/mandos/release : revision 237.7.471

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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_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;

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__attribute__((nonnull))

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task_func connect_question_socket;

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__attribute__((nonnull))

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task_func send_password_to_socket;

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__attribute__((warn_unused_result))

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bool add_existing_questions(task_queue *const, const int,

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buffer *const, string_set *,

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const mono_microsecs *const,

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bool *const, bool *const,

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const char *const);

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__attribute__((nonnull, warn_unused_result))

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bool wait_for_event(const int, const mono_microsecs,

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const mono_microsecs);

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

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bool clear_all_fds_from_epoll_set(const int);

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mono_microsecs get_current_time(void);

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__attribute__((nonnull, warn_unused_result))

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bool setup_signal_handler(struct sigaction *const);

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__attribute__((nonnull))

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bool restore_signal_handler(const struct sigaction *const);

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__attribute__((nonnull, warn_unused_result))

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bool block_sigchld(sigset_t *const);

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__attribute__((nonnull))

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bool restore_sigmask(const sigset_t *const);

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__attribute__((nonnull))

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

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

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

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

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Code here should be as simple as possible. */

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

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

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

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291

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

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

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

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

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

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if(run_tests(argc, argv)){

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return EXIT_SUCCESS; /* All tests successful */

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}

300

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

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}

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__attribute__((cleanup(cleanup_string)))

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char *agent_directory = NULL;

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__attribute__((cleanup(cleanup_string)))

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char *helper_directory = NULL;

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uid_t user = 0;

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gid_t group = 0;

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312

__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");

323

}

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

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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 */

332

if(agent_directory == NULL){

333

agent_directory = strdup(default_agent_directory);

334

if(agent_directory == NULL){

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

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}

337

}

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if(helper_directory == NULL){

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helper_directory = strdup(default_helper_directory);

340

if(helper_directory == NULL){

341

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

342

}

343

}

344

if(user == 0){

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user = 65534; /* nobody */

346

}

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if(group == 0){

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group = 65534; /* nogroup */

349

}

350

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

351

default values */

352

if(mandos_argz == NULL){

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#ifdef __GNUC__

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#pragma GCC diagnostic push

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

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

357

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

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#pragma GCC diagnostic ignored "-Wcast-qual"

359

#endif

360

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

361

&mandos_argz_length);

362

#ifdef __GNUC__

363

#pragma GCC diagnostic pop

364

#endif

365

if(errno != 0){

366

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

367

}

368

}

369

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

370

371

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

372

mandos_argz_length)

373

+ 1) * sizeof(char *));

374

if(mandos_argv == NULL){

375

error_t saved_errno = errno;

376

free(mandos_argz);

377

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

378

}

379

argz_extract(mandos_argz, mandos_argz_length, mandos_argv);

380

381

sigset_t orig_sigmask;

382

if(not block_sigchld(&orig_sigmask)){

383

return EX_OSERR;

384

}

385

386

struct sigaction old_sigchld_action;

387

if(not setup_signal_handler(&old_sigchld_action)){

388

return EX_OSERR;

389

}

390

391

mono_microsecs current_time = 0;

392

393

bool mandos_client_exited = false;

394

bool quit_now = false;

395

__attribute__((cleanup(cleanup_close)))

396

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

397

if(epoll_fd < 0){

398

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

399

}

400

__attribute__((cleanup(cleanup_queue)))

401

task_queue *queue = create_queue();

402

if(queue == NULL){

403

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

404

}

405

406

__attribute__((cleanup(cleanup_buffer)))

407

buffer password = {};

408

bool password_is_read = false;

409

410

__attribute__((cleanup(string_set_clear)))

411

string_set cancelled_filenames = {};

412

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/* Add tasks to queue */

414

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

415

&quit_now, &password, &password_is_read,

416

&old_sigchld_action, orig_sigmask,

417

helper_directory, user, group,

418

(const char *const *)mandos_argv)){

419

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

420

}

421

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

422

needed anymore */

423

free(mandos_argv);

424

free(mandos_argz);

425

mandos_argz = NULL;

426

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

427

agent_directory, &cancelled_filenames,

428

&current_time, &mandos_client_exited,

429

&password_is_read)){

430

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

431

case EACCES:

432

case ENAMETOOLONG:

433

case ENOENT:

434

return EX_OSFILE;

435

default:

436

return EX_OSERR;

437

}

438

}

439

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

440

&cancelled_filenames, &current_time,

441

&mandos_client_exited,

442

&password_is_read, agent_directory)){

443

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

444

}

445

446

/* Run queue */

447

do {

448

current_time = get_current_time();

449

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

450

const error_t saved_errno = errno;

451

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

452

" events");

453

}

454

455

current_time = get_current_time();

456

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

457

const error_t saved_errno = errno;

458

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

459

}

460

461

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

462

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

463

} while(queue_has_question(queue));

464

465

restore_signal_handler(&old_sigchld_action);

466

restore_sigmask(&orig_sigmask);

467

468

return EXIT_SUCCESS;

469

}

470

471

__attribute__((warn_unused_result))

472

mono_microsecs get_current_time(void){

473

struct timespec currtime;

474

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

475

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

476

return 0;

477

}

478

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

479

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

480

}

481

482

/* End of "main" section */

483

484

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

485

486

__attribute__((nonnull))

487

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

488

char **agent_directory, char **helper_directory,

489

uid_t *const user, gid_t *const group,

490

char **mandos_argz, size_t *mandos_argz_length){

491

492

const struct argp_option options[] = {

493

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

494

.doc="Systemd password agent directory" },

495

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

496

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

497

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

498

.flags=OPTION_HIDDEN | OPTION_ALIAS },

499

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

500

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

501

" user" },

502

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

503

.flags=OPTION_HIDDEN | OPTION_ALIAS },

504

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

505

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

506

" group" },

507

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

508

.flags=OPTION_HIDDEN | OPTION_ALIAS },

509

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

510

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

511

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

512

{ NULL },

513

};

514

515

__attribute__((nonnull(3)))

516

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

517

errno = 0;

518

switch(key){

519

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

520

*agent_directory = strdup(arg);

521

break;

522

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

523

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

524

*helper_directory = strdup(arg);

525

break;

526

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

527

case 130: /* --userid */

528

{

529

char *tmp;

530

uintmax_t tmp_id = 0;

531

errno = 0;

532

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

533

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

534

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

535

return ARGP_ERR_UNKNOWN;

536

}

537

*user = (uid_t)tmp_id;

538

errno = 0;

539

break;

540

}

541

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

542

case 131: /* --groupid */

543

{

544

char *tmp;

545

uintmax_t tmp_id = 0;

546

errno = 0;

547

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

548

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

549

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

550

return ARGP_ERR_UNKNOWN;

551

}

552

*group = (gid_t)tmp_id;

553

errno = 0;

554

break;

555

}

556

case ARGP_KEY_ARGS:

557

/* Copy arguments into argz vector */

558

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

559

mandos_argz_length);

560

default:

561

return ARGP_ERR_UNKNOWN;

562

}

563

return errno;

564

}

565

566

const struct argp argp = {

567

.options=options,

568

.parser=parse_opt,

569

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

570

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

571

" systemd password agent",

572

};

573

574

errno = argp_parse(&argp, argc, argv,

575

exit_failure ? 0 : ARGP_NO_EXIT, NULL, NULL);

576

577

return errno == 0;

578

}

579

580

__attribute__((nonnull, warn_unused_result))

581

bool block_sigchld(sigset_t *const orig_sigmask){

582

sigset_t sigchld_sigmask;

583

if(sigemptyset(&sigchld_sigmask) < 0){

584

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

585

return false;

586

}

587

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

588

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

589

return false;

590

}

591

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

592

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

593

return false;

594

}

595

return true;

596

}

597

598

__attribute__((nonnull, warn_unused_result, const))

599

bool restore_sigmask(const sigset_t *const orig_sigmask){

600

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

601

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

602

return false;

603

}

604

return true;

605

}

606

607

__attribute__((nonnull, warn_unused_result))

608

bool setup_signal_handler(struct sigaction *const old_sigchld_action){

609

struct sigaction sigchld_action = {

610

.sa_handler=handle_sigchld,

611

.sa_flags=SA_RESTART | SA_NOCLDSTOP,

612

};

613

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

614

signals automatically blocked during signal handler */

615

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

616

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

617

return false;

618

}

619

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

620

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

621

return false;

622

}

623

return true;

624

}

625

626

__attribute__((nonnull, warn_unused_result))

627

bool restore_signal_handler(const struct sigaction *const

628

old_sigchld_action){

629

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

630

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

631

return false;

632

}

633

return true;

634

}

635

636

__attribute__((warn_unused_result, malloc))

637

task_queue *create_queue(void){

638

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

639

if(queue){

640

queue->tasks = NULL;

641

queue->length = 0;

642

queue->allocated = 0;

643

queue->next_run = 0;

644

}

645

return queue;

646

}

647

648

__attribute__((nonnull, warn_unused_result))

649

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

650

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

651

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

652

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

653

needed_size);

654

if(new_tasks == NULL){

655

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

656

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

657

return false;

658

}

659

queue->tasks = new_tasks;

660

queue->allocated = needed_size;

661

}

662

/* Using memcpy here is necessary because doing */

663

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

664

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

665

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

666

sizeof(task_context));

667

return true;

668

}

669

670

__attribute__((nonnull))

671

void cleanup_task(const task_context *const task){

672

const error_t saved_errno = errno;

673

/* free and close all task data */

674

free(task->question_filename);

675

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

676

free(task->filename);

677

}

678

if(task->pid > 0){

679

kill(task->pid, SIGTERM);

680

}

681

if(task->fd > 0){

682

close(task->fd);

683

}

684

errno = saved_errno;

685

}

686

687

__attribute__((nonnull))

688

void free_queue(task_queue *const queue){

689

free(queue->tasks);

690

free(queue);

691

}

692

693

__attribute__((nonnull))

694

void cleanup_queue(task_queue *const *const queue){

695

if(*queue == NULL){

696

return;

697

}

698

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

699

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

700

cleanup_task(task);

701

}

702

free_queue(*queue);

703

}

704

705

__attribute__((pure, nonnull, warn_unused_result))

706

bool queue_has_question(const task_queue *const queue){

707

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

708

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

709

return true;

710

}

711

}

712

return false;

713

}

714

715

__attribute__((nonnull))

716

void cleanup_close(const int *const fd){

717

const error_t saved_errno = errno;

718

close(*fd);

719

errno = saved_errno;

720

}

721

722

__attribute__((nonnull))

723

void cleanup_string(char *const *const ptr){

724

free(*ptr);

725

}

726

727

__attribute__((nonnull))

728

void cleanup_buffer(buffer *buf){

729

if(buf->allocated > 0){

730

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

731

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

732

#else

733

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

734

#endif

735

}

736

if(buf->data != NULL){

737

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

738

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

739

}

740

free(buf->data);

741

buf->data = NULL;

742

}

743

buf->length = 0;

744

buf->allocated = 0;

745

}

746

747

__attribute__((pure, nonnull, warn_unused_result))

748

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

749

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

750

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

751

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

752

return true;

753

}

754

}

755

return false;

756

}

757

758

__attribute__((nonnull, warn_unused_result))

759

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

760

if(string_set_contains(*set, str)){

761

return true;

762

}

763

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

764

if(error == 0){

765

return true;

766

}

767

errno = error;

768

return false;

769

}

770

771

__attribute__((nonnull))

772

void string_set_clear(string_set *set){

773

free(set->argz);

774

set->argz = NULL;

775

set->argz_len = 0;

776

}

777

778

__attribute__((nonnull))

779

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

780

/* Swap contents of two string sets */

781

{

782

char *const tmp_argz = set1->argz;

783

set1->argz = set2->argz;

784

set2->argz = tmp_argz;

785

}

786

{

787

const size_t tmp_argz_len = set1->argz_len;

788

set1->argz_len = set2->argz_len;

789

set2->argz_len = tmp_argz_len;

790

}

791

}

792

793

__attribute__((nonnull, warn_unused_result))

794

bool start_mandos_client(task_queue *const queue,

795

const int epoll_fd,

796

bool *const mandos_client_exited,

797

bool *const quit_now, buffer *const password,

798

bool *const password_is_read,

799

const struct sigaction *const

800

old_sigchld_action, const sigset_t sigmask,

801

const char *const helper_directory,

802

const uid_t user, const gid_t group,

803

const char *const *const argv){

804

int pipefds[2];

805

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

806

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

807

return false;

808

}

809

810

const pid_t pid = fork();

811

if(pid == 0){

812

if(not restore_signal_handler(old_sigchld_action)){

813

_exit(EXIT_FAILURE);

814

}

815

if(not restore_sigmask(&sigmask)){

816

_exit(EXIT_FAILURE);

817

}

818

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

819

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

820

_exit(EXIT_FAILURE);

821

}

822

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

823

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

824

_exit(EXIT_FAILURE);

825

}

826

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

827

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

828

_exit(EXIT_FAILURE);

829

}

830

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

831

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

832

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

833

_exit(EXIT_FAILURE);

834

}

835

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

836

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

837

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

838

_exit(EXIT_FAILURE);

839

}

840

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

841

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

842

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

843

_exit(EXIT_FAILURE);

844

}

845

#ifdef __GNUC__

846

#pragma GCC diagnostic push

847

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

848

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

849

#pragma GCC diagnostic ignored "-Wcast-qual"

850

#endif

851

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

852

#ifdef __GNUC__

853

#pragma GCC diagnostic pop

854

#endif

855

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

856

_exit(EXIT_FAILURE);

857

}

858

close(pipefds[1]);

859

860

if(not add_to_queue(queue, (task_context){

861

.func=wait_for_mandos_client_exit,

862

.pid=pid,

863

.mandos_client_exited=mandos_client_exited,

864

.quit_now=quit_now,

865

})){

866

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

867

close(pipefds[0]);

868

return false;

869

}

870

871

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

872

&(struct epoll_event)

873

{ .events=EPOLLIN | EPOLLRDHUP });

874

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

875

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

876

close(pipefds[0]);

877

return false;

878

}

879

880

return add_to_queue(queue, (task_context){

881

.func=read_mandos_client_output,

882

.epoll_fd=epoll_fd,

883

.fd=pipefds[0],

884

.quit_now=quit_now,

885

.password=password,

886

.password_is_read=password_is_read,

887

});

888

}

889

890

__attribute__((nonnull))

891

void wait_for_mandos_client_exit(const task_context task,

892

task_queue *const queue){

893

const pid_t pid = task.pid;

894

bool *const mandos_client_exited = task.mandos_client_exited;

895

bool *const quit_now = task.quit_now;

896

897

int status;

898

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

899

case 0: /* Not exited yet */

900

if(not add_to_queue(queue, task)){

901

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

902

*quit_now = true;

903

}

904

break;

905

case -1: /* Error */

906

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

907

if(errno != ECHILD){

908

kill(pid, SIGTERM);

909

}

910

*quit_now = true;

911

break;

912

default: /* Has exited */

913

*mandos_client_exited = true;

914

if((not WIFEXITED(status))

915

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

916

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

917

*quit_now = true;

918

}

919

}

920

}

921

922

__attribute__((nonnull))

923

void read_mandos_client_output(const task_context task,

924

task_queue *const queue){

925

buffer *const password = task.password;

926

bool *const quit_now = task.quit_now;

927

bool *const password_is_read = task.password_is_read;

928

const int fd = task.fd;

929

const int epoll_fd = task.epoll_fd;

930

931

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

932

if(password->allocated < new_potential_size){

933

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

934

if(new_buffer == NULL){

935

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

936

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

937

*quit_now = true;

938

close(fd);

939

return;

940

}

941

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

942

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

943

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

944

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

945

}

946

}

947

if(password->length > 0){

948

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

949

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

950

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

951

#else

952

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

953

#endif

954

}

955

if(password->data != NULL){

956

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

957

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

958

}

959

free(password->data);

960

}

961

password->data = new_buffer;

962

password->allocated = new_potential_size;

963

}

964

965

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

966

+ password->length, PIPE_BUF);

967

968

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

969

*password_is_read = true;

970

close(fd);

971

return;

972

}

973

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

974

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

975

*quit_now = true;

976

close(fd);

977

return;

978

}

979

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

980

password->length += (size_t)read_length;

981

}

982

983

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

984

available yet */

985

986

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

987

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

988

&(struct epoll_event)

989

{ .events=EPOLLIN | EPOLLRDHUP });

990

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

991

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

992

*quit_now = true;

993

close(fd);

994

return;

995

}

996

997

/* Re-add myself to the queue */

998

if(not add_to_queue(queue, task)){

999

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

1000

*quit_now = true;

1001

close(fd);

1002

}

1003

}

1004

1005

__attribute__((nonnull, warn_unused_result))

1006

bool add_inotify_dir_watch(task_queue *const queue,

1007

const int epoll_fd, bool *const quit_now,

1008

buffer *const password,

1009

const char *const dir,

1010

string_set *cancelled_filenames,

1011

const mono_microsecs *const current_time,

1012

bool *const mandos_client_exited,

1013

bool *const password_is_read){

1014

const int fd = inotify_init1(IN_NONBLOCK | IN_CLOEXEC);

1015

if(fd == -1){

1016

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

1017

return false;

1018

}

1019

1020

if(inotify_add_watch(fd, dir, IN_CLOSE_WRITE | IN_MOVED_TO

1021

| IN_MOVED_FROM| IN_DELETE)

1022

== -1){

1023

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

1024

return false;

1025

}

1026

1027

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

1028

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

1029

&(struct epoll_event)

1030

{ .events=EPOLLIN | EPOLLRDHUP });

1031

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

1032

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

1033

close(fd);

1034

return false;

1035

}

1036

1037

const task_context read_inotify_event_task = {

1038

.func=read_inotify_event,

1039

.epoll_fd=epoll_fd,

1040

.quit_now=quit_now,

1041

.password=password,

1042

.fd=fd,

1043

.filename=strdup(dir),

1044

.cancelled_filenames=cancelled_filenames,

1045

.current_time=current_time,

1046

.mandos_client_exited=mandos_client_exited,

1047

.password_is_read=password_is_read,

1048

};

1049

if(read_inotify_event_task.filename == NULL){

1050

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

1051

close(fd);

1052

return false;

1053

}

1054

1055

return add_to_queue(queue, read_inotify_event_task);

1056

}

1057

1058

__attribute__((nonnull))

1059

void read_inotify_event(const task_context task,

1060

task_queue *const queue){

1061

const int fd = task.fd;

1062

const int epoll_fd = task.epoll_fd;

1063

char *const filename = task.filename;

1064

bool *quit_now = task.quit_now;

1065

buffer *const password = task.password;

1066

string_set *const cancelled_filenames = task.cancelled_filenames;

1067

const mono_microsecs *const current_time = task.current_time;

1068

bool *const mandos_client_exited = task.mandos_client_exited;

1069

bool *const password_is_read = task.password_is_read;

1070

1071

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

1072

const size_t ievent_size = (sizeof(struct inotify_event)

1073

+ NAME_MAX + 1);

1074

struct {

1075

struct inotify_event event;

1076

char name_buffer[NAME_MAX + 1];

1077

} ievent_buffer;

1078

struct inotify_event *const ievent = &ievent_buffer.event;

1079

1080

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

1081

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

1082

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

1083

*quit_now = true;

1084

cleanup_task(&task);

1085

return;

1086

}

1087

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

1088

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

1089

filename);

1090

*quit_now = true;

1091

cleanup_task(&task);

1092

return;

1093

}

1094

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

1095

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

1096

char *question_filename = NULL;

1097

const ssize_t question_filename_length

1098

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

1099

if(question_filename_length < 0){

1100

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

1101

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

1102

} else {

1103

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

1104

if(not add_to_queue(queue, (task_context){

1105

.func=open_and_parse_question,

1106

.epoll_fd=epoll_fd,

1107

.question_filename=question_filename,

1108

.filename=question_filename,

1109

.password=password,

1110

.cancelled_filenames=cancelled_filenames,

1111

.current_time=current_time,

1112

.mandos_client_exited=mandos_client_exited,

1113

.password_is_read=password_is_read,

1114

})){

1115

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

1116

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

1117

} else {

1118

/* Force the added task (open_and_parse_question) to run

1119

immediately */

1120

queue->next_run = 1;

1121

}

1122

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

1123

if(not string_set_add(cancelled_filenames,

1124

question_filename)){

1125

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

1126

" cancelled_questions", question_filename);

1127

*quit_now = true;

1128

free(question_filename);

1129

cleanup_task(&task);

1130

return;

1131

}

1132

free(question_filename);

1133

}

1134

}

1135

}

1136

1137

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

1138

available yet */

1139

1140

/* Re-add myself to the queue */

1141

if(not add_to_queue(queue, task)){

1142

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

1143

" queue", filename);

1144

*quit_now = true;

1145

cleanup_task(&task);

1146

return;

1147

}

1148

1149

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

1150

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

1151

&(struct epoll_event)

1152

{ .events=EPOLLIN | EPOLLRDHUP });

1153

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

1154

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

1155

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

1156

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

1157

one second from now */

1158

if((queue->next_run == 0)

1159

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

1160

queue->next_run = *current_time + 1000000;

1161

}

1162

}

1163

}

1164

1165

__attribute__((nonnull))

1166

void open_and_parse_question(const task_context task,

1167

task_queue *const queue){

1168

__attribute__((cleanup(cleanup_string)))

1169

char *question_filename = task.question_filename;

1170

const int epoll_fd = task.epoll_fd;

1171

buffer *const password = task.password;

1172

string_set *const cancelled_filenames = task.cancelled_filenames;

1173

const mono_microsecs *const current_time = task.current_time;

1174

bool *const mandos_client_exited = task.mandos_client_exited;

1175

bool *const password_is_read = task.password_is_read;

1176

1177

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

1178

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

1179

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

1180

__attribute__((nonnull))

1181

void cleanup_g_key_file(GKeyFile **key_file){

1182

if(*key_file != NULL){

1183

g_key_file_free(*key_file);

1184

}

1185

}

1186

1187

__attribute__((cleanup(cleanup_g_key_file)))

1188

GKeyFile *key_file = g_key_file_new();

1189

if(key_file == NULL){

1190

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

1191

question_filename);

1192

return;

1193

}

1194

GError *glib_error = NULL;

1195

if(g_key_file_load_from_file(key_file, question_filename,

1196

G_KEY_FILE_NONE, &glib_error) != TRUE){

1197

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

1198

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

1199

if(glib_error->code != G_FILE_ERROR_NOENT){

1200

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

1201

question_filename, glib_error->message);

1202

}

1203

return;

1204

}

1205

1206

__attribute__((cleanup(cleanup_string)))

1207

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

1208

"Socket",

1209

&glib_error);

1210

if(socket_name == NULL){

1211

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

1212

question_filename, glib_error->message);

1213

return;

1214

}

1215

1216

if(strlen(socket_name) == 0){

1217

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

1218

question_filename);

1219

return;

1220

}

1221

1222

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

1223

&glib_error);

1224

if(glib_error != NULL){

1225

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

1226

question_filename, glib_error->message);

1227

return;

1228

}

1229

1230

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

1231

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

1232

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

1233

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

1234

return;

1235

}

1236

1237

guint64 notafter = g_key_file_get_uint64(key_file, "Ask",

1238

"NotAfter", &glib_error);

1239

if(glib_error != NULL){

1240

if(glib_error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND){

1241

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

1242

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

1243

}

1244

notafter = 0;

1245

}

1246

if(notafter != 0){

1247

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

1248

queue->next_run = notafter;

1249

}

1250

if(*current_time >= notafter){

1251

return;

1252

}

1253

}

1254

1255

const task_context connect_question_socket_task = {

1256

.func=connect_question_socket,

1257

.question_filename=strdup(question_filename),

1258

.epoll_fd=epoll_fd,

1259

.password=password,

1260

.filename=strdup(socket_name),

1261

.cancelled_filenames=task.cancelled_filenames,

1262

.mandos_client_exited=mandos_client_exited,

1263

.password_is_read=password_is_read,

1264

.current_time=current_time,

1265

};

1266

if(connect_question_socket_task.question_filename == NULL

1267

or connect_question_socket_task.filename == NULL

1268

or not add_to_queue(queue, connect_question_socket_task)){

1269

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

1270

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

1271

question_filename);

1272

cleanup_task(&connect_question_socket_task);

1273

return;

1274

}

1275

/* Force the added task (connect_question_socket) to run

1276

immediately */

1277

queue->next_run = 1;

1278

1279

if(notafter > 0){

1280

char *const dup_filename = strdup(question_filename);

1281

const task_context cancel_old_question_task = {

1282

.func=cancel_old_question,

1283

.question_filename=dup_filename,

1284

.notafter=notafter,

1285

.filename=dup_filename,

1286

.cancelled_filenames=cancelled_filenames,

1287

.current_time=current_time,

1288

};

1289

if(cancel_old_question_task.question_filename == NULL

1290

or not add_to_queue(queue, cancel_old_question_task)){

1291

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

1292

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

1293

cleanup_task(&cancel_old_question_task);

1294

return;

1295

}

1296

}

1297

}

1298

1299

__attribute__((nonnull))

1300

void cancel_old_question(const task_context task,

1301

task_queue *const queue){

1302

char *const question_filename = task.question_filename;

1303

string_set *const cancelled_filenames = task.cancelled_filenames;

1304

const mono_microsecs notafter = task.notafter;

1305

const mono_microsecs *const current_time = task.current_time;

1306

1307

if(*current_time >= notafter){

1308

if(not string_set_add(cancelled_filenames, question_filename)){

1309

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

1310

question_filename);

1311

}

1312

cleanup_task(&task);

1313

return;

1314

}

1315

1316

if(not add_to_queue(queue, task)){

1317

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

1318

"%s to queue", question_filename);

1319

cleanup_task(&task);

1320

return;

1321

}

1322

1323

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

1324

queue->next_run = notafter;

1325

}

1326

}

1327

1328

__attribute__((nonnull))

1329

void connect_question_socket(const task_context task,

1330

task_queue *const queue){

1331

char *const question_filename = task.question_filename;

1332

char *const filename = task.filename;

1333

const int epoll_fd = task.epoll_fd;

1334

buffer *const password = task.password;

1335

string_set *const cancelled_filenames = task.cancelled_filenames;

1336

bool *const mandos_client_exited = task.mandos_client_exited;

1337

bool *const password_is_read = task.password_is_read;

1338

const mono_microsecs *const current_time = task.current_time;

1339

1340

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

1341

1342

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

1343

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

1344

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

1345

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

1346

if(not string_set_add(cancelled_filenames, question_filename)){

1347

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

1348

question_filename);

1349

}

1350

cleanup_task(&task);

1351

return;

1352

}

1353

1354

const int fd = socket(PF_LOCAL, SOCK_DGRAM

1355

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

1356

if(fd < 0){

1357

error(0, errno,

1358

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

1359

if(not add_to_queue(queue, task)){

1360

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

1361

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

1362

filename);

1363

cleanup_task(&task);

1364

} else {

1365

/* Force the added task (connect_question_socket) to run

1366

immediately */

1367

queue->next_run = 1;

1368

}

1369

return;

1370

}

1371

1372

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

1373

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

1374

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

1375

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

1376

if(not add_to_queue(queue, task)){

1377

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

1378

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

1379

filename);

1380

cleanup_task(&task);

1381

} else {

1382

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

1383

at most one second from now */

1384

if((queue->next_run == 0)

1385

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

1386

queue->next_run = *current_time + 1000000;

1387

}

1388

}

1389

return;

1390

}

1391

1392

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

1393

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

1394

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

1395

filename);

1396

}

1397

1398

/* Add the fd to the epoll set */

1399

if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1400

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

1401

!= 0){

1402

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

1403

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

1404

if(not add_to_queue(queue, task)){

1405

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

1406

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

1407

filename);

1408

cleanup_task(&task);

1409

} else {

1410

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

1411

at most one second from now */

1412

if((queue->next_run == 0)

1413

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

1414

queue->next_run = *current_time + 1000000;

1415

}

1416

}

1417

return;

1418

}

1419

1420

/* add task send_password_to_socket to queue */

1421

const task_context send_password_to_socket_task = {

1422

.func=send_password_to_socket,

1423

.question_filename=question_filename,

1424

.filename=filename,

1425

.epoll_fd=epoll_fd,

1426

.fd=fd,

1427

.password=password,

1428

.cancelled_filenames=cancelled_filenames,

1429

.mandos_client_exited=mandos_client_exited,

1430

.password_is_read=password_is_read,

1431

.current_time=current_time,

1432

};

1433

1434

if(not add_to_queue(queue, send_password_to_socket_task)){

1435

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

1436

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

1437

question_filename, filename);

1438

cleanup_task(&send_password_to_socket_task);

1439

}

1440

}

1441

1442

__attribute__((nonnull))

1443

void send_password_to_socket(const task_context task,

1444

task_queue *const queue){

1445

char *const question_filename=task.question_filename;

1446

char *const filename=task.filename;

1447

const int epoll_fd=task.epoll_fd;

1448

const int fd=task.fd;

1449

buffer *const password=task.password;

1450

string_set *const cancelled_filenames=task.cancelled_filenames;

1451

bool *const mandos_client_exited = task.mandos_client_exited;

1452

bool *const password_is_read = task.password_is_read;

1453

const mono_microsecs *const current_time = task.current_time;

1454

1455

if(*mandos_client_exited and *password_is_read){

1456

1457

const size_t send_buffer_length = password->length + 2;

1458

char *send_buffer = malloc(send_buffer_length);

1459

if(send_buffer == NULL){

1460

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

1461

} else {

1462

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

1463

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

1464

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

1465

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

1466

" buffer");

1467

}

1468

}

1469

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

1470

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

1471

depending on whether the password entry was successful or

1472

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

1473

your message.

