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- Committer: Teddy Hogeborn
- Date: 2016-03-19 03:51:23 UTC
- Revision ID: teddy@recompile.se-20160319035123-53w4dbzdyjef29m1
Server: New tmpfiles.d file for persistent state directory
Provide a tmpfiles.d(5) file for systemd to create persistent state
directory on so-called "volatile" systems.
* Makefile (TMPFILES): New.
(install-server): Also install "tmpfiles.d-mandos.conf" file as
"/usr/lib/tmpfiles.d/mandos.conf".
* tmpfiles.d-mandos.conf: New.
Provide a tmpfiles.d(5) file for systemd to create persistent state
directory on so-called "volatile" systems.
* Makefile (TMPFILES): New.
(install-server): Also install "tmpfiles.d-mandos.conf" file as
"/usr/lib/tmpfiles.d/mandos.conf".
* tmpfiles.d-mandos.conf: New.
- files added:
- initramfs-tools-hook-conf
- files removed:
- debian/mandos-client.templates
- debian/tests
- dracut-module
- files modified:
- .bzrignore
added
removed
dracut-module/password-agent.c
1
/* -*- 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)))))); -*- */
2
/*
3
* Mandos password agent - Simple password agent to run Mandos client
4
*
5
* Copyright © 2019 Teddy Hogeborn
6
* Copyright © 2019 Björn Påhlsson
7
*
8
* This file is part of Mandos.
9
*
10
* Mandos is free software: you can redistribute it and/or modify it
11
* under the terms of the GNU General Public License as published by
12
* the Free Software Foundation, either version 3 of the License, or
13
* (at your option) any later version.
14
*
15
* Mandos is distributed in the hope that it will be useful, but
16
* WITHOUT ANY WARRANTY; without even the implied warranty of
17
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18
* General Public License for more details.
19
*
20
* You should have received a copy of the GNU General Public License
21
* along with Mandos. If not, see <http://www.gnu.org/licenses/>.
22
*
23
* Contact the authors at <mandos@recompile.se>.
24
*/
25
26
#define _GNU_SOURCE
27
#include <inttypes.h> /* uintmax_t, PRIuMAX, PRIdMAX,
28
intmax_t, uint32_t, SCNx32,
29
SCNuMAX, SCNxMAX */
30
#include <stddef.h> /* size_t */
31
#include <sys/types.h> /* pid_t, uid_t, gid_t, getuid(),
32
getpid() */
33
#include <stdbool.h> /* bool, true, false */
34
#include <signal.h> /* struct sigaction, sigset_t,
35
sigemptyset(), sigaddset(),
36
SIGCHLD, pthread_sigmask(),
37
SIG_BLOCK, SIG_SETMASK, SA_RESTART,
38
SA_NOCLDSTOP, sigfillset(), kill(),
39
SIGTERM, sigdelset(), SIGKILL,
40
NSIG, sigismember(), SA_ONSTACK,
41
SIG_DFL, SIG_IGN, SIGINT, SIGQUIT,
42
SIGHUP, SIGSTOP, SIG_UNBLOCK */
43
#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE,
44
malloc(), free(), strtoumax(),
45
realloc(), setenv(), calloc(),
46
mkdtemp(), mkostemp() */
47
#include <iso646.h> /* not, or, and, xor */
48
#include <error.h> /* error() */
49
#include <sysexits.h> /* EX_USAGE, EX_OSERR, EX_OSFILE */
50
#include <errno.h> /* errno, error_t, EACCES,
51
ENAMETOOLONG, ENOENT, EEXIST,
52
ECHILD, EPERM, ENOMEM, EAGAIN,
53
EINTR, ENOBUFS, EADDRINUSE,
54
ECONNREFUSED, ECONNRESET,
55
ETOOMANYREFS, EMSGSIZE, EBADF,
56
EINVAL */
57
#include <string.h> /* strdup(), memcpy(),
58
explicit_bzero(), memset(),
59
strcmp(), strlen(), strncpy(),
60
memcmp(), basename() */
61
#include <argz.h> /* argz_create(), argz_count(),
62
argz_extract(), argz_next(),
63
argz_add() */
64
#include <sys/epoll.h> /* epoll_create1(), EPOLL_CLOEXEC,
65
epoll_ctl(), EPOLL_CTL_ADD,
66
struct epoll_event, EPOLLIN,
67
EPOLLRDHUP, EPOLLOUT,
68
epoll_pwait() */
69
#include <time.h> /* struct timespec, clock_gettime(),
70
CLOCK_MONOTONIC */
71
#include <argp.h> /* struct argp_option, OPTION_HIDDEN,
72
OPTION_ALIAS, struct argp_state,
73
ARGP_ERR_UNKNOWN, ARGP_KEY_ARGS,
74
struct argp, argp_parse(),
75
ARGP_NO_EXIT */
76
#include <unistd.h> /* uid_t, gid_t, close(), pipe2(),
77
fork(), _exit(), dup2(),
78
STDOUT_FILENO, setresgid(),
79
setresuid(), execv(), ssize_t,
80
read(), dup3(), getuid(), dup(),
81
STDERR_FILENO, pause(), write(),
82
rmdir(), unlink(), getpid() */
83
#include <sys/mman.h> /* munlock(), mlock() */
84
#include <fcntl.h> /* O_CLOEXEC, O_NONBLOCK, fcntl(),
85
F_GETFD, F_GETFL, FD_CLOEXEC,
86
open(), O_WRONLY, O_RDONLY */
87
#include <sys/wait.h> /* waitpid(), WNOHANG, WIFEXITED(),
88
WEXITSTATUS() */
89
#include <limits.h> /* PIPE_BUF, NAME_MAX, INT_MAX */
90
#include <sys/inotify.h> /* inotify_init1(), IN_NONBLOCK,
91
IN_CLOEXEC, inotify_add_watch(),
92
IN_CLOSE_WRITE, IN_MOVED_TO,
93
IN_DELETE, struct inotify_event */
94
#include <fnmatch.h> /* fnmatch(), FNM_FILE_NAME */
95
#include <stdio.h> /* asprintf(), FILE, fopen(),
96
getline(), sscanf(), feof(),
97
ferror(), fclose(), stderr,
98
rename(), fdopen(), fprintf(),
99
fscanf() */
100
#include <glib.h> /* GKeyFile, g_key_file_free(), g_key_file_new(),
101
GError, g_key_file_load_from_file(),
102
G_KEY_FILE_NONE, TRUE, G_FILE_ERROR_NOENT,
103
g_key_file_get_string(), guint64,
104
g_key_file_get_uint64(),
105
G_KEY_FILE_ERROR_KEY_NOT_FOUND, gconstpointer,
106
g_assert_true(), g_assert_nonnull(),
107
g_assert_null(), g_assert_false(),
108
g_assert_cmpint(), g_assert_cmpuint(),
109
g_test_skip(), g_assert_cmpstr(),
110
g_test_init(), g_test_add(), g_test_run(),
111
GOptionContext, g_option_context_new(),
112
g_option_context_set_help_enabled(), FALSE,
113
g_option_context_set_ignore_unknown_options(),
114
gboolean, GOptionEntry, G_OPTION_ARG_NONE,
115
g_option_context_add_main_entries(),
116
g_option_context_parse(),
117
g_option_context_free(), g_error() */
118
#include <sys/un.h> /* struct sockaddr_un, SUN_LEN */
119
#include <sys/socket.h> /* AF_LOCAL, socket(), PF_LOCAL,
120
SOCK_DGRAM, SOCK_NONBLOCK,
121
SOCK_CLOEXEC, connect(),
122
struct sockaddr, socklen_t,
123
shutdown(), SHUT_RD, send(),
124
MSG_NOSIGNAL, bind(), recv(),
125
socketpair() */
126
#include <glob.h> /* globfree(), glob_t, glob(),
127
GLOB_ERR, GLOB_NOSORT, GLOB_MARK,
128
GLOB_ABORTED, GLOB_NOMATCH,
129
GLOB_NOSPACE */
130
131
/* End of includes */
132
133
/* Start of declarations of private types and functions */
134
135
/* microseconds of CLOCK_MONOTONIC absolute time; 0 means unset */
136
typedef uintmax_t mono_microsecs;
137
138
/* "task_queue" - A queue of tasks to be run */
139
typedef struct {
140
struct task_struct *tasks; /* Tasks in this queue */
141
size_t length; /* Number of tasks */
142
/* Memory allocated for "tasks", in bytes */
143
size_t allocated;
144
/* Time when this queue should be run, at the latest */
145
mono_microsecs next_run;
146
} __attribute__((designated_init)) task_queue;
147
148
/* "func_type" - A function type for task functions
149
150
I.e. functions for the code which runs when a task is run, all have
151
this type */
152
typedef void (task_func) (const struct task_struct,
153
task_queue *const)
154
__attribute__((nonnull));
155
156
/* "buffer" - A data buffer for a growing array of bytes
157
158
Used for the "password" variable */
159
typedef struct {
160
char *data;
161
size_t length;
162
size_t allocated;
163
} __attribute__((designated_init)) buffer;
164
165
/* "string_set" - A set type which can contain strings
166
167
Used by the "cancelled_filenames" variable */
168
typedef struct {
169
char *argz; /* Do not access these except in */
170
size_t argz_len; /* the string_set_* functions */
171
} __attribute__((designated_init)) string_set;
172
173
/* "task_context" - local variables for tasks
174
175
This data structure distinguishes between different tasks which are
176
using the same function. This data structure is passed to every
177
task function when each task is run.
