/mandos/trunk : revision 223

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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, EEXIST,

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ECHILD, EPERM, ENOMEM, EAGAIN,

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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 */

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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_DELETE, 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;

254

__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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288

/* 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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292

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 */

300

}

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

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}

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304

__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";

327

const char default_helper_directory[]

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

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const char *const default_argv[]

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

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/* Set variables to default values if unset */

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if(agent_directory == NULL){

334

agent_directory = strdup(default_agent_directory);

335

if(agent_directory == NULL){

336

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

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}

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}

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if(helper_directory == NULL){

340

helper_directory = strdup(default_helper_directory);

341

if(helper_directory == NULL){

342

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

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}

344

}

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if(user == 0){

346

user = 65534; /* nobody */

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}

348

if(group == 0){

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group = 65534; /* nogroup */

350

}

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

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default values */

353

if(mandos_argz == NULL){

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#ifdef __GNUC__

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#pragma GCC diagnostic push

356

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

357

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

358

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

359

#pragma GCC diagnostic ignored "-Wcast-qual"

360

#endif

361

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

362

&mandos_argz_length);

363

#ifdef __GNUC__

364

#pragma GCC diagnostic pop

365

#endif

366

if(errno != 0){

367

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

368

}

369

}

370

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

371

372

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

373

mandos_argz_length)

374

+ 1) * sizeof(char *));

375

if(mandos_argv == NULL){

376

error_t saved_errno = errno;

377

free(mandos_argz);

378

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

379

}

380

argz_extract(mandos_argz, mandos_argz_length, mandos_argv);

381

382

sigset_t orig_sigmask;

383

if(not block_sigchld(&orig_sigmask)){

384

return EX_OSERR;

385

}

386

387

struct sigaction old_sigchld_action;

388

if(not setup_signal_handler(&old_sigchld_action)){

389

return EX_OSERR;

390

}

391

392

mono_microsecs current_time = 0;

393

394

bool mandos_client_exited = false;

395

bool quit_now = false;

396

__attribute__((cleanup(cleanup_close)))

397

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

398

if(epoll_fd < 0){

399

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

400

}

401

__attribute__((cleanup(cleanup_queue)))

402

task_queue *queue = create_queue();

403

if(queue == NULL){

404

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

405

}

406

407

__attribute__((cleanup(cleanup_buffer)))

408

buffer password = {};

409

bool password_is_read = false;

410

411

__attribute__((cleanup(string_set_clear)))

412

string_set cancelled_filenames = {};

413

414

/* Add tasks to queue */

415

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

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&quit_now, &password, &password_is_read,

417

&old_sigchld_action, orig_sigmask,

418

helper_directory, user, group,

419

(const char *const *)mandos_argv)){

420

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

421

}

422

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

423

needed anymore */

424

free(mandos_argv);

425

free(mandos_argz);

426

mandos_argz = NULL;

427

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

428

agent_directory, &cancelled_filenames,

429

&current_time, &mandos_client_exited,

430

&password_is_read)){

431

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

432

case EACCES:

433

case ENAMETOOLONG:

434

case ENOENT:

435

case ENOTDIR:

436

return EX_OSFILE;

437

default:

438

return EX_OSERR;

439

}

440

}

441

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

442

&cancelled_filenames, &current_time,

443

&mandos_client_exited,

444

&password_is_read, agent_directory)){

445

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

446

}

447

448

/* Run queue */

449

do {

450

current_time = get_current_time();

451

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

452

const error_t saved_errno = errno;

453

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

454

" events");

455

}

456

457

current_time = get_current_time();

458

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

459

const error_t saved_errno = errno;

460

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

461

}

462

463

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

464

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

465

} while(queue_has_question(queue));

466

467

restore_signal_handler(&old_sigchld_action);

468

restore_sigmask(&orig_sigmask);

469

470

return EXIT_SUCCESS;

471

}

472

473

__attribute__((warn_unused_result))

474

mono_microsecs get_current_time(void){

475

struct timespec currtime;

476

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

477

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

478

return 0;

479

}

480

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

481

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

482

}

483

484

/* End of "main" section */

485

486

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

487

488

__attribute__((nonnull))

489

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

490

char **agent_directory, char **helper_directory,

491

uid_t *const user, gid_t *const group,

492

char **mandos_argz, size_t *mandos_argz_length){

493

494

const struct argp_option options[] = {

495

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

496

.doc="Systemd password agent directory" },

497

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

498

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

499

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

500

.flags=OPTION_HIDDEN | OPTION_ALIAS },

501

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

502

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

503

" user" },

504

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

505

.flags=OPTION_HIDDEN | OPTION_ALIAS },

506

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

507

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

508

" group" },

509

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

510

.flags=OPTION_HIDDEN | OPTION_ALIAS },

511

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

512

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

513

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

514

{ NULL },

515

};

516

517

__attribute__((nonnull(3)))

518

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

519

errno = 0;

520

switch(key){

521

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

522

*agent_directory = strdup(arg);

523

break;

524

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

525

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

526

*helper_directory = strdup(arg);

527

break;

528

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

529

case 130: /* --userid */

530

{

531

char *tmp;

532

uintmax_t tmp_id = 0;

533

errno = 0;

534

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

535

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

536

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

537

return ARGP_ERR_UNKNOWN;

538

}

539

*user = (uid_t)tmp_id;

540

errno = 0;

541

break;

542

}

543

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

544

case 131: /* --groupid */

545

{

546

char *tmp;

547

uintmax_t tmp_id = 0;

548

errno = 0;

549

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

550

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

551

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

552

return ARGP_ERR_UNKNOWN;

553

}

554

*group = (gid_t)tmp_id;

555

errno = 0;

556

break;

557

}

558

case ARGP_KEY_ARGS:

559

/* Copy arguments into argz vector */

560

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

561

mandos_argz_length);

562

default:

563

return ARGP_ERR_UNKNOWN;

564

}

565

return errno;

566

}

567

568

const struct argp argp = {

569

.options=options,

570

.parser=parse_opt,

571

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

572

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

573

" systemd password agent",

574

};

575

576

errno = argp_parse(&argp, argc, argv,

577

exit_failure ? 0 : ARGP_NO_EXIT, NULL, NULL);

578

579

return errno == 0;

580

}

581

582

__attribute__((nonnull, warn_unused_result))

583

bool block_sigchld(sigset_t *const orig_sigmask){

584

sigset_t sigchld_sigmask;

585

if(sigemptyset(&sigchld_sigmask) < 0){

586

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

587

return false;

588

}

589

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

590

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

591

return false;

592

}

593

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

594

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

595

return false;

596

}

597

return true;

598

}

599

600

__attribute__((nonnull, warn_unused_result, const))

601

bool restore_sigmask(const sigset_t *const orig_sigmask){

602

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

603

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

604

return false;

605

}

606

return true;

607

}

608

609

__attribute__((nonnull, warn_unused_result))

610

bool setup_signal_handler(struct sigaction *const old_sigchld_action){

611

struct sigaction sigchld_action = {

612

.sa_handler=handle_sigchld,

613

.sa_flags=SA_RESTART | SA_NOCLDSTOP,

614

};

615

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

616

signals automatically blocked during signal handler */

617

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

618

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

619

return false;

620

}

621

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

622

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

623

return false;

624

}

625

return true;

626

}

627

628

__attribute__((nonnull, warn_unused_result))

629

bool restore_signal_handler(const struct sigaction *const

630

old_sigchld_action){

631

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

632

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

633

return false;

634

}

635

return true;

636

}

637

638

__attribute__((warn_unused_result, malloc))

639

task_queue *create_queue(void){

640

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

641

if(queue){

642

queue->tasks = NULL;

643

queue->length = 0;

644

queue->allocated = 0;

645

queue->next_run = 0;

646

}

647

return queue;

648

}

649

650

__attribute__((nonnull, warn_unused_result))

651

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

652

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

653

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

654

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

655

needed_size);

656

if(new_tasks == NULL){

657

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

658

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

659

return false;

660

}

661

queue->tasks = new_tasks;

662

queue->allocated = needed_size;

663

}

664

/* Using memcpy here is necessary because doing */

665

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

666

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

667

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

668

sizeof(task_context));

669

return true;

670

}

671

672

__attribute__((nonnull))

673

void cleanup_task(const task_context *const task){

674

const error_t saved_errno = errno;

675

/* free and close all task data */

676

free(task->question_filename);

677

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

678

free(task->filename);

679

}

680

if(task->pid > 0){

681

kill(task->pid, SIGTERM);

682

}

683

if(task->fd > 0){

684

close(task->fd);

685

}

686

errno = saved_errno;

687

}

688

689

__attribute__((nonnull))

690

void free_queue(task_queue *const queue){

691

free(queue->tasks);

692

free(queue);

693

}

694

695

__attribute__((nonnull))

696

void cleanup_queue(task_queue *const *const queue){

697

if(*queue == NULL){

698

return;

699

}

700

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

701

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

702

cleanup_task(task);

703

}

704

free_queue(*queue);

705

}

706

707

__attribute__((pure, nonnull, warn_unused_result))

708

bool queue_has_question(const task_queue *const queue){

709

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

710

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

711

return true;

712

}

713

}

714

return false;

715

}

716

717

__attribute__((nonnull))

718

void cleanup_close(const int *const fd){

719

const error_t saved_errno = errno;

720

close(*fd);

721

errno = saved_errno;

722

}

723

724

__attribute__((nonnull))

725

void cleanup_string(char *const *const ptr){

726

free(*ptr);

727

}

728

729

__attribute__((nonnull))

730

void cleanup_buffer(buffer *buf){

731

if(buf->allocated > 0){

732

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

733

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

734

#else

735

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

736

#endif

737

}

738

if(buf->data != NULL){

739

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

740

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

741

}

742

free(buf->data);

743

buf->data = NULL;

744

}

745

buf->length = 0;

746

buf->allocated = 0;

747

}

748

749

__attribute__((pure, nonnull, warn_unused_result))

750

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

751

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

752

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

753

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

754

return true;

755

}

756

}

757

return false;

758

}

759

760

__attribute__((nonnull, warn_unused_result))

761

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

762

if(string_set_contains(*set, str)){

763

return true;

764

}

765

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

766

if(error == 0){

767

return true;

768

}

769

errno = error;

770

return false;

771

}

772

773

__attribute__((nonnull))

774

void string_set_clear(string_set *set){

775

free(set->argz);

776

set->argz = NULL;

777

set->argz_len = 0;

778

}

779

780

__attribute__((nonnull))

781

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

782

/* Swap contents of two string sets */

783

{

784

char *const tmp_argz = set1->argz;

785

set1->argz = set2->argz;

786

set2->argz = tmp_argz;

787

}

788

{

789

const size_t tmp_argz_len = set1->argz_len;

790

set1->argz_len = set2->argz_len;

791

set2->argz_len = tmp_argz_len;

792

}

793

}

794

795

__attribute__((nonnull, warn_unused_result))

796

bool start_mandos_client(task_queue *const queue,

797

const int epoll_fd,

798

bool *const mandos_client_exited,

799

bool *const quit_now, buffer *const password,

800

bool *const password_is_read,

801

const struct sigaction *const

802

old_sigchld_action, const sigset_t sigmask,

803

const char *const helper_directory,

804

const uid_t user, const gid_t group,

805

const char *const *const argv){

806

int pipefds[2];

807

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

808

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

809

return false;

810

}

811

812

const pid_t pid = fork();

813

if(pid == 0){

814

if(not restore_signal_handler(old_sigchld_action)){

815

_exit(EXIT_FAILURE);

816

}

817

if(not restore_sigmask(&sigmask)){

818

_exit(EXIT_FAILURE);

819

}

820

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

821

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

822

_exit(EXIT_FAILURE);

823

}

824

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

825

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

826

_exit(EXIT_FAILURE);

827

}

828

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

829

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

830

_exit(EXIT_FAILURE);

831

}

832

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

833

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

834

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

835

_exit(EXIT_FAILURE);

836

}

837

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

838

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

839

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

840

_exit(EXIT_FAILURE);

841

}

842

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

843

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

844

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

845

_exit(EXIT_FAILURE);

846

}

847

#ifdef __GNUC__

848

#pragma GCC diagnostic push

849

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

850

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

851

#pragma GCC diagnostic ignored "-Wcast-qual"

852

#endif

853

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

854

#ifdef __GNUC__

855

#pragma GCC diagnostic pop

856

#endif

857

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

858

_exit(EXIT_FAILURE);

859

}

860

close(pipefds[1]);

861

862

if(not add_to_queue(queue, (task_context){

863

.func=wait_for_mandos_client_exit,

864

.pid=pid,

865

.mandos_client_exited=mandos_client_exited,

866

.quit_now=quit_now,

867

})){

868

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

869

close(pipefds[0]);

870

return false;

871

}

872

873

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

874

&(struct epoll_event)

875

{ .events=EPOLLIN | EPOLLRDHUP });

876

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

877

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

878

close(pipefds[0]);

879

return false;

880

}

881

882

return add_to_queue(queue, (task_context){

883

.func=read_mandos_client_output,

884

.epoll_fd=epoll_fd,

885

.fd=pipefds[0],

886

.quit_now=quit_now,

887

.password=password,

888

.password_is_read=password_is_read,

889

});

890

}

891

892

__attribute__((nonnull))

893

void wait_for_mandos_client_exit(const task_context task,

894

task_queue *const queue){

895

const pid_t pid = task.pid;

896

bool *const mandos_client_exited = task.mandos_client_exited;

897

bool *const quit_now = task.quit_now;

898

899

int status;

900

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

901

case 0: /* Not exited yet */

902

if(not add_to_queue(queue, task)){

903

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

904

*quit_now = true;

905

}

906

break;

907

case -1: /* Error */

908

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

909

if(errno != ECHILD){

910

kill(pid, SIGTERM);

911

}

912

*quit_now = true;

913

break;

914

default: /* Has exited */

915

*mandos_client_exited = true;

916

if((not WIFEXITED(status))

917

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

918

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

919

*quit_now = true;

920

}

921

}

922

}

923

924

__attribute__((nonnull))

925

void read_mandos_client_output(const task_context task,

926

task_queue *const queue){

927

buffer *const password = task.password;

928

bool *const quit_now = task.quit_now;

929

bool *const password_is_read = task.password_is_read;

930

const int fd = task.fd;

931

const int epoll_fd = task.epoll_fd;

932

933

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

934

if(password->allocated < new_potential_size){

935

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

936

if(new_buffer == NULL){

937

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

938

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

939

*quit_now = true;

940

close(fd);

941

return;

942

}

943

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

944

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

945

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

946

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

947

}

948

}

949

if(password->length > 0){

950

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

951

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

952

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

953

#else

954

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

955

#endif

956

}

957

if(password->data != NULL){

958

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

959

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

960

}

961

free(password->data);

962

}

963

password->data = new_buffer;

964

password->allocated = new_potential_size;

965

}

966

967

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

968

+ password->length, PIPE_BUF);

969

970

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

971

*password_is_read = true;

972

close(fd);

973

return;

974

}

975

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

976

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

977

*quit_now = true;

978

close(fd);

979

return;

980

}

981

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

982

password->length += (size_t)read_length;

983

}

984

985

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

986

available yet */

987

988

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

989

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

990

&(struct epoll_event)

991

{ .events=EPOLLIN | EPOLLRDHUP });

992

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

993

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

994

*quit_now = true;

995

close(fd);

996

return;

997

}

998

999

/* Re-add myself to the queue */

1000

if(not add_to_queue(queue, task)){

1001

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

1002

*quit_now = true;

1003

close(fd);

1004

}

1005

}

1006

1007

__attribute__((nonnull, warn_unused_result))

1008

bool add_inotify_dir_watch(task_queue *const queue,

1009

const int epoll_fd, bool *const quit_now,

1010

buffer *const password,

1011

const char *const dir,

1012

string_set *cancelled_filenames,

1013

const mono_microsecs *const current_time,

1014

bool *const mandos_client_exited,

1015

bool *const password_is_read){

1016

const int fd = inotify_init1(IN_NONBLOCK | IN_CLOEXEC);

1017

if(fd == -1){

1018

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

1019

return false;

1020

}

1021

1022

if(inotify_add_watch(fd, dir, IN_CLOSE_WRITE | IN_MOVED_TO

1023

| IN_MOVED_FROM| IN_DELETE | IN_EXCL_UNLINK

1024

| IN_ONLYDIR)

1025

== -1){

1026

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

1027

return false;

1028

}

1029

1030

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

1031

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

1032

&(struct epoll_event)

1033

{ .events=EPOLLIN | EPOLLRDHUP });

1034

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

1035

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

1036

close(fd);

1037

return false;

1038

}

1039

1040

const task_context read_inotify_event_task = {

1041

.func=read_inotify_event,

1042

.epoll_fd=epoll_fd,

1043

.quit_now=quit_now,

1044

.password=password,

1045

.fd=fd,

1046

.filename=strdup(dir),

1047

.cancelled_filenames=cancelled_filenames,

1048

.current_time=current_time,

1049

.mandos_client_exited=mandos_client_exited,

1050

.password_is_read=password_is_read,

1051

};

1052

if(read_inotify_event_task.filename == NULL){

1053

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

1054

close(fd);

1055

return false;

1056

}

1057

1058

return add_to_queue(queue, read_inotify_event_task);

1059

}

1060

1061

__attribute__((nonnull))

1062

void read_inotify_event(const task_context task,

1063

task_queue *const queue){

1064

const int fd = task.fd;

1065

const int epoll_fd = task.epoll_fd;

1066

char *const filename = task.filename;

1067

bool *quit_now = task.quit_now;

1068

buffer *const password = task.password;

1069

string_set *const cancelled_filenames = task.cancelled_filenames;

1070

const mono_microsecs *const current_time = task.current_time;

1071

bool *const mandos_client_exited = task.mandos_client_exited;

1072

bool *const password_is_read = task.password_is_read;

1073

1074

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

1075

const size_t ievent_size = (sizeof(struct inotify_event)

1076

+ NAME_MAX + 1);

1077

struct {

1078

struct inotify_event event;

1079

char name_buffer[NAME_MAX + 1];

1080

} ievent_buffer;

1081

struct inotify_event *const ievent = &ievent_buffer.event;

1082

1083

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

1084

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

1085

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

1086

*quit_now = true;

1087

cleanup_task(&task);

1088

return;

1089

}

1090

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

1091

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

1092

filename);

1093

*quit_now = true;

1094

cleanup_task(&task);

1095

return;

1096

}

1097

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

1098

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

1099

char *question_filename = NULL;

1100

const ssize_t question_filename_length

1101

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

1102

if(question_filename_length < 0){

1103

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

1104

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

1105

} else {

1106

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

1107

if(not add_to_queue(queue, (task_context){

1108

.func=open_and_parse_question,

1109

.epoll_fd=epoll_fd,

1110

.question_filename=question_filename,

1111

.filename=question_filename,

1112

.password=password,

1113

.cancelled_filenames=cancelled_filenames,

1114

.current_time=current_time,

1115

.mandos_client_exited=mandos_client_exited,

1116

.password_is_read=password_is_read,

1117

})){

1118

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

1119

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

1120

} else {

1121

/* Force the added task (open_and_parse_question) to run

1122

immediately */

1123

queue->next_run = 1;

1124

}

1125

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

1126

if(not string_set_add(cancelled_filenames,

1127

question_filename)){

1128

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

1129

" cancelled_questions", question_filename);

1130

*quit_now = true;

1131

free(question_filename);

1132

cleanup_task(&task);

1133

return;

1134

}

1135

free(question_filename);

1136

}

1137

}

1138

}

1139

1140

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

1141

available yet */

1142

1143

/* Re-add myself to the queue */

1144

if(not add_to_queue(queue, task)){

1145

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

1146

" queue", filename);

1147

*quit_now = true;

1148

cleanup_task(&task);

1149

return;

1150

}

1151

1152

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

1153

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

1154

&(struct epoll_event)

1155

{ .events=EPOLLIN | EPOLLRDHUP });

1156

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

1157

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

1158

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

1159

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

1160

one second from now */

1161

if((queue->next_run == 0)

1162

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

1163

queue->next_run = *current_time + 1000000;

1164

}

1165

}

1166

}

1167

1168

__attribute__((nonnull))

1169

void open_and_parse_question(const task_context task,

1170

task_queue *const queue){

1171

__attribute__((cleanup(cleanup_string)))

1172

char *question_filename = task.question_filename;

1173

const int epoll_fd = task.epoll_fd;

1174

buffer *const password = task.password;

1175

string_set *const cancelled_filenames = task.cancelled_filenames;

1176

const mono_microsecs *const current_time = task.current_time;

1177

bool *const mandos_client_exited = task.mandos_client_exited;

1178

bool *const password_is_read = task.password_is_read;

1179

1180

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

1181

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

1182

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

1183

__attribute__((nonnull))

1184

void cleanup_g_key_file(GKeyFile **key_file){

1185

if(*key_file != NULL){

1186

g_key_file_free(*key_file);

1187

}

1188

}

1189

1190

__attribute__((cleanup(cleanup_g_key_file)))

1191

GKeyFile *key_file = g_key_file_new();

1192

if(key_file == NULL){

1193

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

1194

question_filename);

1195

return;

1196

}

1197

GError *glib_error = NULL;

1198

if(g_key_file_load_from_file(key_file, question_filename,

1199

G_KEY_FILE_NONE, &glib_error) != TRUE){

1200

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

1201

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

1202

if(glib_error->code != G_FILE_ERROR_NOENT){

1203

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

1204

question_filename, glib_error->message);

1205

}

1206

return;

1207

}

1208

1209

__attribute__((cleanup(cleanup_string)))

1210

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

1211

"Socket",

1212

&glib_error);

1213

if(socket_name == NULL){

1214

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

1215

question_filename, glib_error->message);

1216

return;

1217

}

1218

1219

if(strlen(socket_name) == 0){

1220

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

1221

question_filename);

1222

return;

1223

}

1224

1225

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

1226

&glib_error);

1227

if(glib_error != NULL){

1228

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

1229

question_filename, glib_error->message);

1230

return;

1231

}

1232

1233

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

1234

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

1235

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

1236

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

1237

return;

1238

}

1239

1240

guint64 notafter = g_key_file_get_uint64(key_file, "Ask",

1241

"NotAfter", &glib_error);

1242

if(glib_error != NULL){

1243

if(glib_error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND){

1244

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

1245

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

1246

}

1247

notafter = 0;

1248

}

1249

if(notafter != 0){

1250

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

1251

queue->next_run = notafter;

1252

}

1253

if(*current_time >= notafter){

1254

return;

1255

}

1256

}

1257

1258

const task_context connect_question_socket_task = {

1259

.func=connect_question_socket,

1260

.question_filename=strdup(question_filename),

1261

.epoll_fd=epoll_fd,

1262

.password=password,

1263

.filename=strdup(socket_name),

1264

.cancelled_filenames=task.cancelled_filenames,

1265

.mandos_client_exited=mandos_client_exited,

1266

.password_is_read=password_is_read,

1267

.current_time=current_time,

1268

};

1269

if(connect_question_socket_task.question_filename == NULL

1270

or connect_question_socket_task.filename == NULL

1271

or not add_to_queue(queue, connect_question_socket_task)){

1272

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

1273

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

1274

question_filename);

1275

cleanup_task(&connect_question_socket_task);

1276

return;

1277

}

1278

/* Force the added task (connect_question_socket) to run

1279

immediately */

1280

queue->next_run = 1;

1281

1282

if(notafter > 0){

1283

char *const dup_filename = strdup(question_filename);

1284

const task_context cancel_old_question_task = {

1285

.func=cancel_old_question,

1286

.question_filename=dup_filename,

1287

.notafter=notafter,

1288

.filename=dup_filename,

1289

.cancelled_filenames=cancelled_filenames,

1290

.current_time=current_time,

1291

};

1292

if(cancel_old_question_task.question_filename == NULL

1293

or not add_to_queue(queue, cancel_old_question_task)){

1294

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

1295

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

1296

cleanup_task(&cancel_old_question_task);

1297

return;

1298

}

1299

}

1300

}

1301

1302

__attribute__((nonnull))

1303

void cancel_old_question(const task_context task,

1304

task_queue *const queue){

1305

char *const question_filename = task.question_filename;

1306

string_set *const cancelled_filenames = task.cancelled_filenames;

1307

const mono_microsecs notafter = task.notafter;

1308

const mono_microsecs *const current_time = task.current_time;

1309

1310

if(*current_time >= notafter){

1311

if(not string_set_add(cancelled_filenames, question_filename)){

1312

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

1313

question_filename);

1314

}

1315

cleanup_task(&task);

1316

return;

1317

}

1318

1319

if(not add_to_queue(queue, task)){

1320

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

1321

"%s to queue", question_filename);

1322

cleanup_task(&task);

1323

return;

1324

}

1325

1326

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

1327

queue->next_run = notafter;

1328

}

1329

}

1330

1331

__attribute__((nonnull))

1332

void connect_question_socket(const task_context task,

1333

task_queue *const queue){

1334

char *const question_filename = task.question_filename;

1335

char *const filename = task.filename;

1336

const int epoll_fd = task.epoll_fd;

1337

buffer *const password = task.password;

1338

string_set *const cancelled_filenames = task.cancelled_filenames;

1339

bool *const mandos_client_exited = task.mandos_client_exited;

1340

bool *const password_is_read = task.password_is_read;

1341

const mono_microsecs *const current_time = task.current_time;

1342

1343

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

1344

1345

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

1346

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

1347

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

1348

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

1349

if(not string_set_add(cancelled_filenames, question_filename)){

1350

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

1351

question_filename);

1352

}

1353

cleanup_task(&task);

1354

return;

1355

}

1356

1357

const int fd = socket(PF_LOCAL, SOCK_DGRAM

1358

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

1359

if(fd < 0){

1360

error(0, errno,

1361

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

1362

if(not add_to_queue(queue, task)){

1363

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

1364

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

1365

filename);

1366

cleanup_task(&task);

1367

} else {

1368

/* Force the added task (connect_question_socket) to run

1369

immediately */

1370

queue->next_run = 1;

1371

}

1372

return;

1373

}

1374

1375

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

1376

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

1377

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

1378

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

1379

if(not add_to_queue(queue, task)){

1380

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

1381

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

1382

filename);

1383

cleanup_task(&task);

1384

} else {

1385

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

1386

at most one second from now */

1387

if((queue->next_run == 0)

1388

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

1389

queue->next_run = *current_time + 1000000;

1390

}

1391

}

1392

return;

1393

}

1394

1395

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

1396

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

1397

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

1398

filename);

1399

}

1400

1401

/* Add the fd to the epoll set */

1402

if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1403

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

1404

!= 0){

1405

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

1406

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

1407

if(not add_to_queue(queue, task)){

1408

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

1409

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

1410

filename);

1411

cleanup_task(&task);

1412

} else {

1413

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

1414

at most one second from now */

1415

if((queue->next_run == 0)

1416

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

1417

queue->next_run = *current_time + 1000000;

1418

}

1419

}

1420

return;

1421

}

1422

1423

/* add task send_password_to_socket to queue */

1424

const task_context send_password_to_socket_task = {

1425

.func=send_password_to_socket,

1426

.question_filename=question_filename,

1427

.filename=filename,

1428

.epoll_fd=epoll_fd,

1429

.fd=fd,

1430

.password=password,

1431

.cancelled_filenames=cancelled_filenames,

1432

.mandos_client_exited=mandos_client_exited,

1433

.password_is_read=password_is_read,

1434

.current_time=current_time,

1435

};

1436

1437

if(not add_to_queue(queue, send_password_to_socket_task)){

1438

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

1439

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

1440

question_filename, filename);

1441

cleanup_task(&send_password_to_socket_task);

1442

}

1443

}

1444

1445

__attribute__((nonnull))

1446

void send_password_to_socket(const task_context task,

1447

task_queue *const queue){

1448

char *const question_filename=task.question_filename;

1449

char *const filename=task.filename;

1450

const int epoll_fd=task.epoll_fd;

1451

const int fd=task.fd;

1452

buffer *const password=task.password;

1453

string_set *const cancelled_filenames=task.cancelled_filenames;

1454

bool *const mandos_client_exited = task.mandos_client_exited;

1455

bool *const password_is_read = task.password_is_read;

1456

const mono_microsecs *const current_time = task.current_time;

1457

1458

if(*mandos_client_exited and *password_is_read){

1459

1460

const size_t send_buffer_length = password->length + 2;

1461

char *send_buffer = malloc(send_buffer_length);

1462

if(send_buffer == NULL){

1463

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

1464

} else {

1465

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

1466

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

1467

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

1468

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

1469

" buffer");

1470

}

1471

}

1472

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

1473

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

1474

depending on whether the password entry was successful or

1475

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

1476

your message.

