled_filenames=&cancelled_filenames,

4392

.current_time=&current_time,

4393

.mandos_client_exited=&mandos_client_exited,

4394

.password_is_read=&password_is_read,

4395

};

4396

task.func(task, queue);

4397

g_assert_false(quit_now);

4398

g_assert_true(queue->next_run == 0);

4399

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4400

4401

g_assert_nonnull(find_matching_task(queue, (task_context){

4402

.func=read_inotify_event,

4403

.epoll_fd=epoll_fd,

4404

.fd=pipefds[0],

4405

.quit_now=&quit_now,

4406

.password=&password,

4407

.filename=task.filename,

4408

.cancelled_filenames=&cancelled_filenames,

4409

.current_time=&current_time,

4410

.mandos_client_exited=&mandos_client_exited,

4411

.password_is_read=&password_is_read,

4412

}));

4413

4414

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4415

EPOLLIN | EPOLLRDHUP));

4416

4417

__attribute__((cleanup(cleanup_string)))

4418

char *filename = NULL;

4419

g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,

4420

dummy_file_name), >, 0);

4421

g_assert_nonnull(filename);

4422

g_assert_true(string_set_contains(*task.cancelled_filenames,

4423

filename));

4424

}

4425

4426

static void test_read_inotify_event_IN_DELETE(__attribute__((unused))

4427

test_fixture *fixture,

4428

__attribute__((unused))

4429

gconstpointer

4430

user_data){

4431

__attribute__((cleanup(cleanup_close)))

4432

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4433

g_assert_cmpint(epoll_fd, >=, 0);

4434

__attribute__((cleanup(string_set_clear)))

4435

string_set cancelled_filenames = {};

4436

const mono_microsecs current_time = 0;

4437

4438

int pipefds[2];

4439

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4440

4441

/* "sufficient to read at least one event." - inotify(7) */

4442

const size_t ievent_max_size = (sizeof(struct inotify_event)

4443

+ NAME_MAX + 1);

4444

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4445

struct {

4446

struct inotify_event event;

4447

char name_buffer[NAME_MAX + 1];

4448

} ievent_buffer;

4449

struct inotify_event *const ievent = &ievent_buffer.event;

4450

4451

const char dummy_file_name[] = "ask.dummy_file_name";

4452

ievent->mask = IN_DELETE;

4453

ievent->len = sizeof(dummy_file_name);

4454

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4455

const size_t ievent_size = (sizeof(struct inotify_event)

4456

+ sizeof(dummy_file_name));

4457

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4458

==, ievent_size);

4459

g_assert_cmpint(close(pipefds[1]), ==, 0);

4460

4461

bool quit_now = false;

4462

buffer password = {};

4463

bool mandos_client_exited = false;

4464

bool password_is_read = false;

4465

__attribute__((cleanup(cleanup_queue)))

4466

task_queue *queue = create_queue();

4467

g_assert_nonnull(queue);

4468

4469

task_context task = {

4470

.func=read_inotify_event,

4471

.epoll_fd=epoll_fd,

4472

.fd=pipefds[0],

4473

.quit_now=&quit_now,

4474

.password=&password,

4475

.filename=strdup("/nonexistent"),

4476

.cancelled_filenames=&cancelled_filenames,

4477

.current_time=&current_time,

4478

.mandos_client_exited=&mandos_client_exited,

4479

.password_is_read=&password_is_read,

4480

};

4481

task.func(task, queue);

4482

g_assert_false(quit_now);

4483

g_assert_true(queue->next_run == 0);

4484

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4485

4486

g_assert_nonnull(find_matching_task(queue, (task_context){

4487

.func=read_inotify_event,

4488

.epoll_fd=epoll_fd,

4489

.fd=pipefds[0],

4490

.quit_now=&quit_now,

4491

.password=&password,

4492

.filename=task.filename,

4493

.cancelled_filenames=&cancelled_filenames,

4494

.current_time=&current_time,

4495

.mandos_client_exited=&mandos_client_exited,

4496

.password_is_read=&password_is_read,

4497

}));

4498

4499

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4500

EPOLLIN | EPOLLRDHUP));

4501

4502

__attribute__((cleanup(cleanup_string)))

4503

char *filename = NULL;

4504

g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,

4505

dummy_file_name), >, 0);

4506

g_assert_nonnull(filename);

4507

g_assert_true(string_set_contains(*task.cancelled_filenames,

4508

filename));

4509

}

4510

4511

static void

4512

test_read_inotify_event_IN_CLOSE_WRITE_badname(__attribute__((unused))

4513

test_fixture *fixture,

4514

__attribute__((unused))

4515

gconstpointer

4516

user_data){

4517

__attribute__((cleanup(cleanup_close)))

4518

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4519

g_assert_cmpint(epoll_fd, >=, 0);

4520

const mono_microsecs current_time = 0;

4521

4522

int pipefds[2];

4523

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4524

4525

/* "sufficient to read at least one event." - inotify(7) */

4526

const size_t ievent_max_size = (sizeof(struct inotify_event)

4527

+ NAME_MAX + 1);

4528

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4529

struct {

4530

struct inotify_event event;

4531

char name_buffer[NAME_MAX + 1];

4532

} ievent_buffer;

4533

struct inotify_event *const ievent = &ievent_buffer.event;

4534

4535

const char dummy_file_name[] = "ignored.dummy_file_name";

4536

ievent->mask = IN_CLOSE_WRITE;

4537

ievent->len = sizeof(dummy_file_name);

4538

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4539

const size_t ievent_size = (sizeof(struct inotify_event)

4540

+ sizeof(dummy_file_name));

4541

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4542

==, ievent_size);

4543

g_assert_cmpint(close(pipefds[1]), ==, 0);

4544

4545

bool quit_now = false;

4546

buffer password = {};

4547

bool mandos_client_exited = false;

4548

bool password_is_read = false;

4549

__attribute__((cleanup(cleanup_queue)))

4550

task_queue *queue = create_queue();

4551

g_assert_nonnull(queue);

4552

4553

task_context task = {

4554

.func=read_inotify_event,

4555

.epoll_fd=epoll_fd,

4556

.fd=pipefds[0],

4557

.quit_now=&quit_now,

4558

.password=&password,

4559

.filename=strdup("/nonexistent"),

4560

.cancelled_filenames = &(string_set){},

4561

.notafter=0,

4562

.current_time=&current_time,

4563

.mandos_client_exited=&mandos_client_exited,

4564

.password_is_read=&password_is_read,

4565

};

4566

task.func(task, queue);

4567

g_assert_false(quit_now);

4568

g_assert_true(queue->next_run == 0);

4569

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4570

4571

g_assert_nonnull(find_matching_task(queue, (task_context){

4572

.func=read_inotify_event,

4573

.epoll_fd=epoll_fd,

4574

.fd=pipefds[0],

4575

.quit_now=&quit_now,

4576

.password=&password,

4577

.filename=task.filename,

4578

.cancelled_filenames=task.cancelled_filenames,

4579

.current_time=&current_time,

4580

.mandos_client_exited=&mandos_client_exited,

4581

.password_is_read=&password_is_read,

4582

}));

4583

4584

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4585

EPOLLIN | EPOLLRDHUP));

4586

}

4587

4588

static void

4589

test_read_inotify_event_IN_MOVED_TO_badname(__attribute__((unused))

4590

test_fixture *fixture,

4591

__attribute__((unused))

4592

gconstpointer user_data){

4593

__attribute__((cleanup(cleanup_close)))

4594

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4595

g_assert_cmpint(epoll_fd, >=, 0);

4596

const mono_microsecs current_time = 0;

4597

4598

int pipefds[2];

4599

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4600

4601

/* "sufficient to read at least one event." - inotify(7) */

4602

const size_t ievent_max_size = (sizeof(struct inotify_event)

4603

+ NAME_MAX + 1);

4604

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4605

struct {

4606

struct inotify_event event;

4607

char name_buffer[NAME_MAX + 1];

4608

} ievent_buffer;

4609

struct inotify_event *const ievent = &ievent_buffer.event;

4610

4611

const char dummy_file_name[] = "ignored.dummy_file_name";

4612

ievent->mask = IN_MOVED_TO;

4613

ievent->len = sizeof(dummy_file_name);

4614

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4615

const size_t ievent_size = (sizeof(struct inotify_event)

4616

+ sizeof(dummy_file_name));

4617

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4618

==, ievent_size);

4619

g_assert_cmpint(close(pipefds[1]), ==, 0);

4620

4621

bool quit_now = false;

4622

buffer password = {};

4623

bool mandos_client_exited = false;

4624

bool password_is_read = false;

4625

__attribute__((cleanup(cleanup_queue)))

4626

task_queue *queue = create_queue();

4627

g_assert_nonnull(queue);

4628

4629

task_context task = {

4630

.func=read_inotify_event,

4631

.epoll_fd=epoll_fd,

4632

.fd=pipefds[0],

4633

.quit_now=&quit_now,

4634

.password=&password,

4635

.filename=strdup("/nonexistent"),

4636

.cancelled_filenames = &(string_set){},

4637

.notafter=0,

4638

.current_time=&current_time,

4639

.mandos_client_exited=&mandos_client_exited,

4640

.password_is_read=&password_is_read,

4641

};

4642

task.func(task, queue);

4643

g_assert_false(quit_now);

4644

g_assert_true(queue->next_run == 0);

4645

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4646

4647

g_assert_nonnull(find_matching_task(queue, (task_context){

4648

.func=read_inotify_event,

4649

.epoll_fd=epoll_fd,

4650

.fd=pipefds[0],

4651

.quit_now=&quit_now,

4652

.password=&password,

4653

.filename=task.filename,

4654

.cancelled_filenames=task.cancelled_filenames,

4655

.current_time=&current_time,

4656

.mandos_client_exited=&mandos_client_exited,

4657

.password_is_read=&password_is_read,

4658

}));

4659

4660

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4661

EPOLLIN | EPOLLRDHUP));

4662

}

4663

4664

static void

4665

test_read_inotify_event_IN_MOVED_FROM_badname(__attribute__((unused))

4666

test_fixture *fixture,

4667

__attribute__((unused))

4668

gconstpointer

4669

user_data){

4670

__attribute__((cleanup(cleanup_close)))

4671

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4672

g_assert_cmpint(epoll_fd, >=, 0);

4673

__attribute__((cleanup(string_set_clear)))

4674

string_set cancelled_filenames = {};

4675

const mono_microsecs current_time = 0;

4676

4677

int pipefds[2];

4678

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4679

4680

/* "sufficient to read at least one event." - inotify(7) */

4681

const size_t ievent_max_size = (sizeof(struct inotify_event)

4682

+ NAME_MAX + 1);

4683

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4684

struct {

4685

struct inotify_event event;

4686

char name_buffer[NAME_MAX + 1];

4687

} ievent_buffer;

4688

struct inotify_event *const ievent = &ievent_buffer.event;

4689

4690

const char dummy_file_name[] = "ignored.dummy_file_name";

4691

ievent->mask = IN_MOVED_FROM;

4692

ievent->len = sizeof(dummy_file_name);

4693

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4694

const size_t ievent_size = (sizeof(struct inotify_event)

4695

+ sizeof(dummy_file_name));

4696

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4697

==, ievent_size);

4698

g_assert_cmpint(close(pipefds[1]), ==, 0);

4699

4700

bool quit_now = false;

4701

buffer password = {};

4702

bool mandos_client_exited = false;

4703

bool password_is_read = false;

4704

__attribute__((cleanup(cleanup_queue)))

4705

task_queue *queue = create_queue();

4706

g_assert_nonnull(queue);

4707

4708

task_context task = {

4709

.func=read_inotify_event,

4710

.epoll_fd=epoll_fd,

4711

.fd=pipefds[0],

4712

.quit_now=&quit_now,

4713

.password=&password,

4714

.filename=strdup("/nonexistent"),

4715

.cancelled_filenames=&cancelled_filenames,

4716

.current_time=&current_time,

4717

.mandos_client_exited=&mandos_client_exited,

4718

.password_is_read=&password_is_read,

4719

};

4720

task.func(task, queue);

4721

g_assert_false(quit_now);

4722

g_assert_true(queue->next_run == 0);

4723

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4724

4725

g_assert_nonnull(find_matching_task(queue, (task_context){

4726

.func=read_inotify_event,

4727

.epoll_fd=epoll_fd,

4728

.fd=pipefds[0],

4729

.quit_now=&quit_now,

4730

.password=&password,

4731

.filename=task.filename,

4732

.cancelled_filenames=&cancelled_filenames,

4733

.current_time=&current_time,

4734

.mandos_client_exited=&mandos_client_exited,

4735

.password_is_read=&password_is_read,

4736

}));

4737

4738

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4739

EPOLLIN | EPOLLRDHUP));

4740

4741

__attribute__((cleanup(cleanup_string)))

4742

char *filename = NULL;

4743

g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,

4744

dummy_file_name), >, 0);

4745

g_assert_nonnull(filename);

4746

g_assert_false(string_set_contains(cancelled_filenames, filename));

4747

}

4748

4749

static

4750

void test_read_inotify_event_IN_DELETE_badname(__attribute__((unused))

4751

test_fixture *fixture,

4752

__attribute__((unused))

4753

gconstpointer

4754

user_data){

4755

__attribute__((cleanup(cleanup_close)))

4756

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4757

g_assert_cmpint(epoll_fd, >=, 0);

4758

__attribute__((cleanup(string_set_clear)))

4759

string_set cancelled_filenames = {};

4760

const mono_microsecs current_time = 0;

4761

4762

int pipefds[2];

4763

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4764

4765

/* "sufficient to read at least one event." - inotify(7) */

4766

const size_t ievent_max_size = (sizeof(struct inotify_event)

4767

+ NAME_MAX + 1);

4768

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4769

struct {

4770

struct inotify_event event;

4771

char name_buffer[NAME_MAX + 1];

4772

} ievent_buffer;

4773

struct inotify_event *const ievent = &ievent_buffer.event;

4774

4775

const char dummy_file_name[] = "ignored.dummy_file_name";

4776

ievent->mask = IN_DELETE;

4777

ievent->len = sizeof(dummy_file_name);

4778

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4779

const size_t ievent_size = (sizeof(struct inotify_event)

4780

+ sizeof(dummy_file_name));

4781

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4782

==, ievent_size);

4783

g_assert_cmpint(close(pipefds[1]), ==, 0);

4784

4785

bool quit_now = false;

4786

buffer password = {};

4787

bool mandos_client_exited = false;

4788

bool password_is_read = false;

4789

__attribute__((cleanup(cleanup_queue)))

4790

task_queue *queue = create_queue();

4791

g_assert_nonnull(queue);

4792

4793

task_context task = {

4794

.func=read_inotify_event,

4795

.epoll_fd=epoll_fd,

4796

.fd=pipefds[0],

4797

.quit_now=&quit_now,

4798

.password=&password,

4799

.filename=strdup("/nonexistent"),

4800

.cancelled_filenames=&cancelled_filenames,

4801

.current_time=&current_time,

4802

.mandos_client_exited=&mandos_client_exited,

4803

.password_is_read=&password_is_read,

4804

};

4805

task.func(task, queue);

4806

g_assert_false(quit_now);

4807

g_assert_true(queue->next_run == 0);

4808

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4809

4810

g_assert_nonnull(find_matching_task(queue, (task_context){

4811

.func=read_inotify_event,

4812

.epoll_fd=epoll_fd,

4813

.fd=pipefds[0],

4814

.quit_now=&quit_now,

4815

.password=&password,

4816

.filename=task.filename,

4817

.cancelled_filenames=&cancelled_filenames,

4818

.current_time=&current_time,

4819

.mandos_client_exited=&mandos_client_exited,

4820

.password_is_read=&password_is_read,

4821

}));

4822

4823

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4824

EPOLLIN | EPOLLRDHUP));

4825

4826

__attribute__((cleanup(cleanup_string)))

4827

char *filename = NULL;

4828

g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,

4829

dummy_file_name), >, 0);

4830

g_assert_nonnull(filename);

4831

g_assert_false(string_set_contains(cancelled_filenames, filename));

4832

}

4833

4834

static

4835

void test_open_and_parse_question_ENOENT(__attribute__((unused))

4836

test_fixture *fixture,

4837

__attribute__((unused))

4838

gconstpointer user_data){

4839

__attribute__((cleanup(cleanup_close)))

4840

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4841

g_assert_cmpint(epoll_fd, >=, 0);

4842

__attribute__((cleanup(string_set_clear)))

4843

string_set cancelled_filenames = {};

4844

bool mandos_client_exited = false;

4845

bool password_is_read = false;

4846

__attribute__((cleanup(cleanup_queue)))

4847

task_queue *queue = create_queue();

4848

g_assert_nonnull(queue);

4849

4850

char *const filename = strdup("/nonexistent");

4851

g_assert_nonnull(filename);

4852

task_context task = {

4853

.func=open_and_parse_question,

4854

.question_filename=filename,

4855

.epoll_fd=epoll_fd,

4856

.password=(buffer[]){{}},

4857

.filename=filename,

4858

.cancelled_filenames=&cancelled_filenames,

4859

.current_time=(mono_microsecs[]){0},

4860

.mandos_client_exited=&mandos_client_exited,

4861

.password_is_read=&password_is_read,

4862

};

4863

task.func(task, queue);

4864

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

4865

}

4866

4867

static void test_open_and_parse_question_EIO(__attribute__((unused))

4868

test_fixture *fixture,

4869

__attribute__((unused))

4870

gconstpointer user_data){

4871

__attribute__((cleanup(cleanup_close)))

4872

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4873

g_assert_cmpint(epoll_fd, >=, 0);

4874

__attribute__((cleanup(string_set_clear)))

4875

string_set cancelled_filenames = {};

4876

buffer password = {};

4877

bool mandos_client_exited = false;

4878

bool password_is_read = false;

4879

__attribute__((cleanup(cleanup_queue)))

4880

task_queue *queue = create_queue();

4881

g_assert_nonnull(queue);

4882

const mono_microsecs current_time = 0;

4883

4884

char *filename = strdup("/proc/self/mem");

4885

task_context task = {

4886

.func=open_and_parse_question,

4887

.question_filename=filename,

4888

.epoll_fd=epoll_fd,

4889

.password=&password,

4890

.filename=filename,

4891

.cancelled_filenames=&cancelled_filenames,

4892

.current_time=&current_time,

4893

.mandos_client_exited=&mandos_client_exited,

4894

.password_is_read=&password_is_read,

4895

};