1474

1475

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

1476

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

1477

*/

1478

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

1479

/* Always add an extra NUL */

1480

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

1481

if(password->length > 0){

1482

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

1483

}

1484

errno = 0;

1485

ssize_t ssret = send(fd, send_buffer, send_buffer_length,

1486

MSG_NOSIGNAL);

1487

const error_t saved_errno = errno;

1488

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

1489

explicit_bzero(send_buffer, send_buffer_length);

1490

#else

1491

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

1492

#endif

1493

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

1494

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

1495

}

1496

free(send_buffer);

1497

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

1498

switch(saved_errno){

1499

case EINTR:

1500

case ENOBUFS:

1501

case ENOMEM:

1502

case EADDRINUSE:

1503

case ECONNREFUSED:

1504

case ECONNRESET:

1505

case ENOENT:

1506

case ETOOMANYREFS:

1507

case EAGAIN:

1508

/* Retry, below */

1509

break;

1510

case EMSGSIZE:

1511

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

1512

(uintmax_t)password->length);

1513

#if __GNUC__ < 7

1514

/* FALLTHROUGH */

1515

#else

1516

__attribute__((fallthrough));

1517

#endif

1518

case 0:

1519

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

1520

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

1521

}

1522

#if __GNUC__ < 7

1523

/* FALLTHROUGH */

1524

#else

1525

__attribute__((fallthrough));

1526

#endif

1527

default:

1528

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

1529

filename);

1530

if(not string_set_add(cancelled_filenames,

1531

question_filename)){

1532

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

1533

question_filename);

1534

}

1535

cleanup_task(&task);

1536

return;

1537

}

1538

} else {

1539

/* Success */

1540

cleanup_task(&task);

1541

return;

1542

}

1543

}

1544

}

1545

1546

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

1547

1548

if(not add_to_queue(queue, task)){

1549

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

1550

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

1551

filename);

1552

cleanup_task(&task);

1553

}

1554

1555

/* Add the fd to the epoll set */

1556

if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1557

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

1558

!= 0){

1559

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

1560

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

1561

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

1562

most one second from now */

1563

if((queue->next_run == 0)

1564

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

1565

queue->next_run = *current_time + 1000000;

1566

}

1567

}

1568

}

1569

1570

__attribute__((warn_unused_result))

1571

bool add_existing_questions(task_queue *const queue,

1572

const int epoll_fd,

1573

buffer *const password,

1574

string_set *cancelled_filenames,

1575

const mono_microsecs *const current_time,

1576

bool *const mandos_client_exited,

1577

bool *const password_is_read,

1578

const char *const dirname){

1579

__attribute__((cleanup(cleanup_string)))

1580

char *dir_pattern = NULL;

1581

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

1582

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

1583

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

1584

dirname);

1585

return false;

1586

}

1587

__attribute__((cleanup(globfree)))

1588

glob_t question_filenames = {};

1589

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

1590

NULL, &question_filenames)){

1591

case GLOB_ABORTED:

1592

default:

1593

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

1594

return false;

1595

case GLOB_NOMATCH:

1596

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

1597

return false;

1598

case GLOB_NOSPACE:

1599

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

1600

" names in %s", dirname);

1601

#if __GNUC__ < 7

1602

/* FALLTHROUGH */

1603

#else

1604

__attribute__((fallthrough));

1605

#endif

1606

case 0:

1607

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

1608

char *const question_filename = strdup(question_filenames

1609

.gl_pathv[i]);

1610

const task_context task = {

1611

.func=open_and_parse_question,

1612

.epoll_fd=epoll_fd,

1613

.question_filename=question_filename,

1614

.filename=question_filename,

1615

.password=password,

1616

.cancelled_filenames=cancelled_filenames,

1617

.current_time=current_time,

1618

.mandos_client_exited=mandos_client_exited,

1619

.password_is_read=password_is_read,

1620

};

1621

1622

if(question_filename == NULL

1623

or not add_to_queue(queue, task)){

1624

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

1625

" file %s to queue",

1626

question_filenames.gl_pathv[i]);

1627

free(question_filename);

1628

} else {

1629

queue->next_run = 1;

1630

}

1631

}

1632

return true;

1633

}

1634

}

1635

1636

__attribute__((nonnull, warn_unused_result))

1637

bool wait_for_event(const int epoll_fd,

1638

const mono_microsecs queue_next_run,

1639

const mono_microsecs current_time){

1640

__attribute__((const))

1641

int milliseconds_to_wait(const mono_microsecs currtime,

1642

const mono_microsecs nextrun){

1643

if(currtime >= nextrun){

1644

return 0;

1645

}

1646

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

1647

if(wait_time_ms > (uintmax_t)INT_MAX){

1648

return INT_MAX;

1649

}

1650

return (int)wait_time_ms;

1651

}

1652

1653

const int wait_time_ms = milliseconds_to_wait(current_time,

1654

queue_next_run);

1655

1656

/* Prepare unblocking of SIGCHLD during epoll_pwait */

1657

sigset_t temporary_unblocked_sigmask;

1658

/* Get current signal mask */

1659

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

1660

return false;

1661

}

1662

/* Remove SIGCHLD from the signal mask */

1663

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

1664

return false;

1665

}

1666

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

1667

int ret = epoll_pwait(epoll_fd, events,

1668

sizeof(events) / sizeof(struct epoll_event),

1669

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

1670

&temporary_unblocked_sigmask);

1671

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

1672

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

1673

" ...", epoll_fd,

1674

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

1675

return false;

1676

}

1677

return clear_all_fds_from_epoll_set(epoll_fd);

1678

}

1679

1680

bool clear_all_fds_from_epoll_set(const int epoll_fd){

1681

/* Create a new empty epoll set */

1682

__attribute__((cleanup(cleanup_close)))

1683

const int new_epoll_fd = epoll_create1(EPOLL_CLOEXEC);

1684

if(new_epoll_fd < 0){

1685

return false;

1686

}

1687

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

1688

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

1689

return false;

1690

}

1691

return true;

1692

}

1693

1694

__attribute__((nonnull, warn_unused_result))

1695

bool run_queue(task_queue **const queue,

1696

string_set *const cancelled_filenames,

1697

bool *const quit_now){

1698

1699

task_queue *new_queue = create_queue();

1700

if(new_queue == NULL){

1701

return false;

1702

}

1703

1704

__attribute__((cleanup(string_set_clear)))

1705

string_set old_cancelled_filenames = {};

1706

string_set_swap(cancelled_filenames, &old_cancelled_filenames);

1707

1708

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

1709

loop in case we aborted in the middle */

1710

size_t i;

1711

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

1712

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

1713

const char *const question_filename = task->question_filename;

1714

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

1715

if(question_filename != NULL

1716

and string_set_contains(old_cancelled_filenames,

1717

question_filename)){

1718

cleanup_task(task);

1719

continue;

1720

}

1721

task->func(*task, new_queue);

1722

}

1723

1724

if(*quit_now){

1725

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

1726

remaining tasks in the current queue */

1727

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

1728

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

1729

}

1730

free_queue(*queue);

1731

*queue = new_queue;

1732

new_queue = NULL;

1733

return false;

1734

}

1735

free_queue(*queue);

1736

*queue = new_queue;

1737

new_queue = NULL;

1738

1739

return true;

1740

}

1741

1742

/* End of regular code section */

1743

1744

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

1745

1746

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

1747

teardown functions */

1748

typedef struct {

1749

struct sigaction orig_sigaction;

1750

sigset_t orig_sigmask;

1751

} test_fixture;

1752

1753

static void test_setup(test_fixture *fixture,

1754

__attribute__((unused))

1755

gconstpointer user_data){

1756

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

1757

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

1758

}

1759

1760

static void test_teardown(test_fixture *fixture,

1761

__attribute__((unused))

1762

gconstpointer user_data){

1763

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

1764

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

1765

}

1766

1767

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

1768

__attribute__((pure, nonnull, warn_unused_result))

1769

static task_context *find_matching_task(const task_queue *const queue,

1770

const task_context task){

1771

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

1772

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

1773

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

1774

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

1775

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

1776

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

1777

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

1778

1779

/* task_func *const func */

1780

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

1781

continue;

1782

}

1783

/* char *const question_filename; */

1784

if(task.question_filename != NULL

1785

and (current_task->question_filename == NULL

1786

or strcmp(current_task->question_filename,

1787

task.question_filename) != 0)){

1788

continue;

1789

}

1790

/* const pid_t pid; */

1791

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

1792

continue;

1793

}

1794

/* const int epoll_fd; */

1795

if(task.epoll_fd != 0

1796

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

1797

continue;

1798

}

1799

/* bool *const quit_now; */

1800

if(task.quit_now != NULL

1801

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

1802

continue;

1803

}

1804

/* const int fd; */

1805

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

1806

continue;

1807

}

1808

/* bool *const mandos_client_exited; */

1809

if(task.mandos_client_exited != NULL

1810

and current_task->mandos_client_exited

1811

!= task.mandos_client_exited){

1812

continue;

1813

}

1814

/* buffer *const password; */

1815

if(task.password != NULL

1816

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

1817

continue;

1818

}

1819

/* bool *const password_is_read; */

1820

if(task.password_is_read != NULL

1821

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

1822

continue;

1823

}

1824

/* char *filename; */

1825

if(task.filename != NULL

1826

and (current_task->filename == NULL

1827

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

1828

continue;

1829

}

1830

/* string_set *const cancelled_filenames; */

1831

if(task.cancelled_filenames != NULL

1832

and current_task->cancelled_filenames

1833

!= task.cancelled_filenames){

1834

continue;

1835

}

1836

/* const mono_microsecs notafter; */

1837

if(task.notafter != 0

1838

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

1839

continue;

1840

}

1841

/* const mono_microsecs *const current_time; */

1842

if(task.current_time != NULL

1843

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

1844

continue;

1845

}

1846

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

1847

return current_task;

1848

}

1849

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

1850

return NULL;

1851

}

1852

1853

static void test_create_queue(__attribute__((unused))

1854

test_fixture *fixture,

1855

__attribute__((unused))

1856

gconstpointer user_data){

1857

__attribute__((cleanup(cleanup_queue)))

1858

task_queue *const queue = create_queue();

1859

g_assert_nonnull(queue);

1860

g_assert_null(queue->tasks);

1861

g_assert_true(queue->length == 0);

1862

g_assert_true(queue->next_run == 0);

1863

}

1864

1865

static task_func dummy_func;

1866

1867

static void test_add_to_queue(__attribute__((unused))

1868

test_fixture *fixture,

1869

__attribute__((unused))

1870

gconstpointer user_data){

1871

__attribute__((cleanup(cleanup_queue)))

1872

task_queue *queue = create_queue();

1873

g_assert_nonnull(queue);

1874

1875

g_assert_true(add_to_queue(queue,

1876

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

1877

g_assert_true(queue->length == 1);

1878

g_assert_nonnull(queue->tasks);

1879

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

1880

}

1881

1882

static void dummy_func(__attribute__((unused))

1883

const task_context task,

1884

__attribute__((unused))

1885

task_queue *const queue){

1886

}

1887

1888

static void test_queue_has_question_empty(__attribute__((unused))

1889

test_fixture *fixture,

1890

__attribute__((unused))

1891

gconstpointer user_data){

1892

__attribute__((cleanup(cleanup_queue)))

1893

task_queue *queue = create_queue();

1894

g_assert_nonnull(queue);

1895

g_assert_false(queue_has_question(queue));

1896

}

1897

1898

static void test_queue_has_question_false(__attribute__((unused))

1899

test_fixture *fixture,

1900

__attribute__((unused))

1901

gconstpointer user_data){

1902

__attribute__((cleanup(cleanup_queue)))

1903

task_queue *queue = create_queue();

1904

g_assert_nonnull(queue);

1905

g_assert_true(add_to_queue(queue,

1906

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

1907

g_assert_false(queue_has_question(queue));

1908

}

1909

1910

static void test_queue_has_question_true(__attribute__((unused))

1911

test_fixture *fixture,

1912

__attribute__((unused))

1913

gconstpointer user_data){

1914

__attribute__((cleanup(cleanup_queue)))

1915

task_queue *queue = create_queue();

1916

g_assert_nonnull(queue);

1917

char *const question_filename

1918

= strdup("/nonexistent/question_filename");

1919

g_assert_nonnull(question_filename);

1920

task_context task = {

1921

.func=dummy_func,

1922

.question_filename=question_filename,

1923

};

1924

g_assert_true(add_to_queue(queue, task));

1925

g_assert_true(queue_has_question(queue));

1926

}

1927

1928

static void test_queue_has_question_false2(__attribute__((unused))

1929

test_fixture *fixture,

1930

__attribute__((unused))

1931

gconstpointer user_data){

1932

__attribute__((cleanup(cleanup_queue)))

1933

task_queue *queue = create_queue();

1934

g_assert_nonnull(queue);

1935

task_context task = { .func=dummy_func };

1936

g_assert_true(add_to_queue(queue, task));

1937

g_assert_true(add_to_queue(queue, task));

1938

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

1939

g_assert_false(queue_has_question(queue));

1940

}

1941

1942

static void test_queue_has_question_true2(__attribute__((unused))

1943

test_fixture *fixture,

1944

__attribute__((unused))

1945

gconstpointer user_data){

1946

__attribute__((cleanup(cleanup_queue)))

1947

task_queue *queue = create_queue();

1948

g_assert_nonnull(queue);

1949

task_context task1 = { .func=dummy_func };

1950

g_assert_true(add_to_queue(queue, task1));

1951

char *const question_filename

1952

= strdup("/nonexistent/question_filename");

1953

g_assert_nonnull(question_filename);

1954

task_context task2 = {

1955

.func=dummy_func,

1956

.question_filename=question_filename,

1957

};

1958

g_assert_true(add_to_queue(queue, task2));

1959

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

1960

g_assert_true(queue_has_question(queue));

1961

}

1962

1963

static void test_cleanup_buffer(__attribute__((unused))

1964

test_fixture *fixture,

1965

__attribute__((unused))

1966

gconstpointer user_data){

1967

buffer buf = {};

1968

1969

const size_t buffersize = 10;

1970

1971

buf.data = malloc(buffersize);

1972

g_assert_nonnull(buf.data);

1973

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

1974

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

1975

}

1976

1977

cleanup_buffer(&buf);

1978

g_assert_null(buf.data);

1979

}

1980

1981

static

1982

void test_string_set_new_set_contains_nothing(__attribute__((unused))

1983

test_fixture *fixture,

1984

__attribute__((unused))

1985

gconstpointer

1986

user_data){

1987

__attribute__((cleanup(string_set_clear)))

1988

string_set set = {};

1989

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

1990

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

1991

}

1992

1993

static void

1994

test_string_set_with_added_string_contains_it(__attribute__((unused))

1995

test_fixture *fixture,

1996

__attribute__((unused))

1997

gconstpointer

1998

user_data){

1999

__attribute__((cleanup(string_set_clear)))

2000

string_set set = {};

2001

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

2002

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

2003

}

2004

2005

static void

2006

test_string_set_cleared_does_not_contain_str(__attribute__((unused))

2007

test_fixture *fixture,

2008

__attribute__((unused))

2009

gconstpointer user_data){

2010

__attribute__((cleanup(string_set_clear)))

2011

string_set set = {};

2012

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

2013

string_set_clear(&set);

2014

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

2015

}

2016

2017

static

2018

void test_string_set_swap_one_with_empty(__attribute__((unused))

2019

test_fixture *fixture,

2020

__attribute__((unused))

2021

gconstpointer user_data){

2022

__attribute__((cleanup(string_set_clear)))

2023

string_set set1 = {};

2024

__attribute__((cleanup(string_set_clear)))

2025

string_set set2 = {};

2026

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

2027

string_set_swap(&set1, &set2);

2028

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

2029

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

2030

}

2031

2032

static

2033

void test_string_set_swap_empty_with_one(__attribute__((unused))

2034

test_fixture *fixture,

2035

__attribute__((unused))

2036

gconstpointer user_data){

2037

__attribute__((cleanup(string_set_clear)))

2038

string_set set1 = {};

2039

__attribute__((cleanup(string_set_clear)))

2040

string_set set2 = {};

2041

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

2042

string_set_swap(&set1, &set2);

2043

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

2044

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

2045

}

2046

2047

static void test_string_set_swap_one_with_one(__attribute__((unused))

2048

test_fixture *fixture,

2049

__attribute__((unused))

2050

gconstpointer

2051

user_data){

2052

__attribute__((cleanup(string_set_clear)))

2053

string_set set1 = {};

2054

__attribute__((cleanup(string_set_clear)))

2055

string_set set2 = {};

2056

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

2057

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

2058

string_set_swap(&set1, &set2);

2059

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

2060

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

2061

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

2062

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

2063

}

2064

2065

static bool fd_has_cloexec_and_nonblock(const int);

2066

2067

static bool epoll_set_contains(int, int, uint32_t);

2068

2069

static void test_start_mandos_client(test_fixture *fixture,

2070

__attribute__((unused))

2071

gconstpointer user_data){

2072

2073

bool mandos_client_exited = false;

2074

bool quit_now = false;

2075

__attribute__((cleanup(cleanup_close)))

2076

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2077

g_assert_cmpint(epoll_fd, >=, 0);

2078

__attribute__((cleanup(cleanup_queue)))

2079

task_queue *queue = create_queue();

2080

g_assert_nonnull(queue);

2081

buffer password = {};

2082

bool password_is_read = false;

2083

const char helper_directory[] = "/nonexistent";

2084

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

2085

2086

g_assert_true(start_mandos_client(queue, epoll_fd,

2087

&mandos_client_exited, &quit_now,

2088

&password, &password_is_read,

2089

&fixture->orig_sigaction,

2090

fixture->orig_sigmask,

2091

helper_directory, 0, 0, argv));

2092

2093

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

2094

2095

const task_context *const added_wait_task

2096

= find_matching_task(queue, (task_context){

2097

.func=wait_for_mandos_client_exit,

2098

.mandos_client_exited=&mandos_client_exited,

2099

.quit_now=&quit_now,

2100

});

2101

g_assert_nonnull(added_wait_task);

2102

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

2103

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

2104

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

2105

2106

const task_context *const added_read_task

2107

= find_matching_task(queue, (task_context){

2108

.func=read_mandos_client_output,

2109

.epoll_fd=epoll_fd,

2110

.password=&password,

2111

.password_is_read=&password_is_read,

2112

.quit_now=&quit_now,

2113

});

2114

g_assert_nonnull(added_read_task);

2115

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

2116

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

2117

g_assert_true(epoll_set_contains(epoll_fd, added_read_task->fd,

2118

EPOLLIN | EPOLLRDHUP));

2119

}

2120

2121

static bool fd_has_cloexec_and_nonblock(const int fd){

2122

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

2123

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

2124

return ((socket_fd_flags >= 0)

2125

and (socket_fd_flags & FD_CLOEXEC)

2126

and (socket_file_flags >= 0)

2127

and (socket_file_flags & O_NONBLOCK));

2128

}

2129

2130

__attribute__((const))

2131

bool is_privileged(void){

2132

uid_t user = getuid() + 1;

2133

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

2134

user++;

2135

}

2136

gid_t group = getuid() + 1;

2137

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

2138

group++;

2139

}

2140

const pid_t pid = fork();

2141

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

2142

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

2143

if(errno != EPERM){

2144

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

2145

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

2146

}

2147

exit(EXIT_FAILURE);

2148

}

2149

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

2150

if(errno != EPERM){

2151

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

2152

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

2153

}

2154

exit(EXIT_FAILURE);

2155

}

2156

exit(EXIT_SUCCESS);

2157

}

2158

int status;

2159

waitpid(pid, &status, 0);

2160

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

2161

return true;

2162

}

2163

return false;

2164

}

2165

2166

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

2167

/* Only scan for events in this eventmask */

2168

const uint32_t eventmask = EPOLLIN | EPOLLOUT | EPOLLRDHUP;

2169

__attribute__((cleanup(cleanup_string)))

2170

char *fdinfo_name = NULL;

2171

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

2172

g_assert_cmpint(ret, >, 0);

2173

g_assert_nonnull(fdinfo_name);

2174

2175

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

2176

g_assert_nonnull(fdinfo);

2177

uint32_t reported_events;

2178

buffer line = {};

2179

int found_fd = -1;

2180

2181

do {

2182

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

2183

break;

2184

}

2185

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

2186

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

2187

&found_fd, &reported_events) == 2){

2188

if(found_fd == fd){

2189

break;

2190

}

2191

}

2192

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

2193

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

2194

free(line.data);

2195

if(found_fd != fd){

2196

return false;

2197

}

2198

2199

if(events == 0){

2200

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

2201

return true;

2202

}

2203

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

2204

}

2205

2206

static void test_start_mandos_client_execv(test_fixture *fixture,

2207

__attribute__((unused))

2208

gconstpointer user_data){

2209

bool mandos_client_exited = false;

2210

bool quit_now = false;

2211

__attribute__((cleanup(cleanup_close)))

2212

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2213

g_assert_cmpint(epoll_fd, >=, 0);

2214

__attribute__((cleanup(cleanup_queue)))

2215

task_queue *queue = create_queue();

2216

g_assert_nonnull(queue);

2217

__attribute__((cleanup(cleanup_buffer)))

2218

buffer password = {};

2219

const char helper_directory[] = "/nonexistent";

2220

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

2221

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

2222

2223

{

2224

__attribute__((cleanup(cleanup_close)))

2225

const int devnull_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);

2226

g_assert_cmpint(devnull_fd, >=, 0);

2227

__attribute__((cleanup(cleanup_close)))

2228

const int real_stderr_fd = dup(STDERR_FILENO);

2229

g_assert_cmpint(real_stderr_fd, >=, 0);

2230

dup2(devnull_fd, STDERR_FILENO);

2231

2232

const bool success = start_mandos_client(queue, epoll_fd,

2233

&mandos_client_exited,

2234

&quit_now,

2235

&password,

2236

(bool[]){false},

2237

&fixture->orig_sigaction,

2238

fixture->orig_sigmask,

2239

helper_directory, 0, 0,

2240

argv);

2241

dup2(real_stderr_fd, STDERR_FILENO);

2242

g_assert_true(success);

2243

}

2244

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

2245

2246

struct timespec starttime, currtime;

2247

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

2248

do {

2249

queue->next_run = 0;

2250

string_set cancelled_filenames = {};

2251

2252

{

2253

__attribute__((cleanup(cleanup_close)))

2254

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

2255

O_WRONLY | O_CLOEXEC);

2256

g_assert_cmpint(devnull_fd, >=, 0);

2257

__attribute__((cleanup(cleanup_close)))

2258

const int real_stderr_fd = dup(STDERR_FILENO);

2259

g_assert_cmpint(real_stderr_fd, >=, 0);

2260

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

2261

dup2(devnull_fd, STDERR_FILENO);

2262

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

2263

&quit_now);

2264

dup2(real_stderr_fd, STDERR_FILENO);

2265

if(not success){

2266

break;

2267

}

2268

}

2269

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

2270

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

2271

and (not quit_now)

2272

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

2273

2274

g_assert_true(quit_now);

2275

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

2276

g_assert_true(mandos_client_exited);

2277

}

2278

2279

static void test_start_mandos_client_suid_euid(test_fixture *fixture,

2280

__attribute__((unused))

2281

gconstpointer

2282

user_data){

2283

if(not is_privileged()){

2284

g_test_skip("Not privileged");

2285

return;

2286

}

2287

2288

bool mandos_client_exited = false;

2289

bool quit_now = false;

2290

__attribute__((cleanup(cleanup_close)))

2291

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2292

g_assert_cmpint(epoll_fd, >=, 0);

2293

__attribute__((cleanup(cleanup_queue)))

2294

task_queue *queue = create_queue();

2295

g_assert_nonnull(queue);

2296

__attribute__((cleanup(cleanup_buffer)))

2297

buffer password = {};

2298

bool password_is_read = false;

2299

const char helper_directory[] = "/nonexistent";

2300

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

2301

uid_t user = 1000;

2302

gid_t group = 1001;

2303

2304

const bool success = start_mandos_client(queue, epoll_fd,

2305

&mandos_client_exited,

2306

&quit_now, &password,

2307

&password_is_read,

2308

&fixture->orig_sigaction,

2309

fixture->orig_sigmask,

2310

helper_directory, user,

2311

group, argv);

2312

g_assert_true(success);

2313

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

2314

2315

struct timespec starttime, currtime;

2316

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

2317

do {

2318

queue->next_run = 0;

2319

string_set cancelled_filenames = {};

2320

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

2321

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

2322

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

2323

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

2324

and (not quit_now)

2325

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

2326

2327

g_assert_false(quit_now);

2328

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

2329

g_assert_true(mandos_client_exited);

2330

2331

g_assert_true(password_is_read);

2332

g_assert_nonnull(password.data);

2333

2334

uintmax_t id;

2335

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

2336

==, 1);

2337

g_assert_true((uid_t)id == id);

2338

2339

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

2340

}

2341

2342

static void test_start_mandos_client_suid_egid(test_fixture *fixture,

2343

__attribute__((unused))

2344

gconstpointer

2345

user_data){

2346

if(not is_privileged()){

2347

g_test_skip("Not privileged");

2348

return;

2349

}

2350

2351

bool mandos_client_exited = false;

2352

bool quit_now = false;

2353

__attribute__((cleanup(cleanup_close)))

2354

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2355

g_assert_cmpint(epoll_fd, >=, 0);

2356

__attribute__((cleanup(cleanup_queue)))

2357

task_queue *queue = create_queue();

2358

g_assert_nonnull(queue);

2359

__attribute__((cleanup(cleanup_buffer)))

2360

buffer password = {};

2361

bool password_is_read = false;

2362

const char helper_directory[] = "/nonexistent";

2363

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

2364

uid_t user = 1000;

2365

gid_t group = 1001;

2366

2367

const bool success = start_mandos_client(queue, epoll_fd,

2368

&mandos_client_exited,

2369

&quit_now, &password,

2370

&password_is_read,

2371

&fixture->orig_sigaction,

2372

fixture->orig_sigmask,

2373

helper_directory, user,

2374

group, argv);

2375

g_assert_true(success);

2376

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

2377

2378

struct timespec starttime, currtime;

2379

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

2380

do {

2381

queue->next_run = 0;

2382

string_set cancelled_filenames = {};

2383

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

2384

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

2385

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

2386

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

2387

and (not quit_now)

2388

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

2389

2390

g_assert_false(quit_now);

2391

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

2392

g_assert_true(mandos_client_exited);

2393

2394

g_assert_true(password_is_read);

2395

g_assert_nonnull(password.data);

2396

2397

uintmax_t id;

2398

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

2399

==, 1);

2400

g_assert_true((gid_t)id == id);

2401

2402

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

2403

}

2404

2405

static void test_start_mandos_client_suid_ruid(test_fixture *fixture,

2406

__attribute__((unused))

2407

gconstpointer

2408

user_data){

2409

if(not is_privileged()){

2410

g_test_skip("Not privileged");

2411

return;

2412

}

2413

2414

bool mandos_client_exited = false;

2415

bool quit_now = false;

2416

__attribute__((cleanup(cleanup_close)))

2417

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2418

g_assert_cmpint(epoll_fd, >=, 0);

2419

__attribute__((cleanup(cleanup_queue)))

2420

task_queue *queue = create_queue();

2421

g_assert_nonnull(queue);

2422

__attribute__((cleanup(cleanup_buffer)))

2423

buffer password = {};

2424

bool password_is_read = false;

2425

const char helper_directory[] = "/nonexistent";

2426

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

2427

NULL };

2428

uid_t user = 1000;

2429

gid_t group = 1001;

2430

2431

const bool success = start_mandos_client(queue, epoll_fd,

2432

&mandos_client_exited,

2433

&quit_now, &password,

2434

&password_is_read,

2435

&fixture->orig_sigaction,

2436

fixture->orig_sigmask,

2437

helper_directory, user,

2438

group, argv);

2439

g_assert_true(success);

2440

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

2441

2442

struct timespec starttime, currtime;

2443

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

2444

do {

2445

queue->next_run = 0;

2446

string_set cancelled_filenames = {};

2447

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

2448

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

2449

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

2450

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

2451

and (not quit_now)

2452

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

2453

2454

g_assert_false(quit_now);

2455

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

2456

g_assert_true(mandos_client_exited);

2457

2458

g_assert_true(password_is_read);

2459

g_assert_nonnull(password.data);

2460

2461

uintmax_t id;

2462

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

2463

==, 1);

2464

g_assert_true((uid_t)id == id);

2465

2466

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

2467

}

2468

2469

static void test_start_mandos_client_suid_rgid(test_fixture *fixture,

2470

__attribute__((unused))

2471

gconstpointer

2472

user_data){

2473

if(not is_privileged()){

2474

g_test_skip("Not privileged");

2475

return;

2476

}

2477

2478

bool mandos_client_exited = false;

2479

bool quit_now = false;

2480

__attribute__((cleanup(cleanup_close)))

2481

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2482

g_assert_cmpint(epoll_fd, >=, 0);

2483

__attribute__((cleanup(cleanup_queue)))

2484

task_queue *queue = create_queue();

2485

g_assert_nonnull(queue);

2486

__attribute__((cleanup(cleanup_buffer)))

2487

buffer password = {};

2488

bool password_is_read = false;

2489

const char helper_directory[] = "/nonexistent";

2490

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

2491

NULL };

2492

uid_t user = 1000;

2493

gid_t group = 1001;

2494

2495

const bool success = start_mandos_client(queue, epoll_fd,

2496

&mandos_client_exited,

2497

&quit_now, &password,

2498

&password_is_read,

2499

&fixture->orig_sigaction,

2500

fixture->orig_sigmask,

2501

helper_directory, user,

2502

group, argv);

2503

g_assert_true(success);

2504

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

2505

2506

struct timespec starttime, currtime;

2507

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

2508

do {

2509

queue->next_run = 0;

2510

string_set cancelled_filenames = {};

2511

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

2512

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

2513

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

2514

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

2515

and (not quit_now)

2516

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

2517

2518

g_assert_false(quit_now);

2519

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

2520

g_assert_true(mandos_client_exited);

2521

2522

g_assert_true(password_is_read);

2523

g_assert_nonnull(password.data);

2524

2525

uintmax_t id;

2526

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

2527

==, 1);

2528

g_assert_true((gid_t)id == id);

2529

2530

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

2531

}

2532

2533

static void test_start_mandos_client_read(test_fixture *fixture,

2534

__attribute__((unused))

2535

gconstpointer user_data){

2536

bool mandos_client_exited = false;

2537

bool quit_now = false;

2538

__attribute__((cleanup(cleanup_close)))

2539

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2540

g_assert_cmpint(epoll_fd, >=, 0);

2541

__attribute__((cleanup(cleanup_queue)))

2542

task_queue *queue = create_queue();

2543

g_assert_nonnull(queue);

2544

__attribute__((cleanup(cleanup_buffer)))

2545

buffer password = {};

2546

bool password_is_read = false;

2547

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

2548

const char helper_directory[] = "/nonexistent";

2549

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

2550

NULL };

2551

2552

const bool success = start_mandos_client(queue, epoll_fd,

2553

&mandos_client_exited,

2554

&quit_now, &password,

2555

&password_is_read,

2556

&fixture->orig_sigaction,

2557

fixture->orig_sigmask,

2558

helper_directory, 0, 0,

2559

argv);

2560

g_assert_true(success);

2561

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

2562

2563

struct timespec starttime, currtime;

2564

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

2565

do {

2566

queue->next_run = 0;

2567

string_set cancelled_filenames = {};

2568

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

2569

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

2570

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

2571

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

2572

and (not quit_now)

2573

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

2574

2575

g_assert_false(quit_now);

2576

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

2577

g_assert_true(mandos_client_exited);

2578

2579

g_assert_true(password_is_read);

2580

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

2581

sizeof(dummy_test_password)-1);

2582

g_assert_nonnull(password.data);

2583

g_assert_cmpint(memcmp(dummy_test_password, password.data,

2584

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

2585

}

2586

2587

static

2588

void test_start_mandos_client_helper_directory(test_fixture *fixture,

2589

__attribute__((unused))

2590

gconstpointer

2591

user_data){

2592

bool mandos_client_exited = false;

2593

bool quit_now = false;

2594

__attribute__((cleanup(cleanup_close)))

2595

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2596

g_assert_cmpint(epoll_fd, >=, 0);

2597

__attribute__((cleanup(cleanup_queue)))

2598

task_queue *queue = create_queue();

2599

g_assert_nonnull(queue);

2600

__attribute__((cleanup(cleanup_buffer)))

2601

buffer password = {};

2602

bool password_is_read = false;

2603

const char helper_directory[] = "/nonexistent";

2604

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

2605

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

2606

2607

const bool success = start_mandos_client(queue, epoll_fd,

2608

&mandos_client_exited,

2609

&quit_now, &password,

2610

&password_is_read,

2611

&fixture->orig_sigaction,

2612

fixture->orig_sigmask,

2613

helper_directory, 0, 0,

2614

argv);

2615

g_assert_true(success);

2616

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

2617

2618

struct timespec starttime, currtime;

2619

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

2620

do {

2621

queue->next_run = 0;

2622

string_set cancelled_filenames = {};

2623

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

2624

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

2625

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

2626

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

2627

and (not quit_now)

2628

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

2629

2630

g_assert_false(quit_now);

2631

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

2632

g_assert_true(mandos_client_exited);

2633

2634

g_assert_true(password_is_read);

2635

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

2636

sizeof(helper_directory)-1);

2637

g_assert_nonnull(password.data);