1477

1478

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

1479

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

1480

*/

1481

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

1482

/* Always add an extra NUL */

1483

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

1484

if(password->length > 0){

1485

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

1486

}

1487

errno = 0;

1488

ssize_t ssret = send(fd, send_buffer, send_buffer_length,

1489

MSG_NOSIGNAL);

1490

const error_t saved_errno = errno;

1491

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

1492

explicit_bzero(send_buffer, send_buffer_length);

1493

#else

1494

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

1495

#endif

1496

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

1497

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

1498

}

1499

free(send_buffer);

1500

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

1501

switch(saved_errno){

1502

case EINTR:

1503

case ENOBUFS:

1504

case ENOMEM:

1505

case EADDRINUSE:

1506

case ECONNREFUSED:

1507

case ECONNRESET:

1508

case ENOENT:

1509

case ETOOMANYREFS:

1510

case EAGAIN:

1511

/* Retry, below */

1512

break;

1513

case EMSGSIZE:

1514

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

1515

(uintmax_t)password->length);

1516

#if __GNUC__ < 7

1517

/* FALLTHROUGH */

1518

#else

1519

__attribute__((fallthrough));

1520

#endif

1521

case 0:

1522

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

1523

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

1524

}

1525

#if __GNUC__ < 7

1526

/* FALLTHROUGH */

1527

#else

1528

__attribute__((fallthrough));

1529

#endif

1530

default:

1531

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

1532

filename);

1533

if(not string_set_add(cancelled_filenames,

1534

question_filename)){

1535

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

1536

question_filename);

1537

}

1538

cleanup_task(&task);

1539

return;

1540

}

1541

} else {

1542

/* Success */

1543

cleanup_task(&task);

1544

return;

1545

}

1546

}

1547

}

1548

1549

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

1550

1551

if(not add_to_queue(queue, task)){

1552

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

1553

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

1554

filename);

1555

cleanup_task(&task);

1556

}

1557

1558

/* Add the fd to the epoll set */

1559

if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1560

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

1561

!= 0){

1562

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

1563

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

1564

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

1565

most one second from now */

1566

if((queue->next_run == 0)

1567

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

1568

queue->next_run = *current_time + 1000000;

1569

}

1570

}

1571

}

1572

1573

__attribute__((warn_unused_result))

1574

bool add_existing_questions(task_queue *const queue,

1575

const int epoll_fd,

1576

buffer *const password,

1577

string_set *cancelled_filenames,

1578

const mono_microsecs *const current_time,

1579

bool *const mandos_client_exited,

1580

bool *const password_is_read,

1581

const char *const dirname){

1582

__attribute__((cleanup(cleanup_string)))

1583

char *dir_pattern = NULL;

1584

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

1585

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

1586

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

1587

dirname);

1588

return false;

1589

}

1590

__attribute__((cleanup(globfree)))

1591

glob_t question_filenames = {};

1592

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

1593

NULL, &question_filenames)){

1594

case GLOB_ABORTED:

1595

default:

1596

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

1597

return false;

1598

case GLOB_NOMATCH:

1599

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

1600

return false;

1601

case GLOB_NOSPACE:

1602

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

1603

" names in %s", dirname);

1604

#if __GNUC__ < 7

1605

/* FALLTHROUGH */

1606

#else

1607

__attribute__((fallthrough));

1608

#endif

1609

case 0:

1610

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

1611

char *const question_filename = strdup(question_filenames

1612

.gl_pathv[i]);

1613

const task_context task = {

1614

.func=open_and_parse_question,

1615

.epoll_fd=epoll_fd,

1616

.question_filename=question_filename,

1617

.filename=question_filename,

1618

.password=password,

1619

.cancelled_filenames=cancelled_filenames,

1620

.current_time=current_time,

1621

.mandos_client_exited=mandos_client_exited,

1622

.password_is_read=password_is_read,

1623

};

1624

1625

if(question_filename == NULL

1626

or not add_to_queue(queue, task)){

1627

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

1628

" file %s to queue",

1629

question_filenames.gl_pathv[i]);

1630

free(question_filename);

1631

} else {

1632

queue->next_run = 1;

1633

}

1634

}

1635

return true;

1636

}

1637

}

1638

1639

__attribute__((nonnull, warn_unused_result))

1640

bool wait_for_event(const int epoll_fd,

1641

const mono_microsecs queue_next_run,

1642

const mono_microsecs current_time){

1643

__attribute__((const))

1644

int milliseconds_to_wait(const mono_microsecs currtime,

1645

const mono_microsecs nextrun){

1646

if(currtime >= nextrun){

1647

return 0;

1648

}

1649

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

1650

if(wait_time_ms > (uintmax_t)INT_MAX){

1651

return INT_MAX;

1652

}

1653

return (int)wait_time_ms;

1654

}

1655

1656

const int wait_time_ms = milliseconds_to_wait(current_time,

1657

queue_next_run);

1658

1659

/* Prepare unblocking of SIGCHLD during epoll_pwait */

1660

sigset_t temporary_unblocked_sigmask;

1661

/* Get current signal mask */

1662

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

1663

return false;

1664

}

1665

/* Remove SIGCHLD from the signal mask */

1666

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

1667

return false;

1668

}

1669

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

1670

int ret = epoll_pwait(epoll_fd, events,

1671

sizeof(events) / sizeof(struct epoll_event),

1672

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

1673

&temporary_unblocked_sigmask);

1674

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

1675

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

1676

" ...", epoll_fd,

1677

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

1678

return false;

1679

}

1680

return clear_all_fds_from_epoll_set(epoll_fd);

1681

}

1682

1683

bool clear_all_fds_from_epoll_set(const int epoll_fd){

1684

/* Create a new empty epoll set */

1685

__attribute__((cleanup(cleanup_close)))

1686

const int new_epoll_fd = epoll_create1(EPOLL_CLOEXEC);

1687

if(new_epoll_fd < 0){

1688

return false;

1689

}

1690

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

1691

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

1692

return false;

1693

}

1694

return true;

1695

}

1696

1697

__attribute__((nonnull, warn_unused_result))

1698

bool run_queue(task_queue **const queue,

1699

string_set *const cancelled_filenames,

1700

bool *const quit_now){

1701

1702

task_queue *new_queue = create_queue();

1703

if(new_queue == NULL){

1704

return false;

1705

}

1706

1707

__attribute__((cleanup(string_set_clear)))

1708

string_set old_cancelled_filenames = {};

1709

string_set_swap(cancelled_filenames, &old_cancelled_filenames);

1710

1711

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

1712

loop in case we aborted in the middle */

1713

size_t i;

1714

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

1715

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

1716

const char *const question_filename = task->question_filename;

1717

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

1718

if(question_filename != NULL

1719

and string_set_contains(old_cancelled_filenames,

1720

question_filename)){

1721

cleanup_task(task);

1722

continue;

1723

}

1724

task->func(*task, new_queue);

1725

}

1726

1727

if(*quit_now){

1728

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

1729

remaining tasks in the current queue */

1730

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

1731

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

1732

}

1733

free_queue(*queue);

1734

*queue = new_queue;

1735

new_queue = NULL;

1736

return false;

1737

}

1738

free_queue(*queue);

1739

*queue = new_queue;

1740

new_queue = NULL;

1741

1742

return true;

1743

}

1744

1745

/* End of regular code section */

1746

1747

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

1748

1749

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

1750

teardown functions */

1751

typedef struct {

1752

struct sigaction orig_sigaction;

1753

sigset_t orig_sigmask;

1754

} test_fixture;

1755

1756

static void test_setup(test_fixture *fixture,

1757

__attribute__((unused))

1758

gconstpointer user_data){

1759

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

1760

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

1761

}

1762

1763

static void test_teardown(test_fixture *fixture,

1764

__attribute__((unused))

1765

gconstpointer user_data){

1766

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

1767

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

1768

}

1769

1770

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

1771

__attribute__((pure, nonnull, warn_unused_result))

1772

static task_context *find_matching_task(const task_queue *const queue,

1773

const task_context task){

1774

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

1775

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

1776

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

1777

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

1778

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

1779

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

1780

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

1781

1782

/* task_func *const func */

1783

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

1784

continue;

1785

}

1786

/* char *const question_filename; */

1787

if(task.question_filename != NULL

1788

and (current_task->question_filename == NULL

1789

or strcmp(current_task->question_filename,

1790

task.question_filename) != 0)){

1791

continue;

1792

}

1793

/* const pid_t pid; */

1794

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

1795

continue;

1796

}

1797

/* const int epoll_fd; */

1798

if(task.epoll_fd != 0

1799

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

1800

continue;

1801

}

1802

/* bool *const quit_now; */

1803

if(task.quit_now != NULL

1804

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

1805

continue;

1806

}

1807

/* const int fd; */

1808

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

1809

continue;

1810

}

1811

/* bool *const mandos_client_exited; */

1812

if(task.mandos_client_exited != NULL

1813

and current_task->mandos_client_exited

1814

!= task.mandos_client_exited){

1815

continue;

1816

}

1817

/* buffer *const password; */

1818

if(task.password != NULL

1819

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

1820

continue;

1821

}

1822

/* bool *const password_is_read; */

1823

if(task.password_is_read != NULL

1824

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

1825

continue;

1826

}

1827

/* char *filename; */

1828

if(task.filename != NULL

1829

and (current_task->filename == NULL

1830

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

1831

continue;

1832

}

1833

/* string_set *const cancelled_filenames; */

1834

if(task.cancelled_filenames != NULL

1835

and current_task->cancelled_filenames

1836

!= task.cancelled_filenames){

1837

continue;

1838

}

1839

/* const mono_microsecs notafter; */

1840

if(task.notafter != 0

1841

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

1842

continue;

1843

}

1844

/* const mono_microsecs *const current_time; */

1845

if(task.current_time != NULL

1846

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

1847

continue;

1848

}

1849

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

1850

return current_task;

1851

}

1852

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

1853

return NULL;

1854

}

1855

1856

static void test_create_queue(__attribute__((unused))

1857

test_fixture *fixture,

1858

__attribute__((unused))

1859

gconstpointer user_data){

1860

__attribute__((cleanup(cleanup_queue)))

1861

task_queue *const queue = create_queue();

1862

g_assert_nonnull(queue);

1863

g_assert_null(queue->tasks);

1864

g_assert_true(queue->length == 0);

1865

g_assert_true(queue->next_run == 0);

1866

}

1867

1868

static task_func dummy_func;

1869

1870

static void test_add_to_queue(__attribute__((unused))

1871

test_fixture *fixture,

1872

__attribute__((unused))

1873

gconstpointer user_data){

1874

__attribute__((cleanup(cleanup_queue)))

1875

task_queue *queue = create_queue();

1876

g_assert_nonnull(queue);

1877

1878

g_assert_true(add_to_queue(queue,

1879

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

1880

g_assert_true(queue->length == 1);

1881

g_assert_nonnull(queue->tasks);

1882

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

1883

}

1884

1885

static void dummy_func(__attribute__((unused))

1886

const task_context task,

1887

__attribute__((unused))

1888

task_queue *const queue){

1889

}

1890

1891

static void test_queue_has_question_empty(__attribute__((unused))

1892

test_fixture *fixture,

1893

__attribute__((unused))

1894

gconstpointer user_data){

1895

__attribute__((cleanup(cleanup_queue)))

1896

task_queue *queue = create_queue();

1897

g_assert_nonnull(queue);

1898

g_assert_false(queue_has_question(queue));

1899

}

1900

1901

static void test_queue_has_question_false(__attribute__((unused))

1902

test_fixture *fixture,

1903

__attribute__((unused))

1904

gconstpointer user_data){

1905

__attribute__((cleanup(cleanup_queue)))

1906

task_queue *queue = create_queue();

1907

g_assert_nonnull(queue);

1908

g_assert_true(add_to_queue(queue,

1909

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

1910

g_assert_false(queue_has_question(queue));

1911

}

1912

1913

static void test_queue_has_question_true(__attribute__((unused))

1914

test_fixture *fixture,

1915

__attribute__((unused))

1916

gconstpointer user_data){

1917

__attribute__((cleanup(cleanup_queue)))

1918

task_queue *queue = create_queue();

1919

g_assert_nonnull(queue);

1920

char *const question_filename

1921

= strdup("/nonexistent/question_filename");

1922

g_assert_nonnull(question_filename);

1923

task_context task = {

1924

.func=dummy_func,

1925

.question_filename=question_filename,

1926

};

1927

g_assert_true(add_to_queue(queue, task));

1928

g_assert_true(queue_has_question(queue));

1929

}

1930

1931

static void test_queue_has_question_false2(__attribute__((unused))

1932

test_fixture *fixture,

1933

__attribute__((unused))

1934

gconstpointer user_data){

1935

__attribute__((cleanup(cleanup_queue)))

1936

task_queue *queue = create_queue();

1937

g_assert_nonnull(queue);

1938

task_context task = { .func=dummy_func };

1939

g_assert_true(add_to_queue(queue, task));

1940

g_assert_true(add_to_queue(queue, task));

1941

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

1942

g_assert_false(queue_has_question(queue));

1943

}

1944

1945

static void test_queue_has_question_true2(__attribute__((unused))

1946

test_fixture *fixture,

1947

__attribute__((unused))

1948

gconstpointer user_data){

1949

__attribute__((cleanup(cleanup_queue)))

1950

task_queue *queue = create_queue();

1951

g_assert_nonnull(queue);

1952

task_context task1 = { .func=dummy_func };

1953

g_assert_true(add_to_queue(queue, task1));

1954

char *const question_filename

1955

= strdup("/nonexistent/question_filename");

1956

g_assert_nonnull(question_filename);

1957

task_context task2 = {

1958

.func=dummy_func,

1959

.question_filename=question_filename,

1960

};

1961

g_assert_true(add_to_queue(queue, task2));

1962

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

1963

g_assert_true(queue_has_question(queue));

1964

}

1965

1966

static void test_cleanup_buffer(__attribute__((unused))

1967

test_fixture *fixture,

1968

__attribute__((unused))

1969

gconstpointer user_data){

1970

buffer buf = {};

1971

1972

const size_t buffersize = 10;

1973

1974

buf.data = malloc(buffersize);

1975

g_assert_nonnull(buf.data);

1976

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

1977

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

1978

}

1979

1980

cleanup_buffer(&buf);

1981

g_assert_null(buf.data);

1982

}

1983

1984

static

1985

void test_string_set_new_set_contains_nothing(__attribute__((unused))

1986

test_fixture *fixture,

1987

__attribute__((unused))

1988

gconstpointer

1989

user_data){

1990

__attribute__((cleanup(string_set_clear)))

1991

string_set set = {};

1992

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

1993

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

1994

}

1995

1996

static void

1997

test_string_set_with_added_string_contains_it(__attribute__((unused))

1998

test_fixture *fixture,

1999

__attribute__((unused))

2000

gconstpointer

2001

user_data){

2002

__attribute__((cleanup(string_set_clear)))

2003

string_set set = {};

2004

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

2005

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

2006

}

2007

2008

static void

2009

test_string_set_cleared_does_not_contain_str(__attribute__((unused))

2010

test_fixture *fixture,

2011

__attribute__((unused))

2012

gconstpointer user_data){

2013

__attribute__((cleanup(string_set_clear)))

2014

string_set set = {};

2015

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

2016

string_set_clear(&set);

2017

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

2018

}

2019

2020

static

2021

void test_string_set_swap_one_with_empty(__attribute__((unused))

2022

test_fixture *fixture,

2023

__attribute__((unused))

2024

gconstpointer user_data){

2025

__attribute__((cleanup(string_set_clear)))

2026

string_set set1 = {};

2027

__attribute__((cleanup(string_set_clear)))

2028

string_set set2 = {};

2029

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

2030

string_set_swap(&set1, &set2);

2031

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

2032

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

2033

}

2034

2035

static

2036

void test_string_set_swap_empty_with_one(__attribute__((unused))

2037

test_fixture *fixture,

2038

__attribute__((unused))

2039

gconstpointer user_data){

2040

__attribute__((cleanup(string_set_clear)))

2041

string_set set1 = {};

2042

__attribute__((cleanup(string_set_clear)))

2043

string_set set2 = {};

2044

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

2045

string_set_swap(&set1, &set2);

2046

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

2047

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

2048

}

2049

2050

static void test_string_set_swap_one_with_one(__attribute__((unused))

2051

test_fixture *fixture,

2052

__attribute__((unused))

2053

gconstpointer

2054

user_data){

2055

__attribute__((cleanup(string_set_clear)))

2056

string_set set1 = {};

2057

__attribute__((cleanup(string_set_clear)))

2058

string_set set2 = {};

2059

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

2060

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

2061

string_set_swap(&set1, &set2);

2062

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

2063

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

2064

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

2065

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

2066

}

2067

2068

static bool fd_has_cloexec_and_nonblock(const int);

2069

2070

static bool epoll_set_contains(int, int, uint32_t);

2071

2072

static void test_start_mandos_client(test_fixture *fixture,

2073

__attribute__((unused))

2074

gconstpointer user_data){

2075

2076

bool mandos_client_exited = false;

2077

bool quit_now = false;

2078

__attribute__((cleanup(cleanup_close)))

2079

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2080

g_assert_cmpint(epoll_fd, >=, 0);

2081

__attribute__((cleanup(cleanup_queue)))

2082

task_queue *queue = create_queue();

2083

g_assert_nonnull(queue);

2084

buffer password = {};

2085

bool password_is_read = false;

2086

const char helper_directory[] = "/nonexistent";

2087

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

2088

2089

g_assert_true(start_mandos_client(queue, epoll_fd,

2090

&mandos_client_exited, &quit_now,

2091

&password, &password_is_read,

2092

&fixture->orig_sigaction,

2093

fixture->orig_sigmask,

2094

helper_directory, 0, 0, argv));

2095

2096

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

2097

2098

const task_context *const added_wait_task

2099

= find_matching_task(queue, (task_context){

2100

.func=wait_for_mandos_client_exit,

2101

.mandos_client_exited=&mandos_client_exited,

2102

.quit_now=&quit_now,

2103

});

2104

g_assert_nonnull(added_wait_task);

2105

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

2106

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

2107

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

2108

2109

const task_context *const added_read_task

2110

= find_matching_task(queue, (task_context){

2111

.func=read_mandos_client_output,

2112

.epoll_fd=epoll_fd,

2113

.password=&password,

2114

.password_is_read=&password_is_read,

2115

.quit_now=&quit_now,

2116

});

2117

g_assert_nonnull(added_read_task);

2118

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

2119

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

2120

g_assert_true(epoll_set_contains(epoll_fd, added_read_task->fd,

2121

EPOLLIN | EPOLLRDHUP));

2122

}

2123

2124

static bool fd_has_cloexec_and_nonblock(const int fd){

2125

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

2126

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

2127

return ((socket_fd_flags >= 0)

2128

and (socket_fd_flags & FD_CLOEXEC)

2129

and (socket_file_flags >= 0)

2130

and (socket_file_flags & O_NONBLOCK));

2131

}

2132

2133

__attribute__((const))

2134

bool is_privileged(void){

2135

uid_t user = getuid() + 1;

2136

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

2137

user++;

2138

}

2139

gid_t group = getuid() + 1;

2140

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

2141

group++;

2142

}

2143

const pid_t pid = fork();

2144

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

2145

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

2146

if(errno != EPERM){

2147

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

2148

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

2149

}

2150

exit(EXIT_FAILURE);

2151

}

2152

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

2153

if(errno != EPERM){

2154

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

2155

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

2156

}

2157

exit(EXIT_FAILURE);

2158

}

2159

exit(EXIT_SUCCESS);

2160

}

2161

int status;

2162

waitpid(pid, &status, 0);

2163

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

2164

return true;

2165

}

2166

return false;

2167

}

2168

2169

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

2170

/* Only scan for events in this eventmask */

2171

const uint32_t eventmask = EPOLLIN | EPOLLOUT | EPOLLRDHUP;

2172

__attribute__((cleanup(cleanup_string)))

2173

char *fdinfo_name = NULL;

2174

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

2175

g_assert_cmpint(ret, >, 0);

2176

g_assert_nonnull(fdinfo_name);

2177

2178

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

2179

g_assert_nonnull(fdinfo);

2180

uint32_t reported_events;

2181

buffer line = {};

2182

int found_fd = -1;

2183

2184

do {

2185

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

2186

break;

2187

}

2188

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

2189

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

2190

&found_fd, &reported_events) == 2){

2191

if(found_fd == fd){

2192

break;

2193

}

2194

}

2195

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

2196

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

2197

free(line.data);

2198

if(found_fd != fd){

2199

return false;

2200

}

2201

2202

if(events == 0){

2203

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

2204

return true;

2205

}

2206

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

2207

}

2208

2209

static void test_start_mandos_client_execv(test_fixture *fixture,

2210

__attribute__((unused))

2211

gconstpointer user_data){

2212

bool mandos_client_exited = false;

2213

bool quit_now = false;

2214

__attribute__((cleanup(cleanup_close)))

2215

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2216

g_assert_cmpint(epoll_fd, >=, 0);

2217

__attribute__((cleanup(cleanup_queue)))

2218

task_queue *queue = create_queue();

2219

g_assert_nonnull(queue);

2220

__attribute__((cleanup(cleanup_buffer)))

2221

buffer password = {};

2222

const char helper_directory[] = "/nonexistent";

2223

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

2224

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

2225

2226

{

2227

__attribute__((cleanup(cleanup_close)))

2228

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

2229

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2230

g_assert_cmpint(devnull_fd, >=, 0);

2231

__attribute__((cleanup(cleanup_close)))

2232

const int real_stderr_fd = dup(STDERR_FILENO);

2233

g_assert_cmpint(real_stderr_fd, >=, 0);

2234

dup2(devnull_fd, STDERR_FILENO);

2235

2236

const bool success = start_mandos_client(queue, epoll_fd,

2237

&mandos_client_exited,

2238

&quit_now,

2239

&password,

2240

(bool[]){false},

2241

&fixture->orig_sigaction,

2242

fixture->orig_sigmask,

2243

helper_directory, 0, 0,

2244

argv);

2245

dup2(real_stderr_fd, STDERR_FILENO);

2246

g_assert_true(success);

2247

}

2248

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

2249

2250

struct timespec starttime, currtime;

2251

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

2252

do {

2253

queue->next_run = 0;

2254

string_set cancelled_filenames = {};

2255

2256

{

2257

__attribute__((cleanup(cleanup_close)))

2258

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

2259

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2260

g_assert_cmpint(devnull_fd, >=, 0);

2261

__attribute__((cleanup(cleanup_close)))

2262

const int real_stderr_fd = dup(STDERR_FILENO);

2263

g_assert_cmpint(real_stderr_fd, >=, 0);

2264

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

2265

dup2(devnull_fd, STDERR_FILENO);

2266

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

2267

&quit_now);

2268

dup2(real_stderr_fd, STDERR_FILENO);

2269

if(not success){

2270

break;

2271

}

2272

}

2273

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

2274

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

2275

and (not quit_now)

2276

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

2277

2278

g_assert_true(quit_now);

2279

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

2280

g_assert_true(mandos_client_exited);

2281

}

2282

2283

static void test_start_mandos_client_suid_euid(test_fixture *fixture,

2284

__attribute__((unused))

2285

gconstpointer

2286

user_data){

2287

if(not is_privileged()){

2288

g_test_skip("Not privileged");

2289

return;

2290

}

2291

2292

bool mandos_client_exited = false;

2293

bool quit_now = false;

2294

__attribute__((cleanup(cleanup_close)))

2295

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2296

g_assert_cmpint(epoll_fd, >=, 0);

2297

__attribute__((cleanup(cleanup_queue)))

2298

task_queue *queue = create_queue();

2299

g_assert_nonnull(queue);

2300

__attribute__((cleanup(cleanup_buffer)))

2301

buffer password = {};

2302

bool password_is_read = false;

2303

const char helper_directory[] = "/nonexistent";

2304

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

2305

uid_t user = 1000;

2306

gid_t group = 1001;

2307

2308

const bool success = start_mandos_client(queue, epoll_fd,

2309

&mandos_client_exited,

2310

&quit_now, &password,

2311

&password_is_read,

2312

&fixture->orig_sigaction,

2313

fixture->orig_sigmask,

2314

helper_directory, user,

2315

group, argv);

2316

g_assert_true(success);

2317

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

2318

2319

struct timespec starttime, currtime;

2320

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

2321

do {

2322

queue->next_run = 0;

2323

string_set cancelled_filenames = {};

2324

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

2325

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

2326

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

2327

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

2328

and (not quit_now)

2329

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

2330

2331

g_assert_false(quit_now);

2332

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

2333

g_assert_true(mandos_client_exited);

2334

2335

g_assert_true(password_is_read);

2336

g_assert_nonnull(password.data);

2337

2338

uintmax_t id;

2339

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

2340

==, 1);

2341

g_assert_true((uid_t)id == id);

2342

2343

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

2344

}

2345

2346

static void test_start_mandos_client_suid_egid(test_fixture *fixture,

2347

__attribute__((unused))

2348

gconstpointer

2349

user_data){

2350

if(not is_privileged()){

2351

g_test_skip("Not privileged");

2352

return;

2353

}

2354

2355

bool mandos_client_exited = false;

2356

bool quit_now = false;

2357

__attribute__((cleanup(cleanup_close)))

2358

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2359

g_assert_cmpint(epoll_fd, >=, 0);

2360

__attribute__((cleanup(cleanup_queue)))

2361

task_queue *queue = create_queue();

2362

g_assert_nonnull(queue);

2363

__attribute__((cleanup(cleanup_buffer)))

2364

buffer password = {};

2365

bool password_is_read = false;

2366

const char helper_directory[] = "/nonexistent";

2367

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

2368

uid_t user = 1000;

2369

gid_t group = 1001;

2370

2371

const bool success = start_mandos_client(queue, epoll_fd,

2372

&mandos_client_exited,

2373

&quit_now, &password,

2374

&password_is_read,

2375

&fixture->orig_sigaction,

2376

fixture->orig_sigmask,

2377

helper_directory, user,

2378

group, argv);

2379

g_assert_true(success);

2380

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

2381

2382

struct timespec starttime, currtime;

2383

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

2384

do {

2385

queue->next_run = 0;

2386

string_set cancelled_filenames = {};

2387

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

2388

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

2389

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

2390

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

2391

and (not quit_now)

2392

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

2393

2394

g_assert_false(quit_now);

2395

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

2396

g_assert_true(mandos_client_exited);

2397

2398

g_assert_true(password_is_read);

2399

g_assert_nonnull(password.data);

2400

2401

uintmax_t id;

2402

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

2403

==, 1);

2404

g_assert_true((gid_t)id == id);

2405

2406

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

2407

}

2408

2409

static void test_start_mandos_client_suid_ruid(test_fixture *fixture,

2410

__attribute__((unused))

2411

gconstpointer

2412

user_data){

2413

if(not is_privileged()){

2414

g_test_skip("Not privileged");

2415

return;

2416

}

2417

2418

bool mandos_client_exited = false;

2419

bool quit_now = false;

2420

__attribute__((cleanup(cleanup_close)))

2421

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2422

g_assert_cmpint(epoll_fd, >=, 0);

2423

__attribute__((cleanup(cleanup_queue)))

2424

task_queue *queue = create_queue();

2425

g_assert_nonnull(queue);

2426

__attribute__((cleanup(cleanup_buffer)))

2427

buffer password = {};

2428

bool password_is_read = false;

2429

const char helper_directory[] = "/nonexistent";

2430

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

2431

NULL };

2432

uid_t user = 1000;

2433

gid_t group = 1001;

2434

2435

const bool success = start_mandos_client(queue, epoll_fd,

2436

&mandos_client_exited,

2437

&quit_now, &password,

2438

&password_is_read,

2439

&fixture->orig_sigaction,

2440

fixture->orig_sigmask,

2441

helper_directory, user,

2442

group, argv);

2443

g_assert_true(success);

2444

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

2445

2446

struct timespec starttime, currtime;

2447

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

2448

do {

2449

queue->next_run = 0;

2450

string_set cancelled_filenames = {};

2451

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

2452

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

2453

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

2454

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

2455

and (not quit_now)

2456

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

2457

2458

g_assert_false(quit_now);

2459

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

2460

g_assert_true(mandos_client_exited);

2461

2462

g_assert_true(password_is_read);

2463

g_assert_nonnull(password.data);

2464

2465

uintmax_t id;

2466

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

2467

==, 1);

2468

g_assert_true((uid_t)id == id);

2469

2470

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

2471

}

2472

2473

static void test_start_mandos_client_suid_rgid(test_fixture *fixture,

2474

__attribute__((unused))

2475

gconstpointer

2476

user_data){

2477

if(not is_privileged()){

2478

g_test_skip("Not privileged");

2479

return;

2480

}

2481

2482

bool mandos_client_exited = false;

2483

bool quit_now = false;

2484

__attribute__((cleanup(cleanup_close)))

2485

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2486

g_assert_cmpint(epoll_fd, >=, 0);

2487

__attribute__((cleanup(cleanup_queue)))

2488

task_queue *queue = create_queue();

2489

g_assert_nonnull(queue);

2490

__attribute__((cleanup(cleanup_buffer)))

2491

buffer password = {};

2492

bool password_is_read = false;

2493

const char helper_directory[] = "/nonexistent";

2494

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

2495

NULL };

2496

uid_t user = 1000;

2497

gid_t group = 1001;

2498

2499

const bool success = start_mandos_client(queue, epoll_fd,

2500

&mandos_client_exited,

2501

&quit_now, &password,

2502

&password_is_read,

2503

&fixture->orig_sigaction,

2504

fixture->orig_sigmask,

2505

helper_directory, user,

2506

group, argv);

2507

g_assert_true(success);

2508

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

2509

2510

struct timespec starttime, currtime;

2511

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

2512

do {

2513

queue->next_run = 0;

2514

string_set cancelled_filenames = {};

2515

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

2516

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

2517

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

2518

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

2519

and (not quit_now)

2520

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

2521

2522

g_assert_false(quit_now);

2523

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

2524

g_assert_true(mandos_client_exited);

2525

2526

g_assert_true(password_is_read);

2527

g_assert_nonnull(password.data);

2528

2529

uintmax_t id;

2530

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

2531

==, 1);

2532

g_assert_true((gid_t)id == id);

2533

2534

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

2535

}

2536

2537

static void test_start_mandos_client_read(test_fixture *fixture,

2538

__attribute__((unused))

2539

gconstpointer user_data){

2540

bool mandos_client_exited = false;

2541

bool quit_now = false;

2542

__attribute__((cleanup(cleanup_close)))

2543

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2544

g_assert_cmpint(epoll_fd, >=, 0);

2545

__attribute__((cleanup(cleanup_queue)))

2546

task_queue *queue = create_queue();

2547

g_assert_nonnull(queue);

2548

__attribute__((cleanup(cleanup_buffer)))

2549

buffer password = {};

2550

bool password_is_read = false;

2551

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

2552

const char helper_directory[] = "/nonexistent";

2553

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

2554

NULL };

2555

2556

const bool success = start_mandos_client(queue, epoll_fd,

2557

&mandos_client_exited,

2558

&quit_now, &password,

2559

&password_is_read,

2560

&fixture->orig_sigaction,

2561

fixture->orig_sigmask,

2562

helper_directory, 0, 0,

2563

argv);

2564

g_assert_true(success);

2565

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

2566

2567

struct timespec starttime, currtime;

2568

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

2569

do {

2570

queue->next_run = 0;

2571

string_set cancelled_filenames = {};

2572

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

2573

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

2574

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

2575

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

2576

and (not quit_now)

2577

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

2578

2579

g_assert_false(quit_now);

2580

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

2581

g_assert_true(mandos_client_exited);

2582

2583

g_assert_true(password_is_read);

2584

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

2585

sizeof(dummy_test_password)-1);

2586

g_assert_nonnull(password.data);

2587

g_assert_cmpint(memcmp(dummy_test_password, password.data,

2588

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

2589

}

2590

2591

static

2592

void test_start_mandos_client_helper_directory(test_fixture *fixture,

2593

__attribute__((unused))

2594

gconstpointer

2595

user_data){

2596

bool mandos_client_exited = false;

2597

bool quit_now = false;

2598

__attribute__((cleanup(cleanup_close)))

2599

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2600

g_assert_cmpint(epoll_fd, >=, 0);

2601

__attribute__((cleanup(cleanup_queue)))

2602

task_queue *queue = create_queue();

2603

g_assert_nonnull(queue);

2604

__attribute__((cleanup(cleanup_buffer)))

2605

buffer password = {};

2606

bool password_is_read = false;

2607

const char helper_directory[] = "/nonexistent";

2608

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

2609

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

2610

2611

const bool success = start_mandos_client(queue, epoll_fd,

2612

&mandos_client_exited,

2613

&quit_now, &password,

2614

&password_is_read,

2615

&fixture->orig_sigaction,

2616

fixture->orig_sigmask,

2617

helper_directory, 0, 0,

2618

argv);

2619

g_assert_true(success);

2620

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

2621

2622

struct timespec starttime, currtime;

2623

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

2624

do {

2625

queue->next_run = 0;

2626

string_set cancelled_filenames = {};

2627

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

2628

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

2629

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

2630

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

2631

and (not quit_now)

2632

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

2633

2634

g_assert_false(quit_now);

2635

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

2636

g_assert_true(mandos_client_exited);

2637

2638

g_assert_true(password_is_read);

2639

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

2640

sizeof(helper_directory)-1);

2641

g_assert_nonnull(password.data);

2642

g_assert_cmpint(memcmp(helper_directory, password.data,

2643

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

2644

}

2645

2646

__attribute__((nonnull, warn_unused_result))

2647

static bool proc_status_sigblk_to_sigset(const char *const,

2648

sigset_t *const);

2649

2650

static void test_start_mandos_client_sigmask(test_fixture *fixture,

2651

__attribute__((unused))

2652

gconstpointer user_data){

2653

bool mandos_client_exited = false;

2654

bool quit_now = false;

2655

__attribute__((cleanup(cleanup_close)))

2656

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2657

g_assert_cmpint(epoll_fd, >=, 0);

2658

__attribute__((cleanup(cleanup_queue)))

2659

task_queue *queue = create_queue();

2660

g_assert_nonnull(queue);

2661

__attribute__((cleanup(cleanup_buffer)))

2662

buffer password = {};

2663

bool password_is_read = false;

2664

const char helper_directory[] = "/nonexistent";

2665

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

2666

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

2667

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

2668

2669

g_assert_true(start_mandos_client(queue, epoll_fd,

2670

&mandos_client_exited, &quit_now,

2671

&password, &password_is_read,

2672

&fixture->orig_sigaction,

2673

fixture->orig_sigmask,

2674

helper_directory, 0, 0, argv));

2675

2676

struct timespec starttime, currtime;

2677

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

2678

do {

2679

queue->next_run = 0;

2680

string_set cancelled_filenames = {};

2681

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

2682

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

2683

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

2684

} while((not (mandos_client_exited and password_is_read))

2685

and (not quit_now)

2686

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

2687

g_assert_true(mandos_client_exited);

2688

g_assert_true(password_is_read);

2689

2690

sigset_t parsed_sigmask;

2691

g_assert_true(proc_status_sigblk_to_sigset(password.data,

2692

&parsed_sigmask));

2693

2694

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

2695

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

2696

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

2697

g_assert_true(has_signal);

2698

} else {

2699

g_assert_false(has_signal);