4896

run_task_with_stderr_to_dev_null(task, queue);

4897

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

4898

}

4899

4900

static void

4901

test_open_and_parse_question_parse_error(__attribute__((unused))

4902

test_fixture *fixture,

4903

__attribute__((unused))

4904

gconstpointer user_data){

4905

__attribute__((cleanup(cleanup_close)))

4906

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4907

g_assert_cmpint(epoll_fd, >=, 0);

4908

__attribute__((cleanup(string_set_clear)))

4909

string_set cancelled_filenames = {};

4910

__attribute__((cleanup(cleanup_queue)))

4911

task_queue *queue = create_queue();

4912

g_assert_nonnull(queue);

4913

4914

__attribute__((cleanup(cleanup_string)))

4915

char *tempfilename = strdup("/tmp/mandosXXXXXX");

4916

g_assert_nonnull(tempfilename);

4917

int tempfile = mkostemp(tempfilename, O_CLOEXEC);

4918

g_assert_cmpint(tempfile, >, 0);

4919

const char bad_data[] = "this is bad syntax\n";

4920

g_assert_cmpint(write(tempfile, bad_data, sizeof(bad_data)),

4921

==, sizeof(bad_data));

4922

g_assert_cmpint(close(tempfile), ==, 0);

4923

4924

char *const filename = strdup(tempfilename);

4925

g_assert_nonnull(filename);

4926

task_context task = {

4927

.func=open_and_parse_question,

4928

.question_filename=filename,

4929

.epoll_fd=epoll_fd,

4930

.password=(buffer[]){{}},

4931

.filename=filename,

4932

.cancelled_filenames=&cancelled_filenames,

4933

.current_time=(mono_microsecs[]){0},

4934

.mandos_client_exited=(bool[]){false},

4935

.password_is_read=(bool[]){false},

4936

};

4937

run_task_with_stderr_to_dev_null(task, queue);

4938

4939

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

4940

4941

g_assert_cmpint(unlink(tempfilename), ==, 0);

4942

}

4943

4944

static

4945

void test_open_and_parse_question_nosocket(__attribute__((unused))

4946

test_fixture *fixture,

4947

__attribute__((unused))

4948

gconstpointer user_data){

4949

__attribute__((cleanup(cleanup_close)))

4950

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4951

g_assert_cmpint(epoll_fd, >=, 0);

4952

__attribute__((cleanup(string_set_clear)))

4953

string_set cancelled_filenames = {};

4954

__attribute__((cleanup(cleanup_queue)))

4955

task_queue *queue = create_queue();

4956

g_assert_nonnull(queue);

4957

4958

__attribute__((cleanup(cleanup_string)))

4959

char *tempfilename = strdup("/tmp/mandosXXXXXX");

4960

g_assert_nonnull(tempfilename);

4961

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

4962

g_assert_cmpint(questionfile, >, 0);

4963

FILE *qf = fdopen(questionfile, "w");

4964

g_assert_cmpint(fprintf(qf, "[Ask]\nPID=1\n"), >, 0);

4965

g_assert_cmpint(fclose(qf), ==, 0);

4966

4967

char *const filename = strdup(tempfilename);

4968

g_assert_nonnull(filename);

4969

task_context task = {

4970

.func=open_and_parse_question,

4971

.question_filename=filename,

4972

.epoll_fd=epoll_fd,

4973

.password=(buffer[]){{}},

4974

.filename=filename,

4975

.cancelled_filenames=&cancelled_filenames,

4976

.current_time=(mono_microsecs[]){0},

4977

.mandos_client_exited=(bool[]){false},

4978

.password_is_read=(bool[]){false},

4979

};

4980

run_task_with_stderr_to_dev_null(task, queue);

4981

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

4982

4983

g_assert_cmpint(unlink(tempfilename), ==, 0);

4984

}

4985

4986

static

4987

void test_open_and_parse_question_badsocket(__attribute__((unused))

4988

test_fixture *fixture,

4989

__attribute__((unused))

4990

gconstpointer user_data){

4991

__attribute__((cleanup(cleanup_close)))

4992

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4993

g_assert_cmpint(epoll_fd, >=, 0);

4994

__attribute__((cleanup(string_set_clear)))

4995

string_set cancelled_filenames = {};

4996

__attribute__((cleanup(cleanup_queue)))

4997

task_queue *queue = create_queue();

4998

g_assert_nonnull(queue);

4999

5000

__attribute__((cleanup(cleanup_string)))

5001

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5002

g_assert_nonnull(tempfilename);

5003

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5004

g_assert_cmpint(questionfile, >, 0);

5005

FILE *qf = fdopen(questionfile, "w");

5006

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=\nPID=1\n"), >, 0);

5007

g_assert_cmpint(fclose(qf), ==, 0);

5008

5009

char *const filename = strdup(tempfilename);

5010

g_assert_nonnull(filename);

5011

task_context task = {

5012

.func=open_and_parse_question,

5013

.question_filename=filename,

5014

.epoll_fd=epoll_fd,

5015

.password=(buffer[]){{}},

5016

.filename=filename,

5017

.cancelled_filenames=&cancelled_filenames,

5018

.current_time=(mono_microsecs[]){0},

5019

.mandos_client_exited=(bool[]){false},

5020

.password_is_read=(bool[]){false},

5021

};

5022

run_task_with_stderr_to_dev_null(task, queue);

5023

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5024

5025

g_assert_cmpint(unlink(tempfilename), ==, 0);

5026

}

5027

5028

static

5029

void test_open_and_parse_question_nopid(__attribute__((unused))

5030

test_fixture *fixture,

5031

__attribute__((unused))

5032

gconstpointer user_data){

5033

__attribute__((cleanup(cleanup_close)))

5034

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5035

g_assert_cmpint(epoll_fd, >=, 0);

5036

__attribute__((cleanup(string_set_clear)))

5037

string_set cancelled_filenames = {};

5038

__attribute__((cleanup(cleanup_queue)))

5039

task_queue *queue = create_queue();

5040

g_assert_nonnull(queue);

5041

5042

__attribute__((cleanup(cleanup_string)))

5043

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5044

g_assert_nonnull(tempfilename);

5045

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5046

g_assert_cmpint(questionfile, >, 0);

5047

FILE *qf = fdopen(questionfile, "w");

5048

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\n"), >, 0);

5049

g_assert_cmpint(fclose(qf), ==, 0);

5050

5051

char *const filename = strdup(tempfilename);

5052

g_assert_nonnull(filename);

5053

task_context task = {

5054

.func=open_and_parse_question,

5055

.question_filename=filename,

5056

.epoll_fd=epoll_fd,

5057

.password=(buffer[]){{}},

5058

.filename=filename,

5059

.cancelled_filenames=&cancelled_filenames,

5060

.current_time=(mono_microsecs[]){0},

5061

.mandos_client_exited=(bool[]){false},

5062

.password_is_read=(bool[]){false},

5063

};

5064

run_task_with_stderr_to_dev_null(task, queue);

5065

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5066

5067

g_assert_cmpint(unlink(tempfilename), ==, 0);

5068

}

5069

5070

static

5071

void test_open_and_parse_question_badpid(__attribute__((unused))

5072

test_fixture *fixture,

5073

__attribute__((unused))

5074

gconstpointer user_data){

5075

__attribute__((cleanup(cleanup_close)))

5076

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5077

g_assert_cmpint(epoll_fd, >=, 0);

5078

__attribute__((cleanup(string_set_clear)))

5079

string_set cancelled_filenames = {};

5080

__attribute__((cleanup(cleanup_queue)))

5081

task_queue *queue = create_queue();

5082

g_assert_nonnull(queue);

5083

5084

__attribute__((cleanup(cleanup_string)))

5085

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5086

g_assert_nonnull(tempfilename);

5087

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5088

g_assert_cmpint(questionfile, >, 0);

5089

FILE *qf = fdopen(questionfile, "w");

5090

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=\n"),

5091

>, 0);

5092

g_assert_cmpint(fclose(qf), ==, 0);

5093

5094

char *const filename = strdup(tempfilename);

5095

g_assert_nonnull(filename);

5096

task_context task = {

5097

.func=open_and_parse_question,

5098

.question_filename=filename,

5099

.epoll_fd=epoll_fd,

5100

.password=(buffer[]){{}},

5101

.filename=filename,

5102

.cancelled_filenames=&cancelled_filenames,

5103

.current_time=(mono_microsecs[]){0},

5104

.mandos_client_exited=(bool[]){false},

5105

.password_is_read=(bool[]){false},

5106

};

5107

run_task_with_stderr_to_dev_null(task, queue);

5108

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5109

5110

g_assert_cmpint(unlink(tempfilename), ==, 0);

5111

}

5112

5113

static void

5114

test_open_and_parse_question_noexist_pid(__attribute__((unused))

5115

test_fixture *fixture,

5116

__attribute__((unused))

5117

gconstpointer user_data){

5118

__attribute__((cleanup(cleanup_close)))

5119

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5120

g_assert_cmpint(epoll_fd, >=, 0);

5121

__attribute__((cleanup(string_set_clear)))

5122

string_set cancelled_filenames = {};

5123

buffer password = {};

5124

bool mandos_client_exited = false;

5125

bool password_is_read = false;

5126

__attribute__((cleanup(cleanup_queue)))

5127

task_queue *queue = create_queue();

5128

g_assert_nonnull(queue);

5129

const mono_microsecs current_time = 0;

5130

5131

/* Find value of sysctl kernel.pid_max */

5132

uintmax_t pid_max = 0;

5133

FILE *sysctl_pid_max = fopen("/proc/sys/kernel/pid_max", "r");

5134

g_assert_nonnull(sysctl_pid_max);

5135

g_assert_cmpint(fscanf(sysctl_pid_max, "%" PRIuMAX, &pid_max),

5136

==, 1);

5137

g_assert_cmpint(fclose(sysctl_pid_max), ==, 0);

5138

5139

pid_t nonexisting_pid = ((pid_t)pid_max)+1;

5140

g_assert_true(nonexisting_pid > 0); /* Overflow check */

5141

5142

__attribute__((cleanup(cleanup_string)))

5143

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5144

g_assert_nonnull(tempfilename);

5145

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5146

g_assert_cmpint(questionfile, >, 0);

5147

FILE *qf = fdopen(questionfile, "w");

5148

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"

5149

PRIuMAX"\n", (uintmax_t)nonexisting_pid),

5150

>, 0);

5151

g_assert_cmpint(fclose(qf), ==, 0);

5152

5153

char *const question_filename = strdup(tempfilename);

5154

g_assert_nonnull(question_filename);

5155

task_context task = {

5156

.func=open_and_parse_question,

5157

.question_filename=question_filename,

5158

.epoll_fd=epoll_fd,

5159

.password=&password,

5160

.filename=question_filename,

5161

.cancelled_filenames=&cancelled_filenames,

5162

.current_time=&current_time,

5163

.mandos_client_exited=&mandos_client_exited,

5164

.password_is_read=&password_is_read,

5165

};

5166

run_task_with_stderr_to_dev_null(task, queue);

5167

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5168

5169

g_assert_cmpint(unlink(tempfilename), ==, 0);

5170

}

5171

5172

static void

5173

test_open_and_parse_question_no_notafter(__attribute__((unused))

5174

test_fixture *fixture,

5175

__attribute__((unused))

5176

gconstpointer user_data){

5177

__attribute__((cleanup(cleanup_close)))

5178

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5179

g_assert_cmpint(epoll_fd, >=, 0);

5180

__attribute__((cleanup(string_set_clear)))

5181

string_set cancelled_filenames = {};

5182

buffer password = {};

5183

bool mandos_client_exited = false;

5184

bool password_is_read = false;

5185

__attribute__((cleanup(cleanup_queue)))

5186

task_queue *queue = create_queue();

5187

g_assert_nonnull(queue);

5188

const mono_microsecs current_time = 0;

5189

5190

__attribute__((cleanup(cleanup_string)))

5191

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5192

g_assert_nonnull(tempfilename);

5193

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5194

g_assert_cmpint(questionfile, >, 0);

5195

FILE *qf = fdopen(questionfile, "w");

5196

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"

5197

PRIuMAX "\n", (uintmax_t)getpid()), >, 0);

5198

g_assert_cmpint(fclose(qf), ==, 0);

5199

5200

char *const filename = strdup(tempfilename);

5201

g_assert_nonnull(filename);

5202

task_context task = {

5203

.func=open_and_parse_question,

5204

.question_filename=filename,

5205

.epoll_fd=epoll_fd,

5206

.password=&password,

5207

.filename=filename,

5208

.cancelled_filenames=&cancelled_filenames,

5209

.current_time=&current_time,

5210

.mandos_client_exited=&mandos_client_exited,

5211

.password_is_read=&password_is_read,

5212

};

5213

task.func(task, queue);

5214

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5215

5216

__attribute__((cleanup(cleanup_string)))

5217

char *socket_filename = strdup("/nonexistent");

5218

g_assert_nonnull(socket_filename);

5219

g_assert_nonnull(find_matching_task(queue, (task_context){

5220

.func=connect_question_socket,

5221

.question_filename=tempfilename,

5222

.filename=socket_filename,

5223

.epoll_fd=epoll_fd,

5224

.password=&password,

5225

.current_time=&current_time,

5226

.mandos_client_exited=&mandos_client_exited,

5227

.password_is_read=&password_is_read,

5228

}));

5229

5230

g_assert_true(queue->next_run != 0);

5231

5232

g_assert_cmpint(unlink(tempfilename), ==, 0);

5233

}

5234

5235

static void

5236

test_open_and_parse_question_bad_notafter(__attribute__((unused))

5237

test_fixture *fixture,

5238

__attribute__((unused))

5239

gconstpointer user_data){

5240

__attribute__((cleanup(cleanup_close)))

5241

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5242

g_assert_cmpint(epoll_fd, >=, 0);

5243

__attribute__((cleanup(string_set_clear)))

5244

string_set cancelled_filenames = {};

5245

buffer password = {};

5246

bool mandos_client_exited = false;

5247

bool password_is_read = false;

5248

__attribute__((cleanup(cleanup_queue)))

5249

task_queue *queue = create_queue();

5250

g_assert_nonnull(queue);

5251

const mono_microsecs current_time = 0;

5252

5253

__attribute__((cleanup(cleanup_string)))

5254

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5255

g_assert_nonnull(tempfilename);

5256

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5257

g_assert_cmpint(questionfile, >, 0);

5258

FILE *qf = fdopen(questionfile, "w");

5259

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"

5260

PRIuMAX "\nNotAfter=\n",

5261

(uintmax_t)getpid()), >, 0);

5262

g_assert_cmpint(fclose(qf), ==, 0);

5263

5264

char *const filename = strdup(tempfilename);

5265

g_assert_nonnull(filename);

5266

task_context task = {

5267

.func=open_and_parse_question,

5268

.question_filename=filename,

5269

.epoll_fd=epoll_fd,

5270

.password=&password,

5271

.filename=filename,

5272

.cancelled_filenames=&cancelled_filenames,

5273

.current_time=&current_time,

5274

.mandos_client_exited=&mandos_client_exited,

5275

.password_is_read=&password_is_read,

5276

};

5277

run_task_with_stderr_to_dev_null(task, queue);

5278

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5279

5280

__attribute__((cleanup(cleanup_string)))

5281

char *socket_filename = strdup("/nonexistent");

5282

g_assert_nonnull(find_matching_task(queue, (task_context){

5283

.func=connect_question_socket,

5284

.question_filename=tempfilename,

5285

.filename=socket_filename,

5286

.epoll_fd=epoll_fd,

5287

.password=&password,

5288

.current_time=&current_time,

5289

.mandos_client_exited=&mandos_client_exited,

5290

.password_is_read=&password_is_read,

5291

}));

5292

g_assert_true(queue->next_run != 0);

5293

5294

g_assert_cmpint(unlink(tempfilename), ==, 0);

5295

}

5296

5297

static

5298

void assert_open_and_parse_question_with_notafter(const mono_microsecs

5299

current_time,

5300

const mono_microsecs

5301

notafter,

5302

const mono_microsecs

5303

next_queue_run){

5304

__attribute__((cleanup(cleanup_close)))

5305

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5306

g_assert_cmpint(epoll_fd, >=, 0);

5307

__attribute__((cleanup(string_set_clear)))

5308

string_set cancelled_filenames = {};

5309

buffer password = {};

5310

bool mandos_client_exited = false;

5311

bool password_is_read = false;

5312

__attribute__((cleanup(cleanup_queue)))

5313

task_queue *queue = create_queue();

5314

g_assert_nonnull(queue);

5315

queue->next_run = next_queue_run;

5316

5317

__attribute__((cleanup(cleanup_string)))

5318

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5319

g_assert_nonnull(tempfilename);

5320

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5321

g_assert_cmpint(questionfile, >, 0);

5322

FILE *qf = fdopen(questionfile, "w");

5323

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"

5324

PRIuMAX "\nNotAfter=%" PRIuMAX "\n",

5325

(uintmax_t)getpid(), notafter), >, 0);

5326

g_assert_cmpint(fclose(qf), ==, 0);

5327

5328

char *const filename = strdup(tempfilename);

5329

g_assert_nonnull(filename);

5330

task_context task = {

5331

.func=open_and_parse_question,

5332

.question_filename=filename,

5333

.epoll_fd=epoll_fd,

5334

.password=&password,

5335

.filename=filename,

5336

.cancelled_filenames=&cancelled_filenames,

5337

.current_time=&current_time,

5338

.mandos_client_exited=&mandos_client_exited,

5339

.password_is_read=&password_is_read,

5340

};

5341

task.func(task, queue);

5342

5343

if(queue->length >= 1){

5344

__attribute__((cleanup(cleanup_string)))

5345

char *socket_filename = strdup("/nonexistent");

5346

g_assert_nonnull(find_matching_task(queue, (task_context){

5347

.func=connect_question_socket,

5348

.filename=socket_filename,

5349

.epoll_fd=epoll_fd,

5350

.password=&password,

5351

.current_time=&current_time,

5352

.cancelled_filenames=&cancelled_filenames,

5353

.mandos_client_exited=&mandos_client_exited,

5354

.password_is_read=&password_is_read,

5355

}));

5356

g_assert_true(queue->next_run != 0);

