/mandos/trunk : revision 1167

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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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EEXIST, ECHILD, EPERM, ENOMEM,

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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 <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, fopen(),

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getline(), sscanf(), feof(),

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ferror(), fclose(), stderr,

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rename(), fdopen(), fprintf(),

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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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/* "func_type" - 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))

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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);

337

if(agent_directory == NULL){

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

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}

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}

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if(helper_directory == NULL){

342

helper_directory = strdup(default_helper_directory);

343

if(helper_directory == NULL){

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

345

}

346

}

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if(user == 0){

348

user = 65534; /* nobody */

349

}

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

358

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

359

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()");

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}

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

}

393

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

}

408

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,

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&old_sigchld_action, orig_sigmask,

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helper_directory, user, group,

421

(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

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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

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

655

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

656

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

657

needed_size);

658

if(new_tasks == NULL){

659

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

660

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

661

return false;

662

}

663

queue->tasks = new_tasks;

664

queue->allocated = needed_size;

665

}

666

/* Using memcpy here is necessary because doing */

667

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

668

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

669

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

670

sizeof(task_context));

671

return true;

672

}

673

674

__attribute__((nonnull))

675

void cleanup_task(const task_context *const task){

676

const error_t saved_errno = errno;

677

/* free and close all task data */

678

free(task->question_filename);

679

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

680

free(task->filename);

681

}

682

if(task->pid > 0){

683

kill(task->pid, SIGTERM);

684

}

685

if(task->fd > 0){

686

close(task->fd);

687

}

688

errno = saved_errno;

689

}

690

691

__attribute__((nonnull))

692

void free_queue(task_queue *const queue){

693

free(queue->tasks);

694

free(queue);

695

}

696

697

__attribute__((nonnull))

698

void cleanup_queue(task_queue *const *const queue){

699

if(*queue == NULL){

700

return;

701

}

702

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

703

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

704

cleanup_task(task);

705

}

706

free_queue(*queue);

707

}

708

709

__attribute__((pure, nonnull, warn_unused_result))

710

bool queue_has_question(const task_queue *const queue){

711

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

712

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

713

return true;

714

}

715

}

716

return false;

717

}

718

719

__attribute__((nonnull))

720

void cleanup_close(const int *const fd){

721

const error_t saved_errno = errno;

722

close(*fd);

723

errno = saved_errno;

724

}

725

726

__attribute__((nonnull))

727

void cleanup_string(char *const *const ptr){

728

free(*ptr);

729

}

730

731

__attribute__((nonnull))

732

void cleanup_buffer(buffer *buf){

733

if(buf->allocated > 0){

734

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

735

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

736

#else

737

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

738

#endif

739

}

740

if(buf->data != NULL){

741

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

742

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

743

}

744

free(buf->data);

745

buf->data = NULL;

746

}

747

buf->length = 0;

748

buf->allocated = 0;

749

}

750

751

__attribute__((pure, nonnull, warn_unused_result))

752

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

753

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

754

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

755

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

756

return true;

757

}

758

}

759

return false;

760

}

761

762

__attribute__((nonnull, warn_unused_result))

763

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

764

if(string_set_contains(*set, str)){

765

return true;

766

}

767

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

768

if(error == 0){

769

return true;

770

}

771

errno = error;

772

return false;

773

}

774

775

__attribute__((nonnull))

776

void string_set_clear(string_set *set){

777

free(set->argz);

778

set->argz = NULL;

779

set->argz_len = 0;

780

}

781

782

__attribute__((nonnull))

783

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

784

/* Swap contents of two string sets */

785

{

786

char *const tmp_argz = set1->argz;

787

set1->argz = set2->argz;

788

set2->argz = tmp_argz;

789

}

790

{

791

const size_t tmp_argz_len = set1->argz_len;

792

set1->argz_len = set2->argz_len;

793

set2->argz_len = tmp_argz_len;

794

}

795

}

796

797

__attribute__((nonnull, warn_unused_result))

798

bool start_mandos_client(task_queue *const queue,

799

const int epoll_fd,

800

bool *const mandos_client_exited,

801

bool *const quit_now, buffer *const password,

802

bool *const password_is_read,

803

const struct sigaction *const

804

old_sigchld_action, const sigset_t sigmask,

805

const char *const helper_directory,

806

const uid_t user, const gid_t group,

807

const char *const *const argv){

808

int pipefds[2];

809

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

810

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

811

return false;

812

}

813

814

const pid_t pid = fork();

815

if(pid == 0){

816

if(not restore_signal_handler(old_sigchld_action)){

817

_exit(EXIT_FAILURE);

818

}

819

if(not restore_sigmask(&sigmask)){

820

_exit(EXIT_FAILURE);

821

}

822

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

823

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

824

_exit(EXIT_FAILURE);

825

}

826

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

827

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

828

_exit(EXIT_FAILURE);

829

}

830

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

831

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

832

_exit(EXIT_FAILURE);

833

}

834

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

835

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

836

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

837

_exit(EXIT_FAILURE);

838

}

839

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

840

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

841

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

842

_exit(EXIT_FAILURE);

843

}

844

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

845

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

846

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

847

_exit(EXIT_FAILURE);

848

}

849

#ifdef __GNUC__

850

#pragma GCC diagnostic push

851

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

852

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

853

#pragma GCC diagnostic ignored "-Wcast-qual"

854

#endif

855

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

856

#ifdef __GNUC__

857

#pragma GCC diagnostic pop

858

#endif

859

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

860

_exit(EXIT_FAILURE);

861

}

862

close(pipefds[1]);

863

864

if(not add_to_queue(queue, (task_context){

865

.func=wait_for_mandos_client_exit,

866

.pid=pid,

867

.mandos_client_exited=mandos_client_exited,

868

.quit_now=quit_now,

869

})){

870

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

871

close(pipefds[0]);

872

return false;

873

}

874

875

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

876

&(struct epoll_event)

877

{ .events=EPOLLIN | EPOLLRDHUP });

878

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

879

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

880

close(pipefds[0]);

881

return false;

882

}

883

884

return add_to_queue(queue, (task_context){

885

.func=read_mandos_client_output,

886

.epoll_fd=epoll_fd,

887

.fd=pipefds[0],

888

.quit_now=quit_now,

889

.password=password,

890

.password_is_read=password_is_read,

891

});

892

}

893

894

__attribute__((nonnull))

895

void wait_for_mandos_client_exit(const task_context task,

896

task_queue *const queue){

897

const pid_t pid = task.pid;

898

bool *const mandos_client_exited = task.mandos_client_exited;

899

bool *const quit_now = task.quit_now;

900

901

int status;

902

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

903

case 0: /* Not exited yet */

904

if(not add_to_queue(queue, task)){

905

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

906

*quit_now = true;

907

}

908

break;

909

case -1: /* Error */

910

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

911

if(errno != ECHILD){

912

kill(pid, SIGTERM);

913

}

914

*quit_now = true;

915

break;

916

default: /* Has exited */

917

*mandos_client_exited = true;

918

if((not WIFEXITED(status))

919

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

920

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

921

*quit_now = true;

922

}

923

}

924

}

925

926

__attribute__((nonnull))

927

void read_mandos_client_output(const task_context task,

928

task_queue *const queue){

929

buffer *const password = task.password;

930

bool *const quit_now = task.quit_now;

931

bool *const password_is_read = task.password_is_read;

932

const int fd = task.fd;

933

const int epoll_fd = task.epoll_fd;

934

935

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

936

if(password->allocated < new_potential_size){

937

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

938

if(new_buffer == NULL){

939

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

940

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

941

*quit_now = true;

942

close(fd);

943

return;

944

}

945

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

946

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

947

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

948

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

949

}

950

}

951

if(password->length > 0){

952

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

953

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

954

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

955

#else

956

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

957

#endif

958

}

959

if(password->data != NULL){

960

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

961

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

962

}

963

free(password->data);

964

}

965

password->data = new_buffer;

966

password->allocated = new_potential_size;

967

}

968

969

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

970

+ password->length, PIPE_BUF);

971

972

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

973

*password_is_read = true;

974

close(fd);

975

return;

976

}

977

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

978

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

979

*quit_now = true;

980

close(fd);

981

return;

982

}

983

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

984

password->length += (size_t)read_length;

985

}

986

987

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

988

available yet */

989

990

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

991

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

992

&(struct epoll_event)

993

{ .events=EPOLLIN | EPOLLRDHUP });

994

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

995

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

996

*quit_now = true;

997

close(fd);

998

return;

999

}

1000

1001

/* Re-add myself to the queue */

1002

if(not add_to_queue(queue, task)){

1003

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

1004

*quit_now = true;

1005

close(fd);

1006

}

1007

}

1008

1009

__attribute__((nonnull, warn_unused_result))

1010

bool add_inotify_dir_watch(task_queue *const queue,

1011

const int epoll_fd, bool *const quit_now,

1012

buffer *const password,

1013

const char *const dir,

1014

string_set *cancelled_filenames,

1015

const mono_microsecs *const current_time,

1016

bool *const mandos_client_exited,

1017

bool *const password_is_read){

1018

const int fd = inotify_init1(IN_NONBLOCK | IN_CLOEXEC);

1019

if(fd == -1){

1020

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

1021

return false;

1022

}

1023

1024

if(inotify_add_watch(fd, dir, IN_CLOSE_WRITE | IN_MOVED_TO

1025

| IN_MOVED_FROM| IN_DELETE | IN_EXCL_UNLINK

1026

| IN_ONLYDIR)

1027

== -1){

1028

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

1029

return false;

1030

}

1031

1032

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

1033

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

1034

&(struct epoll_event)

1035

{ .events=EPOLLIN | EPOLLRDHUP });

1036

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

1037

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

1038

close(fd);

1039

return false;

1040

}

1041

1042

const task_context read_inotify_event_task = {

1043

.func=read_inotify_event,

1044

.epoll_fd=epoll_fd,

1045

.quit_now=quit_now,

1046

.password=password,

1047

.fd=fd,

1048

.filename=strdup(dir),

1049

.cancelled_filenames=cancelled_filenames,

1050

.current_time=current_time,

1051

.mandos_client_exited=mandos_client_exited,

1052

.password_is_read=password_is_read,

1053

};

1054

if(read_inotify_event_task.filename == NULL){

1055

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

1056

close(fd);

1057

return false;

1058

}

1059

1060

return add_to_queue(queue, read_inotify_event_task);

1061

}

1062

1063

__attribute__((nonnull))

1064

void read_inotify_event(const task_context task,

1065

task_queue *const queue){

1066

const int fd = task.fd;

1067

const int epoll_fd = task.epoll_fd;

1068

char *const filename = task.filename;

1069

bool *quit_now = task.quit_now;

1070

buffer *const password = task.password;

1071

string_set *const cancelled_filenames = task.cancelled_filenames;

1072

const mono_microsecs *const current_time = task.current_time;

1073

bool *const mandos_client_exited = task.mandos_client_exited;

1074

bool *const password_is_read = task.password_is_read;

1075

1076

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

1077

const size_t ievent_size = (sizeof(struct inotify_event)

1078

+ NAME_MAX + 1);

1079

struct {

1080

struct inotify_event event;

1081

char name_buffer[NAME_MAX + 1];

1082

} ievent_buffer;

1083

struct inotify_event *const ievent = &ievent_buffer.event;

1084

1085

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

1086

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

1087

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

1088

*quit_now = true;

1089

cleanup_task(&task);

1090

return;

1091

}

1092

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

1093

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

1094

filename);

1095

*quit_now = true;

1096

cleanup_task(&task);

1097

return;

1098

}

1099

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

1100

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

1101

char *question_filename = NULL;

1102

const ssize_t question_filename_length

1103

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

1104

if(question_filename_length < 0){

1105

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

1106

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

1107

} else {

1108

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

1109

if(not add_to_queue(queue, (task_context){

1110

.func=open_and_parse_question,

1111

.epoll_fd=epoll_fd,

1112

.question_filename=question_filename,

1113

.filename=question_filename,

1114

.password=password,

1115

.cancelled_filenames=cancelled_filenames,

1116

.current_time=current_time,

1117

.mandos_client_exited=mandos_client_exited,

1118

.password_is_read=password_is_read,

1119

})){

1120

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

1121

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

1122

} else {

1123

/* Force the added task (open_and_parse_question) to run

1124

immediately */

1125

queue->next_run = 1;

1126

}

1127

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

1128

if(not string_set_add(cancelled_filenames,

1129

question_filename)){

1130

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

1131

" cancelled_questions", question_filename);

1132

*quit_now = true;

1133

free(question_filename);

1134

cleanup_task(&task);

1135

return;

1136

}

1137

free(question_filename);

1138

}

1139

}

1140

}

1141

1142

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

1143

available yet */

1144

1145

/* Re-add myself to the queue */

1146

if(not add_to_queue(queue, task)){

1147

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

1148

" queue", filename);

1149

*quit_now = true;

1150

cleanup_task(&task);

1151

return;

1152

}

1153

1154

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

1155

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

1156

&(struct epoll_event)

1157

{ .events=EPOLLIN | EPOLLRDHUP });

1158

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

1159

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

1160

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

1161

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

1162

one second from now */

1163

if((queue->next_run == 0)

1164

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

1165

queue->next_run = *current_time + 1000000;

1166

}

1167

}

1168

}

1169

1170

__attribute__((nonnull))

1171

void open_and_parse_question(const task_context task,

1172

task_queue *const queue){

1173

__attribute__((cleanup(cleanup_string)))

1174

char *question_filename = task.question_filename;

1175

const int epoll_fd = task.epoll_fd;

1176

buffer *const password = task.password;

1177

string_set *const cancelled_filenames = task.cancelled_filenames;

1178

const mono_microsecs *const current_time = task.current_time;

1179

bool *const mandos_client_exited = task.mandos_client_exited;

1180

bool *const password_is_read = task.password_is_read;

1181

1182

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

1183

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

1184

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

1185

__attribute__((nonnull))

1186

void cleanup_g_key_file(GKeyFile **key_file){

1187

if(*key_file != NULL){

1188

g_key_file_free(*key_file);

1189

}

1190

}

1191

1192

__attribute__((cleanup(cleanup_g_key_file)))

1193

GKeyFile *key_file = g_key_file_new();

1194

if(key_file == NULL){

1195

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

1196

question_filename);

1197

return;

1198

}

1199

GError *glib_error = NULL;

1200

if(g_key_file_load_from_file(key_file, question_filename,

1201

G_KEY_FILE_NONE, &glib_error) != TRUE){

1202

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

1203

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

1204

if(glib_error->code != G_FILE_ERROR_NOENT){

1205

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

1206

question_filename, glib_error->message);

1207

}

1208

return;

1209

}

1210

1211

__attribute__((cleanup(cleanup_string)))

1212

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

1213

"Socket",

1214

&glib_error);

1215

if(socket_name == NULL){

1216

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

1217

question_filename, glib_error->message);

1218

return;

1219

}

1220

1221

if(strlen(socket_name) == 0){

1222

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

1223

question_filename);

1224

return;

1225

}

1226

1227

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

1228

&glib_error);

1229

if(glib_error != NULL){

1230

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

1231

question_filename, glib_error->message);

1232

return;

1233

}

1234

1235

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

1236

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

1237

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

1238

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

1239

return;

1240

}

1241

1242

guint64 notafter = g_key_file_get_uint64(key_file, "Ask",

1243

"NotAfter", &glib_error);

1244

if(glib_error != NULL){

1245

if(glib_error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND){

1246

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

1247

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

1248

}

1249

notafter = 0;

1250

}

1251

if(notafter != 0){

1252

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

1253

queue->next_run = notafter;

1254

}

1255

if(*current_time >= notafter){

1256

return;

1257

}

1258

}

1259

1260

const task_context connect_question_socket_task = {

1261

.func=connect_question_socket,

1262

.question_filename=strdup(question_filename),

1263

.epoll_fd=epoll_fd,

1264

.password=password,

1265

.filename=strdup(socket_name),

1266

.cancelled_filenames=task.cancelled_filenames,

1267

.mandos_client_exited=mandos_client_exited,

1268

.password_is_read=password_is_read,

1269

.current_time=current_time,

1270

};

1271

if(connect_question_socket_task.question_filename == NULL

1272

or connect_question_socket_task.filename == NULL

1273

or not add_to_queue(queue, connect_question_socket_task)){

1274

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

1275

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

1276

question_filename);

1277

cleanup_task(&connect_question_socket_task);

1278

return;

1279

}

1280

/* Force the added task (connect_question_socket) to run

1281

immediately */

1282

queue->next_run = 1;

1283

1284

if(notafter > 0){

1285

char *const dup_filename = strdup(question_filename);

1286

const task_context cancel_old_question_task = {

1287

.func=cancel_old_question,

1288

.question_filename=dup_filename,

1289

.notafter=notafter,

1290

.filename=dup_filename,

1291

.cancelled_filenames=cancelled_filenames,

1292

.current_time=current_time,

1293

};

1294

if(cancel_old_question_task.question_filename == NULL

1295

or not add_to_queue(queue, cancel_old_question_task)){

1296

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

1297

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

1298

cleanup_task(&cancel_old_question_task);

1299

return;

1300

}

1301

}

1302

}

1303

1304

__attribute__((nonnull))

1305

void cancel_old_question(const task_context task,

1306

task_queue *const queue){

1307

char *const question_filename = task.question_filename;

1308

string_set *const cancelled_filenames = task.cancelled_filenames;

1309

const mono_microsecs notafter = task.notafter;

1310

const mono_microsecs *const current_time = task.current_time;

1311

1312

if(*current_time >= notafter){

1313

if(not string_set_add(cancelled_filenames, question_filename)){

1314

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

1315

question_filename);

1316

}

1317

cleanup_task(&task);

1318

return;

1319

}

1320

1321

if(not add_to_queue(queue, task)){

1322

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

1323

"%s to queue", question_filename);

1324

cleanup_task(&task);

1325

return;

1326

}

1327

1328

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

1329

queue->next_run = notafter;

1330

}

1331

}

1332

1333

__attribute__((nonnull))

1334

void connect_question_socket(const task_context task,

1335

task_queue *const queue){

1336

char *const question_filename = task.question_filename;

1337

char *const filename = task.filename;

1338

const int epoll_fd = task.epoll_fd;

1339

buffer *const password = task.password;

1340

string_set *const cancelled_filenames = task.cancelled_filenames;

1341

bool *const mandos_client_exited = task.mandos_client_exited;

1342

bool *const password_is_read = task.password_is_read;

1343

const mono_microsecs *const current_time = task.current_time;

1344

1345

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

1346

1347

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

1348

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

1349

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

1350

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

1351

if(not string_set_add(cancelled_filenames, question_filename)){

1352

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

1353

question_filename);

1354

}

1355

cleanup_task(&task);

1356

return;

1357

}

1358

1359

const int fd = socket(PF_LOCAL, SOCK_DGRAM

1360

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

1361

if(fd < 0){

1362

error(0, errno,

1363

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

1364

if(not add_to_queue(queue, task)){

1365

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

1366

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

1367

filename);

1368

cleanup_task(&task);

1369

} else {

1370

/* Force the added task (connect_question_socket) to run

1371

immediately */

1372

queue->next_run = 1;

1373

}

1374

return;

1375

}

1376

1377

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

1378

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

1379

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

1380

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

1381

if(not add_to_queue(queue, task)){

1382

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

1383

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

1384

filename);

1385

cleanup_task(&task);

1386

} else {

1387

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

1388

at most one second from now */

1389

if((queue->next_run == 0)

1390

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

1391

queue->next_run = *current_time + 1000000;

1392

}

1393

}

1394

return;

1395

}

1396

1397

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

1398

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

1399

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

1400

filename);

1401

}

1402

1403

/* Add the fd to the epoll set */

1404

if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1405

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

1406

!= 0){

1407

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

1408

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

1409

if(not add_to_queue(queue, task)){

1410

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

1411

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

1412

filename);

1413

cleanup_task(&task);

1414

} else {

1415

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

1416

at most one second from now */

1417

if((queue->next_run == 0)

1418

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

1419

queue->next_run = *current_time + 1000000;

1420

}

1421

}

1422

return;

1423

}

1424

1425

/* add task send_password_to_socket to queue */

1426

const task_context send_password_to_socket_task = {

1427

.func=send_password_to_socket,

1428

.question_filename=question_filename,

1429

.filename=filename,

1430

.epoll_fd=epoll_fd,

1431

.fd=fd,

1432

.password=password,

1433

.cancelled_filenames=cancelled_filenames,

1434

.mandos_client_exited=mandos_client_exited,

1435

.password_is_read=password_is_read,

1436

.current_time=current_time,

1437

};

1438

1439

if(not add_to_queue(queue, send_password_to_socket_task)){

1440

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

1441

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

1442

question_filename, filename);

1443

cleanup_task(&send_password_to_socket_task);

1444

}

1445

}

1446

1447

__attribute__((nonnull))

1448

void send_password_to_socket(const task_context task,

1449

task_queue *const queue){

1450

char *const question_filename=task.question_filename;

1451

char *const filename=task.filename;

1452

const int epoll_fd=task.epoll_fd;

1453

const int fd=task.fd;

1454

buffer *const password=task.password;

1455

string_set *const cancelled_filenames=task.cancelled_filenames;

1456

bool *const mandos_client_exited = task.mandos_client_exited;

1457

bool *const password_is_read = task.password_is_read;

1458

const mono_microsecs *const current_time = task.current_time;

1459

1460

if(*mandos_client_exited and *password_is_read){

1461

1462

const size_t send_buffer_length = password->length + 2;

1463

char *send_buffer = malloc(send_buffer_length);

1464

if(send_buffer == NULL){

1465

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

1466

} else {

1467

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

1468

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

1469

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

1470

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

1471

" buffer");

1472

}

1473

}

1474

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

1475

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

1476

depending on whether the password entry was successful or

1477

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

1478

your message.

1479

1480

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

1481

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

1482

*/

1483

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

1484

/* Always add an extra NUL */

1485

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

1486

if(password->length > 0){

1487

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

1488

}

1489

errno = 0;

1490

ssize_t ssret = send(fd, send_buffer, send_buffer_length,

1491

MSG_NOSIGNAL);

1492

const error_t saved_errno = errno;

1493

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

1494

explicit_bzero(send_buffer, send_buffer_length);

1495

#else

1496

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

1497

#endif

1498

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

1499

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

1500

}

1501

free(send_buffer);

1502

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

1503

switch(saved_errno){

1504

case EINTR:

1505

case ENOBUFS:

1506

case ENOMEM:

1507

case EADDRINUSE:

1508

case ECONNREFUSED:

1509

case ECONNRESET:

1510

case ENOENT:

1511

case ETOOMANYREFS:

1512

case EAGAIN:

1513

/* Retry, below */

1514

break;

1515

case EMSGSIZE:

1516

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

1517

(uintmax_t)password->length);

1518

#if __GNUC__ < 7

1519

/* FALLTHROUGH */

1520

#else

1521

__attribute__((fallthrough));

1522

#endif

1523

case 0:

1524

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

1525

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

1526

}

1527

#if __GNUC__ < 7

1528

/* FALLTHROUGH */

1529

#else

1530

__attribute__((fallthrough));

1531

#endif

1532

default:

1533

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

1534

filename);

1535

if(not string_set_add(cancelled_filenames,

1536

question_filename)){

1537

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

1538

question_filename);

1539

}

1540

cleanup_task(&task);

1541

return;

1542

}

1543

} else {

1544

/* Success */

1545

cleanup_task(&task);

1546

return;

1547

}

1548

}

1549

}

1550

1551

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

1552

1553

if(not add_to_queue(queue, task)){

1554

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

1555

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

1556

filename);

1557

cleanup_task(&task);

1558

}

1559

1560

/* Add the fd to the epoll set */

1561

if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1562

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

1563

!= 0){

1564

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

1565

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

1566

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

1567

most one second from now */

1568

if((queue->next_run == 0)

1569

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

1570

queue->next_run = *current_time + 1000000;

1571

}

1572

}

1573

}

1574

1575

__attribute__((warn_unused_result))

1576

bool add_existing_questions(task_queue *const queue,

1577

const int epoll_fd,

1578

buffer *const password,

1579

string_set *cancelled_filenames,

1580

const mono_microsecs *const current_time,

1581

bool *const mandos_client_exited,

1582

bool *const password_is_read,

1583

const char *const dirname){

1584

__attribute__((cleanup(cleanup_string)))

1585

char *dir_pattern = NULL;

1586

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

1587

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

1588

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

1589

dirname);

1590

return false;

1591

}

1592

__attribute__((cleanup(globfree)))

1593

glob_t question_filenames = {};

1594

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

1595

NULL, &question_filenames)){

1596

case GLOB_ABORTED:

1597

default:

1598

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

1599

return false;

1600

case GLOB_NOMATCH:

1601

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

1602

return false;

1603

case GLOB_NOSPACE:

1604

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

1605

" names in %s", dirname);

1606

#if __GNUC__ < 7

1607

/* FALLTHROUGH */

1608

#else

1609

__attribute__((fallthrough));

1610

#endif

1611

case 0:

1612

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

1613

char *const question_filename = strdup(question_filenames

1614

.gl_pathv[i]);

1615

const task_context task = {

1616

.func=open_and_parse_question,

1617

.epoll_fd=epoll_fd,

1618

.question_filename=question_filename,

1619

.filename=question_filename,

1620

.password=password,

1621

.cancelled_filenames=cancelled_filenames,

1622

.current_time=current_time,

1623

.mandos_client_exited=mandos_client_exited,

1624

.password_is_read=password_is_read,

1625

};

1626

1627

if(question_filename == NULL

1628

or not add_to_queue(queue, task)){

1629

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

1630

" file %s to queue",

1631

question_filenames.gl_pathv[i]);

1632

free(question_filename);

1633

} else {

1634

queue->next_run = 1;

1635

}

1636

}

1637

return true;

1638

}

1639

}

1640

1641

__attribute__((nonnull, warn_unused_result))

1642

bool wait_for_event(const int epoll_fd,

1643

const mono_microsecs queue_next_run,

1644

const mono_microsecs current_time){

1645

__attribute__((const))

1646

int milliseconds_to_wait(const mono_microsecs currtime,

1647

const mono_microsecs nextrun){

1648

if(currtime >= nextrun){

1649

return 0;

1650

}

1651

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

1652

if(wait_time_ms > (uintmax_t)INT_MAX){

1653

return INT_MAX;

1654

}

1655

return (int)wait_time_ms;

1656

}

1657

1658

const int wait_time_ms = milliseconds_to_wait(current_time,

1659

queue_next_run);

1660

1661

/* Prepare unblocking of SIGCHLD during epoll_pwait */

1662

sigset_t temporary_unblocked_sigmask;

1663

/* Get current signal mask */

1664

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

1665

return false;

1666

}

1667

/* Remove SIGCHLD from the signal mask */

1668

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

1669

return false;

1670

}

1671

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

1672

int ret = epoll_pwait(epoll_fd, events,

1673

sizeof(events) / sizeof(struct epoll_event),

1674

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

1675

&temporary_unblocked_sigmask);

1676

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

1677

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

1678

" ...", epoll_fd,

1679

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

1680

return false;

1681

}

1682

return clear_all_fds_from_epoll_set(epoll_fd);

1683

}

1684

1685

bool clear_all_fds_from_epoll_set(const int epoll_fd){

1686

/* Create a new empty epoll set */

1687

__attribute__((cleanup(cleanup_close)))

1688

const int new_epoll_fd = epoll_create1(EPOLL_CLOEXEC);

1689

if(new_epoll_fd < 0){

1690

return false;

1691

}

1692

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

1693

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

1694

return false;

1695

}

1696

return true;

1697

}

1698

1699

__attribute__((nonnull, warn_unused_result))

1700

bool run_queue(task_queue **const queue,

1701

string_set *const cancelled_filenames,

1702

bool *const quit_now){

1703

1704

task_queue *new_queue = create_queue();

1705

if(new_queue == NULL){

1706

return false;

1707

}

1708

1709

__attribute__((cleanup(string_set_clear)))

1710

string_set old_cancelled_filenames = {};

1711

string_set_swap(cancelled_filenames, &old_cancelled_filenames);

1712

1713

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

1714

loop in case we aborted in the middle */

1715

size_t i;

1716

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

1717

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

1718

const char *const question_filename = task->question_filename;

1719

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

1720

if(question_filename != NULL

1721

and string_set_contains(old_cancelled_filenames,

1722

question_filename)){

1723

cleanup_task(task);

1724

continue;

1725

}

1726

task->func(*task, new_queue);

1727

}

1728

1729

if(*quit_now){

1730

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

1731

remaining tasks in the current queue */

1732

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

1733

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

1734

}

1735

free_queue(*queue);

1736

*queue = new_queue;

1737

new_queue = NULL;

1738

return false;

1739

}

1740

free_queue(*queue);

1741

*queue = new_queue;

1742

new_queue = NULL;

1743

1744

return true;

1745

}

1746

1747

/* End of regular code section */

1748

1749

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

1750

1751

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

1752

teardown functions */

1753

typedef struct {

1754

struct sigaction orig_sigaction;

1755

sigset_t orig_sigmask;

1756

} test_fixture;

1757

1758

static void test_setup(test_fixture *fixture,

1759

__attribute__((unused))

1760

gconstpointer user_data){

1761

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

1762

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

1763

}

1764

1765

static void test_teardown(test_fixture *fixture,

1766

__attribute__((unused))

1767

gconstpointer user_data){

1768

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

1769

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

1770

}

1771

1772

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

1773

__attribute__((pure, nonnull, warn_unused_result))

1774

static task_context *find_matching_task(const task_queue *const queue,

1775

const task_context task){

1776

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

1777

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

1778

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

1779

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

1780

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

1781

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

1782

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

1783

1784

/* task_func *const func */

1785

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

1786

continue;

1787

}

1788

/* char *const question_filename; */

1789

if(task.question_filename != NULL

1790

and (current_task->question_filename == NULL

1791

or strcmp(current_task->question_filename,

1792

task.question_filename) != 0)){

1793

continue;

1794

}

1795

/* const pid_t pid; */

1796

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

1797

continue;

1798

}

1799

/* const int epoll_fd; */

1800

if(task.epoll_fd != 0

1801

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

1802

continue;

1803

}

1804

/* bool *const quit_now; */

1805

if(task.quit_now != NULL

1806

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

1807

continue;

1808

}

1809

/* const int fd; */

1810

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

1811

continue;

1812

}

1813

/* bool *const mandos_client_exited; */

1814

if(task.mandos_client_exited != NULL

1815

and current_task->mandos_client_exited

1816

!= task.mandos_client_exited){

1817

continue;

1818

}

1819

/* buffer *const password; */

1820

if(task.password != NULL

1821

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

1822

continue;

1823

}

1824

/* bool *const password_is_read; */

1825

if(task.password_is_read != NULL

1826

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

1827

continue;

1828

}

1829

/* char *filename; */

1830

if(task.filename != NULL

1831

and (current_task->filename == NULL

1832

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

1833

continue;