2700

}

2701

}

2702

}

2703

2704

__attribute__((nonnull, warn_unused_result))

2705

static bool proc_status_sigblk_to_sigset(const char *const sigblk,

2706

sigset_t *const sigmask){

2707

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

2708

uintmax_t scanned_sigmask;

2709

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

2710

return false;

2711

}

2712

if(sigemptyset(sigmask) != 0){

2713

return false;

2714

}

2715

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

2716

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

2717

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

2718

return false;

2719

}

2720

}

2721

}

2722

return true;

2723

}

2724

2725

static void run_task_with_stderr_to_dev_null(const task_context task,

2726

task_queue *const queue);

2727

2728

static

2729

void test_wait_for_mandos_client_exit_badpid(__attribute__((unused))

2730

test_fixture *fixture,

2731

__attribute__((unused))

2732

gconstpointer user_data){

2733

2734

bool mandos_client_exited = false;

2735

bool quit_now = false;

2736

2737

__attribute__((cleanup(cleanup_queue)))

2738

task_queue *queue = create_queue();

2739

g_assert_nonnull(queue);

2740

const task_context task = {

2741

.func=wait_for_mandos_client_exit,

2742

.pid=1,

2743

.mandos_client_exited=&mandos_client_exited,

2744

.quit_now=&quit_now,

2745

};

2746

run_task_with_stderr_to_dev_null(task, queue);

2747

2748

g_assert_false(mandos_client_exited);

2749

g_assert_true(quit_now);

2750

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

2751

}

2752

2753

static void run_task_with_stderr_to_dev_null(const task_context task,

2754

task_queue *const queue){

2755

FILE *real_stderr = stderr;

2756

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

2757

g_assert_nonnull(devnull);

2758

2759

stderr = devnull;

2760

task.func(task, queue);

2761

stderr = real_stderr;

2762

2763

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

2764

}

2765

2766

static

2767

void test_wait_for_mandos_client_exit_noexit(test_fixture *fixture,

2768

__attribute__((unused))

2769

gconstpointer user_data){

2770

bool mandos_client_exited = false;

2771

bool quit_now = false;

2772

2773

pid_t create_eternal_process(void){

2774

const pid_t pid = fork();

2775

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

2776

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

2777

_exit(EXIT_FAILURE);

2778

}

2779

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

2780

_exit(EXIT_FAILURE);

2781

}

2782

while(true){

2783

pause();

2784

}

2785

}

2786

return pid;

2787

}

2788

pid_t pid = create_eternal_process();

2789

g_assert_true(pid != -1);

2790

2791

__attribute__((cleanup(cleanup_queue)))

2792

task_queue *queue = create_queue();

2793

g_assert_nonnull(queue);

2794

const task_context task = {

2795

.func=wait_for_mandos_client_exit,

2796

.pid=pid,

2797

.mandos_client_exited=&mandos_client_exited,

2798

.quit_now=&quit_now,

2799

};

2800

task.func(task, queue);

2801

2802

g_assert_false(mandos_client_exited);

2803

g_assert_false(quit_now);

2804

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

2805

2806

g_assert_nonnull(find_matching_task(queue, (task_context){

2807

.func=wait_for_mandos_client_exit,

2808

.pid=task.pid,

2809

.mandos_client_exited=&mandos_client_exited,

2810

.quit_now=&quit_now,

2811

}));

2812

}

2813

2814

static

2815

void test_wait_for_mandos_client_exit_success(test_fixture *fixture,

2816

__attribute__((unused))

2817

gconstpointer

2818

user_data){

2819

bool mandos_client_exited = false;

2820

bool quit_now = false;

2821

2822

pid_t create_successful_process(void){

2823

const pid_t pid = fork();

2824

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

2825

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

2826

_exit(EXIT_FAILURE);

2827

}

2828

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

2829

_exit(EXIT_FAILURE);

2830

}

2831

exit(EXIT_SUCCESS);

2832

}

2833

return pid;

2834

}

2835

const pid_t pid = create_successful_process();

2836

g_assert_true(pid != -1);

2837

2838

__attribute__((cleanup(cleanup_queue)))

2839

task_queue *queue = create_queue();

2840

g_assert_nonnull(queue);

2841

const task_context initial_task = {

2842

.func=wait_for_mandos_client_exit,

2843

.pid=pid,

2844

.mandos_client_exited=&mandos_client_exited,

2845

.quit_now=&quit_now,

2846

};

2847

g_assert_true(add_to_queue(queue, initial_task));

2848

2849

struct timespec starttime, currtime;

2850

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

2851

__attribute__((cleanup(cleanup_close)))

2852

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2853

do {

2854

queue->next_run = 0;

2855

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

2856

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

2857

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

2858

} while((not mandos_client_exited)

2859

and (not quit_now)

2860

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

2861

2862

g_assert_true(mandos_client_exited);

2863

g_assert_false(quit_now);

2864

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

2865

}

2866

2867

static

2868

void test_wait_for_mandos_client_exit_failure(test_fixture *fixture,

2869

__attribute__((unused))

2870

gconstpointer

2871

user_data){

2872

bool mandos_client_exited = false;

2873

bool quit_now = false;

2874

2875

pid_t create_failing_process(void){

2876

const pid_t pid = fork();

2877

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

2878

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

2879

_exit(EXIT_FAILURE);

2880

}

2881

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

2882

_exit(EXIT_FAILURE);

2883

}

2884

exit(EXIT_FAILURE);

2885

}

2886

return pid;

2887

}

2888

const pid_t pid = create_failing_process();

2889

g_assert_true(pid != -1);

2890

2891

__attribute__((cleanup(string_set_clear)))

2892

string_set cancelled_filenames = {};

2893

__attribute__((cleanup(cleanup_close)))

2894

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2895

g_assert_cmpint(epoll_fd, >=, 0);

2896

__attribute__((cleanup(cleanup_queue)))

2897

task_queue *queue = create_queue();

2898

g_assert_nonnull(queue);

2899

g_assert_true(add_to_queue(queue, (task_context){

2900

.func=wait_for_mandos_client_exit,

2901

.pid=pid,

2902

.mandos_client_exited=&mandos_client_exited,

2903

.quit_now=&quit_now,

2904

}));

2905

2906

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

2907

2908

__attribute__((cleanup(cleanup_close)))

2909

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

2910

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2911

g_assert_cmpint(devnull_fd, >=, 0);

2912

__attribute__((cleanup(cleanup_close)))

2913

const int real_stderr_fd = dup(STDERR_FILENO);

2914

g_assert_cmpint(real_stderr_fd, >=, 0);

2915

2916

struct timespec starttime, currtime;

2917

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

2918

do {

2919

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

2920

dup2(devnull_fd, STDERR_FILENO);

2921

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

2922

&quit_now);

2923

dup2(real_stderr_fd, STDERR_FILENO);

2924

if(not success){

2925

break;

2926

}

2927

2928

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

2929

} while((not mandos_client_exited)

2930

and (not quit_now)

2931

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

2932

2933

g_assert_true(quit_now);

2934

g_assert_true(mandos_client_exited);

2935

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

2936

}

2937

2938

static

2939

void test_wait_for_mandos_client_exit_killed(test_fixture *fixture,

2940

__attribute__((unused))

2941

gconstpointer user_data){

2942

bool mandos_client_exited = false;

2943

bool quit_now = false;

2944

2945

pid_t create_killed_process(void){

2946

const pid_t pid = fork();

2947

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

2948

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

2949

_exit(EXIT_FAILURE);

2950

}

2951

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

2952

_exit(EXIT_FAILURE);

2953

}

2954

while(true){

2955

pause();

2956

}

2957

}

2958

kill(pid, SIGKILL);

2959

return pid;

2960

}

2961

const pid_t pid = create_killed_process();

2962

g_assert_true(pid != -1);

2963

2964

__attribute__((cleanup(string_set_clear)))

2965

string_set cancelled_filenames = {};

2966

__attribute__((cleanup(cleanup_close)))

2967

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2968

g_assert_cmpint(epoll_fd, >=, 0);

2969

__attribute__((cleanup(cleanup_queue)))

2970

task_queue *queue = create_queue();

2971

g_assert_nonnull(queue);

2972

g_assert_true(add_to_queue(queue, (task_context){

2973

.func=wait_for_mandos_client_exit,

2974

.pid=pid,

2975

.mandos_client_exited=&mandos_client_exited,

2976

.quit_now=&quit_now,

2977

}));

2978

2979

__attribute__((cleanup(cleanup_close)))

2980

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

2981

O_WRONLY | O_CLOEXEC, O_NOCTTY);

2982

g_assert_cmpint(devnull_fd, >=, 0);

2983

__attribute__((cleanup(cleanup_close)))

2984

const int real_stderr_fd = dup(STDERR_FILENO);

2985

g_assert_cmpint(real_stderr_fd, >=, 0);

2986

2987

struct timespec starttime, currtime;

2988

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

2989

do {

2990

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

2991

dup2(devnull_fd, STDERR_FILENO);

2992

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

2993

&quit_now);

2994

dup2(real_stderr_fd, STDERR_FILENO);

2995

if(not success){

2996

break;

2997

}

2998

2999

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

3000

} while((not mandos_client_exited)

3001

and (not quit_now)

3002

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

3003

3004

g_assert_true(mandos_client_exited);

3005

g_assert_true(quit_now);

3006

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

3007

}

3008

3009

static bool epoll_set_does_not_contain(int, int);

3010

3011

static

3012

void test_read_mandos_client_output_readerror(__attribute__((unused))

3013

test_fixture *fixture,

3014

__attribute__((unused))

3015

gconstpointer

3016

user_data){

3017

__attribute__((cleanup(cleanup_close)))

3018

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3019

g_assert_cmpint(epoll_fd, >=, 0);

3020

3021

__attribute__((cleanup(cleanup_buffer)))

3022

buffer password = {};

3023

3024

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

3025

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

3026

O_RDONLY | O_CLOEXEC | O_NOCTTY);

3027

3028

bool password_is_read = false;

3029

bool quit_now = false;

3030

__attribute__((cleanup(cleanup_queue)))

3031

task_queue *queue = create_queue();

3032

g_assert_nonnull(queue);

3033

3034

task_context task = {

3035

.func=read_mandos_client_output,

3036

.epoll_fd=epoll_fd,

3037

.fd=fd,

3038

.password=&password,

3039

.password_is_read=&password_is_read,

3040

.quit_now=&quit_now,

3041

};

3042

run_task_with_stderr_to_dev_null(task, queue);

3043

g_assert_false(password_is_read);

3044

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

3045

g_assert_true(quit_now);

3046

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

3047

3048

g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));

3049

3050

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

3051

}

3052

3053

static bool epoll_set_does_not_contain(int epoll_fd, int fd){

3054

return not epoll_set_contains(epoll_fd, fd, 0);

3055

}

3056

3057

static

3058

void test_read_mandos_client_output_nodata(__attribute__((unused))

3059

test_fixture *fixture,

3060

__attribute__((unused))

3061

gconstpointer user_data){

3062

__attribute__((cleanup(cleanup_close)))

3063

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3064

g_assert_cmpint(epoll_fd, >=, 0);

3065

3066

int pipefds[2];

3067

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

3068

3069

__attribute__((cleanup(cleanup_buffer)))

3070

buffer password = {};

3071

3072

bool password_is_read = false;

3073

bool quit_now = false;

3074

__attribute__((cleanup(cleanup_queue)))

3075

task_queue *queue = create_queue();

3076

g_assert_nonnull(queue);

3077

3078

task_context task = {

3079

.func=read_mandos_client_output,

3080

.epoll_fd=epoll_fd,

3081

.fd=pipefds[0],

3082

.password=&password,

3083

.password_is_read=&password_is_read,

3084

.quit_now=&quit_now,

3085

};

3086

task.func(task, queue);

3087

g_assert_false(password_is_read);

3088

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

3089

g_assert_false(quit_now);

3090

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

3091

3092

g_assert_nonnull(find_matching_task(queue, (task_context){

3093

.func=read_mandos_client_output,

3094

.epoll_fd=epoll_fd,

3095

.fd=pipefds[0],

3096

.password=&password,

3097

.password_is_read=&password_is_read,

3098

.quit_now=&quit_now,

3099

}));

3100

3101

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3102

EPOLLIN | EPOLLRDHUP));

3103

3104

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

3105

}

3106

3107

static void test_read_mandos_client_output_eof(__attribute__((unused))

3108

test_fixture *fixture,

3109

__attribute__((unused))

3110

gconstpointer

3111

user_data){

3112

__attribute__((cleanup(cleanup_close)))

3113

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3114

g_assert_cmpint(epoll_fd, >=, 0);

3115

3116

int pipefds[2];

3117

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

3118

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

3119

3120

__attribute__((cleanup(cleanup_buffer)))

3121

buffer password = {};

3122

3123

bool password_is_read = false;

3124

bool quit_now = false;

3125

__attribute__((cleanup(cleanup_queue)))

3126

task_queue *queue = create_queue();

3127

g_assert_nonnull(queue);

3128

3129

task_context task = {

3130

.func=read_mandos_client_output,

3131

.epoll_fd=epoll_fd,

3132

.fd=pipefds[0],

3133

.password=&password,

3134

.password_is_read=&password_is_read,

3135

.quit_now=&quit_now,

3136

};

3137

task.func(task, queue);

3138

g_assert_true(password_is_read);

3139

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

3140

g_assert_false(quit_now);

3141

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

3142

3143

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

3144

3145

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

3146

}

3147

3148

static

3149

void test_read_mandos_client_output_once(__attribute__((unused))

3150

test_fixture *fixture,

3151

__attribute__((unused))

3152

gconstpointer user_data){

3153

__attribute__((cleanup(cleanup_close)))

3154

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3155

g_assert_cmpint(epoll_fd, >=, 0);

3156

3157

int pipefds[2];

3158

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

3159

3160

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

3161

/* Start with a pre-allocated buffer */

3162

__attribute__((cleanup(cleanup_buffer)))

3163

buffer password = {

3164

.data=malloc(sizeof(dummy_test_password)),

3165

.length=0,

3166

.allocated=sizeof(dummy_test_password),

3167

};

3168

g_assert_nonnull(password.data);

3169

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

3170

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

3171

}

3172

3173

bool password_is_read = false;

3174

bool quit_now = false;

3175

__attribute__((cleanup(cleanup_queue)))

3176

task_queue *queue = create_queue();

3177

g_assert_nonnull(queue);

3178

3179

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3180

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

3181

sizeof(dummy_test_password)),

3182

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

3183

3184

task_context task = {

3185

.func=read_mandos_client_output,

3186

.epoll_fd=epoll_fd,

3187

.fd=pipefds[0],

3188

.password=&password,

3189

.password_is_read=&password_is_read,

3190

.quit_now=&quit_now,

3191

};

3192

task.func(task, queue);

3193

3194

g_assert_false(password_is_read);

3195

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

3196

(int)sizeof(dummy_test_password));

3197

g_assert_nonnull(password.data);

3198

g_assert_cmpint(memcmp(password.data, dummy_test_password,

3199

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

3200

3201

g_assert_false(quit_now);

3202

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

3203

3204

g_assert_nonnull(find_matching_task(queue, (task_context){

3205

.func=read_mandos_client_output,

3206

.epoll_fd=epoll_fd,

3207

.fd=pipefds[0],

3208

.password=&password,

3209

.password_is_read=&password_is_read,

3210

.quit_now=&quit_now,

3211

}));

3212

3213

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3214

EPOLLIN | EPOLLRDHUP));

3215

3216

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

3217

}

3218

3219

static

3220

void test_read_mandos_client_output_malloc(__attribute__((unused))

3221

test_fixture *fixture,

3222

__attribute__((unused))

3223

gconstpointer user_data){

3224

__attribute__((cleanup(cleanup_close)))

3225

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3226

g_assert_cmpint(epoll_fd, >=, 0);

3227

3228

int pipefds[2];

3229

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

3230

3231

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

3232

/* Start with an empty buffer */

3233

__attribute__((cleanup(cleanup_buffer)))

3234

buffer password = {};

3235

3236

bool password_is_read = false;

3237

bool quit_now = false;

3238

__attribute__((cleanup(cleanup_queue)))

3239

task_queue *queue = create_queue();

3240

g_assert_nonnull(queue);

3241

3242

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3243

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

3244

sizeof(dummy_test_password)),

3245

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

3246

3247

task_context task = {

3248

.func=read_mandos_client_output,

3249

.epoll_fd=epoll_fd,

3250

.fd=pipefds[0],

3251

.password=&password,

3252

.password_is_read=&password_is_read,

3253

.quit_now=&quit_now,

3254

};

3255

task.func(task, queue);

3256

3257

g_assert_false(password_is_read);

3258

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

3259

(int)sizeof(dummy_test_password));

3260

g_assert_nonnull(password.data);

3261

g_assert_cmpint(memcmp(password.data, dummy_test_password,

3262

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

3263

3264

g_assert_false(quit_now);

3265

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

3266

3267

g_assert_nonnull(find_matching_task(queue, (task_context){

3268

.func=read_mandos_client_output,

3269

.epoll_fd=epoll_fd,

3270

.fd=pipefds[0],

3271

.password=&password,

3272

.password_is_read=&password_is_read,

3273

.quit_now=&quit_now,

3274

}));

3275

3276

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3277

EPOLLIN | EPOLLRDHUP));

3278

3279

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

3280

}

3281

3282

static

3283

void test_read_mandos_client_output_append(__attribute__((unused))

3284

test_fixture *fixture,

3285

__attribute__((unused))

3286

gconstpointer user_data){

3287

__attribute__((cleanup(cleanup_close)))

3288

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3289

g_assert_cmpint(epoll_fd, >=, 0);

3290

3291

int pipefds[2];

3292

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

3293

3294

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

3295

__attribute__((cleanup(cleanup_buffer)))

3296

buffer password = {

3297

.data=malloc(PIPE_BUF),

3298

.length=PIPE_BUF,

3299

.allocated=PIPE_BUF,

3300

};

3301

g_assert_nonnull(password.data);

3302

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

3303

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

3304

}

3305

3306

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

3307

char password_expected[PIPE_BUF];

3308

memcpy(password_expected, password.data, PIPE_BUF);

3309

3310

bool password_is_read = false;

3311

bool quit_now = false;

3312

__attribute__((cleanup(cleanup_queue)))

3313

task_queue *queue = create_queue();

3314

g_assert_nonnull(queue);

3315

3316

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3317

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

3318

sizeof(dummy_test_password)),

3319

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

3320

3321

task_context task = {

3322

.func=read_mandos_client_output,

3323

.epoll_fd=epoll_fd,

3324

.fd=pipefds[0],

3325

.password=&password,

3326

.password_is_read=&password_is_read,

3327

.quit_now=&quit_now,

3328

};

3329

task.func(task, queue);

3330

3331

g_assert_false(password_is_read);

3332

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

3333

PIPE_BUF + sizeof(dummy_test_password));

3334

g_assert_nonnull(password.data);

3335

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

3336

==, 0);

3337

g_assert_cmpint(memcmp(password.data + PIPE_BUF,

3338

dummy_test_password,

3339

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

3340

g_assert_false(quit_now);

3341

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

3342

3343

g_assert_nonnull(find_matching_task(queue, (task_context){

3344

.func=read_mandos_client_output,

3345

.epoll_fd=epoll_fd,

3346

.fd=pipefds[0],

3347

.password=&password,

3348

.password_is_read=&password_is_read,

3349

.quit_now=&quit_now,

3350

}));

3351

3352

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3353

EPOLLIN | EPOLLRDHUP));

3354

}

3355

3356

static char *make_temporary_directory(void);

3357

3358

static void test_add_inotify_dir_watch(__attribute__((unused))

3359

test_fixture *fixture,

3360

__attribute__((unused))

3361

gconstpointer user_data){

3362

__attribute__((cleanup(cleanup_close)))

3363

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3364

g_assert_cmpint(epoll_fd, >=, 0);

3365

__attribute__((cleanup(cleanup_queue)))

3366

task_queue *queue = create_queue();

3367

g_assert_nonnull(queue);

3368

__attribute__((cleanup(string_set_clear)))

3369

string_set cancelled_filenames = {};

3370

const mono_microsecs current_time = 0;

3371

3372

bool quit_now = false;

3373

buffer password = {};

3374

bool mandos_client_exited = false;

3375

bool password_is_read = false;

3376

3377

__attribute__((cleanup(cleanup_string)))

3378

char *tempdir = make_temporary_directory();

3379

g_assert_nonnull(tempdir);

3380

3381

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3382

&password, tempdir,

3383

&cancelled_filenames,

3384

&current_time,

3385

&mandos_client_exited,

3386

&password_is_read));

3387

3388

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

3389

3390

const task_context *const added_read_task

3391

= find_matching_task(queue, (task_context){

3392

.func=read_inotify_event,

3393

.epoll_fd=epoll_fd,

3394

.quit_now=&quit_now,

3395

.password=&password,

3396

.filename=tempdir,

3397

.cancelled_filenames=&cancelled_filenames,

3398

.current_time=&current_time,

3399

.mandos_client_exited=&mandos_client_exited,

3400

.password_is_read=&password_is_read,

3401

});

3402

g_assert_nonnull(added_read_task);

3403

3404

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

3405

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3406

g_assert_true(epoll_set_contains(added_read_task->epoll_fd,

3407

added_read_task->fd,

3408

EPOLLIN | EPOLLRDHUP));

3409

3410

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

3411

}

3412

3413

static char *make_temporary_directory(void){

3414

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

3415

g_assert_nonnull(name);

3416

char *result = mkdtemp(name);

3417

if(result == NULL){

3418

free(name);

3419

}

3420

return result;

3421

}

3422

3423

static void test_add_inotify_dir_watch_fail(__attribute__((unused))

3424

test_fixture *fixture,

3425

__attribute__((unused))

3426

gconstpointer user_data){

3427

__attribute__((cleanup(cleanup_close)))

3428

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3429

g_assert_cmpint(epoll_fd, >=, 0);

3430

__attribute__((cleanup(cleanup_queue)))

3431

task_queue *queue = create_queue();

3432

g_assert_nonnull(queue);

3433

__attribute__((cleanup(string_set_clear)))

3434

string_set cancelled_filenames = {};

3435

const mono_microsecs current_time = 0;

3436

3437

bool quit_now = false;

3438

buffer password = {};

3439

bool mandos_client_exited = false;

3440

bool password_is_read = false;

3441

3442

const char nonexistent_dir[] = "/nonexistent";

3443

3444

FILE *real_stderr = stderr;

3445

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

3446

g_assert_nonnull(devnull);

3447

stderr = devnull;

3448

g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3449

&password, nonexistent_dir,

3450

&cancelled_filenames,

3451

&current_time,

3452

&mandos_client_exited,

3453

&password_is_read));

3454

stderr = real_stderr;

3455

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

3456

3457

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

3458

}

3459

3460

static void test_add_inotify_dir_watch_nondir(__attribute__((unused))

3461

test_fixture *fixture,

3462

__attribute__((unused))

3463

gconstpointer

3464

user_data){

3465

__attribute__((cleanup(cleanup_close)))

3466

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3467

g_assert_cmpint(epoll_fd, >=, 0);

3468

__attribute__((cleanup(cleanup_queue)))

3469

task_queue *queue = create_queue();

3470

g_assert_nonnull(queue);

3471

__attribute__((cleanup(string_set_clear)))

3472

string_set cancelled_filenames = {};

3473

const mono_microsecs current_time = 0;

3474

3475

bool quit_now = false;

3476

buffer password = {};

3477

bool mandos_client_exited = false;

3478

bool password_is_read = false;

3479

3480

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

3481

3482

FILE *real_stderr = stderr;

3483

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

3484

g_assert_nonnull(devnull);

3485

stderr = devnull;

3486

g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3487

&password, not_a_directory,

3488

&cancelled_filenames,

3489

&current_time,

3490

&mandos_client_exited,

3491

&password_is_read));

3492

stderr = real_stderr;

3493

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

3494

3495

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

3496

}

3497

3498

static void test_add_inotify_dir_watch_EAGAIN(__attribute__((unused))

3499

test_fixture *fixture,

3500

__attribute__((unused))

3501

gconstpointer

3502

user_data){

3503

__attribute__((cleanup(cleanup_close)))

3504

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3505

g_assert_cmpint(epoll_fd, >=, 0);

3506

__attribute__((cleanup(cleanup_queue)))

3507

task_queue *queue = create_queue();

3508

g_assert_nonnull(queue);

3509

__attribute__((cleanup(string_set_clear)))

3510

string_set cancelled_filenames = {};

3511

const mono_microsecs current_time = 0;

3512

3513

bool quit_now = false;

3514

buffer password = {};

3515

bool mandos_client_exited = false;

3516

bool password_is_read = false;

3517

3518

__attribute__((cleanup(cleanup_string)))

3519

char *tempdir = make_temporary_directory();

3520

g_assert_nonnull(tempdir);

3521

3522

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3523

&password, tempdir,

3524

&cancelled_filenames,

3525

&current_time,

3526

&mandos_client_exited,

3527

&password_is_read));

3528

3529

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

3530

3531

const task_context *const added_read_task

3532

= find_matching_task(queue,

3533

(task_context){ .func=read_inotify_event });

3534

g_assert_nonnull(added_read_task);

3535

3536

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

3537

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3538

3539

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

3540

const size_t ievent_size = (sizeof(struct inotify_event)

3541

+ NAME_MAX + 1);

3542

struct inotify_event *ievent = malloc(ievent_size);

3543

g_assert_nonnull(ievent);

3544

3545

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

3546

-1);

3547

g_assert_cmpint(errno, ==, EAGAIN);

3548

3549

free(ievent);

3550

3551

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

3552

}

3553

3554

static char *make_temporary_file_in_directory(const char

3555

*const dir);

3556

3557

static

3558

void test_add_inotify_dir_watch_IN_CLOSE_WRITE(__attribute__((unused))

3559

test_fixture *fixture,

3560

__attribute__((unused))

3561

gconstpointer

3562

user_data){

3563

__attribute__((cleanup(cleanup_close)))

3564

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3565

g_assert_cmpint(epoll_fd, >=, 0);

3566

__attribute__((cleanup(cleanup_queue)))

3567

task_queue *queue = create_queue();

3568

g_assert_nonnull(queue);

3569

__attribute__((cleanup(string_set_clear)))

3570

string_set cancelled_filenames = {};

3571

const mono_microsecs current_time = 0;

3572

3573

bool quit_now = false;

3574

buffer password = {};

3575

bool mandos_client_exited = false;

3576

bool password_is_read = false;

3577

3578

__attribute__((cleanup(cleanup_string)))

3579

char *tempdir = make_temporary_directory();

3580

g_assert_nonnull(tempdir);

3581

3582

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3583

&password, tempdir,

3584

&cancelled_filenames,

3585

&current_time,

3586

&mandos_client_exited,

3587

&password_is_read));

3588

3589

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

3590

3591

const task_context *const added_read_task

3592

= find_matching_task(queue,

3593

(task_context){ .func=read_inotify_event });

3594

g_assert_nonnull(added_read_task);

3595

3596

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

3597

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3598

3599

__attribute__((cleanup(cleanup_string)))

3600

char *filename = make_temporary_file_in_directory(tempdir);

3601

g_assert_nonnull(filename);

3602

3603

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

3604

const size_t ievent_size = (sizeof(struct inotify_event)

3605

+ NAME_MAX + 1);

3606

struct inotify_event *ievent = malloc(ievent_size);

3607

g_assert_nonnull(ievent);

3608

3609

ssize_t read_size = 0;

3610

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

3611

3612

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

3613

g_assert_true(ievent->mask & IN_CLOSE_WRITE);

3614

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

3615

3616

free(ievent);

3617

3618

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

3619

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

3620

}

3621

3622

static char *make_temporary_prefixed_file_in_directory(const char

3623

*const prefix,

3624

const char

3625

*const dir){

3626

char *filename = NULL;

3627

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

3628

>, 0);

3629

g_assert_nonnull(filename);

3630

const int fd = mkostemp(filename, O_CLOEXEC);

3631

g_assert_cmpint(fd, >=, 0);

3632

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

3633

return filename;

3634

}

3635

3636

static char *make_temporary_file_in_directory(const char

3637

*const dir){

3638

return make_temporary_prefixed_file_in_directory("temp", dir);

3639

}

3640

3641

static

3642

void test_add_inotify_dir_watch_IN_MOVED_TO(__attribute__((unused))

3643

test_fixture *fixture,

3644

__attribute__((unused))

3645

gconstpointer user_data){

3646

__attribute__((cleanup(cleanup_close)))

3647

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3648

g_assert_cmpint(epoll_fd, >=, 0);

3649

__attribute__((cleanup(cleanup_queue)))

3650

task_queue *queue = create_queue();

3651

g_assert_nonnull(queue);

3652

__attribute__((cleanup(string_set_clear)))

3653

string_set cancelled_filenames = {};

3654

const mono_microsecs current_time = 0;

3655

3656

bool quit_now = false;

3657

buffer password = {};

3658

bool mandos_client_exited = false;

3659

bool password_is_read = false;

3660

3661

__attribute__((cleanup(cleanup_string)))

3662

char *watchdir = make_temporary_directory();

3663

g_assert_nonnull(watchdir);

3664

3665

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3666

&password, watchdir,

3667

&cancelled_filenames,

3668

&current_time,

3669

&mandos_client_exited,

3670

&password_is_read));

3671

3672

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

3673

3674

const task_context *const added_read_task

3675

= find_matching_task(queue,

3676

(task_context){ .func=read_inotify_event });

3677

g_assert_nonnull(added_read_task);

3678

3679

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

3680

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3681

3682

char *sourcedir = make_temporary_directory();

3683

g_assert_nonnull(sourcedir);

3684

3685

__attribute__((cleanup(cleanup_string)))

3686

char *filename = make_temporary_file_in_directory(sourcedir);

3687

g_assert_nonnull(filename);

3688

3689

__attribute__((cleanup(cleanup_string)))

3690

char *targetfilename = NULL;

3691

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

3692

basename(filename)), >, 0);

3693

g_assert_nonnull(targetfilename);

3694

3695

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

3696

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

3697

free(sourcedir);

3698

3699

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

3700

const size_t ievent_size = (sizeof(struct inotify_event)

3701

+ NAME_MAX + 1);

3702

struct inotify_event *ievent = malloc(ievent_size);

3703

g_assert_nonnull(ievent);

3704

3705

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

3706

3707

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

3708

g_assert_true(ievent->mask & IN_MOVED_TO);

3709

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

3710

3711

free(ievent);

3712

3713

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

3714

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

3715

}

3716

3717

static

3718

void test_add_inotify_dir_watch_IN_MOVED_FROM(__attribute__((unused))

3719

test_fixture *fixture,

3720

__attribute__((unused))

3721

gconstpointer

3722

user_data){

3723

__attribute__((cleanup(cleanup_close)))

3724

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3725

g_assert_cmpint(epoll_fd, >=, 0);

3726

__attribute__((cleanup(cleanup_queue)))

3727

task_queue *queue = create_queue();

3728

g_assert_nonnull(queue);

3729

__attribute__((cleanup(string_set_clear)))

3730

string_set cancelled_filenames = {};

3731

const mono_microsecs current_time = 0;

3732

3733

bool quit_now = false;

3734

buffer password = {};

3735

bool mandos_client_exited = false;

3736

bool password_is_read = false;

3737

3738

__attribute__((cleanup(cleanup_string)))

3739

char *tempdir = make_temporary_directory();

3740

g_assert_nonnull(tempdir);

3741

3742

__attribute__((cleanup(cleanup_string)))

3743

char *tempfilename = make_temporary_file_in_directory(tempdir);

3744

g_assert_nonnull(tempfilename);

3745

3746

__attribute__((cleanup(cleanup_string)))

3747

char *targetdir = make_temporary_directory();

3748

g_assert_nonnull(targetdir);

3749

3750

__attribute__((cleanup(cleanup_string)))

3751

char *targetfilename = NULL;

3752

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

3753

basename(tempfilename)), >, 0);

3754

g_assert_nonnull(targetfilename);

3755

3756

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3757

&password, tempdir,

3758

&cancelled_filenames,

3759

&current_time,

3760

&mandos_client_exited,

3761

&password_is_read));