5357

}

5358

5359

if(notafter == 0){

5360

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5361

} else if(current_time >= notafter) {

5362

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5363

} else {

5364

g_assert_nonnull(find_matching_task(queue, (task_context){

5365

.func=cancel_old_question,

5366

.question_filename=tempfilename,

5367

.filename=tempfilename,

5368

.notafter=notafter,

5369

.cancelled_filenames=&cancelled_filenames,

5370

.current_time=&current_time,

5371

}));

5372

}

5373

g_assert_true(queue->next_run == 1);

5374

5375

g_assert_cmpint(unlink(tempfilename), ==, 0);

5376

}

5377

5378

static void

5379

test_open_and_parse_question_notafter_0(__attribute__((unused))

5380

test_fixture *fixture,

5381

__attribute__((unused))

5382

gconstpointer user_data){

5383

/* current_time, notafter, next_queue_run */

5384

assert_open_and_parse_question_with_notafter(0, 0, 0);

5385

}

5386

5387

static void

5388

test_open_and_parse_question_notafter_1(__attribute__((unused))

5389

test_fixture *fixture,

5390

__attribute__((unused))

5391

gconstpointer user_data){

5392

/* current_time, notafter, next_queue_run */

5393

assert_open_and_parse_question_with_notafter(0, 1, 0);

5394

}

5395

5396

static void

5397

test_open_and_parse_question_notafter_1_1(__attribute__((unused))

5398

test_fixture *fixture,

5399

__attribute__((unused))

5400

gconstpointer user_data){

5401

/* current_time, notafter, next_queue_run */

5402

assert_open_and_parse_question_with_notafter(0, 1, 1);

5403

}

5404

5405

static void

5406

test_open_and_parse_question_notafter_1_2(__attribute__((unused))

5407

test_fixture *fixture,

5408

__attribute__((unused))

5409

gconstpointer user_data){

5410

/* current_time, notafter, next_queue_run */

5411

assert_open_and_parse_question_with_notafter(0, 1, 2);

5412

}

5413

5414

static void

5415

test_open_and_parse_question_equal_notafter(__attribute__((unused))

5416

test_fixture *fixture,

5417

__attribute__((unused))

5418

gconstpointer user_data){

5419

/* current_time, notafter, next_queue_run */

5420

assert_open_and_parse_question_with_notafter(1, 1, 0);

5421

}

5422

5423

static void

5424

test_open_and_parse_question_late_notafter(__attribute__((unused))

5425

test_fixture *fixture,

5426

__attribute__((unused))

5427

gconstpointer user_data){

5428

/* current_time, notafter, next_queue_run */

5429

assert_open_and_parse_question_with_notafter(2, 1, 0);

5430

}

5431

5432

static void assert_cancel_old_question_param(const mono_microsecs

5433

next_queue_run,

5434

const mono_microsecs

5435

notafter,

5436

const mono_microsecs

5437

current_time,

5438

const mono_microsecs

5439

next_set_to){

5440

__attribute__((cleanup(string_set_clear)))

5441

string_set cancelled_filenames = {};

5442

__attribute__((cleanup(cleanup_queue)))

5443

task_queue *queue = create_queue();

5444

g_assert_nonnull(queue);

5445

queue->next_run = next_queue_run;

5446

5447

char *const question_filename = strdup("/nonexistent");

5448

g_assert_nonnull(question_filename);

5449

task_context task = {

5450

.func=cancel_old_question,

5451

.question_filename=question_filename,

5452

.filename=question_filename,

5453

.notafter=notafter,

5454

.cancelled_filenames=&cancelled_filenames,

5455

.current_time=&current_time,

5456

};

5457

task.func(task, queue);

5458

5459

if(current_time >= notafter){

5460

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5461

g_assert_true(string_set_contains(cancelled_filenames,

5462

"/nonexistent"));

5463

} else {

5464

g_assert_nonnull(find_matching_task(queue, (task_context){

5465

.func=cancel_old_question,

5466

.question_filename=question_filename,

5467

.filename=question_filename,

5468

.notafter=notafter,

5469

.cancelled_filenames=&cancelled_filenames,

5470

.current_time=&current_time,

5471

}));

5472

5473

g_assert_false(string_set_contains(cancelled_filenames,

5474

question_filename));

5475

}

5476

g_assert_cmpuint((unsigned int)queue->next_run, ==,

5477

(unsigned int)next_set_to);

5478

}

5479

5480

static void test_cancel_old_question_0_1_2(__attribute__((unused))

5481

test_fixture *fixture,

5482

__attribute__((unused))

5483

gconstpointer user_data){

5484

/* next_queue_run unset,

5485

cancellation should happen because time has come,

5486

next_queue_run should be unchanged */

5487

/* next_queue_run, notafter, current_time, next_set_to */

5488

assert_cancel_old_question_param(0, 1, 2, 0);

5489

}

5490

5491

static void test_cancel_old_question_0_2_1(__attribute__((unused))

5492

test_fixture *fixture,

5493

__attribute__((unused))

5494

gconstpointer user_data){

5495

/* If next_queue_run is 0, meaning unset, and notafter is 2,

5496

and current_time is not yet notafter or greater,

5497

update value of next_queue_run to value of notafter */

5498

/* next_queue_run, notafter, current_time, next_set_to */

5499

assert_cancel_old_question_param(0, 2, 1, 2);

5500

}

5501

5502

static void test_cancel_old_question_1_2_3(__attribute__((unused))

5503

test_fixture *fixture,

5504

__attribute__((unused))

5505

gconstpointer user_data){

5506

/* next_queue_run 1,

5507

cancellation should happen because time has come,

5508

next_queue_run should be unchanged */

5509

/* next_queue_run, notafter, current_time, next_set_to */

5510

assert_cancel_old_question_param(1, 2, 3, 1);

5511

}

5512

5513

static void test_cancel_old_question_1_3_2(__attribute__((unused))

5514

test_fixture *fixture,

5515

__attribute__((unused))

5516

gconstpointer user_data){

5517

/* If next_queue_run is set,

5518

and current_time is not yet notafter or greater,

5519

and notafter is larger than next_queue_run

5520

next_queue_run should be unchanged */

5521

/* next_queue_run, notafter, current_time, next_set_to */

5522

assert_cancel_old_question_param(1, 3, 2, 1);

5523

}

5524

5525

static void test_cancel_old_question_2_1_3(__attribute__((unused))

5526

test_fixture *fixture,

5527

__attribute__((unused))

5528

gconstpointer user_data){

5529

/* next_queue_run 2,

5530

cancellation should happen because time has come,

5531

next_queue_run should be unchanged */

5532

/* next_queue_run, notafter, current_time, next_set_to */

5533

assert_cancel_old_question_param(2, 1, 3, 2);

5534

}

5535

5536

static void test_cancel_old_question_2_3_1(__attribute__((unused))

5537

test_fixture *fixture,

5538

__attribute__((unused))

5539

gconstpointer user_data){

5540

/* If next_queue_run is set,

5541

and current_time is not yet notafter or greater,

5542

and notafter is larger than next_queue_run

5543

next_queue_run should be unchanged */

5544

/* next_queue_run, notafter, current_time, next_set_to */

5545

assert_cancel_old_question_param(2, 3, 1, 2);

5546

}

5547

5548

static void test_cancel_old_question_3_1_2(__attribute__((unused))

5549

test_fixture *fixture,

5550

__attribute__((unused))

5551

gconstpointer user_data){

5552

/* next_queue_run 3,

5553

cancellation should happen because time has come,

5554

next_queue_run should be unchanged */

5555

/* next_queue_run, notafter, current_time, next_set_to */

5556

assert_cancel_old_question_param(3, 1, 2, 3);

5557

}

5558

5559

static void test_cancel_old_question_3_2_1(__attribute__((unused))

5560

test_fixture *fixture,

5561

__attribute__((unused))

5562

gconstpointer user_data){

5563

/* If next_queue_run is set,

5564

and current_time is not yet notafter or greater,

5565

and notafter is smaller than next_queue_run

5566

update value of next_queue_run to value of notafter */

5567

/* next_queue_run, notafter, current_time, next_set_to */

5568

assert_cancel_old_question_param(3, 2, 1, 2);

5569

}

5570

5571

static void

5572

test_connect_question_socket_name_too_long(__attribute__((unused))

5573

test_fixture *fixture,

5574

__attribute__((unused))

5575

gconstpointer user_data){

5576

__attribute__((cleanup(cleanup_close)))

5577

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5578

g_assert_cmpint(epoll_fd, >=, 0);

5579

const char question_filename[] = "/nonexistent/question";

5580

__attribute__((cleanup(string_set_clear)))

5581

string_set cancelled_filenames = {};

5582

__attribute__((cleanup(cleanup_queue)))

5583

task_queue *queue = create_queue();

5584

g_assert_nonnull(queue);

5585

__attribute__((cleanup(cleanup_string)))

5586

char *tempdir = make_temporary_directory();

5587

g_assert_nonnull(tempdir);

5588

struct sockaddr_un unix_socket = { .sun_family=AF_LOCAL };

5589

char socket_name[sizeof(unix_socket.sun_path)];

5590

memset(socket_name, 'x', sizeof(socket_name));

5591

socket_name[sizeof(socket_name)-1] = '\0';

5592

char *filename = NULL;

5593

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5594

>, 0);

5595

g_assert_nonnull(filename);

5596

5597

task_context task = {

5598

.func=connect_question_socket,

5599

.question_filename=strdup(question_filename),

5600

.epoll_fd=epoll_fd,

5601

.password=(buffer[]){{}},

5602

.filename=filename,

5603

.cancelled_filenames=&cancelled_filenames,

5604

.mandos_client_exited=(bool[]){false},

5605

.password_is_read=(bool[]){false},

5606

.current_time=(mono_microsecs[]){0},

5607

};

5608

g_assert_nonnull(task.question_filename);

5609

run_task_with_stderr_to_dev_null(task, queue);

5610

5611

g_assert_true(string_set_contains(cancelled_filenames,

5612

question_filename));

5613

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5614

g_assert_true(queue->next_run == 0);

5615

5616

g_assert_cmpint(rmdir(tempdir), ==, 0);

5617

}

5618

5619

static

5620

void test_connect_question_socket_connect_fail(__attribute__((unused))

5621

test_fixture *fixture,

5622

__attribute__((unused))

5623

gconstpointer

5624

user_data){

5625

__attribute__((cleanup(cleanup_close)))

5626

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5627

g_assert_cmpint(epoll_fd, >=, 0);

5628

const char question_filename[] = "/nonexistent/question";

5629

__attribute__((cleanup(string_set_clear)))

5630

string_set cancelled_filenames = {};

5631

const mono_microsecs current_time = 3;

5632

__attribute__((cleanup(cleanup_queue)))

5633

task_queue *queue = create_queue();

5634

g_assert_nonnull(queue);

5635

__attribute__((cleanup(cleanup_string)))

5636

char *tempdir = make_temporary_directory();

5637

g_assert_nonnull(tempdir);

5638

char socket_name[] = "nonexistent";

5639

char *filename = NULL;

5640

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5641

>, 0);

5642

g_assert_nonnull(filename);

5643

5644

task_context task = {

5645

.func=connect_question_socket,

5646

.question_filename=strdup(question_filename),

5647

.epoll_fd=epoll_fd,

5648

.password=(buffer[]){{}},

5649

.filename=filename,

5650

.cancelled_filenames=&cancelled_filenames,

5651

.mandos_client_exited=(bool[]){false},

5652

.password_is_read=(bool[]){false},

5653

.current_time=&current_time,

5654

};

5655

g_assert_nonnull(task.question_filename);

5656

run_task_with_stderr_to_dev_null(task, queue);

5657

5658

g_assert_nonnull(find_matching_task(queue, task));

5659

5660

g_assert_false(string_set_contains(cancelled_filenames,

5661

question_filename));

5662

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5663

g_assert_true(queue->next_run == 1000000 + current_time);

5664

5665

g_assert_cmpint(rmdir(tempdir), ==, 0);

5666

}

5667

5668

static

5669

void test_connect_question_socket_bad_epoll(__attribute__((unused))

5670

test_fixture *fixture,

5671

__attribute__((unused))

5672

gconstpointer user_data){

5673

__attribute__((cleanup(cleanup_close)))

5674

const int epoll_fd = open("/dev/null",

5675

O_WRONLY | O_CLOEXEC | O_NOCTTY);

5676

__attribute__((cleanup(cleanup_string)))

5677

char *const question_filename = strdup("/nonexistent/question");

5678

g_assert_nonnull(question_filename);

5679

__attribute__((cleanup(string_set_clear)))

5680

string_set cancelled_filenames = {};

5681

const mono_microsecs current_time = 5;

5682

__attribute__((cleanup(cleanup_queue)))

5683

task_queue *queue = create_queue();

5684

g_assert_nonnull(queue);

5685

__attribute__((cleanup(cleanup_string)))

5686

char *tempdir = make_temporary_directory();

5687

g_assert_nonnull(tempdir);

5688

__attribute__((cleanup(cleanup_close)))

5689

const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM

5690

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

5691

g_assert_cmpint(sock_fd, >=, 0);

5692

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

5693

const char socket_name[] = "socket_name";

5694

__attribute__((cleanup(cleanup_string)))

5695

char *filename = NULL;

5696

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5697

>, 0);

5698

g_assert_nonnull(filename);

5699

g_assert_cmpint((int)strlen(filename), <,

5700

(int)sizeof(sock_name.sun_path));

5701

strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));

5702

sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';

5703

g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,

5704

(socklen_t)SUN_LEN(&sock_name)), >=, 0);

5705

task_context task = {

5706

.func=connect_question_socket,

5707

.question_filename=strdup(question_filename),

5708

.epoll_fd=epoll_fd,

5709

.password=(buffer[]){{}},

5710

.filename=strdup(filename),

5711

.cancelled_filenames=&cancelled_filenames,

5712

.mandos_client_exited=(bool[]){false},

5713

.password_is_read=(bool[]){false},

5714

.current_time=&current_time,

5715

};

5716

g_assert_nonnull(task.question_filename);

5717

run_task_with_stderr_to_dev_null(task, queue);

5718

5719

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5720

const task_context *const added_task

5721

= find_matching_task(queue, task);

5722

g_assert_nonnull(added_task);

5723

g_assert_true(queue->next_run == 1000000 + current_time);

5724

5725

g_assert_cmpint(unlink(filename), ==, 0);

5726

g_assert_cmpint(rmdir(tempdir), ==, 0);

5727

}

5728

5729

static

5730

void test_connect_question_socket_usable(__attribute__((unused))

5731

test_fixture *fixture,

5732

__attribute__((unused))

5733

gconstpointer user_data){

5734

__attribute__((cleanup(cleanup_close)))

5735

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5736

g_assert_cmpint(epoll_fd, >=, 0);

5737

__attribute__((cleanup(cleanup_string)))

5738

char *const question_filename = strdup("/nonexistent/question");

5739

g_assert_nonnull(question_filename);

5740

__attribute__((cleanup(string_set_clear)))

5741

string_set cancelled_filenames = {};

5742

buffer password = {};

5743

bool mandos_client_exited = false;

5744

bool password_is_read = false;

5745

const mono_microsecs current_time = 0;

5746

__attribute__((cleanup(cleanup_queue)))

5747

task_queue *queue = create_queue();

5748

g_assert_nonnull(queue);

5749

__attribute__((cleanup(cleanup_string)))

5750

char *tempdir = make_temporary_directory();

5751

g_assert_nonnull(tempdir);

5752

__attribute__((cleanup(cleanup_close)))

5753

const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM

5754

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

5755

g_assert_cmpint(sock_fd, >=, 0);

5756

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

5757

const char socket_name[] = "socket_name";

5758

__attribute__((cleanup(cleanup_string)))

5759

char *filename = NULL;

5760

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5761

>, 0);

5762

g_assert_nonnull(filename);

5763

g_assert_cmpint((int)strlen(filename), <,

5764

(int)sizeof(sock_name.sun_path));

5765

strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));

5766

sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';

5767

g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,

5768

(socklen_t)SUN_LEN(&sock_name)), >=, 0);

5769

task_context task = {

5770

.func=connect_question_socket,

5771

.question_filename=strdup(question_filename),

5772

.epoll_fd=epoll_fd,

5773

.password=&password,

5774

.filename=strdup(filename),

5775

.cancelled_filenames=&cancelled_filenames,

5776

.mandos_client_exited=&mandos_client_exited,

5777

.password_is_read=&password_is_read,

5778

.current_time=&current_time,

5779

};

5780

g_assert_nonnull(task.question_filename);

5781

task.func(task, queue);

5782

5783

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5784

const task_context *const added_task

5785

= find_matching_task(queue, (task_context){

5786

.func=send_password_to_socket,

5787

.question_filename=question_filename,

5788

.filename=filename,

5789

.epoll_fd=epoll_fd,

5790

.password=&password,

5791

.cancelled_filenames=&cancelled_filenames,

5792

.mandos_client_exited=&mandos_client_exited,

5793

.password_is_read=&password_is_read,

5794

.current_time=&current_time,

5795

});

5796

g_assert_nonnull(added_task);

5797

g_assert_cmpint(added_task->fd, >, 0);

5798

5799

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5800

EPOLLOUT));

5801

5802

const int fd = added_task->fd;

5803

g_assert_cmpint(fd, >, 0);

5804

g_assert_true(fd_has_cloexec_and_nonblock(fd));

5805

5806

/* write to fd */

5807

char write_data[PIPE_BUF];

5808

{

5809

/* Construct test password buffer */

5810

/* Start with + since that is what the real procotol uses */

5811

write_data[0] = '+';

5812

/* Set a special character at string end just to mark the end */

5813

write_data[sizeof(write_data)-2] = 'y';

5814

/* Set NUL at buffer end, as suggested by the protocol */

5815

write_data[sizeof(write_data)-1] = '\0';

5816

/* Fill rest of password with 'x' */

5817

memset(write_data+1, 'x', sizeof(write_data)-3);

5818

g_assert_cmpint((int)send(fd, write_data, sizeof(write_data),

5819

MSG_NOSIGNAL), ==, sizeof(write_data));

5820

}

5821

5822

/* read from sock_fd */

5823

char read_data[sizeof(write_data)];

5824

g_assert_cmpint((int)read(sock_fd, read_data, sizeof(read_data)),

5825

==, sizeof(read_data));

5826

5827

g_assert_true(memcmp(write_data, read_data, sizeof(write_data))