1834

}

1835

/* string_set *const cancelled_filenames; */

1836

if(task.cancelled_filenames != NULL

1837

and current_task->cancelled_filenames

1838

!= task.cancelled_filenames){

1839

continue;

1840

}

1841

/* const mono_microsecs notafter; */

1842

if(task.notafter != 0

1843

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

1844

continue;

1845

}

1846

/* const mono_microsecs *const current_time; */

1847

if(task.current_time != NULL

1848

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

1849

continue;

1850

}

1851

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

1852

return current_task;

1853

}

1854

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

1855

return NULL;

1856

}

1857

1858

static void test_create_queue(__attribute__((unused))

1859

test_fixture *fixture,

1860

__attribute__((unused))

1861

gconstpointer user_data){

1862

__attribute__((cleanup(cleanup_queue)))

1863

task_queue *const queue = create_queue();

1864

g_assert_nonnull(queue);

1865

g_assert_null(queue->tasks);

1866

g_assert_true(queue->length == 0);

1867

g_assert_true(queue->next_run == 0);

1868

}

1869

1870

static task_func dummy_func;

1871

1872

static void test_add_to_queue(__attribute__((unused))

1873

test_fixture *fixture,

1874

__attribute__((unused))

1875

gconstpointer user_data){

1876

__attribute__((cleanup(cleanup_queue)))

1877

task_queue *queue = create_queue();

1878

g_assert_nonnull(queue);

1879

1880

g_assert_true(add_to_queue(queue,

1881

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

1882

g_assert_true(queue->length == 1);

1883

g_assert_nonnull(queue->tasks);

1884

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

1885

}

1886

1887

static void dummy_func(__attribute__((unused))

1888

const task_context task,

1889

__attribute__((unused))

1890

task_queue *const queue){

1891

}

1892

1893

static void test_queue_has_question_empty(__attribute__((unused))

1894

test_fixture *fixture,

1895

__attribute__((unused))

1896

gconstpointer user_data){

1897

__attribute__((cleanup(cleanup_queue)))

1898

task_queue *queue = create_queue();

1899

g_assert_nonnull(queue);

1900

g_assert_false(queue_has_question(queue));

1901

}

1902

1903

static void test_queue_has_question_false(__attribute__((unused))

1904

test_fixture *fixture,

1905

__attribute__((unused))

1906

gconstpointer user_data){

1907

__attribute__((cleanup(cleanup_queue)))

1908

task_queue *queue = create_queue();

1909

g_assert_nonnull(queue);

1910

g_assert_true(add_to_queue(queue,

1911

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

1912

g_assert_false(queue_has_question(queue));

1913

}

1914

1915

static void test_queue_has_question_true(__attribute__((unused))

1916

test_fixture *fixture,

1917

__attribute__((unused))

1918

gconstpointer user_data){

1919

__attribute__((cleanup(cleanup_queue)))

1920

task_queue *queue = create_queue();

1921

g_assert_nonnull(queue);

1922

char *const question_filename

1923

= strdup("/nonexistent/question_filename");

1924

g_assert_nonnull(question_filename);

1925

task_context task = {

1926

.func=dummy_func,

1927

.question_filename=question_filename,

1928

};

1929

g_assert_true(add_to_queue(queue, task));

1930

g_assert_true(queue_has_question(queue));

1931

}

1932

1933

static void test_queue_has_question_false2(__attribute__((unused))

1934

test_fixture *fixture,

1935

__attribute__((unused))

1936

gconstpointer user_data){

1937

__attribute__((cleanup(cleanup_queue)))

1938

task_queue *queue = create_queue();

1939

g_assert_nonnull(queue);

1940

task_context task = { .func=dummy_func };

1941

g_assert_true(add_to_queue(queue, task));

1942

g_assert_true(add_to_queue(queue, task));

1943

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

1944

g_assert_false(queue_has_question(queue));

1945

}

1946

1947

static void test_queue_has_question_true2(__attribute__((unused))

1948

test_fixture *fixture,

1949

__attribute__((unused))

1950

gconstpointer user_data){

1951

__attribute__((cleanup(cleanup_queue)))

1952

task_queue *queue = create_queue();

1953

g_assert_nonnull(queue);

1954

task_context task1 = { .func=dummy_func };

1955

g_assert_true(add_to_queue(queue, task1));

1956

char *const question_filename

1957

= strdup("/nonexistent/question_filename");

1958

g_assert_nonnull(question_filename);

1959

task_context task2 = {

1960

.func=dummy_func,

1961

.question_filename=question_filename,

1962

};

1963

g_assert_true(add_to_queue(queue, task2));

1964

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

1965

g_assert_true(queue_has_question(queue));

1966

}

1967

1968

static void test_cleanup_buffer(__attribute__((unused))

1969

test_fixture *fixture,

1970

__attribute__((unused))

1971

gconstpointer user_data){

1972

buffer buf = {};

1973

1974

const size_t buffersize = 10;

1975

1976

buf.data = malloc(buffersize);

1977

g_assert_nonnull(buf.data);

1978

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

1979

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

1980

}

1981

1982

cleanup_buffer(&buf);

1983

g_assert_null(buf.data);

1984

}

1985

1986

static

1987

void test_string_set_new_set_contains_nothing(__attribute__((unused))

1988

test_fixture *fixture,

1989

__attribute__((unused))

1990

gconstpointer

1991

user_data){

1992

__attribute__((cleanup(string_set_clear)))

1993

string_set set = {};

1994

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

1995

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

1996

}

1997

1998

static void

1999

test_string_set_with_added_string_contains_it(__attribute__((unused))

2000

test_fixture *fixture,

2001

__attribute__((unused))

2002

gconstpointer

2003

user_data){

2004

__attribute__((cleanup(string_set_clear)))

2005

string_set set = {};

2006

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

2007

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

2008

}

2009

2010

static void

2011

test_string_set_cleared_does_not_contain_str(__attribute__((unused))

2012

test_fixture *fixture,

2013

__attribute__((unused))

2014

gconstpointer user_data){

2015

__attribute__((cleanup(string_set_clear)))

2016

string_set set = {};

2017

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

2018

string_set_clear(&set);

2019

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

2020

}

2021

2022

static

2023

void test_string_set_swap_one_with_empty(__attribute__((unused))

2024

test_fixture *fixture,

2025

__attribute__((unused))

2026

gconstpointer user_data){

2027

__attribute__((cleanup(string_set_clear)))

2028

string_set set1 = {};

2029

__attribute__((cleanup(string_set_clear)))

2030

string_set set2 = {};

2031

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

2032

string_set_swap(&set1, &set2);

2033

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

2034

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

2035

}

2036

2037

static

2038

void test_string_set_swap_empty_with_one(__attribute__((unused))

2039

test_fixture *fixture,

2040

__attribute__((unused))

2041

gconstpointer user_data){

2042

__attribute__((cleanup(string_set_clear)))

2043

string_set set1 = {};

2044

__attribute__((cleanup(string_set_clear)))

2045

string_set set2 = {};

2046

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

2047

string_set_swap(&set1, &set2);

2048

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

2049

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

2050

}

2051

2052

static void test_string_set_swap_one_with_one(__attribute__((unused))

2053

test_fixture *fixture,

2054

__attribute__((unused))

2055

gconstpointer

2056

user_data){

2057

__attribute__((cleanup(string_set_clear)))

2058

string_set set1 = {};

2059

__attribute__((cleanup(string_set_clear)))

2060

string_set set2 = {};

2061

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

2062

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

2063

string_set_swap(&set1, &set2);

2064

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

2065

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

2066

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

2067

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

2068

}

2069

2070

static bool fd_has_cloexec_and_nonblock(const int);

2071

2072

static bool epoll_set_contains(int, int, uint32_t);

2073

2074

static void test_start_mandos_client(test_fixture *fixture,

2075

__attribute__((unused))

2076

gconstpointer user_data){

2077

2078

bool mandos_client_exited = false;

2079

bool quit_now = false;

2080

__attribute__((cleanup(cleanup_close)))

2081

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2082

g_assert_cmpint(epoll_fd, >=, 0);

2083

__attribute__((cleanup(cleanup_queue)))

2084

task_queue *queue = create_queue();

2085

g_assert_nonnull(queue);

2086

buffer password = {};

2087

bool password_is_read = false;

2088

const char helper_directory[] = "/nonexistent";

2089

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

2090

2091

g_assert_true(start_mandos_client(queue, epoll_fd,

2092

&mandos_client_exited, &quit_now,

2093

&password, &password_is_read,

2094

&fixture->orig_sigaction,

2095

fixture->orig_sigmask,

2096

helper_directory, 0, 0, argv));

2097

2098

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

2099

2100

const task_context *const added_wait_task

2101

= find_matching_task(queue, (task_context){

2102

.func=wait_for_mandos_client_exit,

2103

.mandos_client_exited=&mandos_client_exited,

2104

.quit_now=&quit_now,

2105

});

2106

g_assert_nonnull(added_wait_task);

2107

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

2108

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

2109

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

2110

2111

const task_context *const added_read_task

2112

= find_matching_task(queue, (task_context){

2113

.func=read_mandos_client_output,

2114

.epoll_fd=epoll_fd,

2115

.password=&password,

2116

.password_is_read=&password_is_read,

2117

.quit_now=&quit_now,

2118

});

2119

g_assert_nonnull(added_read_task);

2120

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

2121

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

2122

g_assert_true(epoll_set_contains(epoll_fd, added_read_task->fd,

2123

EPOLLIN | EPOLLRDHUP));

2124

}

2125

2126

static bool fd_has_cloexec_and_nonblock(const int fd){

2127

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

2128

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

2129

return ((socket_fd_flags >= 0)

2130

and (socket_fd_flags & FD_CLOEXEC)

2131

and (socket_file_flags >= 0)

2132

and (socket_file_flags & O_NONBLOCK));

2133

}

2134

2135

__attribute__((const))

2136

bool is_privileged(void){

2137

uid_t user = getuid() + 1;

2138

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

2139

user++;

2140

}

2141

gid_t group = getuid() + 1;

2142

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

2143

group++;

2144

}

2145

const pid_t pid = fork();

2146

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

2147

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

2148

if(errno != EPERM){

2149

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

2150

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

2151

}

2152

exit(EXIT_FAILURE);

2153

}

2154

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

2155

if(errno != EPERM){

2156

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

2157

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

2158

}

2159

exit(EXIT_FAILURE);

2160

}

2161

exit(EXIT_SUCCESS);

2162

}

2163

int status;

2164

waitpid(pid, &status, 0);

2165

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

2166

return true;

2167

}

2168

return false;

2169

}

2170

2171

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

2172

/* Only scan for events in this eventmask */

2173

const uint32_t eventmask = EPOLLIN | EPOLLOUT | EPOLLRDHUP;

2174

__attribute__((cleanup(cleanup_string)))

2175

char *fdinfo_name = NULL;

2176

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

2177

g_assert_cmpint(ret, >, 0);

2178

g_assert_nonnull(fdinfo_name);

2179

2180

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

2181

g_assert_nonnull(fdinfo);

2182

uint32_t reported_events;

2183

buffer line = {};

2184

int found_fd = -1;

2185

2186

do {

2187

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

2188

break;

2189

}

2190

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

2191

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

2192

&found_fd, &reported_events) == 2){

2193

if(found_fd == fd){

2194

break;

2195

}

2196

}

2197

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

2198

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

2199

free(line.data);

2200

if(found_fd != fd){

2201

return false;

2202

}

2203

2204

if(events == 0){

2205

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

2206

return true;

2207

}

2208

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

2209

}

2210

2211

static void test_start_mandos_client_execv(test_fixture *fixture,

2212

__attribute__((unused))

2213

gconstpointer user_data){

2214

bool mandos_client_exited = false;

2215

bool quit_now = false;

2216

__attribute__((cleanup(cleanup_close)))

2217

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2218

g_assert_cmpint(epoll_fd, >=, 0);

2219

__attribute__((cleanup(cleanup_queue)))

2220

task_queue *queue = create_queue();

2221

g_assert_nonnull(queue);

2222

__attribute__((cleanup(cleanup_buffer)))

2223

buffer password = {};

2224

const char helper_directory[] = "/nonexistent";

2225

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

2226

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

2227

2228

{

2229

__attribute__((cleanup(cleanup_close)))

2230

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

2231

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2232

g_assert_cmpint(devnull_fd, >=, 0);

2233

__attribute__((cleanup(cleanup_close)))

2234

const int real_stderr_fd = dup(STDERR_FILENO);

2235

g_assert_cmpint(real_stderr_fd, >=, 0);

2236

dup2(devnull_fd, STDERR_FILENO);

2237

2238

const bool success = start_mandos_client(queue, epoll_fd,

2239

&mandos_client_exited,

2240

&quit_now,

2241

&password,

2242

(bool[]){false},

2243

&fixture->orig_sigaction,

2244

fixture->orig_sigmask,

2245

helper_directory, 0, 0,

2246

argv);

2247

dup2(real_stderr_fd, STDERR_FILENO);

2248

g_assert_true(success);

2249

}

2250

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

2251

2252

struct timespec starttime, currtime;

2253

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

2254

do {

2255

queue->next_run = 0;

2256

string_set cancelled_filenames = {};

2257

2258

{

2259

__attribute__((cleanup(cleanup_close)))

2260

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

2261

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2262

g_assert_cmpint(devnull_fd, >=, 0);

2263

__attribute__((cleanup(cleanup_close)))

2264

const int real_stderr_fd = dup(STDERR_FILENO);

2265

g_assert_cmpint(real_stderr_fd, >=, 0);

2266

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

2267

dup2(devnull_fd, STDERR_FILENO);

2268

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

2269

&quit_now);

2270

dup2(real_stderr_fd, STDERR_FILENO);

2271

if(not success){

2272

break;

2273

}

2274

}

2275

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

2276

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

2277

and (not quit_now)

2278

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

2279

2280

g_assert_true(quit_now);

2281

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

2282

g_assert_true(mandos_client_exited);

2283

}

2284

2285

static void test_start_mandos_client_suid_euid(test_fixture *fixture,

2286

__attribute__((unused))

2287

gconstpointer

2288

user_data){

2289

if(not is_privileged()){

2290

g_test_skip("Not privileged");

2291

return;

2292

}

2293

2294

bool mandos_client_exited = false;

2295

bool quit_now = false;

2296

__attribute__((cleanup(cleanup_close)))

2297

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2298

g_assert_cmpint(epoll_fd, >=, 0);

2299

__attribute__((cleanup(cleanup_queue)))

2300

task_queue *queue = create_queue();

2301

g_assert_nonnull(queue);

2302

__attribute__((cleanup(cleanup_buffer)))

2303

buffer password = {};

2304

bool password_is_read = false;

2305

const char helper_directory[] = "/nonexistent";

2306

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

2307

uid_t user = 1000;

2308

gid_t group = 1001;

2309

2310

const bool success = start_mandos_client(queue, epoll_fd,

2311

&mandos_client_exited,

2312

&quit_now, &password,

2313

&password_is_read,

2314

&fixture->orig_sigaction,

2315

fixture->orig_sigmask,

2316

helper_directory, user,

2317

group, argv);

2318

g_assert_true(success);

2319

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

2320

2321

struct timespec starttime, currtime;

2322

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

2323

do {

2324

queue->next_run = 0;

2325

string_set cancelled_filenames = {};

2326

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

2327

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

2328

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

2329

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

2330

and (not quit_now)

2331

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

2332

2333

g_assert_false(quit_now);

2334

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

2335

g_assert_true(mandos_client_exited);

2336

2337

g_assert_true(password_is_read);

2338

g_assert_nonnull(password.data);

2339

2340

uintmax_t id;

2341

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

2342

==, 1);

2343

g_assert_true((uid_t)id == id);

2344

2345

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

2346

}

2347

2348

static void test_start_mandos_client_suid_egid(test_fixture *fixture,

2349

__attribute__((unused))

2350

gconstpointer

2351

user_data){

2352

if(not is_privileged()){

2353

g_test_skip("Not privileged");

2354

return;

2355

}

2356

2357

bool mandos_client_exited = false;

2358

bool quit_now = false;

2359

__attribute__((cleanup(cleanup_close)))

2360

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2361

g_assert_cmpint(epoll_fd, >=, 0);

2362

__attribute__((cleanup(cleanup_queue)))

2363

task_queue *queue = create_queue();

2364

g_assert_nonnull(queue);

2365

__attribute__((cleanup(cleanup_buffer)))

2366

buffer password = {};

2367

bool password_is_read = false;

2368

const char helper_directory[] = "/nonexistent";

2369

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

2370

uid_t user = 1000;

2371

gid_t group = 1001;

2372

2373

const bool success = start_mandos_client(queue, epoll_fd,

2374

&mandos_client_exited,

2375

&quit_now, &password,

2376

&password_is_read,

2377

&fixture->orig_sigaction,

2378

fixture->orig_sigmask,

2379

helper_directory, user,

2380

group, argv);

2381

g_assert_true(success);

2382

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

2383

2384

struct timespec starttime, currtime;

2385

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

2386

do {

2387

queue->next_run = 0;

2388

string_set cancelled_filenames = {};

2389

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

2390

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

2391

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

2392

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

2393

and (not quit_now)

2394

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

2395

2396

g_assert_false(quit_now);

2397

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

2398

g_assert_true(mandos_client_exited);

2399

2400

g_assert_true(password_is_read);

2401

g_assert_nonnull(password.data);

2402

2403

uintmax_t id;

2404

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

2405

==, 1);

2406

g_assert_true((gid_t)id == id);

2407

2408

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

2409

}

2410

2411

static void test_start_mandos_client_suid_ruid(test_fixture *fixture,

2412

__attribute__((unused))

2413

gconstpointer

2414

user_data){

2415

if(not is_privileged()){

2416

g_test_skip("Not privileged");

2417

return;

2418

}

2419

2420

bool mandos_client_exited = false;

2421

bool quit_now = false;

2422

__attribute__((cleanup(cleanup_close)))

2423

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2424

g_assert_cmpint(epoll_fd, >=, 0);

2425

__attribute__((cleanup(cleanup_queue)))

2426

task_queue *queue = create_queue();

2427

g_assert_nonnull(queue);

2428

__attribute__((cleanup(cleanup_buffer)))

2429

buffer password = {};

2430

bool password_is_read = false;

2431

const char helper_directory[] = "/nonexistent";

2432

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

2433

NULL };

2434

uid_t user = 1000;

2435

gid_t group = 1001;

2436

2437

const bool success = start_mandos_client(queue, epoll_fd,

2438

&mandos_client_exited,

2439

&quit_now, &password,

2440

&password_is_read,

2441

&fixture->orig_sigaction,

2442

fixture->orig_sigmask,

2443

helper_directory, user,

2444

group, argv);

2445

g_assert_true(success);

2446

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

2447

2448

struct timespec starttime, currtime;

2449

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

2450

do {

2451

queue->next_run = 0;

2452

string_set cancelled_filenames = {};

2453

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

2454

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

2455

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

2456

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

2457

and (not quit_now)

2458

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

2459

2460

g_assert_false(quit_now);

2461

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

2462

g_assert_true(mandos_client_exited);

2463

2464

g_assert_true(password_is_read);

2465

g_assert_nonnull(password.data);

2466

2467

uintmax_t id;

2468

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

2469

==, 1);

2470

g_assert_true((uid_t)id == id);

2471

2472

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

2473

}

2474

2475

static void test_start_mandos_client_suid_rgid(test_fixture *fixture,

2476

__attribute__((unused))

2477

gconstpointer

2478

user_data){

2479

if(not is_privileged()){

2480

g_test_skip("Not privileged");

2481

return;

2482

}

2483

2484

bool mandos_client_exited = false;

2485

bool quit_now = false;

2486

__attribute__((cleanup(cleanup_close)))

2487

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2488

g_assert_cmpint(epoll_fd, >=, 0);

2489

__attribute__((cleanup(cleanup_queue)))

2490

task_queue *queue = create_queue();

2491

g_assert_nonnull(queue);

2492

__attribute__((cleanup(cleanup_buffer)))

2493

buffer password = {};

2494

bool password_is_read = false;

2495

const char helper_directory[] = "/nonexistent";

2496

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

2497

NULL };

2498

uid_t user = 1000;

2499

gid_t group = 1001;

2500

2501

const bool success = start_mandos_client(queue, epoll_fd,

2502

&mandos_client_exited,

2503

&quit_now, &password,

2504

&password_is_read,

2505

&fixture->orig_sigaction,

2506

fixture->orig_sigmask,

2507

helper_directory, user,

2508

group, argv);

2509

g_assert_true(success);

2510

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

2511

2512

struct timespec starttime, currtime;

2513

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

2514

do {

2515

queue->next_run = 0;

2516

string_set cancelled_filenames = {};

2517

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

2518

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

2519

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

2520

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

2521

and (not quit_now)

2522

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

2523

2524

g_assert_false(quit_now);

2525

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

2526

g_assert_true(mandos_client_exited);

2527

2528

g_assert_true(password_is_read);

2529

g_assert_nonnull(password.data);

2530

2531

uintmax_t id;

2532

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

2533

==, 1);

2534

g_assert_true((gid_t)id == id);

2535

2536

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

2537

}

2538

2539

static void test_start_mandos_client_read(test_fixture *fixture,

2540

__attribute__((unused))

2541

gconstpointer user_data){

2542

bool mandos_client_exited = false;

2543

bool quit_now = false;

2544

__attribute__((cleanup(cleanup_close)))

2545

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2546

g_assert_cmpint(epoll_fd, >=, 0);

2547

__attribute__((cleanup(cleanup_queue)))

2548

task_queue *queue = create_queue();

2549

g_assert_nonnull(queue);

2550

__attribute__((cleanup(cleanup_buffer)))

2551

buffer password = {};

2552

bool password_is_read = false;

2553

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

2554

const char helper_directory[] = "/nonexistent";

2555

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

2556

NULL };

2557

2558

const bool success = start_mandos_client(queue, epoll_fd,

2559

&mandos_client_exited,

2560

&quit_now, &password,

2561

&password_is_read,

2562

&fixture->orig_sigaction,

2563

fixture->orig_sigmask,

2564

helper_directory, 0, 0,

2565

argv);

2566

g_assert_true(success);

2567

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

2568

2569

struct timespec starttime, currtime;

2570

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

2571

do {

2572

queue->next_run = 0;

2573

string_set cancelled_filenames = {};

2574

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

2575

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

2576

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

2577

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

2578

and (not quit_now)

2579

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

2580

2581

g_assert_false(quit_now);

2582

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

2583

g_assert_true(mandos_client_exited);

2584

2585

g_assert_true(password_is_read);

2586

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

2587

sizeof(dummy_test_password)-1);

2588

g_assert_nonnull(password.data);

2589

g_assert_cmpint(memcmp(dummy_test_password, password.data,

2590

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

2591

}

2592

2593

static

2594

void test_start_mandos_client_helper_directory(test_fixture *fixture,

2595

__attribute__((unused))

2596

gconstpointer

2597

user_data){

2598

bool mandos_client_exited = false;

2599

bool quit_now = false;

2600

__attribute__((cleanup(cleanup_close)))

2601

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2602

g_assert_cmpint(epoll_fd, >=, 0);

2603

__attribute__((cleanup(cleanup_queue)))

2604

task_queue *queue = create_queue();

2605

g_assert_nonnull(queue);

2606

__attribute__((cleanup(cleanup_buffer)))

2607

buffer password = {};

2608

bool password_is_read = false;

2609

const char helper_directory[] = "/nonexistent";

2610

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

2611

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

2612

2613

const bool success = start_mandos_client(queue, epoll_fd,

2614

&mandos_client_exited,

2615

&quit_now, &password,

2616

&password_is_read,

2617

&fixture->orig_sigaction,

2618

fixture->orig_sigmask,

2619

helper_directory, 0, 0,

2620

argv);

2621

g_assert_true(success);

2622

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

2623

2624

struct timespec starttime, currtime;

2625

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

2626

do {

2627

queue->next_run = 0;

2628

string_set cancelled_filenames = {};

2629

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

2630

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

2631

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

2632

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

2633

and (not quit_now)

2634

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

2635

2636

g_assert_false(quit_now);

2637

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

2638

g_assert_true(mandos_client_exited);

2639

2640

g_assert_true(password_is_read);

2641

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

2642

sizeof(helper_directory)-1);

2643

g_assert_nonnull(password.data);

2644

g_assert_cmpint(memcmp(helper_directory, password.data,

2645

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

2646

}

2647

2648

__attribute__((nonnull, warn_unused_result))

2649

static bool proc_status_sigblk_to_sigset(const char *const,

2650

sigset_t *const);

2651

2652

static void test_start_mandos_client_sigmask(test_fixture *fixture,

2653

__attribute__((unused))

2654

gconstpointer user_data){

2655

bool mandos_client_exited = false;

2656

bool quit_now = false;

2657

__attribute__((cleanup(cleanup_close)))

2658

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2659

g_assert_cmpint(epoll_fd, >=, 0);

2660

__attribute__((cleanup(cleanup_queue)))

2661

task_queue *queue = create_queue();

2662

g_assert_nonnull(queue);

2663

__attribute__((cleanup(cleanup_buffer)))

2664

buffer password = {};

2665

bool password_is_read = false;

2666

const char helper_directory[] = "/nonexistent";

2667

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

2668

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

2669

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

2670

2671

g_assert_true(start_mandos_client(queue, epoll_fd,

2672

&mandos_client_exited, &quit_now,

2673

&password, &password_is_read,

2674

&fixture->orig_sigaction,

2675

fixture->orig_sigmask,

2676

helper_directory, 0, 0, argv));

2677

2678

struct timespec starttime, currtime;

2679

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

2680

do {

2681

queue->next_run = 0;

2682

string_set cancelled_filenames = {};

2683

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

2684

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

2685

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

2686

} while((not (mandos_client_exited and password_is_read))

2687

and (not quit_now)

2688

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

2689

g_assert_true(mandos_client_exited);

2690

g_assert_true(password_is_read);

2691

2692

sigset_t parsed_sigmask;

2693

g_assert_true(proc_status_sigblk_to_sigset(password.data,

2694

&parsed_sigmask));

2695

2696

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

2697

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

2698

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

2699

g_assert_true(has_signal);

2700

} else {

2701

g_assert_false(has_signal);

2702

}

2703

}

2704

}

2705

2706

__attribute__((nonnull, warn_unused_result))

2707

static bool proc_status_sigblk_to_sigset(const char *const sigblk,

2708

sigset_t *const sigmask){

2709

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

2710

uintmax_t scanned_sigmask;

2711

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

2712

return false;

2713

}

2714

if(sigemptyset(sigmask) != 0){

2715

return false;

2716

}

2717

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

2718

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

2719

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

2720

return false;

2721

}

2722

}

2723

}

2724

return true;

2725

}

2726

2727

static void run_task_with_stderr_to_dev_null(const task_context task,

2728

task_queue *const queue);

2729

2730

static

2731

void test_wait_for_mandos_client_exit_badpid(__attribute__((unused))

2732

test_fixture *fixture,

2733

__attribute__((unused))

2734

gconstpointer user_data){

2735

2736

bool mandos_client_exited = false;

2737

bool quit_now = false;

2738

2739

__attribute__((cleanup(cleanup_queue)))

2740

task_queue *queue = create_queue();

2741

g_assert_nonnull(queue);

2742

const task_context task = {

2743

.func=wait_for_mandos_client_exit,

2744

.pid=1,

2745

.mandos_client_exited=&mandos_client_exited,

2746

.quit_now=&quit_now,

2747

};

2748

run_task_with_stderr_to_dev_null(task, queue);

2749

2750

g_assert_false(mandos_client_exited);

2751

g_assert_true(quit_now);

2752

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

2753

}

2754

2755

static void run_task_with_stderr_to_dev_null(const task_context task,

2756

task_queue *const queue){

2757

FILE *real_stderr = stderr;

2758

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

2759

g_assert_nonnull(devnull);

2760

2761

stderr = devnull;

2762

task.func(task, queue);

2763

stderr = real_stderr;

2764

2765

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

2766

}

2767

2768

static

2769

void test_wait_for_mandos_client_exit_noexit(test_fixture *fixture,

2770

__attribute__((unused))

2771

gconstpointer user_data){

2772

bool mandos_client_exited = false;

2773

bool quit_now = false;

2774

2775

pid_t create_eternal_process(void){

2776

const pid_t pid = fork();

2777

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

2778

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

2779

_exit(EXIT_FAILURE);

2780

}

2781

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

2782

_exit(EXIT_FAILURE);

2783

}

2784

while(true){

2785

pause();

2786

}

2787

}

2788

return pid;

2789

}

2790

pid_t pid = create_eternal_process();

2791

g_assert_true(pid != -1);

2792

2793

__attribute__((cleanup(cleanup_queue)))

2794

task_queue *queue = create_queue();

2795

g_assert_nonnull(queue);

2796

const task_context task = {

2797

.func=wait_for_mandos_client_exit,

2798

.pid=pid,

2799

.mandos_client_exited=&mandos_client_exited,

2800

.quit_now=&quit_now,

2801

};

2802

task.func(task, queue);

2803

2804

g_assert_false(mandos_client_exited);

2805

g_assert_false(quit_now);

2806

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

2807

2808

g_assert_nonnull(find_matching_task(queue, (task_context){

2809

.func=wait_for_mandos_client_exit,

2810

.pid=task.pid,

2811

.mandos_client_exited=&mandos_client_exited,

2812

.quit_now=&quit_now,

2813

}));

2814

}

2815

2816

static

2817

void test_wait_for_mandos_client_exit_success(test_fixture *fixture,

2818

__attribute__((unused))

2819

gconstpointer

2820

user_data){

2821

bool mandos_client_exited = false;

2822

bool quit_now = false;

2823

2824

pid_t create_successful_process(void){

2825

const pid_t pid = fork();

2826

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

2827

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

2828

_exit(EXIT_FAILURE);

2829

}

2830

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

2831

_exit(EXIT_FAILURE);

2832

}

2833

exit(EXIT_SUCCESS);

2834

}

2835

return pid;

2836

}

2837

const pid_t pid = create_successful_process();

2838

g_assert_true(pid != -1);

2839

2840

__attribute__((cleanup(cleanup_queue)))

2841

task_queue *queue = create_queue();

2842

g_assert_nonnull(queue);

2843

const task_context initial_task = {

2844

.func=wait_for_mandos_client_exit,

2845

.pid=pid,

2846

.mandos_client_exited=&mandos_client_exited,

2847

.quit_now=&quit_now,

2848

};

2849

g_assert_true(add_to_queue(queue, initial_task));

2850

2851

struct timespec starttime, currtime;

2852

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

2853

__attribute__((cleanup(cleanup_close)))

2854

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2855

do {

2856

queue->next_run = 0;

2857

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

2858

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

2859

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

2860

} while((not mandos_client_exited)

2861

and (not quit_now)

2862

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

2863

2864

g_assert_true(mandos_client_exited);

2865

g_assert_false(quit_now);