3762

3763

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

3764

3765

const task_context *const added_read_task

3766

= find_matching_task(queue,

3767

(task_context){ .func=read_inotify_event });

3768

g_assert_nonnull(added_read_task);

3769

3770

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

3771

const size_t ievent_size = (sizeof(struct inotify_event)

3772

+ NAME_MAX + 1);

3773

struct inotify_event *ievent = malloc(ievent_size);

3774

g_assert_nonnull(ievent);

3775

3776

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

3777

3778

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

3779

g_assert_true(ievent->mask & IN_MOVED_FROM);

3780

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

3781

3782

free(ievent);

3783

3784

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

3785

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

3786

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

3787

}

3788

3789

static

3790

void test_add_inotify_dir_watch_IN_DELETE(__attribute__((unused))

3791

test_fixture *fixture,

3792

__attribute__((unused))

3793

gconstpointer user_data){

3794

__attribute__((cleanup(cleanup_close)))

3795

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3796

g_assert_cmpint(epoll_fd, >=, 0);

3797

__attribute__((cleanup(cleanup_queue)))

3798

task_queue *queue = create_queue();

3799

g_assert_nonnull(queue);

3800

__attribute__((cleanup(string_set_clear)))

3801

string_set cancelled_filenames = {};

3802

const mono_microsecs current_time = 0;

3803

3804

bool quit_now = false;

3805

buffer password = {};

3806

bool mandos_client_exited = false;

3807

bool password_is_read = false;

3808

3809

__attribute__((cleanup(cleanup_string)))

3810

char *tempdir = make_temporary_directory();

3811

g_assert_nonnull(tempdir);

3812

3813

__attribute__((cleanup(cleanup_string)))

3814

char *tempfile = make_temporary_file_in_directory(tempdir);

3815

g_assert_nonnull(tempfile);

3816

3817

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3818

&password, tempdir,

3819

&cancelled_filenames,

3820

&current_time,

3821

&mandos_client_exited,

3822

&password_is_read));

3823

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

3824

3825

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

3826

3827

const task_context *const added_read_task

3828

= find_matching_task(queue,

3829

(task_context){ .func=read_inotify_event });

3830

g_assert_nonnull(added_read_task);

3831

3832

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

3833

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3834

3835

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

3836

const size_t ievent_size = (sizeof(struct inotify_event)

3837

+ NAME_MAX + 1);

3838

struct inotify_event *ievent = malloc(ievent_size);

3839

g_assert_nonnull(ievent);

3840

3841

ssize_t read_size = 0;

3842

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

3843

3844

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

3845

g_assert_true(ievent->mask & IN_DELETE);

3846

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

3847

3848

free(ievent);

3849

3850

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

3851

}

3852

3853

static

3854

void test_add_inotify_dir_watch_IN_EXCL_UNLINK(__attribute__((unused))

3855

test_fixture *fixture,

3856

__attribute__((unused))

3857

gconstpointer

3858

user_data){

3859

__attribute__((cleanup(cleanup_close)))

3860

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3861

g_assert_cmpint(epoll_fd, >=, 0);

3862

__attribute__((cleanup(cleanup_queue)))

3863

task_queue *queue = create_queue();

3864

g_assert_nonnull(queue);

3865

__attribute__((cleanup(string_set_clear)))

3866

string_set cancelled_filenames = {};

3867

const mono_microsecs current_time = 0;

3868

3869

bool quit_now = false;

3870

buffer password = {};

3871

bool mandos_client_exited = false;

3872

bool password_is_read = false;

3873

3874

__attribute__((cleanup(cleanup_string)))

3875

char *tempdir = make_temporary_directory();

3876

g_assert_nonnull(tempdir);

3877

3878

__attribute__((cleanup(cleanup_string)))

3879

char *tempfile = make_temporary_file_in_directory(tempdir);

3880

g_assert_nonnull(tempfile);

3881

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

3882

| O_NOFOLLOW);

3883

g_assert_cmpint(tempfile_fd, >, 2);

3884

3885

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3886

&password, tempdir,

3887

&cancelled_filenames,

3888

&current_time,

3889

&mandos_client_exited,

3890

&password_is_read));

3891

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

3892

3893

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

3894

3895

const task_context *const added_read_task

3896

= find_matching_task(queue,

3897

(task_context){ .func=read_inotify_event });

3898

g_assert_nonnull(added_read_task);

3899

3900

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

3901

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3902

3903

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

3904

const size_t ievent_size = (sizeof(struct inotify_event)

3905

+ NAME_MAX + 1);

3906

struct inotify_event *ievent = malloc(ievent_size);

3907

g_assert_nonnull(ievent);

3908

3909

ssize_t read_size = 0;

3910

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

3911

3912

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

3913

g_assert_true(ievent->mask & IN_DELETE);

3914

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

3915

3916

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

3917

3918

/* IN_EXCL_UNLINK should make the closing of the previously unlinked

3919

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

3920

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

3921

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

3922

g_assert_true(errno == EAGAIN);

3923

3924

free(ievent);

3925

3926

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

3927

}

3928

3929

static void test_read_inotify_event_readerror(__attribute__((unused))

3930

test_fixture *fixture,

3931

__attribute__((unused))

3932

gconstpointer

3933

user_data){

3934

__attribute__((cleanup(cleanup_close)))

3935

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3936

g_assert_cmpint(epoll_fd, >=, 0);

3937

const mono_microsecs current_time = 0;

3938

3939

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

3940

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

3941

O_RDONLY | O_CLOEXEC | O_NOCTTY);

3942

3943

bool quit_now = false;

3944

__attribute__((cleanup(cleanup_queue)))

3945

task_queue *queue = create_queue();

3946

g_assert_nonnull(queue);

3947

3948

task_context task = {

3949

.func=read_inotify_event,

3950

.epoll_fd=epoll_fd,

3951

.fd=fd,

3952

.quit_now=&quit_now,

3953

.filename=strdup("/nonexistent"),

3954

.cancelled_filenames = &(string_set){},

3955

.notafter=0,

3956

.current_time=&current_time,

3957

};

3958

g_assert_nonnull(task.filename);

3959

run_task_with_stderr_to_dev_null(task, queue);

3960

g_assert_true(quit_now);

3961

g_assert_true(queue->next_run == 0);

3962

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

3963

3964

g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));

3965

3966

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

3967

}

3968

3969

static void test_read_inotify_event_bad_epoll(__attribute__((unused))

3970

test_fixture *fixture,

3971

__attribute__((unused))

3972

gconstpointer

3973

user_data){

3974

const mono_microsecs current_time = 17;

3975

3976

int pipefds[2];

3977

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

3978

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

3979

3980

bool quit_now = false;

3981

buffer password = {};

3982

bool mandos_client_exited = false;

3983

bool password_is_read = false;

3984

__attribute__((cleanup(cleanup_queue)))

3985

task_queue *queue = create_queue();

3986

g_assert_nonnull(queue);

3987

3988

task_context task = {

3989

.func=read_inotify_event,

3990

.epoll_fd=epoll_fd,

3991

.fd=pipefds[0],

3992

.quit_now=&quit_now,

3993

.password=&password,

3994

.filename=strdup("/nonexistent"),

3995

.cancelled_filenames = &(string_set){},

3996

.notafter=0,

3997

.current_time=&current_time,

3998

.mandos_client_exited=&mandos_client_exited,

3999

.password_is_read=&password_is_read,

4000

};

4001

g_assert_nonnull(task.filename);

4002

run_task_with_stderr_to_dev_null(task, queue);

4003

4004

g_assert_nonnull(find_matching_task(queue, task));

4005

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

4006

4007

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

4008

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

4009

}

4010

4011

static void test_read_inotify_event_nodata(__attribute__((unused))

4012

test_fixture *fixture,

4013

__attribute__((unused))

4014

gconstpointer user_data){

4015

__attribute__((cleanup(cleanup_close)))

4016

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4017

g_assert_cmpint(epoll_fd, >=, 0);

4018

const mono_microsecs current_time = 0;

4019

4020

int pipefds[2];

4021

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

4022

4023

bool quit_now = false;

4024

buffer password = {};

4025

bool mandos_client_exited = false;

4026

bool password_is_read = false;

4027

__attribute__((cleanup(cleanup_queue)))

4028

task_queue *queue = create_queue();

4029

g_assert_nonnull(queue);

4030

4031

task_context task = {

4032

.func=read_inotify_event,

4033

.epoll_fd=epoll_fd,

4034

.fd=pipefds[0],

4035

.quit_now=&quit_now,

4036

.password=&password,

4037

.filename=strdup("/nonexistent"),

4038

.cancelled_filenames = &(string_set){},

4039

.notafter=0,

4040

.current_time=&current_time,

4041

.mandos_client_exited=&mandos_client_exited,

4042

.password_is_read=&password_is_read,

4043

};

4044

g_assert_nonnull(task.filename);

4045

task.func(task, queue);

4046

g_assert_false(quit_now);

4047

g_assert_true(queue->next_run == 0);

4048

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

4049

4050

g_assert_nonnull(find_matching_task(queue, (task_context){

4051

.func=read_inotify_event,

4052

.epoll_fd=epoll_fd,

4053

.fd=pipefds[0],

4054

.quit_now=&quit_now,

4055

.password=&password,

4056

.filename=task.filename,

4057

.cancelled_filenames=task.cancelled_filenames,

4058

.current_time=&current_time,

4059

.mandos_client_exited=&mandos_client_exited,

4060

.password_is_read=&password_is_read,

4061

}));

4062

4063

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4064

EPOLLIN | EPOLLRDHUP));

4065

4066

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

4067

}

4068

4069

static void test_read_inotify_event_eof(__attribute__((unused))

4070

test_fixture *fixture,

4071

__attribute__((unused))

4072

gconstpointer user_data){

4073

__attribute__((cleanup(cleanup_close)))

4074

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4075

g_assert_cmpint(epoll_fd, >=, 0);

4076

const mono_microsecs current_time = 0;

4077

4078

int pipefds[2];

4079

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

4080

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

4081

4082

bool quit_now = false;

4083

buffer password = {};

4084

__attribute__((cleanup(cleanup_queue)))

4085

task_queue *queue = create_queue();

4086

g_assert_nonnull(queue);

4087

4088

task_context task = {

4089

.func=read_inotify_event,

4090

.epoll_fd=epoll_fd,

4091

.fd=pipefds[0],

4092

.quit_now=&quit_now,

4093

.password=&password,

4094

.filename=strdup("/nonexistent"),

4095

.cancelled_filenames = &(string_set){},

4096

.notafter=0,

4097

.current_time=&current_time,

4098

};

4099

run_task_with_stderr_to_dev_null(task, queue);

4100

g_assert_true(quit_now);

4101

g_assert_true(queue->next_run == 0);

4102

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

4103

4104

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

4105

4106

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

4107

}

4108

4109

static

4110

void test_read_inotify_event_IN_CLOSE_WRITE(__attribute__((unused))

4111

test_fixture *fixture,

4112

__attribute__((unused))

4113

gconstpointer user_data){

4114

__attribute__((cleanup(cleanup_close)))

4115

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4116

g_assert_cmpint(epoll_fd, >=, 0);

4117

const mono_microsecs current_time = 0;

4118

4119

int pipefds[2];

4120

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

4121

4122

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

4123

const size_t ievent_max_size = (sizeof(struct inotify_event)

4124

+ NAME_MAX + 1);

4125

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4126

struct {

4127

struct inotify_event event;

4128

char name_buffer[NAME_MAX + 1];

4129

} ievent_buffer;

4130

struct inotify_event *const ievent = &ievent_buffer.event;

4131

4132

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

4133

ievent->mask = IN_CLOSE_WRITE;

4134

ievent->len = sizeof(dummy_file_name);

4135

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

4136

const size_t ievent_size = (sizeof(struct inotify_event)

4137

+ sizeof(dummy_file_name));

4138

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

4139

==, ievent_size);

4140

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

4141

4142

bool quit_now = false;

4143

buffer password = {};

4144

bool mandos_client_exited = false;

4145

bool password_is_read = false;

4146

__attribute__((cleanup(cleanup_queue)))

4147

task_queue *queue = create_queue();

4148

g_assert_nonnull(queue);

4149

4150

task_context task = {

4151

.func=read_inotify_event,

4152

.epoll_fd=epoll_fd,

4153

.fd=pipefds[0],

4154

.quit_now=&quit_now,

4155

.password=&password,

4156

.filename=strdup("/nonexistent"),

4157

.cancelled_filenames = &(string_set){},

4158

.notafter=0,

4159

.current_time=&current_time,

4160

.mandos_client_exited=&mandos_client_exited,

4161

.password_is_read=&password_is_read,

4162

};

4163

task.func(task, queue);

4164

g_assert_false(quit_now);

4165

g_assert_true(queue->next_run != 0);

4166

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

4167

4168

g_assert_nonnull(find_matching_task(queue, (task_context){

4169

.func=read_inotify_event,

4170

.epoll_fd=epoll_fd,

4171

.fd=pipefds[0],

4172

.quit_now=&quit_now,

4173

.password=&password,

4174

.filename=task.filename,

4175

.cancelled_filenames=task.cancelled_filenames,

4176

.current_time=&current_time,

4177

.mandos_client_exited=&mandos_client_exited,

4178

.password_is_read=&password_is_read,

4179

}));

4180

4181

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4182

EPOLLIN | EPOLLRDHUP));

4183

4184

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

4185

4186

__attribute__((cleanup(cleanup_string)))

4187

char *filename = NULL;

4188

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

4189

dummy_file_name), >, 0);

4190

g_assert_nonnull(filename);

4191

g_assert_nonnull(find_matching_task(queue, (task_context){

4192

.func=open_and_parse_question,

4193

.epoll_fd=epoll_fd,

4194

.filename=filename,

4195

.question_filename=filename,

4196

.password=&password,

4197

.cancelled_filenames=task.cancelled_filenames,

4198

.current_time=&current_time,

4199

.mandos_client_exited=&mandos_client_exited,

4200

.password_is_read=&password_is_read,

4201

}));

4202

}

4203

4204

static

4205

void test_read_inotify_event_IN_MOVED_TO(__attribute__((unused))

4206

test_fixture *fixture,

4207

__attribute__((unused))

4208

gconstpointer user_data){

4209

__attribute__((cleanup(cleanup_close)))

4210

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4211

g_assert_cmpint(epoll_fd, >=, 0);

4212

const mono_microsecs current_time = 0;

4213

4214

int pipefds[2];

4215

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

4216

4217

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

4218

const size_t ievent_max_size = (sizeof(struct inotify_event)

4219

+ NAME_MAX + 1);

4220

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4221

struct {

4222

struct inotify_event event;

4223

char name_buffer[NAME_MAX + 1];

4224

} ievent_buffer;

4225

struct inotify_event *const ievent = &ievent_buffer.event;

4226

4227

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

4228

ievent->mask = IN_MOVED_TO;

4229

ievent->len = sizeof(dummy_file_name);

4230

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

4231

const size_t ievent_size = (sizeof(struct inotify_event)

4232

+ sizeof(dummy_file_name));

4233

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

4234

==, ievent_size);

4235

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

4236

4237

bool quit_now = false;

4238

buffer password = {};

4239

bool mandos_client_exited = false;

4240

bool password_is_read = false;

4241

__attribute__((cleanup(cleanup_queue)))

4242

task_queue *queue = create_queue();

4243

g_assert_nonnull(queue);

4244

4245

task_context task = {

4246

.func=read_inotify_event,

4247

.epoll_fd=epoll_fd,

4248

.fd=pipefds[0],

4249

.quit_now=&quit_now,

4250

.password=&password,

4251

.filename=strdup("/nonexistent"),

4252

.cancelled_filenames = &(string_set){},

4253

.notafter=0,

4254

.current_time=&current_time,

4255

.mandos_client_exited=&mandos_client_exited,

4256

.password_is_read=&password_is_read,

4257

};

4258

task.func(task, queue);

4259

g_assert_false(quit_now);

4260

g_assert_true(queue->next_run != 0);

4261

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

4262

4263

g_assert_nonnull(find_matching_task(queue, (task_context){

4264

.func=read_inotify_event,

4265

.epoll_fd=epoll_fd,

4266

.fd=pipefds[0],

4267

.quit_now=&quit_now,

4268

.password=&password,

4269

.filename=task.filename,

4270

.cancelled_filenames=task.cancelled_filenames,

4271

.current_time=&current_time,

4272

.mandos_client_exited=&mandos_client_exited,

4273

.password_is_read=&password_is_read,

4274

}));

4275

4276

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4277

EPOLLIN | EPOLLRDHUP));

4278

4279

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

4280

4281

__attribute__((cleanup(cleanup_string)))

4282

char *filename = NULL;

4283

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

4284

dummy_file_name), >, 0);

4285

g_assert_nonnull(filename);

4286

g_assert_nonnull(find_matching_task(queue, (task_context){

4287

.func=open_and_parse_question,

4288

.epoll_fd=epoll_fd,

4289

.filename=filename,

4290

.question_filename=filename,

4291

.password=&password,

4292

.cancelled_filenames=task.cancelled_filenames,

4293

.current_time=&current_time,

4294

.mandos_client_exited=&mandos_client_exited,

4295

.password_is_read=&password_is_read,

4296

}));

4297

}

4298

4299

static

4300

void test_read_inotify_event_IN_MOVED_FROM(__attribute__((unused))

4301

test_fixture *fixture,

4302

__attribute__((unused))

4303

gconstpointer user_data){

4304

__attribute__((cleanup(cleanup_close)))

4305

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4306

g_assert_cmpint(epoll_fd, >=, 0);

4307

__attribute__((cleanup(string_set_clear)))

4308

string_set cancelled_filenames = {};

4309

const mono_microsecs current_time = 0;

4310

4311

int pipefds[2];

4312

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

4313

4314

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

4315

const size_t ievent_max_size = (sizeof(struct inotify_event)

4316

+ NAME_MAX + 1);

4317

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4318

struct {

4319

struct inotify_event event;

4320

char name_buffer[NAME_MAX + 1];

4321

} ievent_buffer;

4322

struct inotify_event *const ievent = &ievent_buffer.event;

4323

4324

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

4325

ievent->mask = IN_MOVED_FROM;

4326

ievent->len = sizeof(dummy_file_name);

4327

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

4328

const size_t ievent_size = (sizeof(struct inotify_event)

4329

+ sizeof(dummy_file_name));

4330

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

4331

==, ievent_size);

4332

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

4333

4334

bool quit_now = false;

4335

buffer password = {};

4336

bool mandos_client_exited = false;

4337

bool password_is_read = false;

4338

__attribute__((cleanup(cleanup_queue)))

4339

task_queue *queue = create_queue();

4340

g_assert_nonnull(queue);

4341

4342

task_context task = {

4343

.func=read_inotify_event,

4344

.epoll_fd=epoll_fd,

4345

.fd=pipefds[0],

4346

.quit_now=&quit_now,

4347

.password=&password,

4348

.filename=strdup("/nonexistent"),

4349

.cancelled_filenames=&cancelled_filenames,

4350

.current_time=&current_time,

4351

.mandos_client_exited=&mandos_client_exited,

4352

.password_is_read=&password_is_read,

4353

};

4354

task.func(task, queue);

4355

g_assert_false(quit_now);

4356

g_assert_true(queue->next_run == 0);

4357

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

4358

4359

g_assert_nonnull(find_matching_task(queue, (task_context){

4360

.func=read_inotify_event,

4361

.epoll_fd=epoll_fd,

4362

.fd=pipefds[0],

4363

.quit_now=&quit_now,

4364

.password=&password,

4365

.filename=task.filename,

4366

.cancelled_filenames=&cancelled_filenames,

4367

.current_time=&current_time,

4368

.mandos_client_exited=&mandos_client_exited,

4369

.password_is_read=&password_is_read,

4370

}));

4371

4372

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4373

EPOLLIN | EPOLLRDHUP));

4374

4375

__attribute__((cleanup(cleanup_string)))

4376

char *filename = NULL;

4377

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

4378

dummy_file_name), >, 0);

4379

g_assert_nonnull(filename);

4380

g_assert_true(string_set_contains(*task.cancelled_filenames,

4381

filename));

4382

}

4383

4384

static void test_read_inotify_event_IN_DELETE(__attribute__((unused))

4385

test_fixture *fixture,

4386

__attribute__((unused))

4387

gconstpointer

4388

user_data){

4389

__attribute__((cleanup(cleanup_close)))

4390

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4391

g_assert_cmpint(epoll_fd, >=, 0);

4392

__attribute__((cleanup(string_set_clear)))

4393

string_set cancelled_filenames = {};

4394

const mono_microsecs current_time = 0;

4395

4396

int pipefds[2];

4397

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

4398

4399

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

4400

const size_t ievent_max_size = (sizeof(struct inotify_event)

4401

+ NAME_MAX + 1);

4402

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4403

struct {

4404

struct inotify_event event;

4405

char name_buffer[NAME_MAX + 1];

4406

} ievent_buffer;

4407

struct inotify_event *const ievent = &ievent_buffer.event;

4408

4409

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

4410

ievent->mask = IN_DELETE;

4411

ievent->len = sizeof(dummy_file_name);

4412

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

4413

const size_t ievent_size = (sizeof(struct inotify_event)

4414

+ sizeof(dummy_file_name));

4415

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

4416

==, ievent_size);

4417

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

4418

4419

bool quit_now = false;

4420

buffer password = {};

4421

bool mandos_client_exited = false;

4422

bool password_is_read = false;

4423

__attribute__((cleanup(cleanup_queue)))

4424

task_queue *queue = create_queue();

4425

g_assert_nonnull(queue);

4426

4427

task_context task = {

4428

.func=read_inotify_event,

4429

.epoll_fd=epoll_fd,

4430

.fd=pipefds[0],

4431

.quit_now=&quit_now,

4432

.password=&password,

4433

.filename=strdup("/nonexistent"),

4434

.cancelled_filenames=&cancelled_filenames,

4435

.current_time=&current_time,

4436

.mandos_client_exited=&mandos_client_exited,

4437

.password_is_read=&password_is_read,

4438

};

4439

task.func(task, queue);

4440

g_assert_false(quit_now);

4441

g_assert_true(queue->next_run == 0);

4442

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

4443

4444

g_assert_nonnull(find_matching_task(queue, (task_context){

4445

.func=read_inotify_event,

4446

.epoll_fd=epoll_fd,

4447

.fd=pipefds[0],

4448

.quit_now=&quit_now,

4449

.password=&password,

4450

.filename=task.filename,

4451

.cancelled_filenames=&cancelled_filenames,

4452

.current_time=&current_time,

4453

.mandos_client_exited=&mandos_client_exited,

4454

.password_is_read=&password_is_read,

4455

}));

4456

4457

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4458

EPOLLIN | EPOLLRDHUP));

4459

4460

__attribute__((cleanup(cleanup_string)))

4461

char *filename = NULL;

4462

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

4463

dummy_file_name), >, 0);

4464

g_assert_nonnull(filename);

4465

g_assert_true(string_set_contains(*task.cancelled_filenames,

4466

filename));

4467

}

4468

4469

static void

4470

test_read_inotify_event_IN_CLOSE_WRITE_badname(__attribute__((unused))

4471

test_fixture *fixture,

4472

__attribute__((unused))

4473

gconstpointer

4474

user_data){

4475

__attribute__((cleanup(cleanup_close)))

4476

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4477

g_assert_cmpint(epoll_fd, >=, 0);

4478

const mono_microsecs current_time = 0;

4479

4480

int pipefds[2];

4481

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

4482

4483

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

4484

const size_t ievent_max_size = (sizeof(struct inotify_event)

4485

+ NAME_MAX + 1);

4486

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4487

struct {

4488

struct inotify_event event;

4489

char name_buffer[NAME_MAX + 1];

4490

} ievent_buffer;

4491

struct inotify_event *const ievent = &ievent_buffer.event;

4492

4493

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

4494

ievent->mask = IN_CLOSE_WRITE;

4495

ievent->len = sizeof(dummy_file_name);

4496

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

4497

const size_t ievent_size = (sizeof(struct inotify_event)

4498

+ sizeof(dummy_file_name));

4499

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

4500

==, ievent_size);

4501

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

4502

4503

bool quit_now = false;

4504

buffer password = {};

4505

bool mandos_client_exited = false;

4506

bool password_is_read = false;

4507

__attribute__((cleanup(cleanup_queue)))

4508

task_queue *queue = create_queue();

4509

g_assert_nonnull(queue);

4510

4511

task_context task = {

4512

.func=read_inotify_event,

4513

.epoll_fd=epoll_fd,

4514

.fd=pipefds[0],

4515

.quit_now=&quit_now,

4516

.password=&password,

4517

.filename=strdup("/nonexistent"),

4518

.cancelled_filenames = &(string_set){},

4519

.notafter=0,

4520

.current_time=&current_time,

4521

.mandos_client_exited=&mandos_client_exited,

4522

.password_is_read=&password_is_read,

4523

};

4524

task.func(task, queue);

4525

g_assert_false(quit_now);

4526

g_assert_true(queue->next_run == 0);

4527

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

4528

4529

g_assert_nonnull(find_matching_task(queue, (task_context){

4530

.func=read_inotify_event,

4531

.epoll_fd=epoll_fd,

4532

.fd=pipefds[0],

4533

.quit_now=&quit_now,

4534

.password=&password,

4535

.filename=task.filename,

4536

.cancelled_filenames=task.cancelled_filenames,

4537

.current_time=&current_time,

4538

.mandos_client_exited=&mandos_client_exited,

4539

.password_is_read=&password_is_read,

4540

}));

4541

4542

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4543

EPOLLIN | EPOLLRDHUP));

4544

}

4545

4546

static void

4547

test_read_inotify_event_IN_MOVED_TO_badname(__attribute__((unused))

4548

test_fixture *fixture,

4549

__attribute__((unused))

4550

gconstpointer user_data){

4551

__attribute__((cleanup(cleanup_close)))

4552

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4553

g_assert_cmpint(epoll_fd, >=, 0);

4554

const mono_microsecs current_time = 0;

4555

4556

int pipefds[2];

4557

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

4558

4559

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

4560

const size_t ievent_max_size = (sizeof(struct inotify_event)

4561

+ NAME_MAX + 1);

4562

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4563

struct {

4564

struct inotify_event event;

4565

char name_buffer[NAME_MAX + 1];

4566

} ievent_buffer;

4567

struct inotify_event *const ievent = &ievent_buffer.event;

4568

4569

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

4570

ievent->mask = IN_MOVED_TO;

4571

ievent->len = sizeof(dummy_file_name);

4572

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

4573

const size_t ievent_size = (sizeof(struct inotify_event)

4574

+ sizeof(dummy_file_name));

4575

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

4576

==, ievent_size);

4577

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

4578

4579

bool quit_now = false;

4580

buffer password = {};

4581

bool mandos_client_exited = false;

4582

bool password_is_read = false;

4583

__attribute__((cleanup(cleanup_queue)))

4584

task_queue *queue = create_queue();

4585

g_assert_nonnull(queue);

4586

4587

task_context task = {

4588

.func=read_inotify_event,

4589

.epoll_fd=epoll_fd,

4590

.fd=pipefds[0],

4591

.quit_now=&quit_now,

4592

.password=&password,

4593

.filename=strdup("/nonexistent"),

4594

.cancelled_filenames = &(string_set){},

4595

.notafter=0,

4596

.current_time=&current_time,

4597

.mandos_client_exited=&mandos_client_exited,

4598

.password_is_read=&password_is_read,

4599

};

4600

task.func(task, queue);

4601

g_assert_false(quit_now);

4602

g_assert_true(queue->next_run == 0);

4603

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

4604

4605

g_assert_nonnull(find_matching_task(queue, (task_context){

4606

.func=read_inotify_event,

4607

.epoll_fd=epoll_fd,

4608

.fd=pipefds[0],

4609

.quit_now=&quit_now,

4610

.password=&password,

4611

.filename=task.filename,

4612

.cancelled_filenames=task.cancelled_filenames,

4613

.current_time=&current_time,

4614

.mandos_client_exited=&mandos_client_exited,

4615

.password_is_read=&password_is_read,

4616

}));

4617

4618

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4619

EPOLLIN | EPOLLRDHUP));

4620

}

4621

4622

static void

4623

test_read_inotify_event_IN_MOVED_FROM_badname(__attribute__((unused))

4624

test_fixture *fixture,

4625

__attribute__((unused))

4626

gconstpointer

4627

user_data){

4628

__attribute__((cleanup(cleanup_close)))

4629

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4630

g_assert_cmpint(epoll_fd, >=, 0);

4631

__attribute__((cleanup(string_set_clear)))

4632

string_set cancelled_filenames = {};

4633

const mono_microsecs current_time = 0;

4634

4635

int pipefds[2];

4636

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

4637

4638

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

4639

const size_t ievent_max_size = (sizeof(struct inotify_event)

4640

+ NAME_MAX + 1);

4641

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4642

struct {

4643

struct inotify_event event;

4644

char name_buffer[NAME_MAX + 1];

4645

} ievent_buffer;

4646

struct inotify_event *const ievent = &ievent_buffer.event;

4647

4648

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

4649

ievent->mask = IN_MOVED_FROM;

4650

ievent->len = sizeof(dummy_file_name);

4651

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

4652

const size_t ievent_size = (sizeof(struct inotify_event)

4653

+ sizeof(dummy_file_name));

4654

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

4655

==, ievent_size);

4656

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

4657

4658

bool quit_now = false;

4659

buffer password = {};

4660

bool mandos_client_exited = false;

4661

bool password_is_read = false;

4662

__attribute__((cleanup(cleanup_queue)))

4663

task_queue *queue = create_queue();

4664

g_assert_nonnull(queue);

4665

4666

task_context task = {

4667

.func=read_inotify_event,

4668

.epoll_fd=epoll_fd,

4669

.fd=pipefds[0],

4670

.quit_now=&quit_now,

4671

.password=&password,

4672

.filename=strdup("/nonexistent"),

4673

.cancelled_filenames=&cancelled_filenames,

4674

.current_time=&current_time,

4675

.mandos_client_exited=&mandos_client_exited,

4676

.password_is_read=&password_is_read,

4677

};

4678

task.func(task, queue);

4679

g_assert_false(quit_now);

4680

g_assert_true(queue->next_run == 0);

4681

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

4682

4683

g_assert_nonnull(find_matching_task(queue, (task_context){

4684

.func=read_inotify_event,

4685

.epoll_fd=epoll_fd,

4686

.fd=pipefds[0],

4687

.quit_now=&quit_now,

4688

.password=&password,

4689

.filename=task.filename,

4690

.cancelled_filenames=&cancelled_filenames,

4691

.current_time=&current_time,

4692

.mandos_client_exited=&mandos_client_exited,

4693

.password_is_read=&password_is_read,

4694

}));

4695

4696

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4697

EPOLLIN | EPOLLRDHUP));

4698

4699

__attribute__((cleanup(cleanup_string)))

4700

char *filename = NULL;

4701

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

4702

dummy_file_name), >, 0);

4703

g_assert_nonnull(filename);

4704

g_assert_false(string_set_contains(cancelled_filenames, filename));

4705

}

4706

4707

static

4708

void test_read_inotify_event_IN_DELETE_badname(__attribute__((unused))

4709

test_fixture *fixture,

4710

__attribute__((unused))

4711

gconstpointer

4712

user_data){

4713

__attribute__((cleanup(cleanup_close)))

4714

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4715

g_assert_cmpint(epoll_fd, >=, 0);

4716

__attribute__((cleanup(string_set_clear)))

4717

string_set cancelled_filenames = {};

4718

const mono_microsecs current_time = 0;

4719

4720

int pipefds[2];

4721

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

4722

4723

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

4724

const size_t ievent_max_size = (sizeof(struct inotify_event)

4725

+ NAME_MAX + 1);

4726

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4727

struct {

4728

struct inotify_event event;

4729

char name_buffer[NAME_MAX + 1];

4730

} ievent_buffer;

4731

struct inotify_event *const ievent = &ievent_buffer.event;

4732

4733

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

4734

ievent->mask = IN_DELETE;