178
179
Note that not every task uses every struct member. */
180
typedef struct task_struct {
181
task_func *const func; /* The function run by this task */
182
char *const question_filename; /* The question file */
183
const pid_t pid; /* Mandos client process ID */
184
const int epoll_fd; /* The epoll set file descriptor */
185
bool *const quit_now; /* Set to true on fatal errors */
186
const int fd; /* General purpose file descriptor */
187
bool *const mandos_client_exited; /* Set true when client exits */
188
buffer *const password; /* As read from client process */
189
bool *const password_is_read; /* "password" is done growing */
190
char *filename; /* General purpose file name */
191
/* A set of strings of all the file names of questions which have
192
been cancelled for any reason; tasks pertaining to these question
193
files should not be run */
194
string_set *const cancelled_filenames;
195
const mono_microsecs notafter; /* "NotAfter" from question file */
196
/* Updated before each queue run; is compared with queue.next_run */
197
const mono_microsecs *const current_time;
198
} __attribute__((designated_init)) task_context;
199
200
/* Declare all our functions here so we can define them in any order
201
below. Note: test functions are *not* declared here, they are
202
declared in the test section. */
203
__attribute__((warn_unused_result))
204
static bool should_only_run_tests(int *, char **[]);
205
__attribute__((warn_unused_result, cold))
206
static bool run_tests(int, char *[]);
207
static void handle_sigchld(__attribute__((unused)) int sig){}
208
__attribute__((warn_unused_result, malloc))
209
task_queue *create_queue(void);
210
__attribute__((nonnull, warn_unused_result))
211
bool add_to_queue(task_queue *const, const task_context);
212
__attribute__((nonnull))
213
void cleanup_task(const task_context *const);
214
__attribute__((nonnull))
215
void cleanup_queue(task_queue *const *const);
216
__attribute__((pure, nonnull, warn_unused_result))
217
bool queue_has_question(const task_queue *const);
218
__attribute__((nonnull))
219
void cleanup_close(const int *const);
220
__attribute__((nonnull))
221
void cleanup_string(char *const *const);
222
__attribute__((nonnull))
223
void cleanup_buffer(buffer *const);
224
__attribute__((pure, nonnull, warn_unused_result))
225
bool string_set_contains(const string_set, const char *const);
226
__attribute__((nonnull, warn_unused_result))
227
bool string_set_add(string_set *const, const char *const);
228
__attribute__((nonnull))
229
void string_set_clear(string_set *);
230
void string_set_swap(string_set *const, string_set *const);
231
__attribute__((nonnull, warn_unused_result))
232
bool start_mandos_client(task_queue *const, const int, bool *const,
233
bool *const, buffer *const, bool *const,
234
const struct sigaction *const,
235
const sigset_t, const char *const,
236
const uid_t, const gid_t,
237
const char *const *const);
238
__attribute__((nonnull))
239
task_func wait_for_mandos_client_exit;
240
__attribute__((nonnull))
241
task_func read_mandos_client_output;
242
__attribute__((warn_unused_result))
243
bool add_inotify_dir_watch(task_queue *const, const int, bool *const,
244
buffer *const, const char *const,
245
string_set *, const mono_microsecs *const,
246
bool *const, bool *const);
247
__attribute__((nonnull))
248
task_func read_inotify_event;
249
__attribute__((nonnull))
250
task_func open_and_parse_question;
251
__attribute__((nonnull))
252
task_func cancel_old_question;
253
__attribute__((nonnull))
254
task_func connect_question_socket;
255
__attribute__((nonnull))
256
task_func send_password_to_socket;
257
__attribute__((warn_unused_result))
258
bool add_existing_questions(task_queue *const, const int,
259
buffer *const, string_set *,
260
const mono_microsecs *const,
261
bool *const, bool *const,
262
const char *const);
263
__attribute__((nonnull, warn_unused_result))
264
bool wait_for_event(const int, const mono_microsecs,
265
const mono_microsecs);
266
bool run_queue(task_queue **const, string_set *const, bool *const);
267
bool clear_all_fds_from_epoll_set(const int);
268
mono_microsecs get_current_time(void);
269
__attribute__((nonnull, warn_unused_result))
270
bool setup_signal_handler(struct sigaction *const);
271
__attribute__((nonnull))
272
bool restore_signal_handler(const struct sigaction *const);
273
__attribute__((nonnull, warn_unused_result))
274
bool block_sigchld(sigset_t *const);
275
__attribute__((nonnull))
276
bool restore_sigmask(const sigset_t *const);
277
__attribute__((nonnull))
278
bool parse_arguments(int, char *[], const bool, char **, char **,
279
uid_t *const , gid_t *const, char **, size_t *);
280
281
/* End of declarations of private types and functions */
282
283
/* Start of "main" section; this section LACKS TESTS!
284
285
Code here should be as simple as possible. */
286
287
/* These are required to be global by Argp */
288
const char *argp_program_version = "password-agent " VERSION;
289
const char *argp_program_bug_address = "<mandos@recompile.se>";
290
291
int main(int argc, char *argv[]){
292
293
/* If the --test option is passed, skip all normal operations and
294
instead only run the run_tests() function, which also does all
295
its own option parsing, so we don't have to do anything here. */
296
if(should_only_run_tests(&argc, &argv)){
297
if(run_tests(argc, argv)){
298
return EXIT_SUCCESS; /* All tests successful */
299
}
300
return EXIT_FAILURE; /* Some test(s) failed */
301
}
302
303
__attribute__((cleanup(cleanup_string)))
304
char *agent_directory = NULL;
305
306
__attribute__((cleanup(cleanup_string)))
307
char *helper_directory = NULL;
308
309
uid_t user = 0;
310
gid_t group = 0;
311
312
__attribute__((cleanup(cleanup_string)))
313
char *mandos_argz = NULL;
314
size_t mandos_argz_length = 0;
315
316
if(not parse_arguments(argc, argv, true, &agent_directory,
317
&helper_directory, &user, &group,
318
&mandos_argz, &mandos_argz_length)){
319
/* This should never happen, since "true" is passed as the third
320
argument to parse_arguments() above, which should make
321
argp_parse() call exit() if any parsing error occurs. */
322
error(EX_USAGE, errno, "Failed to parse arguments");
323
}
324
325
const char default_agent_directory[] = "/run/systemd/ask-password";
326
const char default_helper_directory[]
327
= "/lib/mandos/plugin-helpers";
328
const char *const default_argv[]
329
= {"/lib/mandos/plugins.d/mandos-client", NULL };
330
331
/* Set variables to default values if unset */
332
if(agent_directory == NULL){
333
agent_directory = strdup(default_agent_directory);
334
if(agent_directory == NULL){
335
error(EX_OSERR, errno, "Failed strdup()");
336
}
337
}
338
if(helper_directory == NULL){
339
helper_directory = strdup(default_helper_directory);
340
if(helper_directory == NULL){
341
error(EX_OSERR, errno, "Failed strdup()");
342
}
343
}
344
if(user == 0){
345
user = 65534; /* nobody */
346
}
347
if(group == 0){
348
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){
353
#ifdef __GNUC__
354
#pragma GCC diagnostic push
355
/* argz_create() takes a non-const argv for some unknown reason -
356
argz_create() isn't modifying the strings, just copying them.
357
Therefore, this cast to non-const should be safe. */
358
#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
413
/* 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
¤t_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
case ENOTDIR:
435
return EX_OSFILE;
436
default:
437
return EX_OSERR;
438
}
439
}
440
if(not add_existing_questions(queue, epoll_fd, &password,
441
&cancelled_filenames, ¤t_time,
442
&mandos_client_exited,
443
&password_is_read, agent_directory)){
444
return EXIT_FAILURE; /* Error has already been printed */
445
}
446
447
/* Run queue */
448
do {
449
current_time = get_current_time();
450
if(not wait_for_event(epoll_fd, queue->next_run, current_time)){
451
const error_t saved_errno = errno;
452
error(EXIT_FAILURE, saved_errno, "Failure while waiting for"
453
" events");
454
}
455
456
current_time = get_current_time();
457
if(not run_queue(&queue, &cancelled_filenames, &quit_now)){
458
const error_t saved_errno = errno;
459
error(EXIT_FAILURE, saved_errno, "Failure while running queue");
460
}
461
462
/* When no tasks about questions are left in the queue, break out
463
of the loop (and implicitly exit the program) */
464
} while(queue_has_question(queue));
465
466
restore_signal_handler(&old_sigchld_action);
467
restore_sigmask(&orig_sigmask);
468
469
return EXIT_SUCCESS;
470
}
471
472
__attribute__((warn_unused_result))
473
mono_microsecs get_current_time(void){
474
struct timespec currtime;
475
if(clock_gettime(CLOCK_MONOTONIC, &currtime) != 0){
476
error(0, errno, "Failed to get current time");
477
return 0;
478
}
479
return ((mono_microsecs)currtime.tv_sec * 1000000) /* seconds */
480
+ ((mono_microsecs)currtime.tv_nsec / 1000); /* nanoseconds */
481
}
482
483
/* End of "main" section */
484
485
/* Start of regular code section; ALL this code has tests */
486
487
__attribute__((nonnull))
488