2866

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

2867

}

2868

2869

static

2870

void test_wait_for_mandos_client_exit_failure(test_fixture *fixture,

2871

__attribute__((unused))

2872

gconstpointer

2873

user_data){

2874

bool mandos_client_exited = false;

2875

bool quit_now = false;

2876

2877

pid_t create_failing_process(void){

2878

const pid_t pid = fork();

2879

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

2880

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

2881

_exit(EXIT_FAILURE);

2882

}

2883

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

2884

_exit(EXIT_FAILURE);

2885

}

2886

exit(EXIT_FAILURE);

2887

}

2888

return pid;

2889

}

2890

const pid_t pid = create_failing_process();

2891

g_assert_true(pid != -1);

2892

2893

__attribute__((cleanup(string_set_clear)))

2894

string_set cancelled_filenames = {};

2895

__attribute__((cleanup(cleanup_close)))

2896

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2897

g_assert_cmpint(epoll_fd, >=, 0);

2898

__attribute__((cleanup(cleanup_queue)))

2899

task_queue *queue = create_queue();

2900

g_assert_nonnull(queue);

2901

g_assert_true(add_to_queue(queue, (task_context){

2902

.func=wait_for_mandos_client_exit,

2903

.pid=pid,

2904

.mandos_client_exited=&mandos_client_exited,

2905

.quit_now=&quit_now,

2906

}));

2907

2908

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

2909

2910

__attribute__((cleanup(cleanup_close)))

2911

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

2912

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2913

g_assert_cmpint(devnull_fd, >=, 0);

2914

__attribute__((cleanup(cleanup_close)))

2915

const int real_stderr_fd = dup(STDERR_FILENO);

2916

g_assert_cmpint(real_stderr_fd, >=, 0);

2917

2918

struct timespec starttime, currtime;

2919

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

2920

do {

2921

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

2922

dup2(devnull_fd, STDERR_FILENO);

2923

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

2924

&quit_now);

2925

dup2(real_stderr_fd, STDERR_FILENO);

2926

if(not success){

2927

break;

2928

}

2929

2930

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

2931

} while((not mandos_client_exited)

2932

and (not quit_now)

2933

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

2934

2935

g_assert_true(quit_now);

2936

g_assert_true(mandos_client_exited);

2937

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

2938

}

2939

2940

static

2941

void test_wait_for_mandos_client_exit_killed(test_fixture *fixture,

2942

__attribute__((unused))

2943

gconstpointer user_data){

2944

bool mandos_client_exited = false;

2945

bool quit_now = false;

2946

2947

pid_t create_killed_process(void){

2948

const pid_t pid = fork();

2949

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

2950

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

2951

_exit(EXIT_FAILURE);

2952

}

2953

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

2954

_exit(EXIT_FAILURE);

2955

}

2956

while(true){

2957

pause();

2958

}

2959

}

2960

kill(pid, SIGKILL);

2961

return pid;

2962

}

2963

const pid_t pid = create_killed_process();

2964

g_assert_true(pid != -1);

2965

2966

__attribute__((cleanup(string_set_clear)))

2967

string_set cancelled_filenames = {};

2968

__attribute__((cleanup(cleanup_close)))

2969

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2970

g_assert_cmpint(epoll_fd, >=, 0);

2971

__attribute__((cleanup(cleanup_queue)))

2972

task_queue *queue = create_queue();

2973

g_assert_nonnull(queue);

2974

g_assert_true(add_to_queue(queue, (task_context){

2975

.func=wait_for_mandos_client_exit,

2976

.pid=pid,

2977

.mandos_client_exited=&mandos_client_exited,

2978

.quit_now=&quit_now,

2979

}));

2980

2981

__attribute__((cleanup(cleanup_close)))

2982

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

2983

O_WRONLY | O_CLOEXEC, O_NOCTTY);

2984

g_assert_cmpint(devnull_fd, >=, 0);

2985

__attribute__((cleanup(cleanup_close)))

2986

const int real_stderr_fd = dup(STDERR_FILENO);

2987

g_assert_cmpint(real_stderr_fd, >=, 0);

2988

2989

struct timespec starttime, currtime;

2990

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

2991

do {

2992

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

2993

dup2(devnull_fd, STDERR_FILENO);

2994

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

2995

&quit_now);

2996

dup2(real_stderr_fd, STDERR_FILENO);

2997

if(not success){

2998

break;

2999

}

3000

3001

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

3002

} while((not mandos_client_exited)

3003

and (not quit_now)

3004

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

3005

3006

g_assert_true(mandos_client_exited);

3007

g_assert_true(quit_now);

3008

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

3009

}

3010

3011

static bool epoll_set_does_not_contain(int, int);

3012

3013

static

3014

void test_read_mandos_client_output_readerror(__attribute__((unused))

3015

test_fixture *fixture,

3016

__attribute__((unused))

3017

gconstpointer

3018

user_data){

3019

__attribute__((cleanup(cleanup_close)))

3020

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3021

g_assert_cmpint(epoll_fd, >=, 0);

3022

3023

__attribute__((cleanup(cleanup_buffer)))

3024

buffer password = {};

3025

3026

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

3027

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

3028

O_RDONLY | O_CLOEXEC | O_NOCTTY);

3029

3030

bool password_is_read = false;

3031

bool quit_now = false;

3032

__attribute__((cleanup(cleanup_queue)))

3033

task_queue *queue = create_queue();

3034

g_assert_nonnull(queue);

3035

3036

task_context task = {

3037

.func=read_mandos_client_output,

3038

.epoll_fd=epoll_fd,

3039

.fd=fd,

3040

.password=&password,

3041

.password_is_read=&password_is_read,

3042

.quit_now=&quit_now,

3043

};

3044

run_task_with_stderr_to_dev_null(task, queue);

3045

g_assert_false(password_is_read);

3046

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

3047

g_assert_true(quit_now);

3048

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

3049

3050

g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));

3051

3052

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

3053

}

3054

3055

static bool epoll_set_does_not_contain(int epoll_fd, int fd){

3056

return not epoll_set_contains(epoll_fd, fd, 0);

3057

}

3058

3059

static

3060

void test_read_mandos_client_output_nodata(__attribute__((unused))

3061

test_fixture *fixture,

3062

__attribute__((unused))

3063

gconstpointer user_data){

3064

__attribute__((cleanup(cleanup_close)))

3065

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3066

g_assert_cmpint(epoll_fd, >=, 0);

3067

3068

int pipefds[2];

3069

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

3070

3071

__attribute__((cleanup(cleanup_buffer)))

3072

buffer password = {};

3073

3074

bool password_is_read = false;

3075

bool quit_now = false;

3076

__attribute__((cleanup(cleanup_queue)))

3077

task_queue *queue = create_queue();

3078

g_assert_nonnull(queue);

3079

3080

task_context task = {

3081

.func=read_mandos_client_output,

3082

.epoll_fd=epoll_fd,

3083

.fd=pipefds[0],

3084

.password=&password,

3085

.password_is_read=&password_is_read,

3086

.quit_now=&quit_now,

3087

};

3088

task.func(task, queue);

3089

g_assert_false(password_is_read);

3090

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

3091

g_assert_false(quit_now);

3092

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

3093

3094

g_assert_nonnull(find_matching_task(queue, (task_context){

3095

.func=read_mandos_client_output,

3096

.epoll_fd=epoll_fd,

3097

.fd=pipefds[0],

3098

.password=&password,

3099

.password_is_read=&password_is_read,

3100

.quit_now=&quit_now,

3101

}));

3102

3103

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3104

EPOLLIN | EPOLLRDHUP));

3105

3106

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

3107

}

3108

3109

static void test_read_mandos_client_output_eof(__attribute__((unused))

3110

test_fixture *fixture,

3111

__attribute__((unused))

3112

gconstpointer

3113

user_data){

3114

__attribute__((cleanup(cleanup_close)))

3115

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3116

g_assert_cmpint(epoll_fd, >=, 0);

3117

3118

int pipefds[2];

3119

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

3120

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

3121

3122

__attribute__((cleanup(cleanup_buffer)))

3123

buffer password = {};

3124

3125

bool password_is_read = false;

3126

bool quit_now = false;

3127

__attribute__((cleanup(cleanup_queue)))

3128

task_queue *queue = create_queue();

3129

g_assert_nonnull(queue);

3130

3131

task_context task = {

3132

.func=read_mandos_client_output,

3133

.epoll_fd=epoll_fd,

3134

.fd=pipefds[0],

3135

.password=&password,

3136

.password_is_read=&password_is_read,

3137

.quit_now=&quit_now,

3138

};

3139

task.func(task, queue);

3140

g_assert_true(password_is_read);

3141

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

3142

g_assert_false(quit_now);

3143

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

3144

3145

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

3146

3147

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

3148

}

3149

3150

static

3151

void test_read_mandos_client_output_once(__attribute__((unused))

3152

test_fixture *fixture,

3153

__attribute__((unused))

3154

gconstpointer user_data){

3155

__attribute__((cleanup(cleanup_close)))

3156

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3157

g_assert_cmpint(epoll_fd, >=, 0);

3158

3159

int pipefds[2];

3160

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

3161

3162

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

3163

/* Start with a pre-allocated buffer */

3164

__attribute__((cleanup(cleanup_buffer)))

3165

buffer password = {

3166

.data=malloc(sizeof(dummy_test_password)),

3167

.length=0,

3168

.allocated=sizeof(dummy_test_password),

3169

};

3170

g_assert_nonnull(password.data);

3171

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

3172

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

3173

}

3174

3175

bool password_is_read = false;

3176

bool quit_now = false;

3177

__attribute__((cleanup(cleanup_queue)))

3178

task_queue *queue = create_queue();

3179

g_assert_nonnull(queue);

3180

3181

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3182

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

3183

sizeof(dummy_test_password)),

3184

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

3185

3186

task_context task = {

3187

.func=read_mandos_client_output,

3188

.epoll_fd=epoll_fd,

3189

.fd=pipefds[0],

3190

.password=&password,

3191

.password_is_read=&password_is_read,

3192

.quit_now=&quit_now,

3193

};

3194

task.func(task, queue);

3195

3196

g_assert_false(password_is_read);

3197

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

3198

(int)sizeof(dummy_test_password));

3199

g_assert_nonnull(password.data);

3200

g_assert_cmpint(memcmp(password.data, dummy_test_password,

3201

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

3202

3203

g_assert_false(quit_now);

3204

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

3205

3206

g_assert_nonnull(find_matching_task(queue, (task_context){

3207

.func=read_mandos_client_output,

3208

.epoll_fd=epoll_fd,

3209

.fd=pipefds[0],

3210

.password=&password,

3211

.password_is_read=&password_is_read,

3212

.quit_now=&quit_now,

3213

}));

3214

3215

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3216

EPOLLIN | EPOLLRDHUP));

3217

3218

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

3219

}

3220

3221

static

3222

void test_read_mandos_client_output_malloc(__attribute__((unused))

3223

test_fixture *fixture,

3224

__attribute__((unused))

3225

gconstpointer user_data){

3226

__attribute__((cleanup(cleanup_close)))

3227

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3228

g_assert_cmpint(epoll_fd, >=, 0);

3229

3230

int pipefds[2];

3231

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

3232

3233

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

3234

/* Start with an empty buffer */

3235

__attribute__((cleanup(cleanup_buffer)))

3236

buffer password = {};

3237

3238

bool password_is_read = false;

3239

bool quit_now = false;

3240

__attribute__((cleanup(cleanup_queue)))

3241

task_queue *queue = create_queue();

3242

g_assert_nonnull(queue);

3243

3244

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3245

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

3246

sizeof(dummy_test_password)),

3247

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

3248

3249

task_context task = {

3250

.func=read_mandos_client_output,

3251

.epoll_fd=epoll_fd,

3252

.fd=pipefds[0],

3253

.password=&password,

3254

.password_is_read=&password_is_read,

3255

.quit_now=&quit_now,

3256

};

3257

task.func(task, queue);

3258

3259

g_assert_false(password_is_read);

3260

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

3261

(int)sizeof(dummy_test_password));

3262

g_assert_nonnull(password.data);

3263

g_assert_cmpint(memcmp(password.data, dummy_test_password,

3264

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

3265

3266

g_assert_false(quit_now);

3267

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

3268

3269

g_assert_nonnull(find_matching_task(queue, (task_context){

3270

.func=read_mandos_client_output,

3271

.epoll_fd=epoll_fd,

3272

.fd=pipefds[0],

3273

.password=&password,

3274

.password_is_read=&password_is_read,

3275

.quit_now=&quit_now,

3276

}));

3277

3278

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3279

EPOLLIN | EPOLLRDHUP));

3280

3281

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

3282

}

3283

3284

static

3285

void test_read_mandos_client_output_append(__attribute__((unused))

3286

test_fixture *fixture,

3287

__attribute__((unused))

3288

gconstpointer user_data){

3289

__attribute__((cleanup(cleanup_close)))

3290

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3291

g_assert_cmpint(epoll_fd, >=, 0);

3292

3293

int pipefds[2];

3294

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

3295

3296

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

3297

__attribute__((cleanup(cleanup_buffer)))

3298

buffer password = {

3299

.data=malloc(PIPE_BUF),

3300

.length=PIPE_BUF,

3301

.allocated=PIPE_BUF,

3302

};

3303

g_assert_nonnull(password.data);

3304

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

3305

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

3306

}

3307

3308

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

3309

char password_expected[PIPE_BUF];

3310

memcpy(password_expected, password.data, PIPE_BUF);

3311

3312

bool password_is_read = false;

3313

bool quit_now = false;

3314

__attribute__((cleanup(cleanup_queue)))

3315

task_queue *queue = create_queue();

3316

g_assert_nonnull(queue);

3317

3318

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3319

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

3320

sizeof(dummy_test_password)),

3321

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

3322

3323

task_context task = {

3324

.func=read_mandos_client_output,

3325

.epoll_fd=epoll_fd,

3326

.fd=pipefds[0],

3327

.password=&password,

3328

.password_is_read=&password_is_read,

3329

.quit_now=&quit_now,

3330

};

3331

task.func(task, queue);

3332

3333

g_assert_false(password_is_read);

3334

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

3335

PIPE_BUF + sizeof(dummy_test_password));

3336

g_assert_nonnull(password.data);

3337

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

3338

==, 0);

3339

g_assert_cmpint(memcmp(password.data + PIPE_BUF,

3340

dummy_test_password,

3341

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

3342

g_assert_false(quit_now);

3343

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

3344

3345

g_assert_nonnull(find_matching_task(queue, (task_context){

3346

.func=read_mandos_client_output,

3347

.epoll_fd=epoll_fd,

3348

.fd=pipefds[0],

3349

.password=&password,

3350

.password_is_read=&password_is_read,

3351

.quit_now=&quit_now,

3352

}));

3353

3354

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3355

EPOLLIN | EPOLLRDHUP));

3356

}

3357

3358

static char *make_temporary_directory(void);

3359

3360

static void test_add_inotify_dir_watch(__attribute__((unused))

3361

test_fixture *fixture,

3362

__attribute__((unused))

3363

gconstpointer user_data){

3364

__attribute__((cleanup(cleanup_close)))

3365

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3366

g_assert_cmpint(epoll_fd, >=, 0);

3367

__attribute__((cleanup(cleanup_queue)))

3368

task_queue *queue = create_queue();

3369

g_assert_nonnull(queue);

3370

__attribute__((cleanup(string_set_clear)))

3371

string_set cancelled_filenames = {};

3372

const mono_microsecs current_time = 0;

3373

3374

bool quit_now = false;

3375

buffer password = {};

3376

bool mandos_client_exited = false;

3377

bool password_is_read = false;

3378

3379

__attribute__((cleanup(cleanup_string)))

3380

char *tempdir = make_temporary_directory();

3381

g_assert_nonnull(tempdir);

3382

3383

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3384

&password, tempdir,

3385

&cancelled_filenames,

3386

&current_time,

3387

&mandos_client_exited,

3388

&password_is_read));

3389

3390

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

3391

3392

const task_context *const added_read_task

3393

= find_matching_task(queue, (task_context){

3394

.func=read_inotify_event,

3395

.epoll_fd=epoll_fd,

3396

.quit_now=&quit_now,

3397

.password=&password,

3398

.filename=tempdir,

3399

.cancelled_filenames=&cancelled_filenames,

3400

.current_time=&current_time,

3401

.mandos_client_exited=&mandos_client_exited,

3402

.password_is_read=&password_is_read,

3403

});

3404

g_assert_nonnull(added_read_task);

3405

3406

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

3407

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3408

g_assert_true(epoll_set_contains(added_read_task->epoll_fd,

3409

added_read_task->fd,

3410

EPOLLIN | EPOLLRDHUP));

3411

3412

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

3413

}

3414

3415

static char *make_temporary_directory(void){

3416

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

3417

g_assert_nonnull(name);

3418

char *result = mkdtemp(name);

3419

if(result == NULL){

3420

free(name);

3421

}

3422

return result;

3423

}

3424

3425

static void test_add_inotify_dir_watch_fail(__attribute__((unused))

3426

test_fixture *fixture,

3427

__attribute__((unused))

3428

gconstpointer user_data){

3429

__attribute__((cleanup(cleanup_close)))

3430

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3431

g_assert_cmpint(epoll_fd, >=, 0);

3432

__attribute__((cleanup(cleanup_queue)))

3433

task_queue *queue = create_queue();

3434

g_assert_nonnull(queue);

3435

__attribute__((cleanup(string_set_clear)))

3436

string_set cancelled_filenames = {};

3437

const mono_microsecs current_time = 0;

3438

3439

bool quit_now = false;

3440

buffer password = {};

3441

bool mandos_client_exited = false;

3442

bool password_is_read = false;

3443

3444

const char nonexistent_dir[] = "/nonexistent";

3445

3446

FILE *real_stderr = stderr;

3447

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

3448

g_assert_nonnull(devnull);

3449

stderr = devnull;

3450

g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3451

&password, nonexistent_dir,

3452

&cancelled_filenames,

3453

&current_time,

3454

&mandos_client_exited,

3455

&password_is_read));

3456

stderr = real_stderr;

3457

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

3458

3459

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

3460

}

3461

3462

static void test_add_inotify_dir_watch_nondir(__attribute__((unused))

3463

test_fixture *fixture,

3464

__attribute__((unused))

3465

gconstpointer

3466

user_data){

3467

__attribute__((cleanup(cleanup_close)))

3468

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3469

g_assert_cmpint(epoll_fd, >=, 0);

3470

__attribute__((cleanup(cleanup_queue)))

3471

task_queue *queue = create_queue();

3472

g_assert_nonnull(queue);

3473

__attribute__((cleanup(string_set_clear)))

3474

string_set cancelled_filenames = {};

3475

const mono_microsecs current_time = 0;

3476

3477

bool quit_now = false;

3478

buffer password = {};

3479

bool mandos_client_exited = false;

3480

bool password_is_read = false;

3481

3482

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

3483

3484

FILE *real_stderr = stderr;

3485

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

3486

g_assert_nonnull(devnull);

3487

stderr = devnull;

3488

g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3489

&password, not_a_directory,

3490

&cancelled_filenames,

3491

&current_time,

3492

&mandos_client_exited,

3493

&password_is_read));

3494

stderr = real_stderr;

3495

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

3496

3497

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

3498

}

3499

3500

static void test_add_inotify_dir_watch_EAGAIN(__attribute__((unused))

3501

test_fixture *fixture,

3502

__attribute__((unused))

3503

gconstpointer

3504

user_data){

3505

__attribute__((cleanup(cleanup_close)))

3506

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3507

g_assert_cmpint(epoll_fd, >=, 0);

3508

__attribute__((cleanup(cleanup_queue)))

3509

task_queue *queue = create_queue();

3510

g_assert_nonnull(queue);

3511

__attribute__((cleanup(string_set_clear)))

3512

string_set cancelled_filenames = {};

3513

const mono_microsecs current_time = 0;

3514

3515

bool quit_now = false;

3516

buffer password = {};

3517

bool mandos_client_exited = false;

3518

bool password_is_read = false;

3519

3520

__attribute__((cleanup(cleanup_string)))

3521

char *tempdir = make_temporary_directory();

3522

g_assert_nonnull(tempdir);

3523

3524

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3525

&password, tempdir,

3526

&cancelled_filenames,

3527

&current_time,

3528

&mandos_client_exited,

3529

&password_is_read));

3530

3531

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

3532

3533

const task_context *const added_read_task

3534

= find_matching_task(queue,

3535

(task_context){ .func=read_inotify_event });

3536

g_assert_nonnull(added_read_task);

3537

3538

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

3539

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3540

3541

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

3542

const size_t ievent_size = (sizeof(struct inotify_event)

3543

+ NAME_MAX + 1);

3544

struct inotify_event *ievent = malloc(ievent_size);

3545

g_assert_nonnull(ievent);

3546

3547

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

3548

-1);

3549

g_assert_cmpint(errno, ==, EAGAIN);

3550

3551

free(ievent);

3552

3553

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

3554

}

3555

3556

static char *make_temporary_file_in_directory(const char

3557

*const dir);

3558

3559

static

3560

void test_add_inotify_dir_watch_IN_CLOSE_WRITE(__attribute__((unused))

3561

test_fixture *fixture,

3562

__attribute__((unused))

3563

gconstpointer

3564

user_data){

3565

__attribute__((cleanup(cleanup_close)))

3566

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3567

g_assert_cmpint(epoll_fd, >=, 0);

3568

__attribute__((cleanup(cleanup_queue)))

3569

task_queue *queue = create_queue();

3570

g_assert_nonnull(queue);

3571

__attribute__((cleanup(string_set_clear)))

3572

string_set cancelled_filenames = {};

3573

const mono_microsecs current_time = 0;

3574

3575

bool quit_now = false;

3576

buffer password = {};

3577

bool mandos_client_exited = false;

3578

bool password_is_read = false;

3579

3580

__attribute__((cleanup(cleanup_string)))

3581

char *tempdir = make_temporary_directory();

3582

g_assert_nonnull(tempdir);

3583

3584

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3585

&password, tempdir,

3586

&cancelled_filenames,

3587

&current_time,

3588

&mandos_client_exited,

3589

&password_is_read));

3590

3591

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

3592

3593

const task_context *const added_read_task

3594

= find_matching_task(queue,

3595

(task_context){ .func=read_inotify_event });

3596

g_assert_nonnull(added_read_task);

3597

3598

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

3599

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3600

3601

__attribute__((cleanup(cleanup_string)))

3602

char *filename = make_temporary_file_in_directory(tempdir);

3603

g_assert_nonnull(filename);

3604

3605

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

3606

const size_t ievent_size = (sizeof(struct inotify_event)

3607

+ NAME_MAX + 1);

3608

struct inotify_event *ievent = malloc(ievent_size);

3609

g_assert_nonnull(ievent);

3610

3611

ssize_t read_size = 0;

3612

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

3613

3614

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

3615

g_assert_true(ievent->mask & IN_CLOSE_WRITE);

3616

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

3617

3618

free(ievent);

3619

3620

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

3621

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

3622

}

3623

3624

static char *make_temporary_prefixed_file_in_directory(const char

3625

*const prefix,

3626

const char

3627

*const dir){

3628

char *filename = NULL;

3629

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

3630

>, 0);

3631

g_assert_nonnull(filename);

3632

const int fd = mkostemp(filename, O_CLOEXEC);

3633

g_assert_cmpint(fd, >=, 0);

3634

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

3635

return filename;

3636

}

3637

3638

static char *make_temporary_file_in_directory(const char

3639

*const dir){

3640

return make_temporary_prefixed_file_in_directory("temp", dir);

3641

}

3642

3643

static

3644

void test_add_inotify_dir_watch_IN_MOVED_TO(__attribute__((unused))

3645

test_fixture *fixture,

3646

__attribute__((unused))

3647

gconstpointer user_data){

3648

__attribute__((cleanup(cleanup_close)))

3649

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3650

g_assert_cmpint(epoll_fd, >=, 0);

3651

__attribute__((cleanup(cleanup_queue)))

3652

task_queue *queue = create_queue();

3653

g_assert_nonnull(queue);

3654

__attribute__((cleanup(string_set_clear)))

3655

string_set cancelled_filenames = {};

3656

const mono_microsecs current_time = 0;

3657

3658

bool quit_now = false;

3659

buffer password = {};

3660

bool mandos_client_exited = false;

3661

bool password_is_read = false;

3662

3663

__attribute__((cleanup(cleanup_string)))

3664

char *watchdir = make_temporary_directory();

3665

g_assert_nonnull(watchdir);

3666

3667

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3668

&password, watchdir,

3669

&cancelled_filenames,

3670

&current_time,

3671

&mandos_client_exited,

3672

&password_is_read));

3673

3674

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

3675

3676

const task_context *const added_read_task

3677

= find_matching_task(queue,

3678

(task_context){ .func=read_inotify_event });

3679

g_assert_nonnull(added_read_task);

3680

3681

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

3682

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3683

3684

char *sourcedir = make_temporary_directory();

3685

g_assert_nonnull(sourcedir);

3686

3687

__attribute__((cleanup(cleanup_string)))

3688

char *filename = make_temporary_file_in_directory(sourcedir);

3689

g_assert_nonnull(filename);

3690

3691

__attribute__((cleanup(cleanup_string)))

3692

char *targetfilename = NULL;

3693

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

3694

basename(filename)), >, 0);

3695

g_assert_nonnull(targetfilename);

3696

3697

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

3698

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

3699

free(sourcedir);

3700

3701

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

3702

const size_t ievent_size = (sizeof(struct inotify_event)

3703

+ NAME_MAX + 1);

3704

struct inotify_event *ievent = malloc(ievent_size);

3705

g_assert_nonnull(ievent);

3706

3707

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

3708

3709

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

3710

g_assert_true(ievent->mask & IN_MOVED_TO);

3711

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

3712

3713

free(ievent);

3714

3715

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

3716

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

3717

}

3718

3719

static

3720

void test_add_inotify_dir_watch_IN_MOVED_FROM(__attribute__((unused))

3721

test_fixture *fixture,

3722

__attribute__((unused))

3723

gconstpointer

3724

user_data){

3725

__attribute__((cleanup(cleanup_close)))

3726

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3727

g_assert_cmpint(epoll_fd, >=, 0);

3728

__attribute__((cleanup(cleanup_queue)))

3729

task_queue *queue = create_queue();

3730

g_assert_nonnull(queue);

3731

__attribute__((cleanup(string_set_clear)))

3732

string_set cancelled_filenames = {};

3733

const mono_microsecs current_time = 0;

3734

3735

bool quit_now = false;

3736

buffer password = {};

3737

bool mandos_client_exited = false;

3738

bool password_is_read = false;

3739

3740

__attribute__((cleanup(cleanup_string)))

3741

char *tempdir = make_temporary_directory();

3742

g_assert_nonnull(tempdir);

3743

3744

__attribute__((cleanup(cleanup_string)))

3745

char *tempfilename = make_temporary_file_in_directory(tempdir);

3746

g_assert_nonnull(tempfilename);

3747

3748

__attribute__((cleanup(cleanup_string)))

3749

char *targetdir = make_temporary_directory();

3750

g_assert_nonnull(targetdir);

3751

3752

__attribute__((cleanup(cleanup_string)))

3753

char *targetfilename = NULL;

3754

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

3755

basename(tempfilename)), >, 0);

3756

g_assert_nonnull(targetfilename);

3757

3758

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3759

&password, tempdir,

3760

&cancelled_filenames,

3761

&current_time,

3762

&mandos_client_exited,

3763

&password_is_read));

3764

3765

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

3766

3767

const task_context *const added_read_task

3768

= find_matching_task(queue,

3769

(task_context){ .func=read_inotify_event });

3770

g_assert_nonnull(added_read_task);

3771

3772

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

3773

const size_t ievent_size = (sizeof(struct inotify_event)

3774

+ NAME_MAX + 1);

3775

struct inotify_event *ievent = malloc(ievent_size);

3776

g_assert_nonnull(ievent);

3777

3778

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

3779

3780

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

3781

g_assert_true(ievent->mask & IN_MOVED_FROM);

3782

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

3783

3784

free(ievent);

3785

3786

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

3787

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

3788

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

3789

}

3790

3791

static

3792

void test_add_inotify_dir_watch_IN_DELETE(__attribute__((unused))

3793

test_fixture *fixture,

3794

__attribute__((unused))

3795

gconstpointer user_data){

3796

__attribute__((cleanup(cleanup_close)))

3797

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3798

g_assert_cmpint(epoll_fd, >=, 0);

3799

__attribute__((cleanup(cleanup_queue)))

3800

task_queue *queue = create_queue();

3801

g_assert_nonnull(queue);

3802

__attribute__((cleanup(string_set_clear)))

3803

string_set cancelled_filenames = {};

3804

const mono_microsecs current_time = 0;

3805

3806

bool quit_now = false;

3807

buffer password = {};

3808

bool mandos_client_exited = false;

3809

bool password_is_read = false;

3810

3811

__attribute__((cleanup(cleanup_string)))

3812

char *tempdir = make_temporary_directory();

3813

g_assert_nonnull(tempdir);

3814

3815

__attribute__((cleanup(cleanup_string)))

3816

char *tempfile = make_temporary_file_in_directory(tempdir);

3817

g_assert_nonnull(tempfile);

3818

3819

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3820

&password, tempdir,

3821

&cancelled_filenames,

3822

&current_time,

3823

&mandos_client_exited,

3824

&password_is_read));

3825

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

3826

3827

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

3828

3829

const task_context *const added_read_task

3830

= find_matching_task(queue,

3831

(task_context){ .func=read_inotify_event });

3832

g_assert_nonnull(added_read_task);

3833

3834

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

3835

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3836

3837

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

3838

const size_t ievent_size = (sizeof(struct inotify_event)

3839

+ NAME_MAX + 1);

3840

struct inotify_event *ievent = malloc(ievent_size);

3841

g_assert_nonnull(ievent);

3842

3843

ssize_t read_size = 0;

3844

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

3845

3846

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

3847

g_assert_true(ievent->mask & IN_DELETE);

3848

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

3849

3850

free(ievent);

3851

3852

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

3853

}

3854

3855

static

3856

void test_add_inotify_dir_watch_IN_EXCL_UNLINK(__attribute__((unused))

3857

test_fixture *fixture,

3858

__attribute__((unused))

3859

gconstpointer

3860

user_data){

3861

__attribute__((cleanup(cleanup_close)))

3862

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3863

g_assert_cmpint(epoll_fd, >=, 0);

3864

__attribute__((cleanup(cleanup_queue)))

3865

task_queue *queue = create_queue();

3866

g_assert_nonnull(queue);

3867

__attribute__((cleanup(string_set_clear)))

3868

string_set cancelled_filenames = {};

3869

const mono_microsecs current_time = 0;

3870

3871

bool quit_now = false;

3872

buffer password = {};

3873

bool mandos_client_exited = false;

3874

bool password_is_read = false;

3875

3876

__attribute__((cleanup(cleanup_string)))

3877

char *tempdir = make_temporary_directory();

3878

g_assert_nonnull(tempdir);

3879

3880

__attribute__((cleanup(cleanup_string)))

3881

char *tempfile = make_temporary_file_in_directory(tempdir);