4735

ievent->len = sizeof(dummy_file_name);

4736

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

4737

const size_t ievent_size = (sizeof(struct inotify_event)

4738

+ sizeof(dummy_file_name));

4739

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

4740

==, ievent_size);

4741

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

4742

4743

bool quit_now = false;

4744

buffer password = {};

4745

bool mandos_client_exited = false;

4746

bool password_is_read = false;

4747

__attribute__((cleanup(cleanup_queue)))

4748

task_queue *queue = create_queue();

4749

g_assert_nonnull(queue);

4750

4751

task_context task = {

4752

.func=read_inotify_event,

4753

.epoll_fd=epoll_fd,

4754

.fd=pipefds[0],

4755

.quit_now=&quit_now,

4756

.password=&password,

4757

.filename=strdup("/nonexistent"),

4758

.cancelled_filenames=&cancelled_filenames,

4759

.current_time=&current_time,

4760

.mandos_client_exited=&mandos_client_exited,

4761

.password_is_read=&password_is_read,

4762

};

4763

task.func(task, queue);

4764

g_assert_false(quit_now);

4765

g_assert_true(queue->next_run == 0);

4766

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

4767

4768

g_assert_nonnull(find_matching_task(queue, (task_context){

4769

.func=read_inotify_event,

4770

.epoll_fd=epoll_fd,

4771

.fd=pipefds[0],

4772

.quit_now=&quit_now,

4773

.password=&password,

4774

.filename=task.filename,

4775

.cancelled_filenames=&cancelled_filenames,

4776

.current_time=&current_time,

4777

.mandos_client_exited=&mandos_client_exited,

4778

.password_is_read=&password_is_read,

4779

}));

4780

4781

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4782

EPOLLIN | EPOLLRDHUP));

4783

4784

__attribute__((cleanup(cleanup_string)))

4785

char *filename = NULL;

4786

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

4787

dummy_file_name), >, 0);

4788

g_assert_nonnull(filename);

4789

g_assert_false(string_set_contains(cancelled_filenames, filename));

4790

}

4791

4792

static

4793

void test_open_and_parse_question_ENOENT(__attribute__((unused))

4794

test_fixture *fixture,

4795

__attribute__((unused))

4796

gconstpointer user_data){

4797

__attribute__((cleanup(cleanup_close)))

4798

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4799

g_assert_cmpint(epoll_fd, >=, 0);

4800

__attribute__((cleanup(string_set_clear)))

4801

string_set cancelled_filenames = {};

4802

bool mandos_client_exited = false;

4803

bool password_is_read = false;

4804

__attribute__((cleanup(cleanup_queue)))

4805

task_queue *queue = create_queue();

4806

g_assert_nonnull(queue);

4807

4808

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

4809

g_assert_nonnull(filename);

4810

task_context task = {

4811

.func=open_and_parse_question,

4812

.question_filename=filename,

4813

.epoll_fd=epoll_fd,

4814

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

4815

.filename=filename,

4816

.cancelled_filenames=&cancelled_filenames,

4817

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

4818

.mandos_client_exited=&mandos_client_exited,

4819

.password_is_read=&password_is_read,

4820

};

4821

task.func(task, queue);

4822

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

4823

}

4824

4825

static void test_open_and_parse_question_EIO(__attribute__((unused))

4826

test_fixture *fixture,

4827

__attribute__((unused))

4828

gconstpointer user_data){

4829

__attribute__((cleanup(cleanup_close)))

4830

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4831

g_assert_cmpint(epoll_fd, >=, 0);

4832

__attribute__((cleanup(string_set_clear)))

4833

string_set cancelled_filenames = {};

4834

buffer password = {};

4835

bool mandos_client_exited = false;

4836

bool password_is_read = false;

4837

__attribute__((cleanup(cleanup_queue)))

4838

task_queue *queue = create_queue();

4839

g_assert_nonnull(queue);

4840

const mono_microsecs current_time = 0;

4841

4842

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

4843

task_context task = {

4844

.func=open_and_parse_question,

4845

.question_filename=filename,

4846

.epoll_fd=epoll_fd,

4847

.password=&password,

4848

.filename=filename,

4849

.cancelled_filenames=&cancelled_filenames,

4850

.current_time=&current_time,

4851

.mandos_client_exited=&mandos_client_exited,

4852

.password_is_read=&password_is_read,

4853

};

4854

run_task_with_stderr_to_dev_null(task, queue);

4855

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

4856

}

4857

4858

static void

4859

test_open_and_parse_question_parse_error(__attribute__((unused))

4860

test_fixture *fixture,

4861

__attribute__((unused))

4862

gconstpointer user_data){

4863

__attribute__((cleanup(cleanup_close)))

4864

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4865

g_assert_cmpint(epoll_fd, >=, 0);

4866

__attribute__((cleanup(string_set_clear)))

4867

string_set cancelled_filenames = {};

4868

__attribute__((cleanup(cleanup_queue)))

4869

task_queue *queue = create_queue();

4870

g_assert_nonnull(queue);

4871

4872

__attribute__((cleanup(cleanup_string)))

4873

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

4874

g_assert_nonnull(tempfilename);

4875

int tempfile = mkostemp(tempfilename, O_CLOEXEC);

4876

g_assert_cmpint(tempfile, >, 0);

4877

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

4878

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

4879

==, sizeof(bad_data));

4880

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

4881

4882

char *const filename = strdup(tempfilename);

4883

g_assert_nonnull(filename);

4884

task_context task = {

4885

.func=open_and_parse_question,

4886

.question_filename=filename,

4887

.epoll_fd=epoll_fd,

4888

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

4889

.filename=filename,

4890

.cancelled_filenames=&cancelled_filenames,

4891

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

4892

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

4893

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

4894

};

4895

run_task_with_stderr_to_dev_null(task, queue);

4896

4897

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

4898

4899

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

4900

}

4901

4902

static

4903

void test_open_and_parse_question_nosocket(__attribute__((unused))

4904

test_fixture *fixture,

4905

__attribute__((unused))

4906

gconstpointer user_data){

4907

__attribute__((cleanup(cleanup_close)))

4908

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4909

g_assert_cmpint(epoll_fd, >=, 0);

4910

__attribute__((cleanup(string_set_clear)))

4911

string_set cancelled_filenames = {};

4912

__attribute__((cleanup(cleanup_queue)))

4913

task_queue *queue = create_queue();

4914

g_assert_nonnull(queue);

4915

4916

__attribute__((cleanup(cleanup_string)))

4917

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

4918

g_assert_nonnull(tempfilename);

4919

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

4920

g_assert_cmpint(questionfile, >, 0);

4921

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

4922

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

4923

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

4924

4925

char *const filename = strdup(tempfilename);

4926

g_assert_nonnull(filename);

4927

task_context task = {

4928

.func=open_and_parse_question,

4929

.question_filename=filename,

4930

.epoll_fd=epoll_fd,

4931

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

4932

.filename=filename,

4933

.cancelled_filenames=&cancelled_filenames,

4934

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

4935

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

4936

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

4937

};

4938

run_task_with_stderr_to_dev_null(task, queue);

4939

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

4940

4941

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

4942

}

4943

4944

static

4945

void test_open_and_parse_question_badsocket(__attribute__((unused))

4946

test_fixture *fixture,

4947

__attribute__((unused))

4948

gconstpointer user_data){

4949

__attribute__((cleanup(cleanup_close)))

4950

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4951

g_assert_cmpint(epoll_fd, >=, 0);

4952

__attribute__((cleanup(string_set_clear)))

4953

string_set cancelled_filenames = {};

4954

__attribute__((cleanup(cleanup_queue)))

4955

task_queue *queue = create_queue();

4956

g_assert_nonnull(queue);

4957

4958

__attribute__((cleanup(cleanup_string)))

4959

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

4960

g_assert_nonnull(tempfilename);

4961

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

4962

g_assert_cmpint(questionfile, >, 0);

4963

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

4964

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

4965

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

4966

4967

char *const filename = strdup(tempfilename);

4968

g_assert_nonnull(filename);

4969

task_context task = {

4970

.func=open_and_parse_question,

4971

.question_filename=filename,

4972

.epoll_fd=epoll_fd,

4973

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

4974

.filename=filename,

4975

.cancelled_filenames=&cancelled_filenames,

4976

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

4977

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

4978

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

4979

};

4980

run_task_with_stderr_to_dev_null(task, queue);

4981

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

4982

4983

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

4984

}

4985

4986

static

4987

void test_open_and_parse_question_nopid(__attribute__((unused))

4988

test_fixture *fixture,

4989

__attribute__((unused))

4990

gconstpointer user_data){

4991

__attribute__((cleanup(cleanup_close)))

4992

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4993

g_assert_cmpint(epoll_fd, >=, 0);

4994

__attribute__((cleanup(string_set_clear)))

4995

string_set cancelled_filenames = {};

4996

__attribute__((cleanup(cleanup_queue)))

4997

task_queue *queue = create_queue();

4998

g_assert_nonnull(queue);

4999

5000

__attribute__((cleanup(cleanup_string)))

5001

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

5002

g_assert_nonnull(tempfilename);

5003

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5004

g_assert_cmpint(questionfile, >, 0);

5005

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

5006

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

5007

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

5008

5009

char *const filename = strdup(tempfilename);

5010

g_assert_nonnull(filename);

5011

task_context task = {

5012

.func=open_and_parse_question,

5013

.question_filename=filename,

5014

.epoll_fd=epoll_fd,

5015

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

5016

.filename=filename,

5017

.cancelled_filenames=&cancelled_filenames,

5018

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

5019

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

5020

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

5021

};

5022

run_task_with_stderr_to_dev_null(task, queue);

5023

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

5024

5025

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

5026

}

5027

5028

static

5029

void test_open_and_parse_question_badpid(__attribute__((unused))

5030

test_fixture *fixture,

5031

__attribute__((unused))

5032

gconstpointer user_data){

5033

__attribute__((cleanup(cleanup_close)))

5034

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5035

g_assert_cmpint(epoll_fd, >=, 0);

5036

__attribute__((cleanup(string_set_clear)))

5037

string_set cancelled_filenames = {};

5038

__attribute__((cleanup(cleanup_queue)))

5039

task_queue *queue = create_queue();

5040

g_assert_nonnull(queue);

5041

5042

__attribute__((cleanup(cleanup_string)))

5043

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

5044

g_assert_nonnull(tempfilename);

5045

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5046

g_assert_cmpint(questionfile, >, 0);

5047

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

5048

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

5049

>, 0);

5050

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

5051

5052

char *const filename = strdup(tempfilename);

5053

g_assert_nonnull(filename);

5054

task_context task = {

5055

.func=open_and_parse_question,

5056

.question_filename=filename,

5057

.epoll_fd=epoll_fd,

5058

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

5059

.filename=filename,

5060

.cancelled_filenames=&cancelled_filenames,

5061

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

5062

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

5063

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

5064

};

5065

run_task_with_stderr_to_dev_null(task, queue);

5066

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

5067

5068

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

5069

}

5070

5071

static void

5072

test_open_and_parse_question_noexist_pid(__attribute__((unused))

5073

test_fixture *fixture,

5074

__attribute__((unused))

5075

gconstpointer user_data){

5076

__attribute__((cleanup(cleanup_close)))

5077

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5078

g_assert_cmpint(epoll_fd, >=, 0);

5079

__attribute__((cleanup(string_set_clear)))

5080

string_set cancelled_filenames = {};

5081

buffer password = {};

5082

bool mandos_client_exited = false;

5083

bool password_is_read = false;

5084

__attribute__((cleanup(cleanup_queue)))

5085

task_queue *queue = create_queue();

5086

g_assert_nonnull(queue);

5087

const mono_microsecs current_time = 0;

5088

5089

/* Find value of sysctl kernel.pid_max */

5090

uintmax_t pid_max = 0;

5091

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

5092

g_assert_nonnull(sysctl_pid_max);

5093

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

5094

==, 1);

5095

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

5096

5097

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

5098

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

5099

5100

__attribute__((cleanup(cleanup_string)))

5101

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

5102

g_assert_nonnull(tempfilename);

5103

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5104

g_assert_cmpint(questionfile, >, 0);

5105

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

5106

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

5107

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

5108

>, 0);

5109

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

5110

5111

char *const question_filename = strdup(tempfilename);

5112

g_assert_nonnull(question_filename);

5113

task_context task = {

5114

.func=open_and_parse_question,

5115

.question_filename=question_filename,

5116

.epoll_fd=epoll_fd,

5117

.password=&password,

5118

.filename=question_filename,

5119

.cancelled_filenames=&cancelled_filenames,

5120

.current_time=&current_time,

5121

.mandos_client_exited=&mandos_client_exited,

5122

.password_is_read=&password_is_read,

5123

};

5124

run_task_with_stderr_to_dev_null(task, queue);

5125

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

5126

5127

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

5128

}

5129

5130

static void

5131

test_open_and_parse_question_no_notafter(__attribute__((unused))

5132

test_fixture *fixture,

5133

__attribute__((unused))

5134

gconstpointer user_data){

5135

__attribute__((cleanup(cleanup_close)))

5136

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5137

g_assert_cmpint(epoll_fd, >=, 0);

5138

__attribute__((cleanup(string_set_clear)))

5139

string_set cancelled_filenames = {};

5140

buffer password = {};

5141

bool mandos_client_exited = false;

5142

bool password_is_read = false;

5143

__attribute__((cleanup(cleanup_queue)))

5144

task_queue *queue = create_queue();

5145

g_assert_nonnull(queue);

5146

const mono_microsecs current_time = 0;

5147

5148

__attribute__((cleanup(cleanup_string)))

5149

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

5150

g_assert_nonnull(tempfilename);

5151

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5152

g_assert_cmpint(questionfile, >, 0);

5153

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

5154

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

5155

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

5156

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

5157

5158

char *const filename = strdup(tempfilename);

5159

g_assert_nonnull(filename);

5160

task_context task = {

5161

.func=open_and_parse_question,

5162

.question_filename=filename,

5163

.epoll_fd=epoll_fd,

5164

.password=&password,

5165

.filename=filename,

5166

.cancelled_filenames=&cancelled_filenames,

5167

.current_time=&current_time,

5168

.mandos_client_exited=&mandos_client_exited,

5169

.password_is_read=&password_is_read,

5170

};

5171

task.func(task, queue);

5172

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

5173

5174

__attribute__((cleanup(cleanup_string)))

5175

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

5176

g_assert_nonnull(socket_filename);

5177

g_assert_nonnull(find_matching_task(queue, (task_context){

5178

.func=connect_question_socket,

5179

.question_filename=tempfilename,

5180

.filename=socket_filename,

5181

.epoll_fd=epoll_fd,

5182

.password=&password,

5183

.current_time=&current_time,

5184

.mandos_client_exited=&mandos_client_exited,

5185

.password_is_read=&password_is_read,

5186

}));

5187

5188

g_assert_true(queue->next_run != 0);

5189

5190

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

5191

}

5192

5193

static void

5194

test_open_and_parse_question_bad_notafter(__attribute__((unused))

5195

test_fixture *fixture,

5196

__attribute__((unused))

5197

gconstpointer user_data){

5198

__attribute__((cleanup(cleanup_close)))

5199

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5200

g_assert_cmpint(epoll_fd, >=, 0);

5201

__attribute__((cleanup(string_set_clear)))

5202

string_set cancelled_filenames = {};

5203

buffer password = {};

5204

bool mandos_client_exited = false;

5205

bool password_is_read = false;

5206

__attribute__((cleanup(cleanup_queue)))

5207

task_queue *queue = create_queue();

5208

g_assert_nonnull(queue);

5209

const mono_microsecs current_time = 0;

5210

5211

__attribute__((cleanup(cleanup_string)))

5212

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

5213

g_assert_nonnull(tempfilename);

5214

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5215

g_assert_cmpint(questionfile, >, 0);

5216

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

5217

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

5218

PRIuMAX "\nNotAfter=\n",

5219

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

5220

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

5221

5222

char *const filename = strdup(tempfilename);

5223

g_assert_nonnull(filename);

5224

task_context task = {

5225

.func=open_and_parse_question,

5226

.question_filename=filename,

5227

.epoll_fd=epoll_fd,

5228

.password=&password,

5229

.filename=filename,

5230

.cancelled_filenames=&cancelled_filenames,

5231

.current_time=&current_time,

5232

.mandos_client_exited=&mandos_client_exited,

5233

.password_is_read=&password_is_read,

5234

};

5235

run_task_with_stderr_to_dev_null(task, queue);

5236

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

5237

5238

__attribute__((cleanup(cleanup_string)))

5239

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

5240

g_assert_nonnull(find_matching_task(queue, (task_context){

5241

.func=connect_question_socket,

5242

.question_filename=tempfilename,

5243

.filename=socket_filename,

5244

.epoll_fd=epoll_fd,

5245

.password=&password,

5246

.current_time=&current_time,

5247

.mandos_client_exited=&mandos_client_exited,

5248

.password_is_read=&password_is_read,

5249

}));

5250

g_assert_true(queue->next_run != 0);

5251

5252

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

5253

}

5254

5255

static

5256

void assert_open_and_parse_question_with_notafter(const mono_microsecs

5257

current_time,

5258

const mono_microsecs

5259

notafter,

5260

const mono_microsecs

5261

next_queue_run){

5262

__attribute__((cleanup(cleanup_close)))

5263

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5264

g_assert_cmpint(epoll_fd, >=, 0);

5265

__attribute__((cleanup(string_set_clear)))

5266

string_set cancelled_filenames = {};

5267

buffer password = {};

5268

bool mandos_client_exited = false;

5269

bool password_is_read = false;

5270

__attribute__((cleanup(cleanup_queue)))

5271

task_queue *queue = create_queue();

5272

g_assert_nonnull(queue);

5273

queue->next_run = next_queue_run;

5274

5275

__attribute__((cleanup(cleanup_string)))

5276

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

5277

g_assert_nonnull(tempfilename);

5278

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5279

g_assert_cmpint(questionfile, >, 0);

5280

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

5281

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

5282

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

5283

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

5284

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

5285

5286

char *const filename = strdup(tempfilename);

5287

g_assert_nonnull(filename);

5288

task_context task = {

5289

.func=open_and_parse_question,

5290

.question_filename=filename,

5291

.epoll_fd=epoll_fd,

5292

.password=&password,

5293

.filename=filename,

5294

.cancelled_filenames=&cancelled_filenames,

5295

.current_time=&current_time,

5296

.mandos_client_exited=&mandos_client_exited,

5297

.password_is_read=&password_is_read,

5298

};

5299

task.func(task, queue);

5300

5301

if(queue->length >= 1){

5302

__attribute__((cleanup(cleanup_string)))

5303

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

5304

g_assert_nonnull(find_matching_task(queue, (task_context){

5305

.func=connect_question_socket,

5306

.filename=socket_filename,

5307

.epoll_fd=epoll_fd,

5308

.password=&password,

5309

.current_time=&current_time,

5310

.cancelled_filenames=&cancelled_filenames,

5311

.mandos_client_exited=&mandos_client_exited,

5312

.password_is_read=&password_is_read,

5313

}));

5314

g_assert_true(queue->next_run != 0);

5315

}

5316

5317

if(notafter == 0){

5318

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

5319

} else if(current_time >= notafter) {

5320

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

5321

} else {

5322

g_assert_nonnull(find_matching_task(queue, (task_context){

5323

.func=cancel_old_question,

5324

.question_filename=tempfilename,

5325

.filename=tempfilename,

5326

.notafter=notafter,

5327

.cancelled_filenames=&cancelled_filenames,

5328

.current_time=&current_time,

5329

}));

5330

}

5331

g_assert_true(queue->next_run == 1);

5332

5333

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

5334

}

5335

5336

static void

5337

test_open_and_parse_question_notafter_0(__attribute__((unused))

5338

test_fixture *fixture,

5339

__attribute__((unused))

5340

gconstpointer user_data){

5341

/* current_time, notafter, next_queue_run */

5342

assert_open_and_parse_question_with_notafter(0, 0, 0);

5343

}

5344

5345

static void

5346

test_open_and_parse_question_notafter_1(__attribute__((unused))

5347

test_fixture *fixture,

5348

__attribute__((unused))

5349

gconstpointer user_data){

5350

/* current_time, notafter, next_queue_run */

5351

assert_open_and_parse_question_with_notafter(0, 1, 0);

5352

}

5353

5354

static void

5355

test_open_and_parse_question_notafter_1_1(__attribute__((unused))

5356

test_fixture *fixture,

5357

__attribute__((unused))

5358

gconstpointer user_data){

5359

/* current_time, notafter, next_queue_run */

5360

assert_open_and_parse_question_with_notafter(0, 1, 1);

5361

}

5362

5363

static void

5364

test_open_and_parse_question_notafter_1_2(__attribute__((unused))

5365

test_fixture *fixture,

5366

__attribute__((unused))

5367

gconstpointer user_data){

5368

/* current_time, notafter, next_queue_run */

5369

assert_open_and_parse_question_with_notafter(0, 1, 2);

5370

}

5371

5372

static void

5373

test_open_and_parse_question_equal_notafter(__attribute__((unused))

5374

test_fixture *fixture,

5375

__attribute__((unused))

5376

gconstpointer user_data){

5377

/* current_time, notafter, next_queue_run */

5378

assert_open_and_parse_question_with_notafter(1, 1, 0);

5379

}

5380

5381

static void

5382

test_open_and_parse_question_late_notafter(__attribute__((unused))

5383

test_fixture *fixture,

5384

__attribute__((unused))

5385

gconstpointer user_data){

5386

/* current_time, notafter, next_queue_run */

5387

assert_open_and_parse_question_with_notafter(2, 1, 0);

5388

}

5389

5390

static void assert_cancel_old_question_param(const mono_microsecs

5391

next_queue_run,

5392

const mono_microsecs

5393

notafter,

5394

const mono_microsecs

5395

current_time,

5396

const mono_microsecs

5397

next_set_to){

5398

__attribute__((cleanup(string_set_clear)))

5399

string_set cancelled_filenames = {};

5400

__attribute__((cleanup(cleanup_queue)))

5401

task_queue *queue = create_queue();

5402

g_assert_nonnull(queue);

5403

queue->next_run = next_queue_run;

5404

5405

char *const question_filename = strdup("/nonexistent");

5406

g_assert_nonnull(question_filename);

5407

task_context task = {

5408

.func=cancel_old_question,

5409

.question_filename=question_filename,

5410

.filename=question_filename,

5411

.notafter=notafter,

5412

.cancelled_filenames=&cancelled_filenames,

5413

.current_time=&current_time,

5414

};

5415

task.func(task, queue);

5416

5417

if(current_time >= notafter){

5418

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5419

g_assert_true(string_set_contains(cancelled_filenames,

5420

"/nonexistent"));

5421

} else {

5422

g_assert_nonnull(find_matching_task(queue, (task_context){

5423

.func=cancel_old_question,

5424

.question_filename=question_filename,

5425

.filename=question_filename,

5426

.notafter=notafter,

5427

.cancelled_filenames=&cancelled_filenames,

5428

.current_time=&current_time,

5429

}));

5430

5431

g_assert_false(string_set_contains(cancelled_filenames,

5432

question_filename));

5433

}

5434

g_assert_cmpuint((unsigned int)queue->next_run, ==,

5435

(unsigned int)next_set_to);

5436

}

5437

5438

static void test_cancel_old_question_0_1_2(__attribute__((unused))

5439

test_fixture *fixture,

5440

__attribute__((unused))

5441

gconstpointer user_data){

5442

/* next_queue_run unset,

5443

cancellation should happen because time has come,

5444

next_queue_run should be unchanged */

5445

/* next_queue_run, notafter, current_time, next_set_to */

5446

assert_cancel_old_question_param(0, 1, 2, 0);

5447

}

5448

5449

static void test_cancel_old_question_0_2_1(__attribute__((unused))

5450

test_fixture *fixture,

5451

__attribute__((unused))

5452

gconstpointer user_data){

5453

/* If next_queue_run is 0, meaning unset, and notafter is 2,

5454

and current_time is not yet notafter or greater,

5455

update value of next_queue_run to value of notafter */

5456

/* next_queue_run, notafter, current_time, next_set_to */

5457

assert_cancel_old_question_param(0, 2, 1, 2);

5458

}

5459

5460

static void test_cancel_old_question_1_2_3(__attribute__((unused))

5461

test_fixture *fixture,

5462

__attribute__((unused))

5463

gconstpointer user_data){

5464

/* next_queue_run 1,

5465

cancellation should happen because time has come,

5466

next_queue_run should be unchanged */

5467

/* next_queue_run, notafter, current_time, next_set_to */

5468

assert_cancel_old_question_param(1, 2, 3, 1);

5469

}

5470

5471

static void test_cancel_old_question_1_3_2(__attribute__((unused))

5472

test_fixture *fixture,

5473

__attribute__((unused))

5474

gconstpointer user_data){

5475

/* If next_queue_run is set,

5476

and current_time is not yet notafter or greater,

5477

and notafter is larger than next_queue_run

5478

next_queue_run should be unchanged */

5479

/* next_queue_run, notafter, current_time, next_set_to */

5480

assert_cancel_old_question_param(1, 3, 2, 1);

5481

}

5482

5483

static void test_cancel_old_question_2_1_3(__attribute__((unused))

5484

test_fixture *fixture,

5485

__attribute__((unused))

5486

gconstpointer user_data){

5487

/* next_queue_run 2,

5488

cancellation should happen because time has come,

5489

next_queue_run should be unchanged */

5490

/* next_queue_run, notafter, current_time, next_set_to */

5491

assert_cancel_old_question_param(2, 1, 3, 2);

5492

}

5493

5494

static void test_cancel_old_question_2_3_1(__attribute__((unused))

5495

test_fixture *fixture,

5496

__attribute__((unused))

5497

gconstpointer user_data){

5498

/* If next_queue_run is set,

5499

and current_time is not yet notafter or greater,

5500

and notafter is larger than next_queue_run

5501

next_queue_run should be unchanged */

5502

/* next_queue_run, notafter, current_time, next_set_to */

5503

assert_cancel_old_question_param(2, 3, 1, 2);

5504

}

5505

5506

static void test_cancel_old_question_3_1_2(__attribute__((unused))

5507

test_fixture *fixture,

5508

__attribute__((unused))

5509

gconstpointer user_data){

5510

/* next_queue_run 3,

5511

cancellation should happen because time has come,

5512

next_queue_run should be unchanged */

5513

/* next_queue_run, notafter, current_time, next_set_to */

5514

assert_cancel_old_question_param(3, 1, 2, 3);

5515

}

5516

5517

static void test_cancel_old_question_3_2_1(__attribute__((unused))

5518

test_fixture *fixture,

5519

__attribute__((unused))

5520

gconstpointer user_data){

5521

/* If next_queue_run is set,

5522

and current_time is not yet notafter or greater,

5523

and notafter is smaller than next_queue_run

5524

update value of next_queue_run to value of notafter */

5525

/* next_queue_run, notafter, current_time, next_set_to */

5526

assert_cancel_old_question_param(3, 2, 1, 2);

5527

}

5528

5529

static void

5530

test_connect_question_socket_name_too_long(__attribute__((unused))

5531

test_fixture *fixture,

5532

__attribute__((unused))

5533

gconstpointer user_data){

5534

__attribute__((cleanup(cleanup_close)))

5535

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5536

g_assert_cmpint(epoll_fd, >=, 0);

5537

const char question_filename[] = "/nonexistent/question";

5538

__attribute__((cleanup(string_set_clear)))

5539

string_set cancelled_filenames = {};

5540

__attribute__((cleanup(cleanup_queue)))

5541

task_queue *queue = create_queue();

5542

g_assert_nonnull(queue);

5543

__attribute__((cleanup(cleanup_string)))

5544

char *tempdir = make_temporary_directory();

5545

g_assert_nonnull(tempdir);

5546

struct sockaddr_un unix_socket = { .sun_family=AF_LOCAL };

5547

char socket_name[sizeof(unix_socket.sun_path)];

5548

memset(socket_name, 'x', sizeof(socket_name));

5549

socket_name[sizeof(socket_name)-1] = '\0';

5550

char *filename = NULL;

5551

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5552

>, 0);

5553

g_assert_nonnull(filename);

5554

5555

task_context task = {

5556

.func=connect_question_socket,

5557

.question_filename=strdup(question_filename),

5558

.epoll_fd=epoll_fd,

5559

.password=(buffer[]){{}},

5560

.filename=filename,

5561

.cancelled_filenames=&cancelled_filenames,

5562

.mandos_client_exited=(bool[]){false},

5563

.password_is_read=(bool[]){false},

5564

.current_time=(mono_microsecs[]){0},

5565

};

5566

g_assert_nonnull(task.question_filename);

5567

run_task_with_stderr_to_dev_null(task, queue);

5568

5569

g_assert_true(string_set_contains(cancelled_filenames,

5570

question_filename));

5571

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5572

g_assert_true(queue->next_run == 0);

5573

5574

g_assert_cmpint(rmdir(tempdir), ==, 0);

5575

}

5576

5577

static

5578

void test_connect_question_socket_connect_fail(__attribute__((unused))

5579

test_fixture *fixture,

5580

__attribute__((unused))

5581

gconstpointer

5582

user_data){

5583

__attribute__((cleanup(cleanup_close)))

5584

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5585

g_assert_cmpint(epoll_fd, >=, 0);

5586

const char question_filename[] = "/nonexistent/question";

5587

__attribute__((cleanup(string_set_clear)))

5588

string_set cancelled_filenames = {};

5589

const mono_microsecs current_time = 3;

5590

__attribute__((cleanup(cleanup_queue)))

5591

task_queue *queue = create_queue();

5592

g_assert_nonnull(queue);

5593

__attribute__((cleanup(cleanup_string)))

5594

char *tempdir = make_temporary_directory();

5595

g_assert_nonnull(tempdir);

5596

char socket_name[] = "nonexistent";

5597

char *filename = NULL;

5598

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5599

>, 0);

5600

g_assert_nonnull(filename);

5601

5602

task_context task = {

5603

.func=connect_question_socket,

5604

.question_filename=strdup(question_filename),

5605

.epoll_fd=epoll_fd,

5606

.password=(buffer[]){{}},

5607

.filename=filename,

5608

.cancelled_filenames=&cancelled_filenames,

5609

.mandos_client_exited=(bool[]){false},

5610

.password_is_read=(bool[]){false},

5611

.current_time=&current_time,

5612

};

5613

g_assert_nonnull(task.question_filename);

5614

run_task_with_stderr_to_dev_null(task, queue);

5615

5616

g_assert_nonnull(find_matching_task(queue, task));

5617

5618

g_assert_false(string_set_contains(cancelled_filenames,

5619

question_filename));

5620

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5621

g_assert_true(queue->next_run == 1000000 + current_time);

5622

5623

g_assert_cmpint(rmdir(tempdir), ==, 0);

5624

}

5625

5626

static

5627

void test_connect_question_socket_bad_epoll(__attribute__((unused))

5628

test_fixture *fixture,

5629

__attribute__((unused))

5630

gconstpointer user_data){

5631

__attribute__((cleanup(cleanup_close)))

5632

const int epoll_fd = open("/dev/null",

5633

O_WRONLY | O_CLOEXEC | O_NOCTTY);

5634

__attribute__((cleanup(cleanup_string)))

5635

char *const question_filename = strdup("/nonexistent/question");

5636

g_assert_nonnull(question_filename);

5637

__attribute__((cleanup(string_set_clear)))

5638

string_set cancelled_filenames = {};

5639

const mono_microsecs current_time = 5;

5640

__attribute__((cleanup(cleanup_queue)))

5641

task_queue *queue = create_queue();

5642

g_assert_nonnull(queue);

5643

__attribute__((cleanup(cleanup_string)))

5644

char *tempdir = make_temporary_directory();

5645

g_assert_nonnull(tempdir);

5646

__attribute__((cleanup(cleanup_close)))

5647

const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM

5648

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

5649

g_assert_cmpint(sock_fd, >=, 0);

5650

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

5651

const char socket_name[] = "socket_name";

5652

__attribute__((cleanup(cleanup_string)))

5653

char *filename = NULL;