bool parse_arguments(int argc, char *argv[], const bool exit_failure,
489
char **agent_directory, char **helper_directory,
490
uid_t *const user, gid_t *const group,
491
char **mandos_argz, size_t *mandos_argz_length){
492
493
const struct argp_option options[] = {
494
{ .name="agent-directory",.key='d', .arg="DIRECTORY",
495
.doc="Systemd password agent directory" },
496
{ .name="helper-directory",.key=128, .arg="DIRECTORY",
497
.doc="Mandos Client password helper directory" },
498
{ .name="plugin-helper-dir", .key=129, /* From plugin-runner */
499
.flags=OPTION_HIDDEN | OPTION_ALIAS },
500
{ .name="user", .key='u', .arg="USERID",
501
.doc="User ID the Mandos Client will use as its unprivileged"
502
" user" },
503
{ .name="userid", .key=130, /* From plugin--runner */
504
.flags=OPTION_HIDDEN | OPTION_ALIAS },
505
{ .name="group", .key='g', .arg="GROUPID",
506
.doc="Group ID the Mandos Client will use as its unprivileged"
507
" group" },
508
{ .name="groupid", .key=131, /* From plugin--runner */
509
.flags=OPTION_HIDDEN | OPTION_ALIAS },
510
{ .name="test", .key=255, /* See should_only_run_tests() */
511
.doc="Skip normal operation, and only run self-tests. See"
512
" --test --help.", .group=10, },
513
{ NULL },
514
};
515
516
__attribute__((nonnull(3)))
517
error_t parse_opt(int key, char *arg, struct argp_state *state){
518
errno = 0;
519
switch(key){
520
case 'd': /* --agent-directory */
521
*agent_directory = strdup(arg);
522
break;
523
case 128: /* --helper-directory */
524
case 129: /* --plugin-helper-dir */
525
*helper_directory = strdup(arg);
526
break;
527
case 'u': /* --user */
528
case 130: /* --userid */
529
{
530
char *tmp;
531
uintmax_t tmp_id = 0;
532
errno = 0;
533
tmp_id = (uid_t)strtoumax(arg, &tmp, 10);
534
if(errno != 0 or tmp == arg or *tmp != '\0'
535
or tmp_id != (uid_t)tmp_id or (uid_t)tmp_id == 0){
536
return ARGP_ERR_UNKNOWN;
537
}
538
*user = (uid_t)tmp_id;
539
errno = 0;
540
break;
541
}
542
case 'g': /* --group */
543
case 131: /* --groupid */
544
{
545
char *tmp;
546
uintmax_t tmp_id = 0;
547
errno = 0;
548
tmp_id = (uid_t)strtoumax(arg, &tmp, 10);
549
if(errno != 0 or tmp == arg or *tmp != '\0'
550
or tmp_id != (gid_t)tmp_id or (gid_t)tmp_id == 0){
551
return ARGP_ERR_UNKNOWN;
552
}
553
*group = (gid_t)tmp_id;
554
errno = 0;
555
break;
556
}
557
case ARGP_KEY_ARGS:
558
/* Copy arguments into argz vector */
559
return argz_create(state->argv + state->next, mandos_argz,
560
mandos_argz_length);
561
default:
562
return ARGP_ERR_UNKNOWN;
563
}
564
return errno;
565
}
566
567
const struct argp argp = {
568
.options=options,
569
.parser=parse_opt,
570
.args_doc="[MANDOS_CLIENT [OPTION...]]\n--test",
571
.doc = "Mandos password agent -- runs Mandos client as a"
572
" systemd password agent",
573
};
574
575
errno = argp_parse(&argp, argc, argv,
576
exit_failure ? 0 : ARGP_NO_EXIT, NULL, NULL);
577
578
return errno == 0;
579
}
580
581
__attribute__((nonnull, warn_unused_result))
582
bool block_sigchld(sigset_t *const orig_sigmask){
583
sigset_t sigchld_sigmask;
584
if(sigemptyset(&sigchld_sigmask) < 0){
585
error(0, errno, "Failed to empty signal set");
586
return false;
587
}
588
if(sigaddset(&sigchld_sigmask, SIGCHLD) < 0){
589
error(0, errno, "Failed to add SIGCHLD to signal set");
590
return false;
591
}
592
if(pthread_sigmask(SIG_BLOCK, &sigchld_sigmask, orig_sigmask) != 0){
593
error(0, errno, "Failed to block SIGCHLD signal");
594
return false;
595
}
596
return true;
597
}
598
599
__attribute__((nonnull, warn_unused_result, const))
600
bool restore_sigmask(const sigset_t *const orig_sigmask){
601
if(pthread_sigmask(SIG_SETMASK, orig_sigmask, NULL) != 0){
602
error(0, errno, "Failed to restore blocked signals");
603
return false;
604
}
605
return true;
606
}
607
608
__attribute__((nonnull, warn_unused_result))
609
bool setup_signal_handler(struct sigaction *const old_sigchld_action){
610
struct sigaction sigchld_action = {
611
.sa_handler=handle_sigchld,
612
.sa_flags=SA_RESTART | SA_NOCLDSTOP,
613
};
614
/* Set all signals in "sa_mask" struct member; this makes all
615
signals automatically blocked during signal handler */
616
if(sigfillset(&sigchld_action.sa_mask) != 0){
617
error(0, errno, "Failed to do sigfillset()");
618
return false;
619
}
620
if(sigaction(SIGCHLD, &sigchld_action, old_sigchld_action) != 0){
621
error(0, errno, "Failed to set SIGCHLD signal handler");
622
return false;
623
}
624
return true;
625
}
626
627
__attribute__((nonnull, warn_unused_result))
628
bool restore_signal_handler(const struct sigaction *const
629
old_sigchld_action){
630
if(sigaction(SIGCHLD, old_sigchld_action, NULL) != 0){
631
error(0, errno, "Failed to restore signal handler");
632
return false;
633
}
634
return true;
635
}
636
637
__attribute__((warn_unused_result, malloc))
638
task_queue *create_queue(void){
639
task_queue *queue = malloc(sizeof(task_queue));
640
if(queue){
641
queue->tasks = NULL;
642
queue->length = 0;
643
queue->allocated = 0;
644
queue->next_run = 0;
645
}
646
return queue;
647
}
648
649
__attribute__((nonnull, warn_unused_result))
650
bool add_to_queue(task_queue *const queue, const task_context task){
651
const size_t needed_size = sizeof(task_context)*(queue->length + 1);
652
if(needed_size > (queue->allocated)){
653
task_context *const new_tasks = realloc(queue->tasks,
654
needed_size);
655
if(new_tasks == NULL){
656
error(0, errno, "Failed to allocate %" PRIuMAX
657
" bytes for queue->tasks", (uintmax_t)needed_size);
658
return false;
659
}
660
queue->tasks = new_tasks;
661
queue->allocated = needed_size;
662
}
663
/* Using memcpy here is necessary because doing */
664
/* queue->tasks[queue->length++] = task; */
665
/* would violate const-ness of task members */
666
memcpy(&(queue->tasks[queue->length++]), &task,
667
sizeof(task_context));
668
return true;
669
}
670
671
__attribute__((nonnull))
672
void cleanup_task(const task_context *const task){
673
const error_t saved_errno = errno;
674
/* free and close all task data */
675
free(task->question_filename);
676
if(task->filename != task->question_filename){
677
free(task->filename);
678
}
679
if(task->pid > 0){
680
kill(task->pid, SIGTERM);
681
}
682
if(task->fd > 0){
683
close(task->fd);
684
}
685
errno = saved_errno;
686
}
687
688
__attribute__((nonnull))
689
void free_queue(task_queue *const queue){
690
free(queue->tasks);
691
free(queue);
692
}
693
694
__attribute__((nonnull))
695
void cleanup_queue(task_queue *const *const queue){
696
if(*queue == NULL){
697
return;
698
}
699
for(size_t i = 0; i < (*queue)->length; i++){
700
const task_context *const task = ((*queue)->tasks)+i;
701
cleanup_task(task);
702
}
703
free_queue(*queue);
704
}
705
706
__attribute__((pure, nonnull, warn_unused_result))
707
bool queue_has_question(const task_queue *const queue){
708
for(size_t i=0; i < queue->length; i++){
709
if(queue->tasks[i].question_filename != NULL){
710
return true;
711
}
712
}
713
return false;
714
}
715
716
__attribute__((nonnull))
717
void cleanup_close(const int *const fd){
718
const error_t saved_errno = errno;
719
close(*fd);
720
errno = saved_errno;
721
}
722
723
__attribute__((nonnull))
724
void cleanup_string(char *const *const ptr){
725
free(*ptr);
726
}
727
728
__attribute__((nonnull))
729
void cleanup_buffer(buffer *buf){
730
if(buf->allocated > 0){
731
#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 25)
732
explicit_bzero(buf->data, buf->allocated);
733
#else
734
memset(buf->data, '\0', buf->allocated);
735
#endif
736
}
737
if(buf->data != NULL){
738
if(munlock(buf->data, buf->allocated) != 0){
739
error(0, errno, "Failed to unlock memory of old buffer");
740
}
741
free(buf->data);
742
buf->data = NULL;
743
}
744
buf->length = 0;
745
buf->allocated = 0;
746
}
747
748
__attribute__((pure, nonnull, warn_unused_result))
749
bool string_set_contains(const string_set set, const char *const str){
750
for(const char *s = set.argz; s != NULL and set.argz_len > 0;
751
s = argz_next(set.argz, set.argz_len, s)){
752
if(strcmp(s, str) == 0){
753
return true;
754
}
755
}
756
return false;
757
}
758
759
__attribute__((nonnull, warn_unused_result))
760
bool string_set_add(string_set *const set, const char *const str){
761
if(string_set_contains(*set, str)){
762
return true;
763
}
764
error_t error = argz_add(&set->argz, &set->argz_len, str);
765
if(error == 0){
766
return true;
767
}
768
errno = error;
769
return false;
770
}
771
772
__attribute__((nonnull))
773
void string_set_clear(string_set *set){
774
free(set->argz);
775
set->argz = NULL;
776
set->argz_len = 0;
777
}
778
779
__attribute__((nonnull))
780
void string_set_swap(string_set *const set1, string_set *const set2){
781
/* Swap contents of two string sets */
782
{
783
char *const tmp_argz = set1->argz;
784
set1->argz = set2->argz;
785
set2->argz = tmp_argz;
786
}
787
{
788
const size_t tmp_argz_len = set1->argz_len;
789
set1->argz_len = set2->argz_len;
790
set2->argz_len = tmp_argz_len;
791
}
792
}
793
794
__attribute__((nonnull, warn_unused_result))
795
bool start_mandos_client(task_queue *const queue,
796
const int epoll_fd,
797