5828

== 0);

5829

5830

/* writing to sock_fd should fail */

5831

g_assert_cmpint(send(sock_fd, write_data, sizeof(write_data),

5832

MSG_NOSIGNAL), <, 0);

5833

5834

/* reading from fd should fail */

5835

g_assert_cmpint((int)recv(fd, read_data, sizeof(read_data),

5836

MSG_NOSIGNAL), <, 0);

5837

5838

g_assert_cmpint(unlink(filename), ==, 0);

5839

g_assert_cmpint(rmdir(tempdir), ==, 0);

5840

}

5841

5842

static void

5843

test_send_password_to_socket_client_not_exited(__attribute__((unused))

5844

test_fixture *fixture,

5845

__attribute__((unused))

5846

gconstpointer

5847

user_data){

5848

__attribute__((cleanup(cleanup_close)))

5849

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5850

g_assert_cmpint(epoll_fd, >=, 0);

5851

__attribute__((cleanup(cleanup_string)))

5852

char *const question_filename = strdup("/nonexistent/question");

5853

g_assert_nonnull(question_filename);

5854

__attribute__((cleanup(cleanup_string)))

5855

char *const filename = strdup("/nonexistent/socket");

5856

g_assert_nonnull(filename);

5857

__attribute__((cleanup(string_set_clear)))

5858

string_set cancelled_filenames = {};

5859

buffer password = {};

5860

bool password_is_read = true;

5861

__attribute__((cleanup(cleanup_queue)))

5862

task_queue *queue = create_queue();

5863

g_assert_nonnull(queue);

5864

int socketfds[2];

5865

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5866

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5867

socketfds), ==, 0);

5868

__attribute__((cleanup(cleanup_close)))

5869

const int read_socket = socketfds[0];

5870

const int write_socket = socketfds[1];

5871

task_context task = {

5872

.func=send_password_to_socket,

5873

.question_filename=strdup(question_filename),

5874

.filename=strdup(filename),

5875

.epoll_fd=epoll_fd,

5876

.fd=write_socket,

5877

.password=&password,

5878

.cancelled_filenames=&cancelled_filenames,

5879

.mandos_client_exited=(bool[]){false},

5880

.password_is_read=&password_is_read,

5881

.current_time=(mono_microsecs[]){0},

5882

};

5883

g_assert_nonnull(task.question_filename);

5884

5885

task.func(task, queue);

5886

5887

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5888

5889

const task_context *const added_task

5890

= find_matching_task(queue, task);

5891

g_assert_nonnull(added_task);

5892

g_assert_cmpuint((unsigned int)password.length, ==, 0);

5893

g_assert_true(password_is_read);

5894

5895

g_assert_cmpint(added_task->fd, >, 0);

5896

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5897

EPOLLOUT));

5898

}

5899

5900

static void

5901

test_send_password_to_socket_password_not_read(__attribute__((unused))

5902

test_fixture *fixture,

5903

__attribute__((unused))

5904

gconstpointer

5905

user_data){

5906

__attribute__((cleanup(cleanup_close)))

5907

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5908

g_assert_cmpint(epoll_fd, >=, 0);

5909

__attribute__((cleanup(cleanup_string)))

5910

char *const question_filename = strdup("/nonexistent/question");

5911

g_assert_nonnull(question_filename);

5912

__attribute__((cleanup(cleanup_string)))

5913

char *const filename = strdup("/nonexistent/socket");

5914

__attribute__((cleanup(string_set_clear)))

5915

string_set cancelled_filenames = {};

5916

buffer password = {};

5917

__attribute__((cleanup(cleanup_queue)))

5918

task_queue *queue = create_queue();

5919

g_assert_nonnull(queue);

5920

int socketfds[2];

5921

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5922

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5923

socketfds), ==, 0);

5924

__attribute__((cleanup(cleanup_close)))

5925

const int read_socket = socketfds[0];

5926

const int write_socket = socketfds[1];

5927

task_context task = {

5928

.func=send_password_to_socket,

5929

.question_filename=strdup(question_filename),

5930

.filename=strdup(filename),

5931

.epoll_fd=epoll_fd,

5932

.fd=write_socket,

5933

.password=&password,

5934

.cancelled_filenames=&cancelled_filenames,

5935

.mandos_client_exited=(bool[]){false},

5936

.password_is_read=(bool[]){false},

5937

.current_time=(mono_microsecs[]){0},

5938

};

5939

g_assert_nonnull(task.question_filename);

5940

5941

task.func(task, queue);

5942

5943

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5944

5945

const task_context *const added_task = find_matching_task(queue,

5946

task);

5947

g_assert_nonnull(added_task);

5948

g_assert_cmpuint((unsigned int)password.length, ==, 0);

5949

g_assert_true(queue->next_run == 0);

5950

5951

g_assert_cmpint(added_task->fd, >, 0);

5952

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5953

EPOLLOUT));

5954

}

5955

5956

static

5957

void test_send_password_to_socket_EMSGSIZE(__attribute__((unused))

5958

test_fixture *fixture,

5959

__attribute__((unused))

5960

gconstpointer user_data){

5961

#ifndef __amd64__

5962

g_test_skip("Skipping EMSGSIZE test on non-AMD64 platform");

5963

#else

5964

__attribute__((cleanup(cleanup_close)))

5965

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5966

g_assert_cmpint(epoll_fd, >=, 0);

5967

const char question_filename[] = "/nonexistent/question";

5968

char *const filename = strdup("/nonexistent/socket");

5969

__attribute__((cleanup(string_set_clear)))

5970

string_set cancelled_filenames = {};

5971

const size_t oversized = 1024*1024; /* Limit seems to be 212960 */

5972

__attribute__((cleanup(cleanup_buffer)))

5973

buffer password = {

5974

.data=malloc(oversized),

5975

.length=oversized,

5976

.allocated=oversized,

5977

};

5978

g_assert_nonnull(password.data);

5979

if(mlock(password.data, password.allocated) != 0){

5980

g_assert_true(errno == EPERM or errno == ENOMEM);

5981

}

5982

/* Construct test password buffer */

5983

/* Start with + since that is what the real procotol uses */

5984

password.data[0] = '+';

5985

/* Set a special character at string end just to mark the end */

5986

password.data[oversized-3] = 'y';

5987

/* Set NUL at buffer end, as suggested by the protocol */

5988

password.data[oversized-2] = '\0';

5989

/* Fill rest of password with 'x' */

5990

memset(password.data+1, 'x', oversized-3);

5991

5992

__attribute__((cleanup(cleanup_queue)))

5993

task_queue *queue = create_queue();

5994

g_assert_nonnull(queue);

5995

int socketfds[2];

5996

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5997

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5998

socketfds), ==, 0);

5999

__attribute__((cleanup(cleanup_close)))

6000

const int read_socket = socketfds[0];

6001

__attribute__((cleanup(cleanup_close)))

6002

const int write_socket = socketfds[1];

6003

task_context task = {

6004

.func=send_password_to_socket,

6005

.question_filename=strdup(question_filename),

6006

.filename=filename,

6007

.epoll_fd=epoll_fd,

6008

.fd=write_socket,

6009

.password=&password,

6010

.cancelled_filenames=&cancelled_filenames,

6011

.mandos_client_exited=(bool[]){true},

6012

.password_is_read=(bool[]){true},

6013

.current_time=(mono_microsecs[]){0},

6014

};

6015

g_assert_nonnull(task.question_filename);

6016

6017

run_task_with_stderr_to_dev_null(task, queue);

6018

6019

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6020

g_assert_true(string_set_contains(cancelled_filenames,

6021

question_filename));

6022

#endif

6023

}

6024

6025

static void test_send_password_to_socket_retry(__attribute__((unused))

6026

test_fixture *fixture,

6027

__attribute__((unused))

6028

gconstpointer

6029

user_data){

6030

__attribute__((cleanup(cleanup_close)))

6031

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6032

g_assert_cmpint(epoll_fd, >=, 0);

6033

__attribute__((cleanup(cleanup_string)))

6034

char *const question_filename = strdup("/nonexistent/question");

6035

g_assert_nonnull(question_filename);

6036

__attribute__((cleanup(cleanup_string)))

6037

char *const filename = strdup("/nonexistent/socket");

6038

g_assert_nonnull(filename);

6039

__attribute__((cleanup(string_set_clear)))

6040

string_set cancelled_filenames = {};

6041

__attribute__((cleanup(cleanup_buffer)))

6042

buffer password = {};

6043

6044

__attribute__((cleanup(cleanup_queue)))

6045

task_queue *queue = create_queue();

6046

g_assert_nonnull(queue);

6047

int socketfds[2];

6048

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

6049

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

6050

socketfds), ==, 0);

6051

__attribute__((cleanup(cleanup_close)))

6052

const int read_socket = socketfds[0];

6053

const int write_socket = socketfds[1];

6054

/* Close the server side socket to force ECONNRESET on client */

6055

g_assert_cmpint(close(read_socket), ==, 0);

6056

task_context task = {

6057

.func=send_password_to_socket,

6058

.question_filename=strdup(question_filename),

6059

.filename=strdup(filename),

6060

.epoll_fd=epoll_fd,

6061

.fd=write_socket,

6062

.password=&password,

6063

.cancelled_filenames=&cancelled_filenames,

6064

.mandos_client_exited=(bool[]){true},

6065

.password_is_read=(bool[]){true},

6066

.current_time=(mono_microsecs[]){0},

6067

};

6068

g_assert_nonnull(task.question_filename);

6069

6070

task.func(task, queue);

6071

6072

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6073

6074

const task_context *const added_task = find_matching_task(queue,

6075

task);

6076

g_assert_nonnull(added_task);

6077

g_assert_cmpuint((unsigned int)password.length, ==, 0);

6078

6079

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

6080

EPOLLOUT));

6081

}

6082

6083

static

6084

void test_send_password_to_socket_bad_epoll(__attribute__((unused))

6085

test_fixture *fixture,

6086

__attribute__((unused))

6087

gconstpointer user_data){

6088

__attribute__((cleanup(cleanup_close)))

6089

const int epoll_fd = open("/dev/null",

6090

O_WRONLY | O_CLOEXEC | O_NOCTTY);

6091

__attribute__((cleanup(cleanup_string)))

6092

char *const question_filename = strdup("/nonexistent/question");

6093

g_assert_nonnull(question_filename);

6094

__attribute__((cleanup(cleanup_string)))

6095

char *const filename = strdup("/nonexistent/socket");

6096

g_assert_nonnull(filename);

6097

__attribute__((cleanup(string_set_clear)))

6098

string_set cancelled_filenames = {};

6099

__attribute__((cleanup(cleanup_buffer)))

6100

buffer password = {};

6101

6102

const mono_microsecs current_time = 11;

6103

__attribute__((cleanup(cleanup_queue)))

6104

task_queue *queue = create_queue();

6105

g_assert_nonnull(queue);

6106

int socketfds[2];

6107

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

6108

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

6109

socketfds), ==, 0);

6110

__attribute__((cleanup(cleanup_close)))

6111

const int read_socket = socketfds[0];

6112

const int write_socket = socketfds[1];

6113

/* Close the server side socket to force ECONNRESET on client */

6114

g_assert_cmpint(close(read_socket), ==, 0);

6115

task_context task = {

6116

.func=send_password_to_socket,

6117

.question_filename=strdup(question_filename),

6118

.filename=strdup(filename),

6119

.epoll_fd=epoll_fd,

6120

.fd=write_socket,

6121

.password=&password,

6122

.cancelled_filenames=&cancelled_filenames,

6123

.mandos_client_exited=(bool[]){true},

6124

.password_is_read=(bool[]){true},

6125

.current_time=&current_time,

6126

};

6127

g_assert_nonnull(task.question_filename);

6128

6129

run_task_with_stderr_to_dev_null(task, queue);

6130

6131

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6132

6133

const task_context *const added_task = find_matching_task(queue,

6134

task);

6135

g_assert_nonnull(added_task);

6136

g_assert_true(queue->next_run == current_time + 1000000);

6137

g_assert_cmpuint((unsigned int)password.length, ==, 0);

6138

}

6139

6140

static void assert_send_password_to_socket_password(buffer password){

6141

__attribute__((cleanup(cleanup_close)))

6142

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6143

g_assert_cmpint(epoll_fd, >=, 0);

6144

char *const question_filename = strdup("/nonexistent/question");

6145

g_assert_nonnull(question_filename);

6146

char *const filename = strdup("/nonexistent/socket");

6147

g_assert_nonnull(filename);

6148

__attribute__((cleanup(string_set_clear)))

6149

string_set cancelled_filenames = {};

6150

6151

__attribute__((cleanup(cleanup_queue)))

6152

task_queue *queue = create_queue();

6153

g_assert_nonnull(queue);

6154

int socketfds[2];

6155

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

6156

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

6157

socketfds), ==, 0);

6158

__attribute__((cleanup(cleanup_close)))

6159

const int read_socket = socketfds[0];

6160

const int write_socket = socketfds[1];

6161

task_context task = {

6162

.func=send_password_to_socket,

6163

.question_filename=question_filename,

6164

.filename=filename,

6165

.epoll_fd=epoll_fd,

6166

.fd=write_socket,

6167

.password=&password,

6168

.cancelled_filenames=&cancelled_filenames,

6169

.mandos_client_exited=(bool[]){true},

6170

.password_is_read=(bool[]){true},

6171

.current_time=(mono_microsecs[]){0},

6172

};

6173

6174

char *expected_written_data = malloc(password.length + 2);

6175

g_assert_nonnull(expected_written_data);

6176

expected_written_data[0] = '+';

6177

expected_written_data[password.length + 1] = '\0';

6178

if(password.length > 0){

6179

g_assert_nonnull(password.data);

6180

memcpy(expected_written_data + 1, password.data, password.length);

6181

}

6182

6183

task.func(task, queue);

6184

6185

char buf[PIPE_BUF];

6186

g_assert_cmpint((int)read(read_socket, buf, PIPE_BUF), ==,

6187

(int)(password.length + 2));

6188

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6189

6190

g_assert_true(memcmp(expected_written_data, buf,

6191

password.length + 2) == 0);

6192

6193

g_assert_true(epoll_set_does_not_contain(epoll_fd, write_socket));

6194

6195

free(expected_written_data);

6196

}

6197

6198

static void

6199

test_send_password_to_socket_null_password(__attribute__((unused))

6200

test_fixture *fixture,

6201

__attribute__((unused))

6202

gconstpointer user_data){

6203

__attribute__((cleanup(cleanup_buffer)))

6204

buffer password = {};

6205

assert_send_password_to_socket_password(password);

6206

}

6207

6208

static void

6209

test_send_password_to_socket_empty_password(__attribute__((unused))

6210

test_fixture *fixture,

6211

__attribute__((unused))

6212

gconstpointer user_data){

6213

__attribute__((cleanup(cleanup_buffer)))

6214

buffer password = {

6215

.data=malloc(1), /* because malloc(0) may return NULL */

6216

.length=0,

6217

.allocated=0, /* deliberate lie */

6218

};

6219

g_assert_nonnull(password.data);

6220

assert_send_password_to_socket_password(password);

6221

}

6222

6223

static void

6224

test_send_password_to_socket_empty_str_pass(__attribute__((unused))

6225

test_fixture *fixture,

6226

__attribute__((unused))

6227

gconstpointer user_data){

6228

__attribute__((cleanup(cleanup_buffer)))

6229

buffer password = {

6230

.data=strdup(""),

6231

.length=0,

6232

.allocated=1,

6233

};

6234

if(mlock(password.data, password.allocated) != 0){

6235

g_assert_true(errno == EPERM or errno == ENOMEM);

6236

}

6237

assert_send_password_to_socket_password(password);

6238

}

6239

6240

static void

6241

test_send_password_to_socket_text_password(__attribute__((unused))

6242

test_fixture *fixture,

6243

__attribute__((unused))

6244

gconstpointer user_data){

6245

const char dummy_test_password[] = "dummy test password";

6246

__attribute__((cleanup(cleanup_buffer)))

6247

buffer password = {

6248

.data = strdup(dummy_test_password),

6249

.length = strlen(dummy_test_password),

6250

.allocated = sizeof(dummy_test_password),

6251

};

6252

if(mlock(password.data, password.allocated) != 0){

6253

g_assert_true(errno == EPERM or errno == ENOMEM);

6254

}

6255

assert_send_password_to_socket_password(password);

6256

}

6257

6258

static void

6259

test_send_password_to_socket_binary_password(__attribute__((unused))

6260

test_fixture *fixture,

6261

__attribute__((unused))

6262

gconstpointer user_data){

6263

__attribute__((cleanup(cleanup_buffer)))

6264

buffer password = {

6265

.data=malloc(255),

6266

.length=255,

6267

.allocated=255,

6268

};

6269

g_assert_nonnull(password.data);

6270

if(mlock(password.data, password.allocated) != 0){

6271

g_assert_true(errno == EPERM or errno == ENOMEM);

6272

}

6273

char c = 1; /* Start at 1, avoiding NUL */

6274

for(int i=0; i < 255; i++){

6275

password.data[i] = c++;

6276

}

6277

assert_send_password_to_socket_password(password);

6278

}

6279

6280

static void

6281

test_send_password_to_socket_nuls_in_password(__attribute__((unused))

6282

test_fixture *fixture,

6283

__attribute__((unused))

6284

gconstpointer

6285

user_data){

6286

char test_password[] = {'\0', 'a', '\0', 'b', '\0', 'c', '\0'};

6287

__attribute__((cleanup(cleanup_buffer)))

6288

buffer password = {

6289

.data=malloc(sizeof(test_password)),

6290

.length=sizeof(test_password),

6291

.allocated=sizeof(test_password),

6292

};

6293

g_assert_nonnull(password.data);

6294

if(mlock(password.data, password.allocated) !=0){

6295

g_assert_true(errno == EPERM or errno == ENOMEM);

6296

}

6297

memcpy(password.data, test_password, password.allocated);

6298

assert_send_password_to_socket_password(password);

6299

}

6300

6301

static bool assert_add_existing_questions_to_devnull(task_queue

6302

*const,

6303

const int,

6304

buffer *const,

6305

string_set *,

6306

const

6307

mono_microsecs

6308

*const,

6309

bool *const,

6310

bool *const,

6311

const char

6312

*const);

6313

6314

static void test_add_existing_questions_ENOENT(__attribute__((unused))