3882

g_assert_nonnull(tempfile);

3883

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

3884

| O_NOFOLLOW);

3885

g_assert_cmpint(tempfile_fd, >, 2);

3886

3887

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3888

&password, tempdir,

3889

&cancelled_filenames,

3890

&current_time,

3891

&mandos_client_exited,

3892

&password_is_read));

3893

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

3894

3895

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

3896

3897

const task_context *const added_read_task

3898

= find_matching_task(queue,

3899

(task_context){ .func=read_inotify_event });

3900

g_assert_nonnull(added_read_task);

3901

3902

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

3903

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3904

3905

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

3906

const size_t ievent_size = (sizeof(struct inotify_event)

3907

+ NAME_MAX + 1);

3908

struct inotify_event *ievent = malloc(ievent_size);

3909

g_assert_nonnull(ievent);

3910

3911

ssize_t read_size = 0;

3912

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

3913

3914

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

3915

g_assert_true(ievent->mask & IN_DELETE);

3916

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

3917

3918

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

3919

3920

/* IN_EXCL_UNLINK should make the closing of the previously unlinked

3921

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

3922

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

3923

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

3924

g_assert_true(errno == EAGAIN);

3925

3926

free(ievent);

3927

3928

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

3929

}

3930

3931

static void test_read_inotify_event_readerror(__attribute__((unused))

3932

test_fixture *fixture,

3933

__attribute__((unused))

3934

gconstpointer

3935

user_data){

3936

__attribute__((cleanup(cleanup_close)))

3937

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3938

g_assert_cmpint(epoll_fd, >=, 0);

3939

const mono_microsecs current_time = 0;

3940

3941

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

3942

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

3943

O_RDONLY | O_CLOEXEC | O_NOCTTY);

3944

3945

bool quit_now = false;

3946

__attribute__((cleanup(cleanup_queue)))

3947

task_queue *queue = create_queue();

3948

g_assert_nonnull(queue);

3949

3950

task_context task = {

3951

.func=read_inotify_event,

3952

.epoll_fd=epoll_fd,

3953

.fd=fd,

3954

.quit_now=&quit_now,

3955

.filename=strdup("/nonexistent"),

3956

.cancelled_filenames = &(string_set){},

3957

.notafter=0,

3958

.current_time=&current_time,

3959

};

3960

g_assert_nonnull(task.filename);

3961

run_task_with_stderr_to_dev_null(task, queue);

3962

g_assert_true(quit_now);

3963

g_assert_true(queue->next_run == 0);

3964

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

3965

3966

g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));

3967

3968

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

3969

}

3970

3971

static void test_read_inotify_event_bad_epoll(__attribute__((unused))

3972

test_fixture *fixture,

3973

__attribute__((unused))

3974

gconstpointer

3975

user_data){

3976

const mono_microsecs current_time = 17;

3977

3978

int pipefds[2];

3979

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

3980

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

3981

3982

bool quit_now = false;

3983

buffer password = {};

3984

bool mandos_client_exited = false;

3985

bool password_is_read = 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=pipefds[0],

3994

.quit_now=&quit_now,

3995

.password=&password,

3996

.filename=strdup("/nonexistent"),

3997

.cancelled_filenames = &(string_set){},

3998

.notafter=0,

3999

.current_time=&current_time,

4000

.mandos_client_exited=&mandos_client_exited,

4001

.password_is_read=&password_is_read,

4002

};

4003

g_assert_nonnull(task.filename);

4004

run_task_with_stderr_to_dev_null(task, queue);

4005

4006

g_assert_nonnull(find_matching_task(queue, task));

4007

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

4008

4009

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

4010

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

4011

}

4012

4013

static void test_read_inotify_event_nodata(__attribute__((unused))

4014

test_fixture *fixture,

4015

__attribute__((unused))

4016

gconstpointer user_data){

4017

__attribute__((cleanup(cleanup_close)))

4018

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4019

g_assert_cmpint(epoll_fd, >=, 0);

4020

const mono_microsecs current_time = 0;

4021

4022

int pipefds[2];

4023

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

4024

4025

bool quit_now = false;

4026

buffer password = {};

4027

bool mandos_client_exited = false;

4028

bool password_is_read = false;

4029

__attribute__((cleanup(cleanup_queue)))

4030

task_queue *queue = create_queue();

4031

g_assert_nonnull(queue);

4032

4033

task_context task = {

4034

.func=read_inotify_event,

4035

.epoll_fd=epoll_fd,

4036

.fd=pipefds[0],

4037

.quit_now=&quit_now,

4038

.password=&password,

4039

.filename=strdup("/nonexistent"),

4040

.cancelled_filenames = &(string_set){},

4041

.notafter=0,

4042

.current_time=&current_time,

4043

.mandos_client_exited=&mandos_client_exited,

4044

.password_is_read=&password_is_read,

4045

};

4046

g_assert_nonnull(task.filename);

4047

task.func(task, queue);

4048

g_assert_false(quit_now);

4049

g_assert_true(queue->next_run == 0);

4050

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

4051

4052

g_assert_nonnull(find_matching_task(queue, (task_context){

4053

.func=read_inotify_event,

4054

.epoll_fd=epoll_fd,

4055

.fd=pipefds[0],

4056

.quit_now=&quit_now,

4057

.password=&password,

4058

.filename=task.filename,

4059

.cancelled_filenames=task.cancelled_filenames,

4060

.current_time=&current_time,

4061

.mandos_client_exited=&mandos_client_exited,

4062

.password_is_read=&password_is_read,

4063

}));

4064

4065

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4066

EPOLLIN | EPOLLRDHUP));

4067

4068

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

4069

}

4070

4071

static void test_read_inotify_event_eof(__attribute__((unused))

4072

test_fixture *fixture,

4073

__attribute__((unused))

4074

gconstpointer user_data){

4075

__attribute__((cleanup(cleanup_close)))

4076

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4077

g_assert_cmpint(epoll_fd, >=, 0);

4078

const mono_microsecs current_time = 0;

4079

4080

int pipefds[2];

4081

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

4082

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

4083

4084

bool quit_now = false;

4085

buffer password = {};

4086

__attribute__((cleanup(cleanup_queue)))

4087

task_queue *queue = create_queue();

4088

g_assert_nonnull(queue);

4089

4090

task_context task = {

4091

.func=read_inotify_event,

4092

.epoll_fd=epoll_fd,

4093

.fd=pipefds[0],

4094

.quit_now=&quit_now,

4095

.password=&password,

4096

.filename=strdup("/nonexistent"),

4097

.cancelled_filenames = &(string_set){},

4098

.notafter=0,

4099

.current_time=&current_time,

4100

};

4101

run_task_with_stderr_to_dev_null(task, queue);

4102

g_assert_true(quit_now);

4103

g_assert_true(queue->next_run == 0);

4104

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

4105

4106

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

4107

4108

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

4109

}

4110

4111

static

4112

void test_read_inotify_event_IN_CLOSE_WRITE(__attribute__((unused))

4113

test_fixture *fixture,

4114

__attribute__((unused))

4115

gconstpointer user_data){

4116

__attribute__((cleanup(cleanup_close)))

4117

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4118

g_assert_cmpint(epoll_fd, >=, 0);

4119

const mono_microsecs current_time = 0;

4120

4121

int pipefds[2];

4122

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

4123

4124

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

4125

const size_t ievent_max_size = (sizeof(struct inotify_event)

4126

+ NAME_MAX + 1);

4127

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4128

struct {

4129

struct inotify_event event;

4130

char name_buffer[NAME_MAX + 1];

4131

} ievent_buffer;

4132

struct inotify_event *const ievent = &ievent_buffer.event;

4133

4134

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

4135

ievent->mask = IN_CLOSE_WRITE;

4136

ievent->len = sizeof(dummy_file_name);

4137

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

4138

const size_t ievent_size = (sizeof(struct inotify_event)

4139

+ sizeof(dummy_file_name));

4140

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

4141

==, ievent_size);

4142

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

4143

4144

bool quit_now = false;

4145

buffer password = {};

4146

bool mandos_client_exited = false;

4147

bool password_is_read = false;

4148

__attribute__((cleanup(cleanup_queue)))

4149

task_queue *queue = create_queue();

4150

g_assert_nonnull(queue);

4151

4152

task_context task = {

4153

.func=read_inotify_event,

4154

.epoll_fd=epoll_fd,

4155

.fd=pipefds[0],

4156

.quit_now=&quit_now,

4157

.password=&password,

4158

.filename=strdup("/nonexistent"),

4159

.cancelled_filenames = &(string_set){},

4160

.notafter=0,

4161

.current_time=&current_time,

4162

.mandos_client_exited=&mandos_client_exited,

4163

.password_is_read=&password_is_read,

4164

};

4165

task.func(task, queue);

4166

g_assert_false(quit_now);

4167

g_assert_true(queue->next_run != 0);

4168

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

4169

4170

g_assert_nonnull(find_matching_task(queue, (task_context){

4171

.func=read_inotify_event,

4172

.epoll_fd=epoll_fd,

4173

.fd=pipefds[0],

4174

.quit_now=&quit_now,

4175

.password=&password,

4176

.filename=task.filename,

4177

.cancelled_filenames=task.cancelled_filenames,

4178

.current_time=&current_time,

4179

.mandos_client_exited=&mandos_client_exited,

4180

.password_is_read=&password_is_read,

4181

}));

4182

4183

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4184

EPOLLIN | EPOLLRDHUP));

4185

4186

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

4187

4188

__attribute__((cleanup(cleanup_string)))

4189

char *filename = NULL;

4190

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

4191

dummy_file_name), >, 0);

4192

g_assert_nonnull(filename);

4193

g_assert_nonnull(find_matching_task(queue, (task_context){

4194

.func=open_and_parse_question,

4195

.epoll_fd=epoll_fd,

4196

.filename=filename,

4197

.question_filename=filename,

4198

.password=&password,

4199

.cancelled_filenames=task.cancelled_filenames,

4200

.current_time=&current_time,

4201

.mandos_client_exited=&mandos_client_exited,

4202

.password_is_read=&password_is_read,

4203

}));

4204

}

4205

4206

static

4207

void test_read_inotify_event_IN_MOVED_TO(__attribute__((unused))

4208

test_fixture *fixture,

4209

__attribute__((unused))

4210

gconstpointer user_data){

4211

__attribute__((cleanup(cleanup_close)))

4212

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4213

g_assert_cmpint(epoll_fd, >=, 0);

4214

const mono_microsecs current_time = 0;

4215

4216

int pipefds[2];

4217

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

4218

4219

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

4220

const size_t ievent_max_size = (sizeof(struct inotify_event)

4221

+ NAME_MAX + 1);

4222

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4223

struct {

4224

struct inotify_event event;

4225

char name_buffer[NAME_MAX + 1];

4226

} ievent_buffer;

4227

struct inotify_event *const ievent = &ievent_buffer.event;

4228

4229

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

4230

ievent->mask = IN_MOVED_TO;

4231

ievent->len = sizeof(dummy_file_name);

4232

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

4233

const size_t ievent_size = (sizeof(struct inotify_event)

4234

+ sizeof(dummy_file_name));

4235

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

4236

==, ievent_size);

4237

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

4238

4239

bool quit_now = false;

4240

buffer password = {};

4241

bool mandos_client_exited = false;

4242

bool password_is_read = false;

4243

__attribute__((cleanup(cleanup_queue)))

4244

task_queue *queue = create_queue();

4245

g_assert_nonnull(queue);

4246

4247

task_context task = {

4248

.func=read_inotify_event,

4249

.epoll_fd=epoll_fd,

4250

.fd=pipefds[0],

4251

.quit_now=&quit_now,

4252

.password=&password,

4253

.filename=strdup("/nonexistent"),

4254

.cancelled_filenames = &(string_set){},

4255

.notafter=0,

4256

.current_time=&current_time,

4257

.mandos_client_exited=&mandos_client_exited,

4258

.password_is_read=&password_is_read,

4259

};

4260

task.func(task, queue);

4261

g_assert_false(quit_now);

4262

g_assert_true(queue->next_run != 0);

4263

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

4264

4265

g_assert_nonnull(find_matching_task(queue, (task_context){

4266

.func=read_inotify_event,

4267

.epoll_fd=epoll_fd,

4268

.fd=pipefds[0],

4269

.quit_now=&quit_now,

4270

.password=&password,

4271

.filename=task.filename,

4272

.cancelled_filenames=task.cancelled_filenames,

4273

.current_time=&current_time,

4274

.mandos_client_exited=&mandos_client_exited,

4275

.password_is_read=&password_is_read,

4276

}));

4277

4278

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4279

EPOLLIN | EPOLLRDHUP));

4280

4281

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

4282

4283

__attribute__((cleanup(cleanup_string)))

4284

char *filename = NULL;

4285

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

4286

dummy_file_name), >, 0);

4287

g_assert_nonnull(filename);

4288

g_assert_nonnull(find_matching_task(queue, (task_context){

4289

.func=open_and_parse_question,

4290

.epoll_fd=epoll_fd,

4291

.filename=filename,

4292

.question_filename=filename,

4293

.password=&password,

4294

.cancelled_filenames=task.cancelled_filenames,

4295

.current_time=&current_time,

4296

.mandos_client_exited=&mandos_client_exited,

4297

.password_is_read=&password_is_read,

4298

}));

4299

}

4300

4301

static

4302

void test_read_inotify_event_IN_MOVED_FROM(__attribute__((unused))

4303

test_fixture *fixture,

4304

__attribute__((unused))

4305

gconstpointer user_data){

4306

__attribute__((cleanup(cleanup_close)))

4307

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4308

g_assert_cmpint(epoll_fd, >=, 0);

4309

__attribute__((cleanup(string_set_clear)))

4310

string_set cancelled_filenames = {};

4311

const mono_microsecs current_time = 0;

4312

4313

int pipefds[2];

4314

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

4315

4316

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

4317

const size_t ievent_max_size = (sizeof(struct inotify_event)

4318

+ NAME_MAX + 1);

4319

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4320

struct {

4321

struct inotify_event event;

4322

char name_buffer[NAME_MAX + 1];

4323

} ievent_buffer;

4324

struct inotify_event *const ievent = &ievent_buffer.event;

4325

4326

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

4327

ievent->mask = IN_MOVED_FROM;

4328

ievent->len = sizeof(dummy_file_name);

4329

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

4330

const size_t ievent_size = (sizeof(struct inotify_event)

4331

+ sizeof(dummy_file_name));

4332

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

4333

==, ievent_size);

4334

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

4335

4336

bool quit_now = false;

4337

buffer password = {};

4338

bool mandos_client_exited = false;

4339

bool password_is_read = false;

4340

__attribute__((cleanup(cleanup_queue)))

4341

task_queue *queue = create_queue();

4342

g_assert_nonnull(queue);

4343

4344

task_context task = {

4345

.func=read_inotify_event,

4346

.epoll_fd=epoll_fd,

4347

.fd=pipefds[0],

4348

.quit_now=&quit_now,

4349

.password=&password,

4350

.filename=strdup("/nonexistent"),

4351

.cancelled_filenames=&cancelled_filenames,

4352

.current_time=&current_time,

4353

.mandos_client_exited=&mandos_client_exited,

4354

.password_is_read=&password_is_read,

4355

};

4356

task.func(task, queue);

4357

g_assert_false(quit_now);

4358

g_assert_true(queue->next_run == 0);

4359

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

4360

4361

g_assert_nonnull(find_matching_task(queue, (task_context){

4362

.func=read_inotify_event,

4363

.epoll_fd=epoll_fd,

4364

.fd=pipefds[0],

4365

.quit_now=&quit_now,

4366

.password=&password,

4367

.filename=task.filename,

4368

.cancelled_filenames=&cancelled_filenames,

4369

.current_time=&current_time,

4370

.mandos_client_exited=&mandos_client_exited,

4371

.password_is_read=&password_is_read,

4372

}));

4373

4374

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4375

EPOLLIN | EPOLLRDHUP));

4376

4377

__attribute__((cleanup(cleanup_string)))

4378

char *filename = NULL;

4379

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

4380

dummy_file_name), >, 0);

4381

g_assert_nonnull(filename);

4382

g_assert_true(string_set_contains(*task.cancelled_filenames,

4383

filename));

4384

}

4385

4386

static void test_read_inotify_event_IN_DELETE(__attribute__((unused))

4387

test_fixture *fixture,

4388

__attribute__((unused))

4389

gconstpointer

4390

user_data){

4391

__attribute__((cleanup(cleanup_close)))

4392

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4393

g_assert_cmpint(epoll_fd, >=, 0);

4394

__attribute__((cleanup(string_set_clear)))

4395

string_set cancelled_filenames = {};

4396

const mono_microsecs current_time = 0;

4397

4398

int pipefds[2];

4399

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

4400

4401

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

4402

const size_t ievent_max_size = (sizeof(struct inotify_event)

4403

+ NAME_MAX + 1);

4404

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4405

struct {

4406

struct inotify_event event;

4407

char name_buffer[NAME_MAX + 1];

4408

} ievent_buffer;

4409

struct inotify_event *const ievent = &ievent_buffer.event;

4410

4411

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

4412

ievent->mask = IN_DELETE;

4413

ievent->len = sizeof(dummy_file_name);

4414

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

4415

const size_t ievent_size = (sizeof(struct inotify_event)

4416

+ sizeof(dummy_file_name));

4417

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

4418

==, ievent_size);

4419

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

4420

4421

bool quit_now = false;

4422

buffer password = {};

4423

bool mandos_client_exited = false;

4424

bool password_is_read = false;

4425

__attribute__((cleanup(cleanup_queue)))

4426

task_queue *queue = create_queue();

4427

g_assert_nonnull(queue);

4428

4429

task_context task = {

4430

.func=read_inotify_event,

4431

.epoll_fd=epoll_fd,

4432

.fd=pipefds[0],

4433

.quit_now=&quit_now,

4434

.password=&password,

4435

.filename=strdup("/nonexistent"),

4436

.cancelled_filenames=&cancelled_filenames,

4437

.current_time=&current_time,

4438

.mandos_client_exited=&mandos_client_exited,

4439

.password_is_read=&password_is_read,

4440

};

4441

task.func(task, queue);

4442

g_assert_false(quit_now);

4443

g_assert_true(queue->next_run == 0);

4444

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

4445

4446

g_assert_nonnull(find_matching_task(queue, (task_context){

4447

.func=read_inotify_event,

4448

.epoll_fd=epoll_fd,

4449

.fd=pipefds[0],

4450

.quit_now=&quit_now,

4451

.password=&password,

4452

.filename=task.filename,

4453

.cancelled_filenames=&cancelled_filenames,

4454

.current_time=&current_time,

4455

.mandos_client_exited=&mandos_client_exited,

4456

.password_is_read=&password_is_read,

4457

}));

4458

4459

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4460

EPOLLIN | EPOLLRDHUP));

4461

4462

__attribute__((cleanup(cleanup_string)))

4463

char *filename = NULL;

4464

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

4465

dummy_file_name), >, 0);

4466

g_assert_nonnull(filename);

4467

g_assert_true(string_set_contains(*task.cancelled_filenames,

4468

filename));

4469

}

4470

4471

static void

4472

test_read_inotify_event_IN_CLOSE_WRITE_badname(__attribute__((unused))

4473

test_fixture *fixture,

4474

__attribute__((unused))

4475

gconstpointer

4476

user_data){

4477

__attribute__((cleanup(cleanup_close)))

4478

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4479

g_assert_cmpint(epoll_fd, >=, 0);

4480

const mono_microsecs current_time = 0;

4481

4482

int pipefds[2];

4483

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

4484

4485

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

4486

const size_t ievent_max_size = (sizeof(struct inotify_event)

4487

+ NAME_MAX + 1);

4488

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4489

struct {

4490

struct inotify_event event;

4491

char name_buffer[NAME_MAX + 1];

4492

} ievent_buffer;

4493

struct inotify_event *const ievent = &ievent_buffer.event;

4494

4495

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

4496

ievent->mask = IN_CLOSE_WRITE;

4497

ievent->len = sizeof(dummy_file_name);

4498

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

4499

const size_t ievent_size = (sizeof(struct inotify_event)

4500

+ sizeof(dummy_file_name));

4501

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

4502

==, ievent_size);

4503

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

4504

4505

bool quit_now = false;

4506

buffer password = {};

4507

bool mandos_client_exited = false;

4508

bool password_is_read = false;

4509

__attribute__((cleanup(cleanup_queue)))

4510

task_queue *queue = create_queue();

4511

g_assert_nonnull(queue);

4512

4513

task_context task = {

4514

.func=read_inotify_event,

4515

.epoll_fd=epoll_fd,

4516

.fd=pipefds[0],

4517

.quit_now=&quit_now,

4518

.password=&password,

4519

.filename=strdup("/nonexistent"),

4520

.cancelled_filenames = &(string_set){},

4521

.notafter=0,

4522

.current_time=&current_time,

4523

.mandos_client_exited=&mandos_client_exited,

4524

.password_is_read=&password_is_read,

4525

};

4526

task.func(task, queue);

4527

g_assert_false(quit_now);

4528

g_assert_true(queue->next_run == 0);

4529

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

4530

4531

g_assert_nonnull(find_matching_task(queue, (task_context){

4532

.func=read_inotify_event,

4533

.epoll_fd=epoll_fd,

4534

.fd=pipefds[0],

4535

.quit_now=&quit_now,

4536

.password=&password,

4537

.filename=task.filename,

4538

.cancelled_filenames=task.cancelled_filenames,

4539

.current_time=&current_time,

4540

.mandos_client_exited=&mandos_client_exited,

4541

.password_is_read=&password_is_read,

4542

}));

4543

4544

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4545

EPOLLIN | EPOLLRDHUP));

4546

}

4547

4548

static void

4549

test_read_inotify_event_IN_MOVED_TO_badname(__attribute__((unused))

4550

test_fixture *fixture,

4551

__attribute__((unused))

4552

gconstpointer user_data){

4553

__attribute__((cleanup(cleanup_close)))

4554

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4555

g_assert_cmpint(epoll_fd, >=, 0);

4556

const mono_microsecs current_time = 0;

4557

4558

int pipefds[2];

4559

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

4560

4561

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

4562

const size_t ievent_max_size = (sizeof(struct inotify_event)

4563

+ NAME_MAX + 1);

4564

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4565

struct {

4566

struct inotify_event event;

4567

char name_buffer[NAME_MAX + 1];

4568

} ievent_buffer;

4569

struct inotify_event *const ievent = &ievent_buffer.event;

4570

4571

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

4572

ievent->mask = IN_MOVED_TO;

4573

ievent->len = sizeof(dummy_file_name);

4574

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

4575

const size_t ievent_size = (sizeof(struct inotify_event)

4576

+ sizeof(dummy_file_name));

4577

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

4578

==, ievent_size);

4579

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

4580

4581

bool quit_now = false;

4582

buffer password = {};

4583

bool mandos_client_exited = false;

4584

bool password_is_read = false;

4585

__attribute__((cleanup(cleanup_queue)))

4586

task_queue *queue = create_queue();

4587

g_assert_nonnull(queue);

4588

4589

task_context task = {

4590

.func=read_inotify_event,

4591

.epoll_fd=epoll_fd,

4592

.fd=pipefds[0],

4593

.quit_now=&quit_now,

4594

.password=&password,

4595

.filename=strdup("/nonexistent"),

4596

.cancelled_filenames = &(string_set){},

4597

.notafter=0,

4598

.current_time=&current_time,

4599

.mandos_client_exited=&mandos_client_exited,

4600

.password_is_read=&password_is_read,

4601

};

4602

task.func(task, queue);

4603

g_assert_false(quit_now);

4604

g_assert_true(queue->next_run == 0);

4605

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

4606

4607

g_assert_nonnull(find_matching_task(queue, (task_context){

4608

.func=read_inotify_event,

4609

.epoll_fd=epoll_fd,

4610

.fd=pipefds[0],

4611

.quit_now=&quit_now,

4612

.password=&password,

4613

.filename=task.filename,

4614

.cancelled_filenames=task.cancelled_filenames,

4615

.current_time=&current_time,

4616

.mandos_client_exited=&mandos_client_exited,

4617

.password_is_read=&password_is_read,

4618

}));

4619

4620

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4621

EPOLLIN | EPOLLRDHUP));

4622

}

4623

4624

static void

4625

test_read_inotify_event_IN_MOVED_FROM_badname(__attribute__((unused))

4626

test_fixture *fixture,

4627

__attribute__((unused))

4628

gconstpointer

4629

user_data){

4630

__attribute__((cleanup(cleanup_close)))

4631

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4632

g_assert_cmpint(epoll_fd, >=, 0);

4633

__attribute__((cleanup(string_set_clear)))

4634

string_set cancelled_filenames = {};

4635

const mono_microsecs current_time = 0;

4636

4637

int pipefds[2];

4638

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

4639

4640

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

4641

const size_t ievent_max_size = (sizeof(struct inotify_event)

4642

+ NAME_MAX + 1);

4643

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4644

struct {

4645

struct inotify_event event;

4646

char name_buffer[NAME_MAX + 1];

4647

} ievent_buffer;

4648

struct inotify_event *const ievent = &ievent_buffer.event;

4649

4650

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

4651

ievent->mask = IN_MOVED_FROM;

4652

ievent->len = sizeof(dummy_file_name);

4653

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

4654

const size_t ievent_size = (sizeof(struct inotify_event)

4655

+ sizeof(dummy_file_name));

4656

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

4657

==, ievent_size);

4658

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

4659

4660

bool quit_now = false;

4661

buffer password = {};

4662

bool mandos_client_exited = false;

4663

bool password_is_read = false;

4664

__attribute__((cleanup(cleanup_queue)))

4665

task_queue *queue = create_queue();

4666

g_assert_nonnull(queue);

4667

4668

task_context task = {

4669

.func=read_inotify_event,

4670

.epoll_fd=epoll_fd,

4671

.fd=pipefds[0],

4672

.quit_now=&quit_now,

4673

.password=&password,

4674

.filename=strdup("/nonexistent"),

4675

.cancelled_filenames=&cancelled_filenames,

4676

.current_time=&current_time,

4677

.mandos_client_exited=&mandos_client_exited,

4678

.password_is_read=&password_is_read,

4679

};

4680

task.func(task, queue);

4681

g_assert_false(quit_now);

4682

g_assert_true(queue->next_run == 0);

4683

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

4684

4685

g_assert_nonnull(find_matching_task(queue, (task_context){

4686

.func=read_inotify_event,

4687

.epoll_fd=epoll_fd,

4688

.fd=pipefds[0],

4689

.quit_now=&quit_now,

4690

.password=&password,

4691

.filename=task.filename,

4692

.cancelled_filenames=&cancelled_filenames,

4693

.current_time=&current_time,

4694

.mandos_client_exited=&mandos_client_exited,

4695

.password_is_read=&password_is_read,

4696

}));

4697

4698

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4699

EPOLLIN | EPOLLRDHUP));

4700

4701

__attribute__((cleanup(cleanup_string)))

4702

char *filename = NULL;

4703

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

4704

dummy_file_name), >, 0);

4705

g_assert_nonnull(filename);

4706

g_assert_false(string_set_contains(cancelled_filenames, filename));

4707

}

4708

4709

static

4710

void test_read_inotify_event_IN_DELETE_badname(__attribute__((unused))

4711

test_fixture *fixture,

4712

__attribute__((unused))

4713

gconstpointer

4714

user_data){

4715

__attribute__((cleanup(cleanup_close)))

4716

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4717

g_assert_cmpint(epoll_fd, >=, 0);

4718

__attribute__((cleanup(string_set_clear)))

4719

string_set cancelled_filenames = {};

4720

const mono_microsecs current_time = 0;

4721

4722

int pipefds[2];

4723

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

4724

4725

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

4726

const size_t ievent_max_size = (sizeof(struct inotify_event)

4727

+ NAME_MAX + 1);

4728

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4729

struct {

4730

struct inotify_event event;

4731

char name_buffer[NAME_MAX + 1];

4732

} ievent_buffer;

4733

struct inotify_event *const ievent = &ievent_buffer.event;

4734

4735

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

4736

ievent->mask = IN_DELETE;

4737

ievent->len = sizeof(dummy_file_name);

4738

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

4739

const size_t ievent_size = (sizeof(struct inotify_event)

4740

+ sizeof(dummy_file_name));

4741

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

4742

==, ievent_size);

4743

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

4744

4745

bool quit_now = false;

4746

buffer password = {};

4747

bool mandos_client_exited = false;

4748

bool password_is_read = false;

4749

__attribute__((cleanup(cleanup_queue)))

4750

task_queue *queue = create_queue();

4751

g_assert_nonnull(queue);

4752

4753

task_context task = {

4754

.func=read_inotify_event,

4755

.epoll_fd=epoll_fd,

4756

.fd=pipefds[0],

4757

.quit_now=&quit_now,

4758

.password=&password,

4759

.filename=strdup("/nonexistent"),

4760

.cancelled_filenames=&cancelled_filenames,

4761

.current_time=&current_time,

4762

.mandos_client_exited=&mandos_client_exited,

4763

.password_is_read=&password_is_read,

4764

};

4765

task.func(task, queue);

4766

g_assert_false(quit_now);

4767

g_assert_true(queue->next_run == 0);

4768

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

4769

4770

g_assert_nonnull(find_matching_task(queue, (task_context){

4771

.func=read_inotify_event,

4772

.epoll_fd=epoll_fd,

4773

.fd=pipefds[0],

4774

.quit_now=&quit_now,

4775

.password=&password,

4776

.filename=task.filename,

4777

.cancelled_filenames=&cancelled_filenames,

4778

.current_time=&current_time,

4779

.mandos_client_exited=&mandos_client_exited,

4780

.password_is_read=&password_is_read,

4781

}));

4782

4783

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4784

EPOLLIN | EPOLLRDHUP));

4785

4786

__attribute__((cleanup(cleanup_string)))

4787

char *filename = NULL;

4788

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

4789

dummy_file_name), >, 0);

4790

g_assert_nonnull(filename);

4791

g_assert_false(string_set_contains(cancelled_filenames, filename));

4792

}

4793

4794

static

4795

void test_open_and_parse_question_ENOENT(__attribute__((unused))

4796

test_fixture *fixture,

4797

__attribute__((unused))

4798

gconstpointer user_data){

4799

__attribute__((cleanup(cleanup_close)))

4800

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4801

g_assert_cmpint(epoll_fd, >=, 0);

4802

__attribute__((cleanup(string_set_clear)))

4803

string_set cancelled_filenames = {};

4804

bool mandos_client_exited = false;

4805

bool password_is_read = false;

4806

__attribute__((cleanup(cleanup_queue)))

4807

task_queue *queue = create_queue();

4808

g_assert_nonnull(queue);

4809

4810

char *const filename = strdup("/nonexistent");

4811

g_assert_nonnull(filename);