bool *const mandos_client_exited,
798
bool *const quit_now, buffer *const password,
799
bool *const password_is_read,
800
const struct sigaction *const
801
old_sigchld_action, const sigset_t sigmask,
802
const char *const helper_directory,
803
const uid_t user, const gid_t group,
804
const char *const *const argv){
805
int pipefds[2];
806
if(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK) != 0){
807
error(0, errno, "Failed to pipe2(..., O_CLOEXEC | O_NONBLOCK)");
808
return false;
809
}
810
811
const pid_t pid = fork();
812
if(pid == 0){
813
if(not restore_signal_handler(old_sigchld_action)){
814
_exit(EXIT_FAILURE);
815
}
816
if(not restore_sigmask(&sigmask)){
817
_exit(EXIT_FAILURE);
818
}
819
if(close(pipefds[0]) != 0){
820
error(0, errno, "Failed to close() parent pipe fd");
821
_exit(EXIT_FAILURE);
822
}
823
if(dup2(pipefds[1], STDOUT_FILENO) == -1){
824
error(0, errno, "Failed to dup2() pipe fd to stdout");
825
_exit(EXIT_FAILURE);
826
}
827
if(close(pipefds[1]) != 0){
828
error(0, errno, "Failed to close() old child pipe fd");
829
_exit(EXIT_FAILURE);
830
}
831
if(setenv("MANDOSPLUGINHELPERDIR", helper_directory, 1) != 0){
832
error(0, errno, "Failed to setenv(\"MANDOSPLUGINHELPERDIR\","
833
" \"%s\", 1)", helper_directory);
834
_exit(EXIT_FAILURE);
835
}
836
if(group != 0 and setresgid(group, 0, 0) == -1){
837
error(0, errno, "Failed to setresgid(-1, %" PRIuMAX ", %"
838
PRIuMAX")", (uintmax_t)group, (uintmax_t)group);
839
_exit(EXIT_FAILURE);
840
}
841
if(user != 0 and setresuid(user, 0, 0) == -1){
842
error(0, errno, "Failed to setresuid(-1, %" PRIuMAX ", %"
843
PRIuMAX")", (uintmax_t)user, (uintmax_t)user);
844
_exit(EXIT_FAILURE);
845
}
846
#ifdef __GNUC__
847
#pragma GCC diagnostic push
848
/* For historical reasons, the "argv" argument to execv() is not
849
const, but it is safe to override this. */
850
#pragma GCC diagnostic ignored "-Wcast-qual"
851
#endif
852
execv(argv[0], (char **)argv);
853
#ifdef __GNUC__
854
#pragma GCC diagnostic pop
855
#endif
856
error(0, errno, "execv(\"%s\", ...) failed", argv[0]);
857
_exit(EXIT_FAILURE);
858
}
859
close(pipefds[1]);
860
861
if(not add_to_queue(queue, (task_context){
862
.func=wait_for_mandos_client_exit,
863
.pid=pid,
864
.mandos_client_exited=mandos_client_exited,
865
.quit_now=quit_now,
866
})){
867
error(0, errno, "Failed to add wait_for_mandos_client to queue");
868
close(pipefds[0]);
869
return false;
870
}
871
872
const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, pipefds[0],
873
&(struct epoll_event)
874
{ .events=EPOLLIN | EPOLLRDHUP });
875
if(ret != 0 and errno != EEXIST){
876
error(0, errno, "Failed to add file descriptor to epoll set");
877
close(pipefds[0]);
878
return false;
879
}
880
881
return add_to_queue(queue, (task_context){
882
.func=read_mandos_client_output,
883
.epoll_fd=epoll_fd,
884
.fd=pipefds[0],
885
.quit_now=quit_now,
886
.password=password,
887
.password_is_read=password_is_read,
888
});
889
}
890
891
__attribute__((nonnull))
892
void wait_for_mandos_client_exit(const task_context task,
893
task_queue *const queue){
894
const pid_t pid = task.pid;
895
bool *const mandos_client_exited = task.mandos_client_exited;
896
bool *const quit_now = task.quit_now;
897
898
int status;
899
switch(waitpid(pid, &status, WNOHANG)){
900
case 0: /* Not exited yet */
901
if(not add_to_queue(queue, task)){
902
error(0, errno, "Failed to add myself to queue");
903
*quit_now = true;
904
}
905
break;
906
case -1: /* Error */
907
error(0, errno, "waitpid(%" PRIdMAX ") failed", (intmax_t)pid);
908
if(errno != ECHILD){
909
kill(pid, SIGTERM);
910
}
911
*quit_now = true;
912
break;
913
default: /* Has exited */
914
*mandos_client_exited = true;
915
if((not WIFEXITED(status))
916
or (WEXITSTATUS(status) != EXIT_SUCCESS)){
917
error(0, 0, "Mandos client failed or was killed");
918
*quit_now = true;
919
}
920
}
921
}
922
923
__attribute__((nonnull))
924
void read_mandos_client_output(const task_context task,
925
task_queue *const queue){
926
buffer *const password = task.password;
927
bool *const quit_now = task.quit_now;
928
bool *const password_is_read = task.password_is_read;
929
const int fd = task.fd;
930
const int epoll_fd = task.epoll_fd;
931
932
const size_t new_potential_size = (password->length + PIPE_BUF);
933
if(password->allocated < new_potential_size){
934
char *const new_buffer = calloc(new_potential_size, 1);
935
if(new_buffer == NULL){
936
error(0, errno, "Failed to allocate %" PRIuMAX
937
" bytes for password", (uintmax_t)new_potential_size);
938
*quit_now = true;
939
close(fd);
940
return;
941
}
942
if(mlock(new_buffer, new_potential_size) != 0){
943
/* Warn but do not treat as fatal error */
944
if(errno != EPERM and errno != ENOMEM){
945
error(0, errno, "Failed to lock memory for password");
946
}
947
}
948
if(password->length > 0){
949
memcpy(new_buffer, password->data, password->length);
950
#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 25)
951
explicit_bzero(password->data, password->allocated);
952
#else
953
memset(password->data, '\0', password->allocated);
954
#endif
955
}
956
if(password->data != NULL){
957
if(munlock(password->data, password->allocated) != 0){
958
error(0, errno, "Failed to unlock memory of old buffer");
959
}
960
free(password->data);
961
}
962
password->data = new_buffer;
963
password->allocated = new_potential_size;
964
}
965
966
const ssize_t read_length = read(fd, password->data
967
+ password->length, PIPE_BUF);
968
969
if(read_length == 0){ /* EOF */
970
*password_is_read = true;
971
close(fd);
972
return;
973
}
974
if(read_length < 0 and errno != EAGAIN){ /* Actual error */
975
error(0, errno, "Failed to read password from Mandos client");
976
*quit_now = true;
977
close(fd);
978
return;
979
}
980
if(read_length > 0){ /* Data has been read */
981
password->length += (size_t)read_length;
982
}
983
984
/* Either data was read, or EAGAIN was indicated, meaning no data
985
available yet */
986
987
/* Re-add the fd to the epoll set */
988
const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,
989
&(struct epoll_event)
990
{ .events=EPOLLIN | EPOLLRDHUP });
991
if(ret != 0 and errno != EEXIST){
992
error(0, errno, "Failed to re-add file descriptor to epoll set");
993
*quit_now = true;
994
close(fd);
995
return;
996
}
997
998
/* Re-add myself to the queue */
999
if(not add_to_queue(queue, task)){
1000
error(0, errno, "Failed to add myself to queue");
1001
*quit_now = true;
1002
close(fd);
1003
}
1004
}
1005
1006
__attribute__((nonnull, warn_unused_result))
1007
bool add_inotify_dir_watch(task_queue *const queue,
1008
const int epoll_fd, bool *const quit_now,
1009
buffer *const password,
1010
const char *const dir,
1011
string_set *cancelled_filenames,
1012
const mono_microsecs *const current_time,
1013
bool *const mandos_client_exited,
1014
bool *const password_is_read){
1015
const int fd = inotify_init1(IN_NONBLOCK | IN_CLOEXEC);
1016
if(fd == -1){
1017
error(0, errno, "Failed to create inotify instance");
1018
return false;
1019
}
1020
1021
if(inotify_add_watch(fd, dir, IN_CLOSE_WRITE | IN_MOVED_TO
1022
| IN_MOVED_FROM| IN_DELETE | IN_EXCL_UNLINK
1023
| IN_ONLYDIR)
1024
== -1){
1025
error(0, errno, "Failed to create inotify watch on %s", dir);
1026
return false;
1027
}
1028
1029
/* Add the inotify fd to the epoll set */
1030
const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,
1031
&(struct epoll_event)
1032
{ .events=EPOLLIN | EPOLLRDHUP });
1033
if(ret != 0 and errno != EEXIST){
1034
error(0, errno, "Failed to add file descriptor to epoll set");
1035
close(fd);
1036
return false;
1037
}
1038
1039
const task_context read_inotify_event_task = {
1040
.func=read_inotify_event,
1041
.epoll_fd=epoll_fd,
1042
.quit_now=quit_now,
1043
.password=password,
1044
.fd=fd,
1045
.filename=strdup(dir),
1046
.cancelled_filenames=cancelled_filenames,
1047
.current_time=current_time,
1048
.mandos_client_exited=mandos_client_exited,
1049
.password_is_read=password_is_read,
1050
};
1051
if(read_inotify_event_task.filename == NULL){
1052
error(0, errno, "Failed to strdup(\"%s\")", dir);
1053
close(fd);
1054
return false;
1055
}
1056
1057
return add_to_queue(queue, read_inotify_event_task);
1058
}
1059
1060
__attribute__((nonnull))
1061
void read_inotify_event(const task_context task,
1062
task_queue *const queue){
1063
const int fd = task.fd;
1064
const int epoll_fd = task.epoll_fd;
1065
char *const filename = task.filename;
1066
bool *quit_now = task.quit_now;
1067
buffer *const password = task.password;
1068
string_set *const cancelled_filenames = task.cancelled_filenames;
1069
const mono_microsecs *const current_time = task.current_time;
1070
bool *const mandos_client_exited = task.mandos_client_exited;
1071
bool *const password_is_read = task.password_is_read;
1072
1073
/* "sufficient to read at least one event." - inotify(7) */
1074
const size_t ievent_size = (sizeof(struct inotify_event)
1075
+ NAME_MAX + 1);
1076
struct {
1077
struct inotify_event event;
1078
char name_buffer[NAME_MAX + 1];
1079
} ievent_buffer;
1080
struct inotify_event *const ievent = &ievent_buffer.event;