2638

g_assert_cmpint(memcmp(helper_directory, password.data,

2639

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

2640

}

2641

2642

__attribute__((nonnull, warn_unused_result))

2643

static bool proc_status_sigblk_to_sigset(const char *const,

2644

sigset_t *const);

2645

2646

static void test_start_mandos_client_sigmask(test_fixture *fixture,

2647

__attribute__((unused))

2648

gconstpointer user_data){

2649

bool mandos_client_exited = false;

2650

bool quit_now = false;

2651

__attribute__((cleanup(cleanup_close)))

2652

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2653

g_assert_cmpint(epoll_fd, >=, 0);

2654

__attribute__((cleanup(cleanup_queue)))

2655

task_queue *queue = create_queue();

2656

g_assert_nonnull(queue);

2657

__attribute__((cleanup(cleanup_buffer)))

2658

buffer password = {};

2659

bool password_is_read = false;

2660

const char helper_directory[] = "/nonexistent";

2661

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

2662

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

2663

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

2664

2665

g_assert_true(start_mandos_client(queue, epoll_fd,

2666

&mandos_client_exited, &quit_now,

2667

&password, &password_is_read,

2668

&fixture->orig_sigaction,

2669

fixture->orig_sigmask,

2670

helper_directory, 0, 0, argv));

2671

2672

struct timespec starttime, currtime;

2673

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

2674

do {

2675

queue->next_run = 0;

2676

string_set cancelled_filenames = {};

2677

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

2678

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

2679

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

2680

} while((not (mandos_client_exited and password_is_read))

2681

and (not quit_now)

2682

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

2683

g_assert_true(mandos_client_exited);

2684

g_assert_true(password_is_read);

2685

2686

sigset_t parsed_sigmask;

2687

g_assert_true(proc_status_sigblk_to_sigset(password.data,

2688

&parsed_sigmask));

2689

2690

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

2691

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

2692

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

2693

g_assert_true(has_signal);

2694

} else {

2695

g_assert_false(has_signal);

2696

}

2697

}

2698

}

2699

2700

__attribute__((nonnull, warn_unused_result))

2701

static bool proc_status_sigblk_to_sigset(const char *const sigblk,

2702

sigset_t *const sigmask){

2703

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

2704

uintmax_t scanned_sigmask;

2705

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

2706

return false;

2707

}

2708

if(sigemptyset(sigmask) != 0){

2709

return false;

2710

}

2711

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

2712

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

2713

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

2714

return false;

2715

}

2716

}

2717

}

2718

return true;

2719

}

2720

2721

static void run_task_with_stderr_to_dev_null(const task_context task,

2722

task_queue *const queue);

2723

2724

static

2725

void test_wait_for_mandos_client_exit_badpid(__attribute__((unused))

2726

test_fixture *fixture,

2727

__attribute__((unused))

2728

gconstpointer user_data){

2729

2730

bool mandos_client_exited = false;

2731

bool quit_now = false;

2732

2733

__attribute__((cleanup(cleanup_queue)))

2734

task_queue *queue = create_queue();

2735

g_assert_nonnull(queue);

2736

const task_context task = {

2737

.func=wait_for_mandos_client_exit,

2738

.pid=1,

2739

.mandos_client_exited=&mandos_client_exited,

2740

.quit_now=&quit_now,

2741

};

2742

run_task_with_stderr_to_dev_null(task, queue);

2743

2744

g_assert_false(mandos_client_exited);

2745

g_assert_true(quit_now);

2746

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

2747

}

2748

2749

static void run_task_with_stderr_to_dev_null(const task_context task,

2750

task_queue *const queue){

2751

FILE *real_stderr = stderr;

2752

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

2753

g_assert_nonnull(devnull);

2754

2755

stderr = devnull;

2756

task.func(task, queue);

2757

stderr = real_stderr;

2758

2759

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

2760

}

2761

2762

static

2763

void test_wait_for_mandos_client_exit_noexit(test_fixture *fixture,

2764

__attribute__((unused))

2765

gconstpointer user_data){

2766

bool mandos_client_exited = false;

2767

bool quit_now = false;

2768

2769

pid_t create_eternal_process(void){

2770

const pid_t pid = fork();

2771

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

2772

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

2773

_exit(EXIT_FAILURE);

2774

}

2775

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

2776

_exit(EXIT_FAILURE);

2777

}

2778

while(true){

2779

pause();

2780

}

2781

}

2782

return pid;

2783

}

2784

pid_t pid = create_eternal_process();

2785

g_assert_true(pid != -1);

2786

2787

__attribute__((cleanup(cleanup_queue)))

2788

task_queue *queue = create_queue();

2789

g_assert_nonnull(queue);

2790

const task_context task = {

2791

.func=wait_for_mandos_client_exit,

2792

.pid=pid,

2793

.mandos_client_exited=&mandos_client_exited,

2794

.quit_now=&quit_now,

2795

};

2796

task.func(task, queue);

2797

2798

g_assert_false(mandos_client_exited);

2799

g_assert_false(quit_now);

2800

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

2801

2802

g_assert_nonnull(find_matching_task(queue, (task_context){

2803

.func=wait_for_mandos_client_exit,

2804

.pid=task.pid,

2805

.mandos_client_exited=&mandos_client_exited,

2806

.quit_now=&quit_now,

2807

}));

2808

}

2809

2810

static

2811

void test_wait_for_mandos_client_exit_success(test_fixture *fixture,

2812

__attribute__((unused))

2813

gconstpointer

2814

user_data){

2815

bool mandos_client_exited = false;

2816

bool quit_now = false;

2817

2818

pid_t create_successful_process(void){

2819

const pid_t pid = fork();

2820

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

2821

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

2822

_exit(EXIT_FAILURE);

2823

}

2824

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

2825

_exit(EXIT_FAILURE);

2826

}

2827

exit(EXIT_SUCCESS);

2828

}

2829

return pid;

2830

}

2831

const pid_t pid = create_successful_process();

2832

g_assert_true(pid != -1);

2833

2834

__attribute__((cleanup(cleanup_queue)))

2835

task_queue *queue = create_queue();

2836

g_assert_nonnull(queue);

2837

const task_context initial_task = {

2838

.func=wait_for_mandos_client_exit,

2839

.pid=pid,

2840

.mandos_client_exited=&mandos_client_exited,

2841

.quit_now=&quit_now,

2842

};

2843

g_assert_true(add_to_queue(queue, initial_task));

2844

2845

struct timespec starttime, currtime;

2846

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

2847

__attribute__((cleanup(cleanup_close)))

2848

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2849

do {

2850

queue->next_run = 0;

2851

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

2852

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

2853

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

2854

} while((not mandos_client_exited)

2855

and (not quit_now)

2856

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

2857

2858

g_assert_true(mandos_client_exited);

2859

g_assert_false(quit_now);

2860

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

2861

}

2862

2863

static

2864

void test_wait_for_mandos_client_exit_failure(test_fixture *fixture,

2865

__attribute__((unused))

2866

gconstpointer

2867

user_data){

2868

bool mandos_client_exited = false;

2869

bool quit_now = false;

2870

2871

pid_t create_failing_process(void){

2872

const pid_t pid = fork();

2873

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

2874

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

2875

_exit(EXIT_FAILURE);

2876

}

2877

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

2878

_exit(EXIT_FAILURE);

2879

}

2880

exit(EXIT_FAILURE);

2881

}

2882

return pid;

2883

}

2884

const pid_t pid = create_failing_process();

2885

g_assert_true(pid != -1);

2886

2887

__attribute__((cleanup(string_set_clear)))

2888

string_set cancelled_filenames = {};

2889

__attribute__((cleanup(cleanup_close)))

2890

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2891

g_assert_cmpint(epoll_fd, >=, 0);

2892

__attribute__((cleanup(cleanup_queue)))

2893

task_queue *queue = create_queue();

2894

g_assert_nonnull(queue);

2895

g_assert_true(add_to_queue(queue, (task_context){

2896

.func=wait_for_mandos_client_exit,

2897

.pid=pid,

2898

.mandos_client_exited=&mandos_client_exited,

2899

.quit_now=&quit_now,

2900

}));

2901

2902

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

2903

2904

__attribute__((cleanup(cleanup_close)))

2905

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

2906

O_WRONLY | O_CLOEXEC);

2907

g_assert_cmpint(devnull_fd, >=, 0);

2908

__attribute__((cleanup(cleanup_close)))

2909

const int real_stderr_fd = dup(STDERR_FILENO);

2910

g_assert_cmpint(real_stderr_fd, >=, 0);

2911

2912

struct timespec starttime, currtime;

2913

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

2914

do {

2915

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

2916

dup2(devnull_fd, STDERR_FILENO);

2917

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

2918

&quit_now);

2919

dup2(real_stderr_fd, STDERR_FILENO);

2920

if(not success){

2921

break;

2922

}

2923

2924

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

2925

} while((not mandos_client_exited)

2926

and (not quit_now)

2927

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

2928

2929

g_assert_true(quit_now);

2930

g_assert_true(mandos_client_exited);

2931

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

2932

}

2933

2934

static

2935

void test_wait_for_mandos_client_exit_killed(test_fixture *fixture,

2936

__attribute__((unused))

2937

gconstpointer user_data){

2938

bool mandos_client_exited = false;

2939

bool quit_now = false;

2940

2941

pid_t create_killed_process(void){

2942

const pid_t pid = fork();

2943

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

2944

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

2945

_exit(EXIT_FAILURE);

2946

}

2947

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

2948

_exit(EXIT_FAILURE);

2949

}

2950

while(true){

2951

pause();

2952

}

2953

}

2954

kill(pid, SIGKILL);

2955

return pid;

2956

}

2957

const pid_t pid = create_killed_process();

2958

g_assert_true(pid != -1);

2959

2960

__attribute__((cleanup(string_set_clear)))

2961

string_set cancelled_filenames = {};

2962

__attribute__((cleanup(cleanup_close)))

2963

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2964

g_assert_cmpint(epoll_fd, >=, 0);

2965

__attribute__((cleanup(cleanup_queue)))

2966

task_queue *queue = create_queue();

2967

g_assert_nonnull(queue);

2968

g_assert_true(add_to_queue(queue, (task_context){

2969

.func=wait_for_mandos_client_exit,

2970

.pid=pid,

2971

.mandos_client_exited=&mandos_client_exited,

2972

.quit_now=&quit_now,

2973

}));

2974

2975

__attribute__((cleanup(cleanup_close)))

2976

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

2977

O_WRONLY | O_CLOEXEC);

2978

g_assert_cmpint(devnull_fd, >=, 0);

2979

__attribute__((cleanup(cleanup_close)))

2980

const int real_stderr_fd = dup(STDERR_FILENO);

2981

g_assert_cmpint(real_stderr_fd, >=, 0);

2982

2983

struct timespec starttime, currtime;

2984

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

2985

do {

2986

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

2987

dup2(devnull_fd, STDERR_FILENO);

2988

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

2989

&quit_now);

2990

dup2(real_stderr_fd, STDERR_FILENO);

2991

if(not success){

2992

break;

2993

}

2994

2995

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

2996

} while((not mandos_client_exited)

2997

and (not quit_now)

2998

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

2999

3000

g_assert_true(mandos_client_exited);

3001

g_assert_true(quit_now);

3002

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

3003

}

3004

3005

static bool epoll_set_does_not_contain(int, int);

3006

3007

static

3008

void test_read_mandos_client_output_readerror(__attribute__((unused))

3009

test_fixture *fixture,

3010

__attribute__((unused))

3011

gconstpointer

3012

user_data){

3013

__attribute__((cleanup(cleanup_close)))

3014

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3015

g_assert_cmpint(epoll_fd, >=, 0);

3016

3017

__attribute__((cleanup(cleanup_buffer)))

3018

buffer password = {};

3019

3020

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

3021

const int fd = open("/proc/self/mem", O_RDONLY | O_CLOEXEC);

3022

3023

bool password_is_read = false;

3024

bool quit_now = false;

3025

__attribute__((cleanup(cleanup_queue)))

3026

task_queue *queue = create_queue();

3027

g_assert_nonnull(queue);

3028

3029

task_context task = {

3030

.func=read_mandos_client_output,

3031

.epoll_fd=epoll_fd,

3032

.fd=fd,

3033

.password=&password,

3034

.password_is_read=&password_is_read,

3035

.quit_now=&quit_now,

3036

};

3037

run_task_with_stderr_to_dev_null(task, queue);

3038

g_assert_false(password_is_read);

3039

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

3040

g_assert_true(quit_now);

3041

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

3042

3043

g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));

3044

3045

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

3046

}

3047

3048

static bool epoll_set_does_not_contain(int epoll_fd, int fd){

3049

return not epoll_set_contains(epoll_fd, fd, 0);

3050

}

3051

3052

static

3053

void test_read_mandos_client_output_nodata(__attribute__((unused))

3054

test_fixture *fixture,

3055

__attribute__((unused))

3056

gconstpointer user_data){

3057

__attribute__((cleanup(cleanup_close)))

3058

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3059

g_assert_cmpint(epoll_fd, >=, 0);

3060

3061

int pipefds[2];

3062

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

3063

3064

__attribute__((cleanup(cleanup_buffer)))

3065

buffer password = {};

3066

3067

bool password_is_read = false;

3068

bool quit_now = false;

3069

__attribute__((cleanup(cleanup_queue)))

3070

task_queue *queue = create_queue();

3071

g_assert_nonnull(queue);

3072

3073

task_context task = {

3074

.func=read_mandos_client_output,

3075

.epoll_fd=epoll_fd,

3076

.fd=pipefds[0],

3077

.password=&password,

3078

.password_is_read=&password_is_read,

3079

.quit_now=&quit_now,

3080

};

3081

task.func(task, queue);

3082

g_assert_false(password_is_read);

3083

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

3084

g_assert_false(quit_now);

3085

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

3086

3087

g_assert_nonnull(find_matching_task(queue, (task_context){

3088

.func=read_mandos_client_output,

3089

.epoll_fd=epoll_fd,

3090

.fd=pipefds[0],

3091

.password=&password,

3092

.password_is_read=&password_is_read,

3093

.quit_now=&quit_now,

3094

}));

3095

3096

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3097

EPOLLIN | EPOLLRDHUP));

3098

3099

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

3100

}

3101

3102

static void test_read_mandos_client_output_eof(__attribute__((unused))

3103

test_fixture *fixture,

3104

__attribute__((unused))

3105

gconstpointer

3106

user_data){

3107

__attribute__((cleanup(cleanup_close)))

3108

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3109

g_assert_cmpint(epoll_fd, >=, 0);

3110

3111

int pipefds[2];

3112

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

3113

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

3114

3115

__attribute__((cleanup(cleanup_buffer)))

3116

buffer password = {};

3117

3118

bool password_is_read = false;

3119

bool quit_now = false;

3120

__attribute__((cleanup(cleanup_queue)))

3121

task_queue *queue = create_queue();

3122

g_assert_nonnull(queue);

3123

3124

task_context task = {

3125

.func=read_mandos_client_output,

3126

.epoll_fd=epoll_fd,

3127

.fd=pipefds[0],

3128

.password=&password,

3129

.password_is_read=&password_is_read,

3130

.quit_now=&quit_now,

3131

};

3132

task.func(task, queue);

3133

g_assert_true(password_is_read);

3134

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

3135

g_assert_false(quit_now);

3136

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

3137

3138

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

3139

3140

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

3141

}

3142

3143

static

3144

void test_read_mandos_client_output_once(__attribute__((unused))

3145

test_fixture *fixture,

3146

__attribute__((unused))

3147

gconstpointer user_data){

3148

__attribute__((cleanup(cleanup_close)))

3149

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3150

g_assert_cmpint(epoll_fd, >=, 0);

3151

3152

int pipefds[2];

3153

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

3154

3155

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

3156

/* Start with a pre-allocated buffer */

3157

__attribute__((cleanup(cleanup_buffer)))

3158

buffer password = {

3159

.data=malloc(sizeof(dummy_test_password)),

3160

.length=0,

3161

.allocated=sizeof(dummy_test_password),

3162

};

3163

g_assert_nonnull(password.data);

3164

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

3165

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

3166

}

3167

3168

bool password_is_read = false;

3169

bool quit_now = false;

3170

__attribute__((cleanup(cleanup_queue)))

3171

task_queue *queue = create_queue();

3172

g_assert_nonnull(queue);

3173

3174

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3175

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

3176

sizeof(dummy_test_password)),

3177

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

3178

3179

task_context task = {

3180

.func=read_mandos_client_output,

3181

.epoll_fd=epoll_fd,

3182

.fd=pipefds[0],

3183

.password=&password,

3184

.password_is_read=&password_is_read,

3185

.quit_now=&quit_now,

3186

};

3187

task.func(task, queue);

3188

3189

g_assert_false(password_is_read);

3190

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

3191

(int)sizeof(dummy_test_password));

3192

g_assert_nonnull(password.data);

3193

g_assert_cmpint(memcmp(password.data, dummy_test_password,

3194

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

3195

3196

g_assert_false(quit_now);

3197

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

3198

3199

g_assert_nonnull(find_matching_task(queue, (task_context){

3200

.func=read_mandos_client_output,

3201

.epoll_fd=epoll_fd,

3202

.fd=pipefds[0],

3203

.password=&password,

3204

.password_is_read=&password_is_read,

3205

.quit_now=&quit_now,

3206

}));

3207

3208

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3209

EPOLLIN | EPOLLRDHUP));

3210

3211

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

3212

}

3213

3214

static

3215

void test_read_mandos_client_output_malloc(__attribute__((unused))

3216

test_fixture *fixture,

3217

__attribute__((unused))

3218

gconstpointer user_data){

3219

__attribute__((cleanup(cleanup_close)))

3220

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3221

g_assert_cmpint(epoll_fd, >=, 0);

3222

3223

int pipefds[2];

3224

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

3225

3226

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

3227

/* Start with an empty buffer */

3228

__attribute__((cleanup(cleanup_buffer)))

3229

buffer password = {};

3230

3231

bool password_is_read = false;

3232

bool quit_now = false;

3233

__attribute__((cleanup(cleanup_queue)))

3234

task_queue *queue = create_queue();

3235

g_assert_nonnull(queue);

3236

3237

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3238

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

3239

sizeof(dummy_test_password)),

3240

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

3241

3242

task_context task = {

3243

.func=read_mandos_client_output,

3244

.epoll_fd=epoll_fd,

3245

.fd=pipefds[0],

3246

.password=&password,

3247

.password_is_read=&password_is_read,

3248

.quit_now=&quit_now,

3249

};

3250

task.func(task, queue);

3251

3252

g_assert_false(password_is_read);

3253

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

3254

(int)sizeof(dummy_test_password));

3255

g_assert_nonnull(password.data);

3256

g_assert_cmpint(memcmp(password.data, dummy_test_password,

3257

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

3258

3259

g_assert_false(quit_now);

3260

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

3261

3262

g_assert_nonnull(find_matching_task(queue, (task_context){

3263

.func=read_mandos_client_output,

3264

.epoll_fd=epoll_fd,

3265

.fd=pipefds[0],

3266

.password=&password,

3267

.password_is_read=&password_is_read,

3268

.quit_now=&quit_now,

3269

}));

3270

3271

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3272

EPOLLIN | EPOLLRDHUP));

3273

3274

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

3275

}

3276

3277

static

3278

void test_read_mandos_client_output_append(__attribute__((unused))

3279

test_fixture *fixture,

3280

__attribute__((unused))

3281

gconstpointer user_data){

3282

__attribute__((cleanup(cleanup_close)))

3283

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3284

g_assert_cmpint(epoll_fd, >=, 0);

3285

3286

int pipefds[2];

3287

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

3288

3289

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

3290

__attribute__((cleanup(cleanup_buffer)))

3291

buffer password = {

3292

.data=malloc(PIPE_BUF),

3293

.length=PIPE_BUF,

3294

.allocated=PIPE_BUF,

3295

};

3296

g_assert_nonnull(password.data);

3297

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

3298

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

3299

}

3300

3301

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

3302

char password_expected[PIPE_BUF];

3303

memcpy(password_expected, password.data, PIPE_BUF);

3304

3305

bool password_is_read = false;

3306

bool quit_now = false;

3307

__attribute__((cleanup(cleanup_queue)))

3308

task_queue *queue = create_queue();

3309

g_assert_nonnull(queue);

3310

3311

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3312

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

3313

sizeof(dummy_test_password)),

3314

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

3315

3316

task_context task = {

3317

.func=read_mandos_client_output,

3318

.epoll_fd=epoll_fd,

3319

.fd=pipefds[0],

3320

.password=&password,

3321

.password_is_read=&password_is_read,

3322

.quit_now=&quit_now,

3323

};

3324

task.func(task, queue);

3325

3326

g_assert_false(password_is_read);

3327

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

3328

PIPE_BUF + sizeof(dummy_test_password));

3329

g_assert_nonnull(password.data);

3330

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

3331

==, 0);

3332

g_assert_cmpint(memcmp(password.data + PIPE_BUF,

3333

dummy_test_password,

3334

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

3335

g_assert_false(quit_now);

3336

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

3337

3338

g_assert_nonnull(find_matching_task(queue, (task_context){

3339

.func=read_mandos_client_output,

3340

.epoll_fd=epoll_fd,

3341

.fd=pipefds[0],

3342

.password=&password,

3343

.password_is_read=&password_is_read,

3344

.quit_now=&quit_now,

3345

}));

3346

3347

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3348

EPOLLIN | EPOLLRDHUP));

3349

}

3350

3351

static char *make_temporary_directory(void);

3352

3353

static void test_add_inotify_dir_watch(__attribute__((unused))

3354

test_fixture *fixture,

3355

__attribute__((unused))

3356

gconstpointer user_data){

3357

__attribute__((cleanup(cleanup_close)))

3358

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3359

g_assert_cmpint(epoll_fd, >=, 0);

3360

__attribute__((cleanup(cleanup_queue)))

3361

task_queue *queue = create_queue();

3362

g_assert_nonnull(queue);

3363

__attribute__((cleanup(string_set_clear)))

3364

string_set cancelled_filenames = {};

3365

const mono_microsecs current_time = 0;

3366

3367

bool quit_now = false;

3368

buffer password = {};

3369

bool mandos_client_exited = false;

3370

bool password_is_read = false;

3371

3372

__attribute__((cleanup(cleanup_string)))

3373

char *tempdir = make_temporary_directory();

3374

g_assert_nonnull(tempdir);

3375

3376

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3377

&password, tempdir,

3378

&cancelled_filenames,

3379

&current_time,

3380

&mandos_client_exited,

3381

&password_is_read));

3382

3383

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

3384

3385

const task_context *const added_read_task

3386

= find_matching_task(queue, (task_context){

3387

.func=read_inotify_event,

3388

.epoll_fd=epoll_fd,

3389

.quit_now=&quit_now,

3390

.password=&password,

3391

.filename=tempdir,

3392

.cancelled_filenames=&cancelled_filenames,

3393

.current_time=&current_time,

3394

.mandos_client_exited=&mandos_client_exited,

3395

.password_is_read=&password_is_read,

3396

});

3397

g_assert_nonnull(added_read_task);

3398

3399

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

3400

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3401

g_assert_true(epoll_set_contains(added_read_task->epoll_fd,

3402

added_read_task->fd,

3403

EPOLLIN | EPOLLRDHUP));

3404

3405

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

3406

}

3407

3408

static char *make_temporary_directory(void){

3409

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

3410

g_assert_nonnull(name);

3411

char *result = mkdtemp(name);

3412

if(result == NULL){

3413

free(name);

3414

}

3415

return result;

3416

}

3417

3418

static void test_add_inotify_dir_watch_fail(__attribute__((unused))

3419

test_fixture *fixture,

3420

__attribute__((unused))

3421

gconstpointer user_data){

3422

__attribute__((cleanup(cleanup_close)))

3423

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3424

g_assert_cmpint(epoll_fd, >=, 0);

3425

__attribute__((cleanup(cleanup_queue)))

3426

task_queue *queue = create_queue();

3427

g_assert_nonnull(queue);

3428

__attribute__((cleanup(string_set_clear)))

3429

string_set cancelled_filenames = {};

3430

const mono_microsecs current_time = 0;

3431

3432

bool quit_now = false;

3433

buffer password = {};

3434

bool mandos_client_exited = false;

3435

bool password_is_read = false;

3436

3437

const char nonexistent_dir[] = "/nonexistent";

3438

3439

FILE *real_stderr = stderr;

3440

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

3441

g_assert_nonnull(devnull);

3442

stderr = devnull;

3443

g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3444

&password, nonexistent_dir,

3445

&cancelled_filenames,

3446

&current_time,

3447

&mandos_client_exited,

3448

&password_is_read));

3449

stderr = real_stderr;

3450

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

3451

3452

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

3453

}

3454

3455

static void test_add_inotify_dir_watch_EAGAIN(__attribute__((unused))

3456

test_fixture *fixture,

3457

__attribute__((unused))

3458

gconstpointer

3459

user_data){

3460

__attribute__((cleanup(cleanup_close)))

3461

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3462

g_assert_cmpint(epoll_fd, >=, 0);

3463

__attribute__((cleanup(cleanup_queue)))

3464

task_queue *queue = create_queue();

3465

g_assert_nonnull(queue);

3466

__attribute__((cleanup(string_set_clear)))

3467

string_set cancelled_filenames = {};

3468

const mono_microsecs current_time = 0;

3469

3470

bool quit_now = false;

3471

buffer password = {};

3472

bool mandos_client_exited = false;

3473

bool password_is_read = false;

3474

3475

__attribute__((cleanup(cleanup_string)))

3476

char *tempdir = make_temporary_directory();

3477

g_assert_nonnull(tempdir);

3478

3479

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3480

&password, tempdir,

3481

&cancelled_filenames,

3482

&current_time,

3483

&mandos_client_exited,

3484

&password_is_read));

3485

3486

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

3487

3488

const task_context *const added_read_task

3489

= find_matching_task(queue,

3490

(task_context){ .func=read_inotify_event });

3491

g_assert_nonnull(added_read_task);

3492

3493

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

3494

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3495

3496

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

3497

const size_t ievent_size = (sizeof(struct inotify_event)

3498

+ NAME_MAX + 1);

3499

struct inotify_event *ievent = malloc(ievent_size);

3500

g_assert_nonnull(ievent);

3501

3502

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

3503

-1);

3504

g_assert_cmpint(errno, ==, EAGAIN);

3505

3506

free(ievent);

3507

3508

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

3509

}

3510

3511

static char *make_temporary_file_in_directory(const char

3512

*const dir);

3513

3514

static

3515

void test_add_inotify_dir_watch_IN_CLOSE_WRITE(__attribute__((unused))

3516

test_fixture *fixture,

3517

__attribute__((unused))

3518

gconstpointer

3519

user_data){

3520

__attribute__((cleanup(cleanup_close)))

3521

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3522

g_assert_cmpint(epoll_fd, >=, 0);

3523

__attribute__((cleanup(cleanup_queue)))

3524

task_queue *queue = create_queue();

3525

g_assert_nonnull(queue);

3526

__attribute__((cleanup(string_set_clear)))

3527

string_set cancelled_filenames = {};

3528

const mono_microsecs current_time = 0;

3529

3530

bool quit_now = false;

3531

buffer password = {};

3532

bool mandos_client_exited = false;

3533

bool password_is_read = false;

3534

3535

__attribute__((cleanup(cleanup_string)))

3536

char *tempdir = make_temporary_directory();

3537

g_assert_nonnull(tempdir);

3538

3539

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3540

&password, tempdir,

3541

&cancelled_filenames,

3542

&current_time,

3543

&mandos_client_exited,

3544

&password_is_read));

3545

3546

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

3547

3548

const task_context *const added_read_task

3549

= find_matching_task(queue,

3550

(task_context){ .func=read_inotify_event });

3551

g_assert_nonnull(added_read_task);

3552

3553

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

3554

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3555

3556

__attribute__((cleanup(cleanup_string)))

3557

char *filename = make_temporary_file_in_directory(tempdir);

3558

g_assert_nonnull(filename);

3559

3560

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

3561

const size_t ievent_size = (sizeof(struct inotify_event)

3562

+ NAME_MAX + 1);

3563

struct inotify_event *ievent = malloc(ievent_size);

3564

g_assert_nonnull(ievent);

3565

3566

ssize_t read_size = 0;

3567

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

3568

3569

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

3570

g_assert_true(ievent->mask & IN_CLOSE_WRITE);

3571

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

3572

3573

free(ievent);

3574

3575

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

3576

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

3577

}

3578

3579

static char *make_temporary_prefixed_file_in_directory(const char

3580

*const prefix,

3581

const char

3582

*const dir){

3583

char *filename = NULL;

3584

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

3585

>, 0);

3586

g_assert_nonnull(filename);

3587

const int fd = mkostemp(filename, O_CLOEXEC);

3588

g_assert_cmpint(fd, >=, 0);

3589

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

3590

return filename;

3591

}

3592

3593

static char *make_temporary_file_in_directory(const char

3594

*const dir){

3595

return make_temporary_prefixed_file_in_directory("temp", dir);

3596

}

3597

3598

static

3599

void test_add_inotify_dir_watch_IN_MOVED_TO(__attribute__((unused))

3600

test_fixture *fixture,

3601

__attribute__((unused))

3602

gconstpointer user_data){

3603

__attribute__((cleanup(cleanup_close)))

3604

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3605

g_assert_cmpint(epoll_fd, >=, 0);

3606

__attribute__((cleanup(cleanup_queue)))

3607

task_queue *queue = create_queue();

3608

g_assert_nonnull(queue);

3609

__attribute__((cleanup(string_set_clear)))

3610

string_set cancelled_filenames = {};

3611

const mono_microsecs current_time = 0;

3612

3613

bool quit_now = false;

3614

buffer password = {};

3615

bool mandos_client_exited = false;

3616

bool password_is_read = false;

3617

3618

__attribute__((cleanup(cleanup_string)))

3619

char *watchdir = make_temporary_directory();

3620

g_assert_nonnull(watchdir);

3621

3622

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3623

&password, watchdir,

3624

&cancelled_filenames,

3625

&current_time,

3626

&mandos_client_exited,

3627

&password_is_read));

3628

3629

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

3630

3631

const task_context *const added_read_task

3632

= find_matching_task(queue,

3633

(task_context){ .func=read_inotify_event });

3634

g_assert_nonnull(added_read_task);

3635

3636

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

3637

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3638

3639

char *sourcedir = make_temporary_directory();

3640

g_assert_nonnull(sourcedir);

3641

3642

__attribute__((cleanup(cleanup_string)))

3643

char *filename = make_temporary_file_in_directory(sourcedir);

3644

g_assert_nonnull(filename);

3645

3646

__attribute__((cleanup(cleanup_string)))

3647

char *targetfilename = NULL;

3648

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

3649

basename(filename)), >, 0);

3650

g_assert_nonnull(targetfilename);

3651

3652

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

3653

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

3654

free(sourcedir);

3655

3656

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

3657

const size_t ievent_size = (sizeof(struct inotify_event)

3658

+ NAME_MAX + 1);

3659

struct inotify_event *ievent = malloc(ievent_size);

3660

g_assert_nonnull(ievent);

3661

3662

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

3663

3664

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

3665

g_assert_true(ievent->mask & IN_MOVED_TO);

3666

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

3667

3668

free(ievent);

3669

3670

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

3671

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

3672

}

3673

3674

static

3675

void test_add_inotify_dir_watch_IN_MOVED_FROM(__attribute__((unused))

3676

test_fixture *fixture,

3677

__attribute__((unused))

3678

gconstpointer

3679

user_data){

3680

__attribute__((cleanup(cleanup_close)))

3681

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3682

g_assert_cmpint(epoll_fd, >=, 0);