4812

task_context task = {

4813

.func=open_and_parse_question,

4814

.question_filename=filename,

4815

.epoll_fd=epoll_fd,

4816

.password=(buffer[]){{}},

4817

.filename=filename,

4818

.cancelled_filenames=&cancelled_filenames,

4819

.current_time=(mono_microsecs[]){0},

4820

.mandos_client_exited=&mandos_client_exited,

4821

.password_is_read=&password_is_read,

4822

};

4823

task.func(task, queue);

4824

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

4825

}

4826

4827

static void test_open_and_parse_question_EIO(__attribute__((unused))

4828

test_fixture *fixture,

4829

__attribute__((unused))

4830

gconstpointer user_data){

4831

__attribute__((cleanup(cleanup_close)))

4832

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4833

g_assert_cmpint(epoll_fd, >=, 0);

4834

__attribute__((cleanup(string_set_clear)))

4835

string_set cancelled_filenames = {};

4836

buffer password = {};

4837

bool mandos_client_exited = false;

4838

bool password_is_read = false;

4839

__attribute__((cleanup(cleanup_queue)))

4840

task_queue *queue = create_queue();

4841

g_assert_nonnull(queue);

4842

const mono_microsecs current_time = 0;

4843

4844

char *filename = strdup("/proc/self/mem");

4845

task_context task = {

4846

.func=open_and_parse_question,

4847

.question_filename=filename,

4848

.epoll_fd=epoll_fd,

4849

.password=&password,

4850

.filename=filename,

4851

.cancelled_filenames=&cancelled_filenames,

4852

.current_time=&current_time,

4853

.mandos_client_exited=&mandos_client_exited,

4854

.password_is_read=&password_is_read,

4855

};

4856

run_task_with_stderr_to_dev_null(task, queue);

4857

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

4858

}

4859

4860

static void

4861

test_open_and_parse_question_parse_error(__attribute__((unused))

4862

test_fixture *fixture,

4863

__attribute__((unused))

4864

gconstpointer user_data){

4865

__attribute__((cleanup(cleanup_close)))

4866

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4867

g_assert_cmpint(epoll_fd, >=, 0);

4868

__attribute__((cleanup(string_set_clear)))

4869

string_set cancelled_filenames = {};

4870

__attribute__((cleanup(cleanup_queue)))

4871

task_queue *queue = create_queue();

4872

g_assert_nonnull(queue);

4873

4874

__attribute__((cleanup(cleanup_string)))

4875

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

4876

g_assert_nonnull(tempfilename);

4877

int tempfile = mkostemp(tempfilename, O_CLOEXEC);

4878

g_assert_cmpint(tempfile, >, 0);

4879

const char bad_data[] = "this is bad syntax\n";

4880

g_assert_cmpint(write(tempfile, bad_data, sizeof(bad_data)),

4881

==, sizeof(bad_data));

4882

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

4883

4884

char *const filename = strdup(tempfilename);

4885

g_assert_nonnull(filename);

4886

task_context task = {

4887

.func=open_and_parse_question,

4888

.question_filename=filename,

4889

.epoll_fd=epoll_fd,

4890

.password=(buffer[]){{}},

4891

.filename=filename,

4892

.cancelled_filenames=&cancelled_filenames,

4893

.current_time=(mono_microsecs[]){0},

4894

.mandos_client_exited=(bool[]){false},

4895

.password_is_read=(bool[]){false},

4896

};

4897

run_task_with_stderr_to_dev_null(task, queue);

4898

4899

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

4900

4901

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

4902

}

4903

4904

static

4905

void test_open_and_parse_question_nosocket(__attribute__((unused))

4906

test_fixture *fixture,

4907

__attribute__((unused))

4908

gconstpointer user_data){

4909

__attribute__((cleanup(cleanup_close)))

4910

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4911

g_assert_cmpint(epoll_fd, >=, 0);

4912

__attribute__((cleanup(string_set_clear)))

4913

string_set cancelled_filenames = {};

4914

__attribute__((cleanup(cleanup_queue)))

4915

task_queue *queue = create_queue();

4916

g_assert_nonnull(queue);

4917

4918

__attribute__((cleanup(cleanup_string)))

4919

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

4920

g_assert_nonnull(tempfilename);

4921

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

4922

g_assert_cmpint(questionfile, >, 0);

4923

FILE *qf = fdopen(questionfile, "w");

4924

g_assert_cmpint(fprintf(qf, "[Ask]\nPID=1\n"), >, 0);

4925

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

4926

4927

char *const filename = strdup(tempfilename);

4928

g_assert_nonnull(filename);

4929

task_context task = {

4930

.func=open_and_parse_question,

4931

.question_filename=filename,

4932

.epoll_fd=epoll_fd,

4933

.password=(buffer[]){{}},

4934

.filename=filename,

4935

.cancelled_filenames=&cancelled_filenames,

4936

.current_time=(mono_microsecs[]){0},

4937

.mandos_client_exited=(bool[]){false},

4938

.password_is_read=(bool[]){false},

4939

};

4940

run_task_with_stderr_to_dev_null(task, queue);

4941

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

4942

4943

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

4944

}

4945

4946

static

4947

void test_open_and_parse_question_badsocket(__attribute__((unused))

4948

test_fixture *fixture,

4949

__attribute__((unused))

4950

gconstpointer user_data){

4951

__attribute__((cleanup(cleanup_close)))

4952

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4953

g_assert_cmpint(epoll_fd, >=, 0);

4954

__attribute__((cleanup(string_set_clear)))

4955

string_set cancelled_filenames = {};

4956

__attribute__((cleanup(cleanup_queue)))

4957

task_queue *queue = create_queue();

4958

g_assert_nonnull(queue);

4959

4960

__attribute__((cleanup(cleanup_string)))

4961

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

4962

g_assert_nonnull(tempfilename);

4963

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

4964

g_assert_cmpint(questionfile, >, 0);

4965

FILE *qf = fdopen(questionfile, "w");

4966

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=\nPID=1\n"), >, 0);

4967

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

4968

4969

char *const filename = strdup(tempfilename);

4970

g_assert_nonnull(filename);

4971

task_context task = {

4972

.func=open_and_parse_question,

4973

.question_filename=filename,

4974

.epoll_fd=epoll_fd,

4975

.password=(buffer[]){{}},

4976

.filename=filename,

4977

.cancelled_filenames=&cancelled_filenames,

4978

.current_time=(mono_microsecs[]){0},

4979

.mandos_client_exited=(bool[]){false},

4980

.password_is_read=(bool[]){false},

4981

};

4982

run_task_with_stderr_to_dev_null(task, queue);

4983

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

4984

4985

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

4986

}

4987

4988

static

4989

void test_open_and_parse_question_nopid(__attribute__((unused))

4990

test_fixture *fixture,

4991

__attribute__((unused))

4992

gconstpointer user_data){

4993

__attribute__((cleanup(cleanup_close)))

4994

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4995

g_assert_cmpint(epoll_fd, >=, 0);

4996

__attribute__((cleanup(string_set_clear)))

4997

string_set cancelled_filenames = {};

4998

__attribute__((cleanup(cleanup_queue)))

4999

task_queue *queue = create_queue();

5000

g_assert_nonnull(queue);

5001

5002

__attribute__((cleanup(cleanup_string)))

5003

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

5004

g_assert_nonnull(tempfilename);

5005

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5006

g_assert_cmpint(questionfile, >, 0);

5007

FILE *qf = fdopen(questionfile, "w");

5008

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\n"), >, 0);

5009

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

5010

5011

char *const filename = strdup(tempfilename);

5012

g_assert_nonnull(filename);

5013

task_context task = {

5014

.func=open_and_parse_question,

5015

.question_filename=filename,

5016

.epoll_fd=epoll_fd,

5017

.password=(buffer[]){{}},

5018

.filename=filename,

5019

.cancelled_filenames=&cancelled_filenames,

5020

.current_time=(mono_microsecs[]){0},

5021

.mandos_client_exited=(bool[]){false},

5022

.password_is_read=(bool[]){false},

5023

};

5024

run_task_with_stderr_to_dev_null(task, queue);

5025

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

5026

5027

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

5028

}

5029

5030

static

5031

void test_open_and_parse_question_badpid(__attribute__((unused))

5032

test_fixture *fixture,

5033

__attribute__((unused))

5034

gconstpointer user_data){

5035

__attribute__((cleanup(cleanup_close)))

5036

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5037

g_assert_cmpint(epoll_fd, >=, 0);

5038

__attribute__((cleanup(string_set_clear)))

5039

string_set cancelled_filenames = {};

5040

__attribute__((cleanup(cleanup_queue)))

5041

task_queue *queue = create_queue();

5042

g_assert_nonnull(queue);

5043

5044

__attribute__((cleanup(cleanup_string)))

5045

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

5046

g_assert_nonnull(tempfilename);

5047

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5048

g_assert_cmpint(questionfile, >, 0);

5049

FILE *qf = fdopen(questionfile, "w");

5050

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=\n"),

5051

>, 0);

5052

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

5053

5054

char *const filename = strdup(tempfilename);

5055

g_assert_nonnull(filename);

5056

task_context task = {

5057

.func=open_and_parse_question,

5058

.question_filename=filename,

5059

.epoll_fd=epoll_fd,

5060

.password=(buffer[]){{}},

5061

.filename=filename,

5062

.cancelled_filenames=&cancelled_filenames,

5063

.current_time=(mono_microsecs[]){0},

5064

.mandos_client_exited=(bool[]){false},

5065

.password_is_read=(bool[]){false},

5066

};

5067

run_task_with_stderr_to_dev_null(task, queue);

5068

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

5069

5070

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

5071

}

5072

5073

static void

5074

test_open_and_parse_question_noexist_pid(__attribute__((unused))

5075

test_fixture *fixture,

5076

__attribute__((unused))

5077

gconstpointer user_data){

5078

__attribute__((cleanup(cleanup_close)))

5079

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5080

g_assert_cmpint(epoll_fd, >=, 0);

5081

__attribute__((cleanup(string_set_clear)))

5082

string_set cancelled_filenames = {};

5083

buffer password = {};

5084

bool mandos_client_exited = false;

5085

bool password_is_read = false;

5086

__attribute__((cleanup(cleanup_queue)))

5087

task_queue *queue = create_queue();

5088

g_assert_nonnull(queue);

5089

const mono_microsecs current_time = 0;

5090

5091

/* Find value of sysctl kernel.pid_max */

5092

uintmax_t pid_max = 0;

5093

FILE *sysctl_pid_max = fopen("/proc/sys/kernel/pid_max", "r");

5094

g_assert_nonnull(sysctl_pid_max);

5095

g_assert_cmpint(fscanf(sysctl_pid_max, "%" PRIuMAX, &pid_max),

5096

==, 1);

5097

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

5098

5099

pid_t nonexisting_pid = ((pid_t)pid_max)+1;

5100

g_assert_true(nonexisting_pid > 0); /* Overflow check */

5101

5102

__attribute__((cleanup(cleanup_string)))

5103

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

5104

g_assert_nonnull(tempfilename);

5105

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5106

g_assert_cmpint(questionfile, >, 0);

5107

FILE *qf = fdopen(questionfile, "w");

5108

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"

5109

PRIuMAX"\n", (uintmax_t)nonexisting_pid),

5110

>, 0);

5111

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

5112

5113

char *const question_filename = strdup(tempfilename);

5114

g_assert_nonnull(question_filename);

5115

task_context task = {

5116

.func=open_and_parse_question,

5117

.question_filename=question_filename,

5118

.epoll_fd=epoll_fd,

5119

.password=&password,

5120

.filename=question_filename,

5121

.cancelled_filenames=&cancelled_filenames,

5122

.current_time=&current_time,

5123

.mandos_client_exited=&mandos_client_exited,

5124

.password_is_read=&password_is_read,

5125

};

5126

run_task_with_stderr_to_dev_null(task, queue);

5127

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

5128

5129

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

5130

}

5131

5132

static void

5133

test_open_and_parse_question_no_notafter(__attribute__((unused))

5134

test_fixture *fixture,

5135

__attribute__((unused))

5136

gconstpointer user_data){

5137

__attribute__((cleanup(cleanup_close)))

5138

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5139

g_assert_cmpint(epoll_fd, >=, 0);

5140

__attribute__((cleanup(string_set_clear)))

5141

string_set cancelled_filenames = {};

5142

buffer password = {};

5143

bool mandos_client_exited = false;

5144

bool password_is_read = false;

5145

__attribute__((cleanup(cleanup_queue)))

5146

task_queue *queue = create_queue();

5147

g_assert_nonnull(queue);

5148

const mono_microsecs current_time = 0;

5149

5150

__attribute__((cleanup(cleanup_string)))

5151

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

5152

g_assert_nonnull(tempfilename);

5153

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5154

g_assert_cmpint(questionfile, >, 0);

5155

FILE *qf = fdopen(questionfile, "w");

5156

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"

5157

PRIuMAX "\n", (uintmax_t)getpid()), >, 0);

5158

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

5159

5160

char *const filename = strdup(tempfilename);

5161

g_assert_nonnull(filename);

5162

task_context task = {

5163

.func=open_and_parse_question,

5164

.question_filename=filename,

5165

.epoll_fd=epoll_fd,

5166

.password=&password,

5167

.filename=filename,

5168

.cancelled_filenames=&cancelled_filenames,

5169

.current_time=&current_time,

5170

.mandos_client_exited=&mandos_client_exited,

5171

.password_is_read=&password_is_read,

5172

};

5173

task.func(task, queue);

5174

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

5175

5176

__attribute__((cleanup(cleanup_string)))

5177

char *socket_filename = strdup("/nonexistent");

5178

g_assert_nonnull(socket_filename);

5179

g_assert_nonnull(find_matching_task(queue, (task_context){

5180

.func=connect_question_socket,

5181

.question_filename=tempfilename,

5182

.filename=socket_filename,

5183

.epoll_fd=epoll_fd,

5184

.password=&password,

5185

.current_time=&current_time,

5186

.mandos_client_exited=&mandos_client_exited,

5187

.password_is_read=&password_is_read,

5188

}));

5189

5190

g_assert_true(queue->next_run != 0);

5191

5192

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

5193

}

5194

5195

static void

5196

test_open_and_parse_question_bad_notafter(__attribute__((unused))

5197

test_fixture *fixture,

5198

__attribute__((unused))

5199

gconstpointer user_data){

5200

__attribute__((cleanup(cleanup_close)))

5201

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5202

g_assert_cmpint(epoll_fd, >=, 0);

5203

__attribute__((cleanup(string_set_clear)))

5204

string_set cancelled_filenames = {};

5205

buffer password = {};

5206

bool mandos_client_exited = false;

5207

bool password_is_read = false;

5208

__attribute__((cleanup(cleanup_queue)))

5209

task_queue *queue = create_queue();

5210

g_assert_nonnull(queue);

5211

const mono_microsecs current_time = 0;

5212

5213

__attribute__((cleanup(cleanup_string)))

5214

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

5215

g_assert_nonnull(tempfilename);

5216

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5217

g_assert_cmpint(questionfile, >, 0);

5218

FILE *qf = fdopen(questionfile, "w");

5219

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"

5220

PRIuMAX "\nNotAfter=\n",

5221

(uintmax_t)getpid()), >, 0);

5222

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

5223

5224

char *const filename = strdup(tempfilename);

5225

g_assert_nonnull(filename);

5226

task_context task = {

5227

.func=open_and_parse_question,

5228

.question_filename=filename,

5229

.epoll_fd=epoll_fd,

5230

.password=&password,

5231

.filename=filename,

5232

.cancelled_filenames=&cancelled_filenames,

5233

.current_time=&current_time,

5234

.mandos_client_exited=&mandos_client_exited,

5235

.password_is_read=&password_is_read,

5236

};

5237

run_task_with_stderr_to_dev_null(task, queue);

5238

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

5239

5240

__attribute__((cleanup(cleanup_string)))

5241

char *socket_filename = strdup("/nonexistent");

5242

g_assert_nonnull(find_matching_task(queue, (task_context){

5243

.func=connect_question_socket,

5244

.question_filename=tempfilename,

5245

.filename=socket_filename,

5246

.epoll_fd=epoll_fd,

5247

.password=&password,

5248

.current_time=&current_time,

5249

.mandos_client_exited=&mandos_client_exited,

5250

.password_is_read=&password_is_read,

5251

}));

5252

g_assert_true(queue->next_run != 0);

5253

5254

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

5255

}

5256

5257

static

5258

void assert_open_and_parse_question_with_notafter(const mono_microsecs

5259

current_time,

5260

const mono_microsecs

5261

notafter,

5262

const mono_microsecs

5263

next_queue_run){

5264

__attribute__((cleanup(cleanup_close)))

5265

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5266

g_assert_cmpint(epoll_fd, >=, 0);

5267

__attribute__((cleanup(string_set_clear)))

5268

string_set cancelled_filenames = {};

5269

buffer password = {};

5270

bool mandos_client_exited = false;

5271

bool password_is_read = false;

5272

__attribute__((cleanup(cleanup_queue)))

5273

task_queue *queue = create_queue();

5274

g_assert_nonnull(queue);

5275

queue->next_run = next_queue_run;

5276

5277

__attribute__((cleanup(cleanup_string)))

5278

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

5279

g_assert_nonnull(tempfilename);

5280

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5281

g_assert_cmpint(questionfile, >, 0);

5282

FILE *qf = fdopen(questionfile, "w");

5283

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"

5284

PRIuMAX "\nNotAfter=%" PRIuMAX "\n",

5285

(uintmax_t)getpid(), notafter), >, 0);

5286

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

5287

5288

char *const filename = strdup(tempfilename);

5289

g_assert_nonnull(filename);

5290

task_context task = {

5291

.func=open_and_parse_question,

5292

.question_filename=filename,

5293

.epoll_fd=epoll_fd,

5294

.password=&password,

5295

.filename=filename,

5296

.cancelled_filenames=&cancelled_filenames,

5297

.current_time=&current_time,

5298

.mandos_client_exited=&mandos_client_exited,

5299

.password_is_read=&password_is_read,

5300

};

5301

task.func(task, queue);

5302

5303

if(queue->length >= 1){

5304

__attribute__((cleanup(cleanup_string)))

5305

char *socket_filename = strdup("/nonexistent");

5306

g_assert_nonnull(find_matching_task(queue, (task_context){

5307

.func=connect_question_socket,

5308

.filename=socket_filename,

5309

.epoll_fd=epoll_fd,

5310

.password=&password,

5311

.current_time=&current_time,

5312

.cancelled_filenames=&cancelled_filenames,

5313

.mandos_client_exited=&mandos_client_exited,

5314

.password_is_read=&password_is_read,

5315

}));

5316

g_assert_true(queue->next_run != 0);

5317

}

5318

5319

if(notafter == 0){

5320

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

5321

} else if(current_time >= notafter) {

5322

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

5323

} else {

5324

g_assert_nonnull(find_matching_task(queue, (task_context){

5325

.func=cancel_old_question,

5326

.question_filename=tempfilename,

5327

.filename=tempfilename,

5328

.notafter=notafter,

5329

.cancelled_filenames=&cancelled_filenames,

5330

.current_time=&current_time,

5331

}));

5332

}

5333

g_assert_true(queue->next_run == 1);

5334

5335

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

5336

}

5337

5338

static void

5339

test_open_and_parse_question_notafter_0(__attribute__((unused))

5340

test_fixture *fixture,

5341

__attribute__((unused))

5342

gconstpointer user_data){

5343

/* current_time, notafter, next_queue_run */

5344

assert_open_and_parse_question_with_notafter(0, 0, 0);

5345

}

5346

5347

static void

5348

test_open_and_parse_question_notafter_1(__attribute__((unused))

5349

test_fixture *fixture,

5350

__attribute__((unused))

5351

gconstpointer user_data){

5352

/* current_time, notafter, next_queue_run */

5353

assert_open_and_parse_question_with_notafter(0, 1, 0);

5354

}

5355

5356

static void

5357

test_open_and_parse_question_notafter_1_1(__attribute__((unused))

5358

test_fixture *fixture,

5359

__attribute__((unused))

5360

gconstpointer user_data){

5361

/* current_time, notafter, next_queue_run */

5362

assert_open_and_parse_question_with_notafter(0, 1, 1);

5363

}

5364

5365

static void

5366

test_open_and_parse_question_notafter_1_2(__attribute__((unused))

5367

test_fixture *fixture,

5368

__attribute__((unused))

5369

gconstpointer user_data){

5370

/* current_time, notafter, next_queue_run */

5371

assert_open_and_parse_question_with_notafter(0, 1, 2);

5372

}

5373

5374

static void

5375

test_open_and_parse_question_equal_notafter(__attribute__((unused))

5376

test_fixture *fixture,

5377

__attribute__((unused))

5378

gconstpointer user_data){

5379

/* current_time, notafter, next_queue_run */

5380

assert_open_and_parse_question_with_notafter(1, 1, 0);

5381

}

5382

5383

static void

5384

test_open_and_parse_question_late_notafter(__attribute__((unused))

5385

test_fixture *fixture,

5386

__attribute__((unused))

5387

gconstpointer user_data){

5388

/* current_time, notafter, next_queue_run */

5389

assert_open_and_parse_question_with_notafter(2, 1, 0);

5390

}

5391

5392

static void assert_cancel_old_question_param(const mono_microsecs

5393

next_queue_run,

5394

const mono_microsecs

5395

notafter,

5396

const mono_microsecs

5397

current_time,

5398

const mono_microsecs

5399

next_set_to){

5400

__attribute__((cleanup(string_set_clear)))

5401

string_set cancelled_filenames = {};

5402

__attribute__((cleanup(cleanup_queue)))

5403

task_queue *queue = create_queue();

5404

g_assert_nonnull(queue);

5405

queue->next_run = next_queue_run;

5406

5407

char *const question_filename = strdup("/nonexistent");

5408

g_assert_nonnull(question_filename);

5409

task_context task = {

5410

.func=cancel_old_question,

5411

.question_filename=question_filename,

5412

.filename=question_filename,

5413

.notafter=notafter,

5414

.cancelled_filenames=&cancelled_filenames,

5415

.current_time=&current_time,

5416

};

5417

task.func(task, queue);

5418

5419

if(current_time >= notafter){

5420

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

5421

g_assert_true(string_set_contains(cancelled_filenames,

5422

"/nonexistent"));

5423

} else {

5424

g_assert_nonnull(find_matching_task(queue, (task_context){

5425

.func=cancel_old_question,

5426

.question_filename=question_filename,

5427

.filename=question_filename,

5428

.notafter=notafter,

5429

.cancelled_filenames=&cancelled_filenames,

5430

.current_time=&current_time,

5431

}));

5432

5433

g_assert_false(string_set_contains(cancelled_filenames,

5434

question_filename));

5435

}

5436

g_assert_cmpuint((unsigned int)queue->next_run, ==,

5437

(unsigned int)next_set_to);

5438

}

5439

5440

static void test_cancel_old_question_0_1_2(__attribute__((unused))

5441

test_fixture *fixture,

5442

__attribute__((unused))

5443

gconstpointer user_data){

5444

/* next_queue_run unset,

5445

cancellation should happen because time has come,

5446

next_queue_run should be unchanged */

5447

/* next_queue_run, notafter, current_time, next_set_to */

5448

assert_cancel_old_question_param(0, 1, 2, 0);

5449

}

5450

5451

static void test_cancel_old_question_0_2_1(__attribute__((unused))

5452

test_fixture *fixture,

5453

__attribute__((unused))

5454

gconstpointer user_data){

5455

/* If next_queue_run is 0, meaning unset, and notafter is 2,

5456

and current_time is not yet notafter or greater,

5457

update value of next_queue_run to value of notafter */

5458

/* next_queue_run, notafter, current_time, next_set_to */

5459

assert_cancel_old_question_param(0, 2, 1, 2);

5460

}

5461

5462

static void test_cancel_old_question_1_2_3(__attribute__((unused))

5463

test_fixture *fixture,

5464

__attribute__((unused))

5465

gconstpointer user_data){

5466

/* next_queue_run 1,

5467

cancellation should happen because time has come,

5468

next_queue_run should be unchanged */

5469

/* next_queue_run, notafter, current_time, next_set_to */

5470

assert_cancel_old_question_param(1, 2, 3, 1);

5471

}

5472

5473

static void test_cancel_old_question_1_3_2(__attribute__((unused))

5474

test_fixture *fixture,

5475

__attribute__((unused))

5476

gconstpointer user_data){

5477

/* If next_queue_run is set,

5478

and current_time is not yet notafter or greater,

5479

and notafter is larger than next_queue_run

5480

next_queue_run should be unchanged */

5481

/* next_queue_run, notafter, current_time, next_set_to */

5482

assert_cancel_old_question_param(1, 3, 2, 1);

5483

}

5484

5485

static void test_cancel_old_question_2_1_3(__attribute__((unused))

5486

test_fixture *fixture,

5487

__attribute__((unused))

5488

gconstpointer user_data){

5489

/* next_queue_run 2,

5490

cancellation should happen because time has come,

5491

next_queue_run should be unchanged */

5492

/* next_queue_run, notafter, current_time, next_set_to */

5493

assert_cancel_old_question_param(2, 1, 3, 2);

5494

}

5495

5496

static void test_cancel_old_question_2_3_1(__attribute__((unused))

5497

test_fixture *fixture,

5498

__attribute__((unused))

5499

gconstpointer user_data){

5500

/* If next_queue_run is set,

5501

and current_time is not yet notafter or greater,

5502

and notafter is larger than next_queue_run

5503

next_queue_run should be unchanged */

5504

/* next_queue_run, notafter, current_time, next_set_to */

5505

assert_cancel_old_question_param(2, 3, 1, 2);

5506

}

5507

5508

static void test_cancel_old_question_3_1_2(__attribute__((unused))

5509

test_fixture *fixture,

5510

__attribute__((unused))

5511

gconstpointer user_data){

5512

/* next_queue_run 3,

5513

cancellation should happen because time has come,

5514

next_queue_run should be unchanged */

5515

/* next_queue_run, notafter, current_time, next_set_to */

5516

assert_cancel_old_question_param(3, 1, 2, 3);

5517

}

5518

5519

static void test_cancel_old_question_3_2_1(__attribute__((unused))

5520

test_fixture *fixture,

5521

__attribute__((unused))

5522

gconstpointer user_data){

5523

/* If next_queue_run is set,

5524

and current_time is not yet notafter or greater,

5525

and notafter is smaller than next_queue_run

5526

update value of next_queue_run to value of notafter */

5527

/* next_queue_run, notafter, current_time, next_set_to */

5528

assert_cancel_old_question_param(3, 2, 1, 2);

5529

}

5530

5531

static void

5532

test_connect_question_socket_name_too_long(__attribute__((unused))

5533

test_fixture *fixture,

5534

__attribute__((unused))

5535

gconstpointer user_data){

5536

__attribute__((cleanup(cleanup_close)))

5537

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5538

g_assert_cmpint(epoll_fd, >=, 0);

5539

const char question_filename[] = "/nonexistent/question";

5540

__attribute__((cleanup(string_set_clear)))

5541

string_set cancelled_filenames = {};

5542

__attribute__((cleanup(cleanup_queue)))

5543

task_queue *queue = create_queue();

5544

g_assert_nonnull(queue);

5545

__attribute__((cleanup(cleanup_string)))

5546

char *tempdir = make_temporary_directory();

5547

g_assert_nonnull(tempdir);

5548

struct sockaddr_un unix_socket = { .sun_family=AF_LOCAL };

5549

char socket_name[sizeof(unix_socket.sun_path)];

5550

memset(socket_name, 'x', sizeof(socket_name));

5551

socket_name[sizeof(socket_name)-1] = '\0';

5552

char *filename = NULL;

5553

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5554

>, 0);

5555

g_assert_nonnull(filename);

5556

5557

task_context task = {

5558

.func=connect_question_socket,

5559

.question_filename=strdup(question_filename),

5560

.epoll_fd=epoll_fd,

5561

.password=(buffer[]){{}},

5562

.filename=filename,

5563

.cancelled_filenames=&cancelled_filenames,

5564

.mandos_client_exited=(bool[]){false},

5565

.password_is_read=(bool[]){false},

5566

.current_time=(mono_microsecs[]){0},

5567

};

5568

g_assert_nonnull(task.question_filename);

5569

run_task_with_stderr_to_dev_null(task, queue);

5570

5571

g_assert_true(string_set_contains(cancelled_filenames,

5572

question_filename));

5573

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

5574

g_assert_true(queue->next_run == 0);

5575

5576

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

5577

}

5578

5579

static

5580

void test_connect_question_socket_connect_fail(__attribute__((unused))

5581

test_fixture *fixture,

5582

__attribute__((unused))

5583

gconstpointer

5584

user_data){

5585

__attribute__((cleanup(cleanup_close)))

5586

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5587

g_assert_cmpint(epoll_fd, >=, 0);

5588

const char question_filename[] = "/nonexistent/question";

5589

__attribute__((cleanup(string_set_clear)))

5590

string_set cancelled_filenames = {};

5591

const mono_microsecs current_time = 3;

5592

__attribute__((cleanup(cleanup_queue)))

5593

task_queue *queue = create_queue();

5594

g_assert_nonnull(queue);

5595

__attribute__((cleanup(cleanup_string)))

5596

char *tempdir = make_temporary_directory();

5597

g_assert_nonnull(tempdir);

5598

char socket_name[] = "nonexistent";

5599

char *filename = NULL;

5600

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5601

>, 0);

5602

g_assert_nonnull(filename);

5603

5604

task_context task = {

5605

.func=connect_question_socket,

5606

.question_filename=strdup(question_filename),

5607

.epoll_fd=epoll_fd,

5608

.password=(buffer[]){{}},

5609

.filename=filename,

5610

.cancelled_filenames=&cancelled_filenames,

5611

.mandos_client_exited=(bool[]){false},

5612

.password_is_read=(bool[]){false},

5613

.current_time=&current_time,

5614

};

5615

g_assert_nonnull(task.question_filename);

5616

run_task_with_stderr_to_dev_null(task, queue);

5617

5618

g_assert_nonnull(find_matching_task(queue, task));

5619

5620

g_assert_false(string_set_contains(cancelled_filenames,

5621

question_filename));

5622

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

5623

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

5624

5625

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

5626

}

5627

5628

static

5629

void test_connect_question_socket_bad_epoll(__attribute__((unused))

5630

test_fixture *fixture,

5631

__attribute__((unused))

5632

gconstpointer user_data){

5633

__attribute__((cleanup(cleanup_close)))

5634

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

5635

O_WRONLY | O_CLOEXEC | O_NOCTTY);

5636

__attribute__((cleanup(cleanup_string)))

5637

char *const question_filename = strdup("/nonexistent/question");

5638

g_assert_nonnull(question_filename);

5639

__attribute__((cleanup(string_set_clear)))

5640

string_set cancelled_filenames = {};

5641

const mono_microsecs current_time = 5;

5642

__attribute__((cleanup(cleanup_queue)))

5643

task_queue *queue = create_queue();

5644

g_assert_nonnull(queue);

5645

__attribute__((cleanup(cleanup_string)))

5646

char *tempdir = make_temporary_directory();

5647

g_assert_nonnull(tempdir);