1081
1082
const ssize_t read_length = read(fd, ievent, ievent_size);
1083
if(read_length == 0){ /* EOF */
1084
error(0, 0, "Got EOF from inotify fd for directory %s", filename);
1085
*quit_now = true;
1086
cleanup_task(&task);
1087
return;
1088
}
1089
if(read_length < 0 and errno != EAGAIN){ /* Actual error */
1090
error(0, errno, "Failed to read from inotify fd for directory %s",
1091
filename);
1092
*quit_now = true;
1093
cleanup_task(&task);
1094
return;
1095
}
1096
if(read_length > 0 /* Data has been read */
1097
and fnmatch("ask.*", ievent->name, FNM_FILE_NAME) == 0){
1098
char *question_filename = NULL;
1099
const ssize_t question_filename_length
1100
= asprintf(&question_filename, "%s/%s", filename, ievent->name);
1101
if(question_filename_length < 0){
1102
error(0, errno, "Failed to create file name from directory name"
1103
" %s and file name %s", filename, ievent->name);
1104
} else {
1105
if(ievent->mask & (IN_CLOSE_WRITE | IN_MOVED_TO)){
1106
if(not add_to_queue(queue, (task_context){
1107
.func=open_and_parse_question,
1108
.epoll_fd=epoll_fd,
1109
.question_filename=question_filename,
1110
.filename=question_filename,
1111
.password=password,
1112
.cancelled_filenames=cancelled_filenames,
1113
.current_time=current_time,
1114
.mandos_client_exited=mandos_client_exited,
1115
.password_is_read=password_is_read,
1116
})){
1117
error(0, errno, "Failed to add open_and_parse_question task"
1118
" for file name %s to queue", filename);
1119
} else {
1120
/* Force the added task (open_and_parse_question) to run
1121
immediately */
1122
queue->next_run = 1;
1123
}
1124
} else if(ievent->mask & (IN_MOVED_FROM | IN_DELETE)){
1125
if(not string_set_add(cancelled_filenames,
1126
question_filename)){
1127
error(0, errno, "Could not add question %s to"
1128
" cancelled_questions", question_filename);
1129
*quit_now = true;
1130
free(question_filename);
1131
cleanup_task(&task);
1132
return;
1133
}
1134
free(question_filename);
1135
}
1136
}
1137
}
1138
1139
/* Either data was read, or EAGAIN was indicated, meaning no data
1140
available yet */
1141
1142
/* Re-add myself to the queue */
1143
if(not add_to_queue(queue, task)){
1144
error(0, errno, "Failed to re-add read_inotify_event(%s) to"
1145
" queue", filename);
1146
*quit_now = true;
1147
cleanup_task(&task);
1148
return;
1149
}
1150
1151
/* Re-add the fd to the epoll set */
1152
const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,
1153
&(struct epoll_event)
1154
{ .events=EPOLLIN | EPOLLRDHUP });
1155
if(ret != 0 and errno != EEXIST){
1156
error(0, errno, "Failed to re-add inotify file descriptor %d for"
1157
" directory %s to epoll set", fd, filename);
1158
/* Force the added task (read_inotify_event) to run again, at most
1159
one second from now */
1160
if((queue->next_run == 0)
1161
or (queue->next_run > (*current_time + 1000000))){
1162
queue->next_run = *current_time + 1000000;
1163
}
1164
}
1165
}
1166
1167
__attribute__((nonnull))
1168
void open_and_parse_question(const task_context task,
1169
task_queue *const queue){
1170
__attribute__((cleanup(cleanup_string)))
1171
char *question_filename = task.question_filename;
1172
const int epoll_fd = task.epoll_fd;
1173
buffer *const password = task.password;
1174
string_set *const cancelled_filenames = task.cancelled_filenames;
1175
const mono_microsecs *const current_time = task.current_time;
1176
bool *const mandos_client_exited = task.mandos_client_exited;
1177
bool *const password_is_read = task.password_is_read;
1178
1179
/* We use the GLib "Key-value file parser" functions to parse the
1180
question file. See <https://www.freedesktop.org/wiki/Software
1181
/systemd/PasswordAgents/> for specification of contents */
1182
__attribute__((nonnull))
1183
void cleanup_g_key_file(GKeyFile **key_file){
1184
if(*key_file != NULL){
1185
g_key_file_free(*key_file);
1186
}
1187
}
1188
1189
__attribute__((cleanup(cleanup_g_key_file)))
1190
GKeyFile *key_file = g_key_file_new();
1191
if(key_file == NULL){
1192
error(0, errno, "Failed g_key_file_new() for \"%s\"",
1193
question_filename);
1194
return;
1195
}
1196
GError *glib_error = NULL;
1197
if(g_key_file_load_from_file(key_file, question_filename,
1198
G_KEY_FILE_NONE, &glib_error) != TRUE){
1199
/* If a file was removed, we should ignore it, so */
1200
/* only show error message if file actually existed */
1201
if(glib_error->code != G_FILE_ERROR_NOENT){
1202
error(0, 0, "Failed to load question data from file \"%s\": %s",
1203
question_filename, glib_error->message);
1204
}
1205
return;
1206
}
1207
1208
__attribute__((cleanup(cleanup_string)))
1209
char *socket_name = g_key_file_get_string(key_file, "Ask",
1210
"Socket",
1211
&glib_error);
1212
if(socket_name == NULL){
1213
error(0, 0, "Question file \"%s\" did not contain \"Socket\": %s",
1214
question_filename, glib_error->message);
1215
return;
1216
}
1217
1218
if(strlen(socket_name) == 0){
1219
error(0, 0, "Question file \"%s\" had empty \"Socket\" value",
1220
question_filename);
1221
return;
1222
}
1223
1224
const guint64 pid = g_key_file_get_uint64(key_file, "Ask", "PID",
1225
&glib_error);
1226
if(glib_error != NULL){
1227
error(0, 0, "Question file \"%s\" contained bad \"PID\": %s",
1228
question_filename, glib_error->message);
1229
return;
1230
}
1231
1232
if((pid != (guint64)((pid_t)pid))
1233
or (kill((pid_t)pid, 0) != 0)){
1234
error(0, 0, "PID %" PRIuMAX " in question file \"%s\" is bad or"
1235
" does not exist", (uintmax_t)pid, question_filename);
1236
return;
1237
}
1238
1239
guint64 notafter = g_key_file_get_uint64(key_file, "Ask",
1240
"NotAfter", &glib_error);
1241
if(glib_error != NULL){
1242
if(glib_error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND){
1243
error(0, 0, "Question file \"%s\" contained bad \"NotAfter\":"
1244
" %s", question_filename, glib_error->message);
1245
}
1246
notafter = 0;
1247
}
1248
if(notafter != 0){
1249
if(queue->next_run == 0 or (queue->next_run > notafter)){
1250
queue->next_run = notafter;
1251
}
1252
if(*current_time >= notafter){
1253
return;
1254
}
1255
}
1256
1257
const task_context connect_question_socket_task = {
1258
.func=connect_question_socket,
1259
.question_filename=strdup(question_filename),
1260
.epoll_fd=epoll_fd,
1261
.password=password,
1262
.filename=strdup(socket_name),
1263
.cancelled_filenames=task.cancelled_filenames,
1264
.mandos_client_exited=mandos_client_exited,
1265
.password_is_read=password_is_read,
1266
.current_time=current_time,
1267
};
1268
if(connect_question_socket_task.question_filename == NULL
1269
or connect_question_socket_task.filename == NULL
1270
or not add_to_queue(queue, connect_question_socket_task)){
1271
error(0, errno, "Failed to add connect_question_socket for socket"
1272
" %s (from \"%s\") to queue", socket_name,
1273
question_filename);
1274
cleanup_task(&connect_question_socket_task);
1275
return;
1276
}
1277
/* Force the added task (connect_question_socket) to run
1278
immediately */
1279
queue->next_run = 1;
1280
1281
if(notafter > 0){
1282
char *const dup_filename = strdup(question_filename);
1283
const task_context cancel_old_question_task = {
1284
.func=cancel_old_question,
1285
.question_filename=dup_filename,
1286
.notafter=notafter,
1287
.filename=dup_filename,
1288
.cancelled_filenames=cancelled_filenames,
1289
.current_time=current_time,
1290
};
1291
if(cancel_old_question_task.question_filename == NULL
1292
or not add_to_queue(queue, cancel_old_question_task)){
1293
error(0, errno, "Failed to add cancel_old_question for file "
1294
"\"%s\" to queue", question_filename);
1295
cleanup_task(&cancel_old_question_task);
1296
return;
1297
}
1298
}
1299
}
1300
1301
__attribute__((nonnull))
1302
void cancel_old_question(const task_context task,
1303
task_queue *const queue){
1304
char *const question_filename = task.question_filename;
1305
string_set *const cancelled_filenames = task.cancelled_filenames;
1306
const mono_microsecs notafter = task.notafter;
1307
const mono_microsecs *const current_time = task.current_time;
1308
1309
if(*current_time >= notafter){
1310
if(not string_set_add(cancelled_filenames, question_filename)){
1311
error(0, errno, "Failed to cancel question for file %s",
1312
question_filename);
1313
}
1314
cleanup_task(&task);
1315
return;
1316
}
1317
1318
if(not add_to_queue(queue, task)){
1319
error(0, errno, "Failed to add cancel_old_question for file "
1320
"%s to queue", question_filename);
1321
cleanup_task(&task);
1322
return;
1323
}
1324
1325
if((queue->next_run == 0) or (queue->next_run > notafter)){
1326
queue->next_run = notafter;
1327
}
1328
}
1329
1330
__attribute__((nonnull))
1331
void connect_question_socket(const task_context task,
1332
task_queue *const queue){
1333
char *const question_filename = task.question_filename;
1334
char *const filename = task.filename;
1335
const int epoll_fd = task.epoll_fd;
1336
buffer *const password = task.password;
1337
string_set *const cancelled_filenames = task.cancelled_filenames;
1338
bool *const mandos_client_exited = task.mandos_client_exited;
1339
bool *const password_is_read = task.password_is_read;