5654

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5655

>, 0);

5656

g_assert_nonnull(filename);

5657

g_assert_cmpint((int)strlen(filename), <,

5658

(int)sizeof(sock_name.sun_path));

5659

strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));

5660

sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';

5661

g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,

5662

(socklen_t)SUN_LEN(&sock_name)), >=, 0);

5663

task_context task = {

5664

.func=connect_question_socket,

5665

.question_filename=strdup(question_filename),

5666

.epoll_fd=epoll_fd,

5667

.password=(buffer[]){{}},

5668

.filename=strdup(filename),

5669

.cancelled_filenames=&cancelled_filenames,

5670

.mandos_client_exited=(bool[]){false},

5671

.password_is_read=(bool[]){false},

5672

.current_time=&current_time,

5673

};

5674

g_assert_nonnull(task.question_filename);

5675

run_task_with_stderr_to_dev_null(task, queue);

5676

5677

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5678

const task_context *const added_task

5679

= find_matching_task(queue, task);

5680

g_assert_nonnull(added_task);

5681

g_assert_true(queue->next_run == 1000000 + current_time);

5682

5683

g_assert_cmpint(unlink(filename), ==, 0);

5684

g_assert_cmpint(rmdir(tempdir), ==, 0);

5685

}

5686

5687

static

5688

void test_connect_question_socket_usable(__attribute__((unused))

5689

test_fixture *fixture,

5690

__attribute__((unused))

5691

gconstpointer user_data){

5692

__attribute__((cleanup(cleanup_close)))

5693

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5694

g_assert_cmpint(epoll_fd, >=, 0);

5695

__attribute__((cleanup(cleanup_string)))

5696

char *const question_filename = strdup("/nonexistent/question");

5697

g_assert_nonnull(question_filename);

5698

__attribute__((cleanup(string_set_clear)))

5699

string_set cancelled_filenames = {};

5700

buffer password = {};

5701

bool mandos_client_exited = false;

5702

bool password_is_read = false;

5703

const mono_microsecs current_time = 0;

5704

__attribute__((cleanup(cleanup_queue)))

5705

task_queue *queue = create_queue();

5706

g_assert_nonnull(queue);

5707

__attribute__((cleanup(cleanup_string)))

5708

char *tempdir = make_temporary_directory();

5709

g_assert_nonnull(tempdir);

5710

__attribute__((cleanup(cleanup_close)))

5711

const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM

5712

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

5713

g_assert_cmpint(sock_fd, >=, 0);

5714

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

5715

const char socket_name[] = "socket_name";

5716

__attribute__((cleanup(cleanup_string)))

5717

char *filename = NULL;

5718

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5719

>, 0);

5720

g_assert_nonnull(filename);

5721

g_assert_cmpint((int)strlen(filename), <,

5722

(int)sizeof(sock_name.sun_path));

5723

strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));

5724

sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';

5725

g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,

5726

(socklen_t)SUN_LEN(&sock_name)), >=, 0);

5727

task_context task = {

5728

.func=connect_question_socket,

5729

.question_filename=strdup(question_filename),

5730

.epoll_fd=epoll_fd,

5731

.password=&password,

5732

.filename=strdup(filename),

5733

.cancelled_filenames=&cancelled_filenames,

5734

.mandos_client_exited=&mandos_client_exited,

5735

.password_is_read=&password_is_read,

5736

.current_time=&current_time,

5737

};

5738

g_assert_nonnull(task.question_filename);

5739

task.func(task, queue);

5740

5741

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5742

const task_context *const added_task

5743

= find_matching_task(queue, (task_context){

5744

.func=send_password_to_socket,

5745

.question_filename=question_filename,

5746

.filename=filename,

5747

.epoll_fd=epoll_fd,

5748

.password=&password,

5749

.cancelled_filenames=&cancelled_filenames,

5750

.mandos_client_exited=&mandos_client_exited,

5751

.password_is_read=&password_is_read,

5752

.current_time=&current_time,

5753

});

5754

g_assert_nonnull(added_task);

5755

g_assert_cmpint(added_task->fd, >, 0);

5756

5757

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5758

EPOLLOUT));

5759

5760

const int fd = added_task->fd;

5761

g_assert_cmpint(fd, >, 0);

5762

g_assert_true(fd_has_cloexec_and_nonblock(fd));

5763

5764

/* write to fd */

5765

char write_data[PIPE_BUF];

5766

{

5767

/* Construct test password buffer */

5768

/* Start with + since that is what the real procotol uses */

5769

write_data[0] = '+';

5770

/* Set a special character at string end just to mark the end */

5771

write_data[sizeof(write_data)-2] = 'y';

5772

/* Set NUL at buffer end, as suggested by the protocol */

5773

write_data[sizeof(write_data)-1] = '\0';

5774

/* Fill rest of password with 'x' */

5775

memset(write_data+1, 'x', sizeof(write_data)-3);

5776

g_assert_cmpint((int)send(fd, write_data, sizeof(write_data),

5777

MSG_NOSIGNAL), ==, sizeof(write_data));

5778

}

5779

5780

/* read from sock_fd */

5781

char read_data[sizeof(write_data)];

5782

g_assert_cmpint((int)read(sock_fd, read_data, sizeof(read_data)),

5783

==, sizeof(read_data));

5784

5785

g_assert_true(memcmp(write_data, read_data, sizeof(write_data))

5786

== 0);

5787

5788

/* writing to sock_fd should fail */

5789

g_assert_cmpint(send(sock_fd, write_data, sizeof(write_data),

5790

MSG_NOSIGNAL), <, 0);

5791

5792

/* reading from fd should fail */

5793

g_assert_cmpint((int)recv(fd, read_data, sizeof(read_data),

5794

MSG_NOSIGNAL), <, 0);

5795

5796

g_assert_cmpint(unlink(filename), ==, 0);

5797

g_assert_cmpint(rmdir(tempdir), ==, 0);

5798

}

5799

5800

static void

5801

test_send_password_to_socket_client_not_exited(__attribute__((unused))

5802

test_fixture *fixture,

5803

__attribute__((unused))

5804

gconstpointer

5805

user_data){

5806

__attribute__((cleanup(cleanup_close)))

5807

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5808

g_assert_cmpint(epoll_fd, >=, 0);

5809

__attribute__((cleanup(cleanup_string)))

5810

char *const question_filename = strdup("/nonexistent/question");

5811

g_assert_nonnull(question_filename);

5812

__attribute__((cleanup(cleanup_string)))

5813

char *const filename = strdup("/nonexistent/socket");

5814

g_assert_nonnull(filename);

5815

__attribute__((cleanup(string_set_clear)))

5816

string_set cancelled_filenames = {};

5817

buffer password = {};

5818

bool password_is_read = true;

5819

__attribute__((cleanup(cleanup_queue)))

5820

task_queue *queue = create_queue();

5821

g_assert_nonnull(queue);

5822

int socketfds[2];

5823

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5824

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5825

socketfds), ==, 0);

5826

__attribute__((cleanup(cleanup_close)))

5827

const int read_socket = socketfds[0];

5828

const int write_socket = socketfds[1];

5829

task_context task = {

5830

.func=send_password_to_socket,

5831

.question_filename=strdup(question_filename),

5832

.filename=strdup(filename),

5833

.epoll_fd=epoll_fd,

5834

.fd=write_socket,

5835

.password=&password,

5836

.cancelled_filenames=&cancelled_filenames,

5837

.mandos_client_exited=(bool[]){false},

5838

.password_is_read=&password_is_read,

5839

.current_time=(mono_microsecs[]){0},

5840

};

5841

g_assert_nonnull(task.question_filename);

5842

5843

task.func(task, queue);

5844

5845

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5846

5847

const task_context *const added_task

5848

= find_matching_task(queue, task);

5849

g_assert_nonnull(added_task);

5850

g_assert_cmpuint((unsigned int)password.length, ==, 0);

5851

g_assert_true(password_is_read);

5852

5853

g_assert_cmpint(added_task->fd, >, 0);

5854

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5855

EPOLLOUT));

5856

}

5857

5858

static void

5859

test_send_password_to_socket_password_not_read(__attribute__((unused))

5860

test_fixture *fixture,

5861

__attribute__((unused))

5862

gconstpointer

5863

user_data){

5864

__attribute__((cleanup(cleanup_close)))

5865

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5866

g_assert_cmpint(epoll_fd, >=, 0);

5867

__attribute__((cleanup(cleanup_string)))

5868

char *const question_filename = strdup("/nonexistent/question");

5869

g_assert_nonnull(question_filename);

5870

__attribute__((cleanup(cleanup_string)))

5871

char *const filename = strdup("/nonexistent/socket");

5872

__attribute__((cleanup(string_set_clear)))

5873

string_set cancelled_filenames = {};

5874

buffer password = {};

5875

__attribute__((cleanup(cleanup_queue)))

5876

task_queue *queue = create_queue();

5877

g_assert_nonnull(queue);

5878

int socketfds[2];

5879

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5880

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5881

socketfds), ==, 0);

5882

__attribute__((cleanup(cleanup_close)))

5883

const int read_socket = socketfds[0];

5884

const int write_socket = socketfds[1];

5885

task_context task = {

5886

.func=send_password_to_socket,

5887

.question_filename=strdup(question_filename),

5888

.filename=strdup(filename),

5889

.epoll_fd=epoll_fd,

5890

.fd=write_socket,

5891

.password=&password,

5892

.cancelled_filenames=&cancelled_filenames,

5893

.mandos_client_exited=(bool[]){false},

5894

.password_is_read=(bool[]){false},

5895

.current_time=(mono_microsecs[]){0},

5896

};

5897

g_assert_nonnull(task.question_filename);

5898

5899

task.func(task, queue);

5900

5901

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5902

5903

const task_context *const added_task = find_matching_task(queue,

5904

task);

5905

g_assert_nonnull(added_task);

5906

g_assert_cmpuint((unsigned int)password.length, ==, 0);

5907

g_assert_true(queue->next_run == 0);

5908

5909

g_assert_cmpint(added_task->fd, >, 0);

5910

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5911

EPOLLOUT));

5912

}

5913

5914

static

5915

void test_send_password_to_socket_EMSGSIZE(__attribute__((unused))

5916

test_fixture *fixture,

5917

__attribute__((unused))

5918

gconstpointer user_data){

5919

__attribute__((cleanup(cleanup_close)))

5920

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5921

g_assert_cmpint(epoll_fd, >=, 0);

5922

const char question_filename[] = "/nonexistent/question";

5923

char *const filename = strdup("/nonexistent/socket");

5924

__attribute__((cleanup(string_set_clear)))

5925

string_set cancelled_filenames = {};

5926

const size_t oversized = 1024*1024; /* Limit seems to be 212960 */

5927

__attribute__((cleanup(cleanup_buffer)))

5928

buffer password = {

5929

.data=malloc(oversized),

5930

.length=oversized,

5931

.allocated=oversized,

5932

};

5933

g_assert_nonnull(password.data);

5934

if(mlock(password.data, password.allocated) != 0){

5935

g_assert_true(errno == EPERM or errno == ENOMEM);

5936

}

5937

/* Construct test password buffer */

5938

/* Start with + since that is what the real procotol uses */

5939

password.data[0] = '+';

5940

/* Set a special character at string end just to mark the end */

5941

password.data[oversized-3] = 'y';

5942

/* Set NUL at buffer end, as suggested by the protocol */

5943

password.data[oversized-2] = '\0';

5944

/* Fill rest of password with 'x' */

5945

memset(password.data+1, 'x', oversized-3);

5946

5947

__attribute__((cleanup(cleanup_queue)))

5948

task_queue *queue = create_queue();

5949

g_assert_nonnull(queue);

5950

int socketfds[2];

5951

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5952

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5953

socketfds), ==, 0);

5954

__attribute__((cleanup(cleanup_close)))

5955

const int read_socket = socketfds[0];

5956

__attribute__((cleanup(cleanup_close)))

5957

const int write_socket = socketfds[1];

5958

task_context task = {

5959

.func=send_password_to_socket,

5960

.question_filename=strdup(question_filename),

5961

.filename=filename,

5962

.epoll_fd=epoll_fd,

5963

.fd=write_socket,

5964

.password=&password,

5965

.cancelled_filenames=&cancelled_filenames,

5966

.mandos_client_exited=(bool[]){true},

5967

.password_is_read=(bool[]){true},

5968

.current_time=(mono_microsecs[]){0},

5969

};

5970

g_assert_nonnull(task.question_filename);

5971

5972

run_task_with_stderr_to_dev_null(task, queue);

5973

5974

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5975

g_assert_true(string_set_contains(cancelled_filenames,

5976

question_filename));

5977

}

5978

5979

static void test_send_password_to_socket_retry(__attribute__((unused))

5980

test_fixture *fixture,

5981

__attribute__((unused))

5982

gconstpointer

5983

user_data){

5984

__attribute__((cleanup(cleanup_close)))

5985

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5986

g_assert_cmpint(epoll_fd, >=, 0);

5987

__attribute__((cleanup(cleanup_string)))

5988

char *const question_filename = strdup("/nonexistent/question");

5989

g_assert_nonnull(question_filename);

5990

__attribute__((cleanup(cleanup_string)))

5991

char *const filename = strdup("/nonexistent/socket");

5992

g_assert_nonnull(filename);

5993

__attribute__((cleanup(string_set_clear)))

5994

string_set cancelled_filenames = {};

5995

__attribute__((cleanup(cleanup_buffer)))

5996

buffer password = {};

5997

5998

__attribute__((cleanup(cleanup_queue)))

5999

task_queue *queue = create_queue();

6000

g_assert_nonnull(queue);

6001

int socketfds[2];

6002

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

6003

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

6004

socketfds), ==, 0);

6005

__attribute__((cleanup(cleanup_close)))

6006

const int read_socket = socketfds[0];

6007

const int write_socket = socketfds[1];

6008

/* Close the server side socket to force ECONNRESET on client */

6009

g_assert_cmpint(close(read_socket), ==, 0);

6010

task_context task = {

6011

.func=send_password_to_socket,

6012

.question_filename=strdup(question_filename),

6013

.filename=strdup(filename),

6014

.epoll_fd=epoll_fd,

6015

.fd=write_socket,

6016

.password=&password,

6017

.cancelled_filenames=&cancelled_filenames,

6018

.mandos_client_exited=(bool[]){true},

6019

.password_is_read=(bool[]){true},

6020

.current_time=(mono_microsecs[]){0},

6021

};

6022

g_assert_nonnull(task.question_filename);

6023

6024

task.func(task, queue);

6025

6026

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6027

6028

const task_context *const added_task = find_matching_task(queue,

6029

task);

6030

g_assert_nonnull(added_task);

6031

g_assert_cmpuint((unsigned int)password.length, ==, 0);

6032

6033

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

6034

EPOLLOUT));

6035

}

6036

6037

static

6038

void test_send_password_to_socket_bad_epoll(__attribute__((unused))

6039

test_fixture *fixture,

6040

__attribute__((unused))

6041

gconstpointer user_data){

6042

__attribute__((cleanup(cleanup_close)))

6043

const int epoll_fd = open("/dev/null",

6044

O_WRONLY | O_CLOEXEC | O_NOCTTY);

6045

__attribute__((cleanup(cleanup_string)))

6046

char *const question_filename = strdup("/nonexistent/question");

6047

g_assert_nonnull(question_filename);

6048

__attribute__((cleanup(cleanup_string)))

6049

char *const filename = strdup("/nonexistent/socket");

6050

g_assert_nonnull(filename);

6051

__attribute__((cleanup(string_set_clear)))

6052

string_set cancelled_filenames = {};

6053

__attribute__((cleanup(cleanup_buffer)))

6054

buffer password = {};

6055

6056

const mono_microsecs current_time = 11;

6057

__attribute__((cleanup(cleanup_queue)))

6058

task_queue *queue = create_queue();

6059

g_assert_nonnull(queue);

6060

int socketfds[2];

6061

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

6062

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

6063

socketfds), ==, 0);

6064

__attribute__((cleanup(cleanup_close)))

6065

const int read_socket = socketfds[0];

6066

const int write_socket = socketfds[1];

6067

/* Close the server side socket to force ECONNRESET on client */

6068

g_assert_cmpint(close(read_socket), ==, 0);

6069

task_context task = {

6070

.func=send_password_to_socket,

6071

.question_filename=strdup(question_filename),

6072

.filename=strdup(filename),

6073

.epoll_fd=epoll_fd,

6074

.fd=write_socket,

6075

.password=&password,

6076

.cancelled_filenames=&cancelled_filenames,

6077

.mandos_client_exited=(bool[]){true},

6078

.password_is_read=(bool[]){true},

6079

.current_time=&current_time,

6080

};

6081

g_assert_nonnull(task.question_filename);

6082

6083

run_task_with_stderr_to_dev_null(task, queue);

6084

6085

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6086

6087

const task_context *const added_task = find_matching_task(queue,

6088

task);

6089

g_assert_nonnull(added_task);

6090

g_assert_true(queue->next_run == current_time + 1000000);

6091

g_assert_cmpuint((unsigned int)password.length, ==, 0);

6092

}

6093

6094

static void assert_send_password_to_socket_password(buffer password){

6095

__attribute__((cleanup(cleanup_close)))

6096

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6097

g_assert_cmpint(epoll_fd, >=, 0);

6098

char *const question_filename = strdup("/nonexistent/question");

6099

g_assert_nonnull(question_filename);

6100

char *const filename = strdup("/nonexistent/socket");

6101

g_assert_nonnull(filename);

6102

__attribute__((cleanup(string_set_clear)))

6103

string_set cancelled_filenames = {};

6104

6105

__attribute__((cleanup(cleanup_queue)))

6106

task_queue *queue = create_queue();

6107

g_assert_nonnull(queue);

6108

int socketfds[2];

6109

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

6110

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

6111

socketfds), ==, 0);

6112

__attribute__((cleanup(cleanup_close)))

6113

const int read_socket = socketfds[0];

6114

const int write_socket = socketfds[1];

6115

task_context task = {

6116

.func=send_password_to_socket,

6117

.question_filename=question_filename,

6118

.filename=filename,

6119

.epoll_fd=epoll_fd,

6120

.fd=write_socket,

6121

.password=&password,

6122

.cancelled_filenames=&cancelled_filenames,

6123

.mandos_client_exited=(bool[]){true},

6124

.password_is_read=(bool[]){true},

6125

.current_time=(mono_microsecs[]){0},

6126

};

6127

6128

char *expected_written_data = malloc(password.length + 2);

6129

g_assert_nonnull(expected_written_data);

6130

expected_written_data[0] = '+';

6131

expected_written_data[password.length + 1] = '\0';

6132

if(password.length > 0){

6133

g_assert_nonnull(password.data);

6134

memcpy(expected_written_data + 1, password.data, password.length);

6135

}

6136

6137

task.func(task, queue);

6138

6139

char buf[PIPE_BUF];

6140

g_assert_cmpint((int)read(read_socket, buf, PIPE_BUF), ==,

6141

(int)(password.length + 2));

6142

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6143

6144

g_assert_true(memcmp(expected_written_data, buf,

6145

password.length + 2) == 0);

6146

6147

g_assert_true(epoll_set_does_not_contain(epoll_fd, write_socket));

6148

6149

free(expected_written_data);

6150

}

6151

6152

static void

6153

test_send_password_to_socket_null_password(__attribute__((unused))

6154

test_fixture *fixture,

6155

__attribute__((unused))

6156

gconstpointer user_data){

6157

__attribute__((cleanup(cleanup_buffer)))

6158

buffer password = {};

6159

assert_send_password_to_socket_password(password);

6160

}

6161

6162

static void

6163

test_send_password_to_socket_empty_password(__attribute__((unused))

6164

test_fixture *fixture,

6165

__attribute__((unused))

6166

gconstpointer user_data){

6167

__attribute__((cleanup(cleanup_buffer)))

6168

buffer password = {

6169

.data=malloc(1), /* because malloc(0) may return NULL */

6170

.length=0,

6171

.allocated=0, /* deliberate lie */

6172

};

6173

g_assert_nonnull(password.data);

6174

assert_send_password_to_socket_password(password);

6175

}

6176

6177

static void

6178

test_send_password_to_socket_empty_str_pass(__attribute__((unused))

6179

test_fixture *fixture,

6180

__attribute__((unused))

6181

gconstpointer user_data){

6182

__attribute__((cleanup(cleanup_buffer)))

6183

buffer password = {

6184

.data=strdup(""),

6185

.length=0,

6186

.allocated=1,

6187

};

6188

if(mlock(password.data, password.allocated) != 0){

6189

g_assert_true(errno == EPERM or errno == ENOMEM);

6190

}

6191

assert_send_password_to_socket_password(password);

6192

}

6193

6194

static void

6195

test_send_password_to_socket_text_password(__attribute__((unused))

6196

test_fixture *fixture,

6197

__attribute__((unused))

6198

gconstpointer user_data){

6199

const char dummy_test_password[] = "dummy test password";

6200

__attribute__((cleanup(cleanup_buffer)))

6201

buffer password = {

6202

.data = strdup(dummy_test_password),

6203

.length = strlen(dummy_test_password),

6204

.allocated = sizeof(dummy_test_password),

6205

};

6206

if(mlock(password.data, password.allocated) != 0){

6207

g_assert_true(errno == EPERM or errno == ENOMEM);

6208

}

6209

assert_send_password_to_socket_password(password);

6210

}

6211

6212

static void

6213

test_send_password_to_socket_binary_password(__attribute__((unused))

6214

test_fixture *fixture,

6215

__attribute__((unused))

6216

gconstpointer user_data){

6217

__attribute__((cleanup(cleanup_buffer)))

6218

buffer password = {

6219

.data=malloc(255),

6220

.length=255,

6221

.allocated=255,

6222

};

6223

g_assert_nonnull(password.data);

6224

if(mlock(password.data, password.allocated) != 0){

6225

g_assert_true(errno == EPERM or errno == ENOMEM);

6226

}

6227

char c = 1; /* Start at 1, avoiding NUL */

6228

for(int i=0; i < 255; i++){

6229

password.data[i] = c++;

6230

}

6231

assert_send_password_to_socket_password(password);

6232

}

6233

6234

static void

6235

test_send_password_to_socket_nuls_in_password(__attribute__((unused))

6236

test_fixture *fixture,

6237

__attribute__((unused))

6238

gconstpointer

6239

user_data){

6240

char test_password[] = {'\0', 'a', '\0', 'b', '\0', 'c', '\0'};

6241

__attribute__((cleanup(cleanup_buffer)))

6242

buffer password = {

6243

.data=malloc(sizeof(test_password)),

6244

.length=sizeof(test_password),

6245

.allocated=sizeof(test_password),

6246

};

6247

g_assert_nonnull(password.data);

6248

if(mlock(password.data, password.allocated) !=0){

6249

g_assert_true(errno == EPERM or errno == ENOMEM);

6250

}

6251

memcpy(password.data, test_password, password.allocated);

6252

assert_send_password_to_socket_password(password);

6253

}

6254

6255

static bool assert_add_existing_questions_to_devnull(task_queue

6256

*const,

6257

const int,

6258

buffer *const,

6259

string_set *,

6260

const

6261

mono_microsecs

6262

*const,

6263

bool *const,

6264

bool *const,

6265

const char

6266

*const);

6267

6268

static void test_add_existing_questions_ENOENT(__attribute__((unused))

6269

test_fixture *fixture,

6270

__attribute__((unused))

6271

gconstpointer

6272

user_data){

6273

__attribute__((cleanup(cleanup_queue)))

6274

task_queue *queue = create_queue();

6275

g_assert_nonnull(queue);

6276

__attribute__((cleanup(cleanup_close)))

6277

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6278

g_assert_cmpint(epoll_fd, >=, 0);

6279

__attribute__((cleanup(string_set_clear)))

6280

string_set cancelled_filenames = {};

6281

6282

g_assert_false(assert_add_existing_questions_to_devnull

6283

(queue,

6284

epoll_fd,

6285

(buffer[]){{}}, /* password */

6286

&cancelled_filenames,

6287

(mono_microsecs[]){0}, /* current_time */

6288

(bool[]){false}, /* mandos_client_exited */

6289

(bool[]){false}, /* password_is_read */

6290

"/nonexistent")); /* dirname */

6291

6292

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6293

}

6294

6295

static

6296

bool assert_add_existing_questions_to_devnull(task_queue

6297

*const queue,

6298

const int

6299

epoll_fd,

6300

buffer *const

6301

password,

6302

string_set

6303

*cancelled_filenames,

6304

const mono_microsecs

6305

*const current_time,

6306

bool *const

6307

mandos_client_exited,

6308

bool *const

6309

password_is_read,

6310

const char *const

6311

dirname){

6312

__attribute__((cleanup(cleanup_close)))

6313

const int devnull_fd = open("/dev/null",

6314

O_WRONLY | O_CLOEXEC | O_NOCTTY);

6315

g_assert_cmpint(devnull_fd, >=, 0);

6316

__attribute__((cleanup(cleanup_close)))

6317

const int real_stderr_fd = dup(STDERR_FILENO);

6318

g_assert_cmpint(real_stderr_fd, >=, 0);

6319

dup2(devnull_fd, STDERR_FILENO);

6320

const bool ret = add_existing_questions(queue, epoll_fd, password,

6321

cancelled_filenames,

6322

current_time,

6323

mandos_client_exited,

6324

password_is_read, dirname);

6325

dup2(real_stderr_fd, STDERR_FILENO);

6326

return ret;

6327

}

6328

6329

static

6330

void test_add_existing_questions_no_questions(__attribute__((unused))

6331

test_fixture *fixture,

6332

__attribute__((unused))

6333

gconstpointer

6334

user_data){

6335

__attribute__((cleanup(cleanup_queue)))

6336

task_queue *queue = create_queue();

6337

g_assert_nonnull(queue);

6338

__attribute__((cleanup(cleanup_close)))

6339

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6340

g_assert_cmpint(epoll_fd, >=, 0);

6341

__attribute__((cleanup(string_set_clear)))

6342

string_set cancelled_filenames = {};

6343

__attribute__((cleanup(cleanup_string)))

6344

char *tempdir = make_temporary_directory();

6345

g_assert_nonnull(tempdir);

6346

6347

g_assert_false(assert_add_existing_questions_to_devnull

6348

(queue,

6349

epoll_fd,

6350

(buffer[]){{}}, /* password */

6351

&cancelled_filenames,

6352

(mono_microsecs[]){0}, /* current_time */

6353

(bool[]){false}, /* mandos_client_exited */

6354

(bool[]){false}, /* password_is_read */

6355

tempdir));

6356

6357

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6358

6359

g_assert_cmpint(rmdir(tempdir), ==, 0);

6360

}

6361

6362

static char *make_question_file_in_directory(const char *const);

6363

6364

static

6365

void test_add_existing_questions_one_question(__attribute__((unused))

6366

test_fixture *fixture,

6367

__attribute__((unused))

6368

gconstpointer

6369

user_data){

6370

__attribute__((cleanup(cleanup_queue)))

6371

task_queue *queue = create_queue();

6372

g_assert_nonnull(queue);

6373

__attribute__((cleanup(cleanup_close)))

6374

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6375

g_assert_cmpint(epoll_fd, >=, 0);

6376

__attribute__((cleanup(cleanup_buffer)))

6377

buffer password = {};

6378

__attribute__((cleanup(string_set_clear)))

6379

string_set cancelled_filenames = {};

6380

const mono_microsecs current_time = 0;

6381

bool mandos_client_exited = false;

6382

bool password_is_read = false;

6383

__attribute__((cleanup(cleanup_string)))

6384

char *tempdir = make_temporary_directory();

6385

g_assert_nonnull(tempdir);

6386

__attribute__((cleanup(cleanup_string)))

6387

char *question_filename

6388

= make_question_file_in_directory(tempdir);

6389

g_assert_nonnull(question_filename);

6390

6391

g_assert_true(assert_add_existing_questions_to_devnull

6392

(queue,

6393

epoll_fd,

6394

&password,

6395

&cancelled_filenames,

6396

&current_time,

6397

&mandos_client_exited,

6398

&password_is_read,

6399

tempdir));

6400

6401

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6402

6403

g_assert_nonnull(find_matching_task(queue, (task_context){

6404

.func=open_and_parse_question,

6405

.epoll_fd=epoll_fd,

6406

.filename=question_filename,

6407

.question_filename=question_filename,

6408

.password=&password,

6409

.cancelled_filenames=&cancelled_filenames,

6410

.current_time=&current_time,

6411

.mandos_client_exited=&mandos_client_exited,

6412

.password_is_read=&password_is_read,

6413

}));

6414

6415

g_assert_true(queue->next_run == 1);

6416

6417

g_assert_cmpint(unlink(question_filename), ==, 0);

6418

g_assert_cmpint(rmdir(tempdir), ==, 0);

6419

}

6420

6421

static char *make_question_file_in_directory(const char

6422

*const dir){

6423

return make_temporary_prefixed_file_in_directory("ask.", dir);

6424

}

6425

6426

static

6427

void test_add_existing_questions_two_questions(__attribute__((unused))

6428

test_fixture *fixture,

6429

__attribute__((unused))

6430

gconstpointer

6431

user_data){

6432

__attribute__((cleanup(cleanup_queue)))

6433

task_queue *queue = create_queue();

6434

g_assert_nonnull(queue);

6435

__attribute__((cleanup(cleanup_close)))

6436

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6437

g_assert_cmpint(epoll_fd, >=, 0);

6438

__attribute__((cleanup(cleanup_buffer)))

6439

buffer password = {};

6440

__attribute__((cleanup(string_set_clear)))

6441

string_set cancelled_filenames = {};

6442

const mono_microsecs current_time = 0;

6443

bool mandos_client_exited = false;

6444

bool password_is_read = false;

6445

__attribute__((cleanup(cleanup_string)))

6446

char *tempdir = make_temporary_directory();

6447

g_assert_nonnull(tempdir);

6448

__attribute__((cleanup(cleanup_string)))

6449

char *question_filename1

6450

= make_question_file_in_directory(tempdir);

6451

g_assert_nonnull(question_filename1);

6452

__attribute__((cleanup(cleanup_string)))

6453

char *question_filename2

6454

= make_question_file_in_directory(tempdir);

6455

g_assert_nonnull(question_filename2);

6456

6457

g_assert_true(assert_add_existing_questions_to_devnull

6458

(queue,

6459

epoll_fd,

6460

&password,

6461

&cancelled_filenames,

6462

&current_time,

6463

&mandos_client_exited,

6464

&password_is_read,

6465

tempdir));

6466

6467

g_assert_cmpuint((unsigned int)queue->length, ==, 2);

6468

6469

g_assert_true(queue->next_run == 1);

6470

6471

__attribute__((cleanup(string_set_clear)))

6472

string_set seen_questions = {};

6473

6474

bool queue_contains_question_opener(char *const question_filename){

6475

return(find_matching_task(queue, (task_context){

6476

.func=open_and_parse_question,

6477

.epoll_fd=epoll_fd,

6478

.question_filename=question_filename,

6479

.password=&password,

6480

.cancelled_filenames=&cancelled_filenames,

6481

.current_time=&current_time,

6482

.mandos_client_exited=&mandos_client_exited,

6483

.password_is_read=&password_is_read,

6484

}) != NULL);

6485

}

6486

6487

g_assert_true(queue_contains_question_opener(question_filename1));

6488

g_assert_true(queue_contains_question_opener(question_filename2));

6489

6490

g_assert_true(queue->next_run == 1);

6491

6492

g_assert_cmpint(unlink(question_filename1), ==, 0);

6493

g_assert_cmpint(unlink(question_filename2), ==, 0);

6494

g_assert_cmpint(rmdir(tempdir), ==, 0);

6495

}

6496

6497

static void

6498

test_add_existing_questions_non_questions(__attribute__((unused))

6499

test_fixture *fixture,

6500

__attribute__((unused))

6501

gconstpointer user_data){

6502

__attribute__((cleanup(cleanup_queue)))

6503

task_queue *queue = create_queue();

6504

g_assert_nonnull(queue);