5648

__attribute__((cleanup(cleanup_close)))

5649

const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM

5650

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

5651

g_assert_cmpint(sock_fd, >=, 0);

5652

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

5653

const char socket_name[] = "socket_name";

5654

__attribute__((cleanup(cleanup_string)))

5655

char *filename = NULL;

5656

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5657

>, 0);

5658

g_assert_nonnull(filename);

5659

g_assert_cmpint((int)strlen(filename), <,

5660

(int)sizeof(sock_name.sun_path));

5661

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

5662

sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';

5663

g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,

5664

(socklen_t)SUN_LEN(&sock_name)), >=, 0);

5665

task_context task = {

5666

.func=connect_question_socket,

5667

.question_filename=strdup(question_filename),

5668

.epoll_fd=epoll_fd,

5669

.password=(buffer[]){{}},

5670

.filename=strdup(filename),

5671

.cancelled_filenames=&cancelled_filenames,

5672

.mandos_client_exited=(bool[]){false},

5673

.password_is_read=(bool[]){false},

5674

.current_time=&current_time,

5675

};

5676

g_assert_nonnull(task.question_filename);

5677

run_task_with_stderr_to_dev_null(task, queue);

5678

5679

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

5680

const task_context *const added_task

5681

= find_matching_task(queue, task);

5682

g_assert_nonnull(added_task);

5683

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

5684

5685

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

5686

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

5687

}

5688

5689

static

5690

void test_connect_question_socket_usable(__attribute__((unused))

5691

test_fixture *fixture,

5692

__attribute__((unused))

5693

gconstpointer user_data){

5694

__attribute__((cleanup(cleanup_close)))

5695

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5696

g_assert_cmpint(epoll_fd, >=, 0);

5697

__attribute__((cleanup(cleanup_string)))

5698

char *const question_filename = strdup("/nonexistent/question");

5699

g_assert_nonnull(question_filename);

5700

__attribute__((cleanup(string_set_clear)))

5701

string_set cancelled_filenames = {};

5702

buffer password = {};

5703

bool mandos_client_exited = false;

5704

bool password_is_read = false;

5705

const mono_microsecs current_time = 0;

5706

__attribute__((cleanup(cleanup_queue)))

5707

task_queue *queue = create_queue();

5708

g_assert_nonnull(queue);

5709

__attribute__((cleanup(cleanup_string)))

5710

char *tempdir = make_temporary_directory();

5711

g_assert_nonnull(tempdir);

5712

__attribute__((cleanup(cleanup_close)))

5713

const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM

5714

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

5715

g_assert_cmpint(sock_fd, >=, 0);

5716

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

5717

const char socket_name[] = "socket_name";

5718

__attribute__((cleanup(cleanup_string)))

5719

char *filename = NULL;

5720

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5721

>, 0);

5722

g_assert_nonnull(filename);

5723

g_assert_cmpint((int)strlen(filename), <,

5724

(int)sizeof(sock_name.sun_path));

5725

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

5726

sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';

5727

g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,

5728

(socklen_t)SUN_LEN(&sock_name)), >=, 0);

5729

task_context task = {

5730

.func=connect_question_socket,

5731

.question_filename=strdup(question_filename),

5732

.epoll_fd=epoll_fd,

5733

.password=&password,

5734

.filename=strdup(filename),

5735

.cancelled_filenames=&cancelled_filenames,

5736

.mandos_client_exited=&mandos_client_exited,

5737

.password_is_read=&password_is_read,

5738

.current_time=&current_time,

5739

};

5740

g_assert_nonnull(task.question_filename);

5741

task.func(task, queue);

5742

5743

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

5744

const task_context *const added_task

5745

= find_matching_task(queue, (task_context){

5746

.func=send_password_to_socket,

5747

.question_filename=question_filename,

5748

.filename=filename,

5749

.epoll_fd=epoll_fd,

5750

.password=&password,

5751

.cancelled_filenames=&cancelled_filenames,

5752

.mandos_client_exited=&mandos_client_exited,

5753

.password_is_read=&password_is_read,

5754

.current_time=&current_time,

5755

});

5756

g_assert_nonnull(added_task);

5757

g_assert_cmpint(added_task->fd, >, 0);

5758

5759

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5760

EPOLLOUT));

5761

5762

const int fd = added_task->fd;

5763

g_assert_cmpint(fd, >, 0);

5764

g_assert_true(fd_has_cloexec_and_nonblock(fd));

5765

5766

/* write to fd */

5767

char write_data[PIPE_BUF];

5768

{

5769

/* Construct test password buffer */

5770

/* Start with + since that is what the real procotol uses */

5771

write_data[0] = '+';

5772

/* Set a special character at string end just to mark the end */

5773

write_data[sizeof(write_data)-2] = 'y';

5774

/* Set NUL at buffer end, as suggested by the protocol */

5775

write_data[sizeof(write_data)-1] = '\0';

5776

/* Fill rest of password with 'x' */

5777

memset(write_data+1, 'x', sizeof(write_data)-3);

5778

g_assert_cmpint((int)send(fd, write_data, sizeof(write_data),

5779

MSG_NOSIGNAL), ==, sizeof(write_data));

5780

}

5781

5782

/* read from sock_fd */

5783

char read_data[sizeof(write_data)];

5784

g_assert_cmpint((int)read(sock_fd, read_data, sizeof(read_data)),

5785

==, sizeof(read_data));

5786

5787

g_assert_true(memcmp(write_data, read_data, sizeof(write_data))

5788

== 0);

5789

5790

/* writing to sock_fd should fail */

5791

g_assert_cmpint(send(sock_fd, write_data, sizeof(write_data),

5792

MSG_NOSIGNAL), <, 0);

5793

5794

/* reading from fd should fail */

5795

g_assert_cmpint((int)recv(fd, read_data, sizeof(read_data),

5796

MSG_NOSIGNAL), <, 0);

5797

5798

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

5799

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

5800

}

5801

5802

static void

5803

test_send_password_to_socket_client_not_exited(__attribute__((unused))

5804

test_fixture *fixture,

5805

__attribute__((unused))

5806

gconstpointer

5807

user_data){

5808

__attribute__((cleanup(cleanup_close)))

5809

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5810

g_assert_cmpint(epoll_fd, >=, 0);

5811

__attribute__((cleanup(cleanup_string)))

5812

char *const question_filename = strdup("/nonexistent/question");

5813

g_assert_nonnull(question_filename);

5814

__attribute__((cleanup(cleanup_string)))

5815

char *const filename = strdup("/nonexistent/socket");

5816

g_assert_nonnull(filename);

5817

__attribute__((cleanup(string_set_clear)))

5818

string_set cancelled_filenames = {};

5819

buffer password = {};

5820

bool password_is_read = true;

5821

__attribute__((cleanup(cleanup_queue)))

5822

task_queue *queue = create_queue();

5823

g_assert_nonnull(queue);

5824

int socketfds[2];

5825

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5826

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5827

socketfds), ==, 0);

5828

__attribute__((cleanup(cleanup_close)))

5829

const int read_socket = socketfds[0];

5830

const int write_socket = socketfds[1];

5831

task_context task = {

5832

.func=send_password_to_socket,

5833

.question_filename=strdup(question_filename),

5834

.filename=strdup(filename),

5835

.epoll_fd=epoll_fd,

5836

.fd=write_socket,

5837

.password=&password,

5838

.cancelled_filenames=&cancelled_filenames,

5839

.mandos_client_exited=(bool[]){false},

5840

.password_is_read=&password_is_read,

5841

.current_time=(mono_microsecs[]){0},

5842

};

5843

g_assert_nonnull(task.question_filename);

5844

5845

task.func(task, queue);

5846

5847

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

5848

5849

const task_context *const added_task

5850

= find_matching_task(queue, task);

5851

g_assert_nonnull(added_task);

5852

g_assert_cmpuint((unsigned int)password.length, ==, 0);

5853

g_assert_true(password_is_read);

5854

5855

g_assert_cmpint(added_task->fd, >, 0);

5856

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5857

EPOLLOUT));

5858

}

5859

5860

static void

5861

test_send_password_to_socket_password_not_read(__attribute__((unused))

5862

test_fixture *fixture,

5863

__attribute__((unused))

5864

gconstpointer

5865

user_data){

5866

__attribute__((cleanup(cleanup_close)))

5867

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5868

g_assert_cmpint(epoll_fd, >=, 0);

5869

__attribute__((cleanup(cleanup_string)))

5870

char *const question_filename = strdup("/nonexistent/question");

5871

g_assert_nonnull(question_filename);

5872

__attribute__((cleanup(cleanup_string)))

5873

char *const filename = strdup("/nonexistent/socket");

5874

__attribute__((cleanup(string_set_clear)))

5875

string_set cancelled_filenames = {};

5876

buffer password = {};

5877

__attribute__((cleanup(cleanup_queue)))

5878

task_queue *queue = create_queue();

5879

g_assert_nonnull(queue);

5880

int socketfds[2];

5881

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5882

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5883

socketfds), ==, 0);

5884

__attribute__((cleanup(cleanup_close)))

5885

const int read_socket = socketfds[0];

5886

const int write_socket = socketfds[1];

5887

task_context task = {

5888

.func=send_password_to_socket,

5889

.question_filename=strdup(question_filename),

5890

.filename=strdup(filename),

5891

.epoll_fd=epoll_fd,

5892

.fd=write_socket,

5893

.password=&password,

5894

.cancelled_filenames=&cancelled_filenames,

5895

.mandos_client_exited=(bool[]){false},

5896

.password_is_read=(bool[]){false},

5897

.current_time=(mono_microsecs[]){0},

5898

};

5899

g_assert_nonnull(task.question_filename);

5900

5901

task.func(task, queue);

5902

5903

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

5904

5905

const task_context *const added_task = find_matching_task(queue,

5906

task);

5907

g_assert_nonnull(added_task);

5908

g_assert_cmpuint((unsigned int)password.length, ==, 0);

5909

g_assert_true(queue->next_run == 0);

5910

5911

g_assert_cmpint(added_task->fd, >, 0);

5912

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5913

EPOLLOUT));

5914

}

5915

5916

static

5917

void test_send_password_to_socket_EMSGSIZE(__attribute__((unused))

5918

test_fixture *fixture,

5919

__attribute__((unused))

5920

gconstpointer user_data){

5921

__attribute__((cleanup(cleanup_close)))

5922

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5923

g_assert_cmpint(epoll_fd, >=, 0);

5924

const char question_filename[] = "/nonexistent/question";

5925

char *const filename = strdup("/nonexistent/socket");

5926

__attribute__((cleanup(string_set_clear)))

5927

string_set cancelled_filenames = {};

5928

const size_t oversized = 1024*1024; /* Limit seems to be 212960 */

5929

__attribute__((cleanup(cleanup_buffer)))

5930

buffer password = {

5931

.data=malloc(oversized),

5932

.length=oversized,

5933

.allocated=oversized,

5934

};

5935

g_assert_nonnull(password.data);

5936

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

5937

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

5938

}

5939

/* Construct test password buffer */

5940

/* Start with + since that is what the real procotol uses */

5941

password.data[0] = '+';

5942

/* Set a special character at string end just to mark the end */

5943

password.data[oversized-3] = 'y';

5944

/* Set NUL at buffer end, as suggested by the protocol */

5945

password.data[oversized-2] = '\0';

5946

/* Fill rest of password with 'x' */

5947

memset(password.data+1, 'x', oversized-3);

5948

5949

__attribute__((cleanup(cleanup_queue)))

5950

task_queue *queue = create_queue();

5951

g_assert_nonnull(queue);

5952

int socketfds[2];

5953

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5954

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5955

socketfds), ==, 0);

5956

__attribute__((cleanup(cleanup_close)))

5957

const int read_socket = socketfds[0];

5958

__attribute__((cleanup(cleanup_close)))

5959

const int write_socket = socketfds[1];

5960

task_context task = {

5961

.func=send_password_to_socket,

5962

.question_filename=strdup(question_filename),

5963

.filename=filename,

5964

.epoll_fd=epoll_fd,

5965

.fd=write_socket,

5966

.password=&password,

5967

.cancelled_filenames=&cancelled_filenames,

5968

.mandos_client_exited=(bool[]){true},

5969

.password_is_read=(bool[]){true},

5970

.current_time=(mono_microsecs[]){0},

5971

};

5972

g_assert_nonnull(task.question_filename);

5973

5974

run_task_with_stderr_to_dev_null(task, queue);

5975

5976

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

5977

g_assert_true(string_set_contains(cancelled_filenames,

5978

question_filename));

5979

}

5980

5981

static void test_send_password_to_socket_retry(__attribute__((unused))

5982

test_fixture *fixture,

5983

__attribute__((unused))

5984

gconstpointer

5985

user_data){

5986

__attribute__((cleanup(cleanup_close)))

5987

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5988

g_assert_cmpint(epoll_fd, >=, 0);

5989

__attribute__((cleanup(cleanup_string)))

5990

char *const question_filename = strdup("/nonexistent/question");

5991

g_assert_nonnull(question_filename);

5992

__attribute__((cleanup(cleanup_string)))

5993

char *const filename = strdup("/nonexistent/socket");

5994

g_assert_nonnull(filename);

5995

__attribute__((cleanup(string_set_clear)))

5996

string_set cancelled_filenames = {};

5997

__attribute__((cleanup(cleanup_buffer)))

5998

buffer password = {};

5999

6000

__attribute__((cleanup(cleanup_queue)))

6001

task_queue *queue = create_queue();

6002

g_assert_nonnull(queue);

6003

int socketfds[2];

6004

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

6005

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

6006

socketfds), ==, 0);

6007

__attribute__((cleanup(cleanup_close)))

6008

const int read_socket = socketfds[0];

6009

const int write_socket = socketfds[1];

6010

/* Close the server side socket to force ECONNRESET on client */

6011

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

6012

task_context task = {

6013

.func=send_password_to_socket,

6014

.question_filename=strdup(question_filename),

6015

.filename=strdup(filename),

6016

.epoll_fd=epoll_fd,

6017

.fd=write_socket,

6018

.password=&password,

6019

.cancelled_filenames=&cancelled_filenames,

6020

.mandos_client_exited=(bool[]){true},

6021

.password_is_read=(bool[]){true},

6022

.current_time=(mono_microsecs[]){0},

6023

};

6024

g_assert_nonnull(task.question_filename);

6025

6026

task.func(task, queue);

6027

6028

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

6029

6030

const task_context *const added_task = find_matching_task(queue,

6031

task);

6032

g_assert_nonnull(added_task);

6033

g_assert_cmpuint((unsigned int)password.length, ==, 0);

6034

6035

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

6036

EPOLLOUT));

6037

}

6038

6039

static

6040

void test_send_password_to_socket_bad_epoll(__attribute__((unused))

6041

test_fixture *fixture,

6042

__attribute__((unused))

6043

gconstpointer user_data){

6044

__attribute__((cleanup(cleanup_close)))

6045

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

6046

O_WRONLY | O_CLOEXEC | O_NOCTTY);

6047

__attribute__((cleanup(cleanup_string)))

6048

char *const question_filename = strdup("/nonexistent/question");

6049

g_assert_nonnull(question_filename);

6050

__attribute__((cleanup(cleanup_string)))

6051

char *const filename = strdup("/nonexistent/socket");

6052

g_assert_nonnull(filename);

6053

__attribute__((cleanup(string_set_clear)))

6054

string_set cancelled_filenames = {};

6055

__attribute__((cleanup(cleanup_buffer)))

6056

buffer password = {};

6057

6058

const mono_microsecs current_time = 11;

6059

__attribute__((cleanup(cleanup_queue)))

6060

task_queue *queue = create_queue();

6061

g_assert_nonnull(queue);

6062

int socketfds[2];

6063

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

6064

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

6065

socketfds), ==, 0);

6066

__attribute__((cleanup(cleanup_close)))

6067

const int read_socket = socketfds[0];

6068

const int write_socket = socketfds[1];

6069

/* Close the server side socket to force ECONNRESET on client */

6070

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

6071

task_context task = {

6072

.func=send_password_to_socket,

6073

.question_filename=strdup(question_filename),

6074

.filename=strdup(filename),

6075

.epoll_fd=epoll_fd,

6076

.fd=write_socket,

6077

.password=&password,

6078

.cancelled_filenames=&cancelled_filenames,

6079

.mandos_client_exited=(bool[]){true},

6080

.password_is_read=(bool[]){true},

6081

.current_time=&current_time,

6082

};

6083

g_assert_nonnull(task.question_filename);

6084

6085

run_task_with_stderr_to_dev_null(task, queue);

6086

6087

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

6088

6089

const task_context *const added_task = find_matching_task(queue,

6090

task);

6091

g_assert_nonnull(added_task);

6092

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

6093

g_assert_cmpuint((unsigned int)password.length, ==, 0);

6094

}

6095

6096

static void assert_send_password_to_socket_password(buffer password){

6097

__attribute__((cleanup(cleanup_close)))

6098

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6099

g_assert_cmpint(epoll_fd, >=, 0);

6100

char *const question_filename = strdup("/nonexistent/question");

6101

g_assert_nonnull(question_filename);

6102

char *const filename = strdup("/nonexistent/socket");

6103

g_assert_nonnull(filename);

6104

__attribute__((cleanup(string_set_clear)))

6105

string_set cancelled_filenames = {};

6106

6107

__attribute__((cleanup(cleanup_queue)))

6108

task_queue *queue = create_queue();

6109

g_assert_nonnull(queue);

6110

int socketfds[2];

6111

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

6112

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

6113

socketfds), ==, 0);

6114

__attribute__((cleanup(cleanup_close)))

6115

const int read_socket = socketfds[0];

6116

const int write_socket = socketfds[1];

6117

task_context task = {

6118

.func=send_password_to_socket,

6119

.question_filename=question_filename,

6120

.filename=filename,

6121

.epoll_fd=epoll_fd,

6122

.fd=write_socket,

6123

.password=&password,

6124

.cancelled_filenames=&cancelled_filenames,

6125

.mandos_client_exited=(bool[]){true},

6126

.password_is_read=(bool[]){true},

6127

.current_time=(mono_microsecs[]){0},

6128

};

6129

6130

char *expected_written_data = malloc(password.length + 2);

6131

g_assert_nonnull(expected_written_data);

6132

expected_written_data[0] = '+';

6133

expected_written_data[password.length + 1] = '\0';

6134

if(password.length > 0){

6135

g_assert_nonnull(password.data);

6136

memcpy(expected_written_data + 1, password.data, password.length);

6137

}

6138

6139

task.func(task, queue);

6140

6141

char buf[PIPE_BUF];

6142

g_assert_cmpint((int)read(read_socket, buf, PIPE_BUF), ==,

6143

(int)(password.length + 2));

6144

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

6145

6146

g_assert_true(memcmp(expected_written_data, buf,

6147

password.length + 2) == 0);

6148

6149

g_assert_true(epoll_set_does_not_contain(epoll_fd, write_socket));

6150

6151

free(expected_written_data);

6152

}

6153

6154

static void

6155

test_send_password_to_socket_null_password(__attribute__((unused))

6156

test_fixture *fixture,

6157

__attribute__((unused))

6158

gconstpointer user_data){

6159

__attribute__((cleanup(cleanup_buffer)))

6160

buffer password = {};

6161

assert_send_password_to_socket_password(password);

6162

}

6163

6164

static void

6165

test_send_password_to_socket_empty_password(__attribute__((unused))

6166

test_fixture *fixture,

6167

__attribute__((unused))

6168

gconstpointer user_data){

6169

__attribute__((cleanup(cleanup_buffer)))

6170

buffer password = {

6171

.data=malloc(1), /* because malloc(0) may return NULL */

6172

.length=0,

6173

.allocated=0, /* deliberate lie */

6174

};

6175

g_assert_nonnull(password.data);

6176

assert_send_password_to_socket_password(password);

6177

}

6178

6179

static void

6180

test_send_password_to_socket_empty_str_pass(__attribute__((unused))

6181

test_fixture *fixture,

6182

__attribute__((unused))

6183

gconstpointer user_data){

6184

__attribute__((cleanup(cleanup_buffer)))

6185

buffer password = {

6186

.data=strdup(""),

6187

.length=0,

6188

.allocated=1,

6189

};

6190

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

6191

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

6192

}

6193

assert_send_password_to_socket_password(password);

6194

}

6195

6196

static void

6197

test_send_password_to_socket_text_password(__attribute__((unused))

6198

test_fixture *fixture,

6199

__attribute__((unused))

6200

gconstpointer user_data){

6201

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

6202

__attribute__((cleanup(cleanup_buffer)))

6203

buffer password = {

6204

.data = strdup(dummy_test_password),

6205

.length = strlen(dummy_test_password),

6206

.allocated = sizeof(dummy_test_password),

6207

};

6208

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

6209

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

6210

}

6211

assert_send_password_to_socket_password(password);

6212

}

6213

6214

static void

6215

test_send_password_to_socket_binary_password(__attribute__((unused))

6216

test_fixture *fixture,

6217

__attribute__((unused))

6218

gconstpointer user_data){

6219

__attribute__((cleanup(cleanup_buffer)))

6220

buffer password = {

6221

.data=malloc(255),

6222

.length=255,

6223

.allocated=255,

6224

};

6225

g_assert_nonnull(password.data);

6226

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

6227

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

6228

}

6229

char c = 1; /* Start at 1, avoiding NUL */

6230

for(int i=0; i < 255; i++){

6231

password.data[i] = c++;

6232

}

6233

assert_send_password_to_socket_password(password);

6234

}

6235

6236

static void

6237

test_send_password_to_socket_nuls_in_password(__attribute__((unused))

6238

test_fixture *fixture,

6239

__attribute__((unused))

6240

gconstpointer

6241

user_data){

6242

char test_password[] = {'\0', 'a', '\0', 'b', '\0', 'c', '\0'};

6243

__attribute__((cleanup(cleanup_buffer)))

6244

buffer password = {

6245

.data=malloc(sizeof(test_password)),

6246

.length=sizeof(test_password),

6247

.allocated=sizeof(test_password),

6248

};

6249

g_assert_nonnull(password.data);

6250

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

6251

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

6252

}

6253

memcpy(password.data, test_password, password.allocated);

6254

assert_send_password_to_socket_password(password);

6255

}

6256

6257

static bool assert_add_existing_questions_to_devnull(task_queue

6258

*const,

6259

const int,

6260

buffer *const,

6261

string_set *,

6262

const

6263

mono_microsecs

6264

*const,

6265

bool *const,

6266

bool *const,

6267

const char

6268

*const);

6269

6270

static void test_add_existing_questions_ENOENT(__attribute__((unused))

6271

test_fixture *fixture,

6272

__attribute__((unused))

6273

gconstpointer

6274

user_data){

6275

__attribute__((cleanup(cleanup_queue)))

6276

task_queue *queue = create_queue();

6277

g_assert_nonnull(queue);

6278

__attribute__((cleanup(cleanup_close)))

6279

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6280

g_assert_cmpint(epoll_fd, >=, 0);

6281

__attribute__((cleanup(string_set_clear)))

6282

string_set cancelled_filenames = {};

6283

6284

g_assert_false(assert_add_existing_questions_to_devnull

6285

(queue,

6286

epoll_fd,

6287

(buffer[]){{}}, /* password */

6288

&cancelled_filenames,

6289

(mono_microsecs[]){0}, /* current_time */

6290

(bool[]){false}, /* mandos_client_exited */

6291

(bool[]){false}, /* password_is_read */

6292

"/nonexistent")); /* dirname */

6293

6294

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

6295

}

6296

6297

static

6298

bool assert_add_existing_questions_to_devnull(task_queue

6299

*const queue,

6300

const int

6301

epoll_fd,

6302

buffer *const

6303

password,

6304

string_set

6305

*cancelled_filenames,

6306

const mono_microsecs

6307

*const current_time,

6308

bool *const

6309

mandos_client_exited,

6310

bool *const

6311

password_is_read,

6312

const char *const

6313

dirname){

6314

__attribute__((cleanup(cleanup_close)))

6315

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

6316

O_WRONLY | O_CLOEXEC | O_NOCTTY);

6317

g_assert_cmpint(devnull_fd, >=, 0);

6318

__attribute__((cleanup(cleanup_close)))

6319

const int real_stderr_fd = dup(STDERR_FILENO);

6320

g_assert_cmpint(real_stderr_fd, >=, 0);

6321

dup2(devnull_fd, STDERR_FILENO);

6322

const bool ret = add_existing_questions(queue, epoll_fd, password,

6323

cancelled_filenames,

6324

current_time,

6325

mandos_client_exited,

6326

password_is_read, dirname);

6327

dup2(real_stderr_fd, STDERR_FILENO);

6328

return ret;

6329

}

6330

6331

static

6332

void test_add_existing_questions_no_questions(__attribute__((unused))

6333

test_fixture *fixture,

6334

__attribute__((unused))

6335

gconstpointer

6336

user_data){

6337

__attribute__((cleanup(cleanup_queue)))

6338

task_queue *queue = create_queue();

6339

g_assert_nonnull(queue);

6340

__attribute__((cleanup(cleanup_close)))

6341

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6342

g_assert_cmpint(epoll_fd, >=, 0);

6343

__attribute__((cleanup(string_set_clear)))

6344

string_set cancelled_filenames = {};

6345

__attribute__((cleanup(cleanup_string)))

6346

char *tempdir = make_temporary_directory();

6347

g_assert_nonnull(tempdir);

6348

6349

g_assert_false(assert_add_existing_questions_to_devnull

6350

(queue,

6351

epoll_fd,

6352

(buffer[]){{}}, /* password */

6353

&cancelled_filenames,

6354

(mono_microsecs[]){0}, /* current_time */

6355

(bool[]){false}, /* mandos_client_exited */

6356

(bool[]){false}, /* password_is_read */

6357

tempdir));

6358

6359

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

6360

6361

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

6362

}

6363

6364

static char *make_question_file_in_directory(const char *const);

6365

6366

static

6367

void test_add_existing_questions_one_question(__attribute__((unused))

6368

test_fixture *fixture,

6369

__attribute__((unused))

6370

gconstpointer

6371

user_data){

6372

__attribute__((cleanup(cleanup_queue)))

6373

task_queue *queue = create_queue();

6374

g_assert_nonnull(queue);

6375

__attribute__((cleanup(cleanup_close)))

6376

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6377

g_assert_cmpint(epoll_fd, >=, 0);

6378

__attribute__((cleanup(cleanup_buffer)))

6379

buffer password = {};

6380

__attribute__((cleanup(string_set_clear)))

6381

string_set cancelled_filenames = {};

6382

const mono_microsecs current_time = 0;

6383

bool mandos_client_exited = false;

6384

bool password_is_read = false;

6385

__attribute__((cleanup(cleanup_string)))

6386

char *tempdir = make_temporary_directory();

6387

g_assert_nonnull(tempdir);

6388

__attribute__((cleanup(cleanup_string)))

6389

char *question_filename

6390

= make_question_file_in_directory(tempdir);

6391

g_assert_nonnull(question_filename);

6392

6393

g_assert_true(assert_add_existing_questions_to_devnull

6394

(queue,

6395

epoll_fd,

6396

&password,

6397

&cancelled_filenames,

6398

&current_time,

6399

&mandos_client_exited,

6400

&password_is_read,

6401

tempdir));

6402

6403

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

6404

6405

g_assert_nonnull(find_matching_task(queue, (task_context){

6406

.func=open_and_parse_question,

6407

.epoll_fd=epoll_fd,

6408

.filename=question_filename,

6409

.question_filename=question_filename,

6410

.password=&password,

6411

.cancelled_filenames=&cancelled_filenames,

6412

.current_time=&current_time,

6413

.mandos_client_exited=&mandos_client_exited,

6414

.password_is_read=&password_is_read,

6415

}));

6416

6417

g_assert_true(queue->next_run == 1);

6418

6419

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

6420

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

6421

}

6422

6423

static char *make_question_file_in_directory(const char

6424

*const dir){

6425

return make_temporary_prefixed_file_in_directory("ask.", dir);

6426

}

6427

6428

static

6429

void test_add_existing_questions_two_questions(__attribute__((unused))

6430

test_fixture *fixture,

6431

__attribute__((unused))

6432

gconstpointer

6433

user_data){

6434

__attribute__((cleanup(cleanup_queue)))

6435

task_queue *queue = create_queue();

6436

g_assert_nonnull(queue);

6437

__attribute__((cleanup(cleanup_close)))

6438

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6439

g_assert_cmpint(epoll_fd, >=, 0);

6440

__attribute__((cleanup(cleanup_buffer)))

6441

buffer password = {};

6442

__attribute__((cleanup(string_set_clear)))

6443

string_set cancelled_filenames = {};

6444

const mono_microsecs current_time = 0;

6445

bool mandos_client_exited = false;

6446

bool password_is_read = false;

6447

__attribute__((cleanup(cleanup_string)))

6448

char *tempdir = make_temporary_directory();

6449

g_assert_nonnull(tempdir);

6450

__attribute__((cleanup(cleanup_string)))

6451

char *question_filename1

6452

= make_question_file_in_directory(tempdir);

6453

g_assert_nonnull(question_filename1);

6454

__attribute__((cleanup(cleanup_string)))

6455

char *question_filename2

6456

= make_question_file_in_directory(tempdir);

6457

g_assert_nonnull(question_filename2);

6458

6459

g_assert_true(assert_add_existing_questions_to_devnull

6460

(queue,

6461

epoll_fd,

6462

&password,

6463

&cancelled_filenames,

6464

&current_time,

6465

&mandos_client_exited,

6466

&password_is_read,

6467

tempdir));

6468

6469

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

6470

6471

g_assert_true(queue->next_run == 1);

6472

6473

__attribute__((cleanup(string_set_clear)))

6474

string_set seen_questions = {};

6475

6476

bool queue_contains_question_opener(char *const question_filename){

6477

return(find_matching_task(queue, (task_context){

6478

.func=open_and_parse_question,

6479

.epoll_fd=epoll_fd,

6480

.question_filename=question_filename,

6481

.password=&password,

6482

.cancelled_filenames=&cancelled_filenames,

6483

.current_time=&current_time,

6484

.mandos_client_exited=&mandos_client_exited,

6485

.password_is_read=&password_is_read,

6486

}) != NULL);

6487

}

6488

6489

g_assert_true(queue_contains_question_opener(question_filename1));

6490

g_assert_true(queue_contains_question_opener(question_filename2));

6491

6492

g_assert_true(queue->next_run == 1);

6493

6494

g_assert_cmpint(unlink(question_filename1), ==, 0);

6495

g_assert_cmpint(unlink(question_filename2), ==, 0);

6496

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

6497

}

6498

6499

static void

6500

test_add_existing_questions_non_questions(__attribute__((unused))

6501

test_fixture *fixture,

6502

__attribute__((unused))

6503

gconstpointer user_data){

6504

__attribute__((cleanup(cleanup_queue)))

6505

task_queue *queue = create_queue();

6506

g_assert_nonnull(queue);