1340
const mono_microsecs *const current_time = task.current_time;
1341
1342
struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };
1343
1344
if(sizeof(sock_name.sun_path) <= strlen(filename)){
1345
error(0, 0, "Socket filename is larger than"
1346
" sizeof(sockaddr_un.sun_path); %" PRIuMAX ": \"%s\"",
1347
(uintmax_t)sizeof(sock_name.sun_path), filename);
1348
if(not string_set_add(cancelled_filenames, question_filename)){
1349
error(0, errno, "Failed to cancel question for file %s",
1350
question_filename);
1351
}
1352
cleanup_task(&task);
1353
return;
1354
}
1355
1356
const int fd = socket(PF_LOCAL, SOCK_DGRAM
1357
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);
1358
if(fd < 0){
1359
error(0, errno,
1360
"Failed to create socket(PF_LOCAL, SOCK_DGRAM, 0)");
1361
if(not add_to_queue(queue, task)){
1362
error(0, errno, "Failed to add connect_question_socket for file"
1363
" \"%s\" and socket \"%s\" to queue", question_filename,
1364
filename);
1365
cleanup_task(&task);
1366
} else {
1367
/* Force the added task (connect_question_socket) to run
1368
immediately */
1369
queue->next_run = 1;
1370
}
1371
return;
1372
}
1373
1374
strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));
1375
if(connect(fd, (struct sockaddr *)&sock_name,
1376
(socklen_t)SUN_LEN(&sock_name)) != 0){
1377
error(0, errno, "Failed to connect socket to \"%s\"", filename);
1378
if(not add_to_queue(queue, task)){
1379
error(0, errno, "Failed to add connect_question_socket for file"
1380
" \"%s\" and socket \"%s\" to queue", question_filename,
1381
filename);
1382
cleanup_task(&task);
1383
} else {
1384
/* Force the added task (connect_question_socket) to run again,
1385
at most one second from now */
1386
if((queue->next_run == 0)
1387
or (queue->next_run > (*current_time + 1000000))){
1388
queue->next_run = *current_time + 1000000;
1389
}
1390
}
1391
return;
1392
}
1393
1394
/* Not necessary, but we can try, and merely warn on failure */
1395
if(shutdown(fd, SHUT_RD) != 0){
1396
error(0, errno, "Failed to shutdown reading from socket \"%s\"",
1397
filename);
1398
}
1399
1400
/* Add the fd to the epoll set */
1401
if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,
1402
&(struct epoll_event){ .events=EPOLLOUT })
1403
!= 0){
1404
error(0, errno, "Failed to add inotify file descriptor %d for"
1405
" socket %s to epoll set", fd, filename);
1406
if(not add_to_queue(queue, task)){
1407
error(0, errno, "Failed to add connect_question_socket for file"
1408
" \"%s\" and socket \"%s\" to queue", question_filename,
1409
filename);
1410
cleanup_task(&task);
1411
} else {
1412
/* Force the added task (connect_question_socket) to run again,
1413
at most one second from now */
1414
if((queue->next_run == 0)
1415
or (queue->next_run > (*current_time + 1000000))){
1416
queue->next_run = *current_time + 1000000;
1417
}
1418
}
1419
return;
1420
}
1421
1422
/* add task send_password_to_socket to queue */
1423
const task_context send_password_to_socket_task = {
1424
.func=send_password_to_socket,
1425
.question_filename=question_filename,
1426
.filename=filename,
1427
.epoll_fd=epoll_fd,
1428
.fd=fd,
1429
.password=password,
1430
.cancelled_filenames=cancelled_filenames,
1431
.mandos_client_exited=mandos_client_exited,
1432
.password_is_read=password_is_read,
1433
.current_time=current_time,
1434
};
1435
1436
if(not add_to_queue(queue, send_password_to_socket_task)){
1437
error(0, errno, "Failed to add send_password_to_socket for"
1438
" file \"%s\" and socket \"%s\" to queue",
1439
question_filename, filename);
1440
cleanup_task(&send_password_to_socket_task);
1441
}
1442
}
1443
1444
__attribute__((nonnull))
1445
void send_password_to_socket(const task_context task,
1446
task_queue *const queue){
1447
char *const question_filename=task.question_filename;
1448
char *const filename=task.filename;
1449
const int epoll_fd=task.epoll_fd;
1450
const int fd=task.fd;
1451
buffer *const password=task.password;
1452
string_set *const cancelled_filenames=task.cancelled_filenames;
1453
bool *const mandos_client_exited = task.mandos_client_exited;
1454
bool *const password_is_read = task.password_is_read;
1455
const mono_microsecs *const current_time = task.current_time;
1456
1457
if(*mandos_client_exited and *password_is_read){
1458
1459
const size_t send_buffer_length = password->length + 2;
1460
char *send_buffer = malloc(send_buffer_length);
1461
if(send_buffer == NULL){
1462
error(0, errno, "Failed to allocate send_buffer");
1463
} else {
1464
if(mlock(send_buffer, send_buffer_length) != 0){
1465
/* Warn but do not treat as fatal error */
1466
if(errno != EPERM and errno != ENOMEM){
1467
error(0, errno, "Failed to lock memory for password"
1468
" buffer");
1469
}
1470
}
1471
/* “[…] send a single datagram to the socket consisting of the
1472
password string either prefixed with "+" or with "-"
1473
depending on whether the password entry was successful or
1474
not. You may but don't have to include a final NUL byte in
1475
your message.
1476
1477
— <https://www.freedesktop.org/wiki/Software/systemd/
1478
PasswordAgents/> (Wed 08 Oct 2014 02:14:28 AM UTC)
1479
*/
1480
send_buffer[0] = '+'; /* Prefix with "+" */
1481
/* Always add an extra NUL */
1482
send_buffer[password->length + 1] = '\0';
1483
if(password->length > 0){
1484
memcpy(send_buffer + 1, password->data, password->length);
1485
}
1486
errno = 0;
1487
ssize_t ssret = send(fd, send_buffer, send_buffer_length,
1488
MSG_NOSIGNAL);
1489
const error_t saved_errno = errno;
1490
#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 25)
1491
explicit_bzero(send_buffer, send_buffer_length);
1492
#else
1493
memset(send_buffer, '\0', send_buffer_length);
1494
#endif
1495
if(munlock(send_buffer, send_buffer_length) != 0){
1496
error(0, errno, "Failed to unlock memory of send buffer");
1497
}
1498
free(send_buffer);
1499
if(ssret < 0 or ssret < (ssize_t)send_buffer_length){
1500
switch(saved_errno){
1501
case EINTR:
1502
case ENOBUFS:
1503
case ENOMEM:
1504
case EADDRINUSE:
1505
case ECONNREFUSED:
1506
case ECONNRESET:
1507
case ENOENT:
1508
case ETOOMANYREFS:
1509
case EAGAIN:
1510
/* Retry, below */
1511
break;
1512
case EMSGSIZE:
1513
error(0, 0, "Password of size %" PRIuMAX " is too big",
1514
(uintmax_t)password->length);
1515
#if __GNUC__ < 7
1516
/* FALLTHROUGH */
1517
#else
1518
__attribute__((fallthrough));
1519
#endif
1520
case 0:
1521
if(ssret >= 0 and ssret < (ssize_t)send_buffer_length){
1522
error(0, 0, "Password only partially sent to socket");
1523
}
1524
#if __GNUC__ < 7
1525
/* FALLTHROUGH */
1526
#else
1527
__attribute__((fallthrough));
1528
#endif
1529
default:
1530
error(0, saved_errno, "Failed to send() to socket %s",
1531
filename);
1532
if(not string_set_add(cancelled_filenames,
1533
question_filename)){
1534
error(0, errno, "Failed to cancel question for file %s",
1535
question_filename);
1536
}
1537
cleanup_task(&task);
1538
return;
1539
}
1540
} else {
1541
/* Success */
1542
cleanup_task(&task);
1543
return;
1544
}
1545
}
1546
}
1547
1548
/* We failed or are not ready yet; retry later */
1549
1550
if(not add_to_queue(queue, task)){
1551
error(0, errno, "Failed to add send_password_to_socket for"
1552
" file %s and socket %s to queue", question_filename,
1553
filename);
1554
cleanup_task(&task);
1555
}
1556
1557
/* Add the fd to the epoll set */
1558
if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,
1559
&(struct epoll_event){ .events=EPOLLOUT })
1560
!= 0){
1561
error(0, errno, "Failed to add socket file descriptor %d for"
1562
" socket %s to epoll set", fd, filename);
1563
/* Force the added task (send_password_to_socket) to run again, at
1564
most one second from now */
1565
if((queue->next_run == 0)
1566
or (queue->next_run > (*current_time + 1000000))){
1567
queue->next_run = *current_time + 1000000;
1568
}
1569
}
1570
}
1571
1572
__attribute__((warn_unused_result))
1573
bool add_existing_questions(task_queue *const queue,
1574
const int epoll_fd,
1575
buffer *const password,
1576
string_set *cancelled_filenames,
1577
const mono_microsecs *const current_time,
1578
bool *const mandos_client_exited,
1579
bool *const password_is_read,
1580
const char *const dirname){
1581
__attribute__((cleanup(cleanup_string)))
1582
char *dir_pattern = NULL;
1583
const int ret = asprintf(&dir_pattern, "%s/ask.*", dirname);
1584
if(ret < 0 or dir_pattern == NULL){
1585
error(0, errno, "Could not create glob pattern for directory %s",
1586
dirname);
1587
return false;
1588
}
1589
__attribute__((cleanup(globfree)))
1590
glob_t question_filenames = {};
1591
switch(glob(dir_pattern, GLOB_ERR | GLOB_NOSORT | GLOB_MARK,
1592
NULL, &question_filenames)){
1593
case GLOB_ABORTED:
1594
default:
1595
error(0, errno, "Failed to open directory %s", dirname);
1596
return false;
1597
case GLOB_NOMATCH:
1598
error(0, errno, "There are no question files in %s", dirname);
1599
return false;
1600
case GLOB_NOSPACE:
1601
error(0, errno, "Could not allocate memory for question file"
1602
" names in %s", dirname);
1603
#if __GNUC__ < 7
1604
/* FALLTHROUGH */
1605
#else