3683

__attribute__((cleanup(cleanup_queue)))

3684

task_queue *queue = create_queue();

3685

g_assert_nonnull(queue);

3686

__attribute__((cleanup(string_set_clear)))

3687

string_set cancelled_filenames = {};

3688

const mono_microsecs current_time = 0;

3689

3690

bool quit_now = false;

3691

buffer password = {};

3692

bool mandos_client_exited = false;

3693

bool password_is_read = false;

3694

3695

__attribute__((cleanup(cleanup_string)))

3696

char *tempdir = make_temporary_directory();

3697

g_assert_nonnull(tempdir);

3698

3699

__attribute__((cleanup(cleanup_string)))

3700

char *tempfilename = make_temporary_file_in_directory(tempdir);

3701

g_assert_nonnull(tempfilename);

3702

3703

__attribute__((cleanup(cleanup_string)))

3704

char *targetdir = make_temporary_directory();

3705

g_assert_nonnull(targetdir);

3706

3707

__attribute__((cleanup(cleanup_string)))

3708

char *targetfilename = NULL;

3709

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

3710

basename(tempfilename)), >, 0);

3711

g_assert_nonnull(targetfilename);

3712

3713

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3714

&password, tempdir,

3715

&cancelled_filenames,

3716

&current_time,

3717

&mandos_client_exited,

3718

&password_is_read));

3719

3720

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

3721

3722

const task_context *const added_read_task

3723

= find_matching_task(queue,

3724

(task_context){ .func=read_inotify_event });

3725

g_assert_nonnull(added_read_task);

3726

3727

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

3728

const size_t ievent_size = (sizeof(struct inotify_event)

3729

+ NAME_MAX + 1);

3730

struct inotify_event *ievent = malloc(ievent_size);

3731

g_assert_nonnull(ievent);

3732

3733

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

3734

3735

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

3736

g_assert_true(ievent->mask & IN_MOVED_FROM);

3737

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

3738

3739

free(ievent);

3740

3741

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

3742

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

3743

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

3744

}

3745

3746

static

3747

void test_add_inotify_dir_watch_IN_DELETE(__attribute__((unused))

3748

test_fixture *fixture,

3749

__attribute__((unused))

3750

gconstpointer user_data){

3751

__attribute__((cleanup(cleanup_close)))

3752

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3753

g_assert_cmpint(epoll_fd, >=, 0);

3754

__attribute__((cleanup(cleanup_queue)))

3755

task_queue *queue = create_queue();

3756

g_assert_nonnull(queue);

3757

__attribute__((cleanup(string_set_clear)))

3758

string_set cancelled_filenames = {};

3759

const mono_microsecs current_time = 0;

3760

3761

bool quit_now = false;

3762

buffer password = {};

3763

bool mandos_client_exited = false;

3764

bool password_is_read = false;

3765

3766

__attribute__((cleanup(cleanup_string)))

3767

char *tempdir = make_temporary_directory();

3768

g_assert_nonnull(tempdir);

3769

3770

__attribute__((cleanup(cleanup_string)))

3771

char *tempfile = make_temporary_file_in_directory(tempdir);

3772

g_assert_nonnull(tempfile);

3773

3774

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3775

&password, tempdir,

3776

&cancelled_filenames,

3777

&current_time,

3778

&mandos_client_exited,

3779

&password_is_read));

3780

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

3781

3782

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

3783

3784

const task_context *const added_read_task

3785

= find_matching_task(queue,

3786

(task_context){ .func=read_inotify_event });

3787

g_assert_nonnull(added_read_task);

3788

3789

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

3790

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3791

3792

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

3793

const size_t ievent_size = (sizeof(struct inotify_event)

3794

+ NAME_MAX + 1);

3795

struct inotify_event *ievent = malloc(ievent_size);

3796

g_assert_nonnull(ievent);

3797

3798

ssize_t read_size = 0;

3799

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

3800

3801

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

3802

g_assert_true(ievent->mask & IN_DELETE);

3803

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

3804

3805

free(ievent);

3806

3807

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

3808

}

3809

3810

static void test_read_inotify_event_readerror(__attribute__((unused))

3811

test_fixture *fixture,

3812

__attribute__((unused))

3813

gconstpointer

3814

user_data){

3815

__attribute__((cleanup(cleanup_close)))

3816

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3817

g_assert_cmpint(epoll_fd, >=, 0);

3818

const mono_microsecs current_time = 0;

3819

3820

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

3821

const int fd = open("/proc/self/mem", O_RDONLY | O_CLOEXEC);

3822

3823

bool quit_now = false;

3824

__attribute__((cleanup(cleanup_queue)))

3825

task_queue *queue = create_queue();

3826

g_assert_nonnull(queue);

3827

3828

task_context task = {

3829

.func=read_inotify_event,

3830

.epoll_fd=epoll_fd,

3831

.fd=fd,

3832

.quit_now=&quit_now,

3833

.filename=strdup("/nonexistent"),

3834

.cancelled_filenames = &(string_set){},

3835

.notafter=0,

3836

.current_time=&current_time,

3837

};

3838

g_assert_nonnull(task.filename);

3839

run_task_with_stderr_to_dev_null(task, queue);

3840

g_assert_true(quit_now);

3841

g_assert_true(queue->next_run == 0);

3842

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

3843

3844

g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));

3845

3846

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

3847

}

3848

3849

static void test_read_inotify_event_bad_epoll(__attribute__((unused))

3850

test_fixture *fixture,

3851

__attribute__((unused))

3852

gconstpointer

3853

user_data){

3854

const mono_microsecs current_time = 17;

3855

3856

int pipefds[2];

3857

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

3858

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

3859

3860

bool quit_now = false;

3861

buffer password = {};

3862

bool mandos_client_exited = false;

3863

bool password_is_read = false;

3864

__attribute__((cleanup(cleanup_queue)))

3865

task_queue *queue = create_queue();

3866

g_assert_nonnull(queue);

3867

3868

task_context task = {

3869

.func=read_inotify_event,

3870

.epoll_fd=epoll_fd,

3871

.fd=pipefds[0],

3872

.quit_now=&quit_now,

3873

.password=&password,

3874

.filename=strdup("/nonexistent"),

3875

.cancelled_filenames = &(string_set){},

3876

.notafter=0,

3877

.current_time=&current_time,

3878

.mandos_client_exited=&mandos_client_exited,

3879

.password_is_read=&password_is_read,

3880

};

3881

g_assert_nonnull(task.filename);

3882

run_task_with_stderr_to_dev_null(task, queue);

3883

3884

g_assert_nonnull(find_matching_task(queue, task));

3885

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

3886

3887

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

3888

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

3889

}

3890

3891

static void test_read_inotify_event_nodata(__attribute__((unused))

3892

test_fixture *fixture,

3893

__attribute__((unused))

3894

gconstpointer user_data){

3895

__attribute__((cleanup(cleanup_close)))

3896

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3897

g_assert_cmpint(epoll_fd, >=, 0);

3898

const mono_microsecs current_time = 0;

3899

3900

int pipefds[2];

3901

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

3902

3903

bool quit_now = false;

3904

buffer password = {};

3905

bool mandos_client_exited = false;

3906

bool password_is_read = false;

3907

__attribute__((cleanup(cleanup_queue)))

3908

task_queue *queue = create_queue();

3909

g_assert_nonnull(queue);

3910

3911

task_context task = {

3912

.func=read_inotify_event,

3913

.epoll_fd=epoll_fd,

3914

.fd=pipefds[0],

3915

.quit_now=&quit_now,

3916

.password=&password,

3917

.filename=strdup("/nonexistent"),

3918

.cancelled_filenames = &(string_set){},

3919

.notafter=0,

3920

.current_time=&current_time,

3921

.mandos_client_exited=&mandos_client_exited,

3922

.password_is_read=&password_is_read,

3923

};

3924

g_assert_nonnull(task.filename);

3925

task.func(task, queue);

3926

g_assert_false(quit_now);

3927

g_assert_true(queue->next_run == 0);

3928

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

3929

3930

g_assert_nonnull(find_matching_task(queue, (task_context){

3931

.func=read_inotify_event,

3932

.epoll_fd=epoll_fd,

3933

.fd=pipefds[0],

3934

.quit_now=&quit_now,

3935

.password=&password,

3936

.filename=task.filename,

3937

.cancelled_filenames=task.cancelled_filenames,

3938

.current_time=&current_time,

3939

.mandos_client_exited=&mandos_client_exited,

3940

.password_is_read=&password_is_read,

3941

}));

3942

3943

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3944

EPOLLIN | EPOLLRDHUP));

3945

3946

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

3947

}

3948

3949

static void test_read_inotify_event_eof(__attribute__((unused))

3950

test_fixture *fixture,

3951

__attribute__((unused))

3952

gconstpointer user_data){

3953

__attribute__((cleanup(cleanup_close)))

3954

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3955

g_assert_cmpint(epoll_fd, >=, 0);

3956

const mono_microsecs current_time = 0;

3957

3958

int pipefds[2];

3959

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

3960

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

3961

3962

bool quit_now = false;

3963

buffer password = {};

3964

__attribute__((cleanup(cleanup_queue)))

3965

task_queue *queue = create_queue();

3966

g_assert_nonnull(queue);

3967

3968

task_context task = {

3969

.func=read_inotify_event,

3970

.epoll_fd=epoll_fd,

3971

.fd=pipefds[0],

3972

.quit_now=&quit_now,

3973

.password=&password,

3974

.filename=strdup("/nonexistent"),

3975

.cancelled_filenames = &(string_set){},

3976

.notafter=0,

3977

.current_time=&current_time,

3978

};

3979

run_task_with_stderr_to_dev_null(task, queue);

3980

g_assert_true(quit_now);

3981

g_assert_true(queue->next_run == 0);

3982

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

3983

3984

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

3985

3986

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

3987

}

3988

3989

static

3990

void test_read_inotify_event_IN_CLOSE_WRITE(__attribute__((unused))

3991

test_fixture *fixture,

3992

__attribute__((unused))

3993

gconstpointer user_data){

3994

__attribute__((cleanup(cleanup_close)))

3995

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3996

g_assert_cmpint(epoll_fd, >=, 0);

3997

const mono_microsecs current_time = 0;

3998

3999

int pipefds[2];

4000

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

4001

4002

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

4003

const size_t ievent_max_size = (sizeof(struct inotify_event)

4004

+ NAME_MAX + 1);

4005

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4006

struct {

4007

struct inotify_event event;

4008

char name_buffer[NAME_MAX + 1];

4009

} ievent_buffer;

4010

struct inotify_event *const ievent = &ievent_buffer.event;

4011

4012

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

4013

ievent->mask = IN_CLOSE_WRITE;

4014

ievent->len = sizeof(dummy_file_name);

4015

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

4016

const size_t ievent_size = (sizeof(struct inotify_event)

4017

+ sizeof(dummy_file_name));

4018

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

4019

==, ievent_size);

4020

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

4021

4022

bool quit_now = false;

4023

buffer password = {};

4024

bool mandos_client_exited = false;

4025

bool password_is_read = false;

4026

__attribute__((cleanup(cleanup_queue)))

4027

task_queue *queue = create_queue();

4028

g_assert_nonnull(queue);

4029

4030

task_context task = {

4031

.func=read_inotify_event,

4032

.epoll_fd=epoll_fd,

4033

.fd=pipefds[0],

4034

.quit_now=&quit_now,

4035

.password=&password,

4036

.filename=strdup("/nonexistent"),

4037

.cancelled_filenames = &(string_set){},

4038

.notafter=0,

4039

.current_time=&current_time,

4040

.mandos_client_exited=&mandos_client_exited,

4041

.password_is_read=&password_is_read,

4042

};

4043

task.func(task, queue);

4044

g_assert_false(quit_now);

4045

g_assert_true(queue->next_run != 0);

4046

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

4047

4048

g_assert_nonnull(find_matching_task(queue, (task_context){

4049

.func=read_inotify_event,

4050

.epoll_fd=epoll_fd,

4051

.fd=pipefds[0],

4052

.quit_now=&quit_now,

4053

.password=&password,

4054

.filename=task.filename,

4055

.cancelled_filenames=task.cancelled_filenames,

4056

.current_time=&current_time,

4057

.mandos_client_exited=&mandos_client_exited,

4058

.password_is_read=&password_is_read,

4059

}));

4060

4061

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4062

EPOLLIN | EPOLLRDHUP));

4063

4064

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

4065

4066

__attribute__((cleanup(cleanup_string)))

4067

char *filename = NULL;

4068

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

4069

dummy_file_name), >, 0);

4070

g_assert_nonnull(filename);

4071

g_assert_nonnull(find_matching_task(queue, (task_context){

4072

.func=open_and_parse_question,

4073

.epoll_fd=epoll_fd,

4074

.filename=filename,

4075

.question_filename=filename,

4076

.password=&password,

4077

.cancelled_filenames=task.cancelled_filenames,

4078

.current_time=&current_time,

4079

.mandos_client_exited=&mandos_client_exited,

4080

.password_is_read=&password_is_read,

4081

}));

4082

}

4083

4084

static

4085

void test_read_inotify_event_IN_MOVED_TO(__attribute__((unused))

4086

test_fixture *fixture,

4087

__attribute__((unused))

4088

gconstpointer user_data){

4089

__attribute__((cleanup(cleanup_close)))

4090

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4091

g_assert_cmpint(epoll_fd, >=, 0);

4092

const mono_microsecs current_time = 0;

4093

4094

int pipefds[2];

4095

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

4096

4097

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

4098

const size_t ievent_max_size = (sizeof(struct inotify_event)

4099

+ NAME_MAX + 1);

4100

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4101

struct {

4102

struct inotify_event event;

4103

char name_buffer[NAME_MAX + 1];

4104

} ievent_buffer;

4105

struct inotify_event *const ievent = &ievent_buffer.event;

4106

4107

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

4108

ievent->mask = IN_MOVED_TO;

4109

ievent->len = sizeof(dummy_file_name);

4110

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

4111

const size_t ievent_size = (sizeof(struct inotify_event)

4112

+ sizeof(dummy_file_name));

4113

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

4114

==, ievent_size);

4115

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

4116

4117

bool quit_now = false;

4118

buffer password = {};

4119

bool mandos_client_exited = false;

4120

bool password_is_read = false;

4121

__attribute__((cleanup(cleanup_queue)))

4122

task_queue *queue = create_queue();

4123

g_assert_nonnull(queue);

4124

4125

task_context task = {

4126

.func=read_inotify_event,

4127

.epoll_fd=epoll_fd,

4128

.fd=pipefds[0],

4129

.quit_now=&quit_now,

4130

.password=&password,

4131

.filename=strdup("/nonexistent"),

4132

.cancelled_filenames = &(string_set){},

4133

.notafter=0,

4134

.current_time=&current_time,

4135

.mandos_client_exited=&mandos_client_exited,

4136

.password_is_read=&password_is_read,

4137

};

4138

task.func(task, queue);

4139

g_assert_false(quit_now);

4140

g_assert_true(queue->next_run != 0);

4141

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

4142

4143

g_assert_nonnull(find_matching_task(queue, (task_context){

4144

.func=read_inotify_event,

4145

.epoll_fd=epoll_fd,

4146

.fd=pipefds[0],

4147

.quit_now=&quit_now,

4148

.password=&password,

4149

.filename=task.filename,

4150

.cancelled_filenames=task.cancelled_filenames,

4151

.current_time=&current_time,

4152

.mandos_client_exited=&mandos_client_exited,

4153

.password_is_read=&password_is_read,

4154

}));

4155

4156

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4157

EPOLLIN | EPOLLRDHUP));

4158

4159

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

4160

4161

__attribute__((cleanup(cleanup_string)))

4162

char *filename = NULL;

4163

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

4164

dummy_file_name), >, 0);

4165

g_assert_nonnull(filename);

4166

g_assert_nonnull(find_matching_task(queue, (task_context){

4167

.func=open_and_parse_question,

4168

.epoll_fd=epoll_fd,

4169

.filename=filename,

4170

.question_filename=filename,

4171

.password=&password,

4172

.cancelled_filenames=task.cancelled_filenames,

4173

.current_time=&current_time,

4174

.mandos_client_exited=&mandos_client_exited,

4175

.password_is_read=&password_is_read,

4176

}));

4177

}

4178

4179

static

4180

void test_read_inotify_event_IN_MOVED_FROM(__attribute__((unused))

4181

test_fixture *fixture,

4182

__attribute__((unused))

4183

gconstpointer user_data){

4184

__attribute__((cleanup(cleanup_close)))

4185

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4186

g_assert_cmpint(epoll_fd, >=, 0);

4187

__attribute__((cleanup(string_set_clear)))

4188

string_set cancelled_filenames = {};

4189

const mono_microsecs current_time = 0;

4190

4191

int pipefds[2];

4192

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

4193

4194

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

4195

const size_t ievent_max_size = (sizeof(struct inotify_event)

4196

+ NAME_MAX + 1);

4197

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4198

struct {

4199

struct inotify_event event;

4200

char name_buffer[NAME_MAX + 1];

4201

} ievent_buffer;

4202

struct inotify_event *const ievent = &ievent_buffer.event;

4203

4204

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

4205

ievent->mask = IN_MOVED_FROM;

4206

ievent->len = sizeof(dummy_file_name);

4207

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

4208

const size_t ievent_size = (sizeof(struct inotify_event)

4209

+ sizeof(dummy_file_name));

4210

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

4211

==, ievent_size);

4212

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

4213

4214

bool quit_now = false;

4215

buffer password = {};

4216

bool mandos_client_exited = false;

4217

bool password_is_read = false;

4218

__attribute__((cleanup(cleanup_queue)))

4219

task_queue *queue = create_queue();

4220

g_assert_nonnull(queue);

4221

4222

task_context task = {

4223

.func=read_inotify_event,

4224

.epoll_fd=epoll_fd,

4225

.fd=pipefds[0],

4226

.quit_now=&quit_now,

4227

.password=&password,

4228

.filename=strdup("/nonexistent"),

4229

.cancelled_filenames=&cancelled_filenames,

4230

.current_time=&current_time,

4231

.mandos_client_exited=&mandos_client_exited,

4232

.password_is_read=&password_is_read,

4233

};

4234

task.func(task, queue);

4235

g_assert_false(quit_now);

4236

g_assert_true(queue->next_run == 0);

4237

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

4238

4239

g_assert_nonnull(find_matching_task(queue, (task_context){

4240

.func=read_inotify_event,

4241

.epoll_fd=epoll_fd,

4242

.fd=pipefds[0],

4243

.quit_now=&quit_now,

4244

.password=&password,

4245

.filename=task.filename,

4246

.cancelled_filenames=&cancelled_filenames,

4247

.current_time=&current_time,

4248

.mandos_client_exited=&mandos_client_exited,

4249

.password_is_read=&password_is_read,

4250

}));

4251

4252

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4253

EPOLLIN | EPOLLRDHUP));

4254

4255

__attribute__((cleanup(cleanup_string)))

4256

char *filename = NULL;

4257

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

4258

dummy_file_name), >, 0);

4259

g_assert_nonnull(filename);

4260

g_assert_true(string_set_contains(*task.cancelled_filenames,

4261

filename));

4262

}

4263

4264

static void test_read_inotify_event_IN_DELETE(__attribute__((unused))

4265

test_fixture *fixture,

4266

__attribute__((unused))

4267

gconstpointer

4268

user_data){

4269

__attribute__((cleanup(cleanup_close)))

4270

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4271

g_assert_cmpint(epoll_fd, >=, 0);

4272

__attribute__((cleanup(string_set_clear)))

4273

string_set cancelled_filenames = {};

4274

const mono_microsecs current_time = 0;

4275

4276

int pipefds[2];

4277

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

4278

4279

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

4280

const size_t ievent_max_size = (sizeof(struct inotify_event)

4281

+ NAME_MAX + 1);

4282

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4283

struct {

4284

struct inotify_event event;

4285

char name_buffer[NAME_MAX + 1];

4286

} ievent_buffer;

4287

struct inotify_event *const ievent = &ievent_buffer.event;

4288

4289

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

4290

ievent->mask = IN_DELETE;

4291

ievent->len = sizeof(dummy_file_name);

4292

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

4293

const size_t ievent_size = (sizeof(struct inotify_event)

4294

+ sizeof(dummy_file_name));

4295

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

4296

==, ievent_size);

4297

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

4298

4299

bool quit_now = false;

4300

buffer password = {};

4301

bool mandos_client_exited = false;

4302

bool password_is_read = false;

4303

__attribute__((cleanup(cleanup_queue)))

4304

task_queue *queue = create_queue();

4305

g_assert_nonnull(queue);

4306

4307

task_context task = {

4308

.func=read_inotify_event,

4309

.epoll_fd=epoll_fd,

4310

.fd=pipefds[0],

4311

.quit_now=&quit_now,

4312

.password=&password,

4313

.filename=strdup("/nonexistent"),

4314

.cancelled_filenames=&cancelled_filenames,

4315

.current_time=&current_time,

4316

.mandos_client_exited=&mandos_client_exited,

4317

.password_is_read=&password_is_read,

4318

};

4319

task.func(task, queue);

4320

g_assert_false(quit_now);

4321

g_assert_true(queue->next_run == 0);

4322

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

4323

4324

g_assert_nonnull(find_matching_task(queue, (task_context){

4325

.func=read_inotify_event,

4326

.epoll_fd=epoll_fd,

4327

.fd=pipefds[0],

4328

.quit_now=&quit_now,

4329

.password=&password,

4330

.filename=task.filename,

4331

.cancelled_filenames=&cancelled_filenames,

4332

.current_time=&current_time,

4333

.mandos_client_exited=&mandos_client_exited,

4334

.password_is_read=&password_is_read,

4335

}));

4336

4337

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4338

EPOLLIN | EPOLLRDHUP));

4339

4340

__attribute__((cleanup(cleanup_string)))

4341

char *filename = NULL;

4342

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

4343

dummy_file_name), >, 0);

4344

g_assert_nonnull(filename);

4345

g_assert_true(string_set_contains(*task.cancelled_filenames,

4346

filename));

4347

}

4348

4349

static void

4350

test_read_inotify_event_IN_CLOSE_WRITE_badname(__attribute__((unused))

4351

test_fixture *fixture,

4352

__attribute__((unused))

4353

gconstpointer

4354

user_data){

4355

__attribute__((cleanup(cleanup_close)))

4356

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4357

g_assert_cmpint(epoll_fd, >=, 0);

4358

const mono_microsecs current_time = 0;

4359

4360

int pipefds[2];

4361

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

4362

4363

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

4364

const size_t ievent_max_size = (sizeof(struct inotify_event)

4365

+ NAME_MAX + 1);

4366

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4367

struct {

4368

struct inotify_event event;

4369

char name_buffer[NAME_MAX + 1];

4370

} ievent_buffer;

4371

struct inotify_event *const ievent = &ievent_buffer.event;

4372

4373

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

4374

ievent->mask = IN_CLOSE_WRITE;

4375

ievent->len = sizeof(dummy_file_name);

4376

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

4377

const size_t ievent_size = (sizeof(struct inotify_event)

4378

+ sizeof(dummy_file_name));

4379

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

4380

==, ievent_size);

4381

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

4382

4383

bool quit_now = false;

4384

buffer password = {};

4385

bool mandos_client_exited = false;

4386

bool password_is_read = false;

4387

__attribute__((cleanup(cleanup_queue)))

4388

task_queue *queue = create_queue();

4389

g_assert_nonnull(queue);

4390

4391

task_context task = {

4392

.func=read_inotify_event,

4393

.epoll_fd=epoll_fd,

4394

.fd=pipefds[0],

4395

.quit_now=&quit_now,

4396

.password=&password,

4397

.filename=strdup("/nonexistent"),

4398

.cancelled_filenames = &(string_set){},

4399

.notafter=0,

4400

.current_time=&current_time,

4401

.mandos_client_exited=&mandos_client_exited,

4402

.password_is_read=&password_is_read,

4403

};

4404

task.func(task, queue);

4405

g_assert_false(quit_now);

4406

g_assert_true(queue->next_run == 0);

4407

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

4408

4409

g_assert_nonnull(find_matching_task(queue, (task_context){

4410

.func=read_inotify_event,

4411

.epoll_fd=epoll_fd,

4412

.fd=pipefds[0],

4413

.quit_now=&quit_now,

4414

.password=&password,

4415

.filename=task.filename,

4416

.cancelled_filenames=task.cancelled_filenames,

4417

.current_time=&current_time,

4418

.mandos_client_exited=&mandos_client_exited,

4419

.password_is_read=&password_is_read,

4420

}));

4421

4422

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4423

EPOLLIN | EPOLLRDHUP));

4424

}

4425

4426

static void

4427

test_read_inotify_event_IN_MOVED_TO_badname(__attribute__((unused))

4428

test_fixture *fixture,

4429

__attribute__((unused))

4430

gconstpointer user_data){

4431

__attribute__((cleanup(cleanup_close)))

4432

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4433

g_assert_cmpint(epoll_fd, >=, 0);

4434

const mono_microsecs current_time = 0;

4435

4436

int pipefds[2];

4437

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

4438

4439

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

4440

const size_t ievent_max_size = (sizeof(struct inotify_event)

4441

+ NAME_MAX + 1);

4442

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4443

struct {

4444

struct inotify_event event;

4445

char name_buffer[NAME_MAX + 1];

4446

} ievent_buffer;

4447

struct inotify_event *const ievent = &ievent_buffer.event;

4448

4449

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

4450

ievent->mask = IN_MOVED_TO;

4451

ievent->len = sizeof(dummy_file_name);

4452

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

4453

const size_t ievent_size = (sizeof(struct inotify_event)

4454

+ sizeof(dummy_file_name));

4455

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

4456

==, ievent_size);

4457

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

4458

4459

bool quit_now = false;

4460

buffer password = {};

4461

bool mandos_client_exited = false;

4462

bool password_is_read = false;

4463

__attribute__((cleanup(cleanup_queue)))

4464

task_queue *queue = create_queue();

4465

g_assert_nonnull(queue);

4466

4467

task_context task = {

4468

.func=read_inotify_event,

4469

.epoll_fd=epoll_fd,

4470

.fd=pipefds[0],

4471

.quit_now=&quit_now,

4472

.password=&password,

4473

.filename=strdup("/nonexistent"),

4474

.cancelled_filenames = &(string_set){},

4475

.notafter=0,

4476

.current_time=&current_time,

4477

.mandos_client_exited=&mandos_client_exited,

4478

.password_is_read=&password_is_read,

4479

};

4480

task.func(task, queue);

4481

g_assert_false(quit_now);

4482

g_assert_true(queue->next_run == 0);

4483

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

4484

4485

g_assert_nonnull(find_matching_task(queue, (task_context){

4486

.func=read_inotify_event,

4487

.epoll_fd=epoll_fd,

4488

.fd=pipefds[0],

4489

.quit_now=&quit_now,

4490

.password=&password,

4491

.filename=task.filename,

4492

.cancelled_filenames=task.cancelled_filenames,

4493

.current_time=&current_time,

4494

.mandos_client_exited=&mandos_client_exited,

4495

.password_is_read=&password_is_read,

4496

}));

4497

4498

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4499

EPOLLIN | EPOLLRDHUP));

4500

}

4501

4502

static void

4503

test_read_inotify_event_IN_MOVED_FROM_badname(__attribute__((unused))

4504

test_fixture *fixture,

4505

__attribute__((unused))

4506

gconstpointer

4507

user_data){

4508

__attribute__((cleanup(cleanup_close)))

4509

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4510

g_assert_cmpint(epoll_fd, >=, 0);

4511

__attribute__((cleanup(string_set_clear)))

4512

string_set cancelled_filenames = {};

4513

const mono_microsecs current_time = 0;

4514

4515

int pipefds[2];

4516

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

4517

4518

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

4519

const size_t ievent_max_size = (sizeof(struct inotify_event)

4520

+ NAME_MAX + 1);

4521

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4522

struct {

4523

struct inotify_event event;

4524

char name_buffer[NAME_MAX + 1];

4525

} ievent_buffer;

4526

struct inotify_event *const ievent = &ievent_buffer.event;

4527

4528

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

4529

ievent->mask = IN_MOVED_FROM;

4530

ievent->len = sizeof(dummy_file_name);

4531

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

4532

const size_t ievent_size = (sizeof(struct inotify_event)

4533

+ sizeof(dummy_file_name));

4534

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

4535

==, ievent_size);

4536

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

4537

4538

bool quit_now = false;

4539

buffer password = {};

4540

bool mandos_client_exited = false;

4541

bool password_is_read = false;

4542

__attribute__((cleanup(cleanup_queue)))

4543

task_queue *queue = create_queue();

4544

g_assert_nonnull(queue);

4545

4546

task_context task = {

4547

.func=read_inotify_event,

4548

.epoll_fd=epoll_fd,

4549

.fd=pipefds[0],

4550

.quit_now=&quit_now,

4551

.password=&password,

4552

.filename=strdup("/nonexistent"),

4553

.cancelled_filenames=&cancelled_filenames,

4554

.current_time=&current_time,

4555

.mandos_client_exited=&mandos_client_exited,

4556

.password_is_read=&password_is_read,

4557

};

4558

task.func(task, queue);

4559

g_assert_false(quit_now);

4560

g_assert_true(queue->next_run == 0);

4561

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

4562

4563

g_assert_nonnull(find_matching_task(queue, (task_context){

4564

.func=read_inotify_event,

4565

.epoll_fd=epoll_fd,

4566

.fd=pipefds[0],

4567

.quit_now=&quit_now,

4568

.password=&password,

4569

.filename=task.filename,

4570

.cancelled_filenames=&cancelled_filenames,

4571

.current_time=&current_time,

4572

.mandos_client_exited=&mandos_client_exited,

4573

.password_is_read=&password_is_read,

4574

}));

4575

4576

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4577

EPOLLIN | EPOLLRDHUP));

4578

4579

__attribute__((cleanup(cleanup_string)))

4580

char *filename = NULL;

4581

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

4582

dummy_file_name), >, 0);

4583

g_assert_nonnull(filename);

4584

g_assert_false(string_set_contains(cancelled_filenames, filename));

4585

}

4586

4587

static

4588

void test_read_inotify_event_IN_DELETE_badname(__attribute__((unused))

4589

test_fixture *fixture,

4590

__attribute__((unused))

4591

gconstpointer

4592

user_data){

4593

__attribute__((cleanup(cleanup_close)))

4594

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4595

g_assert_cmpint(epoll_fd, >=, 0);

4596

__attribute__((cleanup(string_set_clear)))

4597

string_set cancelled_filenames = {};

4598

const mono_microsecs current_time = 0;

4599

4600

int pipefds[2];

4601

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

4602

4603

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

4604

const size_t ievent_max_size = (sizeof(struct inotify_event)

4605

+ NAME_MAX + 1);

4606

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4607

struct {

4608

struct inotify_event event;

4609

char name_buffer[NAME_MAX + 1];

4610

} ievent_buffer;

4611

struct inotify_event *const ievent = &ievent_buffer.event;

4612

4613

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

4614

ievent->mask = IN_DELETE;

4615

ievent->len = sizeof(dummy_file_name);

4616

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

4617

const size_t ievent_size = (sizeof(struct inotify_event)

4618

+ sizeof(dummy_file_name));

4619

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

4620

==, ievent_size);

4621

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

4622

4623

bool quit_now = false;

4624

buffer password = {};

4625

bool mandos_client_exited = false;

4626

bool password_is_read = false;

4627

__attribute__((cleanup(cleanup_queue)))

4628

task_queue *queue = create_queue();