6507

__attribute__((cleanup(cleanup_close)))

6508

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6509

g_assert_cmpint(epoll_fd, >=, 0);

6510

__attribute__((cleanup(string_set_clear)))

6511

string_set cancelled_filenames = {};

6512

__attribute__((cleanup(cleanup_string)))

6513

char *tempdir = make_temporary_directory();

6514

g_assert_nonnull(tempdir);

6515

__attribute__((cleanup(cleanup_string)))

6516

char *question_filename1

6517

= make_temporary_file_in_directory(tempdir);

6518

g_assert_nonnull(question_filename1);

6519

__attribute__((cleanup(cleanup_string)))

6520

char *question_filename2

6521

= make_temporary_file_in_directory(tempdir);

6522

g_assert_nonnull(question_filename2);

6523

6524

g_assert_false(assert_add_existing_questions_to_devnull

6525

(queue,

6526

epoll_fd,

6527

(buffer[]){{}}, /* password */

6528

&cancelled_filenames,

6529

(mono_microsecs[]){0}, /* current_time */

6530

(bool[]){false}, /* mandos_client_exited */

6531

(bool[]){false}, /* password_is_read */

6532

tempdir));

6533

6534

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

6535

6536

g_assert_cmpint(unlink(question_filename1), ==, 0);

6537

g_assert_cmpint(unlink(question_filename2), ==, 0);

6538

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

6539

}

6540

6541

static void

6542

test_add_existing_questions_both_types(__attribute__((unused))

6543

test_fixture *fixture,

6544

__attribute__((unused))

6545

gconstpointer user_data){

6546

__attribute__((cleanup(cleanup_queue)))

6547

task_queue *queue = create_queue();

6548

g_assert_nonnull(queue);

6549

__attribute__((cleanup(cleanup_close)))

6550

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6551

g_assert_cmpint(epoll_fd, >=, 0);

6552

__attribute__((cleanup(cleanup_buffer)))

6553

buffer password = {};

6554

__attribute__((cleanup(string_set_clear)))

6555

string_set cancelled_filenames = {};

6556

const mono_microsecs current_time = 0;

6557

bool mandos_client_exited = false;

6558

bool password_is_read = false;

6559

__attribute__((cleanup(cleanup_string)))

6560

char *tempdir = make_temporary_directory();

6561

g_assert_nonnull(tempdir);

6562

__attribute__((cleanup(cleanup_string)))

6563

char *tempfilename1 = make_temporary_file_in_directory(tempdir);

6564

g_assert_nonnull(tempfilename1);

6565

__attribute__((cleanup(cleanup_string)))

6566

char *tempfilename2 = make_temporary_file_in_directory(tempdir);

6567

g_assert_nonnull(tempfilename2);

6568

__attribute__((cleanup(cleanup_string)))

6569

char *question_filename

6570

= make_question_file_in_directory(tempdir);

6571

g_assert_nonnull(question_filename);

6572

6573

g_assert_true(assert_add_existing_questions_to_devnull

6574

(queue,

6575

epoll_fd,

6576

&password,

6577

&cancelled_filenames,

6578

&current_time,

6579

&mandos_client_exited,

6580

&password_is_read,

6581

tempdir));

6582

6583

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

6584

6585

g_assert_nonnull(find_matching_task(queue, (task_context){

6586

.func=open_and_parse_question,

6587

.epoll_fd=epoll_fd,

6588

.filename=question_filename,

6589

.question_filename=question_filename,

6590

.password=&password,

6591

.cancelled_filenames=&cancelled_filenames,

6592

.current_time=&current_time,

6593

.mandos_client_exited=&mandos_client_exited,

6594

.password_is_read=&password_is_read,

6595

}));

6596

6597

g_assert_true(queue->next_run == 1);

6598

6599

g_assert_cmpint(unlink(tempfilename1), ==, 0);

6600

g_assert_cmpint(unlink(tempfilename2), ==, 0);

6601

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

6602

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

6603

}

6604

6605

static void test_wait_for_event_timeout(__attribute__((unused))

6606

test_fixture *fixture,

6607

__attribute__((unused))

6608

gconstpointer user_data){

6609

__attribute__((cleanup(cleanup_close)))

6610

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6611

g_assert_cmpint(epoll_fd, >=, 0);

6612

6613

g_assert_true(wait_for_event(epoll_fd, 1, 0));

6614

}

6615

6616

static void test_wait_for_event_event(__attribute__((unused))

6617

test_fixture *fixture,

6618

__attribute__((unused))

6619

gconstpointer user_data){

6620

__attribute__((cleanup(cleanup_close)))

6621

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6622

g_assert_cmpint(epoll_fd, >=, 0);

6623

int pipefds[2];

6624

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

6625

__attribute__((cleanup(cleanup_close)))

6626

const int read_pipe = pipefds[0];

6627

__attribute__((cleanup(cleanup_close)))

6628

const int write_pipe = pipefds[1];

6629

g_assert_cmpint(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, read_pipe,

6630

&(struct epoll_event)

6631

{ .events=EPOLLIN | EPOLLRDHUP }), ==, 0);

6632

g_assert_cmpint((int)write(write_pipe, "x", 1), ==, 1);

6633

6634

g_assert_true(wait_for_event(epoll_fd, 0, 0));

6635

}

6636

6637

static void test_wait_for_event_sigchld(test_fixture *fixture,

6638

__attribute__((unused))

6639

gconstpointer user_data){

6640

const pid_t pid = fork();

6641

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

6642

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

6643

_exit(EXIT_FAILURE);

6644

}

6645

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

6646

_exit(EXIT_FAILURE);

6647

}

6648

exit(EXIT_SUCCESS);

6649

}

6650

g_assert_true(pid != -1);

6651

__attribute__((cleanup(cleanup_close)))

6652

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6653

g_assert_cmpint(epoll_fd, >=, 0);

6654

6655

g_assert_true(wait_for_event(epoll_fd, 0, 0));

6656

6657

int status;

6658

g_assert_true(waitpid(pid, &status, 0) == pid);

6659

g_assert_true(WIFEXITED(status));

6660

g_assert_cmpint(WEXITSTATUS(status), ==, EXIT_SUCCESS);

6661

}

6662

6663

static void test_run_queue_zeroes_next_run(__attribute__((unused))

6664

test_fixture *fixture,

6665

__attribute__((unused))

6666

gconstpointer user_data){

6667

__attribute__((cleanup(cleanup_queue)))

6668

task_queue *queue = create_queue();

6669

g_assert_nonnull(queue);

6670

queue->next_run = 1;

6671

__attribute__((cleanup(cleanup_close)))

6672

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6673

__attribute__((cleanup(string_set_clear)))

6674

string_set cancelled_filenames = {};

6675

bool quit_now = false;

6676

6677

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

6678

g_assert_false(quit_now);

6679

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

6680

}

6681

6682

static

6683

void test_run_queue_clears_cancelled_filenames(__attribute__((unused))

6684

test_fixture *fixture,

6685

__attribute__((unused))

6686

gconstpointer

6687

user_data){

6688

__attribute__((cleanup(cleanup_queue)))

6689

task_queue *queue = create_queue();

6690

g_assert_nonnull(queue);

6691

__attribute__((cleanup(string_set_clear)))

6692

string_set cancelled_filenames = {};

6693

bool quit_now = false;

6694

const char question_filename[] = "/nonexistent/question_filename";

6695

g_assert_true(string_set_add(&cancelled_filenames,

6696

question_filename));

6697

6698

g_assert_true(add_to_queue(queue,

6699

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

6700

6701

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

6702

g_assert_false(quit_now);

6703

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

6704

g_assert_false(string_set_contains(cancelled_filenames,

6705

question_filename));

6706

}

6707

6708

static

6709

void test_run_queue_skips_cancelled_filenames(__attribute__((unused))

6710

test_fixture *fixture,

6711

__attribute__((unused))

6712

gconstpointer

6713

user_data){

6714

__attribute__((cleanup(cleanup_queue)))

6715

task_queue *queue = create_queue();

6716

g_assert_nonnull(queue);

6717

__attribute__((cleanup(string_set_clear)))

6718

string_set cancelled_filenames = {};

6719

bool quit_now = false;

6720

int pipefds[2];

6721

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

6722

__attribute__((cleanup(cleanup_close)))

6723

const int read_pipe = pipefds[0];

6724

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

6725

const char question_filename[] = "/nonexistent/question_filename";

6726

g_assert_true(string_set_add(&cancelled_filenames,

6727

question_filename));

6728

__attribute__((nonnull))

6729

void quit_func(const task_context task,

6730

__attribute__((unused)) task_queue *const q){

6731

g_assert_nonnull(task.quit_now);

6732

*task.quit_now = true;

6733

}

6734

task_context task = {

6735

.func=quit_func,

6736

.question_filename=strdup(question_filename),

6737

.quit_now=&quit_now,

6738

.fd=read_pipe,

6739

};

6740

g_assert_nonnull(task.question_filename);

6741

6742

g_assert_true(add_to_queue(queue, task));

6743

6744

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

6745

g_assert_false(quit_now);

6746

6747

/* read_pipe should be closed already */

6748

errno = 0;

6749

bool read_pipe_closed = (close(read_pipe) == -1);

6750

read_pipe_closed &= (errno == EBADF);

6751

g_assert_true(read_pipe_closed);

6752

}

6753

6754

static void test_run_queue_one_task(__attribute__((unused))

6755

test_fixture *fixture,

6756

__attribute__((unused))

6757

gconstpointer 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

6765

__attribute__((nonnull))

6766

void next_run_func(__attribute__((unused))

6767

const task_context task,

6768

task_queue *const q){

6769

q->next_run = 1;

6770

}

6771

6772

task_context task = {

6773

.func=next_run_func,

6774

};

6775

g_assert_true(add_to_queue(queue, task));

6776

6777

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

6778

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

6779

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

6780

}

6781

6782

static void test_run_queue_two_tasks(__attribute__((unused))

6783

test_fixture *fixture,

6784

__attribute__((unused))

6785

gconstpointer user_data){

6786

__attribute__((cleanup(cleanup_queue)))

6787

task_queue *queue = create_queue();

6788

g_assert_nonnull(queue);

6789

queue->next_run = 1;

6790

__attribute__((cleanup(string_set_clear)))

6791

string_set cancelled_filenames = {};

6792

bool quit_now = false;

6793

bool mandos_client_exited = false;

6794

6795

__attribute__((nonnull))

6796

void next_run_func(__attribute__((unused))

6797

const task_context task,

6798

task_queue *const q){

6799

q->next_run = 1;

6800

}

6801

6802

__attribute__((nonnull))

6803

void exited_func(const task_context task,

6804

__attribute__((unused)) task_queue *const q){

6805

*task.mandos_client_exited = true;

6806

}

6807

6808

task_context task1 = {

6809

.func=next_run_func,

6810

};

6811

g_assert_true(add_to_queue(queue, task1));

6812

6813

task_context task2 = {

6814

.func=exited_func,

6815

.mandos_client_exited=&mandos_client_exited,

6816

};

6817

g_assert_true(add_to_queue(queue, task2));

6818

6819

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

6820

g_assert_false(quit_now);

6821

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

6822

g_assert_true(mandos_client_exited);

6823

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

6824

}

6825

6826

static void test_run_queue_two_tasks_quit(__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

__attribute__((cleanup(string_set_clear)))

6834

string_set cancelled_filenames = {};

6835

bool quit_now = false;

6836

bool mandos_client_exited = false;

6837

bool password_is_read = false;

6838

6839

__attribute__((nonnull))

6840

void set_exited_func(const task_context task,

6841

__attribute__((unused)) task_queue *const q){

6842

*task.mandos_client_exited = true;

6843

*task.quit_now = true;

6844

}

6845

task_context task1 = {

6846

.func=set_exited_func,

6847

.quit_now=&quit_now,

6848

.mandos_client_exited=&mandos_client_exited,

6849

};

6850

g_assert_true(add_to_queue(queue, task1));

6851

6852

__attribute__((nonnull))

6853

void set_read_func(const task_context task,

6854

__attribute__((unused)) task_queue *const q){

6855

*task.quit_now = true;

6856

*task.password_is_read = true;

6857

}

6858

task_context task2 = {

6859

.func=set_read_func,

6860

.quit_now=&quit_now,

6861

.password_is_read=&password_is_read,

6862

};

6863

g_assert_true(add_to_queue(queue, task2));

6864

6865

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

6866

g_assert_true(quit_now);

6867

g_assert_true(mandos_client_exited xor password_is_read);

6868

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

6869

}

6870

6871

static void test_run_queue_two_tasks_cleanup(__attribute__((unused))

6872

test_fixture *fixture,

6873

__attribute__((unused))

6874

gconstpointer user_data){

6875

__attribute__((cleanup(cleanup_queue)))

6876

task_queue *queue = create_queue();

6877

g_assert_nonnull(queue);

6878

__attribute__((cleanup(string_set_clear)))

6879

string_set cancelled_filenames = {};

6880

int pipefds[2];

6881

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

6882

__attribute__((cleanup(cleanup_close)))

6883

const int read_pipe = pipefds[0];

6884

__attribute__((cleanup(cleanup_close)))

6885

const int write_pipe = pipefds[1];

6886

bool quit_now = false;

6887

6888

__attribute__((nonnull))

6889

void read_func(const task_context task,

6890

__attribute__((unused)) task_queue *const q){

6891

*task.quit_now = true;

6892

}

6893

task_context task1 = {

6894

.func=read_func,

6895

.quit_now=&quit_now,

6896

.fd=read_pipe,

6897

};

6898

g_assert_true(add_to_queue(queue, task1));

6899

6900

__attribute__((nonnull))

6901

void write_func(const task_context task,

6902

__attribute__((unused)) task_queue *const q){

6903

*task.quit_now = true;

6904

}

6905

task_context task2 = {

6906

.func=write_func,

6907

.quit_now=&quit_now,

6908

.fd=write_pipe,

6909

};

6910

g_assert_true(add_to_queue(queue, task2));

6911

6912

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

6913

g_assert_true(quit_now);

6914

6915

/* Either read_pipe or write_pipe should be closed already */

6916

errno = 0;

6917

bool close_read_pipe = (close(read_pipe) == -1);

6918

close_read_pipe &= (errno == EBADF);

6919

errno = 0;

6920

bool close_write_pipe = (close(write_pipe) == -1);

6921

close_write_pipe &= (errno == EBADF);

6922

g_assert_true(close_read_pipe xor close_write_pipe);

6923

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

6924

}

6925

6926

static void test_setup_signal_handler(__attribute__((unused))

6927

test_fixture *fixture,

6928

__attribute__((unused))

6929

gconstpointer user_data){

6930

/* Save current SIGCHLD action, whatever it is */

6931

struct sigaction expected_sigchld_action;

6932

g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),

6933

==, 0);

6934

6935

/* Act; i.e. run the setup_signal_handler() function */

6936

struct sigaction actual_old_sigchld_action;

6937

g_assert_true(setup_signal_handler(&actual_old_sigchld_action));

6938

6939

/* Check that the function correctly set "actual_old_sigchld_action"

6940

to the same values as the previously saved

6941

"expected_sigchld_action" */

6942

/* Check member sa_handler */

6943

g_assert_true(actual_old_sigchld_action.sa_handler

6944

== expected_sigchld_action.sa_handler);

6945

/* Check member sa_mask */

6946

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

6947

const int expected_old_block_state

6948

= sigismember(&expected_sigchld_action.sa_mask, signum);

6949

g_assert_cmpint(expected_old_block_state, >=, 0);

6950

const int actual_old_block_state

6951

= sigismember(&actual_old_sigchld_action.sa_mask, signum);

6952

g_assert_cmpint(actual_old_block_state, >=, 0);

6953

g_assert_cmpint(actual_old_block_state,

6954

==, expected_old_block_state);

6955

}

6956

/* Check member sa_flags */

6957

g_assert_true((actual_old_sigchld_action.sa_flags

6958

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

6959

== (expected_sigchld_action.sa_flags

6960

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));

6961

6962

/* Retrieve the current signal handler for SIGCHLD as set by

6963

setup_signal_handler() */

6964

struct sigaction actual_new_sigchld_action;

6965

g_assert_cmpint(sigaction(SIGCHLD, NULL,

6966

&actual_new_sigchld_action), ==, 0);

6967

/* Check that the signal handler (member sa_handler) is correctly

6968

set to the "handle_sigchld" function */

6969

g_assert_true(actual_new_sigchld_action.sa_handler != SIG_DFL);

6970

g_assert_true(actual_new_sigchld_action.sa_handler != SIG_IGN);

6971

g_assert_true(actual_new_sigchld_action.sa_handler

6972

== handle_sigchld);

6973

/* Check (in member sa_mask) that at least a handful of signals are

6974

actually blocked during the signal handler */

6975

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

6976

int actual_new_block_state;

6977

switch(signum){

6978

case SIGTERM:

6979

case SIGINT:

6980

case SIGQUIT:

6981

case SIGHUP:

6982

actual_new_block_state

6983

= sigismember(&actual_new_sigchld_action.sa_mask, signum);

6984

g_assert_cmpint(actual_new_block_state, ==, 1);

6985

continue;

6986

case SIGKILL: /* non-blockable */

6987

case SIGSTOP: /* non-blockable */

6988

case SIGCHLD: /* always blocked */

6989

default:

6990

continue;

6991

}

6992

}

6993

/* Check member sa_flags */

6994

g_assert_true((actual_new_sigchld_action.sa_flags

6995

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

6996

== (SA_NOCLDSTOP | SA_RESTART));

6997

6998

/* Restore signal handler */

6999

g_assert_cmpint(sigaction(SIGCHLD, &expected_sigchld_action, NULL),

7000

==, 0);

7001

}

7002

7003

static void test_restore_signal_handler(__attribute__((unused))

7004

test_fixture *fixture,

7005

__attribute__((unused))

7006

gconstpointer user_data){

7007

/* Save current SIGCHLD action, whatever it is */

7008

struct sigaction expected_sigchld_action;

7009

g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),

7010

==, 0);

7011

/* Since we haven't established a signal handler yet, there should

7012

not be one established. But another test may have relied on

7013

restore_signal_handler() to restore the signal handler, and if

7014

restore_signal_handler() is buggy (which we should be prepared

7015

for in this test) the signal handler may not have been restored

7016

properly; check for this: */

7017

g_assert_true(expected_sigchld_action.sa_handler != handle_sigchld);

7018

7019

/* Establish a signal handler */

7020

struct sigaction sigchld_action = {

7021

.sa_handler=handle_sigchld,

7022

.sa_flags=SA_RESTART | SA_NOCLDSTOP,

7023

};

7024

g_assert_cmpint(sigfillset(&sigchld_action.sa_mask), ==, 0);

7025

g_assert_cmpint(sigaction(SIGCHLD, &sigchld_action, NULL), ==, 0);

7026

7027

/* Act; i.e. run the restore_signal_handler() function */

7028

g_assert_true(restore_signal_handler(&expected_sigchld_action));

7029

7030

/* Retrieve the restored signal handler data */

7031

struct sigaction actual_restored_sigchld_action;

7032

g_assert_cmpint(sigaction(SIGCHLD, NULL,

7033

&actual_restored_sigchld_action), ==, 0);

7034

7035

/* Check that the function correctly restored the signal action, as

7036

saved in "actual_restored_sigchld_action", to the same values as

7037

the previously saved "expected_sigchld_action" */

7038

/* Check member sa_handler */

7039

g_assert_true(actual_restored_sigchld_action.sa_handler

7040

== expected_sigchld_action.sa_handler);

7041

/* Check member sa_mask */

7042

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

7043

const int expected_old_block_state

7044

= sigismember(&expected_sigchld_action.sa_mask, signum);

7045

g_assert_cmpint(expected_old_block_state, >=, 0);

7046

const int actual_restored_block_state

7047

= sigismember(&actual_restored_sigchld_action.sa_mask, signum);

7048

g_assert_cmpint(actual_restored_block_state, >=, 0);

7049

g_assert_cmpint(actual_restored_block_state,

7050

==, expected_old_block_state);

7051

}

7052

/* Check member sa_flags */

7053

g_assert_true((actual_restored_sigchld_action.sa_flags

7054

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

7055

== (expected_sigchld_action.sa_flags

7056

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));

7057

}

7058

7059

static void test_block_sigchld(__attribute__((unused))

7060

test_fixture *fixture,

7061

__attribute__((unused))

7062

gconstpointer user_data){

7063

/* Save original signal mask */

7064

sigset_t expected_sigmask;

7065

g_assert_cmpint(pthread_sigmask(-1, NULL, &expected_sigmask),

7066

==, 0);

7067

7068

/* Make sure SIGCHLD is unblocked for this test */

7069

sigset_t sigchld_sigmask;

7070

g_assert_cmpint(sigemptyset(&sigchld_sigmask), ==, 0);

7071

g_assert_cmpint(sigaddset(&sigchld_sigmask, SIGCHLD), ==, 0);

7072

g_assert_cmpint(pthread_sigmask(SIG_UNBLOCK, &sigchld_sigmask,

7073

NULL), ==, 0);

7074

7075

/* Act; i.e. run the block_sigchld() function */

7076

sigset_t actual_old_sigmask;

7077

g_assert_true(block_sigchld(&actual_old_sigmask));

7078

7079

/* Check the actual_old_sigmask; it should be the same as the

7080

previously saved signal mask "expected_sigmask". */

7081

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

7082

const int expected_old_block_state

7083

= sigismember(&expected_sigmask, signum);

7084

g_assert_cmpint(expected_old_block_state, >=, 0);

7085

const int actual_old_block_state

7086

= sigismember(&actual_old_sigmask, signum);

7087

g_assert_cmpint(actual_old_block_state, >=, 0);

7088

g_assert_cmpint(actual_old_block_state,

7089

==, expected_old_block_state);

7090

}

7091

7092

/* Retrieve the newly set signal mask */

7093

sigset_t actual_sigmask;

7094

g_assert_cmpint(pthread_sigmask(-1, NULL, &actual_sigmask), ==, 0);

7095

7096

/* SIGCHLD should be blocked */

7097

g_assert_cmpint(sigismember(&actual_sigmask, SIGCHLD), ==, 1);

7098

7099

/* Restore signal mask */

7100

g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &expected_sigmask,

7101

NULL), ==, 0);

7102

}

7103

7104

static void test_restore_sigmask(__attribute__((unused))

7105

test_fixture *fixture,

7106

__attribute__((unused))

7107

gconstpointer user_data){

7108

/* Save original signal mask */

7109

sigset_t orig_sigmask;

7110

g_assert_cmpint(pthread_sigmask(-1, NULL, &orig_sigmask), ==, 0);

7111

7112

/* Make sure SIGCHLD is blocked 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_BLOCK, &sigchld_sigmask,

7117

NULL), ==, 0);

7118

7119

/* Act; i.e. run the restore_sigmask() function */

7120

g_assert_true(restore_sigmask(&orig_sigmask));

7121

7122

/* Retrieve the newly restored signal mask */

7123

sigset_t restored_sigmask;

7124

g_assert_cmpint(pthread_sigmask(-1, NULL, &restored_sigmask),

7125

==, 0);

7126

7127

/* Check the restored_sigmask; it should be the same as the

7128

previously saved signal mask "orig_sigmask". */

7129

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

7130

const int orig_block_state = sigismember(&orig_sigmask, signum);

7131

g_assert_cmpint(orig_block_state, >=, 0);

7132

const int restored_block_state = sigismember(&restored_sigmask,

7133

signum);

7134

g_assert_cmpint(restored_block_state, >=, 0);

7135

g_assert_cmpint(restored_block_state, ==, orig_block_state);

7136

}

7137

7138

/* Restore signal mask */

7139

g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &orig_sigmask,

7140

NULL), ==, 0);

7141

}

7142

7143

static void test_parse_arguments_noargs(__attribute__((unused))

7144

test_fixture *fixture,

7145

__attribute__((unused))

7146

gconstpointer user_data){

7147

char *argv[] = {

7148

strdup("prgname"),

7149

NULL };

7150

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7151

7152

char *agent_directory = NULL;

7153

char *helper_directory = NULL;

7154

uid_t user = 0;

7155

gid_t group = 0;

7156

char *mandos_argz = NULL;

7157

size_t mandos_argz_length = 0;

7158

7159

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7160

&helper_directory, &user, &group,

7161

&mandos_argz, &mandos_argz_length));

7162

g_assert_null(agent_directory);

7163

g_assert_null(helper_directory);

7164

g_assert_true(user == 0);

7165

g_assert_true(group == 0);

7166

g_assert_null(mandos_argz);

7167

g_assert_true(mandos_argz_length == 0);

7168

7169

for(char **arg = argv; *arg != NULL; arg++){

7170

free(*arg);

7171

}

7172

}

7173

7174

__attribute__((nonnull))

7175

static bool parse_arguments_devnull(int argc, char *argv[],

7176

const bool exit_failure,

7177

char **agent_directory,

7178

char **helper_directory,

7179

uid_t *const user,

7180

gid_t *const group,

7181

char **mandos_argz,

7182

size_t *mandos_argz_length){

7183

7184

FILE *real_stderr = stderr;

7185

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

7186

g_assert_nonnull(devnull);

7187

stderr = devnull;

7188

7189

const bool ret = parse_arguments(argc, argv, exit_failure,

7190

agent_directory,

7191

helper_directory, user, group,

7192

mandos_argz, mandos_argz_length);

7193

const error_t saved_errno = errno;

7194

7195

stderr = real_stderr;

7196

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

7197

7198

errno = saved_errno;

7199

7200

return ret;

7201

}

7202

7203

static void test_parse_arguments_invalid(__attribute__((unused))

7204

test_fixture *fixture,

7205

__attribute__((unused))

7206

gconstpointer user_data){

7207

char *argv[] = {

7208

strdup("prgname"),

7209

strdup("--invalid"),

7210

NULL };

7211

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7212

7213

char *agent_directory = NULL;

7214

char *helper_directory = NULL;

7215

uid_t user = 0;

7216

gid_t group = 0;

7217

char *mandos_argz = NULL;

7218

size_t mandos_argz_length = 0;

7219

7220

g_assert_false(parse_arguments_devnull(argc, argv, false,

7221

&agent_directory,

7222

&helper_directory, &user,

7223

&group, &mandos_argz,

7224

&mandos_argz_length));

7225

7226

g_assert_true(errno == EINVAL);

7227

g_assert_null(agent_directory);

7228

g_assert_null(helper_directory);

7229

g_assert_null(mandos_argz);

7230

g_assert_true(mandos_argz_length == 0);

7231

7232

for(char **arg = argv; *arg != NULL; arg++){

7233

free(*arg);

7234

}

7235

}

7236

7237

static void test_parse_arguments_long_dir(__attribute__((unused))

7238

test_fixture *fixture,

7239

__attribute__((unused))

7240

gconstpointer user_data){

7241

char *argv[] = {

7242

strdup("prgname"),

7243

strdup("--agent-directory"),

7244

strdup("/tmp"),

7245

NULL };

7246

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7247

7248

__attribute__((cleanup(cleanup_string)))

7249

char *agent_directory = NULL;

7250

char *helper_directory = NULL;

7251

uid_t user = 0;

7252

gid_t group = 0;

7253

__attribute__((cleanup(cleanup_string)))

7254

char *mandos_argz = NULL;

7255

size_t mandos_argz_length = 0;

7256

7257

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7258

&helper_directory, &user, &group,

7259

&mandos_argz, &mandos_argz_length));

7260

7261

g_assert_cmpstr(agent_directory, ==, "/tmp");

7262

g_assert_null(helper_directory);

7263

g_assert_true(user == 0);

7264

g_assert_true(group == 0);

7265

g_assert_null(mandos_argz);

7266

g_assert_true(mandos_argz_length == 0);

7267

7268

for(char **arg = argv; *arg != NULL; arg++){

7269

free(*arg);

7270

}

7271

}

7272

7273

static void test_parse_arguments_short_dir(__attribute__((unused))

7274

test_fixture *fixture,

7275

__attribute__((unused))

7276

gconstpointer user_data){

7277

char *argv[] = {

7278

strdup("prgname"),

7279

strdup("-d"),

7280

strdup("/tmp"),

7281

NULL };

7282

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7283

7284

__attribute__((cleanup(cleanup_string)))

7285

char *agent_directory = NULL;

7286

char *helper_directory = NULL;

7287

uid_t user = 0;

7288

gid_t group = 0;

7289

__attribute__((cleanup(cleanup_string)))

7290

char *mandos_argz = NULL;

7291

size_t mandos_argz_length = 0;

7292

7293

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7294

&helper_directory, &user, &group,

7295

&mandos_argz, &mandos_argz_length));

7296

7297

g_assert_cmpstr(agent_directory, ==, "/tmp");

7298

g_assert_null(helper_directory);

7299

g_assert_true(user == 0);

7300

g_assert_true(group == 0);

7301

g_assert_null(mandos_argz);

7302

g_assert_true(mandos_argz_length == 0);

7303

7304

for(char **arg = argv; *arg != NULL; arg++){

7305

free(*arg);

7306

}

7307

}

7308

7309

static

7310

void test_parse_arguments_helper_directory(__attribute__((unused))

7311

test_fixture *fixture,

7312

__attribute__((unused))

7313

gconstpointer user_data){

7314

char *argv[] = {

7315

strdup("prgname"),

7316

strdup("--helper-directory"),

7317

strdup("/tmp"),

7318

NULL };

7319

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7320

7321

char *agent_directory = NULL;

7322

__attribute__((cleanup(cleanup_string)))

7323

char *helper_directory = NULL;

7324

uid_t user = 0;

7325

gid_t group = 0;

7326

__attribute__((cleanup(cleanup_string)))

7327

char *mandos_argz = NULL;

7328

size_t mandos_argz_length = 0;

7329

7330

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7331

&helper_directory, &user, &group,

7332

&mandos_argz, &mandos_argz_length));

7333

7334

g_assert_cmpstr(helper_directory, ==, "/tmp");

7335

g_assert_null(agent_directory);

7336

g_assert_true(user == 0);

7337

g_assert_true(group == 0);

7338

g_assert_null(mandos_argz);

7339

g_assert_true(mandos_argz_length == 0);

7340

7341

for(char **arg = argv; *arg != NULL; arg++){

7342

free(*arg);

7343

}

7344

}

7345

7346

static

7347

void test_parse_arguments_plugin_helper_dir(__attribute__((unused))

7348

test_fixture *fixture,

7349

__attribute__((unused))

7350

gconstpointer user_data){

7351

char *argv[] = {

7352

strdup("prgname"),

7353

strdup("--plugin-helper-dir"),

7354

strdup("/tmp"),

7355

NULL };

7356

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7357

7358

char *agent_directory = NULL;

7359

__attribute__((cleanup(cleanup_string)))

7360

char *helper_directory = NULL;

7361

uid_t user = 0;

7362

gid_t group = 0;

7363

__attribute__((cleanup(cleanup_string)))

7364

char *mandos_argz = NULL;

7365

size_t mandos_argz_length = 0;

7366

7367

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7368

&helper_directory, &user, &group,

7369

&mandos_argz, &mandos_argz_length));