6315

test_fixture *fixture,

6316

__attribute__((unused))

6317

gconstpointer

6318

user_data){

6319

__attribute__((cleanup(cleanup_queue)))

6320

task_queue *queue = create_queue();

6321

g_assert_nonnull(queue);

6322

__attribute__((cleanup(cleanup_close)))

6323

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6324

g_assert_cmpint(epoll_fd, >=, 0);

6325

__attribute__((cleanup(string_set_clear)))

6326

string_set cancelled_filenames = {};

6327

6328

g_assert_false(assert_add_existing_questions_to_devnull

6329

(queue,

6330

epoll_fd,

6331

(buffer[]){{}}, /* password */

6332

&cancelled_filenames,

6333

(mono_microsecs[]){0}, /* current_time */

6334

(bool[]){false}, /* mandos_client_exited */

6335

(bool[]){false}, /* password_is_read */

6336

"/nonexistent")); /* dirname */

6337

6338

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6339

}

6340

6341

static

6342

bool assert_add_existing_questions_to_devnull(task_queue

6343

*const queue,

6344

const int

6345

epoll_fd,

6346

buffer *const

6347

password,

6348

string_set

6349

*cancelled_filenames,

6350

const mono_microsecs

6351

*const current_time,

6352

bool *const

6353

mandos_client_exited,

6354

bool *const

6355

password_is_read,

6356

const char *const

6357

dirname){

6358

__attribute__((cleanup(cleanup_close)))

6359

const int devnull_fd = open("/dev/null",

6360

O_WRONLY | O_CLOEXEC | O_NOCTTY);

6361

g_assert_cmpint(devnull_fd, >=, 0);

6362

__attribute__((cleanup(cleanup_close)))

6363

const int real_stderr_fd = dup(STDERR_FILENO);

6364

g_assert_cmpint(real_stderr_fd, >=, 0);

6365

dup2(devnull_fd, STDERR_FILENO);

6366

const bool ret = add_existing_questions(queue, epoll_fd, password,

6367

cancelled_filenames,

6368

current_time,

6369

mandos_client_exited,

6370

password_is_read, dirname);

6371

dup2(real_stderr_fd, STDERR_FILENO);

6372

return ret;

6373

}

6374

6375

static

6376

void test_add_existing_questions_no_questions(__attribute__((unused))

6377

test_fixture *fixture,

6378

__attribute__((unused))

6379

gconstpointer

6380

user_data){

6381

__attribute__((cleanup(cleanup_queue)))

6382

task_queue *queue = create_queue();

6383

g_assert_nonnull(queue);

6384

__attribute__((cleanup(cleanup_close)))

6385

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6386

g_assert_cmpint(epoll_fd, >=, 0);

6387

__attribute__((cleanup(string_set_clear)))

6388

string_set cancelled_filenames = {};

6389

__attribute__((cleanup(cleanup_string)))

6390

char *tempdir = make_temporary_directory();

6391

g_assert_nonnull(tempdir);

6392

6393

g_assert_false(assert_add_existing_questions_to_devnull

6394

(queue,

6395

epoll_fd,

6396

(buffer[]){{}}, /* password */

6397

&cancelled_filenames,

6398

(mono_microsecs[]){0}, /* current_time */

6399

(bool[]){false}, /* mandos_client_exited */

6400

(bool[]){false}, /* password_is_read */

6401

tempdir));

6402

6403

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6404

6405

g_assert_cmpint(rmdir(tempdir), ==, 0);

6406

}

6407

6408

static char *make_question_file_in_directory(const char *const);

6409

6410

static

6411

void test_add_existing_questions_one_question(__attribute__((unused))

6412

test_fixture *fixture,

6413

__attribute__((unused))

6414

gconstpointer

6415

user_data){

6416

__attribute__((cleanup(cleanup_queue)))

6417

task_queue *queue = create_queue();

6418

g_assert_nonnull(queue);

6419

__attribute__((cleanup(cleanup_close)))

6420

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6421

g_assert_cmpint(epoll_fd, >=, 0);

6422

__attribute__((cleanup(cleanup_buffer)))

6423

buffer password = {};

6424

__attribute__((cleanup(string_set_clear)))

6425

string_set cancelled_filenames = {};

6426

const mono_microsecs current_time = 0;

6427

bool mandos_client_exited = false;

6428

bool password_is_read = false;

6429

__attribute__((cleanup(cleanup_string)))

6430

char *tempdir = make_temporary_directory();

6431

g_assert_nonnull(tempdir);

6432

__attribute__((cleanup(cleanup_string)))

6433

char *question_filename

6434

= make_question_file_in_directory(tempdir);

6435

g_assert_nonnull(question_filename);

6436

6437

g_assert_true(assert_add_existing_questions_to_devnull

6438

(queue,

6439

epoll_fd,

6440

&password,

6441

&cancelled_filenames,

6442

&current_time,

6443

&mandos_client_exited,

6444

&password_is_read,

6445

tempdir));

6446

6447

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6448

6449

g_assert_nonnull(find_matching_task(queue, (task_context){

6450

.func=open_and_parse_question,

6451

.epoll_fd=epoll_fd,

6452

.filename=question_filename,

6453

.question_filename=question_filename,

6454

.password=&password,

6455

.cancelled_filenames=&cancelled_filenames,

6456

.current_time=&current_time,

6457

.mandos_client_exited=&mandos_client_exited,

6458

.password_is_read=&password_is_read,

6459

}));

6460

6461

g_assert_true(queue->next_run == 1);

6462

6463

g_assert_cmpint(unlink(question_filename), ==, 0);

6464

g_assert_cmpint(rmdir(tempdir), ==, 0);

6465

}

6466

6467

static char *make_question_file_in_directory(const char

6468

*const dir){

6469

return make_temporary_prefixed_file_in_directory("ask.", dir);

6470

}

6471

6472

static

6473

void test_add_existing_questions_two_questions(__attribute__((unused))

6474

test_fixture *fixture,

6475

__attribute__((unused))

6476

gconstpointer

6477

user_data){

6478

__attribute__((cleanup(cleanup_queue)))

6479

task_queue *queue = create_queue();

6480

g_assert_nonnull(queue);

6481

__attribute__((cleanup(cleanup_close)))

6482

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6483

g_assert_cmpint(epoll_fd, >=, 0);

6484

__attribute__((cleanup(cleanup_buffer)))

6485

buffer password = {};

6486

__attribute__((cleanup(string_set_clear)))

6487

string_set cancelled_filenames = {};

6488

const mono_microsecs current_time = 0;

6489

bool mandos_client_exited = false;

6490

bool password_is_read = false;

6491

__attribute__((cleanup(cleanup_string)))

6492

char *tempdir = make_temporary_directory();

6493

g_assert_nonnull(tempdir);

6494

__attribute__((cleanup(cleanup_string)))

6495

char *question_filename1

6496

= make_question_file_in_directory(tempdir);

6497

g_assert_nonnull(question_filename1);

6498

__attribute__((cleanup(cleanup_string)))

6499

char *question_filename2

6500

= make_question_file_in_directory(tempdir);

6501

g_assert_nonnull(question_filename2);

6502

6503

g_assert_true(assert_add_existing_questions_to_devnull

6504

(queue,

6505

epoll_fd,

6506

&password,

6507

&cancelled_filenames,

6508

&current_time,

6509

&mandos_client_exited,

6510

&password_is_read,

6511

tempdir));

6512

6513

g_assert_cmpuint((unsigned int)queue->length, ==, 2);

6514

6515

g_assert_true(queue->next_run == 1);

6516

6517

__attribute__((cleanup(string_set_clear)))

6518

string_set seen_questions = {};

6519

6520

bool queue_contains_question_opener(char *const question_filename){

6521

return(find_matching_task(queue, (task_context){

6522

.func=open_and_parse_question,

6523

.epoll_fd=epoll_fd,

6524

.question_filename=question_filename,

6525

.password=&password,

6526

.cancelled_filenames=&cancelled_filenames,

6527

.current_time=&current_time,

6528

.mandos_client_exited=&mandos_client_exited,

6529

.password_is_read=&password_is_read,

6530

}) != NULL);

6531

}

6532

6533

g_assert_true(queue_contains_question_opener(question_filename1));

6534

g_assert_true(queue_contains_question_opener(question_filename2));

6535

6536

g_assert_true(queue->next_run == 1);

6537

6538

g_assert_cmpint(unlink(question_filename1), ==, 0);

6539

g_assert_cmpint(unlink(question_filename2), ==, 0);

6540

g_assert_cmpint(rmdir(tempdir), ==, 0);

6541

}

6542

6543

static void

6544

test_add_existing_questions_non_questions(__attribute__((unused))

6545

test_fixture *fixture,

6546

__attribute__((unused))

6547

gconstpointer user_data){

6548

__attribute__((cleanup(cleanup_queue)))

6549

task_queue *queue = create_queue();

6550

g_assert_nonnull(queue);

6551

__attribute__((cleanup(cleanup_close)))

6552

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6553

g_assert_cmpint(epoll_fd, >=, 0);

6554

__attribute__((cleanup(string_set_clear)))

6555

string_set cancelled_filenames = {};

6556

__attribute__((cleanup(cleanup_string)))

6557

char *tempdir = make_temporary_directory();

6558

g_assert_nonnull(tempdir);

6559

__attribute__((cleanup(cleanup_string)))

6560

char *question_filename1

6561

= make_temporary_file_in_directory(tempdir);

6562

g_assert_nonnull(question_filename1);

6563

__attribute__((cleanup(cleanup_string)))

6564

char *question_filename2

6565

= make_temporary_file_in_directory(tempdir);

6566

g_assert_nonnull(question_filename2);

6567

6568

g_assert_false(assert_add_existing_questions_to_devnull

6569

(queue,

6570

epoll_fd,

6571

(buffer[]){{}}, /* password */

6572

&cancelled_filenames,

6573

(mono_microsecs[]){0}, /* current_time */

6574

(bool[]){false}, /* mandos_client_exited */

6575

(bool[]){false}, /* password_is_read */

6576

tempdir));

6577

6578

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6579

6580

g_assert_cmpint(unlink(question_filename1), ==, 0);

6581

g_assert_cmpint(unlink(question_filename2), ==, 0);

6582

g_assert_cmpint(rmdir(tempdir), ==, 0);

6583

}

6584

6585

static void

6586

test_add_existing_questions_both_types(__attribute__((unused))

6587

test_fixture *fixture,

6588

__attribute__((unused))

6589

gconstpointer user_data){

6590

__attribute__((cleanup(cleanup_queue)))

6591

task_queue *queue = create_queue();

6592

g_assert_nonnull(queue);

6593

__attribute__((cleanup(cleanup_close)))

6594

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6595

g_assert_cmpint(epoll_fd, >=, 0);

6596

__attribute__((cleanup(cleanup_buffer)))

6597

buffer password = {};

6598

__attribute__((cleanup(string_set_clear)))

6599

string_set cancelled_filenames = {};

6600

const mono_microsecs current_time = 0;

6601

bool mandos_client_exited = false;

6602

bool password_is_read = false;

6603

__attribute__((cleanup(cleanup_string)))

6604

char *tempdir = make_temporary_directory();

6605

g_assert_nonnull(tempdir);

6606

__attribute__((cleanup(cleanup_string)))

6607

char *tempfilename1 = make_temporary_file_in_directory(tempdir);

6608

g_assert_nonnull(tempfilename1);

6609

__attribute__((cleanup(cleanup_string)))

6610

char *tempfilename2 = make_temporary_file_in_directory(tempdir);

6611

g_assert_nonnull(tempfilename2);

6612

__attribute__((cleanup(cleanup_string)))

6613

char *question_filename

6614

= make_question_file_in_directory(tempdir);

6615

g_assert_nonnull(question_filename);

6616

6617

g_assert_true(assert_add_existing_questions_to_devnull

6618

(queue,

6619

epoll_fd,

6620

&password,

6621

&cancelled_filenames,

6622

&current_time,

6623

&mandos_client_exited,

6624

&password_is_read,

6625

tempdir));

6626

6627

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6628

6629

g_assert_nonnull(find_matching_task(queue, (task_context){

6630

.func=open_and_parse_question,

6631

.epoll_fd=epoll_fd,

6632

.filename=question_filename,

6633

.question_filename=question_filename,

6634

.password=&password,

6635

.cancelled_filenames=&cancelled_filenames,

6636

.current_time=&current_time,

6637

.mandos_client_exited=&mandos_client_exited,

6638

.password_is_read=&password_is_read,

6639

}));

6640

6641

g_assert_true(queue->next_run == 1);

6642

6643

g_assert_cmpint(unlink(tempfilename1), ==, 0);

6644

g_assert_cmpint(unlink(tempfilename2), ==, 0);

6645

g_assert_cmpint(unlink(question_filename), ==, 0);

6646

g_assert_cmpint(rmdir(tempdir), ==, 0);

6647

}

6648

6649

static void test_wait_for_event_timeout(__attribute__((unused))

6650

test_fixture *fixture,

6651

__attribute__((unused))

6652

gconstpointer user_data){

6653

__attribute__((cleanup(cleanup_close)))

6654

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6655

g_assert_cmpint(epoll_fd, >=, 0);

6656

6657

g_assert_true(wait_for_event(epoll_fd, 1, 0));

6658

}

6659

6660

static void test_wait_for_event_event(__attribute__((unused))

6661

test_fixture *fixture,

6662

__attribute__((unused))

6663

gconstpointer user_data){

6664

__attribute__((cleanup(cleanup_close)))

6665

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6666

g_assert_cmpint(epoll_fd, >=, 0);

6667

int pipefds[2];

6668

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

6669

__attribute__((cleanup(cleanup_close)))

6670

const int read_pipe = pipefds[0];

6671

__attribute__((cleanup(cleanup_close)))

6672

const int write_pipe = pipefds[1];

6673

g_assert_cmpint(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, read_pipe,

6674

&(struct epoll_event)

6675

{ .events=EPOLLIN | EPOLLRDHUP }), ==, 0);

6676

g_assert_cmpint((int)write(write_pipe, "x", 1), ==, 1);

6677

6678

g_assert_true(wait_for_event(epoll_fd, 0, 0));

6679

}

6680

6681

static void test_wait_for_event_sigchld(test_fixture *fixture,

6682

__attribute__((unused))

6683

gconstpointer user_data){

6684

const pid_t pid = fork();

6685

if(pid == 0){ /* Child */

6686

if(not restore_signal_handler(&fixture->orig_sigaction)){

6687

_exit(EXIT_FAILURE);

6688

}

6689

if(not restore_sigmask(&fixture->orig_sigmask)){

6690

_exit(EXIT_FAILURE);

6691

}

6692

exit(EXIT_SUCCESS);

6693

}

6694

g_assert_true(pid != -1);

6695

__attribute__((cleanup(cleanup_close)))

6696

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6697

g_assert_cmpint(epoll_fd, >=, 0);

6698

6699

g_assert_true(wait_for_event(epoll_fd, 0, 0));

6700

6701

int status;

6702

g_assert_true(waitpid(pid, &status, 0) == pid);

6703

g_assert_true(WIFEXITED(status));

6704

g_assert_cmpint(WEXITSTATUS(status), ==, EXIT_SUCCESS);

6705

}

6706

6707

static void test_run_queue_zeroes_next_run(__attribute__((unused))

6708

test_fixture *fixture,

6709

__attribute__((unused))

6710

gconstpointer user_data){

6711

__attribute__((cleanup(cleanup_queue)))

6712

task_queue *queue = create_queue();

6713

g_assert_nonnull(queue);

6714

queue->next_run = 1;

6715

__attribute__((cleanup(cleanup_close)))

6716

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6717

__attribute__((cleanup(string_set_clear)))

6718

string_set cancelled_filenames = {};

6719

bool quit_now = false;

6720

6721

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6722

g_assert_false(quit_now);

6723

g_assert_cmpuint((unsigned int)queue->next_run, ==, 0);

6724

}

6725

6726

static

6727

void test_run_queue_clears_cancelled_filenames(__attribute__((unused))

6728

test_fixture *fixture,

6729

__attribute__((unused))

6730

gconstpointer

6731

user_data){

6732

__attribute__((cleanup(cleanup_queue)))

6733

task_queue *queue = create_queue();

6734

g_assert_nonnull(queue);

6735

__attribute__((cleanup(string_set_clear)))

6736

string_set cancelled_filenames = {};

6737

bool quit_now = false;

6738

const char question_filename[] = "/nonexistent/question_filename";

6739

g_assert_true(string_set_add(&cancelled_filenames,

6740

question_filename));

6741

6742

g_assert_true(add_to_queue(queue,

6743

(task_context){ .func=dummy_func }));

6744

6745

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6746

g_assert_false(quit_now);

6747

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6748

g_assert_false(string_set_contains(cancelled_filenames,

6749

question_filename));

6750

}

6751

6752

static

6753

void test_run_queue_skips_cancelled_filenames(__attribute__((unused))

6754

test_fixture *fixture,

6755

__attribute__((unused))

6756

gconstpointer

6757

user_data){

6758

__attribute__((cleanup(cleanup_queue)))

6759

task_queue *queue = create_queue();

6760

g_assert_nonnull(queue);

6761

__attribute__((cleanup(string_set_clear)))

6762

string_set cancelled_filenames = {};

6763

bool quit_now = false;

6764

int pipefds[2];

6765

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

6766

__attribute__((cleanup(cleanup_close)))

6767

const int read_pipe = pipefds[0];

6768

g_assert_cmpint(close(pipefds[1]), ==, 0);

6769

const char question_filename[] = "/nonexistent/question_filename";

6770

g_assert_true(string_set_add(&cancelled_filenames,

6771

question_filename));

6772

__attribute__((nonnull))

6773

void quit_func(const task_context task,

6774

__attribute__((unused)) task_queue *const q){

6775

g_assert_nonnull(task.quit_now);

6776

*task.quit_now = true;

6777

}

6778

task_context task = {

6779

.func=quit_func,

6780

.question_filename=strdup(question_filename),

6781

.quit_now=&quit_now,

6782

.fd=read_pipe,

6783

};

6784

g_assert_nonnull(task.question_filename);

6785

6786

g_assert_true(add_to_queue(queue, task));

6787

6788

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6789

g_assert_false(quit_now);

6790

6791

/* read_pipe should be closed already */

6792

errno = 0;

6793

bool read_pipe_closed = (close(read_pipe) == -1);

6794

read_pipe_closed &= (errno == EBADF);