4629

g_assert_nonnull(queue);

4630

4631

task_context task = {

4632

.func=read_inotify_event,

4633

.epoll_fd=epoll_fd,

4634

.fd=pipefds[0],

4635

.quit_now=&quit_now,

4636

.password=&password,

4637

.filename=strdup("/nonexistent"),

4638

.cancelled_filenames=&cancelled_filenames,

4639

.current_time=&current_time,

4640

.mandos_client_exited=&mandos_client_exited,

4641

.password_is_read=&password_is_read,

4642

};

4643

task.func(task, queue);

4644

g_assert_false(quit_now);

4645

g_assert_true(queue->next_run == 0);

4646

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

4647

4648

g_assert_nonnull(find_matching_task(queue, (task_context){

4649

.func=read_inotify_event,

4650

.epoll_fd=epoll_fd,

4651

.fd=pipefds[0],

4652

.quit_now=&quit_now,

4653

.password=&password,

4654

.filename=task.filename,

4655

.cancelled_filenames=&cancelled_filenames,

4656

.current_time=&current_time,

4657

.mandos_client_exited=&mandos_client_exited,

4658

.password_is_read=&password_is_read,

4659

}));

4660

4661

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4662

EPOLLIN | EPOLLRDHUP));

4663

4664

__attribute__((cleanup(cleanup_string)))

4665

char *filename = NULL;

4666

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

4667

dummy_file_name), >, 0);

4668

g_assert_nonnull(filename);

4669

g_assert_false(string_set_contains(cancelled_filenames, filename));

4670

}

4671

4672

static

4673

void test_open_and_parse_question_ENOENT(__attribute__((unused))

4674

test_fixture *fixture,

4675

__attribute__((unused))

4676

gconstpointer user_data){

4677

__attribute__((cleanup(cleanup_close)))

4678

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4679

g_assert_cmpint(epoll_fd, >=, 0);

4680

__attribute__((cleanup(string_set_clear)))

4681

string_set cancelled_filenames = {};

4682

bool mandos_client_exited = false;

4683

bool password_is_read = false;

4684

__attribute__((cleanup(cleanup_queue)))

4685

task_queue *queue = create_queue();

4686

g_assert_nonnull(queue);

4687

4688

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

4689

g_assert_nonnull(filename);

4690

task_context task = {

4691

.func=open_and_parse_question,

4692

.question_filename=filename,

4693

.epoll_fd=epoll_fd,

4694

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

4695

.filename=filename,

4696

.cancelled_filenames=&cancelled_filenames,

4697

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

4698

.mandos_client_exited=&mandos_client_exited,

4699

.password_is_read=&password_is_read,

4700

};

4701

task.func(task, queue);

4702

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

4703

}

4704

4705

static void test_open_and_parse_question_EIO(__attribute__((unused))

4706

test_fixture *fixture,

4707

__attribute__((unused))

4708

gconstpointer user_data){

4709

__attribute__((cleanup(cleanup_close)))

4710

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4711

g_assert_cmpint(epoll_fd, >=, 0);

4712

__attribute__((cleanup(string_set_clear)))

4713

string_set cancelled_filenames = {};

4714

buffer password = {};

4715

bool mandos_client_exited = false;

4716

bool password_is_read = false;

4717

__attribute__((cleanup(cleanup_queue)))

4718

task_queue *queue = create_queue();

4719

g_assert_nonnull(queue);

4720

const mono_microsecs current_time = 0;

4721

4722

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

4723

task_context task = {

4724

.func=open_and_parse_question,

4725

.question_filename=filename,

4726

.epoll_fd=epoll_fd,

4727

.password=&password,

4728

.filename=filename,

4729

.cancelled_filenames=&cancelled_filenames,

4730

.current_time=&current_time,

4731

.mandos_client_exited=&mandos_client_exited,

4732

.password_is_read=&password_is_read,

4733

};

4734

run_task_with_stderr_to_dev_null(task, queue);

4735

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

4736

}

4737

4738

static void

4739

test_open_and_parse_question_parse_error(__attribute__((unused))

4740

test_fixture *fixture,

4741

__attribute__((unused))

4742

gconstpointer user_data){

4743

__attribute__((cleanup(cleanup_close)))

4744

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4745

g_assert_cmpint(epoll_fd, >=, 0);

4746

__attribute__((cleanup(string_set_clear)))

4747

string_set cancelled_filenames = {};

4748

__attribute__((cleanup(cleanup_queue)))

4749

task_queue *queue = create_queue();

4750

g_assert_nonnull(queue);

4751

4752

__attribute__((cleanup(cleanup_string)))

4753

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

4754

g_assert_nonnull(tempfilename);

4755

int tempfile = mkostemp(tempfilename, O_CLOEXEC);

4756

g_assert_cmpint(tempfile, >, 0);

4757

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

4758

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

4759

==, sizeof(bad_data));

4760

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

4761

4762

char *const filename = strdup(tempfilename);

4763

g_assert_nonnull(filename);

4764

task_context task = {

4765

.func=open_and_parse_question,

4766

.question_filename=filename,

4767

.epoll_fd=epoll_fd,

4768

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

4769

.filename=filename,

4770

.cancelled_filenames=&cancelled_filenames,

4771

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

4772

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

4773

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

4774

};

4775

run_task_with_stderr_to_dev_null(task, queue);

4776

4777

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

4778

4779

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

4780

}

4781

4782

static

4783

void test_open_and_parse_question_nosocket(__attribute__((unused))

4784

test_fixture *fixture,

4785

__attribute__((unused))

4786

gconstpointer user_data){

4787

__attribute__((cleanup(cleanup_close)))

4788

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4789

g_assert_cmpint(epoll_fd, >=, 0);

4790

__attribute__((cleanup(string_set_clear)))

4791

string_set cancelled_filenames = {};

4792

__attribute__((cleanup(cleanup_queue)))

4793

task_queue *queue = create_queue();

4794

g_assert_nonnull(queue);

4795

4796

__attribute__((cleanup(cleanup_string)))

4797

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

4798

g_assert_nonnull(tempfilename);

4799

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

4800

g_assert_cmpint(questionfile, >, 0);

4801

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

4802

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

4803

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

4804

4805

char *const filename = strdup(tempfilename);

4806

g_assert_nonnull(filename);

4807

task_context task = {

4808

.func=open_and_parse_question,

4809

.question_filename=filename,

4810

.epoll_fd=epoll_fd,

4811

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

4812

.filename=filename,

4813

.cancelled_filenames=&cancelled_filenames,

4814

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

4815

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

4816

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

4817

};

4818

run_task_with_stderr_to_dev_null(task, queue);

4819

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

4820

4821

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

4822

}

4823

4824

static

4825

void test_open_and_parse_question_badsocket(__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

__attribute__((cleanup(cleanup_queue)))

4835

task_queue *queue = create_queue();

4836

g_assert_nonnull(queue);

4837

4838

__attribute__((cleanup(cleanup_string)))

4839

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

4840

g_assert_nonnull(tempfilename);

4841

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

4842

g_assert_cmpint(questionfile, >, 0);

4843

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

4844

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

4845

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

4846

4847

char *const filename = strdup(tempfilename);

4848

g_assert_nonnull(filename);

4849

task_context task = {

4850

.func=open_and_parse_question,

4851

.question_filename=filename,

4852

.epoll_fd=epoll_fd,

4853

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

4854

.filename=filename,

4855

.cancelled_filenames=&cancelled_filenames,

4856

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

4857

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

4858

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

4859

};

4860

run_task_with_stderr_to_dev_null(task, queue);

4861

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

4862

4863

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

4864

}

4865

4866

static

4867

void test_open_and_parse_question_nopid(__attribute__((unused))

4868

test_fixture *fixture,

4869

__attribute__((unused))

4870

gconstpointer user_data){

4871

__attribute__((cleanup(cleanup_close)))

4872

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4873

g_assert_cmpint(epoll_fd, >=, 0);

4874

__attribute__((cleanup(string_set_clear)))

4875

string_set cancelled_filenames = {};

4876

__attribute__((cleanup(cleanup_queue)))

4877

task_queue *queue = create_queue();

4878

g_assert_nonnull(queue);

4879

4880

__attribute__((cleanup(cleanup_string)))

4881

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

4882

g_assert_nonnull(tempfilename);

4883

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

4884

g_assert_cmpint(questionfile, >, 0);

4885

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

4886

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

4887

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

4888

4889

char *const filename = strdup(tempfilename);

4890

g_assert_nonnull(filename);

4891

task_context task = {

4892

.func=open_and_parse_question,

4893

.question_filename=filename,

4894

.epoll_fd=epoll_fd,

4895

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

4896

.filename=filename,

4897

.cancelled_filenames=&cancelled_filenames,

4898

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

4899

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

4900

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

4901

};

4902

run_task_with_stderr_to_dev_null(task, queue);

4903

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

4904

4905

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

4906

}

4907

4908

static

4909

void test_open_and_parse_question_badpid(__attribute__((unused))

4910

test_fixture *fixture,

4911

__attribute__((unused))

4912

gconstpointer user_data){

4913

__attribute__((cleanup(cleanup_close)))

4914

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4915

g_assert_cmpint(epoll_fd, >=, 0);

4916

__attribute__((cleanup(string_set_clear)))

4917

string_set cancelled_filenames = {};

4918

__attribute__((cleanup(cleanup_queue)))

4919

task_queue *queue = create_queue();

4920

g_assert_nonnull(queue);

4921

4922

__attribute__((cleanup(cleanup_string)))

4923

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

4924

g_assert_nonnull(tempfilename);

4925

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

4926

g_assert_cmpint(questionfile, >, 0);

4927

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

4928

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

4929

>, 0);

4930

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

4931

4932

char *const filename = strdup(tempfilename);

4933

g_assert_nonnull(filename);

4934

task_context task = {

4935

.func=open_and_parse_question,

4936

.question_filename=filename,

4937

.epoll_fd=epoll_fd,

4938

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

4939

.filename=filename,

4940

.cancelled_filenames=&cancelled_filenames,

4941

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

4942

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

4943

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

4944

};

4945

run_task_with_stderr_to_dev_null(task, queue);

4946

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

4947

4948

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

4949

}

4950

4951

static void

4952

test_open_and_parse_question_noexist_pid(__attribute__((unused))

4953

test_fixture *fixture,

4954

__attribute__((unused))

4955

gconstpointer user_data){

4956

__attribute__((cleanup(cleanup_close)))

4957

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4958

g_assert_cmpint(epoll_fd, >=, 0);

4959

__attribute__((cleanup(string_set_clear)))

4960

string_set cancelled_filenames = {};

4961

buffer password = {};

4962

bool mandos_client_exited = false;

4963

bool password_is_read = false;

4964

__attribute__((cleanup(cleanup_queue)))

4965

task_queue *queue = create_queue();

4966

g_assert_nonnull(queue);

4967

const mono_microsecs current_time = 0;

4968

4969

/* Find value of sysctl kernel.pid_max */

4970

uintmax_t pid_max = 0;

4971

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

4972

g_assert_nonnull(sysctl_pid_max);

4973

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

4974

==, 1);

4975

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

4976

4977

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

4978

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

4979

4980

__attribute__((cleanup(cleanup_string)))

4981

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

4982

g_assert_nonnull(tempfilename);

4983

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

4984

g_assert_cmpint(questionfile, >, 0);

4985

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

4986

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

4987

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

4988

>, 0);

4989

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

4990

4991

char *const question_filename = strdup(tempfilename);

4992

g_assert_nonnull(question_filename);

4993

task_context task = {

4994

.func=open_and_parse_question,

4995

.question_filename=question_filename,

4996

.epoll_fd=epoll_fd,

4997

.password=&password,

4998

.filename=question_filename,

4999

.cancelled_filenames=&cancelled_filenames,

5000

.current_time=&current_time,

5001

.mandos_client_exited=&mandos_client_exited,

5002

.password_is_read=&password_is_read,

5003

};

5004

run_task_with_stderr_to_dev_null(task, queue);

5005

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

5006

5007

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

5008

}

5009

5010

static void

5011

test_open_and_parse_question_no_notafter(__attribute__((unused))

5012

test_fixture *fixture,

5013

__attribute__((unused))

5014

gconstpointer user_data){

5015

__attribute__((cleanup(cleanup_close)))

5016

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5017

g_assert_cmpint(epoll_fd, >=, 0);

5018

__attribute__((cleanup(string_set_clear)))

5019

string_set cancelled_filenames = {};

5020

buffer password = {};

5021

bool mandos_client_exited = false;

5022

bool password_is_read = false;

5023

__attribute__((cleanup(cleanup_queue)))

5024

task_queue *queue = create_queue();

5025

g_assert_nonnull(queue);

5026

const mono_microsecs current_time = 0;

5027

5028

__attribute__((cleanup(cleanup_string)))

5029

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

5030

g_assert_nonnull(tempfilename);

5031

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5032

g_assert_cmpint(questionfile, >, 0);

5033

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

5034

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

5035

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

5036

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

5037

5038

char *const filename = strdup(tempfilename);

5039

g_assert_nonnull(filename);

5040

task_context task = {

5041

.func=open_and_parse_question,

5042

.question_filename=filename,

5043

.epoll_fd=epoll_fd,

5044

.password=&password,

5045

.filename=filename,

5046

.cancelled_filenames=&cancelled_filenames,

5047

.current_time=&current_time,

5048

.mandos_client_exited=&mandos_client_exited,

5049

.password_is_read=&password_is_read,

5050

};

5051

task.func(task, queue);

5052

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

5053

5054

__attribute__((cleanup(cleanup_string)))

5055

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

5056

g_assert_nonnull(socket_filename);

5057

g_assert_nonnull(find_matching_task(queue, (task_context){

5058

.func=connect_question_socket,

5059

.question_filename=tempfilename,

5060

.filename=socket_filename,

5061

.epoll_fd=epoll_fd,

5062

.password=&password,

5063

.current_time=&current_time,

5064

.mandos_client_exited=&mandos_client_exited,

5065

.password_is_read=&password_is_read,

5066

}));

5067

5068

g_assert_true(queue->next_run != 0);

5069

5070

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

5071

}

5072

5073

static void

5074

test_open_and_parse_question_bad_notafter(__attribute__((unused))

5075

test_fixture *fixture,

5076

__attribute__((unused))

5077

gconstpointer user_data){

5078

__attribute__((cleanup(cleanup_close)))

5079

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5080

g_assert_cmpint(epoll_fd, >=, 0);

5081

__attribute__((cleanup(string_set_clear)))

5082

string_set cancelled_filenames = {};

5083

buffer password = {};

5084

bool mandos_client_exited = false;

5085

bool password_is_read = false;

5086

__attribute__((cleanup(cleanup_queue)))

5087

task_queue *queue = create_queue();

5088

g_assert_nonnull(queue);

5089

const mono_microsecs current_time = 0;

5090

5091

__attribute__((cleanup(cleanup_string)))

5092

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

5093

g_assert_nonnull(tempfilename);

5094

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5095

g_assert_cmpint(questionfile, >, 0);

5096

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

5097

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

5098

PRIuMAX "\nNotAfter=\n",

5099

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

5100

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

5101

5102

char *const filename = strdup(tempfilename);

5103

g_assert_nonnull(filename);

5104

task_context task = {

5105

.func=open_and_parse_question,

5106

.question_filename=filename,

5107

.epoll_fd=epoll_fd,

5108

.password=&password,

5109

.filename=filename,

5110

.cancelled_filenames=&cancelled_filenames,

5111

.current_time=&current_time,

5112

.mandos_client_exited=&mandos_client_exited,

5113

.password_is_read=&password_is_read,

5114

};

5115

run_task_with_stderr_to_dev_null(task, queue);

5116

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

5117

5118

__attribute__((cleanup(cleanup_string)))

5119

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

5120

g_assert_nonnull(find_matching_task(queue, (task_context){

5121

.func=connect_question_socket,

5122

.question_filename=tempfilename,

5123

.filename=socket_filename,

5124

.epoll_fd=epoll_fd,

5125

.password=&password,

5126

.current_time=&current_time,

5127

.mandos_client_exited=&mandos_client_exited,

5128

.password_is_read=&password_is_read,

5129

}));

5130

g_assert_true(queue->next_run != 0);

5131

5132

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

5133

}

5134

5135

static

5136

void assert_open_and_parse_question_with_notafter(const mono_microsecs

5137

current_time,

5138

const mono_microsecs

5139

notafter,

5140

const mono_microsecs

5141

next_queue_run){

5142

__attribute__((cleanup(cleanup_close)))

5143

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5144

g_assert_cmpint(epoll_fd, >=, 0);

5145

__attribute__((cleanup(string_set_clear)))

5146

string_set cancelled_filenames = {};

5147

buffer password = {};

5148

bool mandos_client_exited = false;

5149

bool password_is_read = false;

5150

__attribute__((cleanup(cleanup_queue)))

5151

task_queue *queue = create_queue();

5152

g_assert_nonnull(queue);

5153

queue->next_run = next_queue_run;

5154

5155

__attribute__((cleanup(cleanup_string)))

5156

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

5157

g_assert_nonnull(tempfilename);

5158

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5159

g_assert_cmpint(questionfile, >, 0);

5160

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

5161

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

5162

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

5163

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

5164

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

5165

5166

char *const filename = strdup(tempfilename);

5167

g_assert_nonnull(filename);

5168

task_context task = {

5169

.func=open_and_parse_question,

5170

.question_filename=filename,

5171

.epoll_fd=epoll_fd,

5172

.password=&password,

5173

.filename=filename,

5174

.cancelled_filenames=&cancelled_filenames,

5175

.current_time=&current_time,

5176

.mandos_client_exited=&mandos_client_exited,

5177

.password_is_read=&password_is_read,

5178

};

5179

task.func(task, queue);

5180

5181

if(queue->length >= 1){

5182

__attribute__((cleanup(cleanup_string)))

5183

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

5184

g_assert_nonnull(find_matching_task(queue, (task_context){

5185

.func=connect_question_socket,

5186

.filename=socket_filename,

5187

.epoll_fd=epoll_fd,

5188

.password=&password,

5189

.current_time=&current_time,

5190

.cancelled_filenames=&cancelled_filenames,

5191

.mandos_client_exited=&mandos_client_exited,

5192

.password_is_read=&password_is_read,

5193

}));

5194

g_assert_true(queue->next_run != 0);

5195

}

5196

5197

if(notafter == 0){

5198

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

5199

} else if(current_time >= notafter) {

5200

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

5201

} else {

5202

g_assert_nonnull(find_matching_task(queue, (task_context){

5203

.func=cancel_old_question,

5204

.question_filename=tempfilename,

5205

.filename=tempfilename,

5206

.notafter=notafter,

5207

.cancelled_filenames=&cancelled_filenames,

5208

.current_time=&current_time,

5209

}));

5210

}

5211

g_assert_true(queue->next_run == 1);

5212

5213

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

5214

}

5215

5216

static void

5217

test_open_and_parse_question_notafter_0(__attribute__((unused))

5218

test_fixture *fixture,

5219

__attribute__((unused))

5220

gconstpointer user_data){

5221

/* current_time, notafter, next_queue_run */

5222

assert_open_and_parse_question_with_notafter(0, 0, 0);

5223

}

5224

5225

static void

5226

test_open_and_parse_question_notafter_1(__attribute__((unused))

5227

test_fixture *fixture,

5228

__attribute__((unused))

5229

gconstpointer user_data){

5230

/* current_time, notafter, next_queue_run */

5231

assert_open_and_parse_question_with_notafter(0, 1, 0);

5232

}

5233

5234

static void

5235

test_open_and_parse_question_notafter_1_1(__attribute__((unused))

5236

test_fixture *fixture,

5237

__attribute__((unused))

5238

gconstpointer user_data){

5239

/* current_time, notafter, next_queue_run */

5240

assert_open_and_parse_question_with_notafter(0, 1, 1);

5241

}

5242

5243

static void

5244

test_open_and_parse_question_notafter_1_2(__attribute__((unused))

5245

test_fixture *fixture,

5246

__attribute__((unused))

5247

gconstpointer user_data){

5248

/* current_time, notafter, next_queue_run */

5249

assert_open_and_parse_question_with_notafter(0, 1, 2);

5250

}

5251

5252

static void

5253

test_open_and_parse_question_equal_notafter(__attribute__((unused))

5254

test_fixture *fixture,

5255

__attribute__((unused))

5256

gconstpointer user_data){

5257

/* current_time, notafter, next_queue_run */

5258

assert_open_and_parse_question_with_notafter(1, 1, 0);

5259

}

5260

5261

static void

5262

test_open_and_parse_question_late_notafter(__attribute__((unused))

5263

test_fixture *fixture,

5264

__attribute__((unused))

5265

gconstpointer user_data){

5266

/* current_time, notafter, next_queue_run */

5267

assert_open_and_parse_question_with_notafter(2, 1, 0);

5268

}

5269

5270

static void assert_cancel_old_question_param(const mono_microsecs

5271

next_queue_run,

5272

const mono_microsecs

5273

notafter,

5274

const mono_microsecs

5275

current_time,

5276

const mono_microsecs

5277

next_set_to){

5278

__attribute__((cleanup(string_set_clear)))

5279

string_set cancelled_filenames = {};

5280

__attribute__((cleanup(cleanup_queue)))

5281

task_queue *queue = create_queue();

5282

g_assert_nonnull(queue);

5283

queue->next_run = next_queue_run;

5284

5285

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

5286

g_assert_nonnull(question_filename);

5287

task_context task = {

5288

.func=cancel_old_question,

5289

.question_filename=question_filename,

5290

.filename=question_filename,

5291

.notafter=notafter,

5292

.cancelled_filenames=&cancelled_filenames,

5293

.current_time=&current_time,

5294

};

5295

task.func(task, queue);

5296

5297

if(current_time >= notafter){

5298

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

5299

g_assert_true(string_set_contains(cancelled_filenames,

5300

"/nonexistent"));

5301

} else {

5302

g_assert_nonnull(find_matching_task(queue, (task_context){

5303

.func=cancel_old_question,

5304

.question_filename=question_filename,

5305

.filename=question_filename,

5306

.notafter=notafter,

5307

.cancelled_filenames=&cancelled_filenames,

5308

.current_time=&current_time,

5309

}));

5310

5311

g_assert_false(string_set_contains(cancelled_filenames,

5312

question_filename));

5313

}

5314

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

5315

(unsigned int)next_set_to);

5316

}

5317

5318

static void test_cancel_old_question_0_1_2(__attribute__((unused))

5319

test_fixture *fixture,

5320

__attribute__((unused))

5321

gconstpointer user_data){

5322

/* next_queue_run unset,

5323

cancellation should happen because time has come,

5324

next_queue_run should be unchanged */

5325

/* next_queue_run, notafter, current_time, next_set_to */

5326

assert_cancel_old_question_param(0, 1, 2, 0);

5327

}

5328

5329

static void test_cancel_old_question_0_2_1(__attribute__((unused))

5330

test_fixture *fixture,

5331

__attribute__((unused))

5332

gconstpointer user_data){

5333

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

5334

and current_time is not yet notafter or greater,

5335

update value of next_queue_run to value of notafter */

5336

/* next_queue_run, notafter, current_time, next_set_to */

5337

assert_cancel_old_question_param(0, 2, 1, 2);

5338

}

5339

5340

static void test_cancel_old_question_1_2_3(__attribute__((unused))

5341

test_fixture *fixture,

5342

__attribute__((unused))

5343

gconstpointer user_data){

5344

/* next_queue_run 1,

5345

cancellation should happen because time has come,

5346

next_queue_run should be unchanged */

5347

/* next_queue_run, notafter, current_time, next_set_to */

5348

assert_cancel_old_question_param(1, 2, 3, 1);

5349

}

5350

5351

static void test_cancel_old_question_1_3_2(__attribute__((unused))

5352

test_fixture *fixture,

5353

__attribute__((unused))

5354

gconstpointer user_data){

5355

/* If next_queue_run is set,

5356

and current_time is not yet notafter or greater,

5357

and notafter is larger than next_queue_run

5358

next_queue_run should be unchanged */

5359

/* next_queue_run, notafter, current_time, next_set_to */

5360

assert_cancel_old_question_param(1, 3, 2, 1);

5361

}

5362

5363

static void test_cancel_old_question_2_1_3(__attribute__((unused))

5364

test_fixture *fixture,

5365

__attribute__((unused))

5366

gconstpointer user_data){

5367

/* next_queue_run 2,

5368

cancellation should happen because time has come,

5369

next_queue_run should be unchanged */

5370

/* next_queue_run, notafter, current_time, next_set_to */

5371

assert_cancel_old_question_param(2, 1, 3, 2);

5372

}

5373

5374

static void test_cancel_old_question_2_3_1(__attribute__((unused))

5375

test_fixture *fixture,

5376

__attribute__((unused))

5377

gconstpointer user_data){

5378

/* If next_queue_run is set,

5379

and current_time is not yet notafter or greater,

5380

and notafter is larger than next_queue_run

5381

next_queue_run should be unchanged */

5382

/* next_queue_run, notafter, current_time, next_set_to */

5383

assert_cancel_old_question_param(2, 3, 1, 2);

5384

}

5385

5386

static void test_cancel_old_question_3_1_2(__attribute__((unused))

5387

test_fixture *fixture,

5388

__attribute__((unused))

5389

gconstpointer user_data){

5390

/* next_queue_run 3,

5391

cancellation should happen because time has come,

5392

next_queue_run should be unchanged */

5393

/* next_queue_run, notafter, current_time, next_set_to */

5394

assert_cancel_old_question_param(3, 1, 2, 3);

5395

}

5396

5397

static void test_cancel_old_question_3_2_1(__attribute__((unused))

5398

test_fixture *fixture,

5399

__attribute__((unused))

5400

gconstpointer user_data){

5401

/* If next_queue_run is set,

5402

and current_time is not yet notafter or greater,

5403

and notafter is smaller than next_queue_run

5404

update value of next_queue_run to value of notafter */

5405

/* next_queue_run, notafter, current_time, next_set_to */

5406

assert_cancel_old_question_param(3, 2, 1, 2);

5407

}

5408

5409

static void

5410

test_connect_question_socket_name_too_long(__attribute__((unused))

5411

test_fixture *fixture,

5412

__attribute__((unused))

5413

gconstpointer user_data){

5414

__attribute__((cleanup(cleanup_close)))

5415

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5416

g_assert_cmpint(epoll_fd, >=, 0);

5417

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

5418

__attribute__((cleanup(string_set_clear)))

5419

string_set cancelled_filenames = {};

5420

__attribute__((cleanup(cleanup_queue)))

5421

task_queue *queue = create_queue();

5422

g_assert_nonnull(queue);

5423

__attribute__((cleanup(cleanup_string)))

5424

char *tempdir = make_temporary_directory();

5425

g_assert_nonnull(tempdir);

5426

struct sockaddr_un unix_socket = { .sun_family=AF_LOCAL };

5427

char socket_name[sizeof(unix_socket.sun_path)];

5428

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

5429

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

5430

char *filename = NULL;

5431

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

5432

>, 0);

5433

g_assert_nonnull(filename);

5434

5435

task_context task = {

5436

.func=connect_question_socket,

5437

.question_filename=strdup(question_filename),

5438

.epoll_fd=epoll_fd,

5439

.password=(buffer[]){{}},

5440

.filename=filename,

5441

.cancelled_filenames=&cancelled_filenames,

5442

.mandos_client_exited=(bool[]){false},

5443

.password_is_read=(bool[]){false},

5444

.current_time=(mono_microsecs[]){0},

5445

};

5446

g_assert_nonnull(task.question_filename);

5447

run_task_with_stderr_to_dev_null(task, queue);

5448

5449

g_assert_true(string_set_contains(cancelled_filenames,

5450

question_filename));

5451

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5452

g_assert_true(queue->next_run == 0);

5453

5454

g_assert_cmpint(rmdir(tempdir), ==, 0);

5455

}

5456

5457

static

5458

void test_connect_question_socket_connect_fail(__attribute__((unused))

5459

test_fixture *fixture,

5460

__attribute__((unused))

5461

gconstpointer

5462

user_data){

5463

__attribute__((cleanup(cleanup_close)))

5464

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5465

g_assert_cmpint(epoll_fd, >=, 0);

5466

const char question_filename[] = "/nonexistent/question";

5467

__attribute__((cleanup(string_set_clear)))

5468

string_set cancelled_filenames = {};

5469

const mono_microsecs current_time = 3;

5470

__attribute__((cleanup(cleanup_queue)))

5471

task_queue *queue = create_queue();

5472

g_assert_nonnull(queue);

5473

__attribute__((cleanup(cleanup_string)))

5474

char *tempdir = make_temporary_directory();

5475

g_assert_nonnull(tempdir);

5476

char socket_name[] = "nonexistent";

5477

char *filename = NULL;

5478

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5479

>, 0);

5480

g_assert_nonnull(filename);

5481

5482

task_context task = {

5483

.func=connect_question_socket,

5484

.question_filename=strdup(question_filename),

5485

.epoll_fd=epoll_fd,

5486

.password=(buffer[]){{}},

5487

.filename=filename,

5488

.cancelled_filenames=&cancelled_filenames,

5489

.mandos_client_exited=(bool[]){false},

5490

.password_is_read=(bool[]){false},

5491

.current_time=&current_time,

5492

};

5493

g_assert_nonnull(task.question_filename);

5494

run_task_with_stderr_to_dev_null(task, queue);

5495

5496

g_assert_nonnull(find_matching_task(queue, task));

5497

5498

g_assert_false(string_set_contains(cancelled_filenames,

5499

question_filename));

5500

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5501

g_assert_true(queue->next_run == 1000000 + current_time);

5502

5503

g_assert_cmpint(rmdir(tempdir), ==, 0);

5504

}

5505

5506

static

5507

void test_connect_question_socket_bad_epoll(__attribute__((unused))

5508

test_fixture *fixture,

5509

__attribute__((unused))

5510

gconstpointer user_data){

5511

__attribute__((cleanup(cleanup_close)))

5512

const int epoll_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);

5513

__attribute__((cleanup(cleanup_string)))

5514

char *const question_filename = strdup("/nonexistent/question");

5515

g_assert_nonnull(question_filename);

5516

__attribute__((cleanup(string_set_clear)))

5517

string_set cancelled_filenames = {};

5518

const mono_microsecs current_time = 5;

5519

__attribute__((cleanup(cleanup_queue)))

5520

task_queue *queue = create_queue();

5521

g_assert_nonnull(queue);

5522

__attribute__((cleanup(cleanup_string)))

5523

char *tempdir = make_temporary_directory();

5524

g_assert_nonnull(tempdir);

5525

__attribute__((cleanup(cleanup_close)))

5526

const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM

5527

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

5528

g_assert_cmpint(sock_fd, >=, 0);

5529

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

5530

const char socket_name[] = "socket_name";

5531

__attribute__((cleanup(cleanup_string)))

5532

char *filename = NULL;

5533

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5534

>, 0);

5535

g_assert_nonnull(filename);

5536

g_assert_cmpint((int)strlen(filename), <,

5537

(int)sizeof(sock_name.sun_path));

5538

strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));

5539

sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';

5540

g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,

5541

(socklen_t)SUN_LEN(&sock_name)), >=, 0);

5542

task_context task = {

5543

.func=connect_question_socket,

5544

.question_filename=strdup(question_filename),

5545

.epoll_fd=epoll_fd,

5546

.password=(buffer[]){{}},

5547

.filename=strdup(filename),

5548

.cancelled_filenames=&cancelled_filenames,

5549

.mandos_client_exited=(bool[]){false},

5550

.password_is_read=(bool[]){false},

5551

.current_time=&current_time,

5552

};

5553

g_assert_nonnull(task.question_filename);