7370

7371

g_assert_cmpstr(helper_directory, ==, "/tmp");

7372

g_assert_null(agent_directory);

7373

g_assert_true(user == 0);

7374

g_assert_true(group == 0);

7375

g_assert_null(mandos_argz);

7376

g_assert_true(mandos_argz_length == 0);

7377

7378

for(char **arg = argv; *arg != NULL; arg++){

7379

free(*arg);

7380

}

7381

}

7382

7383

static void test_parse_arguments_user(__attribute__((unused))

7384

test_fixture *fixture,

7385

__attribute__((unused))

7386

gconstpointer user_data){

7387

char *argv[] = {

7388

strdup("prgname"),

7389

strdup("--user"),

7390

strdup("1000"),

7391

NULL };

7392

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7393

7394

char *agent_directory = NULL;

7395

__attribute__((cleanup(cleanup_string)))

7396

char *helper_directory = NULL;

7397

uid_t user = 0;

7398

gid_t group = 0;

7399

__attribute__((cleanup(cleanup_string)))

7400

char *mandos_argz = NULL;

7401

size_t mandos_argz_length = 0;

7402

7403

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7404

&helper_directory, &user, &group,

7405

&mandos_argz, &mandos_argz_length));

7406

7407

g_assert_null(helper_directory);

7408

g_assert_null(agent_directory);

7409

g_assert_cmpuint((unsigned int)user, ==, 1000);

7410

g_assert_true(group == 0);

7411

g_assert_null(mandos_argz);

7412

g_assert_true(mandos_argz_length == 0);

7413

7414

for(char **arg = argv; *arg != NULL; arg++){

7415

free(*arg);

7416

}

7417

}

7418

7419

static void test_parse_arguments_user_invalid(__attribute__((unused))

7420

test_fixture *fixture,

7421

__attribute__((unused))

7422

gconstpointer

7423

user_data){

7424

char *argv[] = {

7425

strdup("prgname"),

7426

strdup("--user"),

7427

strdup("invalid"),

7428

NULL };

7429

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7430

7431

char *agent_directory = NULL;

7432

__attribute__((cleanup(cleanup_string)))

7433

char *helper_directory = NULL;

7434

uid_t user = 0;

7435

gid_t group = 0;

7436

__attribute__((cleanup(cleanup_string)))

7437

char *mandos_argz = NULL;

7438

size_t mandos_argz_length = 0;

7439

7440

g_assert_false(parse_arguments_devnull(argc, argv, false,

7441

&agent_directory,

7442

&helper_directory, &user,

7443

&group, &mandos_argz,

7444

&mandos_argz_length));

7445

7446

g_assert_null(helper_directory);

7447

g_assert_null(agent_directory);

7448

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

7449

g_assert_true(group == 0);

7450

g_assert_null(mandos_argz);

7451

g_assert_true(mandos_argz_length == 0);

7452

7453

for(char **arg = argv; *arg != NULL; arg++){

7454

free(*arg);

7455

}

7456

}

7457

7458

static

7459

void test_parse_arguments_user_zero_invalid(__attribute__((unused))

7460

test_fixture *fixture,

7461

__attribute__((unused))

7462

gconstpointer user_data){

7463

char *argv[] = {

7464

strdup("prgname"),

7465

strdup("--user"),

7466

strdup("0"),

7467

NULL };

7468

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7469

7470

char *agent_directory = NULL;

7471

__attribute__((cleanup(cleanup_string)))

7472

char *helper_directory = NULL;

7473

uid_t user = 0;

7474

gid_t group = 0;

7475

__attribute__((cleanup(cleanup_string)))

7476

char *mandos_argz = NULL;

7477

size_t mandos_argz_length = 0;

7478

7479

g_assert_false(parse_arguments_devnull(argc, argv, false,

7480

&agent_directory,

7481

&helper_directory, &user,

7482

&group, &mandos_argz,

7483

&mandos_argz_length));

7484

7485

g_assert_null(helper_directory);

7486

g_assert_null(agent_directory);

7487

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

7488

g_assert_true(group == 0);

7489

g_assert_null(mandos_argz);

7490

g_assert_true(mandos_argz_length == 0);

7491

7492

for(char **arg = argv; *arg != NULL; arg++){

7493

free(*arg);

7494

}

7495

}

7496

7497

static void test_parse_arguments_group(__attribute__((unused))

7498

test_fixture *fixture,

7499

__attribute__((unused))

7500

gconstpointer user_data){

7501

char *argv[] = {

7502

strdup("prgname"),

7503

strdup("--group"),

7504

strdup("1000"),

7505

NULL };

7506

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7507

7508

char *agent_directory = NULL;

7509

__attribute__((cleanup(cleanup_string)))

7510

char *helper_directory = NULL;

7511

uid_t user = 0;

7512

gid_t group = 0;

7513

__attribute__((cleanup(cleanup_string)))

7514

char *mandos_argz = NULL;

7515

size_t mandos_argz_length = 0;

7516

7517

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7518

&helper_directory, &user, &group,

7519

&mandos_argz, &mandos_argz_length));

7520

7521

g_assert_null(helper_directory);

7522

g_assert_null(agent_directory);

7523

g_assert_true(user == 0);

7524

g_assert_cmpuint((unsigned int)group, ==, 1000);

7525

g_assert_null(mandos_argz);

7526

g_assert_true(mandos_argz_length == 0);

7527

7528

for(char **arg = argv; *arg != NULL; arg++){

7529

free(*arg);

7530

}

7531

}

7532

7533

static void test_parse_arguments_group_invalid(__attribute__((unused))

7534

test_fixture *fixture,

7535

__attribute__((unused))

7536

gconstpointer

7537

user_data){

7538

char *argv[] = {

7539

strdup("prgname"),

7540

strdup("--group"),

7541

strdup("invalid"),

7542

NULL };

7543

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7544

7545

char *agent_directory = NULL;

7546

__attribute__((cleanup(cleanup_string)))

7547

char *helper_directory = NULL;

7548

uid_t user = 0;

7549

gid_t group = 0;

7550

__attribute__((cleanup(cleanup_string)))

7551

char *mandos_argz = NULL;

7552

size_t mandos_argz_length = 0;

7553

7554

g_assert_false(parse_arguments_devnull(argc, argv, false,

7555

&agent_directory,

7556

&helper_directory, &user,

7557

&group, &mandos_argz,

7558

&mandos_argz_length));

7559

7560

g_assert_null(helper_directory);

7561

g_assert_null(agent_directory);

7562

g_assert_true(user == 0);

7563

g_assert_true(group == 0);

7564

g_assert_null(mandos_argz);

7565

g_assert_true(mandos_argz_length == 0);

7566

7567

for(char **arg = argv; *arg != NULL; arg++){

7568

free(*arg);

7569

}

7570

}

7571

7572

static

7573

void test_parse_arguments_group_zero_invalid(__attribute__((unused))

7574

test_fixture *fixture,

7575

__attribute__((unused))

7576

gconstpointer user_data){

7577

char *argv[] = {

7578

strdup("prgname"),

7579

strdup("--group"),

7580

strdup("0"),

7581

NULL };

7582

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7583

7584

char *agent_directory = NULL;

7585

__attribute__((cleanup(cleanup_string)))

7586

char *helper_directory = NULL;

7587

uid_t user = 0;

7588

gid_t group = 0;

7589

__attribute__((cleanup(cleanup_string)))

7590

char *mandos_argz = NULL;

7591

size_t mandos_argz_length = 0;

7592

7593

g_assert_false(parse_arguments_devnull(argc, argv, false,

7594

&agent_directory,

7595

&helper_directory, &user,

7596

&group, &mandos_argz,

7597

&mandos_argz_length));

7598

7599

g_assert_null(helper_directory);

7600

g_assert_null(agent_directory);

7601

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

7602

g_assert_true(group == 0);

7603

g_assert_null(mandos_argz);

7604

g_assert_true(mandos_argz_length == 0);

7605

7606

for(char **arg = argv; *arg != NULL; arg++){

7607

free(*arg);

7608

}

7609

}

7610

7611

static void test_parse_arguments_mandos_noargs(__attribute__((unused))

7612

test_fixture *fixture,

7613

__attribute__((unused))

7614

gconstpointer

7615

user_data){

7616

char *argv[] = {

7617

strdup("prgname"),

7618

strdup("mandos-client"),

7619

NULL };

7620

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7621

7622

__attribute__((cleanup(cleanup_string)))

7623

char *agent_directory = NULL;

7624

__attribute__((cleanup(cleanup_string)))

7625

char *helper_directory = NULL;

7626

uid_t user = 0;

7627

gid_t group = 0;

7628

__attribute__((cleanup(cleanup_string)))

7629

char *mandos_argz = NULL;

7630

size_t mandos_argz_length = 0;

7631

7632

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7633

&helper_directory, &user, &group,

7634

&mandos_argz, &mandos_argz_length));

7635

7636

g_assert_null(agent_directory);

7637

g_assert_null(helper_directory);

7638

g_assert_true(user == 0);

7639

g_assert_true(group == 0);

7640

g_assert_cmpstr(mandos_argz, ==, "mandos-client");

7641

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7642

mandos_argz_length),

7643

==, 1);

7644

7645

for(char **arg = argv; *arg != NULL; arg++){

7646

free(*arg);

7647

}

7648

}

7649

7650

static void test_parse_arguments_mandos_args(__attribute__((unused))

7651

test_fixture *fixture,

7652

__attribute__((unused))

7653

gconstpointer user_data){

7654

char *argv[] = {

7655

strdup("prgname"),

7656

strdup("mandos-client"),

7657

strdup("one"),

7658

strdup("two"),

7659

strdup("three"),

7660

NULL };

7661

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7662

7663

__attribute__((cleanup(cleanup_string)))

7664

char *agent_directory = NULL;

7665

__attribute__((cleanup(cleanup_string)))

7666

char *helper_directory = NULL;

7667

uid_t user = 0;

7668

gid_t group = 0;

7669

__attribute__((cleanup(cleanup_string)))

7670

char *mandos_argz = NULL;

7671

size_t mandos_argz_length = 0;

7672

7673

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7674

&helper_directory, &user, &group,

7675

&mandos_argz, &mandos_argz_length));

7676

7677

g_assert_null(agent_directory);

7678

g_assert_null(helper_directory);

7679

g_assert_true(user == 0);

7680

g_assert_true(group == 0);

7681

char *marg = mandos_argz;

7682

g_assert_cmpstr(marg, ==, "mandos-client");

7683

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7684

g_assert_cmpstr(marg, ==, "one");

7685

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7686

g_assert_cmpstr(marg, ==, "two");

7687

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7688

g_assert_cmpstr(marg, ==, "three");

7689

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7690

mandos_argz_length),

7691

==, 4);

7692

7693

for(char **arg = argv; *arg != NULL; arg++){

7694

free(*arg);

7695

}

7696

}

7697

7698

static void test_parse_arguments_all_args(__attribute__((unused))

7699

test_fixture *fixture,

7700

__attribute__((unused))

7701

gconstpointer user_data){

7702

char *argv[] = {

7703

strdup("prgname"),

7704

strdup("--agent-directory"),

7705

strdup("/tmp"),

7706

strdup("--helper-directory"),

7707

strdup("/var/tmp"),

7708

strdup("--user"),

7709

strdup("1"),

7710

strdup("--group"),

7711

strdup("2"),

7712

strdup("mandos-client"),

7713

strdup("one"),

7714

strdup("two"),

7715

strdup("three"),

7716

NULL };

7717

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7718

7719

__attribute__((cleanup(cleanup_string)))

7720

char *agent_directory = NULL;

7721

__attribute__((cleanup(cleanup_string)))

7722

char *helper_directory = NULL;

7723

uid_t user = 0;

7724

gid_t group = 0;

7725

__attribute__((cleanup(cleanup_string)))

7726

char *mandos_argz = NULL;

7727

size_t mandos_argz_length = 0;

7728

7729

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7730

&helper_directory, &user, &group,

7731

&mandos_argz, &mandos_argz_length));

7732

7733

g_assert_cmpstr(agent_directory, ==, "/tmp");

7734

g_assert_cmpstr(helper_directory, ==, "/var/tmp");

7735

g_assert_true(user == 1);

7736

g_assert_true(group == 2);

7737

char *marg = mandos_argz;

7738

g_assert_cmpstr(marg, ==, "mandos-client");

7739

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7740

g_assert_cmpstr(marg, ==, "one");

7741

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7742

g_assert_cmpstr(marg, ==, "two");

7743

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7744

g_assert_cmpstr(marg, ==, "three");

7745

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7746

mandos_argz_length),

7747

==, 4);

7748

7749

for(char **arg = argv; *arg != NULL; arg++){

7750

free(*arg);

7751

}

7752

}

7753

7754

static void test_parse_arguments_mixed(__attribute__((unused))

7755

test_fixture *fixture,

7756

__attribute__((unused))

7757

gconstpointer user_data){

7758

char *argv[] = {

7759

strdup("prgname"),

7760

strdup("mandos-client"),

7761

strdup("--user"),

7762

strdup("1"),

7763

strdup("one"),

7764

strdup("--agent-directory"),

7765

strdup("/tmp"),

7766

strdup("two"),

7767

strdup("three"),

7768

strdup("--helper-directory=/var/tmp"),

7769

NULL };

7770

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7771

7772

__attribute__((cleanup(cleanup_string)))

7773

char *agent_directory = NULL;

7774

__attribute__((cleanup(cleanup_string)))

7775

char *helper_directory = NULL;

7776

uid_t user = 0;

7777

gid_t group = 0;

7778

__attribute__((cleanup(cleanup_string)))

7779

char *mandos_argz = NULL;

7780

size_t mandos_argz_length = 0;

7781

7782

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7783

&helper_directory, &user, &group,

7784

&mandos_argz, &mandos_argz_length));

7785

7786

g_assert_cmpstr(agent_directory, ==, "/tmp");

7787

g_assert_cmpstr(helper_directory, ==, "/var/tmp");

7788

g_assert_true(user == 1);

7789

g_assert_true(group == 0);

7790

char *marg = mandos_argz;

7791

g_assert_cmpstr(marg, ==, "mandos-client");

7792

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7793

g_assert_cmpstr(marg, ==, "one");

7794

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7795

g_assert_cmpstr(marg, ==, "two");

7796

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7797

g_assert_cmpstr(marg, ==, "three");

7798

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7799

mandos_argz_length),

7800

==, 4);

7801

7802

for(char **arg = argv; *arg != NULL; arg++){

7803

free(*arg);

7804

}

7805

}

7806

7807

/* End of tests section */

7808

7809

/* Test boilerplate section; New tests should be added to the test

7810

suite definition here, in the "run_tests" function.

7811

7812

Finally, this section also contains the should_only_run_tests()

7813

function used by main() for deciding if tests should be run or to

7814

start normally. */

7815

7816

__attribute__((cold))

7817

static bool run_tests(int argc, char *argv[]){

7818

g_test_init(&argc, &argv, NULL);

7819

7820

/* A macro to add a test with no setup or teardown functions */

7821

#define test_add(testpath, testfunc) \

7822

do { \

7823

g_test_add((testpath), test_fixture, NULL, NULL, \

7824

(testfunc), NULL); \

7825

} while(false)

7826

7827

/* Test the signal-related functions first, since some other tests

7828

depend on these functions in their setups and teardowns */

7829

test_add("/signal-handling/setup", test_setup_signal_handler);

7830

test_add("/signal-handling/restore", test_restore_signal_handler);

7831

test_add("/signal-handling/block", test_block_sigchld);

7832

test_add("/signal-handling/restore-sigmask", test_restore_sigmask);

7833

7834

/* Regular non-signal-related tests; these use no setups or

7835

teardowns */

7836

test_add("/parse_arguments/noargs", test_parse_arguments_noargs);

7837

test_add("/parse_arguments/invalid", test_parse_arguments_invalid);

7838

test_add("/parse_arguments/long-dir",

7839

test_parse_arguments_long_dir);

7840

test_add("/parse_arguments/short-dir",

7841

test_parse_arguments_short_dir);

7842

test_add("/parse_arguments/helper-directory",

7843

test_parse_arguments_helper_directory);

7844

test_add("/parse_arguments/plugin-helper-dir",

7845

test_parse_arguments_plugin_helper_dir);

7846

test_add("/parse_arguments/user", test_parse_arguments_user);

7847

test_add("/parse_arguments/user-invalid",

7848

test_parse_arguments_user_invalid);

7849

test_add("/parse_arguments/user-zero-invalid",

7850

test_parse_arguments_user_zero_invalid);

7851

test_add("/parse_arguments/group", test_parse_arguments_group);

7852

test_add("/parse_arguments/group-invalid",

7853

test_parse_arguments_group_invalid);

7854

test_add("/parse_arguments/group-zero-invalid",

7855

test_parse_arguments_group_zero_invalid);

7856

test_add("/parse_arguments/mandos-noargs",

7857

test_parse_arguments_mandos_noargs);

7858

test_add("/parse_arguments/mandos-args",

7859

test_parse_arguments_mandos_args);

7860

test_add("/parse_arguments/all-args",

7861

test_parse_arguments_all_args);

7862

test_add("/parse_arguments/mixed", test_parse_arguments_mixed);

7863

test_add("/queue/create", test_create_queue);

7864

test_add("/queue/add", test_add_to_queue);

7865

test_add("/queue/has_question/empty",

7866

test_queue_has_question_empty);

7867

test_add("/queue/has_question/false",

7868

test_queue_has_question_false);

7869

test_add("/queue/has_question/true", test_queue_has_question_true);

7870

test_add("/queue/has_question/false2",

7871

test_queue_has_question_false2);

7872

test_add("/queue/has_question/true2",

7873

test_queue_has_question_true2);

7874

test_add("/buffer/cleanup", test_cleanup_buffer);

7875

test_add("/string_set/net-set-contains-nothing",

7876

test_string_set_new_set_contains_nothing);

7877

test_add("/string_set/with-added-string-contains-it",

7878

test_string_set_with_added_string_contains_it);

7879

test_add("/string_set/cleared-does-not-contain-string",

7880

test_string_set_cleared_does_not_contain_str);

7881

test_add("/string_set/swap/one-with-empty",

7882

test_string_set_swap_one_with_empty);

7883

test_add("/string_set/swap/empty-with-one",

7884

test_string_set_swap_empty_with_one);

7885

test_add("/string_set/swap/one-with-one",

7886

test_string_set_swap_one_with_one);

7887

7888

/* A macro to add a test using the setup and teardown functions */

7889

#define test_add_st(path, func) \

7890

do { \

7891

g_test_add((path), test_fixture, NULL, test_setup, (func), \

7892

test_teardown); \

7893

} while(false)

7894

7895

/* Signal-related tests; these use setups and teardowns which

7896

establish, during each test run, a signal handler for, and a

7897

signal mask blocking, the SIGCHLD signal, just like main() */

7898

test_add_st("/wait_for_event/timeout", test_wait_for_event_timeout);

7899

test_add_st("/wait_for_event/event", test_wait_for_event_event);

7900

test_add_st("/wait_for_event/sigchld", test_wait_for_event_sigchld);

7901

test_add_st("/run_queue/zeroes-next-run",

7902

test_run_queue_zeroes_next_run);

7903

test_add_st("/run_queue/clears-cancelled_filenames",

7904

test_run_queue_clears_cancelled_filenames);

7905

test_add_st("/run_queue/skips-cancelled-filenames",

7906

test_run_queue_skips_cancelled_filenames);

7907

test_add_st("/run_queue/one-task", test_run_queue_one_task);

7908

test_add_st("/run_queue/two-tasks", test_run_queue_two_tasks);

7909

test_add_st("/run_queue/two-tasks/quit",

7910

test_run_queue_two_tasks_quit);

7911

test_add_st("/run_queue/two-tasks-cleanup",

7912

test_run_queue_two_tasks_cleanup);

7913

test_add_st("/task-creators/start_mandos_client",

7914

test_start_mandos_client);

7915

test_add_st("/task-creators/start_mandos_client/execv",

7916

test_start_mandos_client_execv);

7917

test_add_st("/task-creators/start_mandos_client/suid/euid",

7918

test_start_mandos_client_suid_euid);

7919

test_add_st("/task-creators/start_mandos_client/suid/egid",

7920

test_start_mandos_client_suid_egid);

7921

test_add_st("/task-creators/start_mandos_client/suid/ruid",

7922

test_start_mandos_client_suid_ruid);

7923

test_add_st("/task-creators/start_mandos_client/suid/rgid",

7924

test_start_mandos_client_suid_rgid);

7925

test_add_st("/task-creators/start_mandos_client/read",

7926

test_start_mandos_client_read);

7927

test_add_st("/task-creators/start_mandos_client/helper-directory",

7928

test_start_mandos_client_helper_directory);

7929

test_add_st("/task-creators/start_mandos_client/sigmask",

7930

test_start_mandos_client_sigmask);

7931

test_add_st("/task/wait_for_mandos_client_exit/badpid",

7932

test_wait_for_mandos_client_exit_badpid);

7933

test_add_st("/task/wait_for_mandos_client_exit/noexit",

7934

test_wait_for_mandos_client_exit_noexit);

7935

test_add_st("/task/wait_for_mandos_client_exit/success",

7936

test_wait_for_mandos_client_exit_success);

7937

test_add_st("/task/wait_for_mandos_client_exit/failure",

7938

test_wait_for_mandos_client_exit_failure);

7939

test_add_st("/task/wait_for_mandos_client_exit/killed",

7940

test_wait_for_mandos_client_exit_killed);

7941

test_add_st("/task/read_mandos_client_output/readerror",

7942

test_read_mandos_client_output_readerror);

7943

test_add_st("/task/read_mandos_client_output/nodata",

7944

test_read_mandos_client_output_nodata);

7945

test_add_st("/task/read_mandos_client_output/eof",

7946

test_read_mandos_client_output_eof);

7947

test_add_st("/task/read_mandos_client_output/once",

7948

test_read_mandos_client_output_once);

7949

test_add_st("/task/read_mandos_client_output/malloc",

7950

test_read_mandos_client_output_malloc);

7951

test_add_st("/task/read_mandos_client_output/append",

7952

test_read_mandos_client_output_append);

7953

test_add_st("/task-creators/add_inotify_dir_watch",

7954

test_add_inotify_dir_watch);

7955

test_add_st("/task-creators/add_inotify_dir_watch/fail",

7956

test_add_inotify_dir_watch_fail);

7957

test_add_st("/task-creators/add_inotify_dir_watch/not-a-directory",

7958

test_add_inotify_dir_watch_nondir);

7959

test_add_st("/task-creators/add_inotify_dir_watch/EAGAIN",

7960

test_add_inotify_dir_watch_EAGAIN);

7961

test_add_st("/task-creators/add_inotify_dir_watch/IN_CLOSE_WRITE",

7962

test_add_inotify_dir_watch_IN_CLOSE_WRITE);

7963

test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_TO",

7964

test_add_inotify_dir_watch_IN_MOVED_TO);

7965

test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_FROM",

7966

test_add_inotify_dir_watch_IN_MOVED_FROM);

7967

test_add_st("/task-creators/add_inotify_dir_watch/IN_EXCL_UNLINK",

7968

test_add_inotify_dir_watch_IN_EXCL_UNLINK);

7969

test_add_st("/task-creators/add_inotify_dir_watch/IN_DELETE",

7970

test_add_inotify_dir_watch_IN_DELETE);

7971

test_add_st("/task/read_inotify_event/readerror",

7972

test_read_inotify_event_readerror);

7973

test_add_st("/task/read_inotify_event/bad-epoll",

7974

test_read_inotify_event_bad_epoll);

7975

test_add_st("/task/read_inotify_event/nodata",

7976

test_read_inotify_event_nodata);

7977

test_add_st("/task/read_inotify_event/eof",

7978

test_read_inotify_event_eof);

7979

test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE",

7980

test_read_inotify_event_IN_CLOSE_WRITE);

7981

test_add_st("/task/read_inotify_event/IN_MOVED_TO",

7982

test_read_inotify_event_IN_MOVED_TO);

7983

test_add_st("/task/read_inotify_event/IN_MOVED_FROM",

7984

test_read_inotify_event_IN_MOVED_FROM);

7985

test_add_st("/task/read_inotify_event/IN_DELETE",

7986

test_read_inotify_event_IN_DELETE);

7987

test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE/badname",

7988

test_read_inotify_event_IN_CLOSE_WRITE_badname);

7989

test_add_st("/task/read_inotify_event/IN_MOVED_TO/badname",

7990

test_read_inotify_event_IN_MOVED_TO_badname);

7991

test_add_st("/task/read_inotify_event/IN_MOVED_FROM/badname",

7992

test_read_inotify_event_IN_MOVED_FROM_badname);

7993

test_add_st("/task/read_inotify_event/IN_DELETE/badname",

7994

test_read_inotify_event_IN_DELETE_badname);

7995

test_add_st("/task/open_and_parse_question/ENOENT",

7996

test_open_and_parse_question_ENOENT);

7997

test_add_st("/task/open_and_parse_question/EIO",

7998

test_open_and_parse_question_EIO);

7999

test_add_st("/task/open_and_parse_question/parse-error",

8000

test_open_and_parse_question_parse_error);

8001

test_add_st("/task/open_and_parse_question/nosocket",

8002

test_open_and_parse_question_nosocket);

8003

test_add_st("/task/open_and_parse_question/badsocket",

8004

test_open_and_parse_question_badsocket);

8005

test_add_st("/task/open_and_parse_question/nopid",

8006

test_open_and_parse_question_nopid);

8007

test_add_st("/task/open_and_parse_question/badpid",

8008

test_open_and_parse_question_badpid);

8009

test_add_st("/task/open_and_parse_question/noexist_pid",

8010

test_open_and_parse_question_noexist_pid);

8011

test_add_st("/task/open_and_parse_question/no-notafter",

8012

test_open_and_parse_question_no_notafter);

8013

test_add_st("/task/open_and_parse_question/bad-notafter",

8014

test_open_and_parse_question_bad_notafter);

8015

test_add_st("/task/open_and_parse_question/notafter-0",

8016

test_open_and_parse_question_notafter_0);

8017

test_add_st("/task/open_and_parse_question/notafter-1",

8018

test_open_and_parse_question_notafter_1);

8019

test_add_st("/task/open_and_parse_question/notafter-1-1",

8020

test_open_and_parse_question_notafter_1_1);

8021

test_add_st("/task/open_and_parse_question/notafter-1-2",

8022

test_open_and_parse_question_notafter_1_2);

8023

test_add_st("/task/open_and_parse_question/equal-notafter",

8024

test_open_and_parse_question_equal_notafter);

8025

test_add_st("/task/open_and_parse_question/late-notafter",

8026

test_open_and_parse_question_late_notafter);

8027

test_add_st("/task/cancel_old_question/0-1-2",

8028

test_cancel_old_question_0_1_2);

8029

test_add_st("/task/cancel_old_question/0-2-1",

8030

test_cancel_old_question_0_2_1);

8031

test_add_st("/task/cancel_old_question/1-2-3",

8032

test_cancel_old_question_1_2_3);

8033

test_add_st("/task/cancel_old_question/1-3-2",

8034

test_cancel_old_question_1_3_2);

8035

test_add_st("/task/cancel_old_question/2-1-3",

8036

test_cancel_old_question_2_1_3);

8037

test_add_st("/task/cancel_old_question/2-3-1",

8038

test_cancel_old_question_2_3_1);

8039

test_add_st("/task/cancel_old_question/3-1-2",

8040

test_cancel_old_question_3_1_2);

8041

test_add_st("/task/cancel_old_question/3-2-1",

8042

test_cancel_old_question_3_2_1);

8043

test_add_st("/task/connect_question_socket/name-too-long",

8044

test_connect_question_socket_name_too_long);

8045

test_add_st("/task/connect_question_socket/connect-fail",

8046

test_connect_question_socket_connect_fail);

8047

test_add_st("/task/connect_question_socket/bad-epoll",

8048

test_connect_question_socket_bad_epoll);

8049

test_add_st("/task/connect_question_socket/usable",

8050

test_connect_question_socket_usable);

8051

test_add_st("/task/send_password_to_socket/client-not-exited",

8052

test_send_password_to_socket_client_not_exited);

8053

test_add_st("/task/send_password_to_socket/password-not-read",

8054

test_send_password_to_socket_password_not_read);

8055

test_add_st("/task/send_password_to_socket/EMSGSIZE",

8056

test_send_password_to_socket_EMSGSIZE);

8057

test_add_st("/task/send_password_to_socket/retry",

8058

test_send_password_to_socket_retry);

8059

test_add_st("/task/send_password_to_socket/bad-epoll",

8060

test_send_password_to_socket_bad_epoll);

8061

test_add_st("/task/send_password_to_socket/null-password",

8062

test_send_password_to_socket_null_password);

8063

test_add_st("/task/send_password_to_socket/empty-password",

8064

test_send_password_to_socket_empty_password);

8065

test_add_st("/task/send_password_to_socket/empty-str-password",

8066

test_send_password_to_socket_empty_str_pass);

8067

test_add_st("/task/send_password_to_socket/text-password",

8068

test_send_password_to_socket_text_password);

8069

test_add_st("/task/send_password_to_socket/binary-password",

8070

test_send_password_to_socket_binary_password);

8071

test_add_st("/task/send_password_to_socket/nuls-in-password",

8072

test_send_password_to_socket_nuls_in_password);

8073

test_add_st("/task-creators/add_existing_questions/ENOENT",

8074

test_add_existing_questions_ENOENT);

8075

test_add_st("/task-creators/add_existing_questions/no-questions",

8076

test_add_existing_questions_no_questions);

8077

test_add_st("/task-creators/add_existing_questions/one-question",

8078

test_add_existing_questions_one_question);

8079

test_add_st("/task-creators/add_existing_questions/two-questions",

8080

test_add_existing_questions_two_questions);

8081

test_add_st("/task-creators/add_existing_questions/non-questions",

8082

test_add_existing_questions_non_questions);

8083

test_add_st("/task-creators/add_existing_questions/both-types",

8084

test_add_existing_questions_both_types);

8085

8086

return g_test_run() == 0;

8087

}

8088

8089

static bool should_only_run_tests(int *argc_p, char **argv_p[]){

8090

GOptionContext *context = g_option_context_new("");

8091

8092

g_option_context_set_help_enabled(context, FALSE);

8093

g_option_context_set_ignore_unknown_options(context, TRUE);

8094

8095

gboolean run_tests = FALSE;

8096

GOptionEntry entries[] = {

8097

{ "test", 0, 0, G_OPTION_ARG_NONE,

8098

&run_tests, "Run tests", NULL },

8099

{ NULL }

8100

};

8101

g_option_context_add_main_entries(context, entries, NULL);

8102

8103

GError *error = NULL;

8104

8105

if(g_option_context_parse(context, argc_p, argv_p, &error) != TRUE){

8106

g_option_context_free(context);

8107

g_error("Failed to parse options: %s", error->message);

8108

}

8109

8110

g_option_context_free(context);

8111

return run_tests != FALSE;

8112

}