1606
__attribute__((fallthrough));
1607
#endif
1608
case 0:
1609
for(size_t i = 0; i < question_filenames.gl_pathc; i++){
1610
char *const question_filename = strdup(question_filenames
1611
.gl_pathv[i]);
1612
const task_context task = {
1613
.func=open_and_parse_question,
1614
.epoll_fd=epoll_fd,
1615
.question_filename=question_filename,
1616
.filename=question_filename,
1617
.password=password,
1618
.cancelled_filenames=cancelled_filenames,
1619
.current_time=current_time,
1620
.mandos_client_exited=mandos_client_exited,
1621
.password_is_read=password_is_read,
1622
};
1623
1624
if(question_filename == NULL
1625
or not add_to_queue(queue, task)){
1626
error(0, errno, "Failed to add open_and_parse_question for"
1627
" file %s to queue",
1628
question_filenames.gl_pathv[i]);
1629
free(question_filename);
1630
} else {
1631
queue->next_run = 1;
1632
}
1633
}
1634
return true;
1635
}
1636
}
1637
1638
__attribute__((nonnull, warn_unused_result))
1639
bool wait_for_event(const int epoll_fd,
1640
const mono_microsecs queue_next_run,
1641
const mono_microsecs current_time){
1642
__attribute__((const))
1643
int milliseconds_to_wait(const mono_microsecs currtime,
1644
const mono_microsecs nextrun){
1645
if(currtime >= nextrun){
1646
return 0;
1647
}
1648
const uintmax_t wait_time_ms = (nextrun - currtime) / 1000;
1649
if(wait_time_ms > (uintmax_t)INT_MAX){
1650
return INT_MAX;
1651
}
1652
return (int)wait_time_ms;
1653
}
1654
1655
const int wait_time_ms = milliseconds_to_wait(current_time,
1656
queue_next_run);
1657
1658
/* Prepare unblocking of SIGCHLD during epoll_pwait */
1659
sigset_t temporary_unblocked_sigmask;
1660
/* Get current signal mask */
1661
if(pthread_sigmask(-1, NULL, &temporary_unblocked_sigmask) != 0){
1662
return false;
1663
}
1664
/* Remove SIGCHLD from the signal mask */
1665
if(sigdelset(&temporary_unblocked_sigmask, SIGCHLD) != 0){
1666
return false;
1667
}
1668
struct epoll_event events[8]; /* Ignored */
1669
int ret = epoll_pwait(epoll_fd, events,
1670
sizeof(events) / sizeof(struct epoll_event),
1671
queue_next_run == 0 ? -1 : (int)wait_time_ms,
1672
&temporary_unblocked_sigmask);
1673
if(ret < 0 and errno != EINTR){
1674
error(0, errno, "Failed epoll_pwait(epfd=%d, ..., timeout=%d,"
1675
" ...", epoll_fd,
1676
queue_next_run == 0 ? -1 : (int)wait_time_ms);
1677
return false;
1678
}
1679
return clear_all_fds_from_epoll_set(epoll_fd);
1680
}
1681
1682
bool clear_all_fds_from_epoll_set(const int epoll_fd){
1683
/* Create a new empty epoll set */
1684
__attribute__((cleanup(cleanup_close)))
1685
const int new_epoll_fd = epoll_create1(EPOLL_CLOEXEC);
1686
if(new_epoll_fd < 0){
1687
return false;
1688
}
1689
/* dup3() the new epoll set fd over the old one, replacing it */
1690
if(dup3(new_epoll_fd, epoll_fd, O_CLOEXEC) < 0){
1691
return false;
1692
}
1693
return true;
1694
}
1695
1696
__attribute__((nonnull, warn_unused_result))
1697
bool run_queue(task_queue **const queue,
1698
string_set *const cancelled_filenames,
1699
bool *const quit_now){
1700
1701
task_queue *new_queue = create_queue();
1702
if(new_queue == NULL){
1703
return false;
1704
}
1705
1706
__attribute__((cleanup(string_set_clear)))
1707
string_set old_cancelled_filenames = {};
1708
string_set_swap(cancelled_filenames, &old_cancelled_filenames);
1709
1710
/* Declare i outside the for loop, since we might need i after the
1711
loop in case we aborted in the middle */
1712
size_t i;
1713
for(i=0; i < (*queue)->length and not *quit_now; i++){
1714
task_context *const task = &((*queue)->tasks[i]);
1715
const char *const question_filename = task->question_filename;
1716
/* Skip any task referencing a cancelled question filename */
1717
if(question_filename != NULL
1718
and string_set_contains(old_cancelled_filenames,
1719
question_filename)){
1720
cleanup_task(task);
1721
continue;
1722
}
1723
task->func(*task, new_queue);
1724
}
1725
1726
if(*quit_now){
1727
/* we might be in the middle of the queue, so clean up any
1728
remaining tasks in the current queue */
1729
for(; i < (*queue)->length; i++){
1730
cleanup_task(&((*queue)->tasks[i]));
1731
}
1732
free_queue(*queue);
1733
*queue = new_queue;
1734
new_queue = NULL;
1735
return false;
1736
}
1737
free_queue(*queue);
1738
*queue = new_queue;
1739
new_queue = NULL;
1740
1741
return true;
1742
}
1743
1744
/* End of regular code section */
1745
1746
/* Start of tests section; here are the tests for the above code */
1747
1748
/* This "fixture" data structure is used by the test setup and
1749
teardown functions */
1750
typedef struct {
1751
struct sigaction orig_sigaction;
1752
sigset_t orig_sigmask;
1753
} test_fixture;
1754
1755
static void test_setup(test_fixture *fixture,
1756
__attribute__((unused))
1757
gconstpointer user_data){
1758
g_assert_true(setup_signal_handler(&fixture->orig_sigaction));
1759
g_assert_true(block_sigchld(&fixture->orig_sigmask));
1760
}
1761
1762
static void test_teardown(test_fixture *fixture,
1763
__attribute__((unused))
1764
gconstpointer user_data){
1765
g_assert_true(restore_signal_handler(&fixture->orig_sigaction));
1766
g_assert_true(restore_sigmask(&fixture->orig_sigmask));
1767
}
1768
1769
/* Utility function used by tests to search queue for matching task */
1770
__attribute__((pure, nonnull, warn_unused_result))
1771
static task_context *find_matching_task(const task_queue *const queue,
1772
const task_context task){
1773
/* The argument "task" structure is a pattern to match; 0 in any
1774
member means any value matches, otherwise the value must match.
1775
The filename strings are compared by strcmp(), not by pointer. */
1776
for(size_t i = 0; i < queue->length; i++){
1777
task_context *const current_task = queue->tasks+i;
1778
/* Check all members of task_context, if set to a non-zero value.
1779
If a member does not match, continue to next task in queue */
1780
1781
/* task_func *const func */
1782
if(task.func != NULL and current_task->func != task.func){
1783
continue;
1784
}
1785
/* char *const question_filename; */
1786
if(task.question_filename != NULL
1787
and (current_task->question_filename == NULL
1788
or strcmp(current_task->question_filename,
1789
task.question_filename) != 0)){
1790
continue;
1791
}
1792
/* const pid_t pid; */
1793
if(task.pid != 0 and current_task->pid != task.pid){
1794
continue;
1795
}
1796
/* const int epoll_fd; */
1797
if(task.epoll_fd != 0
1798
and current_task->epoll_fd != task.epoll_fd){
1799
continue;
1800
}
1801
/* bool *const quit_now; */
1802
if(task.quit_now != NULL
1803
and current_task->quit_now != task.quit_now){
1804
continue;
1805
}
1806
/* const int fd; */
1807
if(task.fd != 0 and current_task->fd != task.fd){
1808
continue;
1809
}
1810
/* bool *const mandos_client_exited; */
1811
if(task.mandos_client_exited != NULL
1812
and current_task->mandos_client_exited
1813
!= task.mandos_client_exited){
1814
continue;
1815
}
1816
/* buffer *const password; */
1817
if(task.password != NULL
1818
and current_task->password != task.password){
1819
continue;
1820
}
1821
/* bool *const password_is_read; */
1822
if(task.password_is_read != NULL
1823
and current_task->password_is_read != task.password_is_read){
1824
continue;
1825
}
1826
/* char *filename; */
1827
if(task.filename != NULL
1828
and (current_task->filename == NULL
1829
or strcmp(current_task->filename, task.filename) != 0)){
1830
continue;
1831
}
1832
/* string_set *const cancelled_filenames; */
1833
if(task.cancelled_filenames != NULL
1834
and current_task->cancelled_filenames
1835
!= task.cancelled_filenames){
1836
continue;
1837
}
1838
/* const mono_microsecs notafter; */
1839
if(task.notafter != 0
1840
and current_task->notafter != task.notafter){
1841
continue;
1842
}
1843
/* const mono_microsecs *const current_time; */
1844
if(task.current_time != NULL
1845
and current_task->current_time != task.current_time){
1846
continue;
1847
}
1848
/* Current task matches all members; return it */
1849
return current_task;
1850
}
1851
/* No task in queue matches passed pattern task */
1852
return NULL;
1853
}
1854
1855
static void test_create_queue(__attribute__((unused))
1856
test_fixture *fixture,
1857
__attribute__((unused))
1858
gconstpointer user_data){
1859
__attribute__((cleanup(cleanup_queue)))
1860
task_queue *const queue = create_queue();
1861
g_assert_nonnull(queue);
1862
g_assert_null(queue->tasks);
1863
g_assert_true(queue->length == 0);
1864
g_assert_true(queue->next_run == 0);
1865
}
1866
1867
static task_func dummy_func;
1868
1869
static void test_add_to_queue(__attribute__((unused))
1870
test_fixture *fixture,
1871
__attribute__((unused))
1872
gconstpointer user_data){
1873
__attribute__((cleanup(cleanup_queue)))
1874
task_queue *queue = create_queue();
1875
g_assert_nonnull(queue);
1876
1877
g_assert_true(add_to_queue(queue,
1878
(task_context){ .func=dummy_func }));
1879
g_assert_true(queue->length == 1);
1880
g_assert_nonnull(queue->tasks);
1881
g_assert_true(queue->tasks[0].func == dummy_func);
1882
}
1883
1884
static void dummy_func(__attribute__((unused))
1885
const task_context task,
1886
__attribute__((unused))
1887