5554

run_task_with_stderr_to_dev_null(task, queue);

5555

5556

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5557

const task_context *const added_task

5558

= find_matching_task(queue, task);

5559

g_assert_nonnull(added_task);

5560

g_assert_true(queue->next_run == 1000000 + current_time);

5561

5562

g_assert_cmpint(unlink(filename), ==, 0);

5563

g_assert_cmpint(rmdir(tempdir), ==, 0);

5564

}

5565

5566

static

5567

void test_connect_question_socket_usable(__attribute__((unused))

5568

test_fixture *fixture,

5569

__attribute__((unused))

5570

gconstpointer user_data){

5571

__attribute__((cleanup(cleanup_close)))

5572

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5573

g_assert_cmpint(epoll_fd, >=, 0);

5574

__attribute__((cleanup(cleanup_string)))

5575

char *const question_filename = strdup("/nonexistent/question");

5576

g_assert_nonnull(question_filename);

5577

__attribute__((cleanup(string_set_clear)))

5578

string_set cancelled_filenames = {};

5579

buffer password = {};

5580

bool mandos_client_exited = false;

5581

bool password_is_read = false;

5582

const mono_microsecs current_time = 0;

5583

__attribute__((cleanup(cleanup_queue)))

5584

task_queue *queue = create_queue();

5585

g_assert_nonnull(queue);

5586

__attribute__((cleanup(cleanup_string)))

5587

char *tempdir = make_temporary_directory();

5588

g_assert_nonnull(tempdir);

5589

__attribute__((cleanup(cleanup_close)))

5590

const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM

5591

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

5592

g_assert_cmpint(sock_fd, >=, 0);

5593

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

5594

const char socket_name[] = "socket_name";

5595

__attribute__((cleanup(cleanup_string)))

5596

char *filename = NULL;

5597

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5598

>, 0);

5599

g_assert_nonnull(filename);

5600

g_assert_cmpint((int)strlen(filename), <,

5601

(int)sizeof(sock_name.sun_path));

5602

strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));

5603

sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';

5604

g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,

5605

(socklen_t)SUN_LEN(&sock_name)), >=, 0);

5606

task_context task = {

5607

.func=connect_question_socket,

5608

.question_filename=strdup(question_filename),

5609

.epoll_fd=epoll_fd,

5610

.password=&password,

5611

.filename=strdup(filename),

5612

.cancelled_filenames=&cancelled_filenames,

5613

.mandos_client_exited=&mandos_client_exited,

5614

.password_is_read=&password_is_read,

5615

.current_time=&current_time,

5616

};

5617

g_assert_nonnull(task.question_filename);

5618

task.func(task, queue);

5619

5620

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5621

const task_context *const added_task

5622

= find_matching_task(queue, (task_context){

5623

.func=send_password_to_socket,

5624

.question_filename=question_filename,

5625

.filename=filename,

5626

.epoll_fd=epoll_fd,

5627

.password=&password,

5628

.cancelled_filenames=&cancelled_filenames,

5629

.mandos_client_exited=&mandos_client_exited,

5630

.password_is_read=&password_is_read,

5631

.current_time=&current_time,

5632

});

5633

g_assert_nonnull(added_task);

5634

g_assert_cmpint(added_task->fd, >, 0);

5635

5636

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5637

EPOLLOUT));

5638

5639

const int fd = added_task->fd;

5640

g_assert_cmpint(fd, >, 0);

5641

g_assert_true(fd_has_cloexec_and_nonblock(fd));

5642

5643

/* write to fd */

5644

char write_data[PIPE_BUF];

5645

{

5646

/* Construct test password buffer */

5647

/* Start with + since that is what the real procotol uses */

5648

write_data[0] = '+';

5649

/* Set a special character at string end just to mark the end */

5650

write_data[sizeof(write_data)-2] = 'y';

5651

/* Set NUL at buffer end, as suggested by the protocol */

5652

write_data[sizeof(write_data)-1] = '\0';

5653

/* Fill rest of password with 'x' */

5654

memset(write_data+1, 'x', sizeof(write_data)-3);

5655

g_assert_cmpint((int)send(fd, write_data, sizeof(write_data),

5656

MSG_NOSIGNAL), ==, sizeof(write_data));

5657

}

5658

5659

/* read from sock_fd */

5660

char read_data[sizeof(write_data)];

5661

g_assert_cmpint((int)read(sock_fd, read_data, sizeof(read_data)),

5662

==, sizeof(read_data));

5663

5664

g_assert_true(memcmp(write_data, read_data, sizeof(write_data))

5665

== 0);

5666

5667

/* writing to sock_fd should fail */

5668

g_assert_cmpint(send(sock_fd, write_data, sizeof(write_data),

5669

MSG_NOSIGNAL), <, 0);

5670

5671

/* reading from fd should fail */

5672

g_assert_cmpint((int)recv(fd, read_data, sizeof(read_data),

5673

MSG_NOSIGNAL), <, 0);

5674

5675

g_assert_cmpint(unlink(filename), ==, 0);

5676

g_assert_cmpint(rmdir(tempdir), ==, 0);

5677

}

5678

5679

static void

5680

test_send_password_to_socket_client_not_exited(__attribute__((unused))

5681

test_fixture *fixture,

5682

__attribute__((unused))

5683

gconstpointer

5684

user_data){

5685

__attribute__((cleanup(cleanup_close)))

5686

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5687

g_assert_cmpint(epoll_fd, >=, 0);

5688

__attribute__((cleanup(cleanup_string)))

5689

char *const question_filename = strdup("/nonexistent/question");

5690

g_assert_nonnull(question_filename);

5691

__attribute__((cleanup(cleanup_string)))

5692

char *const filename = strdup("/nonexistent/socket");

5693

g_assert_nonnull(filename);

5694

__attribute__((cleanup(string_set_clear)))

5695

string_set cancelled_filenames = {};

5696

buffer password = {};

5697

bool password_is_read = true;

5698

__attribute__((cleanup(cleanup_queue)))

5699

task_queue *queue = create_queue();

5700

g_assert_nonnull(queue);

5701

int socketfds[2];

5702

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5703

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5704

socketfds), ==, 0);

5705

__attribute__((cleanup(cleanup_close)))

5706

const int read_socket = socketfds[0];

5707

const int write_socket = socketfds[1];

5708

task_context task = {

5709

.func=send_password_to_socket,

5710

.question_filename=strdup(question_filename),

5711

.filename=strdup(filename),

5712

.epoll_fd=epoll_fd,

5713

.fd=write_socket,

5714

.password=&password,

5715

.cancelled_filenames=&cancelled_filenames,

5716

.mandos_client_exited=(bool[]){false},

5717

.password_is_read=&password_is_read,

5718

.current_time=(mono_microsecs[]){0},

5719

};

5720

g_assert_nonnull(task.question_filename);

5721

5722

task.func(task, queue);

5723

5724

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5725

5726

const task_context *const added_task

5727

= find_matching_task(queue, task);

5728

g_assert_nonnull(added_task);

5729

g_assert_cmpuint((unsigned int)password.length, ==, 0);

5730

g_assert_true(password_is_read);

5731

5732

g_assert_cmpint(added_task->fd, >, 0);

5733

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5734

EPOLLOUT));

5735

}

5736

5737

static void

5738

test_send_password_to_socket_password_not_read(__attribute__((unused))

5739

test_fixture *fixture,

5740

__attribute__((unused))

5741

gconstpointer

5742

user_data){

5743

__attribute__((cleanup(cleanup_close)))

5744

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5745

g_assert_cmpint(epoll_fd, >=, 0);

5746

__attribute__((cleanup(cleanup_string)))

5747

char *const question_filename = strdup("/nonexistent/question");

5748

g_assert_nonnull(question_filename);

5749

__attribute__((cleanup(cleanup_string)))

5750

char *const filename = strdup("/nonexistent/socket");

5751

__attribute__((cleanup(string_set_clear)))

5752

string_set cancelled_filenames = {};

5753

buffer password = {};

5754

__attribute__((cleanup(cleanup_queue)))

5755

task_queue *queue = create_queue();

5756

g_assert_nonnull(queue);

5757

int socketfds[2];

5758

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5759

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5760

socketfds), ==, 0);

5761

__attribute__((cleanup(cleanup_close)))

5762

const int read_socket = socketfds[0];

5763

const int write_socket = socketfds[1];

5764

task_context task = {

5765

.func=send_password_to_socket,

5766

.question_filename=strdup(question_filename),

5767

.filename=strdup(filename),

5768

.epoll_fd=epoll_fd,

5769

.fd=write_socket,

5770

.password=&password,

5771

.cancelled_filenames=&cancelled_filenames,

5772

.mandos_client_exited=(bool[]){false},

5773

.password_is_read=(bool[]){false},

5774

.current_time=(mono_microsecs[]){0},

5775

};

5776

g_assert_nonnull(task.question_filename);

5777

5778

task.func(task, queue);

5779

5780

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5781

5782

const task_context *const added_task = find_matching_task(queue,

5783

task);

5784

g_assert_nonnull(added_task);

5785

g_assert_cmpuint((unsigned int)password.length, ==, 0);

5786

g_assert_true(queue->next_run == 0);

5787

5788

g_assert_cmpint(added_task->fd, >, 0);

5789

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5790

EPOLLOUT));

5791

}

5792

5793

static

5794

void test_send_password_to_socket_EMSGSIZE(__attribute__((unused))

5795

test_fixture *fixture,

5796

__attribute__((unused))

5797

gconstpointer user_data){

5798

__attribute__((cleanup(cleanup_close)))

5799

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5800

g_assert_cmpint(epoll_fd, >=, 0);

5801

const char question_filename[] = "/nonexistent/question";

5802

char *const filename = strdup("/nonexistent/socket");

5803

__attribute__((cleanup(string_set_clear)))

5804

string_set cancelled_filenames = {};

5805

const size_t oversized = 1024*1024; /* Limit seems to be 212960 */

5806

__attribute__((cleanup(cleanup_buffer)))

5807

buffer password = {

5808

.data=malloc(oversized),

5809

.length=oversized,

5810

.allocated=oversized,

5811

};

5812

g_assert_nonnull(password.data);

5813

if(mlock(password.data, password.allocated) != 0){

5814

g_assert_true(errno == EPERM or errno == ENOMEM);

5815

}

5816

/* Construct test password buffer */

5817

/* Start with + since that is what the real procotol uses */

5818

password.data[0] = '+';

5819

/* Set a special character at string end just to mark the end */

5820

password.data[oversized-3] = 'y';

5821

/* Set NUL at buffer end, as suggested by the protocol */

5822

password.data[oversized-2] = '\0';

5823

/* Fill rest of password with 'x' */

5824

memset(password.data+1, 'x', oversized-3);

5825

5826

__attribute__((cleanup(cleanup_queue)))

5827

task_queue *queue = create_queue();

5828

g_assert_nonnull(queue);

5829

int socketfds[2];

5830

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5831

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5832

socketfds), ==, 0);

5833

__attribute__((cleanup(cleanup_close)))

5834

const int read_socket = socketfds[0];

5835

__attribute__((cleanup(cleanup_close)))

5836

const int write_socket = socketfds[1];

5837

task_context task = {

5838

.func=send_password_to_socket,

5839

.question_filename=strdup(question_filename),

5840

.filename=filename,

5841

.epoll_fd=epoll_fd,

5842

.fd=write_socket,

5843

.password=&password,

5844

.cancelled_filenames=&cancelled_filenames,

5845

.mandos_client_exited=(bool[]){true},

5846

.password_is_read=(bool[]){true},

5847

.current_time=(mono_microsecs[]){0},

5848

};

5849

g_assert_nonnull(task.question_filename);

5850

5851

run_task_with_stderr_to_dev_null(task, queue);

5852

5853

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5854

g_assert_true(string_set_contains(cancelled_filenames,

5855

question_filename));

5856

}

5857

5858

static void test_send_password_to_socket_retry(__attribute__((unused))

5859

test_fixture *fixture,

5860

__attribute__((unused))

5861

gconstpointer

5862

user_data){

5863

__attribute__((cleanup(cleanup_close)))

5864

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5865

g_assert_cmpint(epoll_fd, >=, 0);

5866

__attribute__((cleanup(cleanup_string)))

5867

char *const question_filename = strdup("/nonexistent/question");

5868

g_assert_nonnull(question_filename);

5869

__attribute__((cleanup(cleanup_string)))

5870

char *const filename = strdup("/nonexistent/socket");

5871

g_assert_nonnull(filename);

5872

__attribute__((cleanup(string_set_clear)))

5873

string_set cancelled_filenames = {};

5874

__attribute__((cleanup(cleanup_buffer)))

5875

buffer password = {};

5876

5877

__attribute__((cleanup(cleanup_queue)))

5878

task_queue *queue = create_queue();

5879

g_assert_nonnull(queue);

5880

int socketfds[2];

5881

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5882

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5883

socketfds), ==, 0);

5884

__attribute__((cleanup(cleanup_close)))

5885

const int read_socket = socketfds[0];

5886

const int write_socket = socketfds[1];

5887

/* Close the server side socket to force ECONNRESET on client */

5888

g_assert_cmpint(close(read_socket), ==, 0);

5889

task_context task = {

5890

.func=send_password_to_socket,

5891

.question_filename=strdup(question_filename),

5892

.filename=strdup(filename),

5893

.epoll_fd=epoll_fd,

5894

.fd=write_socket,

5895

.password=&password,

5896

.cancelled_filenames=&cancelled_filenames,

5897

.mandos_client_exited=(bool[]){true},

5898

.password_is_read=(bool[]){true},

5899

.current_time=(mono_microsecs[]){0},

5900

};

5901

g_assert_nonnull(task.question_filename);

5902

5903

task.func(task, queue);

5904

5905

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5906

5907

const task_context *const added_task = find_matching_task(queue,

5908

task);

5909

g_assert_nonnull(added_task);

5910

g_assert_cmpuint((unsigned int)password.length, ==, 0);

5911

5912

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5913

EPOLLOUT));

5914

}

5915

5916

static

5917

void test_send_password_to_socket_bad_epoll(__attribute__((unused))

5918

test_fixture *fixture,

5919

__attribute__((unused))

5920

gconstpointer user_data){

5921

__attribute__((cleanup(cleanup_close)))

5922

const int epoll_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);

5923

__attribute__((cleanup(cleanup_string)))

5924

char *const question_filename = strdup("/nonexistent/question");

5925

g_assert_nonnull(question_filename);

5926

__attribute__((cleanup(cleanup_string)))

5927

char *const filename = strdup("/nonexistent/socket");

5928

g_assert_nonnull(filename);

5929

__attribute__((cleanup(string_set_clear)))

5930

string_set cancelled_filenames = {};

5931

__attribute__((cleanup(cleanup_buffer)))

5932

buffer password = {};

5933

5934

const mono_microsecs current_time = 11;

5935

__attribute__((cleanup(cleanup_queue)))

5936

task_queue *queue = create_queue();

5937

g_assert_nonnull(queue);

5938

int socketfds[2];

5939

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5940

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5941

socketfds), ==, 0);

5942

__attribute__((cleanup(cleanup_close)))

5943

const int read_socket = socketfds[0];

5944

const int write_socket = socketfds[1];

5945

/* Close the server side socket to force ECONNRESET on client */

5946

g_assert_cmpint(close(read_socket), ==, 0);

5947

task_context task = {

5948

.func=send_password_to_socket,

5949

.question_filename=strdup(question_filename),

5950

.filename=strdup(filename),

5951

.epoll_fd=epoll_fd,

5952

.fd=write_socket,

5953

.password=&password,

5954

.cancelled_filenames=&cancelled_filenames,

5955

.mandos_client_exited=(bool[]){true},

5956

.password_is_read=(bool[]){true},

5957

.current_time=&current_time,

5958

};

5959

g_assert_nonnull(task.question_filename);

5960

5961

run_task_with_stderr_to_dev_null(task, queue);

5962

5963

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5964

5965

const task_context *const added_task = find_matching_task(queue,

5966

task);

5967

g_assert_nonnull(added_task);

5968

g_assert_true(queue->next_run == current_time + 1000000);

5969

g_assert_cmpuint((unsigned int)password.length, ==, 0);

5970

}

5971

5972

static void assert_send_password_to_socket_password(buffer password){

5973

__attribute__((cleanup(cleanup_close)))

5974

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5975

g_assert_cmpint(epoll_fd, >=, 0);

5976

char *const question_filename = strdup("/nonexistent/question");

5977

g_assert_nonnull(question_filename);

5978

char *const filename = strdup("/nonexistent/socket");

5979

g_assert_nonnull(filename);

5980

__attribute__((cleanup(string_set_clear)))

5981

string_set cancelled_filenames = {};

5982

5983

__attribute__((cleanup(cleanup_queue)))

5984

task_queue *queue = create_queue();

5985

g_assert_nonnull(queue);

5986

int socketfds[2];

5987

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5988

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5989

socketfds), ==, 0);

5990

__attribute__((cleanup(cleanup_close)))

5991

const int read_socket = socketfds[0];

5992

const int write_socket = socketfds[1];

5993

task_context task = {

5994

.func=send_password_to_socket,

5995

.question_filename=question_filename,

5996

.filename=filename,

5997

.epoll_fd=epoll_fd,

5998

.fd=write_socket,

5999

.password=&password,

6000

.cancelled_filenames=&cancelled_filenames,

6001

.mandos_client_exited=(bool[]){true},

6002

.password_is_read=(bool[]){true},

6003

.current_time=(mono_microsecs[]){0},

6004

};

6005

6006

char *expected_written_data = malloc(password.length + 2);

6007

g_assert_nonnull(expected_written_data);

6008

expected_written_data[0] = '+';

6009

expected_written_data[password.length + 1] = '\0';

6010

if(password.length > 0){

6011

g_assert_nonnull(password.data);

6012

memcpy(expected_written_data + 1, password.data, password.length);

6013

}

6014

6015

task.func(task, queue);

6016

6017

char buf[PIPE_BUF];

6018

g_assert_cmpint((int)read(read_socket, buf, PIPE_BUF), ==,

6019

(int)(password.length + 2));

6020

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6021

6022

g_assert_true(memcmp(expected_written_data, buf,

6023

password.length + 2) == 0);

6024

6025

g_assert_true(epoll_set_does_not_contain(epoll_fd, write_socket));

6026

6027

free(expected_written_data);

6028

}

6029

6030

static void

6031

test_send_password_to_socket_null_password(__attribute__((unused))

6032

test_fixture *fixture,

6033

__attribute__((unused))

6034

gconstpointer user_data){

6035

__attribute__((cleanup(cleanup_buffer)))

6036

buffer password = {};

6037

assert_send_password_to_socket_password(password);

6038

}

6039

6040

static void

6041

test_send_password_to_socket_empty_password(__attribute__((unused))

6042

test_fixture *fixture,

6043

__attribute__((unused))

6044

gconstpointer user_data){

6045

__attribute__((cleanup(cleanup_buffer)))

6046

buffer password = {

6047

.data=malloc(1), /* because malloc(0) may return NULL */

6048

.length=0,

6049

.allocated=0, /* deliberate lie */

6050

};

6051

g_assert_nonnull(password.data);

6052

assert_send_password_to_socket_password(password);

6053

}

6054

6055

static void

6056

test_send_password_to_socket_empty_str_pass(__attribute__((unused))

6057

test_fixture *fixture,

6058

__attribute__((unused))

6059

gconstpointer user_data){

6060

__attribute__((cleanup(cleanup_buffer)))

6061

buffer password = {

6062

.data=strdup(""),

6063

.length=0,

6064

.allocated=1,

6065

};

6066

if(mlock(password.data, password.allocated) != 0){

6067

g_assert_true(errno == EPERM or errno == ENOMEM);

6068

}

6069

assert_send_password_to_socket_password(password);

6070

}

6071

6072

static void

6073

test_send_password_to_socket_text_password(__attribute__((unused))

6074

test_fixture *fixture,

6075

__attribute__((unused))

6076

gconstpointer user_data){

6077

const char dummy_test_password[] = "dummy test password";

6078

__attribute__((cleanup(cleanup_buffer)))

6079

buffer password = {

6080

.data = strdup(dummy_test_password),

6081

.length = strlen(dummy_test_password),

6082

.allocated = sizeof(dummy_test_password),

6083

};

6084

if(mlock(password.data, password.allocated) != 0){

6085

g_assert_true(errno == EPERM or errno == ENOMEM);

6086

}

6087

assert_send_password_to_socket_password(password);

6088

}

6089

6090

static void

6091

test_send_password_to_socket_binary_password(__attribute__((unused))

6092

test_fixture *fixture,

6093

__attribute__((unused))

6094

gconstpointer user_data){

6095

__attribute__((cleanup(cleanup_buffer)))

6096

buffer password = {

6097

.data=malloc(255),

6098

.length=255,

6099

.allocated=255,

6100

};

6101

g_assert_nonnull(password.data);

6102

if(mlock(password.data, password.allocated) != 0){

6103

g_assert_true(errno == EPERM or errno == ENOMEM);

6104

}

6105

char c = 1; /* Start at 1, avoiding NUL */

6106

for(int i=0; i < 255; i++){

6107

password.data[i] = c++;

6108

}

6109

assert_send_password_to_socket_password(password);

6110

}

6111

6112

static void

6113

test_send_password_to_socket_nuls_in_password(__attribute__((unused))

6114

test_fixture *fixture,

6115

__attribute__((unused))

6116

gconstpointer

6117

user_data){

6118

char test_password[] = {'\0', 'a', '\0', 'b', '\0', 'c', '\0'};

6119

__attribute__((cleanup(cleanup_buffer)))

6120

buffer password = {

6121

.data=malloc(sizeof(test_password)),

6122

.length=sizeof(test_password),

6123

.allocated=sizeof(test_password),

6124

};

6125

g_assert_nonnull(password.data);

6126

if(mlock(password.data, password.allocated) !=0){

6127

g_assert_true(errno == EPERM or errno == ENOMEM);

6128

}

6129

memcpy(password.data, test_password, password.allocated);

6130

assert_send_password_to_socket_password(password);

6131

}

6132

6133

static bool assert_add_existing_questions_to_devnull(task_queue

6134

*const,

6135

const int,

6136

buffer *const,

6137

string_set *,

6138

const

6139

mono_microsecs

6140

*const,

6141

bool *const,

6142

bool *const,

6143

const char

6144

*const);

6145

6146

static void test_add_existing_questions_ENOENT(__attribute__((unused))

6147

test_fixture *fixture,

6148

__attribute__((unused))

6149

gconstpointer

6150

user_data){

6151

__attribute__((cleanup(cleanup_queue)))

6152

task_queue *queue = create_queue();

6153

g_assert_nonnull(queue);

6154

__attribute__((cleanup(cleanup_close)))

6155

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6156

g_assert_cmpint(epoll_fd, >=, 0);

6157

__attribute__((cleanup(string_set_clear)))

6158

string_set cancelled_filenames = {};

6159

6160

g_assert_false(assert_add_existing_questions_to_devnull

6161

(queue,

6162

epoll_fd,

6163

(buffer[]){{}}, /* password */

6164

&cancelled_filenames,

6165

(mono_microsecs[]){0}, /* current_time */

6166

(bool[]){false}, /* mandos_client_exited */

6167

(bool[]){false}, /* password_is_read */

6168

"/nonexistent")); /* dirname */

6169

6170

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6171

}

6172

6173

static

6174

bool assert_add_existing_questions_to_devnull(task_queue

6175

*const queue,

6176

const int

6177

epoll_fd,

6178

buffer *const

6179

password,

6180

string_set

6181

*cancelled_filenames,

6182

const mono_microsecs

6183

*const current_time,

6184

bool *const

6185

mandos_client_exited,

6186

bool *const

6187

password_is_read,

6188

const char *const

6189

dirname){

6190

__attribute__((cleanup(cleanup_close)))

6191

const int devnull_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);

6192

g_assert_cmpint(devnull_fd, >=, 0);

6193

__attribute__((cleanup(cleanup_close)))

6194

const int real_stderr_fd = dup(STDERR_FILENO);

6195

g_assert_cmpint(real_stderr_fd, >=, 0);

6196

dup2(devnull_fd, STDERR_FILENO);

6197

const bool ret = add_existing_questions(queue, epoll_fd, password,

6198

cancelled_filenames,

6199

current_time,

6200

mandos_client_exited,

6201

password_is_read, dirname);

6202

dup2(real_stderr_fd, STDERR_FILENO);

6203

return ret;

6204

}

6205

6206

static

6207

void test_add_existing_questions_no_questions(__attribute__((unused))

6208

test_fixture *fixture,

6209

__attribute__((unused))

6210

gconstpointer

6211

user_data){

6212

__attribute__((cleanup(cleanup_queue)))

6213

task_queue *queue = create_queue();

6214

g_assert_nonnull(queue);

6215

__attribute__((cleanup(cleanup_close)))

6216

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6217

g_assert_cmpint(epoll_fd, >=, 0);

6218

__attribute__((cleanup(string_set_clear)))

6219

string_set cancelled_filenames = {};

6220

__attribute__((cleanup(cleanup_string)))

6221

char *tempdir = make_temporary_directory();

6222

g_assert_nonnull(tempdir);

6223

6224

g_assert_false(assert_add_existing_questions_to_devnull

6225

(queue,

6226

epoll_fd,

6227

(buffer[]){{}}, /* password */

6228

&cancelled_filenames,

6229

(mono_microsecs[]){0}, /* current_time */

6230

(bool[]){false}, /* mandos_client_exited */

6231

(bool[]){false}, /* password_is_read */

6232

tempdir));

6233

6234

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6235

6236

g_assert_cmpint(rmdir(tempdir), ==, 0);

6237

}

6238

6239

static char *make_question_file_in_directory(const char *const);

6240

6241

static

6242

void test_add_existing_questions_one_question(__attribute__((unused))

6243

test_fixture *fixture,

6244

__attribute__((unused))

6245

gconstpointer

6246

user_data){

6247

__attribute__((cleanup(cleanup_queue)))

6248

task_queue *queue = create_queue();

6249

g_assert_nonnull(queue);

6250

__attribute__((cleanup(cleanup_close)))

6251

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6252

g_assert_cmpint(epoll_fd, >=, 0);

6253

__attribute__((cleanup(cleanup_buffer)))

6254

buffer password = {};

6255

__attribute__((cleanup(string_set_clear)))

6256

string_set cancelled_filenames = {};

6257

const mono_microsecs current_time = 0;

6258

bool mandos_client_exited = false;

6259

bool password_is_read = false;

6260

__attribute__((cleanup(cleanup_string)))

6261

char *tempdir = make_temporary_directory();

6262

g_assert_nonnull(tempdir);

6263

__attribute__((cleanup(cleanup_string)))

6264

char *question_filename

6265

= make_question_file_in_directory(tempdir);

6266

g_assert_nonnull(question_filename);

6267

6268

g_assert_true(assert_add_existing_questions_to_devnull

6269

(queue,

6270

epoll_fd,

6271

&password,

6272

&cancelled_filenames,

6273

&current_time,

6274

&mandos_client_exited,

6275

&password_is_read,

6276

tempdir));

6277

6278

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6279

6280

g_assert_nonnull(find_matching_task(queue, (task_context){

6281

.func=open_and_parse_question,

6282

.epoll_fd=epoll_fd,

6283

.filename=question_filename,

6284

.question_filename=question_filename,

6285

.password=&password,

6286

.cancelled_filenames=&cancelled_filenames,

6287

.current_time=&current_time,

6288

.mandos_client_exited=&mandos_client_exited,

6289

.password_is_read=&password_is_read,

6290

}));

6291

6292

g_assert_true(queue->next_run == 1);

6293

6294

g_assert_cmpint(unlink(question_filename), ==, 0);

6295

g_assert_cmpint(rmdir(tempdir), ==, 0);

6296

}

6297

6298

static char *make_question_file_in_directory(const char

6299

*const dir){

6300

return make_temporary_prefixed_file_in_directory("ask.", dir);

6301

}

6302

6303

static

6304

void test_add_existing_questions_two_questions(__attribute__((unused))

6305

test_fixture *fixture,

6306

__attribute__((unused))

6307

gconstpointer

6308

user_data){

6309

__attribute__((cleanup(cleanup_queue)))

6310

task_queue *queue = create_queue();

6311

g_assert_nonnull(queue);

6312

__attribute__((cleanup(cleanup_close)))

6313

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6314

g_assert_cmpint(epoll_fd, >=, 0);

6315

__attribute__((cleanup(cleanup_buffer)))

6316

buffer password = {};

6317

__attribute__((cleanup(string_set_clear)))

6318

string_set cancelled_filenames = {};

6319

const mono_microsecs current_time = 0;

6320

bool mandos_client_exited = false;

6321

bool password_is_read = false;

6322

__attribute__((cleanup(cleanup_string)))

6323

char *tempdir = make_temporary_directory();

6324

g_assert_nonnull(tempdir);

6325

__attribute__((cleanup(cleanup_string)))

6326

char *question_filename1

6327

= make_question_file_in_directory(tempdir);

6328

g_assert_nonnull(question_filename1);

6329

__attribute__((cleanup(cleanup_string)))

6330

char *question_filename2

6331

= make_question_file_in_directory(tempdir);

6332

g_assert_nonnull(question_filename2);

6333

6334

g_assert_true(assert_add_existing_questions_to_devnull

6335

(queue,

6336

epoll_fd,

6337

&password,

6338

&cancelled_filenames,

6339

&current_time,

6340

&mandos_client_exited,

6341

&password_is_read,

6342

tempdir));

6343

6344

g_assert_cmpuint((unsigned int)queue->length, ==, 2);

6345

6346

g_assert_true(queue->next_run == 1);

6347

6348

__attribute__((cleanup(string_set_clear)))

6349

string_set seen_questions = {};

6350

6351

bool queue_contains_question_opener(char *const question_filename){

6352

return(find_matching_task(queue, (task_context){

6353

.func=open_and_parse_question,

6354

.epoll_fd=epoll_fd,

6355

.question_filename=question_filename,

6356

.password=&password,

6357

.cancelled_filenames=&cancelled_filenames,

6358

.current_time=&current_time,

6359

.mandos_client_exited=&mandos_client_exited,

6360

.password_is_read=&password_is_read,

6361

}) != NULL);

6362

}

6363

6364

g_assert_true(queue_contains_question_opener(question_filename1));

6365

g_assert_true(queue_contains_question_opener(question_filename2));

6366

6367

g_assert_true(queue->next_run == 1);

6368

6369

g_assert_cmpint(unlink(question_filename1), ==, 0);

6370

g_assert_cmpint(unlink(question_filename2), ==, 0);

6371

g_assert_cmpint(rmdir(tempdir), ==, 0);

6372

}

6373

6374

static void

6375

test_add_existing_questions_non_questions(__attribute__((unused))

6376

test_fixture *fixture,

6377

__attribute__((unused))

6378

gconstpointer user_data){

6379

__attribute__((cleanup(cleanup_queue)))

6380

task_queue *queue = create_queue();

6381

g_assert_nonnull(queue);

6382

__attribute__((cleanup(cleanup_close)))

6383

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6384

g_assert_cmpint(epoll_fd, >=, 0);

6385

__attribute__((cleanup(string_set_clear)))

6386

string_set cancelled_filenames = {};

6387

__attribute__((cleanup(cleanup_string)))

6388

char *tempdir = make_temporary_directory();

6389

g_assert_nonnull(tempdir);

6390

__attribute__((cleanup(cleanup_string)))

6391

char *question_filename1

6392

= make_temporary_file_in_directory(tempdir);

6393

g_assert_nonnull(question_filename1);