6505

__attribute__((cleanup(cleanup_close)))

6506

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6507

g_assert_cmpint(epoll_fd, >=, 0);

6508

__attribute__((cleanup(string_set_clear)))

6509

string_set cancelled_filenames = {};

6510

__attribute__((cleanup(cleanup_string)))

6511

char *tempdir = make_temporary_directory();

6512

g_assert_nonnull(tempdir);

6513

__attribute__((cleanup(cleanup_string)))

6514

char *question_filename1

6515

= make_temporary_file_in_directory(tempdir);

6516

g_assert_nonnull(question_filename1);

6517

__attribute__((cleanup(cleanup_string)))

6518

char *question_filename2

6519

= make_temporary_file_in_directory(tempdir);

6520

g_assert_nonnull(question_filename2);

6521

6522

g_assert_false(assert_add_existing_questions_to_devnull

6523

(queue,

6524

epoll_fd,

6525

(buffer[]){{}}, /* password */

6526

&cancelled_filenames,

6527

(mono_microsecs[]){0}, /* current_time */

6528

(bool[]){false}, /* mandos_client_exited */

6529

(bool[]){false}, /* password_is_read */

6530

tempdir));

6531

6532

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6533

6534

g_assert_cmpint(unlink(question_filename1), ==, 0);

6535

g_assert_cmpint(unlink(question_filename2), ==, 0);

6536

g_assert_cmpint(rmdir(tempdir), ==, 0);

6537

}

6538

6539

static void

6540

test_add_existing_questions_both_types(__attribute__((unused))

6541

test_fixture *fixture,

6542

__attribute__((unused))

6543

gconstpointer user_data){

6544

__attribute__((cleanup(cleanup_queue)))

6545

task_queue *queue = create_queue();

6546

g_assert_nonnull(queue);

6547

__attribute__((cleanup(cleanup_close)))

6548

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6549

g_assert_cmpint(epoll_fd, >=, 0);

6550

__attribute__((cleanup(cleanup_buffer)))

6551

buffer password = {};

6552

__attribute__((cleanup(string_set_clear)))

6553

string_set cancelled_filenames = {};

6554

const mono_microsecs current_time = 0;

6555

bool mandos_client_exited = false;

6556

bool password_is_read = false;

6557

__attribute__((cleanup(cleanup_string)))

6558

char *tempdir = make_temporary_directory();

6559

g_assert_nonnull(tempdir);

6560

__attribute__((cleanup(cleanup_string)))

6561

char *tempfilename1 = make_temporary_file_in_directory(tempdir);

6562

g_assert_nonnull(tempfilename1);

6563

__attribute__((cleanup(cleanup_string)))

6564

char *tempfilename2 = make_temporary_file_in_directory(tempdir);

6565

g_assert_nonnull(tempfilename2);

6566

__attribute__((cleanup(cleanup_string)))

6567

char *question_filename

6568

= make_question_file_in_directory(tempdir);

6569

g_assert_nonnull(question_filename);

6570

6571

g_assert_true(assert_add_existing_questions_to_devnull

6572

(queue,

6573

epoll_fd,

6574

&password,

6575

&cancelled_filenames,

6576

&current_time,

6577

&mandos_client_exited,

6578

&password_is_read,

6579

tempdir));

6580

6581

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6582

6583

g_assert_nonnull(find_matching_task(queue, (task_context){

6584

.func=open_and_parse_question,

6585

.epoll_fd=epoll_fd,

6586

.filename=question_filename,

6587

.question_filename=question_filename,

6588

.password=&password,

6589

.cancelled_filenames=&cancelled_filenames,

6590

.current_time=&current_time,

6591

.mandos_client_exited=&mandos_client_exited,

6592

.password_is_read=&password_is_read,

6593

}));

6594

6595

g_assert_true(queue->next_run == 1);

6596

6597

g_assert_cmpint(unlink(tempfilename1), ==, 0);

6598

g_assert_cmpint(unlink(tempfilename2), ==, 0);

6599

g_assert_cmpint(unlink(question_filename), ==, 0);

6600

g_assert_cmpint(rmdir(tempdir), ==, 0);

6601

}

6602

6603

static void test_wait_for_event_timeout(__attribute__((unused))

6604

test_fixture *fixture,

6605

__attribute__((unused))

6606

gconstpointer user_data){

6607

__attribute__((cleanup(cleanup_close)))

6608

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6609

g_assert_cmpint(epoll_fd, >=, 0);

6610

6611

g_assert_true(wait_for_event(epoll_fd, 1, 0));

6612

}

6613

6614

static void test_wait_for_event_event(__attribute__((unused))

6615

test_fixture *fixture,

6616

__attribute__((unused))

6617

gconstpointer user_data){

6618

__attribute__((cleanup(cleanup_close)))

6619

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6620

g_assert_cmpint(epoll_fd, >=, 0);

6621

int pipefds[2];

6622

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

6623

__attribute__((cleanup(cleanup_close)))

6624

const int read_pipe = pipefds[0];

6625

__attribute__((cleanup(cleanup_close)))

6626

const int write_pipe = pipefds[1];

6627

g_assert_cmpint(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, read_pipe,

6628

&(struct epoll_event)

6629

{ .events=EPOLLIN | EPOLLRDHUP }), ==, 0);

6630

g_assert_cmpint((int)write(write_pipe, "x", 1), ==, 1);

6631

6632

g_assert_true(wait_for_event(epoll_fd, 0, 0));

6633

}

6634

6635

static void test_wait_for_event_sigchld(test_fixture *fixture,

6636

__attribute__((unused))

6637

gconstpointer user_data){

6638

const pid_t pid = fork();

6639

if(pid == 0){ /* Child */

6640

if(not restore_signal_handler(&fixture->orig_sigaction)){

6641

_exit(EXIT_FAILURE);

6642

}

6643

if(not restore_sigmask(&fixture->orig_sigmask)){

6644

_exit(EXIT_FAILURE);

6645

}

6646

exit(EXIT_SUCCESS);

6647

}

6648

g_assert_true(pid != -1);

6649

__attribute__((cleanup(cleanup_close)))

6650

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6651

g_assert_cmpint(epoll_fd, >=, 0);

6652

6653

g_assert_true(wait_for_event(epoll_fd, 0, 0));

6654

6655

int status;

6656

g_assert_true(waitpid(pid, &status, 0) == pid);

6657

g_assert_true(WIFEXITED(status));

6658

g_assert_cmpint(WEXITSTATUS(status), ==, EXIT_SUCCESS);

6659

}

6660

6661

static void test_run_queue_zeroes_next_run(__attribute__((unused))

6662

test_fixture *fixture,

6663

__attribute__((unused))

6664

gconstpointer user_data){

6665

__attribute__((cleanup(cleanup_queue)))

6666

task_queue *queue = create_queue();

6667

g_assert_nonnull(queue);

6668

queue->next_run = 1;

6669

__attribute__((cleanup(cleanup_close)))

6670

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6671

__attribute__((cleanup(string_set_clear)))

6672

string_set cancelled_filenames = {};

6673

bool quit_now = false;

6674

6675

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6676

g_assert_false(quit_now);

6677

g_assert_cmpuint((unsigned int)queue->next_run, ==, 0);

6678

}

6679

6680

static

6681

void test_run_queue_clears_cancelled_filenames(__attribute__((unused))

6682

test_fixture *fixture,

6683

__attribute__((unused))

6684

gconstpointer

6685

user_data){

6686

__attribute__((cleanup(cleanup_queue)))

6687

task_queue *queue = create_queue();

6688

g_assert_nonnull(queue);

6689

__attribute__((cleanup(string_set_clear)))

6690

string_set cancelled_filenames = {};

6691

bool quit_now = false;

6692

const char question_filename[] = "/nonexistent/question_filename";

6693

g_assert_true(string_set_add(&cancelled_filenames,

6694

question_filename));

6695

6696

g_assert_true(add_to_queue(queue,

6697

(task_context){ .func=dummy_func }));

6698

6699

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6700

g_assert_false(quit_now);

6701

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6702

g_assert_false(string_set_contains(cancelled_filenames,

6703

question_filename));

6704

}

6705

6706

static

6707

void test_run_queue_skips_cancelled_filenames(__attribute__((unused))

6708

test_fixture *fixture,

6709

__attribute__((unused))

6710

gconstpointer

6711

user_data){

6712

__attribute__((cleanup(cleanup_queue)))

6713

task_queue *queue = create_queue();

6714

g_assert_nonnull(queue);

6715

__attribute__((cleanup(string_set_clear)))

6716

string_set cancelled_filenames = {};

6717

bool quit_now = false;

6718

int pipefds[2];

6719

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

6720

__attribute__((cleanup(cleanup_close)))

6721

const int read_pipe = pipefds[0];

6722

g_assert_cmpint(close(pipefds[1]), ==, 0);

6723

const char question_filename[] = "/nonexistent/question_filename";

6724

g_assert_true(string_set_add(&cancelled_filenames,

6725

question_filename));

6726

__attribute__((nonnull))

6727

void quit_func(const task_context task,

6728

__attribute__((unused)) task_queue *const q){

6729

g_assert_nonnull(task.quit_now);

6730

*task.quit_now = true;

6731

}

6732

task_context task = {

6733

.func=quit_func,

6734

.question_filename=strdup(question_filename),

6735

.quit_now=&quit_now,

6736

.fd=read_pipe,

6737

};

6738

g_assert_nonnull(task.question_filename);

6739

6740

g_assert_true(add_to_queue(queue, task));

6741

6742

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6743

g_assert_false(quit_now);

6744

6745

/* read_pipe should be closed already */

6746

errno = 0;

6747

bool read_pipe_closed = (close(read_pipe) == -1);

6748

read_pipe_closed &= (errno == EBADF);

6749

g_assert_true(read_pipe_closed);

6750

}

6751

6752

static void test_run_queue_one_task(__attribute__((unused))

6753

test_fixture *fixture,

6754

__attribute__((unused))

6755

gconstpointer user_data){

6756

__attribute__((cleanup(cleanup_queue)))

6757

task_queue *queue = create_queue();

6758

g_assert_nonnull(queue);

6759

__attribute__((cleanup(string_set_clear)))

6760

string_set cancelled_filenames = {};

6761

bool quit_now = false;

6762

6763

__attribute__((nonnull))

6764

void next_run_func(__attribute__((unused))

6765

const task_context task,

6766

task_queue *const q){

6767

q->next_run = 1;

6768

}

6769

6770

task_context task = {

6771

.func=next_run_func,

6772

};

6773

g_assert_true(add_to_queue(queue, task));

6774

6775

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6776

g_assert_cmpuint((unsigned int)(queue->next_run), ==, 1);

6777

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6778

}

6779

6780

static void test_run_queue_two_tasks(__attribute__((unused))

6781

test_fixture *fixture,

6782

__attribute__((unused))

6783

gconstpointer user_data){

6784

__attribute__((cleanup(cleanup_queue)))

6785

task_queue *queue = create_queue();

6786

g_assert_nonnull(queue);

6787

queue->next_run = 1;

6788

__attribute__((cleanup(string_set_clear)))

6789

string_set cancelled_filenames = {};

6790

bool quit_now = false;

6791

bool mandos_client_exited = false;

6792

6793

__attribute__((nonnull))

6794

void next_run_func(__attribute__((unused))

6795

const task_context task,

6796

task_queue *const q){

6797

q->next_run = 1;

6798

}

6799

6800

__attribute__((nonnull))

6801

void exited_func(const task_context task,

6802

__attribute__((unused)) task_queue *const q){

6803

*task.mandos_client_exited = true;

6804

}

6805

6806

task_context task1 = {

6807

.func=next_run_func,

6808

};

6809

g_assert_true(add_to_queue(queue, task1));

6810

6811

task_context task2 = {

6812

.func=exited_func,

6813

.mandos_client_exited=&mandos_client_exited,

6814

};

6815

g_assert_true(add_to_queue(queue, task2));

6816

6817

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6818

g_assert_false(quit_now);

6819

g_assert_cmpuint((unsigned int)(queue->next_run), ==, 1);

6820

g_assert_true(mandos_client_exited);

6821

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6822

}

6823

6824

static void test_run_queue_two_tasks_quit(__attribute__((unused))

6825

test_fixture *fixture,

6826

__attribute__((unused))

6827

gconstpointer user_data){

6828

__attribute__((cleanup(cleanup_queue)))

6829

task_queue *queue = create_queue();

6830

g_assert_nonnull(queue);

6831

__attribute__((cleanup(string_set_clear)))

6832

string_set cancelled_filenames = {};

6833

bool quit_now = false;

6834

bool mandos_client_exited = false;

6835

bool password_is_read = false;

6836

6837

__attribute__((nonnull))

6838

void set_exited_func(const task_context task,

6839

__attribute__((unused)) task_queue *const q){

6840

*task.mandos_client_exited = true;

6841

*task.quit_now = true;

6842

}

6843

task_context task1 = {

6844

.func=set_exited_func,

6845

.quit_now=&quit_now,

6846

.mandos_client_exited=&mandos_client_exited,

6847

};

6848

g_assert_true(add_to_queue(queue, task1));

6849

6850

__attribute__((nonnull))

6851

void set_read_func(const task_context task,

6852

__attribute__((unused)) task_queue *const q){

6853

*task.quit_now = true;

6854

*task.password_is_read = true;

6855

}

6856

task_context task2 = {

6857

.func=set_read_func,

6858

.quit_now=&quit_now,

6859

.password_is_read=&password_is_read,

6860

};

6861

g_assert_true(add_to_queue(queue, task2));

6862

6863

g_assert_false(run_queue(&queue, &cancelled_filenames, &quit_now));

6864

g_assert_true(quit_now);

6865

g_assert_true(mandos_client_exited xor password_is_read);

6866

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6867

}

6868

6869

static void test_run_queue_two_tasks_cleanup(__attribute__((unused))

6870

test_fixture *fixture,

6871

__attribute__((unused))

6872

gconstpointer user_data){

6873

__attribute__((cleanup(cleanup_queue)))

6874

task_queue *queue = create_queue();

6875

g_assert_nonnull(queue);

6876

__attribute__((cleanup(string_set_clear)))

6877

string_set cancelled_filenames = {};

6878

int pipefds[2];

6879

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

6880

__attribute__((cleanup(cleanup_close)))

6881

const int read_pipe = pipefds[0];

6882

__attribute__((cleanup(cleanup_close)))

6883

const int write_pipe = pipefds[1];

6884

bool quit_now = false;

6885

6886

__attribute__((nonnull))

6887

void read_func(const task_context task,

6888

__attribute__((unused)) task_queue *const q){

6889

*task.quit_now = true;

6890

}

6891

task_context task1 = {

6892

.func=read_func,

6893

.quit_now=&quit_now,

6894

.fd=read_pipe,

6895

};

6896

g_assert_true(add_to_queue(queue, task1));

6897

6898

__attribute__((nonnull))

6899

void write_func(const task_context task,

6900

__attribute__((unused)) task_queue *const q){

6901

*task.quit_now = true;

6902

}

6903

task_context task2 = {

6904

.func=write_func,

6905

.quit_now=&quit_now,

6906

.fd=write_pipe,

6907

};

6908

g_assert_true(add_to_queue(queue, task2));

6909

6910

g_assert_false(run_queue(&queue, &cancelled_filenames, &quit_now));

6911

g_assert_true(quit_now);

6912

6913

/* Either read_pipe or write_pipe should be closed already */

6914

errno = 0;

6915

bool close_read_pipe = (close(read_pipe) == -1);

6916

close_read_pipe &= (errno == EBADF);

6917

errno = 0;

6918

bool close_write_pipe = (close(write_pipe) == -1);

6919

close_write_pipe &= (errno == EBADF);

6920

g_assert_true(close_read_pipe xor close_write_pipe);

6921

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6922

}

6923

6924

static void test_setup_signal_handler(__attribute__((unused))

6925

test_fixture *fixture,

6926

__attribute__((unused))

6927

gconstpointer user_data){

6928

/* Save current SIGCHLD action, whatever it is */

6929

struct sigaction expected_sigchld_action;

6930

g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),

6931

==, 0);

6932

6933

/* Act; i.e. run the setup_signal_handler() function */

6934

struct sigaction actual_old_sigchld_action;

6935

g_assert_true(setup_signal_handler(&actual_old_sigchld_action));

6936

6937

/* Check that the function correctly set "actual_old_sigchld_action"

6938

to the same values as the previously saved

6939

"expected_sigchld_action" */

6940

/* Check member sa_handler */

6941

g_assert_true(actual_old_sigchld_action.sa_handler

6942

== expected_sigchld_action.sa_handler);

6943

/* Check member sa_mask */

6944

for(int signum = 1; signum < NSIG; signum++){

6945

const int expected_old_block_state

6946

= sigismember(&expected_sigchld_action.sa_mask, signum);

6947

g_assert_cmpint(expected_old_block_state, >=, 0);

6948

const int actual_old_block_state

6949

= sigismember(&actual_old_sigchld_action.sa_mask, signum);

6950

g_assert_cmpint(actual_old_block_state, >=, 0);

6951

g_assert_cmpint(actual_old_block_state,

6952

==, expected_old_block_state);

6953

}

6954

/* Check member sa_flags */

6955

g_assert_true((actual_old_sigchld_action.sa_flags

6956

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

6957

== (expected_sigchld_action.sa_flags

6958

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));

6959

6960

/* Retrieve the current signal handler for SIGCHLD as set by

6961

setup_signal_handler() */

6962

struct sigaction actual_new_sigchld_action;

6963

g_assert_cmpint(sigaction(SIGCHLD, NULL,

6964

&actual_new_sigchld_action), ==, 0);

6965

/* Check that the signal handler (member sa_handler) is correctly

6966

set to the "handle_sigchld" function */

6967

g_assert_true(actual_new_sigchld_action.sa_handler != SIG_DFL);

6968

g_assert_true(actual_new_sigchld_action.sa_handler != SIG_IGN);

6969

g_assert_true(actual_new_sigchld_action.sa_handler

6970

== handle_sigchld);

6971

/* Check (in member sa_mask) that at least a handful of signals are

6972

actually blocked during the signal handler */

6973

for(int signum = 1; signum < NSIG; signum++){

6974

int actual_new_block_state;

6975

switch(signum){

6976

case SIGTERM:

6977

case SIGINT:

6978

case SIGQUIT:

6979

case SIGHUP:

6980

actual_new_block_state

6981

= sigismember(&actual_new_sigchld_action.sa_mask, signum);

6982

g_assert_cmpint(actual_new_block_state, ==, 1);

6983

continue;

6984

case SIGKILL: /* non-blockable */

6985

case SIGSTOP: /* non-blockable */

6986

case SIGCHLD: /* always blocked */

6987

default:

6988

continue;

6989

}

6990

}

6991

/* Check member sa_flags */

6992

g_assert_true((actual_new_sigchld_action.sa_flags

6993

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

6994

== (SA_NOCLDSTOP | SA_RESTART));

6995

6996

/* Restore signal handler */

6997

g_assert_cmpint(sigaction(SIGCHLD, &expected_sigchld_action, NULL),

6998

==, 0);

6999

}

7000

7001

static void test_restore_signal_handler(__attribute__((unused))

7002

test_fixture *fixture,

7003

__attribute__((unused))

7004

gconstpointer user_data){

7005

/* Save current SIGCHLD action, whatever it is */

7006

struct sigaction expected_sigchld_action;

7007

g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),

7008

==, 0);

7009

/* Since we haven't established a signal handler yet, there should

7010

not be one established. But another test may have relied on

7011

restore_signal_handler() to restore the signal handler, and if

7012

restore_signal_handler() is buggy (which we should be prepared

7013

for in this test) the signal handler may not have been restored

7014

properly; check for this: */

7015

g_assert_true(expected_sigchld_action.sa_handler != handle_sigchld);

7016

7017

/* Establish a signal handler */

7018

struct sigaction sigchld_action = {

7019

.sa_handler=handle_sigchld,

7020

.sa_flags=SA_RESTART | SA_NOCLDSTOP,

7021

};

7022

g_assert_cmpint(sigfillset(&sigchld_action.sa_mask), ==, 0);

7023

g_assert_cmpint(sigaction(SIGCHLD, &sigchld_action, NULL), ==, 0);

7024

7025

/* Act; i.e. run the restore_signal_handler() function */

7026

g_assert_true(restore_signal_handler(&expected_sigchld_action));

7027

7028

/* Retrieve the restored signal handler data */

7029

struct sigaction actual_restored_sigchld_action;

7030

g_assert_cmpint(sigaction(SIGCHLD, NULL,

7031

&actual_restored_sigchld_action), ==, 0);

7032

7033

/* Check that the function correctly restored the signal action, as

7034

saved in "actual_restored_sigchld_action", to the same values as

7035

the previously saved "expected_sigchld_action" */

7036

/* Check member sa_handler */

7037

g_assert_true(actual_restored_sigchld_action.sa_handler

7038

== expected_sigchld_action.sa_handler);

7039

/* Check member sa_mask */

7040

for(int signum = 1; signum < NSIG; signum++){

7041

const int expected_old_block_state

7042

= sigismember(&expected_sigchld_action.sa_mask, signum);

7043

g_assert_cmpint(expected_old_block_state, >=, 0);

7044

const int actual_restored_block_state

7045

= sigismember(&actual_restored_sigchld_action.sa_mask, signum);

7046

g_assert_cmpint(actual_restored_block_state, >=, 0);

7047

g_assert_cmpint(actual_restored_block_state,

7048

==, expected_old_block_state);

7049

}

7050

/* Check member sa_flags */

7051

g_assert_true((actual_restored_sigchld_action.sa_flags

7052

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

7053

== (expected_sigchld_action.sa_flags

7054

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));

7055

}

7056

7057

static void test_block_sigchld(__attribute__((unused))

7058

test_fixture *fixture,

7059

__attribute__((unused))

7060

gconstpointer user_data){

7061

/* Save original signal mask */

7062

sigset_t expected_sigmask;

7063

g_assert_cmpint(pthread_sigmask(-1, NULL, &expected_sigmask),

7064

==, 0);

7065

7066

/* Make sure SIGCHLD is unblocked for this test */

7067

sigset_t sigchld_sigmask;

7068

g_assert_cmpint(sigemptyset(&sigchld_sigmask), ==, 0);

7069

g_assert_cmpint(sigaddset(&sigchld_sigmask, SIGCHLD), ==, 0);

7070

g_assert_cmpint(pthread_sigmask(SIG_UNBLOCK, &sigchld_sigmask,

7071

NULL), ==, 0);

7072

7073

/* Act; i.e. run the block_sigchld() function */

7074

sigset_t actual_old_sigmask;

7075

g_assert_true(block_sigchld(&actual_old_sigmask));

7076

7077

/* Check the actual_old_sigmask; it should be the same as the

7078

previously saved signal mask "expected_sigmask". */

7079

for(int signum = 1; signum < NSIG; signum++){

7080

const int expected_old_block_state

7081

= sigismember(&expected_sigmask, signum);

7082

g_assert_cmpint(expected_old_block_state, >=, 0);

7083

const int actual_old_block_state

7084

= sigismember(&actual_old_sigmask, signum);

7085

g_assert_cmpint(actual_old_block_state, >=, 0);

7086

g_assert_cmpint(actual_old_block_state,

7087

==, expected_old_block_state);

7088

}

7089

7090

/* Retrieve the newly set signal mask */

7091

sigset_t actual_sigmask;

7092

g_assert_cmpint(pthread_sigmask(-1, NULL, &actual_sigmask), ==, 0);

7093

7094

/* SIGCHLD should be blocked */

7095

g_assert_cmpint(sigismember(&actual_sigmask, SIGCHLD), ==, 1);

7096

7097

/* Restore signal mask */

7098

g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &expected_sigmask,

7099

NULL), ==, 0);

7100

}

7101

7102

static void test_restore_sigmask(__attribute__((unused))

7103

test_fixture *fixture,

7104

__attribute__((unused))

7105

gconstpointer user_data){

7106

/* Save original signal mask */

7107

sigset_t orig_sigmask;

7108

g_assert_cmpint(pthread_sigmask(-1, NULL, &orig_sigmask), ==, 0);

7109

7110

/* Make sure SIGCHLD is blocked for this test */

7111

sigset_t sigchld_sigmask;

7112

g_assert_cmpint(sigemptyset(&sigchld_sigmask), ==, 0);

7113

g_assert_cmpint(sigaddset(&sigchld_sigmask, SIGCHLD), ==, 0);

7114

g_assert_cmpint(pthread_sigmask(SIG_BLOCK, &sigchld_sigmask,

7115

NULL), ==, 0);

7116

7117

/* Act; i.e. run the restore_sigmask() function */

7118

g_assert_true(restore_sigmask(&orig_sigmask));

7119

7120

/* Retrieve the newly restored signal mask */

7121

sigset_t restored_sigmask;

7122

g_assert_cmpint(pthread_sigmask(-1, NULL, &restored_sigmask),

7123

==, 0);

7124

7125

/* Check the restored_sigmask; it should be the same as the

7126

previously saved signal mask "orig_sigmask". */

7127

for(int signum = 1; signum < NSIG; signum++){

7128

const int orig_block_state = sigismember(&orig_sigmask, signum);

7129

g_assert_cmpint(orig_block_state, >=, 0);

7130

const int restored_block_state = sigismember(&restored_sigmask,

7131

signum);

7132

g_assert_cmpint(restored_block_state, >=, 0);

7133

g_assert_cmpint(restored_block_state, ==, orig_block_state);

7134

}

7135

7136

/* Restore signal mask */

7137

g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &orig_sigmask,

7138

NULL), ==, 0);

7139

}

7140

7141

static void test_parse_arguments_noargs(__attribute__((unused))

7142

test_fixture *fixture,

7143

__attribute__((unused))

7144

gconstpointer user_data){

7145

char *argv[] = {

7146

strdup("prgname"),

7147

NULL };

7148

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7149

7150

char *agent_directory = NULL;

7151

char *helper_directory = NULL;

7152

uid_t user = 0;

7153

gid_t group = 0;

7154

char *mandos_argz = NULL;

7155

size_t mandos_argz_length = 0;

7156

7157

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7158

&helper_directory, &user, &group,

7159

&mandos_argz, &mandos_argz_length));

7160

g_assert_null(agent_directory);

7161

g_assert_null(helper_directory);

7162

g_assert_true(user == 0);

7163

g_assert_true(group == 0);

7164

g_assert_null(mandos_argz);

7165

g_assert_true(mandos_argz_length == 0);

7166

7167

for(char **arg = argv; *arg != NULL; arg++){

7168

free(*arg);

7169

}

7170

}

7171

7172

__attribute__((nonnull))

7173

static bool parse_arguments_devnull(int argc, char *argv[],

7174

const bool exit_failure,

7175

char **agent_directory,

7176

char **helper_directory,

7177

uid_t *const user,

7178

gid_t *const group,

7179

char **mandos_argz,

7180

size_t *mandos_argz_length){

7181

7182

FILE *real_stderr = stderr;

7183

FILE *devnull = fopen("/dev/null", "we");

7184

g_assert_nonnull(devnull);

7185

stderr = devnull;

7186

7187

const bool ret = parse_arguments(argc, argv, exit_failure,

7188

agent_directory,

7189

helper_directory, user, group,

7190

mandos_argz, mandos_argz_length);

7191

const error_t saved_errno = errno;

7192

7193

stderr = real_stderr;

7194

g_assert_cmpint(fclose(devnull), ==, 0);

7195

7196

errno = saved_errno;

7197

7198

return ret;

7199

}

7200

7201

static void test_parse_arguments_invalid(__attribute__((unused))

7202

test_fixture *fixture,

7203

__attribute__((unused))

7204

gconstpointer user_data){

7205

char *argv[] = {

7206

strdup("prgname"),

7207

strdup("--invalid"),

7208

NULL };

7209

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7210

7211

char *agent_directory = NULL;

7212

char *helper_directory = NULL;

7213

uid_t user = 0;

7214

gid_t group = 0;

7215

char *mandos_argz = NULL;

7216

size_t mandos_argz_length = 0;

7217

7218

g_assert_false(parse_arguments_devnull(argc, argv, false,

7219

&agent_directory,

7220

&helper_directory, &user,

7221

&group, &mandos_argz,

7222

&mandos_argz_length));

7223

7224

g_assert_true(errno == EINVAL);

7225

g_assert_null(agent_directory);

7226

g_assert_null(helper_directory);

7227

g_assert_null(mandos_argz);

7228

g_assert_true(mandos_argz_length == 0);

7229

7230

for(char **arg = argv; *arg != NULL; arg++){

7231

free(*arg);

7232

}

7233

}

7234

7235

static void test_parse_arguments_long_dir(__attribute__((unused))

7236

test_fixture *fixture,

7237

__attribute__((unused))

7238

gconstpointer user_data){

7239

char *argv[] = {

7240

strdup("prgname"),

7241

strdup("--agent-directory"),

7242

strdup("/tmp"),

7243

NULL };

7244

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7245

7246

__attribute__((cleanup(cleanup_string)))

7247

char *agent_directory = NULL;

7248

char *helper_directory = NULL;

7249

uid_t user = 0;

7250

gid_t group = 0;

7251

__attribute__((cleanup(cleanup_string)))

7252

char *mandos_argz = NULL;

7253

size_t mandos_argz_length = 0;

7254

7255

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7256

&helper_directory, &user, &group,

7257

&mandos_argz, &mandos_argz_length));

7258

7259

g_assert_cmpstr(agent_directory, ==, "/tmp");

7260

g_assert_null(helper_directory);

7261

g_assert_true(user == 0);

7262

g_assert_true(group == 0);

7263

g_assert_null(mandos_argz);

7264

g_assert_true(mandos_argz_length == 0);

7265

7266

for(char **arg = argv; *arg != NULL; arg++){

7267

free(*arg);

7268

}

7269

}

7270

7271

static void test_parse_arguments_short_dir(__attribute__((unused))

7272

test_fixture *fixture,

7273

__attribute__((unused))

7274

gconstpointer user_data){

7275

char *argv[] = {

7276

strdup("prgname"),

7277

strdup("-d"),

7278

strdup("/tmp"),

7279

NULL };

7280

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7281

7282

__attribute__((cleanup(cleanup_string)))

7283

char *agent_directory = NULL;

7284

char *helper_directory = NULL;

7285

uid_t user = 0;

7286

gid_t group = 0;

7287

__attribute__((cleanup(cleanup_string)))

7288

char *mandos_argz = NULL;

7289

size_t mandos_argz_length = 0;

7290

7291

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7292

&helper_directory, &user, &group,

7293

&mandos_argz, &mandos_argz_length));

7294

7295

g_assert_cmpstr(agent_directory, ==, "/tmp");

7296

g_assert_null(helper_directory);

7297

g_assert_true(user == 0);

7298

g_assert_true(group == 0);

7299

g_assert_null(mandos_argz);

7300

g_assert_true(mandos_argz_length == 0);

7301

7302

for(char **arg = argv; *arg != NULL; arg++){

7303

free(*arg);

7304

}

7305

}

7306

7307

static

7308

void test_parse_arguments_helper_directory(__attribute__((unused))

7309

test_fixture *fixture,

7310

__attribute__((unused))

7311

gconstpointer user_data){

7312

char *argv[] = {

7313

strdup("prgname"),

7314

strdup("--helper-directory"),

7315

strdup("/tmp"),

7316

NULL };

7317

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7318

7319

char *agent_directory = NULL;

7320

__attribute__((cleanup(cleanup_string)))

7321

char *helper_directory = NULL;

7322

uid_t user = 0;

7323

gid_t group = 0;

7324

__attribute__((cleanup(cleanup_string)))

7325

char *mandos_argz = NULL;

7326

size_t mandos_argz_length = 0;

7327

7328

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7329

&helper_directory, &user, &group,

7330

&mandos_argz, &mandos_argz_length));

7331

7332

g_assert_cmpstr(helper_directory, ==, "/tmp");

7333

g_assert_null(agent_directory);

7334

g_assert_true(user == 0);

7335

g_assert_true(group == 0);

7336

g_assert_null(mandos_argz);

7337

g_assert_true(mandos_argz_length == 0);