6795

g_assert_true(read_pipe_closed);

6796

}

6797

6798

static void test_run_queue_one_task(__attribute__((unused))

6799

test_fixture *fixture,

6800

__attribute__((unused))

6801

gconstpointer user_data){

6802

__attribute__((cleanup(cleanup_queue)))

6803

task_queue *queue = create_queue();

6804

g_assert_nonnull(queue);

6805

__attribute__((cleanup(string_set_clear)))

6806

string_set cancelled_filenames = {};

6807

bool quit_now = false;

6808

6809

__attribute__((nonnull))

6810

void next_run_func(__attribute__((unused))

6811

const task_context task,

6812

task_queue *const q){

6813

q->next_run = 1;

6814

}

6815

6816

task_context task = {

6817

.func=next_run_func,

6818

};

6819

g_assert_true(add_to_queue(queue, task));

6820

6821

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6822

g_assert_cmpuint((unsigned int)(queue->next_run), ==, 1);

6823

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6824

}

6825

6826

static void test_run_queue_two_tasks(__attribute__((unused))

6827

test_fixture *fixture,

6828

__attribute__((unused))

6829

gconstpointer user_data){

6830

__attribute__((cleanup(cleanup_queue)))

6831

task_queue *queue = create_queue();

6832

g_assert_nonnull(queue);

6833

queue->next_run = 1;

6834

__attribute__((cleanup(string_set_clear)))

6835

string_set cancelled_filenames = {};

6836

bool quit_now = false;

6837

bool mandos_client_exited = false;

6838

6839

__attribute__((nonnull))

6840

void next_run_func(__attribute__((unused))

6841

const task_context task,

6842

task_queue *const q){

6843

q->next_run = 1;

6844

}

6845

6846

__attribute__((nonnull))

6847

void exited_func(const task_context task,

6848

__attribute__((unused)) task_queue *const q){

6849

*task.mandos_client_exited = true;

6850

}

6851

6852

task_context task1 = {

6853

.func=next_run_func,

6854

};

6855

g_assert_true(add_to_queue(queue, task1));

6856

6857

task_context task2 = {

6858

.func=exited_func,

6859

.mandos_client_exited=&mandos_client_exited,

6860

};

6861

g_assert_true(add_to_queue(queue, task2));

6862

6863

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6864

g_assert_false(quit_now);

6865

g_assert_cmpuint((unsigned int)(queue->next_run), ==, 1);

6866

g_assert_true(mandos_client_exited);

6867

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6868

}

6869

6870

static void test_run_queue_two_tasks_quit(__attribute__((unused))

6871

test_fixture *fixture,

6872

__attribute__((unused))

6873

gconstpointer user_data){

6874

__attribute__((cleanup(cleanup_queue)))

6875

task_queue *queue = create_queue();

6876

g_assert_nonnull(queue);

6877

__attribute__((cleanup(string_set_clear)))

6878

string_set cancelled_filenames = {};

6879

bool quit_now = false;

6880

bool mandos_client_exited = false;

6881

bool password_is_read = false;

6882

6883

__attribute__((nonnull))

6884

void set_exited_func(const task_context task,

6885

__attribute__((unused)) task_queue *const q){

6886

*task.mandos_client_exited = true;

6887

*task.quit_now = true;

6888

}

6889

task_context task1 = {

6890

.func=set_exited_func,

6891

.quit_now=&quit_now,

6892

.mandos_client_exited=&mandos_client_exited,

6893

};

6894

g_assert_true(add_to_queue(queue, task1));

6895

6896

__attribute__((nonnull))

6897

void set_read_func(const task_context task,

6898

__attribute__((unused)) task_queue *const q){

6899

*task.quit_now = true;

6900

*task.password_is_read = true;

6901

}

6902

task_context task2 = {

6903

.func=set_read_func,

6904

.quit_now=&quit_now,

6905

.password_is_read=&password_is_read,

6906

};

6907

g_assert_true(add_to_queue(queue, task2));

6908

6909

g_assert_false(run_queue(&queue, &cancelled_filenames, &quit_now));

6910

g_assert_true(quit_now);

6911

g_assert_true(mandos_client_exited xor password_is_read);

6912

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6913

}

6914

6915

static void test_run_queue_two_tasks_cleanup(__attribute__((unused))

6916

test_fixture *fixture,

6917

__attribute__((unused))

6918

gconstpointer user_data){

6919

__attribute__((cleanup(cleanup_queue)))

6920

task_queue *queue = create_queue();

6921

g_assert_nonnull(queue);

6922

__attribute__((cleanup(string_set_clear)))

6923

string_set cancelled_filenames = {};

6924

int pipefds[2];

6925

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

6926

__attribute__((cleanup(cleanup_close)))

6927

const int read_pipe = pipefds[0];

6928

__attribute__((cleanup(cleanup_close)))

6929

const int write_pipe = pipefds[1];

6930

bool quit_now = false;

6931

6932

__attribute__((nonnull))

6933

void read_func(const task_context task,

6934

__attribute__((unused)) task_queue *const q){

6935

*task.quit_now = true;

6936

}

6937

task_context task1 = {

6938

.func=read_func,

6939

.quit_now=&quit_now,

6940

.fd=read_pipe,

6941

};

6942

g_assert_true(add_to_queue(queue, task1));

6943

6944

__attribute__((nonnull))

6945

void write_func(const task_context task,

6946

__attribute__((unused)) task_queue *const q){

6947

*task.quit_now = true;

6948

}

6949

task_context task2 = {

6950

.func=write_func,

6951

.quit_now=&quit_now,

6952

.fd=write_pipe,

6953

};

6954

g_assert_true(add_to_queue(queue, task2));

6955

6956

g_assert_false(run_queue(&queue, &cancelled_filenames, &quit_now));

6957

g_assert_true(quit_now);

6958

6959

/* Either read_pipe or write_pipe should be closed already */

6960

errno = 0;

6961

bool close_read_pipe = (close(read_pipe) == -1);

6962

close_read_pipe &= (errno == EBADF);

6963

errno = 0;

6964

bool close_write_pipe = (close(write_pipe) == -1);

6965

close_write_pipe &= (errno == EBADF);

6966

g_assert_true(close_read_pipe xor close_write_pipe);

6967

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6968

}

6969

6970

static void test_setup_signal_handler(__attribute__((unused))

6971

test_fixture *fixture,

6972

__attribute__((unused))

6973

gconstpointer user_data){

6974

/* Save current SIGCHLD action, whatever it is */

6975

struct sigaction expected_sigchld_action;

6976

g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),

6977

==, 0);

6978

6979

/* Act; i.e. run the setup_signal_handler() function */

6980

struct sigaction actual_old_sigchld_action;

6981

g_assert_true(setup_signal_handler(&actual_old_sigchld_action));

6982

6983

/* Check that the function correctly set "actual_old_sigchld_action"

6984

to the same values as the previously saved

6985

"expected_sigchld_action" */

6986

/* Check member sa_handler */

6987

g_assert_true(actual_old_sigchld_action.sa_handler

6988

== expected_sigchld_action.sa_handler);

6989

/* Check member sa_mask */

6990

for(int signum = 1; signum < NSIG; signum++){

6991

const int expected_old_block_state

6992

= sigismember(&expected_sigchld_action.sa_mask, signum);

6993

g_assert_cmpint(expected_old_block_state, >=, 0);

6994

const int actual_old_block_state

6995

= sigismember(&actual_old_sigchld_action.sa_mask, signum);

6996

g_assert_cmpint(actual_old_block_state, >=, 0);

6997

g_assert_cmpint(actual_old_block_state,

6998

==, expected_old_block_state);

6999

}

7000

/* Check member sa_flags */

7001

g_assert_true((actual_old_sigchld_action.sa_flags

7002

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

7003

== (expected_sigchld_action.sa_flags

7004

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));

7005

7006

/* Retrieve the current signal handler for SIGCHLD as set by

7007

setup_signal_handler() */

7008

struct sigaction actual_new_sigchld_action;

7009

g_assert_cmpint(sigaction(SIGCHLD, NULL,

7010

&actual_new_sigchld_action), ==, 0);

7011

/* Check that the signal handler (member sa_handler) is correctly

7012

set to the "handle_sigchld" function */

7013

g_assert_true(actual_new_sigchld_action.sa_handler != SIG_DFL);

7014

g_assert_true(actual_new_sigchld_action.sa_handler != SIG_IGN);

7015

g_assert_true(actual_new_sigchld_action.sa_handler

7016

== handle_sigchld);

7017

/* Check (in member sa_mask) that at least a handful of signals are

7018

actually blocked during the signal handler */

7019

for(int signum = 1; signum < NSIG; signum++){

7020

int actual_new_block_state;

7021

switch(signum){

7022

case SIGTERM:

7023

case SIGINT:

7024

case SIGQUIT:

7025

case SIGHUP:

7026

actual_new_block_state

7027

= sigismember(&actual_new_sigchld_action.sa_mask, signum);

7028

g_assert_cmpint(actual_new_block_state, ==, 1);

7029

continue;

7030

case SIGKILL: /* non-blockable */

7031

case SIGSTOP: /* non-blockable */

7032

case SIGCHLD: /* always blocked */

7033

default:

7034

continue;

7035

}

7036

}

7037

/* Check member sa_flags */

7038

g_assert_true((actual_new_sigchld_action.sa_flags

7039

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

7040

== (SA_NOCLDSTOP | SA_RESTART));

7041

7042

/* Restore signal handler */

7043

g_assert_cmpint(sigaction(SIGCHLD, &expected_sigchld_action, NULL),

7044

==, 0);

7045

}

7046

7047

static void test_restore_signal_handler(__attribute__((unused))

7048

test_fixture *fixture,

7049

__attribute__((unused))

7050

gconstpointer user_data){

7051

/* Save current SIGCHLD action, whatever it is */

7052

struct sigaction expected_sigchld_action;

7053

g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),

7054

==, 0);

7055

/* Since we haven't established a signal handler yet, there should

7056

not be one established. But another test may have relied on

7057

restore_signal_handler() to restore the signal handler, and if

7058

restore_signal_handler() is buggy (which we should be prepared

7059

for in this test) the signal handler may not have been restored

7060

properly; check for this: */

7061

g_assert_true(expected_sigchld_action.sa_handler != handle_sigchld);

7062

7063

/* Establish a signal handler */

7064

struct sigaction sigchld_action = {

7065

.sa_handler=handle_sigchld,

7066

.sa_flags=SA_RESTART | SA_NOCLDSTOP,

7067

};

7068

g_assert_cmpint(sigfillset(&sigchld_action.sa_mask), ==, 0);

7069

g_assert_cmpint(sigaction(SIGCHLD, &sigchld_action, NULL), ==, 0);

7070

7071

/* Act; i.e. run the restore_signal_handler() function */

7072

g_assert_true(restore_signal_handler(&expected_sigchld_action));

7073

7074

/* Retrieve the restored signal handler data */

7075

struct sigaction actual_restored_sigchld_action;

7076

g_assert_cmpint(sigaction(SIGCHLD, NULL,

7077

&actual_restored_sigchld_action), ==, 0);

7078

7079

/* Check that the function correctly restored the signal action, as

7080

saved in "actual_restored_sigchld_action", to the same values as

7081

the previously saved "expected_sigchld_action" */

7082

/* Check member sa_handler */

7083

g_assert_true(actual_restored_sigchld_action.sa_handler

7084

== expected_sigchld_action.sa_handler);

7085

/* Check member sa_mask */

7086

for(int signum = 1; signum < NSIG; signum++){

7087

const int expected_old_block_state

7088

= sigismember(&expected_sigchld_action.sa_mask, signum);

7089

g_assert_cmpint(expected_old_block_state, >=, 0);

7090

const int actual_restored_block_state

7091

= sigismember(&actual_restored_sigchld_action.sa_mask, signum);

7092

g_assert_cmpint(actual_restored_block_state, >=, 0);

7093

g_assert_cmpint(actual_restored_block_state,

7094

==, expected_old_block_state);

7095

}

7096

/* Check member sa_flags */

7097

g_assert_true((actual_restored_sigchld_action.sa_flags

7098

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

7099

== (expected_sigchld_action.sa_flags

7100

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));

7101

}

7102

7103

static void test_block_sigchld(__attribute__((unused))

7104

test_fixture *fixture,

7105

__attribute__((unused))

7106

gconstpointer user_data){

7107

/* Save original signal mask */

7108

sigset_t expected_sigmask;

7109

g_assert_cmpint(pthread_sigmask(-1, NULL, &expected_sigmask),

7110

==, 0);

7111

7112

/* Make sure SIGCHLD is unblocked for this test */

7113

sigset_t sigchld_sigmask;

7114

g_assert_cmpint(sigemptyset(&sigchld_sigmask), ==, 0);

7115

g_assert_cmpint(sigaddset(&sigchld_sigmask, SIGCHLD), ==, 0);

7116

g_assert_cmpint(pthread_sigmask(SIG_UNBLOCK, &sigchld_sigmask,

7117

NULL), ==, 0);

7118

7119

/* Act; i.e. run the block_sigchld() function */

7120

sigset_t actual_old_sigmask;

7121

g_assert_true(block_sigchld(&actual_old_sigmask));

7122

7123

/* Check the actual_old_sigmask; it should be the same as the

7124

previously saved signal mask "expected_sigmask". */

7125

for(int signum = 1; signum < NSIG; signum++){

7126

const int expected_old_block_state

7127

= sigismember(&expected_sigmask, signum);

7128

g_assert_cmpint(expected_old_block_state, >=, 0);

7129

const int actual_old_block_state

7130

= sigismember(&actual_old_sigmask, signum);

7131

g_assert_cmpint(actual_old_block_state, >=, 0);

7132

g_assert_cmpint(actual_old_block_state,

7133

==, expected_old_block_state);

7134

}

7135

7136

/* Retrieve the newly set signal mask */

7137

sigset_t actual_sigmask;

7138

g_assert_cmpint(pthread_sigmask(-1, NULL, &actual_sigmask), ==, 0);

7139

7140

/* SIGCHLD should be blocked */

7141

g_assert_cmpint(sigismember(&actual_sigmask, SIGCHLD), ==, 1);

7142

7143

/* Restore signal mask */

7144

g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &expected_sigmask,

7145

NULL), ==, 0);

7146

}

7147

7148

static void test_restore_sigmask(__attribute__((unused))

7149

test_fixture *fixture,

7150

__attribute__((unused))

7151

gconstpointer user_data){

7152

/* Save original signal mask */

7153

sigset_t orig_sigmask;

7154

g_assert_cmpint(pthread_sigmask(-1, NULL, &orig_sigmask), ==, 0);

7155

7156

/* Make sure SIGCHLD is blocked for this test */

7157

sigset_t sigchld_sigmask;

7158

g_assert_cmpint(sigemptyset(&sigchld_sigmask), ==, 0);

7159

g_assert_cmpint(sigaddset(&sigchld_sigmask, SIGCHLD), ==, 0);

7160

g_assert_cmpint(pthread_sigmask(SIG_BLOCK, &sigchld_sigmask,

7161

NULL), ==, 0);

7162

7163

/* Act; i.e. run the restore_sigmask() function */

7164

g_assert_true(restore_sigmask(&orig_sigmask));

7165

7166

/* Retrieve the newly restored signal mask */

7167

sigset_t restored_sigmask;

7168

g_assert_cmpint(pthread_sigmask(-1, NULL, &restored_sigmask),

7169

==, 0);

7170

7171

/* Check the restored_sigmask; it should be the same as the

7172

previously saved signal mask "orig_sigmask". */

7173

for(int signum = 1; signum < NSIG; signum++){

7174

const int orig_block_state = sigismember(&orig_sigmask, signum);

7175

g_assert_cmpint(orig_block_state, >=, 0);

7176

const int restored_block_state = sigismember(&restored_sigmask,

7177

signum);

7178

g_assert_cmpint(restored_block_state, >=, 0);

7179

g_assert_cmpint(restored_block_state, ==, orig_block_state);

7180

}

7181

7182

/* Restore signal mask */

7183

g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &orig_sigmask,

7184

NULL), ==, 0);

7185

}

7186

7187

static void test_parse_arguments_noargs(__attribute__((unused))

7188

test_fixture *fixture,

7189

__attribute__((unused))

7190

gconstpointer user_data){

7191

char *argv[] = {

7192

strdup("prgname"),

7193

NULL };

7194

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7195

7196

char *agent_directory = NULL;

7197

char *helper_directory = NULL;

7198

uid_t user = 0;

7199

gid_t group = 0;

7200

char *mandos_argz = NULL;

7201

size_t mandos_argz_length = 0;

7202

7203

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7204

&helper_directory, &user, &group,

7205

&mandos_argz, &mandos_argz_length));

7206

g_assert_null(agent_directory);

7207

g_assert_null(helper_directory);

7208

g_assert_true(user == 0);

7209

g_assert_true(group == 0);

7210

g_assert_null(mandos_argz);

7211

g_assert_true(mandos_argz_length == 0);

7212

7213

for(char **arg = argv; *arg != NULL; arg++){

7214

free(*arg);

7215

}

7216

}

7217

7218

__attribute__((nonnull))

7219

static bool parse_arguments_devnull(int argc, char *argv[],

7220

const bool exit_failure,

7221

char **agent_directory,

7222

char **helper_directory,

7223

uid_t *const user,

7224

gid_t *const group,

7225

char **mandos_argz,

7226

size_t *mandos_argz_length){

7227

7228

FILE *real_stderr = stderr;

7229

FILE *devnull = fopen("/dev/null", "we");

7230

g_assert_nonnull(devnull);

7231

stderr = devnull;

7232

7233

const bool ret = parse_arguments(argc, argv, exit_failure,

7234

agent_directory,

7235

helper_directory, user, group,

7236

mandos_argz, mandos_argz_length);

7237

const error_t saved_errno = errno;

7238

7239

stderr = real_stderr;

7240

g_assert_cmpint(fclose(devnull), ==, 0);

7241

7242

errno = saved_errno;

7243

7244

return ret;

7245

}

7246

7247

static void test_parse_arguments_invalid(__attribute__((unused))

7248

test_fixture *fixture,

7249

__attribute__((unused))

7250

gconstpointer user_data){

7251

char *argv[] = {

7252

strdup("prgname"),

7253

strdup("--invalid"),

7254

NULL };

7255

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7256

7257

char *agent_directory = NULL;