6394

__attribute__((cleanup(cleanup_string)))

6395

char *question_filename2

6396

= make_temporary_file_in_directory(tempdir);

6397

g_assert_nonnull(question_filename2);

6398

6399

g_assert_false(assert_add_existing_questions_to_devnull

6400

(queue,

6401

epoll_fd,

6402

(buffer[]){{}}, /* password */

6403

&cancelled_filenames,

6404

(mono_microsecs[]){0}, /* current_time */

6405

(bool[]){false}, /* mandos_client_exited */

6406

(bool[]){false}, /* password_is_read */

6407

tempdir));

6408

6409

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6410

6411

g_assert_cmpint(unlink(question_filename1), ==, 0);

6412

g_assert_cmpint(unlink(question_filename2), ==, 0);

6413

g_assert_cmpint(rmdir(tempdir), ==, 0);

6414

}

6415

6416

static void

6417

test_add_existing_questions_both_types(__attribute__((unused))

6418

test_fixture *fixture,

6419

__attribute__((unused))

6420

gconstpointer user_data){

6421

__attribute__((cleanup(cleanup_queue)))

6422

task_queue *queue = create_queue();

6423

g_assert_nonnull(queue);

6424

__attribute__((cleanup(cleanup_close)))

6425

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6426

g_assert_cmpint(epoll_fd, >=, 0);

6427

__attribute__((cleanup(cleanup_buffer)))

6428

buffer password = {};

6429

__attribute__((cleanup(string_set_clear)))

6430

string_set cancelled_filenames = {};

6431

const mono_microsecs current_time = 0;

6432

bool mandos_client_exited = false;

6433

bool password_is_read = false;

6434

__attribute__((cleanup(cleanup_string)))

6435

char *tempdir = make_temporary_directory();

6436

g_assert_nonnull(tempdir);

6437

__attribute__((cleanup(cleanup_string)))

6438

char *tempfilename1 = make_temporary_file_in_directory(tempdir);

6439

g_assert_nonnull(tempfilename1);

6440

__attribute__((cleanup(cleanup_string)))

6441

char *tempfilename2 = make_temporary_file_in_directory(tempdir);

6442

g_assert_nonnull(tempfilename2);

6443

__attribute__((cleanup(cleanup_string)))

6444

char *question_filename

6445

= make_question_file_in_directory(tempdir);

6446

g_assert_nonnull(question_filename);

6447

6448

g_assert_true(assert_add_existing_questions_to_devnull

6449

(queue,

6450

epoll_fd,

6451

&password,

6452

&cancelled_filenames,

6453

&current_time,

6454

&mandos_client_exited,

6455

&password_is_read,

6456

tempdir));

6457

6458

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6459

6460

g_assert_nonnull(find_matching_task(queue, (task_context){

6461

.func=open_and_parse_question,

6462

.epoll_fd=epoll_fd,

6463

.filename=question_filename,

6464

.question_filename=question_filename,

6465

.password=&password,

6466

.cancelled_filenames=&cancelled_filenames,

6467

.current_time=&current_time,

6468

.mandos_client_exited=&mandos_client_exited,

6469

.password_is_read=&password_is_read,

6470

}));

6471

6472

g_assert_true(queue->next_run == 1);

6473

6474

g_assert_cmpint(unlink(tempfilename1), ==, 0);

6475

g_assert_cmpint(unlink(tempfilename2), ==, 0);

6476

g_assert_cmpint(unlink(question_filename), ==, 0);

6477

g_assert_cmpint(rmdir(tempdir), ==, 0);

6478

}

6479

6480

static void test_wait_for_event_timeout(__attribute__((unused))

6481

test_fixture *fixture,

6482

__attribute__((unused))

6483

gconstpointer user_data){

6484

__attribute__((cleanup(cleanup_close)))

6485

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6486

g_assert_cmpint(epoll_fd, >=, 0);

6487

6488

g_assert_true(wait_for_event(epoll_fd, 1, 0));

6489

}

6490

6491

static void test_wait_for_event_event(__attribute__((unused))

6492

test_fixture *fixture,

6493

__attribute__((unused))

6494

gconstpointer user_data){

6495

__attribute__((cleanup(cleanup_close)))

6496

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6497

g_assert_cmpint(epoll_fd, >=, 0);

6498

int pipefds[2];

6499

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

6500

__attribute__((cleanup(cleanup_close)))

6501

const int read_pipe = pipefds[0];

6502

__attribute__((cleanup(cleanup_close)))

6503

const int write_pipe = pipefds[1];

6504

g_assert_cmpint(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, read_pipe,

6505

&(struct epoll_event)

6506

{ .events=EPOLLIN | EPOLLRDHUP }), ==, 0);

6507

g_assert_cmpint((int)write(write_pipe, "x", 1), ==, 1);

6508

6509

g_assert_true(wait_for_event(epoll_fd, 0, 0));

6510

}

6511

6512

static void test_wait_for_event_sigchld(test_fixture *fixture,

6513

__attribute__((unused))

6514

gconstpointer user_data){

6515

const pid_t pid = fork();

6516

if(pid == 0){ /* Child */

6517

if(not restore_signal_handler(&fixture->orig_sigaction)){

6518

_exit(EXIT_FAILURE);

6519

}

6520

if(not restore_sigmask(&fixture->orig_sigmask)){

6521

_exit(EXIT_FAILURE);

6522

}

6523

exit(EXIT_SUCCESS);

6524

}

6525

g_assert_true(pid != -1);

6526

__attribute__((cleanup(cleanup_close)))

6527

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6528

g_assert_cmpint(epoll_fd, >=, 0);

6529

6530

g_assert_true(wait_for_event(epoll_fd, 0, 0));

6531

6532

int status;

6533

g_assert_true(waitpid(pid, &status, 0) == pid);

6534

g_assert_true(WIFEXITED(status));

6535

g_assert_cmpint(WEXITSTATUS(status), ==, EXIT_SUCCESS);

6536

}

6537

6538

static void test_run_queue_zeroes_next_run(__attribute__((unused))

6539

test_fixture *fixture,

6540

__attribute__((unused))

6541

gconstpointer user_data){

6542

__attribute__((cleanup(cleanup_queue)))

6543

task_queue *queue = create_queue();

6544

g_assert_nonnull(queue);

6545

queue->next_run = 1;

6546

__attribute__((cleanup(cleanup_close)))

6547

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6548

__attribute__((cleanup(string_set_clear)))

6549

string_set cancelled_filenames = {};

6550

bool quit_now = false;

6551

6552

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6553

g_assert_false(quit_now);

6554

g_assert_cmpuint((unsigned int)queue->next_run, ==, 0);

6555

}

6556

6557

static

6558

void test_run_queue_clears_cancelled_filenames(__attribute__((unused))

6559

test_fixture *fixture,

6560

__attribute__((unused))

6561

gconstpointer

6562

user_data){

6563

__attribute__((cleanup(cleanup_queue)))

6564

task_queue *queue = create_queue();

6565

g_assert_nonnull(queue);

6566

__attribute__((cleanup(string_set_clear)))

6567

string_set cancelled_filenames = {};

6568

bool quit_now = false;

6569

const char question_filename[] = "/nonexistent/question_filename";

6570

g_assert_true(string_set_add(&cancelled_filenames,

6571

question_filename));

6572

6573

g_assert_true(add_to_queue(queue,

6574

(task_context){ .func=dummy_func }));

6575

6576

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6577

g_assert_false(quit_now);

6578

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6579

g_assert_false(string_set_contains(cancelled_filenames,

6580

question_filename));

6581

}

6582

6583

static

6584

void test_run_queue_skips_cancelled_filenames(__attribute__((unused))

6585

test_fixture *fixture,

6586

__attribute__((unused))

6587

gconstpointer

6588

user_data){

6589

__attribute__((cleanup(cleanup_queue)))

6590

task_queue *queue = create_queue();

6591

g_assert_nonnull(queue);

6592

__attribute__((cleanup(string_set_clear)))

6593

string_set cancelled_filenames = {};

6594

bool quit_now = false;

6595

int pipefds[2];

6596

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

6597

__attribute__((cleanup(cleanup_close)))

6598

const int read_pipe = pipefds[0];

6599

g_assert_cmpint(close(pipefds[1]), ==, 0);

6600

const char question_filename[] = "/nonexistent/question_filename";

6601

g_assert_true(string_set_add(&cancelled_filenames,

6602

question_filename));

6603

__attribute__((nonnull))

6604

void quit_func(const task_context task,

6605

__attribute__((unused)) task_queue *const q){

6606

g_assert_nonnull(task.quit_now);

6607

*task.quit_now = true;

6608

}

6609

task_context task = {

6610

.func=quit_func,

6611

.question_filename=strdup(question_filename),

6612

.quit_now=&quit_now,

6613

.fd=read_pipe,

6614

};

6615

g_assert_nonnull(task.question_filename);

6616

6617

g_assert_true(add_to_queue(queue, task));

6618

6619

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6620

g_assert_false(quit_now);

6621

6622

/* read_pipe should be closed already */

6623

errno = 0;

6624

bool read_pipe_closed = (close(read_pipe) == -1);

6625

read_pipe_closed &= (errno == EBADF);

6626

g_assert_true(read_pipe_closed);

6627

}

6628

6629

static void test_run_queue_one_task(__attribute__((unused))

6630

test_fixture *fixture,

6631

__attribute__((unused))

6632

gconstpointer user_data){

6633

__attribute__((cleanup(cleanup_queue)))

6634

task_queue *queue = create_queue();

6635

g_assert_nonnull(queue);

6636

__attribute__((cleanup(string_set_clear)))

6637

string_set cancelled_filenames = {};

6638

bool quit_now = false;

6639

6640

__attribute__((nonnull))

6641

void next_run_func(__attribute__((unused))

6642

const task_context task,

6643

task_queue *const q){

6644

q->next_run = 1;

6645

}

6646

6647

task_context task = {

6648

.func=next_run_func,

6649

};

6650

g_assert_true(add_to_queue(queue, task));

6651

6652

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6653

g_assert_cmpuint((unsigned int)(queue->next_run), ==, 1);

6654

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6655

}

6656

6657

static void test_run_queue_two_tasks(__attribute__((unused))

6658

test_fixture *fixture,

6659

__attribute__((unused))

6660

gconstpointer user_data){

6661

__attribute__((cleanup(cleanup_queue)))

6662

task_queue *queue = create_queue();

6663

g_assert_nonnull(queue);

6664

queue->next_run = 1;

6665

__attribute__((cleanup(string_set_clear)))

6666

string_set cancelled_filenames = {};

6667

bool quit_now = false;

6668

bool mandos_client_exited = false;

6669

6670

__attribute__((nonnull))

6671

void next_run_func(__attribute__((unused))

6672

const task_context task,

6673

task_queue *const q){

6674

q->next_run = 1;

6675

}

6676

6677

__attribute__((nonnull))

6678

void exited_func(const task_context task,

6679

__attribute__((unused)) task_queue *const q){

6680

*task.mandos_client_exited = true;

6681

}

6682

6683

task_context task1 = {

6684

.func=next_run_func,

6685

};

6686

g_assert_true(add_to_queue(queue, task1));

6687

6688

task_context task2 = {

6689

.func=exited_func,

6690

.mandos_client_exited=&mandos_client_exited,

6691

};

6692

g_assert_true(add_to_queue(queue, task2));

6693

6694

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6695

g_assert_false(quit_now);

6696

g_assert_cmpuint((unsigned int)(queue->next_run), ==, 1);

6697

g_assert_true(mandos_client_exited);

6698

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6699

}

6700

6701

static void test_run_queue_two_tasks_quit(__attribute__((unused))

6702

test_fixture *fixture,

6703

__attribute__((unused))

6704

gconstpointer user_data){

6705

__attribute__((cleanup(cleanup_queue)))

6706

task_queue *queue = create_queue();

6707

g_assert_nonnull(queue);

6708

__attribute__((cleanup(string_set_clear)))

6709

string_set cancelled_filenames = {};

6710

bool quit_now = false;

6711

bool mandos_client_exited = false;

6712

bool password_is_read = false;

6713

6714

__attribute__((nonnull))

6715

void set_exited_func(const task_context task,

6716

__attribute__((unused)) task_queue *const q){

6717

*task.mandos_client_exited = true;

6718

*task.quit_now = true;

6719

}

6720

task_context task1 = {

6721

.func=set_exited_func,

6722

.quit_now=&quit_now,

6723

.mandos_client_exited=&mandos_client_exited,

6724

};

6725

g_assert_true(add_to_queue(queue, task1));

6726

6727

__attribute__((nonnull))

6728

void set_read_func(const task_context task,

6729

__attribute__((unused)) task_queue *const q){

6730

*task.quit_now = true;

6731

*task.password_is_read = true;

6732

}

6733

task_context task2 = {

6734

.func=set_read_func,

6735

.quit_now=&quit_now,

6736

.password_is_read=&password_is_read,

6737

};

6738

g_assert_true(add_to_queue(queue, task2));

6739

6740

g_assert_false(run_queue(&queue, &cancelled_filenames, &quit_now));

6741

g_assert_true(quit_now);

6742

g_assert_true(mandos_client_exited xor password_is_read);

6743

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6744

}

6745

6746

static void test_run_queue_two_tasks_cleanup(__attribute__((unused))

6747

test_fixture *fixture,

6748

__attribute__((unused))

6749

gconstpointer user_data){

6750

__attribute__((cleanup(cleanup_queue)))

6751

task_queue *queue = create_queue();

6752

g_assert_nonnull(queue);

6753

__attribute__((cleanup(string_set_clear)))

6754

string_set cancelled_filenames = {};

6755

int pipefds[2];

6756

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

6757

__attribute__((cleanup(cleanup_close)))

6758

const int read_pipe = pipefds[0];

6759

__attribute__((cleanup(cleanup_close)))

6760

const int write_pipe = pipefds[1];

6761

bool quit_now = false;

6762

6763

__attribute__((nonnull))

6764

void read_func(const task_context task,

6765

__attribute__((unused)) task_queue *const q){

6766

*task.quit_now = true;

6767

}

6768

task_context task1 = {

6769

.func=read_func,

6770

.quit_now=&quit_now,

6771

.fd=read_pipe,

6772

};

6773

g_assert_true(add_to_queue(queue, task1));

6774

6775

__attribute__((nonnull))

6776

void write_func(const task_context task,

6777

__attribute__((unused)) task_queue *const q){

6778

*task.quit_now = true;

6779

}

6780

task_context task2 = {

6781

.func=write_func,

6782

.quit_now=&quit_now,

6783

.fd=write_pipe,

6784

};

6785

g_assert_true(add_to_queue(queue, task2));

6786

6787

g_assert_false(run_queue(&queue, &cancelled_filenames, &quit_now));

6788

g_assert_true(quit_now);

6789

6790

/* Either read_pipe or write_pipe should be closed already */

6791

errno = 0;

6792

bool close_read_pipe = (close(read_pipe) == -1);

6793

close_read_pipe &= (errno == EBADF);

6794

errno = 0;

6795

bool close_write_pipe = (close(write_pipe) == -1);

6796

close_write_pipe &= (errno == EBADF);

6797

g_assert_true(close_read_pipe xor close_write_pipe);

6798

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6799

}

6800

6801

static void test_setup_signal_handler(__attribute__((unused))

6802

test_fixture *fixture,

6803

__attribute__((unused))

6804

gconstpointer user_data){

6805

/* Save current SIGCHLD action, whatever it is */

6806

struct sigaction expected_sigchld_action;

6807

g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),

6808

==, 0);

6809

6810

/* Act; i.e. run the setup_signal_handler() function */

6811

struct sigaction actual_old_sigchld_action;

6812

g_assert_true(setup_signal_handler(&actual_old_sigchld_action));

6813

6814

/* Check that the function correctly set "actual_old_sigchld_action"

6815

to the same values as the previously saved

6816

"expected_sigchld_action" */

6817

/* Check member sa_handler */

6818

g_assert_true(actual_old_sigchld_action.sa_handler

6819

== expected_sigchld_action.sa_handler);

6820

/* Check member sa_mask */

6821

for(int signum = 1; signum < NSIG; signum++){

6822

const int expected_old_block_state

6823

= sigismember(&expected_sigchld_action.sa_mask, signum);

6824

g_assert_cmpint(expected_old_block_state, >=, 0);

6825

const int actual_old_block_state

6826

= sigismember(&actual_old_sigchld_action.sa_mask, signum);

6827

g_assert_cmpint(actual_old_block_state, >=, 0);

6828

g_assert_cmpint(actual_old_block_state,

6829

==, expected_old_block_state);

6830

}

6831

/* Check member sa_flags */

6832

g_assert_true((actual_old_sigchld_action.sa_flags

6833

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

6834

== (expected_sigchld_action.sa_flags

6835

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));

6836

6837

/* Retrieve the current signal handler for SIGCHLD as set by

6838

setup_signal_handler() */

6839

struct sigaction actual_new_sigchld_action;

6840

g_assert_cmpint(sigaction(SIGCHLD, NULL,

6841

&actual_new_sigchld_action), ==, 0);

6842

/* Check that the signal handler (member sa_handler) is correctly

6843

set to the "handle_sigchld" function */

6844

g_assert_true(actual_new_sigchld_action.sa_handler != SIG_DFL);

6845

g_assert_true(actual_new_sigchld_action.sa_handler != SIG_IGN);

6846

g_assert_true(actual_new_sigchld_action.sa_handler

6847

== handle_sigchld);

6848

/* Check (in member sa_mask) that at least a handful of signals are

6849

actually blocked during the signal handler */

6850

for(int signum = 1; signum < NSIG; signum++){

6851

int actual_new_block_state;

6852

switch(signum){

6853

case SIGTERM:

6854

case SIGINT:

6855

case SIGQUIT:

6856

case SIGHUP:

6857

actual_new_block_state

6858

= sigismember(&actual_new_sigchld_action.sa_mask, signum);

6859

g_assert_cmpint(actual_new_block_state, ==, 1);

6860

continue;

6861

case SIGKILL: /* non-blockable */

6862

case SIGSTOP: /* non-blockable */

6863

case SIGCHLD: /* always blocked */

6864

default:

6865

continue;

6866

}

6867

}

6868

/* Check member sa_flags */

6869

g_assert_true((actual_new_sigchld_action.sa_flags

6870

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

6871

== (SA_NOCLDSTOP | SA_RESTART));

6872

6873

/* Restore signal handler */

6874

g_assert_cmpint(sigaction(SIGCHLD, &expected_sigchld_action, NULL),

6875

==, 0);

6876

}

6877

6878

static void test_restore_signal_handler(__attribute__((unused))

6879

test_fixture *fixture,

6880

__attribute__((unused))

6881

gconstpointer user_data){

6882

/* Save current SIGCHLD action, whatever it is */

6883

struct sigaction expected_sigchld_action;

6884

g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),

6885

==, 0);

6886

/* Since we haven't established a signal handler yet, there should

6887

not be one established. But another test may have relied on

6888

restore_signal_handler() to restore the signal handler, and if

6889

restore_signal_handler() is buggy (which we should be prepared

6890

for in this test) the signal handler may not have been restored

6891

properly; check for this: */

6892

g_assert_true(expected_sigchld_action.sa_handler != handle_sigchld);

6893

6894

/* Establish a signal handler */

6895

struct sigaction sigchld_action = {

6896

.sa_handler=handle_sigchld,

6897

.sa_flags=SA_RESTART | SA_NOCLDSTOP,

6898

};

6899

g_assert_cmpint(sigfillset(&sigchld_action.sa_mask), ==, 0);

6900

g_assert_cmpint(sigaction(SIGCHLD, &sigchld_action, NULL), ==, 0);

6901

6902

/* Act; i.e. run the restore_signal_handler() function */

6903

g_assert_true(restore_signal_handler(&expected_sigchld_action));

6904

6905

/* Retrieve the restored signal handler data */

6906

struct sigaction actual_restored_sigchld_action;

6907

g_assert_cmpint(sigaction(SIGCHLD, NULL,

6908

&actual_restored_sigchld_action), ==, 0);

6909

6910

/* Check that the function correctly restored the signal action, as

6911

saved in "actual_restored_sigchld_action", to the same values as

6912

the previously saved "expected_sigchld_action" */

6913

/* Check member sa_handler */

6914

g_assert_true(actual_restored_sigchld_action.sa_handler

6915

== expected_sigchld_action.sa_handler);

6916

/* Check member sa_mask */

6917

for(int signum = 1; signum < NSIG; signum++){

6918

const int expected_old_block_state

6919

= sigismember(&expected_sigchld_action.sa_mask, signum);

6920

g_assert_cmpint(expected_old_block_state, >=, 0);

6921

const int actual_restored_block_state

6922

= sigismember(&actual_restored_sigchld_action.sa_mask, signum);

6923

g_assert_cmpint(actual_restored_block_state, >=, 0);

6924

g_assert_cmpint(actual_restored_block_state,

6925

==, expected_old_block_state);

6926

}

6927

/* Check member sa_flags */

6928

g_assert_true((actual_restored_sigchld_action.sa_flags

6929

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

6930

== (expected_sigchld_action.sa_flags

6931

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));

6932

}

6933

6934

static void test_block_sigchld(__attribute__((unused))

6935

test_fixture *fixture,

6936

__attribute__((unused))

6937

gconstpointer user_data){

6938

/* Save original signal mask */

6939

sigset_t expected_sigmask;

6940

g_assert_cmpint(pthread_sigmask(-1, NULL, &expected_sigmask),

6941

==, 0);

6942

6943

/* Make sure SIGCHLD is unblocked for this test */

6944

sigset_t sigchld_sigmask;

6945

g_assert_cmpint(sigemptyset(&sigchld_sigmask), ==, 0);

6946

g_assert_cmpint(sigaddset(&sigchld_sigmask, SIGCHLD), ==, 0);

6947

g_assert_cmpint(pthread_sigmask(SIG_UNBLOCK, &sigchld_sigmask,

6948

NULL), ==, 0);

6949

6950

/* Act; i.e. run the block_sigchld() function */

6951

sigset_t actual_old_sigmask;

6952

g_assert_true(block_sigchld(&actual_old_sigmask));

6953

6954

/* Check the actual_old_sigmask; it should be the same as the

6955

previously saved signal mask "expected_sigmask". */

6956

for(int signum = 1; signum < NSIG; signum++){

6957

const int expected_old_block_state

6958

= sigismember(&expected_sigmask, signum);

6959

g_assert_cmpint(expected_old_block_state, >=, 0);

6960

const int actual_old_block_state

6961

= sigismember(&actual_old_sigmask, signum);

6962

g_assert_cmpint(actual_old_block_state, >=, 0);

6963

g_assert_cmpint(actual_old_block_state,

6964

==, expected_old_block_state);

6965

}

6966

6967

/* Retrieve the newly set signal mask */

6968

sigset_t actual_sigmask;

6969

g_assert_cmpint(pthread_sigmask(-1, NULL, &actual_sigmask), ==, 0);

6970

6971

/* SIGCHLD should be blocked */

6972

g_assert_cmpint(sigismember(&actual_sigmask, SIGCHLD), ==, 1);

6973

6974

/* Restore signal mask */

6975

g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &expected_sigmask,

6976

NULL), ==, 0);

6977

}

6978

6979

static void test_restore_sigmask(__attribute__((unused))

6980

test_fixture *fixture,

6981

__attribute__((unused))

6982

gconstpointer user_data){

6983

/* Save original signal mask */

6984

sigset_t orig_sigmask;

6985

g_assert_cmpint(pthread_sigmask(-1, NULL, &orig_sigmask), ==, 0);

6986

6987

/* Make sure SIGCHLD is blocked for this test */

6988

sigset_t sigchld_sigmask;

6989

g_assert_cmpint(sigemptyset(&sigchld_sigmask), ==, 0);

6990

g_assert_cmpint(sigaddset(&sigchld_sigmask, SIGCHLD), ==, 0);

6991

g_assert_cmpint(pthread_sigmask(SIG_BLOCK, &sigchld_sigmask,

6992

NULL), ==, 0);

6993

6994

/* Act; i.e. run the restore_sigmask() function */

6995

g_assert_true(restore_sigmask(&orig_sigmask));

6996

6997

/* Retrieve the newly restored signal mask */

6998

sigset_t restored_sigmask;

6999

g_assert_cmpint(pthread_sigmask(-1, NULL, &restored_sigmask),

7000

==, 0);

7001

7002

/* Check the restored_sigmask; it should be the same as the

7003

previously saved signal mask "orig_sigmask". */

7004

for(int signum = 1; signum < NSIG; signum++){

7005

const int orig_block_state = sigismember(&orig_sigmask, signum);

7006

g_assert_cmpint(orig_block_state, >=, 0);

7007

const int restored_block_state = sigismember(&restored_sigmask,

7008

signum);

7009

g_assert_cmpint(restored_block_state, >=, 0);

7010

g_assert_cmpint(restored_block_state, ==, orig_block_state);

7011

}

7012

7013

/* Restore signal mask */

7014

g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &orig_sigmask,

7015

NULL), ==, 0);

7016

}

7017

7018

static void test_parse_arguments_noargs(__attribute__((unused))

7019

test_fixture *fixture,

7020

__attribute__((unused))

7021

gconstpointer user_data){

7022

char *argv[] = {

7023

strdup("prgname"),

7024

NULL };

7025

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7026

7027

char *agent_directory = NULL;

7028

char *helper_directory = NULL;

7029

uid_t user = 0;

7030

gid_t group = 0;

7031

char *mandos_argz = NULL;

7032

size_t mandos_argz_length = 0;

7033

7034

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7035

&helper_directory, &user, &group,

7036

&mandos_argz, &mandos_argz_length));

7037

g_assert_null(agent_directory);

7038

g_assert_null(helper_directory);

7039

g_assert_true(user == 0);

7040

g_assert_true(group == 0);

7041

g_assert_null(mandos_argz);

7042

g_assert_true(mandos_argz_length == 0);

7043

7044

for(char **arg = argv; *arg != NULL; arg++){

7045

free(*arg);

7046

}

7047

}

7048

7049

__attribute__((nonnull))

7050

static bool parse_arguments_devnull(int argc, char *argv[],

7051

const bool exit_failure,

7052

char **agent_directory,

7053

char **helper_directory,

7054

uid_t *const user,

7055

gid_t *const group,

7056

char **mandos_argz,

7057

size_t *mandos_argz_length){

7058

7059

FILE *real_stderr = stderr;

7060

FILE *devnull = fopen("/dev/null", "we");

7061

g_assert_nonnull(devnull);

7062

stderr = devnull;

7063

7064

const bool ret = parse_arguments(argc, argv, exit_failure,

7065

agent_directory,

7066

helper_directory, user, group,

7067

mandos_argz, mandos_argz_length);

7068

const error_t saved_errno = errno;

7069

7070

stderr = real_stderr;

7071

g_assert_cmpint(fclose(devnull), ==, 0);

7072

7073

errno = saved_errno;

7074

7075

return ret;

7076

}

7077

7078

static void test_parse_arguments_invalid(__attribute__((unused))

7079

test_fixture *fixture,

7080

__attribute__((unused))

7081

gconstpointer user_data){

7082

char *argv[] = {

7083

strdup("prgname"),

7084

strdup("--invalid"),

7085

NULL };

7086

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7087

7088

char *agent_directory = NULL;

7089

char *helper_directory = NULL;

7090

uid_t user = 0;

7091

gid_t group = 0;

7092

char *mandos_argz = NULL;

7093

size_t mandos_argz_length = 0;

7094

7095

g_assert_false(parse_arguments_devnull(argc, argv, false,

7096

&agent_directory,

7097

&helper_directory, &user,

7098

&group, &mandos_argz,

7099

&mandos_argz_length));

7100

7101

g_assert_true(errno == EINVAL);

7102

g_assert_null(agent_directory);

7103

g_assert_null(helper_directory);

7104

g_assert_null(mandos_argz);

7105

g_assert_true(mandos_argz_length == 0);

7106

7107

for(char **arg = argv; *arg != NULL; arg++){

7108

free(*arg);

7109

}

7110

}

7111

7112

static void test_parse_arguments_long_dir(__attribute__((unused))

7113

test_fixture *fixture,

7114

__attribute__((unused))

7115

gconstpointer user_data){

7116

char *argv[] = {

7117

strdup("prgname"),

7118

strdup("--agent-directory"),

7119

strdup("/tmp"),

7120

NULL };

7121

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7122

7123

__attribute__((cleanup(cleanup_string)))

7124

char *agent_directory = NULL;

7125

char *helper_directory = NULL;

7126

uid_t user = 0;

7127

gid_t group = 0;

7128

__attribute__((cleanup(cleanup_string)))

7129

char *mandos_argz = NULL;

7130

size_t mandos_argz_length = 0;

7131

7132

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7133

&helper_directory, &user, &group,

7134

&mandos_argz, &mandos_argz_length));

7135

7136

g_assert_cmpstr(agent_directory, ==, "/tmp");

7137

g_assert_null(helper_directory);

7138

g_assert_true(user == 0);

7139

g_assert_true(group == 0);

7140

g_assert_null(mandos_argz);

7141

g_assert_true(mandos_argz_length == 0);

7142

7143

for(char **arg = argv; *arg != NULL; arg++){

7144

free(*arg);

7145

}

7146

}

7147

7148

static void test_parse_arguments_short_dir(__attribute__((unused))

7149

test_fixture *fixture,

7150

__attribute__((unused))

7151

gconstpointer user_data){

7152

char *argv[] = {

7153

strdup("prgname"),

7154

strdup("-d"),

7155

strdup("/tmp"),

7156

NULL };

7157

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7158

7159

__attribute__((cleanup(cleanup_string)))

7160

char *agent_directory = NULL;

7161

char *helper_directory = NULL;

7162

uid_t user = 0;

7163

gid_t group = 0;

7164

__attribute__((cleanup(cleanup_string)))

7165

char *mandos_argz = NULL;

7166

size_t mandos_argz_length = 0;

7167

7168

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7169

&helper_directory, &user, &group,

7170

&mandos_argz, &mandos_argz_length));

7171

7172

g_assert_cmpstr(agent_directory, ==, "/tmp");

7173

g_assert_null(helper_directory);

7174

g_assert_true(user == 0);

7175

g_assert_true(group == 0);

7176

g_assert_null(mandos_argz);

7177

g_assert_true(mandos_argz_length == 0);

7178

7179

for(char **arg = argv; *arg != NULL; arg++){

7180

free(*arg);

7181

}

7182

}

7183

7184

static

7185

void test_parse_arguments_helper_directory(__attribute__((unused))

7186

test_fixture *fixture,

7187

__attribute__((unused))

7188

gconstpointer user_data){

7189

char *argv[] = {

7190

strdup("prgname"),

7191

strdup("--helper-directory"),

7192

strdup("/tmp"),

7193

NULL };

7194

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7195

7196

char *agent_directory = NULL;

7197

__attribute__((cleanup(cleanup_string)))

7198

char *helper_directory = NULL;

7199

uid_t user = 0;

7200

gid_t group = 0;

7201

__attribute__((cleanup(cleanup_string)))

7202

char *mandos_argz = NULL;

7203

size_t mandos_argz_length = 0;

7204

7205

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7206

&helper_directory, &user, &group,

7207

&mandos_argz, &mandos_argz_length));

7208

7209

g_assert_cmpstr(helper_directory, ==, "/tmp");

7210

g_assert_null(agent_directory);

7211

g_assert_true(user == 0);

7212

g_assert_true(group == 0);

7213

g_assert_null(mandos_argz);

7214

g_assert_true(mandos_argz_length == 0);

7215

7216

for(char **arg = argv; *arg != NULL; arg++){

7217

free(*arg);

7218

}

7219

}

7220

7221

static

7222

void test_parse_arguments_plugin_helper_dir(__attribute__((unused))