7338

7339

for(char **arg = argv; *arg != NULL; arg++){

7340

free(*arg);

7341

}

7342

}

7343

7344

static

7345

void test_parse_arguments_plugin_helper_dir(__attribute__((unused))

7346

test_fixture *fixture,

7347

__attribute__((unused))

7348

gconstpointer user_data){

7349

char *argv[] = {

7350

strdup("prgname"),

7351

strdup("--plugin-helper-dir"),

7352

strdup("/tmp"),

7353

NULL };

7354

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7355

7356

char *agent_directory = NULL;

7357

__attribute__((cleanup(cleanup_string)))

7358

char *helper_directory = NULL;

7359

uid_t user = 0;

7360

gid_t group = 0;

7361

__attribute__((cleanup(cleanup_string)))

7362

char *mandos_argz = NULL;

7363

size_t mandos_argz_length = 0;

7364

7365

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7366

&helper_directory, &user, &group,

7367

&mandos_argz, &mandos_argz_length));

7368

7369

g_assert_cmpstr(helper_directory, ==, "/tmp");

7370

g_assert_null(agent_directory);

7371

g_assert_true(user == 0);

7372

g_assert_true(group == 0);

7373

g_assert_null(mandos_argz);

7374

g_assert_true(mandos_argz_length == 0);

7375

7376

for(char **arg = argv; *arg != NULL; arg++){

7377

free(*arg);

7378

}

7379

}

7380

7381

static void test_parse_arguments_user(__attribute__((unused))

7382

test_fixture *fixture,

7383

__attribute__((unused))

7384

gconstpointer user_data){

7385

char *argv[] = {

7386

strdup("prgname"),

7387

strdup("--user"),

7388

strdup("1000"),

7389

NULL };

7390

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7391

7392

char *agent_directory = NULL;

7393

__attribute__((cleanup(cleanup_string)))

7394

char *helper_directory = NULL;

7395

uid_t user = 0;

7396

gid_t group = 0;

7397

__attribute__((cleanup(cleanup_string)))

7398

char *mandos_argz = NULL;

7399

size_t mandos_argz_length = 0;

7400

7401

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7402

&helper_directory, &user, &group,

7403

&mandos_argz, &mandos_argz_length));

7404

7405

g_assert_null(helper_directory);

7406

g_assert_null(agent_directory);

7407

g_assert_cmpuint((unsigned int)user, ==, 1000);

7408

g_assert_true(group == 0);

7409

g_assert_null(mandos_argz);

7410

g_assert_true(mandos_argz_length == 0);

7411

7412

for(char **arg = argv; *arg != NULL; arg++){

7413

free(*arg);

7414

}

7415

}

7416

7417

static void test_parse_arguments_user_invalid(__attribute__((unused))

7418

test_fixture *fixture,

7419

__attribute__((unused))

7420

gconstpointer

7421

user_data){

7422

char *argv[] = {

7423

strdup("prgname"),

7424

strdup("--user"),

7425

strdup("invalid"),

7426

NULL };

7427

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7428

7429

char *agent_directory = NULL;

7430

__attribute__((cleanup(cleanup_string)))

7431

char *helper_directory = NULL;

7432

uid_t user = 0;

7433

gid_t group = 0;

7434

__attribute__((cleanup(cleanup_string)))

7435

char *mandos_argz = NULL;

7436

size_t mandos_argz_length = 0;

7437

7438

g_assert_false(parse_arguments_devnull(argc, argv, false,

7439

&agent_directory,

7440

&helper_directory, &user,

7441

&group, &mandos_argz,

7442

&mandos_argz_length));

7443

7444

g_assert_null(helper_directory);

7445

g_assert_null(agent_directory);

7446

g_assert_cmpuint((unsigned int)user, ==, 0);

7447

g_assert_true(group == 0);

7448

g_assert_null(mandos_argz);

7449

g_assert_true(mandos_argz_length == 0);

7450

7451

for(char **arg = argv; *arg != NULL; arg++){

7452

free(*arg);

7453

}

7454

}

7455

7456

static

7457

void test_parse_arguments_user_zero_invalid(__attribute__((unused))

7458

test_fixture *fixture,

7459

__attribute__((unused))

7460

gconstpointer user_data){

7461

char *argv[] = {

7462

strdup("prgname"),

7463

strdup("--user"),

7464

strdup("0"),

7465

NULL };

7466

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7467

7468

char *agent_directory = NULL;

7469

__attribute__((cleanup(cleanup_string)))

7470

char *helper_directory = NULL;

7471

uid_t user = 0;

7472

gid_t group = 0;

7473

__attribute__((cleanup(cleanup_string)))

7474

char *mandos_argz = NULL;

7475

size_t mandos_argz_length = 0;

7476

7477

g_assert_false(parse_arguments_devnull(argc, argv, false,

7478

&agent_directory,

7479

&helper_directory, &user,

7480

&group, &mandos_argz,

7481

&mandos_argz_length));

7482

7483

g_assert_null(helper_directory);

7484

g_assert_null(agent_directory);

7485

g_assert_cmpuint((unsigned int)user, ==, 0);

7486

g_assert_true(group == 0);

7487

g_assert_null(mandos_argz);

7488

g_assert_true(mandos_argz_length == 0);

7489

7490

for(char **arg = argv; *arg != NULL; arg++){

7491

free(*arg);

7492

}

7493

}

7494

7495

static void test_parse_arguments_group(__attribute__((unused))

7496

test_fixture *fixture,

7497

__attribute__((unused))

7498

gconstpointer user_data){

7499

char *argv[] = {

7500

strdup("prgname"),

7501

strdup("--group"),

7502

strdup("1000"),

7503

NULL };

7504

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7505

7506

char *agent_directory = NULL;

7507

__attribute__((cleanup(cleanup_string)))

7508

char *helper_directory = NULL;

7509

uid_t user = 0;

7510

gid_t group = 0;

7511

__attribute__((cleanup(cleanup_string)))

7512

char *mandos_argz = NULL;

7513

size_t mandos_argz_length = 0;

7514

7515

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7516

&helper_directory, &user, &group,

7517

&mandos_argz, &mandos_argz_length));

7518

7519

g_assert_null(helper_directory);

7520

g_assert_null(agent_directory);

7521

g_assert_true(user == 0);

7522

g_assert_cmpuint((unsigned int)group, ==, 1000);

7523

g_assert_null(mandos_argz);

7524

g_assert_true(mandos_argz_length == 0);

7525

7526

for(char **arg = argv; *arg != NULL; arg++){

7527

free(*arg);

7528

}

7529

}

7530

7531

static void test_parse_arguments_group_invalid(__attribute__((unused))

7532

test_fixture *fixture,

7533

__attribute__((unused))

7534

gconstpointer

7535

user_data){

7536

char *argv[] = {

7537

strdup("prgname"),

7538

strdup("--group"),

7539

strdup("invalid"),

7540

NULL };

7541

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7542

7543

char *agent_directory = NULL;

7544

__attribute__((cleanup(cleanup_string)))

7545

char *helper_directory = NULL;

7546

uid_t user = 0;

7547

gid_t group = 0;

7548

__attribute__((cleanup(cleanup_string)))

7549

char *mandos_argz = NULL;

7550

size_t mandos_argz_length = 0;

7551

7552

g_assert_false(parse_arguments_devnull(argc, argv, false,

7553

&agent_directory,

7554

&helper_directory, &user,

7555

&group, &mandos_argz,

7556

&mandos_argz_length));

7557

7558

g_assert_null(helper_directory);

7559

g_assert_null(agent_directory);

7560

g_assert_true(user == 0);

7561

g_assert_true(group == 0);

7562

g_assert_null(mandos_argz);

7563

g_assert_true(mandos_argz_length == 0);

7564

7565

for(char **arg = argv; *arg != NULL; arg++){

7566

free(*arg);

7567

}

7568

}

7569

7570

static

7571

void test_parse_arguments_group_zero_invalid(__attribute__((unused))

7572

test_fixture *fixture,

7573

__attribute__((unused))

7574

gconstpointer user_data){

7575

char *argv[] = {

7576

strdup("prgname"),

7577

strdup("--group"),

7578

strdup("0"),

7579

NULL };

7580

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7581

7582

char *agent_directory = NULL;

7583

__attribute__((cleanup(cleanup_string)))

7584

char *helper_directory = NULL;

7585

uid_t user = 0;

7586

gid_t group = 0;

7587

__attribute__((cleanup(cleanup_string)))

7588

char *mandos_argz = NULL;

7589

size_t mandos_argz_length = 0;

7590

7591

g_assert_false(parse_arguments_devnull(argc, argv, false,

7592

&agent_directory,

7593

&helper_directory, &user,

7594

&group, &mandos_argz,

7595

&mandos_argz_length));

7596

7597

g_assert_null(helper_directory);

7598

g_assert_null(agent_directory);

7599

g_assert_cmpuint((unsigned int)group, ==, 0);

7600

g_assert_true(group == 0);

7601

g_assert_null(mandos_argz);

7602

g_assert_true(mandos_argz_length == 0);

7603

7604

for(char **arg = argv; *arg != NULL; arg++){

7605

free(*arg);

7606

}

7607

}

7608

7609

static void test_parse_arguments_mandos_noargs(__attribute__((unused))

7610

test_fixture *fixture,

7611

__attribute__((unused))

7612

gconstpointer

7613

user_data){

7614

char *argv[] = {

7615

strdup("prgname"),

7616

strdup("mandos-client"),

7617

NULL };

7618

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7619

7620

__attribute__((cleanup(cleanup_string)))

7621

char *agent_directory = NULL;

7622

__attribute__((cleanup(cleanup_string)))

7623

char *helper_directory = NULL;

7624

uid_t user = 0;

7625

gid_t group = 0;

7626

__attribute__((cleanup(cleanup_string)))

7627

char *mandos_argz = NULL;

7628

size_t mandos_argz_length = 0;

7629

7630

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7631

&helper_directory, &user, &group,

7632

&mandos_argz, &mandos_argz_length));

7633

7634

g_assert_null(agent_directory);

7635

g_assert_null(helper_directory);

7636

g_assert_true(user == 0);

7637

g_assert_true(group == 0);

7638

g_assert_cmpstr(mandos_argz, ==, "mandos-client");

7639

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7640

mandos_argz_length),

7641

==, 1);

7642

7643

for(char **arg = argv; *arg != NULL; arg++){

7644

free(*arg);

7645

}

7646

}

7647

7648

static void test_parse_arguments_mandos_args(__attribute__((unused))

7649

test_fixture *fixture,

7650

__attribute__((unused))

7651

gconstpointer user_data){

7652

char *argv[] = {

7653

strdup("prgname"),

7654

strdup("mandos-client"),

7655

strdup("one"),

7656

strdup("two"),

7657

strdup("three"),

7658

NULL };

7659

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7660

7661

__attribute__((cleanup(cleanup_string)))

7662

char *agent_directory = NULL;

7663

__attribute__((cleanup(cleanup_string)))

7664

char *helper_directory = NULL;

7665

uid_t user = 0;

7666

gid_t group = 0;

7667

__attribute__((cleanup(cleanup_string)))

7668

char *mandos_argz = NULL;

7669

size_t mandos_argz_length = 0;

7670

7671

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7672

&helper_directory, &user, &group,

7673

&mandos_argz, &mandos_argz_length));

7674

7675

g_assert_null(agent_directory);

7676

g_assert_null(helper_directory);

7677

g_assert_true(user == 0);

7678

g_assert_true(group == 0);

7679

char *marg = mandos_argz;

7680

g_assert_cmpstr(marg, ==, "mandos-client");

7681

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7682

g_assert_cmpstr(marg, ==, "one");

7683

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7684

g_assert_cmpstr(marg, ==, "two");

7685

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7686

g_assert_cmpstr(marg, ==, "three");

7687

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7688

mandos_argz_length),

7689

==, 4);

7690

7691

for(char **arg = argv; *arg != NULL; arg++){

7692

free(*arg);

7693

}

7694

}

7695

7696

static void test_parse_arguments_all_args(__attribute__((unused))

7697

test_fixture *fixture,

7698

__attribute__((unused))

7699

gconstpointer user_data){

7700

char *argv[] = {

7701

strdup("prgname"),

7702

strdup("--agent-directory"),

7703

strdup("/tmp"),

7704

strdup("--helper-directory"),

7705

strdup("/var/tmp"),

7706

strdup("--user"),

7707

strdup("1"),

7708

strdup("--group"),

7709

strdup("2"),

7710

strdup("mandos-client"),

7711

strdup("one"),

7712

strdup("two"),

7713

strdup("three"),

7714

NULL };

7715

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7716

7717

__attribute__((cleanup(cleanup_string)))

7718

char *agent_directory = NULL;

7719

__attribute__((cleanup(cleanup_string)))

7720

char *helper_directory = NULL;

7721

uid_t user = 0;

7722

gid_t group = 0;

7723

__attribute__((cleanup(cleanup_string)))

7724

char *mandos_argz = NULL;

7725

size_t mandos_argz_length = 0;

7726

7727

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7728

&helper_directory, &user, &group,

7729

&mandos_argz, &mandos_argz_length));

7730

7731

g_assert_cmpstr(agent_directory, ==, "/tmp");

7732

g_assert_cmpstr(helper_directory, ==, "/var/tmp");

7733

g_assert_true(user == 1);

7734

g_assert_true(group == 2);

7735

char *marg = mandos_argz;

7736

g_assert_cmpstr(marg, ==, "mandos-client");

7737

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7738

g_assert_cmpstr(marg, ==, "one");

7739

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7740

g_assert_cmpstr(marg, ==, "two");

7741

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7742

g_assert_cmpstr(marg, ==, "three");

7743

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7744

mandos_argz_length),

7745

==, 4);

7746

7747

for(char **arg = argv; *arg != NULL; arg++){

7748

free(*arg);

7749

}

7750

}

7751

7752

static void test_parse_arguments_mixed(__attribute__((unused))

7753

test_fixture *fixture,

7754

__attribute__((unused))

7755

gconstpointer user_data){

7756

char *argv[] = {

7757

strdup("prgname"),

7758

strdup("mandos-client"),

7759

strdup("--user"),

7760

strdup("1"),

7761

strdup("one"),

7762

strdup("--agent-directory"),

7763

strdup("/tmp"),

7764

strdup("two"),

7765

strdup("three"),

7766

strdup("--helper-directory=/var/tmp"),

7767

NULL };

7768

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7769

7770

__attribute__((cleanup(cleanup_string)))

7771

char *agent_directory = NULL;

7772

__attribute__((cleanup(cleanup_string)))

7773

char *helper_directory = NULL;

7774

uid_t user = 0;

7775

gid_t group = 0;

7776

__attribute__((cleanup(cleanup_string)))

7777

char *mandos_argz = NULL;

7778

size_t mandos_argz_length = 0;

7779

7780

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7781

&helper_directory, &user, &group,

7782

&mandos_argz, &mandos_argz_length));

7783

7784

g_assert_cmpstr(agent_directory, ==, "/tmp");

7785

g_assert_cmpstr(helper_directory, ==, "/var/tmp");

7786

g_assert_true(user == 1);

7787

g_assert_true(group == 0);

7788

char *marg = mandos_argz;

7789

g_assert_cmpstr(marg, ==, "mandos-client");

7790

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7791

g_assert_cmpstr(marg, ==, "one");

7792

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7793

g_assert_cmpstr(marg, ==, "two");

7794

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7795

g_assert_cmpstr(marg, ==, "three");

7796

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7797

mandos_argz_length),

7798

==, 4);

7799

7800

for(char **arg = argv; *arg != NULL; arg++){

7801

free(*arg);

7802

}

7803

}

7804

7805

/* End of tests section */

7806

7807

/* Test boilerplate section; New tests should be added to the test

7808

suite definition here, in the "run_tests" function.

7809

7810

Finally, this section also contains the should_only_run_tests()

7811

function used by main() for deciding if tests should be run or to

7812

start normally. */

7813

7814

__attribute__((cold))

7815

static bool run_tests(int argc, char *argv[]){

7816

g_test_init(&argc, &argv, NULL);

7817

7818

/* A macro to add a test with no setup or teardown functions */

7819

#define test_add(testpath, testfunc) \

7820

do { \

7821

g_test_add((testpath), test_fixture, NULL, NULL, \

7822

(testfunc), NULL); \

7823

} while(false)

7824

7825

/* Test the signal-related functions first, since some other tests

7826

depend on these functions in their setups and teardowns */

7827

test_add("/signal-handling/setup", test_setup_signal_handler);

7828

test_add("/signal-handling/restore", test_restore_signal_handler);

7829

test_add("/signal-handling/block", test_block_sigchld);

7830

test_add("/signal-handling/restore-sigmask", test_restore_sigmask);

7831

7832

/* Regular non-signal-related tests; these use no setups or

7833

teardowns */

7834

test_add("/parse_arguments/noargs", test_parse_arguments_noargs);

7835

test_add("/parse_arguments/invalid", test_parse_arguments_invalid);

7836

test_add("/parse_arguments/long-dir",

7837

test_parse_arguments_long_dir);

7838

test_add("/parse_arguments/short-dir",

7839

test_parse_arguments_short_dir);

7840

test_add("/parse_arguments/helper-directory",

7841

test_parse_arguments_helper_directory);

7842

test_add("/parse_arguments/plugin-helper-dir",

7843

test_parse_arguments_plugin_helper_dir);

7844

test_add("/parse_arguments/user", test_parse_arguments_user);

7845

test_add("/parse_arguments/user-invalid",

7846

test_parse_arguments_user_invalid);

7847

test_add("/parse_arguments/user-zero-invalid",

7848

test_parse_arguments_user_zero_invalid);

7849

test_add("/parse_arguments/group", test_parse_arguments_group);

7850

test_add("/parse_arguments/group-invalid",

7851

test_parse_arguments_group_invalid);

7852

test_add("/parse_arguments/group-zero-invalid",

7853

test_parse_arguments_group_zero_invalid);

7854

test_add("/parse_arguments/mandos-noargs",

7855

test_parse_arguments_mandos_noargs);

7856

test_add("/parse_arguments/mandos-args",

7857

test_parse_arguments_mandos_args);

7858

test_add("/parse_arguments/all-args",

7859

test_parse_arguments_all_args);

7860

test_add("/parse_arguments/mixed", test_parse_arguments_mixed);

7861

test_add("/queue/create", test_create_queue);

7862

test_add("/queue/add", test_add_to_queue);

7863

test_add("/queue/has_question/empty",

7864

test_queue_has_question_empty);

7865

test_add("/queue/has_question/false",

7866

test_queue_has_question_false);

7867

test_add("/queue/has_question/true", test_queue_has_question_true);

7868

test_add("/queue/has_question/false2",

7869

test_queue_has_question_false2);

7870

test_add("/queue/has_question/true2",

7871

test_queue_has_question_true2);

7872

test_add("/buffer/cleanup", test_cleanup_buffer);

7873

test_add("/string_set/net-set-contains-nothing",

7874

test_string_set_new_set_contains_nothing);

7875

test_add("/string_set/with-added-string-contains-it",

7876

test_string_set_with_added_string_contains_it);

7877

test_add("/string_set/cleared-does-not-contain-string",

7878

test_string_set_cleared_does_not_contain_str);

7879

test_add("/string_set/swap/one-with-empty",

7880

test_string_set_swap_one_with_empty);

7881

test_add("/string_set/swap/empty-with-one",

7882

test_string_set_swap_empty_with_one);

7883

test_add("/string_set/swap/one-with-one",

7884

test_string_set_swap_one_with_one);

7885

7886

/* A macro to add a test using the setup and teardown functions */

7887

#define test_add_st(path, func) \

7888

do { \

7889

g_test_add((path), test_fixture, NULL, test_setup, (func), \

7890

test_teardown); \

7891

} while(false)

7892

7893

/* Signal-related tests; these use setups and teardowns which

7894

establish, during each test run, a signal handler for, and a

7895

signal mask blocking, the SIGCHLD signal, just like main() */

7896

test_add_st("/wait_for_event/timeout", test_wait_for_event_timeout);

7897

test_add_st("/wait_for_event/event", test_wait_for_event_event);

7898

test_add_st("/wait_for_event/sigchld", test_wait_for_event_sigchld);

7899

test_add_st("/run_queue/zeroes-next-run",

7900

test_run_queue_zeroes_next_run);

7901

test_add_st("/run_queue/clears-cancelled_filenames",

7902

test_run_queue_clears_cancelled_filenames);

7903

test_add_st("/run_queue/skips-cancelled-filenames",

7904

test_run_queue_skips_cancelled_filenames);

7905

test_add_st("/run_queue/one-task", test_run_queue_one_task);

7906

test_add_st("/run_queue/two-tasks", test_run_queue_two_tasks);

7907

test_add_st("/run_queue/two-tasks/quit",

7908

test_run_queue_two_tasks_quit);

7909

test_add_st("/run_queue/two-tasks-cleanup",

7910

test_run_queue_two_tasks_cleanup);

7911

test_add_st("/task-creators/start_mandos_client",

7912

test_start_mandos_client);

7913

test_add_st("/task-creators/start_mandos_client/execv",

7914

test_start_mandos_client_execv);

7915

test_add_st("/task-creators/start_mandos_client/suid/euid",

7916

test_start_mandos_client_suid_euid);

7917

test_add_st("/task-creators/start_mandos_client/suid/egid",

7918

test_start_mandos_client_suid_egid);

7919

test_add_st("/task-creators/start_mandos_client/suid/ruid",

7920

test_start_mandos_client_suid_ruid);

7921

test_add_st("/task-creators/start_mandos_client/suid/rgid",

7922

test_start_mandos_client_suid_rgid);

7923

test_add_st("/task-creators/start_mandos_client/read",

7924

test_start_mandos_client_read);

7925

test_add_st("/task-creators/start_mandos_client/helper-directory",

7926

test_start_mandos_client_helper_directory);

7927

test_add_st("/task-creators/start_mandos_client/sigmask",

7928

test_start_mandos_client_sigmask);

7929

test_add_st("/task/wait_for_mandos_client_exit/badpid",

7930

test_wait_for_mandos_client_exit_badpid);

7931

test_add_st("/task/wait_for_mandos_client_exit/noexit",

7932

test_wait_for_mandos_client_exit_noexit);

7933

test_add_st("/task/wait_for_mandos_client_exit/success",

7934

test_wait_for_mandos_client_exit_success);

7935

test_add_st("/task/wait_for_mandos_client_exit/failure",

7936

test_wait_for_mandos_client_exit_failure);

7937

test_add_st("/task/wait_for_mandos_client_exit/killed",

7938

test_wait_for_mandos_client_exit_killed);

7939

test_add_st("/task/read_mandos_client_output/readerror",

7940

test_read_mandos_client_output_readerror);

7941

test_add_st("/task/read_mandos_client_output/nodata",

7942

test_read_mandos_client_output_nodata);

7943

test_add_st("/task/read_mandos_client_output/eof",

7944

test_read_mandos_client_output_eof);

7945

test_add_st("/task/read_mandos_client_output/once",

7946

test_read_mandos_client_output_once);

7947

test_add_st("/task/read_mandos_client_output/malloc",

7948

test_read_mandos_client_output_malloc);

7949

test_add_st("/task/read_mandos_client_output/append",

7950

test_read_mandos_client_output_append);

7951

test_add_st("/task-creators/add_inotify_dir_watch",

7952

test_add_inotify_dir_watch);

7953

test_add_st("/task-creators/add_inotify_dir_watch/fail",

7954

test_add_inotify_dir_watch_fail);

7955

test_add_st("/task-creators/add_inotify_dir_watch/not-a-directory",

7956

test_add_inotify_dir_watch_nondir);

7957

test_add_st("/task-creators/add_inotify_dir_watch/EAGAIN",

7958

test_add_inotify_dir_watch_EAGAIN);

7959

test_add_st("/task-creators/add_inotify_dir_watch/IN_CLOSE_WRITE",

7960

test_add_inotify_dir_watch_IN_CLOSE_WRITE);

7961

test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_TO",

7962

test_add_inotify_dir_watch_IN_MOVED_TO);

7963

test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_FROM",

7964

test_add_inotify_dir_watch_IN_MOVED_FROM);

7965

test_add_st("/task-creators/add_inotify_dir_watch/IN_EXCL_UNLINK",

7966

test_add_inotify_dir_watch_IN_EXCL_UNLINK);

7967

test_add_st("/task-creators/add_inotify_dir_watch/IN_DELETE",

7968

test_add_inotify_dir_watch_IN_DELETE);

7969

test_add_st("/task/read_inotify_event/readerror",

7970

test_read_inotify_event_readerror);

7971

test_add_st("/task/read_inotify_event/bad-epoll",

7972

test_read_inotify_event_bad_epoll);

7973

test_add_st("/task/read_inotify_event/nodata",

7974

test_read_inotify_event_nodata);

7975

test_add_st("/task/read_inotify_event/eof",

7976

test_read_inotify_event_eof);

7977

test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE",

7978

test_read_inotify_event_IN_CLOSE_WRITE);

7979

test_add_st("/task/read_inotify_event/IN_MOVED_TO",

7980

test_read_inotify_event_IN_MOVED_TO);

7981

test_add_st("/task/read_inotify_event/IN_MOVED_FROM",

7982

test_read_inotify_event_IN_MOVED_FROM);

7983

test_add_st("/task/read_inotify_event/IN_DELETE",

7984

test_read_inotify_event_IN_DELETE);

7985

test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE/badname",

7986

test_read_inotify_event_IN_CLOSE_WRITE_badname);

7987

test_add_st("/task/read_inotify_event/IN_MOVED_TO/badname",

7988

test_read_inotify_event_IN_MOVED_TO_badname);

7989

test_add_st("/task/read_inotify_event/IN_MOVED_FROM/badname",

7990

test_read_inotify_event_IN_MOVED_FROM_badname);

7991

test_add_st("/task/read_inotify_event/IN_DELETE/badname",

7992

test_read_inotify_event_IN_DELETE_badname);

7993

test_add_st("/task/open_and_parse_question/ENOENT",

7994

test_open_and_parse_question_ENOENT);

7995

test_add_st("/task/open_and_parse_question/EIO",

7996

test_open_and_parse_question_EIO);

7997

test_add_st("/task/open_and_parse_question/parse-error",

7998

test_open_and_parse_question_parse_error);

7999

test_add_st("/task/open_and_parse_question/nosocket",

8000

test_open_and_parse_question_nosocket);

8001

test_add_st("/task/open_and_parse_question/badsocket",

8002

test_open_and_parse_question_badsocket);

8003

test_add_st("/task/open_and_parse_question/nopid",

8004

test_open_and_parse_question_nopid);

8005

test_add_st("/task/open_and_parse_question/badpid",

8006

test_open_and_parse_question_badpid);

8007

test_add_st("/task/open_and_parse_question/noexist_pid",

8008

test_open_and_parse_question_noexist_pid);

8009

test_add_st("/task/open_and_parse_question/no-notafter",

8010

test_open_and_parse_question_no_notafter);

8011

test_add_st("/task/open_and_parse_question/bad-notafter",

8012

test_open_and_parse_question_bad_notafter);

8013

test_add_st("/task/open_and_parse_question/notafter-0",

8014

test_open_and_parse_question_notafter_0);

8015

test_add_st("/task/open_and_parse_question/notafter-1",

8016

test_open_and_parse_question_notafter_1);

8017

test_add_st("/task/open_and_parse_question/notafter-1-1",

8018

test_open_and_parse_question_notafter_1_1);

8019

test_add_st("/task/open_and_parse_question/notafter-1-2",

8020

test_open_and_parse_question_notafter_1_2);

8021

test_add_st("/task/open_and_parse_question/equal-notafter",

8022

test_open_and_parse_question_equal_notafter);

8023

test_add_st("/task/open_and_parse_question/late-notafter",

8024

test_open_and_parse_question_late_notafter);

8025

test_add_st("/task/cancel_old_question/0-1-2",

8026

test_cancel_old_question_0_1_2);

8027

test_add_st("/task/cancel_old_question/0-2-1",

8028

test_cancel_old_question_0_2_1);

8029

test_add_st("/task/cancel_old_question/1-2-3",

8030

test_cancel_old_question_1_2_3);

8031

test_add_st("/task/cancel_old_question/1-3-2",

8032

test_cancel_old_question_1_3_2);

8033

test_add_st("/task/cancel_old_question/2-1-3",

8034

test_cancel_old_question_2_1_3);

8035

test_add_st("/task/cancel_old_question/2-3-1",

8036

test_cancel_old_question_2_3_1);

8037

test_add_st("/task/cancel_old_question/3-1-2",

8038

test_cancel_old_question_3_1_2);

8039

test_add_st("/task/cancel_old_question/3-2-1",

8040

test_cancel_old_question_3_2_1);

8041

test_add_st("/task/connect_question_socket/name-too-long",

8042

test_connect_question_socket_name_too_long);

8043

test_add_st("/task/connect_question_socket/connect-fail",

8044

test_connect_question_socket_connect_fail);

8045

test_add_st("/task/connect_question_socket/bad-epoll",

8046

test_connect_question_socket_bad_epoll);

8047

test_add_st("/task/connect_question_socket/usable",

8048

test_connect_question_socket_usable);

8049

test_add_st("/task/send_password_to_socket/client-not-exited",

8050

test_send_password_to_socket_client_not_exited);

8051

test_add_st("/task/send_password_to_socket/password-not-read",

8052

test_send_password_to_socket_password_not_read);

8053

test_add_st("/task/send_password_to_socket/EMSGSIZE",

8054

test_send_password_to_socket_EMSGSIZE);

8055

test_add_st("/task/send_password_to_socket/retry",

8056

test_send_password_to_socket_retry);

8057

test_add_st("/task/send_password_to_socket/bad-epoll",

8058

test_send_password_to_socket_bad_epoll);

8059

test_add_st("/task/send_password_to_socket/null-password",

8060

test_send_password_to_socket_null_password);

8061

test_add_st("/task/send_password_to_socket/empty-password",

8062

test_send_password_to_socket_empty_password);

8063

test_add_st("/task/send_password_to_socket/empty-str-password",

8064

test_send_password_to_socket_empty_str_pass);

8065

test_add_st("/task/send_password_to_socket/text-password",

8066

test_send_password_to_socket_text_password);

8067

test_add_st("/task/send_password_to_socket/binary-password",

8068

test_send_password_to_socket_binary_password);

8069

test_add_st("/task/send_password_to_socket/nuls-in-password",

8070

test_send_password_to_socket_nuls_in_password);

8071

test_add_st("/task-creators/add_existing_questions/ENOENT",

8072

test_add_existing_questions_ENOENT);

8073

test_add_st("/task-creators/add_existing_questions/no-questions",

8074

test_add_existing_questions_no_questions);

8075

test_add_st("/task-creators/add_existing_questions/one-question",

8076

test_add_existing_questions_one_question);

8077

test_add_st("/task-creators/add_existing_questions/two-questions",

8078

test_add_existing_questions_two_questions);

8079

test_add_st("/task-creators/add_existing_questions/non-questions",

8080

test_add_existing_questions_non_questions);

8081

test_add_st("/task-creators/add_existing_questions/both-types",

8082

test_add_existing_questions_both_types);

8083

8084

return g_test_run() == 0;

8085

}

8086

8087

static bool should_only_run_tests(int *argc_p, char **argv_p[]){

8088

GOptionContext *context = g_option_context_new("");

8089

8090

g_option_context_set_help_enabled(context, FALSE);

8091

g_option_context_set_ignore_unknown_options(context, TRUE);

8092

8093

gboolean run_tests = FALSE;

8094

GOptionEntry entries[] = {

8095

{ "test", 0, 0, G_OPTION_ARG_NONE,

8096

&run_tests, "Run tests", NULL },

8097

{ NULL }

8098

};

8099

g_option_context_add_main_entries(context, entries, NULL);

8100

8101

GError *error = NULL;

8102

8103

if(g_option_context_parse(context, argc_p, argv_p, &error) != TRUE){

8104

g_option_context_free(context);

8105

g_error("Failed to parse options: %s", error->message);

8106

}

8107

8108

g_option_context_free(context);

8109

return run_tests != FALSE;

8110

}