7258

char *helper_directory = NULL;

7259

uid_t user = 0;

7260

gid_t group = 0;

7261

char *mandos_argz = NULL;

7262

size_t mandos_argz_length = 0;

7263

7264

g_assert_false(parse_arguments_devnull(argc, argv, false,

7265

&agent_directory,

7266

&helper_directory, &user,

7267

&group, &mandos_argz,

7268

&mandos_argz_length));

7269

7270

g_assert_true(errno == EINVAL);

7271

g_assert_null(agent_directory);

7272

g_assert_null(helper_directory);

7273

g_assert_null(mandos_argz);

7274

g_assert_true(mandos_argz_length == 0);

7275

7276

for(char **arg = argv; *arg != NULL; arg++){

7277

free(*arg);

7278

}

7279

}

7280

7281

static void test_parse_arguments_long_dir(__attribute__((unused))

7282

test_fixture *fixture,

7283

__attribute__((unused))

7284

gconstpointer user_data){

7285

char *argv[] = {

7286

strdup("prgname"),

7287

strdup("--agent-directory"),

7288

strdup("/tmp"),

7289

NULL };

7290

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7291

7292

__attribute__((cleanup(cleanup_string)))

7293

char *agent_directory = NULL;

7294

char *helper_directory = NULL;

7295

uid_t user = 0;

7296

gid_t group = 0;

7297

__attribute__((cleanup(cleanup_string)))

7298

char *mandos_argz = NULL;

7299

size_t mandos_argz_length = 0;

7300

7301

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7302

&helper_directory, &user, &group,

7303

&mandos_argz, &mandos_argz_length));

7304

7305

g_assert_cmpstr(agent_directory, ==, "/tmp");

7306

g_assert_null(helper_directory);

7307

g_assert_true(user == 0);

7308

g_assert_true(group == 0);

7309

g_assert_null(mandos_argz);

7310

g_assert_true(mandos_argz_length == 0);

7311

7312

for(char **arg = argv; *arg != NULL; arg++){

7313

free(*arg);

7314

}

7315

}

7316

7317

static void test_parse_arguments_short_dir(__attribute__((unused))

7318

test_fixture *fixture,

7319

__attribute__((unused))

7320

gconstpointer user_data){

7321

char *argv[] = {

7322

strdup("prgname"),

7323

strdup("-d"),

7324

strdup("/tmp"),

7325

NULL };

7326

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7327

7328

__attribute__((cleanup(cleanup_string)))

7329

char *agent_directory = NULL;

7330

char *helper_directory = NULL;

7331

uid_t user = 0;

7332

gid_t group = 0;

7333

__attribute__((cleanup(cleanup_string)))

7334

char *mandos_argz = NULL;

7335

size_t mandos_argz_length = 0;

7336

7337

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7338

&helper_directory, &user, &group,

7339

&mandos_argz, &mandos_argz_length));

7340

7341

g_assert_cmpstr(agent_directory, ==, "/tmp");

7342

g_assert_null(helper_directory);

7343

g_assert_true(user == 0);

7344

g_assert_true(group == 0);

7345

g_assert_null(mandos_argz);

7346

g_assert_true(mandos_argz_length == 0);

7347

7348

for(char **arg = argv; *arg != NULL; arg++){

7349

free(*arg);

7350

}

7351

}

7352

7353

static

7354

void test_parse_arguments_helper_directory(__attribute__((unused))

7355

test_fixture *fixture,

7356

__attribute__((unused))

7357

gconstpointer user_data){

7358

char *argv[] = {

7359

strdup("prgname"),

7360

strdup("--helper-directory"),

7361

strdup("/tmp"),

7362

NULL };

7363

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7364

7365

char *agent_directory = NULL;

7366

__attribute__((cleanup(cleanup_string)))

7367

char *helper_directory = NULL;

7368

uid_t user = 0;

7369

gid_t group = 0;

7370

__attribute__((cleanup(cleanup_string)))

7371

char *mandos_argz = NULL;

7372

size_t mandos_argz_length = 0;

7373

7374

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7375

&helper_directory, &user, &group,

7376

&mandos_argz, &mandos_argz_length));

7377

7378

g_assert_cmpstr(helper_directory, ==, "/tmp");

7379

g_assert_null(agent_directory);

7380

g_assert_true(user == 0);

7381

g_assert_true(group == 0);

7382

g_assert_null(mandos_argz);

7383

g_assert_true(mandos_argz_length == 0);

7384

7385

for(char **arg = argv; *arg != NULL; arg++){

7386

free(*arg);

7387

}

7388

}

7389

7390

static

7391

void test_parse_arguments_plugin_helper_dir(__attribute__((unused))

7392

test_fixture *fixture,

7393

__attribute__((unused))

7394

gconstpointer user_data){

7395

char *argv[] = {

7396

strdup("prgname"),

7397

strdup("--plugin-helper-dir"),

7398

strdup("/tmp"),

7399

NULL };

7400

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7401

7402

char *agent_directory = NULL;

7403

__attribute__((cleanup(cleanup_string)))

7404

char *helper_directory = NULL;

7405

uid_t user = 0;

7406

gid_t group = 0;

7407

__attribute__((cleanup(cleanup_string)))

7408

char *mandos_argz = NULL;

7409

size_t mandos_argz_length = 0;

7410

7411

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7412

&helper_directory, &user, &group,

7413

&mandos_argz, &mandos_argz_length));

7414

7415

g_assert_cmpstr(helper_directory, ==, "/tmp");

7416

g_assert_null(agent_directory);

7417

g_assert_true(user == 0);

7418

g_assert_true(group == 0);

7419

g_assert_null(mandos_argz);

7420

g_assert_true(mandos_argz_length == 0);

7421

7422

for(char **arg = argv; *arg != NULL; arg++){

7423

free(*arg);

7424

}

7425

}

7426

7427

static void test_parse_arguments_user(__attribute__((unused))

7428

test_fixture *fixture,

7429

__attribute__((unused))

7430

gconstpointer user_data){

7431

char *argv[] = {

7432

strdup("prgname"),

7433

strdup("--user"),

7434

strdup("1000"),

7435

NULL };

7436

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7437

7438

char *agent_directory = NULL;

7439

__attribute__((cleanup(cleanup_string)))

7440

char *helper_directory = NULL;

7441

uid_t user = 0;

7442

gid_t group = 0;

7443

__attribute__((cleanup(cleanup_string)))

7444

char *mandos_argz = NULL;

7445

size_t mandos_argz_length = 0;

7446

7447

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7448

&helper_directory, &user, &group,

7449

&mandos_argz, &mandos_argz_length));

7450

7451

g_assert_null(helper_directory);

7452

g_assert_null(agent_directory);

7453

g_assert_cmpuint((unsigned int)user, ==, 1000);

7454

g_assert_true(group == 0);

7455

g_assert_null(mandos_argz);

7456

g_assert_true(mandos_argz_length == 0);

7457

7458

for(char **arg = argv; *arg != NULL; arg++){

7459

free(*arg);

7460

}

7461

}

7462

7463

static void test_parse_arguments_user_invalid(__attribute__((unused))

7464

test_fixture *fixture,

7465

__attribute__((unused))

7466

gconstpointer

7467

user_data){

7468

char *argv[] = {

7469

strdup("prgname"),

7470

strdup("--user"),

7471

strdup("invalid"),

7472

NULL };

7473

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7474

7475

char *agent_directory = NULL;

7476

__attribute__((cleanup(cleanup_string)))

7477

char *helper_directory = NULL;

7478

uid_t user = 0;

7479

gid_t group = 0;

7480

__attribute__((cleanup(cleanup_string)))

7481

char *mandos_argz = NULL;

7482

size_t mandos_argz_length = 0;

7483

7484

g_assert_false(parse_arguments_devnull(argc, argv, false,

7485

&agent_directory,

7486

&helper_directory, &user,

7487

&group, &mandos_argz,

7488

&mandos_argz_length));

7489

7490

g_assert_null(helper_directory);

7491

g_assert_null(agent_directory);

7492

g_assert_cmpuint((unsigned int)user, ==, 0);

7493

g_assert_true(group == 0);

7494

g_assert_null(mandos_argz);

7495

g_assert_true(mandos_argz_length == 0);

7496

7497

for(char **arg = argv; *arg != NULL; arg++){

7498

free(*arg);

7499

}

7500

}

7501

7502

static

7503

void test_parse_arguments_user_zero_invalid(__attribute__((unused))

7504

test_fixture *fixture,

7505

__attribute__((unused))

7506

gconstpointer user_data){

7507

char *argv[] = {

7508

strdup("prgname"),

7509

strdup("--user"),

7510

strdup("0"),

7511

NULL };

7512

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7513

7514

char *agent_directory = NULL;

7515

__attribute__((cleanup(cleanup_string)))

7516

char *helper_directory = NULL;

7517

uid_t user = 0;

7518

gid_t group = 0;

7519

__attribute__((cleanup(cleanup_string)))

7520

char *mandos_argz = NULL;

7521

size_t mandos_argz_length = 0;

7522

7523

g_assert_false(parse_arguments_devnull(argc, argv, false,

7524

&agent_directory,

7525

&helper_directory, &user,

7526

&group, &mandos_argz,

7527

&mandos_argz_length));

7528

7529

g_assert_null(helper_directory);

7530

g_assert_null(agent_directory);

7531

g_assert_cmpuint((unsigned int)user, ==, 0);

7532

g_assert_true(group == 0);

7533

g_assert_null(mandos_argz);

7534

g_assert_true(mandos_argz_length == 0);

7535

7536

for(char **arg = argv; *arg != NULL; arg++){

7537

free(*arg);

7538

}

7539

}

7540

7541

static void test_parse_arguments_group(__attribute__((unused))

7542

test_fixture *fixture,

7543

__attribute__((unused))

7544

gconstpointer user_data){

7545

char *argv[] = {

7546

strdup("prgname"),

7547

strdup("--group"),

7548

strdup("1000"),

7549

NULL };

7550

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7551

7552

char *agent_directory = NULL;

7553

__attribute__((cleanup(cleanup_string)))

7554

char *helper_directory = NULL;

7555

uid_t user = 0;

7556

gid_t group = 0;

7557

__attribute__((cleanup(cleanup_string)))

7558

char *mandos_argz = NULL;

7559

size_t mandos_argz_length = 0;

7560

7561

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7562

&helper_directory, &user, &group,

7563

&mandos_argz, &mandos_argz_length));

7564

7565

g_assert_null(helper_directory);

7566

g_assert_null(agent_directory);

7567

g_assert_true(user == 0);

7568

g_assert_cmpuint((unsigned int)group, ==, 1000);

7569

g_assert_null(mandos_argz);

7570

g_assert_true(mandos_argz_length == 0);

7571

7572

for(char **arg = argv; *arg != NULL; arg++){

7573

free(*arg);

7574

}

7575

}

7576

7577

static void test_parse_arguments_group_invalid(__attribute__((unused))

7578

test_fixture *fixture,

7579

__attribute__((unused))

7580

gconstpointer

7581

user_data){

7582

char *argv[] = {

7583

strdup("prgname"),

7584

strdup("--group"),

7585

strdup("invalid"),

7586

NULL };

7587

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7588

7589

char *agent_directory = NULL;

7590

__attribute__((cleanup(cleanup_string)))

7591

char *helper_directory = NULL;

7592

uid_t user = 0;

7593

gid_t group = 0;

7594

__attribute__((cleanup(cleanup_string)))

7595

char *mandos_argz = NULL;

7596

size_t mandos_argz_length = 0;

7597

7598

g_assert_false(parse_arguments_devnull(argc, argv, false,

7599

&agent_directory,

7600

&helper_directory, &user,

7601

&group, &mandos_argz,

7602

&mandos_argz_length));

7603

7604

g_assert_null(helper_directory);

7605

g_assert_null(agent_directory);

7606

g_assert_true(user == 0);

7607

g_assert_true(group == 0);

7608

g_assert_null(mandos_argz);

7609

g_assert_true(mandos_argz_length == 0);

7610

7611

for(char **arg = argv; *arg != NULL; arg++){

7612

free(*arg);

7613

}

7614

}

7615

7616

static

7617

void test_parse_arguments_group_zero_invalid(__attribute__((unused))

7618

test_fixture *fixture,

7619

__attribute__((unused))

7620

gconstpointer user_data){

7621

char *argv[] = {

7622

strdup("prgname"),

7623

strdup("--group"),

7624

strdup("0"),

7625

NULL };

7626

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7627

7628

char *agent_directory = NULL;

7629

__attribute__((cleanup(cleanup_string)))

7630

char *helper_directory = NULL;

7631

uid_t user = 0;

7632

gid_t group = 0;

7633

__attribute__((cleanup(cleanup_string)))

7634

char *mandos_argz = NULL;

7635

size_t mandos_argz_length = 0;

7636

7637

g_assert_false(parse_arguments_devnull(argc, argv, false,

7638

&agent_directory,

7639

&helper_directory, &user,

7640

&group, &mandos_argz,

7641

&mandos_argz_length));

7642

7643

g_assert_null(helper_directory);

7644

g_assert_null(agent_directory);

7645

g_assert_cmpuint((unsigned int)group, ==, 0);

7646

g_assert_true(group == 0);

7647

g_assert_null(mandos_argz);

7648

g_assert_true(mandos_argz_length == 0);

7649

7650

for(char **arg = argv; *arg != NULL; arg++){

7651

free(*arg);

7652

}

7653

}

7654

7655

static void test_parse_arguments_mandos_noargs(__attribute__((unused))

7656

test_fixture *fixture,

7657

__attribute__((unused))

7658

gconstpointer

7659

user_data){

7660

char *argv[] = {

7661

strdup("prgname"),

7662

strdup("mandos-client"),

7663

NULL };

7664

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7665

7666

__attribute__((cleanup(cleanup_string)))

7667

char *agent_directory = NULL;

7668

__attribute__((cleanup(cleanup_string)))

7669

char *helper_directory = NULL;

7670

uid_t user = 0;

7671

gid_t group = 0;

7672

__attribute__((cleanup(cleanup_string)))

7673

char *mandos_argz = NULL;

7674

size_t mandos_argz_length = 0;

7675

7676

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7677

&helper_directory, &user, &group,

7678

&mandos_argz, &mandos_argz_length));

7679

7680

g_assert_null(agent_directory);

7681

g_assert_null(helper_directory);

7682

g_assert_true(user == 0);

7683

g_assert_true(group == 0);

7684

g_assert_cmpstr(mandos_argz, ==, "mandos-client");

7685

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7686

mandos_argz_length),

7687

==, 1);

7688

7689

for(char **arg = argv; *arg != NULL; arg++){

7690

free(*arg);

7691

}

7692

}

7693

7694

static void test_parse_arguments_mandos_args(__attribute__((unused))

7695

test_fixture *fixture,

7696

__attribute__((unused))

7697

gconstpointer user_data){

7698

char *argv[] = {

7699

strdup("prgname"),

7700

strdup("mandos-client"),

7701

strdup("one"),

7702

strdup("two"),

7703

strdup("three"),

7704

NULL };

7705

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7706

7707

__attribute__((cleanup(cleanup_string)))

7708

char *agent_directory = NULL;

7709

__attribute__((cleanup(cleanup_string)))

7710

char *helper_directory = NULL;

7711

uid_t user = 0;

7712

gid_t group = 0;

7713

__attribute__((cleanup(cleanup_string)))

7714

char *mandos_argz = NULL;

7715

size_t mandos_argz_length = 0;

7716

7717

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7718

&helper_directory, &user, &group,

7719

&mandos_argz, &mandos_argz_length));

7720

7721

g_assert_null(agent_directory);

7722

g_assert_null(helper_directory);

7723

g_assert_true(user == 0);

7724

g_assert_true(group == 0);

7725

char *marg = mandos_argz;

7726

g_assert_cmpstr(marg, ==, "mandos-client");

7727

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7728

g_assert_cmpstr(marg, ==, "one");

7729

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7730

g_assert_cmpstr(marg, ==, "two");

7731

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7732

g_assert_cmpstr(marg, ==, "three");

7733

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7734

mandos_argz_length),

7735

==, 4);

7736

7737

for(char **arg = argv; *arg != NULL; arg++){

7738

free(*arg);

7739

}

7740

}

7741

7742

static void test_parse_arguments_all_args(__attribute__((unused))

7743

test_fixture *fixture,

7744

__attribute__((unused))

7745

gconstpointer user_data){

7746

char *argv[] = {

7747

strdup("prgname"),

7748

strdup("--agent-directory"),

7749

strdup("/tmp"),

7750

strdup("--helper-directory"),

7751

strdup("/var/tmp"),

7752

strdup("--user"),

7753

strdup("1"),

7754

strdup("--group"),

7755

strdup("2"),

7756

strdup("mandos-client"),

7757

strdup("one"),

7758

strdup("two"),

7759

strdup("three"),

7760

NULL };

7761

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7762

7763

__attribute__((cleanup(cleanup_string)))

7764

char *agent_directory = NULL;

7765

__attribute__((cleanup(cleanup_string)))

7766

char *helper_directory = NULL;

7767

uid_t user = 0;

7768

gid_t group = 0;

7769

__attribute__((cleanup(cleanup_string)))

7770

char *mandos_argz = NULL;

7771

size_t mandos_argz_length = 0;

7772

7773

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7774

&helper_directory, &user, &group,

7775

&mandos_argz, &mandos_argz_length));

7776

7777

g_assert_cmpstr(agent_directory, ==, "/tmp");

7778

g_assert_cmpstr(helper_directory, ==, "/var/tmp");

7779

g_assert_true(user == 1);

7780

g_assert_true(group == 2);

7781

char *marg = mandos_argz;

7782

g_assert_cmpstr(marg, ==, "mandos-client");

7783

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7784

g_assert_cmpstr(marg, ==, "one");

7785

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7786

g_assert_cmpstr(marg, ==, "two");

7787

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7788

g_assert_cmpstr(marg, ==, "three");

7789

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7790

mandos_argz_length),

7791

==, 4);

7792

7793

for(char **arg = argv; *arg != NULL; arg++){

7794

free(*arg);

7795

}

7796

}

7797

7798

static void test_parse_arguments_mixed(__attribute__((unused))

7799

test_fixture *fixture,

7800

__attribute__((unused))

7801

gconstpointer user_data){

7802

char *argv[] = {

7803

strdup("prgname"),

7804

strdup("mandos-client"),

7805

strdup("--user"),

7806

strdup("1"),

7807

strdup("one"),

7808

strdup("--agent-directory"),

7809

strdup("/tmp"),

7810

strdup("two"),

7811

strdup("three"),

7812

strdup("--helper-directory=/var/tmp"),

7813

NULL };

7814

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7815

7816

__attribute__((cleanup(cleanup_string)))

7817

char *agent_directory = NULL;

7818

__attribute__((cleanup(cleanup_string)))

7819

char *helper_directory = NULL;

7820

uid_t user = 0;

7821

gid_t group = 0;

7822

__attribute__((cleanup(cleanup_string)))

7823

char *mandos_argz = NULL;

7824

size_t mandos_argz_length = 0;

7825

7826

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7827

&helper_directory, &user, &group,

7828

&mandos_argz, &mandos_argz_length));

7829

7830

g_assert_cmpstr(agent_directory, ==, "/tmp");

7831

g_assert_cmpstr(helper_directory, ==, "/var/tmp");

7832

g_assert_true(user == 1);

7833

g_assert_true(group == 0);

7834

char *marg = mandos_argz;

7835

g_assert_cmpstr(marg, ==, "mandos-client");

7836

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7837

g_assert_cmpstr(marg, ==, "one");

7838

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7839

g_assert_cmpstr(marg, ==, "two");

7840

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7841

g_assert_cmpstr(marg, ==, "three");

7842

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7843

mandos_argz_length),

7844

==, 4);

7845

7846

for(char **arg = argv; *arg != NULL; arg++){

7847

free(*arg);

7848

}

7849

}

7850

7851

/* End of tests section */

7852

7853

/* Test boilerplate section; New tests should be added to the test

7854

suite definition here, in the "run_tests" function.