7223

test_fixture *fixture,

7224

__attribute__((unused))

7225

gconstpointer user_data){

7226

char *argv[] = {

7227

strdup("prgname"),

7228

strdup("--plugin-helper-dir"),

7229

strdup("/tmp"),

7230

NULL };

7231

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7232

7233

char *agent_directory = NULL;

7234

__attribute__((cleanup(cleanup_string)))

7235

char *helper_directory = NULL;

7236

uid_t user = 0;

7237

gid_t group = 0;

7238

__attribute__((cleanup(cleanup_string)))

7239

char *mandos_argz = NULL;

7240

size_t mandos_argz_length = 0;

7241

7242

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7243

&helper_directory, &user, &group,

7244

&mandos_argz, &mandos_argz_length));

7245

7246

g_assert_cmpstr(helper_directory, ==, "/tmp");

7247

g_assert_null(agent_directory);

7248

g_assert_true(user == 0);

7249

g_assert_true(group == 0);

7250

g_assert_null(mandos_argz);

7251

g_assert_true(mandos_argz_length == 0);

7252

7253

for(char **arg = argv; *arg != NULL; arg++){

7254

free(*arg);

7255

}

7256

}

7257

7258

static void test_parse_arguments_user(__attribute__((unused))

7259

test_fixture *fixture,

7260

__attribute__((unused))

7261

gconstpointer user_data){

7262

char *argv[] = {

7263

strdup("prgname"),

7264

strdup("--user"),

7265

strdup("1000"),

7266

NULL };

7267

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7268

7269

char *agent_directory = NULL;

7270

__attribute__((cleanup(cleanup_string)))

7271

char *helper_directory = NULL;

7272

uid_t user = 0;

7273

gid_t group = 0;

7274

__attribute__((cleanup(cleanup_string)))

7275

char *mandos_argz = NULL;

7276

size_t mandos_argz_length = 0;

7277

7278

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7279

&helper_directory, &user, &group,

7280

&mandos_argz, &mandos_argz_length));

7281

7282

g_assert_null(helper_directory);

7283

g_assert_null(agent_directory);

7284

g_assert_cmpuint((unsigned int)user, ==, 1000);

7285

g_assert_true(group == 0);

7286

g_assert_null(mandos_argz);

7287

g_assert_true(mandos_argz_length == 0);

7288

7289

for(char **arg = argv; *arg != NULL; arg++){

7290

free(*arg);

7291

}

7292

}

7293

7294

static void test_parse_arguments_user_invalid(__attribute__((unused))

7295

test_fixture *fixture,

7296

__attribute__((unused))

7297

gconstpointer

7298

user_data){

7299

char *argv[] = {

7300

strdup("prgname"),

7301

strdup("--user"),

7302

strdup("invalid"),

7303

NULL };

7304

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7305

7306

char *agent_directory = NULL;

7307

__attribute__((cleanup(cleanup_string)))

7308

char *helper_directory = NULL;

7309

uid_t user = 0;

7310

gid_t group = 0;

7311

__attribute__((cleanup(cleanup_string)))

7312

char *mandos_argz = NULL;

7313

size_t mandos_argz_length = 0;

7314

7315

g_assert_false(parse_arguments_devnull(argc, argv, false,

7316

&agent_directory,

7317

&helper_directory, &user,

7318

&group, &mandos_argz,

7319

&mandos_argz_length));

7320

7321

g_assert_null(helper_directory);

7322

g_assert_null(agent_directory);

7323

g_assert_cmpuint((unsigned int)user, ==, 0);

7324

g_assert_true(group == 0);

7325

g_assert_null(mandos_argz);

7326

g_assert_true(mandos_argz_length == 0);

7327

7328

for(char **arg = argv; *arg != NULL; arg++){

7329

free(*arg);

7330

}

7331

}

7332

7333

static

7334

void test_parse_arguments_user_zero_invalid(__attribute__((unused))

7335

test_fixture *fixture,

7336

__attribute__((unused))

7337

gconstpointer user_data){

7338

char *argv[] = {

7339

strdup("prgname"),

7340

strdup("--user"),

7341

strdup("0"),

7342

NULL };

7343

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7344

7345

char *agent_directory = NULL;

7346

__attribute__((cleanup(cleanup_string)))

7347

char *helper_directory = NULL;

7348

uid_t user = 0;

7349

gid_t group = 0;

7350

__attribute__((cleanup(cleanup_string)))

7351

char *mandos_argz = NULL;

7352

size_t mandos_argz_length = 0;

7353

7354

g_assert_false(parse_arguments_devnull(argc, argv, false,

7355

&agent_directory,

7356

&helper_directory, &user,

7357

&group, &mandos_argz,

7358

&mandos_argz_length));

7359

7360

g_assert_null(helper_directory);

7361

g_assert_null(agent_directory);

7362

g_assert_cmpuint((unsigned int)user, ==, 0);

7363

g_assert_true(group == 0);

7364

g_assert_null(mandos_argz);

7365

g_assert_true(mandos_argz_length == 0);

7366

7367

for(char **arg = argv; *arg != NULL; arg++){

7368

free(*arg);

7369

}

7370

}

7371

7372

static void test_parse_arguments_group(__attribute__((unused))

7373

test_fixture *fixture,

7374

__attribute__((unused))

7375

gconstpointer user_data){

7376

char *argv[] = {

7377

strdup("prgname"),

7378

strdup("--group"),

7379

strdup("1000"),

7380

NULL };

7381

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7382

7383

char *agent_directory = NULL;

7384

__attribute__((cleanup(cleanup_string)))

7385

char *helper_directory = NULL;

7386

uid_t user = 0;

7387

gid_t group = 0;

7388

__attribute__((cleanup(cleanup_string)))

7389

char *mandos_argz = NULL;

7390

size_t mandos_argz_length = 0;

7391

7392

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7393

&helper_directory, &user, &group,

7394

&mandos_argz, &mandos_argz_length));

7395

7396

g_assert_null(helper_directory);

7397

g_assert_null(agent_directory);

7398

g_assert_true(user == 0);

7399

g_assert_cmpuint((unsigned int)group, ==, 1000);

7400

g_assert_null(mandos_argz);

7401

g_assert_true(mandos_argz_length == 0);

7402

7403

for(char **arg = argv; *arg != NULL; arg++){

7404

free(*arg);

7405

}

7406

}

7407

7408

static void test_parse_arguments_group_invalid(__attribute__((unused))

7409

test_fixture *fixture,

7410

__attribute__((unused))

7411

gconstpointer

7412

user_data){

7413

char *argv[] = {

7414

strdup("prgname"),

7415

strdup("--group"),

7416

strdup("invalid"),

7417

NULL };

7418

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7419

7420

char *agent_directory = NULL;

7421

__attribute__((cleanup(cleanup_string)))

7422

char *helper_directory = NULL;

7423

uid_t user = 0;

7424

gid_t group = 0;

7425

__attribute__((cleanup(cleanup_string)))

7426

char *mandos_argz = NULL;

7427

size_t mandos_argz_length = 0;

7428

7429

g_assert_false(parse_arguments_devnull(argc, argv, false,

7430

&agent_directory,

7431

&helper_directory, &user,

7432

&group, &mandos_argz,

7433

&mandos_argz_length));

7434

7435

g_assert_null(helper_directory);

7436

g_assert_null(agent_directory);

7437

g_assert_true(user == 0);

7438

g_assert_true(group == 0);

7439

g_assert_null(mandos_argz);

7440

g_assert_true(mandos_argz_length == 0);

7441

7442

for(char **arg = argv; *arg != NULL; arg++){

7443

free(*arg);

7444

}

7445

}

7446

7447

static

7448

void test_parse_arguments_group_zero_invalid(__attribute__((unused))

7449

test_fixture *fixture,

7450

__attribute__((unused))

7451

gconstpointer user_data){

7452

char *argv[] = {

7453

strdup("prgname"),

7454

strdup("--group"),

7455

strdup("0"),

7456

NULL };

7457

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7458

7459

char *agent_directory = NULL;

7460

__attribute__((cleanup(cleanup_string)))

7461

char *helper_directory = NULL;

7462

uid_t user = 0;

7463

gid_t group = 0;

7464

__attribute__((cleanup(cleanup_string)))

7465

char *mandos_argz = NULL;

7466

size_t mandos_argz_length = 0;

7467

7468

g_assert_false(parse_arguments_devnull(argc, argv, false,

7469

&agent_directory,

7470

&helper_directory, &user,

7471

&group, &mandos_argz,

7472

&mandos_argz_length));

7473

7474

g_assert_null(helper_directory);

7475

g_assert_null(agent_directory);

7476

g_assert_cmpuint((unsigned int)group, ==, 0);

7477

g_assert_true(group == 0);

7478

g_assert_null(mandos_argz);

7479

g_assert_true(mandos_argz_length == 0);

7480

7481

for(char **arg = argv; *arg != NULL; arg++){

7482

free(*arg);

7483

}

7484

}

7485

7486

static void test_parse_arguments_mandos_noargs(__attribute__((unused))

7487

test_fixture *fixture,

7488

__attribute__((unused))

7489

gconstpointer

7490

user_data){

7491

char *argv[] = {

7492

strdup("prgname"),

7493

strdup("mandos-client"),

7494

NULL };

7495

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7496

7497

__attribute__((cleanup(cleanup_string)))

7498

char *agent_directory = NULL;

7499

__attribute__((cleanup(cleanup_string)))

7500

char *helper_directory = NULL;

7501

uid_t user = 0;

7502

gid_t group = 0;

7503

__attribute__((cleanup(cleanup_string)))

7504

char *mandos_argz = NULL;

7505

size_t mandos_argz_length = 0;

7506

7507

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7508

&helper_directory, &user, &group,

7509

&mandos_argz, &mandos_argz_length));

7510

7511

g_assert_null(agent_directory);

7512

g_assert_null(helper_directory);

7513

g_assert_true(user == 0);

7514

g_assert_true(group == 0);

7515

g_assert_cmpstr(mandos_argz, ==, "mandos-client");

7516

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7517

mandos_argz_length),

7518

==, 1);

7519

7520

for(char **arg = argv; *arg != NULL; arg++){

7521

free(*arg);

7522

}

7523

}

7524

7525

static void test_parse_arguments_mandos_args(__attribute__((unused))

7526

test_fixture *fixture,

7527

__attribute__((unused))

7528

gconstpointer user_data){

7529

char *argv[] = {

7530

strdup("prgname"),

7531

strdup("mandos-client"),

7532

strdup("one"),

7533

strdup("two"),

7534

strdup("three"),

7535

NULL };

7536

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7537

7538

__attribute__((cleanup(cleanup_string)))

7539

char *agent_directory = NULL;

7540

__attribute__((cleanup(cleanup_string)))

7541

char *helper_directory = NULL;

7542

uid_t user = 0;

7543

gid_t group = 0;

7544

__attribute__((cleanup(cleanup_string)))

7545

char *mandos_argz = NULL;

7546

size_t mandos_argz_length = 0;

7547

7548

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7549

&helper_directory, &user, &group,

7550

&mandos_argz, &mandos_argz_length));

7551

7552

g_assert_null(agent_directory);

7553

g_assert_null(helper_directory);

7554

g_assert_true(user == 0);

7555

g_assert_true(group == 0);

7556

char *marg = mandos_argz;

7557

g_assert_cmpstr(marg, ==, "mandos-client");

7558

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7559

g_assert_cmpstr(marg, ==, "one");

7560

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7561

g_assert_cmpstr(marg, ==, "two");

7562

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7563

g_assert_cmpstr(marg, ==, "three");

7564

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7565

mandos_argz_length),

7566

==, 4);

7567

7568

for(char **arg = argv; *arg != NULL; arg++){

7569

free(*arg);

7570

}

7571

}

7572

7573

static void test_parse_arguments_all_args(__attribute__((unused))

7574

test_fixture *fixture,

7575

__attribute__((unused))

7576

gconstpointer user_data){

7577

char *argv[] = {

7578

strdup("prgname"),

7579

strdup("--agent-directory"),

7580

strdup("/tmp"),

7581

strdup("--helper-directory"),

7582

strdup("/var/tmp"),

7583

strdup("--user"),

7584

strdup("1"),

7585

strdup("--group"),

7586

strdup("2"),

7587

strdup("mandos-client"),

7588

strdup("one"),

7589

strdup("two"),

7590

strdup("three"),

7591

NULL };

7592

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7593

7594

__attribute__((cleanup(cleanup_string)))

7595

char *agent_directory = NULL;

7596

__attribute__((cleanup(cleanup_string)))

7597

char *helper_directory = NULL;

7598

uid_t user = 0;

7599

gid_t group = 0;

7600

__attribute__((cleanup(cleanup_string)))

7601

char *mandos_argz = NULL;

7602

size_t mandos_argz_length = 0;

7603

7604

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7605

&helper_directory, &user, &group,

7606

&mandos_argz, &mandos_argz_length));

7607

7608

g_assert_cmpstr(agent_directory, ==, "/tmp");

7609

g_assert_cmpstr(helper_directory, ==, "/var/tmp");

7610

g_assert_true(user == 1);

7611

g_assert_true(group == 2);

7612

char *marg = mandos_argz;

7613

g_assert_cmpstr(marg, ==, "mandos-client");

7614

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7615

g_assert_cmpstr(marg, ==, "one");

7616

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7617

g_assert_cmpstr(marg, ==, "two");

7618

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7619

g_assert_cmpstr(marg, ==, "three");

7620

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7621

mandos_argz_length),

7622

==, 4);

7623

7624

for(char **arg = argv; *arg != NULL; arg++){

7625

free(*arg);

7626

}

7627

}

7628

7629

static void test_parse_arguments_mixed(__attribute__((unused))

7630

test_fixture *fixture,

7631

__attribute__((unused))

7632

gconstpointer user_data){

7633

char *argv[] = {

7634

strdup("prgname"),

7635

strdup("mandos-client"),

7636

strdup("--user"),

7637

strdup("1"),

7638

strdup("one"),

7639

strdup("--agent-directory"),

7640

strdup("/tmp"),

7641

strdup("two"),

7642

strdup("three"),

7643

strdup("--helper-directory=/var/tmp"),

7644

NULL };

7645

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7646

7647

__attribute__((cleanup(cleanup_string)))

7648

char *agent_directory = NULL;

7649

__attribute__((cleanup(cleanup_string)))

7650

char *helper_directory = NULL;

7651

uid_t user = 0;

7652

gid_t group = 0;

7653

__attribute__((cleanup(cleanup_string)))

7654

char *mandos_argz = NULL;

7655

size_t mandos_argz_length = 0;

7656

7657

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7658

&helper_directory, &user, &group,

7659

&mandos_argz, &mandos_argz_length));

7660

7661

g_assert_cmpstr(agent_directory, ==, "/tmp");

7662

g_assert_cmpstr(helper_directory, ==, "/var/tmp");

7663

g_assert_true(user == 1);

7664

g_assert_true(group == 0);

7665

char *marg = mandos_argz;

7666

g_assert_cmpstr(marg, ==, "mandos-client");

7667

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7668

g_assert_cmpstr(marg, ==, "one");

7669

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7670

g_assert_cmpstr(marg, ==, "two");

7671

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7672

g_assert_cmpstr(marg, ==, "three");

7673

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7674

mandos_argz_length),

7675

==, 4);

7676

7677

for(char **arg = argv; *arg != NULL; arg++){

7678

free(*arg);

7679

}

7680

}

7681

7682

/* End of tests section */

7683

7684

/* Test boilerplate section; New tests should be added to the test

7685

suite definition here, in the "run_tests" function.

7686

7687

Finally, this section also contains the should_only_run_tests()

7688

function used by main() for deciding if tests should be run or to

7689

start normally. */

7690

7691

__attribute__((cold))

7692

static bool run_tests(int argc, char *argv[]){

7693

g_test_init(&argc, &argv, NULL);

7694

7695

/* A macro to add a test with no setup or teardown functions */

7696

#define test_add(testpath, testfunc) \

7697

do { \

7698

g_test_add((testpath), test_fixture, NULL, NULL, \

7699

(testfunc), NULL); \

7700

} while(false)

7701

7702

/* Test the signal-related functions first, since some other tests

7703

depend on these functions in their setups and teardowns */

7704

test_add("/signal-handling/setup", test_setup_signal_handler);

7705

test_add("/signal-handling/restore", test_restore_signal_handler);

7706

test_add("/signal-handling/block", test_block_sigchld);

7707

test_add("/signal-handling/restore-sigmask", test_restore_sigmask);

7708

7709

/* Regular non-signal-related tests; these use no setups or

7710

teardowns */

7711

test_add("/parse_arguments/noargs", test_parse_arguments_noargs);

7712

test_add("/parse_arguments/invalid", test_parse_arguments_invalid);

7713

test_add("/parse_arguments/long-dir",

7714

test_parse_arguments_long_dir);

7715

test_add("/parse_arguments/short-dir",

7716

test_parse_arguments_short_dir);

7717

test_add("/parse_arguments/helper-directory",

7718

test_parse_arguments_helper_directory);

7719

test_add("/parse_arguments/plugin-helper-dir",

7720

test_parse_arguments_plugin_helper_dir);

7721

test_add("/parse_arguments/user", test_parse_arguments_user);

7722

test_add("/parse_arguments/user-invalid",

7723

test_parse_arguments_user_invalid);

7724

test_add("/parse_arguments/user-zero-invalid",

7725

test_parse_arguments_user_zero_invalid);

7726

test_add("/parse_arguments/group", test_parse_arguments_group);

7727

test_add("/parse_arguments/group-invalid",

7728

test_parse_arguments_group_invalid);

7729

test_add("/parse_arguments/group-zero-invalid",

7730

test_parse_arguments_group_zero_invalid);

7731

test_add("/parse_arguments/mandos-noargs",

7732

test_parse_arguments_mandos_noargs);

7733

test_add("/parse_arguments/mandos-args",

7734

test_parse_arguments_mandos_args);

7735

test_add("/parse_arguments/all-args",

7736

test_parse_arguments_all_args);

7737

test_add("/parse_arguments/mixed", test_parse_arguments_mixed);

7738

test_add("/queue/create", test_create_queue);

7739

test_add("/queue/add", test_add_to_queue);

7740

test_add("/queue/has_question/empty",

7741

test_queue_has_question_empty);

7742

test_add("/queue/has_question/false",

7743

test_queue_has_question_false);

7744

test_add("/queue/has_question/true", test_queue_has_question_true);

7745

test_add("/queue/has_question/false2",

7746

test_queue_has_question_false2);

7747

test_add("/queue/has_question/true2",

7748

test_queue_has_question_true2);

7749

test_add("/buffer/cleanup", test_cleanup_buffer);

7750

test_add("/string_set/net-set-contains-nothing",

7751

test_string_set_new_set_contains_nothing);

7752

test_add("/string_set/with-added-string-contains-it",

7753

test_string_set_with_added_string_contains_it);

7754

test_add("/string_set/cleared-does-not-contain-string",

7755

test_string_set_cleared_does_not_contain_str);

7756

test_add("/string_set/swap/one-with-empty",

7757

test_string_set_swap_one_with_empty);

7758

test_add("/string_set/swap/empty-with-one",

7759

test_string_set_swap_empty_with_one);

7760

test_add("/string_set/swap/one-with-one",

7761

test_string_set_swap_one_with_one);

7762

7763

/* A macro to add a test using the setup and teardown functions */

7764

#define test_add_st(path, func) \

7765

do { \

7766

g_test_add((path), test_fixture, NULL, test_setup, (func), \

7767

test_teardown); \

7768

} while(false)

7769

7770

/* Signal-related tests; these use setups and teardowns which

7771

establish, during each test run, a signal handler for, and a

7772

signal mask blocking, the SIGCHLD signal, just like main() */

7773

test_add_st("/wait_for_event/timeout", test_wait_for_event_timeout);

7774

test_add_st("/wait_for_event/event", test_wait_for_event_event);

7775

test_add_st("/wait_for_event/sigchld", test_wait_for_event_sigchld);

7776

test_add_st("/run_queue/zeroes-next-run",

7777

test_run_queue_zeroes_next_run);

7778

test_add_st("/run_queue/clears-cancelled_filenames",

7779

test_run_queue_clears_cancelled_filenames);

7780

test_add_st("/run_queue/skips-cancelled-filenames",

7781

test_run_queue_skips_cancelled_filenames);

7782

test_add_st("/run_queue/one-task", test_run_queue_one_task);

7783

test_add_st("/run_queue/two-tasks", test_run_queue_two_tasks);

7784

test_add_st("/run_queue/two-tasks/quit",

7785

test_run_queue_two_tasks_quit);

7786

test_add_st("/run_queue/two-tasks-cleanup",

7787

test_run_queue_two_tasks_cleanup);

7788

test_add_st("/task-creators/start_mandos_client",

7789

test_start_mandos_client);

7790

test_add_st("/task-creators/start_mandos_client/execv",

7791

test_start_mandos_client_execv);

7792

test_add_st("/task-creators/start_mandos_client/suid/euid",

7793

test_start_mandos_client_suid_euid);

7794

test_add_st("/task-creators/start_mandos_client/suid/egid",

7795

test_start_mandos_client_suid_egid);

7796

test_add_st("/task-creators/start_mandos_client/suid/ruid",

7797

test_start_mandos_client_suid_ruid);

7798

test_add_st("/task-creators/start_mandos_client/suid/rgid",

7799

test_start_mandos_client_suid_rgid);

7800

test_add_st("/task-creators/start_mandos_client/read",

7801

test_start_mandos_client_read);

7802

test_add_st("/task-creators/start_mandos_client/helper-directory",

7803

test_start_mandos_client_helper_directory);

7804

test_add_st("/task-creators/start_mandos_client/sigmask",

7805

test_start_mandos_client_sigmask);

7806

test_add_st("/task/wait_for_mandos_client_exit/badpid",

7807

test_wait_for_mandos_client_exit_badpid);

7808

test_add_st("/task/wait_for_mandos_client_exit/noexit",

7809

test_wait_for_mandos_client_exit_noexit);

7810

test_add_st("/task/wait_for_mandos_client_exit/success",

7811

test_wait_for_mandos_client_exit_success);

7812

test_add_st("/task/wait_for_mandos_client_exit/failure",

7813

test_wait_for_mandos_client_exit_failure);

7814

test_add_st("/task/wait_for_mandos_client_exit/killed",

7815

test_wait_for_mandos_client_exit_killed);

7816

test_add_st("/task/read_mandos_client_output/readerror",

7817

test_read_mandos_client_output_readerror);

7818

test_add_st("/task/read_mandos_client_output/nodata",

7819

test_read_mandos_client_output_nodata);

7820

test_add_st("/task/read_mandos_client_output/eof",

7821

test_read_mandos_client_output_eof);

7822

test_add_st("/task/read_mandos_client_output/once",

7823

test_read_mandos_client_output_once);

7824

test_add_st("/task/read_mandos_client_output/malloc",

7825

test_read_mandos_client_output_malloc);

7826

test_add_st("/task/read_mandos_client_output/append",

7827

test_read_mandos_client_output_append);

7828

test_add_st("/task-creators/add_inotify_dir_watch",

7829

test_add_inotify_dir_watch);

7830

test_add_st("/task-creators/add_inotify_dir_watch/fail",

7831

test_add_inotify_dir_watch_fail);

7832

test_add_st("/task-creators/add_inotify_dir_watch/EAGAIN",

7833

test_add_inotify_dir_watch_EAGAIN);

7834

test_add_st("/task-creators/add_inotify_dir_watch/IN_CLOSE_WRITE",

7835

test_add_inotify_dir_watch_IN_CLOSE_WRITE);

7836

test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_TO",

7837

test_add_inotify_dir_watch_IN_MOVED_TO);

7838

test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_FROM",

7839

test_add_inotify_dir_watch_IN_MOVED_FROM);

7840

test_add_st("/task-creators/add_inotify_dir_watch/IN_DELETE",

7841

test_add_inotify_dir_watch_IN_DELETE);

7842

test_add_st("/task/read_inotify_event/readerror",

7843

test_read_inotify_event_readerror);

7844

test_add_st("/task/read_inotify_event/bad-epoll",

7845

test_read_inotify_event_bad_epoll);

7846

test_add_st("/task/read_inotify_event/nodata",

7847

test_read_inotify_event_nodata);

7848

test_add_st("/task/read_inotify_event/eof",

7849

test_read_inotify_event_eof);

7850

test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE",

7851

test_read_inotify_event_IN_CLOSE_WRITE);

7852

test_add_st("/task/read_inotify_event/IN_MOVED_TO",

7853

test_read_inotify_event_IN_MOVED_TO);

7854

test_add_st("/task/read_inotify_event/IN_MOVED_FROM",

7855

test_read_inotify_event_IN_MOVED_FROM);

7856

test_add_st("/task/read_inotify_event/IN_DELETE",

7857

test_read_inotify_event_IN_DELETE);

7858

test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE/badname",

7859

test_read_inotify_event_IN_CLOSE_WRITE_badname);

7860

test_add_st("/task/read_inotify_event/IN_MOVED_TO/badname",

7861

test_read_inotify_event_IN_MOVED_TO_badname);

7862

test_add_st("/task/read_inotify_event/IN_MOVED_FROM/badname",

7863

test_read_inotify_event_IN_MOVED_FROM_badname);

7864

test_add_st("/task/read_inotify_event/IN_DELETE/badname",

7865

test_read_inotify_event_IN_DELETE_badname);

7866

test_add_st("/task/open_and_parse_question/ENOENT",

7867

test_open_and_parse_question_ENOENT);

7868

test_add_st("/task/open_and_parse_question/EIO",

7869

test_open_and_parse_question_EIO);

7870

test_add_st("/task/open_and_parse_question/parse-error",

7871

test_open_and_parse_question_parse_error);

7872

test_add_st("/task/open_and_parse_question/nosocket",

7873

test_open_and_parse_question_nosocket);

7874

test_add_st("/task/open_and_parse_question/badsocket",

7875

test_open_and_parse_question_badsocket);

7876

test_add_st("/task/open_and_parse_question/nopid",

7877

test_open_and_parse_question_nopid);

7878

test_add_st("/task/open_and_parse_question/badpid",

7879

test_open_and_parse_question_badpid);

7880

test_add_st("/task/open_and_parse_question/noexist_pid",

7881

test_open_and_parse_question_noexist_pid);

7882

test_add_st("/task/open_and_parse_question/no-notafter",

7883

test_open_and_parse_question_no_notafter);

7884

test_add_st("/task/open_and_parse_question/bad-notafter",

7885

test_open_and_parse_question_bad_notafter);

7886

test_add_st("/task/open_and_parse_question/notafter-0",

7887

test_open_and_parse_question_notafter_0);

7888

test_add_st("/task/open_and_parse_question/notafter-1",

7889

test_open_and_parse_question_notafter_1);

7890

test_add_st("/task/open_and_parse_question/notafter-1-1",

7891

test_open_and_parse_question_notafter_1_1);

7892

test_add_st("/task/open_and_parse_question/notafter-1-2",

7893

test_open_and_parse_question_notafter_1_2);

7894

test_add_st("/task/open_and_parse_question/equal-notafter",

7895

test_open_and_parse_question_equal_notafter);

7896

test_add_st("/task/open_and_parse_question/late-notafter",

7897

test_open_and_parse_question_late_notafter);

7898

test_add_st("/task/cancel_old_question/0-1-2",

7899

test_cancel_old_question_0_1_2);

7900

test_add_st("/task/cancel_old_question/0-2-1",

7901

test_cancel_old_question_0_2_1);

7902

test_add_st("/task/cancel_old_question/1-2-3",

7903

test_cancel_old_question_1_2_3);

7904

test_add_st("/task/cancel_old_question/1-3-2",

7905

test_cancel_old_question_1_3_2);

7906

test_add_st("/task/cancel_old_question/2-1-3",

7907

test_cancel_old_question_2_1_3);

7908

test_add_st("/task/cancel_old_question/2-3-1",

7909

test_cancel_old_question_2_3_1);

7910

test_add_st("/task/cancel_old_question/3-1-2",

7911

test_cancel_old_question_3_1_2);

7912

test_add_st("/task/cancel_old_question/3-2-1",

7913

test_cancel_old_question_3_2_1);

7914

test_add_st("/task/connect_question_socket/name-too-long",

7915

test_connect_question_socket_name_too_long);

7916

test_add_st("/task/connect_question_socket/connect-fail",

7917

test_connect_question_socket_connect_fail);

7918

test_add_st("/task/connect_question_socket/bad-epoll",

7919

test_connect_question_socket_bad_epoll);

7920

test_add_st("/task/connect_question_socket/usable",

7921

test_connect_question_socket_usable);

7922

test_add_st("/task/send_password_to_socket/client-not-exited",

7923

test_send_password_to_socket_client_not_exited);

7924

test_add_st("/task/send_password_to_socket/password-not-read",

7925

test_send_password_to_socket_password_not_read);

7926

test_add_st("/task/send_password_to_socket/EMSGSIZE",

7927

test_send_password_to_socket_EMSGSIZE);

7928

test_add_st("/task/send_password_to_socket/retry",

7929

test_send_password_to_socket_retry);

7930

test_add_st("/task/send_password_to_socket/bad-epoll",

7931

test_send_password_to_socket_bad_epoll);

7932

test_add_st("/task/send_password_to_socket/null-password",

7933

test_send_password_to_socket_null_password);

7934

test_add_st("/task/send_password_to_socket/empty-password",

7935

test_send_password_to_socket_empty_password);

7936

test_add_st("/task/send_password_to_socket/empty-str-password",

7937

test_send_password_to_socket_empty_str_pass);

7938

test_add_st("/task/send_password_to_socket/text-password",

7939

test_send_password_to_socket_text_password);

7940

test_add_st("/task/send_password_to_socket/binary-password",

7941

test_send_password_to_socket_binary_password);

7942

test_add_st("/task/send_password_to_socket/nuls-in-password",

7943

test_send_password_to_socket_nuls_in_password);

7944

test_add_st("/task-creators/add_existing_questions/ENOENT",

7945

test_add_existing_questions_ENOENT);

7946

test_add_st("/task-creators/add_existing_questions/no-questions",

7947

test_add_existing_questions_no_questions);

7948

test_add_st("/task-creators/add_existing_questions/one-question",

7949

test_add_existing_questions_one_question);

7950

test_add_st("/task-creators/add_existing_questions/two-questions",

7951

test_add_existing_questions_two_questions);

7952

test_add_st("/task-creators/add_existing_questions/non-questions",

7953

test_add_existing_questions_non_questions);

7954

test_add_st("/task-creators/add_existing_questions/both-types",

7955

test_add_existing_questions_both_types);

7956

7957

return g_test_run() == 0;

7958

}

7959

7960

static bool should_only_run_tests(int *argc_p, char **argv_p[]){

7961

GOptionContext *context = g_option_context_new("");

7962

7963

g_option_context_set_help_enabled(context, FALSE);

7964

g_option_context_set_ignore_unknown_options(context, TRUE);

7965

7966

gboolean run_tests = FALSE;

7967

GOptionEntry entries[] = {

7968

{ "test", 0, 0, G_OPTION_ARG_NONE,

7969

&run_tests, "Run tests", NULL },

7970

{ NULL }

7971

};

7972

g_option_context_add_main_entries(context, entries, NULL);

7973

7974

GError *error = NULL;

7975

7976

if(g_option_context_parse(context, argc_p, argv_p, &error) != TRUE){

7977

g_option_context_free(context);

7978

g_error("Failed to parse options: %s", error->message);

7979

}

7980

7981

g_option_context_free(context);

7982

return run_tests != FALSE;

7983

}