7855

7856

Finally, this section also contains the should_only_run_tests()

7857

function used by main() for deciding if tests should be run or to

7858

start normally. */

7859

7860

__attribute__((cold))

7861

static bool run_tests(int argc, char *argv[]){

7862

g_test_init(&argc, &argv, NULL);

7863

7864

/* A macro to add a test with no setup or teardown functions */

7865

#define test_add(testpath, testfunc) \

7866

do { \

7867

g_test_add((testpath), test_fixture, NULL, NULL, \

7868

(testfunc), NULL); \

7869

} while(false)

7870

7871

/* Test the signal-related functions first, since some other tests

7872

depend on these functions in their setups and teardowns */

7873

test_add("/signal-handling/setup", test_setup_signal_handler);

7874

test_add("/signal-handling/restore", test_restore_signal_handler);

7875

test_add("/signal-handling/block", test_block_sigchld);

7876

test_add("/signal-handling/restore-sigmask", test_restore_sigmask);

7877

7878

/* Regular non-signal-related tests; these use no setups or

7879

teardowns */

7880

test_add("/parse_arguments/noargs", test_parse_arguments_noargs);

7881

test_add("/parse_arguments/invalid", test_parse_arguments_invalid);

7882

test_add("/parse_arguments/long-dir",

7883

test_parse_arguments_long_dir);

7884

test_add("/parse_arguments/short-dir",

7885

test_parse_arguments_short_dir);

7886

test_add("/parse_arguments/helper-directory",

7887

test_parse_arguments_helper_directory);

7888

test_add("/parse_arguments/plugin-helper-dir",

7889

test_parse_arguments_plugin_helper_dir);

7890

test_add("/parse_arguments/user", test_parse_arguments_user);

7891

test_add("/parse_arguments/user-invalid",

7892

test_parse_arguments_user_invalid);

7893

test_add("/parse_arguments/user-zero-invalid",

7894

test_parse_arguments_user_zero_invalid);

7895

test_add("/parse_arguments/group", test_parse_arguments_group);

7896

test_add("/parse_arguments/group-invalid",

7897

test_parse_arguments_group_invalid);

7898

test_add("/parse_arguments/group-zero-invalid",

7899

test_parse_arguments_group_zero_invalid);

7900

test_add("/parse_arguments/mandos-noargs",

7901

test_parse_arguments_mandos_noargs);

7902

test_add("/parse_arguments/mandos-args",

7903

test_parse_arguments_mandos_args);

7904

test_add("/parse_arguments/all-args",

7905

test_parse_arguments_all_args);

7906

test_add("/parse_arguments/mixed", test_parse_arguments_mixed);

7907

test_add("/queue/create", test_create_queue);

7908

test_add("/queue/add", test_add_to_queue);

7909

test_add("/queue/add/overflow", test_add_to_queue_overflow);

7910

test_add("/queue/has_question/empty",

7911

test_queue_has_question_empty);

7912

test_add("/queue/has_question/false",

7913

test_queue_has_question_false);

7914

test_add("/queue/has_question/true", test_queue_has_question_true);

7915

test_add("/queue/has_question/false2",

7916

test_queue_has_question_false2);

7917

test_add("/queue/has_question/true2",

7918

test_queue_has_question_true2);

7919

test_add("/buffer/cleanup", test_cleanup_buffer);

7920

test_add("/string_set/net-set-contains-nothing",

7921

test_string_set_new_set_contains_nothing);

7922

test_add("/string_set/with-added-string-contains-it",

7923

test_string_set_with_added_string_contains_it);

7924

test_add("/string_set/cleared-does-not-contain-string",

7925

test_string_set_cleared_does_not_contain_str);

7926

test_add("/string_set/swap/one-with-empty",

7927

test_string_set_swap_one_with_empty);

7928

test_add("/string_set/swap/empty-with-one",

7929

test_string_set_swap_empty_with_one);

7930

test_add("/string_set/swap/one-with-one",

7931

test_string_set_swap_one_with_one);

7932

7933

/* A macro to add a test using the setup and teardown functions */

7934

#define test_add_st(path, func) \

7935

do { \

7936

g_test_add((path), test_fixture, NULL, test_setup, (func), \

7937

test_teardown); \

7938

} while(false)

7939

7940

/* Signal-related tests; these use setups and teardowns which

7941

establish, during each test run, a signal handler for, and a

7942

signal mask blocking, the SIGCHLD signal, just like main() */

7943

test_add_st("/wait_for_event/timeout", test_wait_for_event_timeout);

7944

test_add_st("/wait_for_event/event", test_wait_for_event_event);

7945

test_add_st("/wait_for_event/sigchld", test_wait_for_event_sigchld);

7946

test_add_st("/run_queue/zeroes-next-run",

7947

test_run_queue_zeroes_next_run);

7948

test_add_st("/run_queue/clears-cancelled_filenames",

7949

test_run_queue_clears_cancelled_filenames);

7950

test_add_st("/run_queue/skips-cancelled-filenames",

7951

test_run_queue_skips_cancelled_filenames);

7952

test_add_st("/run_queue/one-task", test_run_queue_one_task);

7953

test_add_st("/run_queue/two-tasks", test_run_queue_two_tasks);

7954

test_add_st("/run_queue/two-tasks/quit",

7955

test_run_queue_two_tasks_quit);

7956

test_add_st("/run_queue/two-tasks-cleanup",

7957

test_run_queue_two_tasks_cleanup);

7958

test_add_st("/task-creators/start_mandos_client",

7959

test_start_mandos_client);

7960

test_add_st("/task-creators/start_mandos_client/execv",

7961

test_start_mandos_client_execv);

7962

test_add_st("/task-creators/start_mandos_client/suid/euid",

7963

test_start_mandos_client_suid_euid);

7964

test_add_st("/task-creators/start_mandos_client/suid/egid",

7965

test_start_mandos_client_suid_egid);

7966

test_add_st("/task-creators/start_mandos_client/suid/ruid",

7967

test_start_mandos_client_suid_ruid);

7968

test_add_st("/task-creators/start_mandos_client/suid/rgid",

7969

test_start_mandos_client_suid_rgid);

7970

test_add_st("/task-creators/start_mandos_client/read",

7971

test_start_mandos_client_read);

7972

test_add_st("/task-creators/start_mandos_client/helper-directory",

7973

test_start_mandos_client_helper_directory);

7974

test_add_st("/task-creators/start_mandos_client/sigmask",

7975

test_start_mandos_client_sigmask);

7976

test_add_st("/task/wait_for_mandos_client_exit/badpid",

7977

test_wait_for_mandos_client_exit_badpid);

7978

test_add_st("/task/wait_for_mandos_client_exit/noexit",

7979

test_wait_for_mandos_client_exit_noexit);

7980

test_add_st("/task/wait_for_mandos_client_exit/success",

7981

test_wait_for_mandos_client_exit_success);

7982

test_add_st("/task/wait_for_mandos_client_exit/failure",

7983

test_wait_for_mandos_client_exit_failure);

7984

test_add_st("/task/wait_for_mandos_client_exit/killed",

7985

test_wait_for_mandos_client_exit_killed);

7986

test_add_st("/task/read_mandos_client_output/readerror",

7987

test_read_mandos_client_output_readerror);

7988

test_add_st("/task/read_mandos_client_output/nodata",

7989

test_read_mandos_client_output_nodata);

7990

test_add_st("/task/read_mandos_client_output/eof",

7991

test_read_mandos_client_output_eof);

7992

test_add_st("/task/read_mandos_client_output/once",

7993

test_read_mandos_client_output_once);

7994

test_add_st("/task/read_mandos_client_output/malloc",

7995

test_read_mandos_client_output_malloc);

7996

test_add_st("/task/read_mandos_client_output/append",

7997

test_read_mandos_client_output_append);

7998

test_add_st("/task-creators/add_inotify_dir_watch",

7999

test_add_inotify_dir_watch);

8000

test_add_st("/task-creators/add_inotify_dir_watch/fail",

8001

test_add_inotify_dir_watch_fail);

8002

test_add_st("/task-creators/add_inotify_dir_watch/not-a-directory",

8003

test_add_inotify_dir_watch_nondir);

8004

test_add_st("/task-creators/add_inotify_dir_watch/EAGAIN",

8005

test_add_inotify_dir_watch_EAGAIN);

8006

test_add_st("/task-creators/add_inotify_dir_watch/IN_CLOSE_WRITE",

8007

test_add_inotify_dir_watch_IN_CLOSE_WRITE);

8008

test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_TO",

8009

test_add_inotify_dir_watch_IN_MOVED_TO);

8010

test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_FROM",

8011

test_add_inotify_dir_watch_IN_MOVED_FROM);

8012

test_add_st("/task-creators/add_inotify_dir_watch/IN_EXCL_UNLINK",

8013

test_add_inotify_dir_watch_IN_EXCL_UNLINK);

8014

test_add_st("/task-creators/add_inotify_dir_watch/IN_DELETE",

8015

test_add_inotify_dir_watch_IN_DELETE);

8016

test_add_st("/task/read_inotify_event/readerror",

8017

test_read_inotify_event_readerror);

8018

test_add_st("/task/read_inotify_event/bad-epoll",

8019

test_read_inotify_event_bad_epoll);

8020

test_add_st("/task/read_inotify_event/nodata",

8021

test_read_inotify_event_nodata);

8022

test_add_st("/task/read_inotify_event/eof",

8023

test_read_inotify_event_eof);

8024

test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE",

8025

test_read_inotify_event_IN_CLOSE_WRITE);

8026

test_add_st("/task/read_inotify_event/IN_MOVED_TO",

8027

test_read_inotify_event_IN_MOVED_TO);

8028

test_add_st("/task/read_inotify_event/IN_MOVED_FROM",

8029

test_read_inotify_event_IN_MOVED_FROM);

8030

test_add_st("/task/read_inotify_event/IN_DELETE",

8031

test_read_inotify_event_IN_DELETE);

8032

test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE/badname",

8033

test_read_inotify_event_IN_CLOSE_WRITE_badname);

8034

test_add_st("/task/read_inotify_event/IN_MOVED_TO/badname",

8035

test_read_inotify_event_IN_MOVED_TO_badname);

8036

test_add_st("/task/read_inotify_event/IN_MOVED_FROM/badname",

8037

test_read_inotify_event_IN_MOVED_FROM_badname);

8038

test_add_st("/task/read_inotify_event/IN_DELETE/badname",

8039

test_read_inotify_event_IN_DELETE_badname);

8040

test_add_st("/task/open_and_parse_question/ENOENT",

8041

test_open_and_parse_question_ENOENT);

8042

test_add_st("/task/open_and_parse_question/EIO",

8043

test_open_and_parse_question_EIO);

8044

test_add_st("/task/open_and_parse_question/parse-error",

8045

test_open_and_parse_question_parse_error);

8046

test_add_st("/task/open_and_parse_question/nosocket",

8047

test_open_and_parse_question_nosocket);

8048

test_add_st("/task/open_and_parse_question/badsocket",

8049

test_open_and_parse_question_badsocket);

8050

test_add_st("/task/open_and_parse_question/nopid",

8051

test_open_and_parse_question_nopid);

8052

test_add_st("/task/open_and_parse_question/badpid",

8053

test_open_and_parse_question_badpid);

8054

test_add_st("/task/open_and_parse_question/noexist_pid",

8055

test_open_and_parse_question_noexist_pid);

8056

test_add_st("/task/open_and_parse_question/no-notafter",

8057

test_open_and_parse_question_no_notafter);

8058

test_add_st("/task/open_and_parse_question/bad-notafter",

8059

test_open_and_parse_question_bad_notafter);

8060

test_add_st("/task/open_and_parse_question/notafter-0",

8061

test_open_and_parse_question_notafter_0);

8062

test_add_st("/task/open_and_parse_question/notafter-1",

8063

test_open_and_parse_question_notafter_1);

8064

test_add_st("/task/open_and_parse_question/notafter-1-1",

8065

test_open_and_parse_question_notafter_1_1);

8066

test_add_st("/task/open_and_parse_question/notafter-1-2",

8067

test_open_and_parse_question_notafter_1_2);

8068

test_add_st("/task/open_and_parse_question/equal-notafter",

8069

test_open_and_parse_question_equal_notafter);

8070

test_add_st("/task/open_and_parse_question/late-notafter",

8071

test_open_and_parse_question_late_notafter);

8072

test_add_st("/task/cancel_old_question/0-1-2",

8073

test_cancel_old_question_0_1_2);

8074

test_add_st("/task/cancel_old_question/0-2-1",

8075

test_cancel_old_question_0_2_1);

8076

test_add_st("/task/cancel_old_question/1-2-3",

8077

test_cancel_old_question_1_2_3);

8078

test_add_st("/task/cancel_old_question/1-3-2",

8079

test_cancel_old_question_1_3_2);

8080

test_add_st("/task/cancel_old_question/2-1-3",

8081

test_cancel_old_question_2_1_3);

8082

test_add_st("/task/cancel_old_question/2-3-1",

8083

test_cancel_old_question_2_3_1);

8084

test_add_st("/task/cancel_old_question/3-1-2",

8085

test_cancel_old_question_3_1_2);

8086

test_add_st("/task/cancel_old_question/3-2-1",

8087

test_cancel_old_question_3_2_1);

8088

test_add_st("/task/connect_question_socket/name-too-long",

8089

test_connect_question_socket_name_too_long);

8090

test_add_st("/task/connect_question_socket/connect-fail",

8091

test_connect_question_socket_connect_fail);

8092

test_add_st("/task/connect_question_socket/bad-epoll",

8093

test_connect_question_socket_bad_epoll);

8094

test_add_st("/task/connect_question_socket/usable",

8095

test_connect_question_socket_usable);

8096

test_add_st("/task/send_password_to_socket/client-not-exited",

8097

test_send_password_to_socket_client_not_exited);

8098

test_add_st("/task/send_password_to_socket/password-not-read",

8099

test_send_password_to_socket_password_not_read);

8100

test_add_st("/task/send_password_to_socket/EMSGSIZE",

8101

test_send_password_to_socket_EMSGSIZE);

8102

test_add_st("/task/send_password_to_socket/retry",

8103

test_send_password_to_socket_retry);

8104

test_add_st("/task/send_password_to_socket/bad-epoll",

8105

test_send_password_to_socket_bad_epoll);

8106

test_add_st("/task/send_password_to_socket/null-password",

8107

test_send_password_to_socket_null_password);

8108

test_add_st("/task/send_password_to_socket/empty-password",

8109

test_send_password_to_socket_empty_password);

8110

test_add_st("/task/send_password_to_socket/empty-str-password",

8111

test_send_password_to_socket_empty_str_pass);

8112

test_add_st("/task/send_password_to_socket/text-password",

8113

test_send_password_to_socket_text_password);

8114

test_add_st("/task/send_password_to_socket/binary-password",

8115

test_send_password_to_socket_binary_password);

8116

test_add_st("/task/send_password_to_socket/nuls-in-password",

8117

test_send_password_to_socket_nuls_in_password);

8118

test_add_st("/task-creators/add_existing_questions/ENOENT",

8119

test_add_existing_questions_ENOENT);

8120

test_add_st("/task-creators/add_existing_questions/no-questions",

8121

test_add_existing_questions_no_questions);

8122

test_add_st("/task-creators/add_existing_questions/one-question",

8123

test_add_existing_questions_one_question);

8124

test_add_st("/task-creators/add_existing_questions/two-questions",

8125

test_add_existing_questions_two_questions);

8126

test_add_st("/task-creators/add_existing_questions/non-questions",

8127

test_add_existing_questions_non_questions);

8128

test_add_st("/task-creators/add_existing_questions/both-types",

8129

test_add_existing_questions_both_types);

8130

8131

return g_test_run() == 0;

8132

}

8133

8134

static bool should_only_run_tests(int *argc_p, char **argv_p[]){

8135

GOptionContext *context = g_option_context_new("");

8136

8137

g_option_context_set_help_enabled(context, FALSE);

8138

g_option_context_set_ignore_unknown_options(context, TRUE);

8139

8140

gboolean should_run_tests = FALSE;

8141

GOptionEntry entries[] = {

8142

{ "test", 0, 0, G_OPTION_ARG_NONE,

8143

&should_run_tests, "Run tests", NULL },

8144

{ NULL }

8145

};

8146

g_option_context_add_main_entries(context, entries, NULL);

8147

8148

GError *error = NULL;

8149

8150

if(g_option_context_parse(context, argc_p, argv_p, &error) != TRUE){

8151

g_option_context_free(context);

8152

g_error("Failed to parse options: %s", error->message);

8153

}

8154

8155

g_option_context_free(context);

8156

return should_run_tests != FALSE;

8157

}