task_queue *const queue){
1888
}
1889
1890
static void test_queue_has_question_empty(__attribute__((unused))
1891
test_fixture *fixture,
1892
__attribute__((unused))
1893
gconstpointer user_data){
1894
__attribute__((cleanup(cleanup_queue)))
1895
task_queue *queue = create_queue();
1896
g_assert_nonnull(queue);
1897
g_assert_false(queue_has_question(queue));
1898
}
1899
1900
static void test_queue_has_question_false(__attribute__((unused))
1901
test_fixture *fixture,
1902
__attribute__((unused))
1903
gconstpointer user_data){
1904
__attribute__((cleanup(cleanup_queue)))
1905
task_queue *queue = create_queue();
1906
g_assert_nonnull(queue);
1907
g_assert_true(add_to_queue(queue,
1908
(task_context){ .func=dummy_func }));
1909
g_assert_false(queue_has_question(queue));
1910
}
1911
1912
static void test_queue_has_question_true(__attribute__((unused))
1913
test_fixture *fixture,
1914
__attribute__((unused))
1915
gconstpointer user_data){
1916
__attribute__((cleanup(cleanup_queue)))
1917
task_queue *queue = create_queue();
1918
g_assert_nonnull(queue);
1919
char *const question_filename
1920
= strdup("/nonexistent/question_filename");
1921
g_assert_nonnull(question_filename);
1922
task_context task = {
1923
.func=dummy_func,
1924
.question_filename=question_filename,
1925
};
1926
g_assert_true(add_to_queue(queue, task));
1927
g_assert_true(queue_has_question(queue));
1928
}
1929
1930
static void test_queue_has_question_false2(__attribute__((unused))
1931
test_fixture *fixture,
1932
__attribute__((unused))
1933
gconstpointer user_data){
1934
__attribute__((cleanup(cleanup_queue)))
1935
task_queue *queue = create_queue();
1936
g_assert_nonnull(queue);
1937
task_context task = { .func=dummy_func };
1938
g_assert_true(add_to_queue(queue, task));
1939
g_assert_true(add_to_queue(queue, task));
1940
g_assert_cmpint((int)queue->length, ==, 2);
1941
g_assert_false(queue_has_question(queue));
1942
}
1943
1944
static void test_queue_has_question_true2(__attribute__((unused))
1945
test_fixture *fixture,
1946
__attribute__((unused))
1947
gconstpointer user_data){
1948
__attribute__((cleanup(cleanup_queue)))
1949
task_queue *queue = create_queue();
1950
g_assert_nonnull(queue);
1951
task_context task1 = { .func=dummy_func };
1952
g_assert_true(add_to_queue(queue, task1));
1953
char *const question_filename
1954
= strdup("/nonexistent/question_filename");
1955
g_assert_nonnull(question_filename);
1956
task_context task2 = {
1957
.func=dummy_func,
1958
.question_filename=question_filename,
1959
};
1960
g_assert_true(add_to_queue(queue, task2));
1961
g_assert_cmpint((int)queue->length, ==, 2);
1962
g_assert_true(queue_has_question(queue));
1963
}
1964
1965
static void test_cleanup_buffer(__attribute__((unused))
1966
test_fixture *fixture,
1967
__attribute__((unused))
1968
gconstpointer user_data){
1969
buffer buf = {};
1970
1971
const size_t buffersize = 10;
1972
1973
buf.data = malloc(buffersize);
1974
g_assert_nonnull(buf.data);
1975
if(mlock(buf.data, buffersize) != 0){
1976
g_assert_true(errno == EPERM or errno == ENOMEM);
1977
}
1978
1979
cleanup_buffer(&buf);
1980
g_assert_null(buf.data);
1981
}
1982
1983
static
1984
void test_string_set_new_set_contains_nothing(__attribute__((unused))
1985
test_fixture *fixture,
1986
__attribute__((unused))
1987
gconstpointer
1988
user_data){
1989
__attribute__((cleanup(string_set_clear)))
1990
string_set set = {};
1991
g_assert_false(string_set_contains(set, "")); /* Empty string */
1992
g_assert_false(string_set_contains(set, "test_string"));
1993
}
1994
1995
static void
1996
test_string_set_with_added_string_contains_it(__attribute__((unused))
1997
test_fixture *fixture,
1998
__attribute__((unused))
1999
gconstpointer
2000
user_data){
2001
__attribute__((cleanup(string_set_clear)))
2002
string_set set = {};
2003
g_assert_true(string_set_add(&set, "test_string"));
2004
g_assert_true(string_set_contains(set, "test_string"));
2005
}
2006
2007
static void
2008
test_string_set_cleared_does_not_contain_str(__attribute__((unused))
2009
test_fixture *fixture,
2010
__attribute__((unused))
2011
gconstpointer user_data){
2012
__attribute__((cleanup(string_set_clear)))
2013
string_set set = {};
2014
g_assert_true(string_set_add(&set, "test_string"));
2015
string_set_clear(&set);
2016
g_assert_false(string_set_contains(set, "test_string"));
2017
}
2018
2019
static
2020
void test_string_set_swap_one_with_empty(__attribute__((unused))
2021
test_fixture *fixture,
2022
__attribute__((unused))
2023
gconstpointer user_data){
2024
__attribute__((cleanup(string_set_clear)))
2025
string_set set1 = {};
2026
__attribute__((cleanup(string_set_clear)))
2027
string_set set2 = {};
2028
g_assert_true(string_set_add(&set1, "test_string1"));
2029
string_set_swap(&set1, &set2);
2030
g_assert_false(string_set_contains(set1, "test_string1"));
2031
g_assert_true(string_set_contains(set2, "test_string1"));
2032
}
2033
2034
static
2035
void test_string_set_swap_empty_with_one(__attribute__((unused))
2036
test_fixture *fixture,
2037
__attribute__((unused))
2038
gconstpointer user_data){
2039
__attribute__((cleanup(string_set_clear)))
2040
string_set set1 = {};
2041
__attribute__((cleanup(string_set_clear)))
2042
string_set set2 = {};
2043
g_assert_true(string_set_add(&set2, "test_string2"));
2044
string_set_swap(&set1, &set2);
2045
g_assert_true(string_set_contains(set1, "test_string2"));
2046
g_assert_false(string_set_contains(set2, "test_string2"));
2047
}
2048
2049
static void test_string_set_swap_one_with_one(__attribute__((unused))
2050
test_fixture *fixture,
2051
__attribute__((unused))
2052
gconstpointer
2053
user_data){
2054
__attribute__((cleanup(string_set_clear)))
2055
string_set set1 = {};
2056
__attribute__((cleanup(string_set_clear)))
2057
string_set set2 = {};
2058
g_assert_true(string_set_add(&set1, "test_string1"));
2059
g_assert_true(string_set_add(&set2, "test_string2"));
2060
string_set_swap(&set1, &set2);
2061
g_assert_false(string_set_contains(set1, "test_string1"));
2062
g_assert_true(string_set_contains(set1, "test_string2"));
2063
g_assert_false(string_set_contains(set2, "test_string2"));
2064
g_assert_true(string_set_contains(set2, "test_string1"));
2065
}
2066
2067
static bool fd_has_cloexec_and_nonblock(const int);
2068
2069
static bool epoll_set_contains(int, int, uint32_t);
2070
2071
static void test_start_mandos_client(test_fixture *fixture,
2072
__attribute__((unused))
2073
gconstpointer user_data){
2074
2075
bool mandos_client_exited = false;
2076
bool quit_now = false;
2077
__attribute__((cleanup(cleanup_close)))
2078
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2079
g_assert_cmpint(epoll_fd, >=, 0);
2080
__attribute__((cleanup(cleanup_queue)))
2081
task_queue *queue = create_queue();
2082
g_assert_nonnull(queue);
2083
buffer password = {};
2084
bool password_is_read = false;
2085
const char helper_directory[] = "/nonexistent";
2086
const char *const argv[] = { "/bin/true", NULL };
2087
2088
g_assert_true(start_mandos_client(queue, epoll_fd,
2089
&mandos_client_exited, &quit_now,
2090
&password, &password_is_read,
2091
&fixture->orig_sigaction,
2092
fixture->orig_sigmask,
2093
helper_directory, 0, 0, argv));
2094
2095
g_assert_cmpuint((unsigned int)queue->length, >=, 2);
2096
2097
const task_context *const added_wait_task
2098
= find_matching_task(queue, (task_context){
2099
.func=wait_for_mandos_client_exit,
2100
.mandos_client_exited=&mandos_client_exited,
2101
.quit_now=&quit_now,
2102
});
2103
g_assert_nonnull(added_wait_task);
2104
g_assert_cmpint(added_wait_task->pid, >, 0);
2105
g_assert_cmpint(kill(added_wait_task->pid, SIGKILL), ==, 0);
2106
waitpid(added_wait_task->pid, NULL, 0);
2107
2108
const task_context *const added_read_task
2109
= find_matching_task(queue, (task_context){
2110
.func=read_mandos_client_output,
2111
.epoll_fd=epoll_fd,
2112
.password=&password,
2113
.password_is_read=&password_is_read,
2114
.quit_now=&quit_now,
2115
});
2116
g_assert_nonnull(added_read_task);
2117
g_assert_cmpint(added_read_task->fd, >, 2);
2118
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
2119
g_assert_true(epoll_set_contains(epoll_fd, added_read_task->fd,
2120
EPOLLIN | EPOLLRDHUP));
2121
}
2122
2123
static bool fd_has_cloexec_and_nonblock(const int fd){
2124
const int socket_fd_flags = fcntl(fd, F_GETFD, 0);
2125
const int socket_file_flags = fcntl(fd, F_GETFL, 0);
2126
return ((socket_fd_flags >= 0)
2127
and (socket_fd_flags & FD_CLOEXEC)
2128
and (socket_file_flags >= 0)
2129
and (socket_file_flags & O_NONBLOCK));
2130
}
2131
2132
__attribute__((const))
2133
bool is_privileged(void){
2134
uid_t user = getuid() + 1;
2135
if(user == 0){ /* Overflow check */
2136
user++;
2137
}
2138
gid_t group = getuid() + 1;
2139
if(group == 0){ /* Overflow check */
2140
group++;
2141
}
2142
const pid_t pid = fork();
2143
if(pid == 0){ /* Child */
2144
if(setresgid((uid_t)-1, group, group) == -1){
2145
if(errno != EPERM){
2146
error(EXIT_FAILURE, errno, "Failed to setresgid(-1, %" PRIuMAX
2147
", %" PRIuMAX")", (uintmax_t)group, (uintmax_t)group);
2148
}
2149
exit(EXIT_FAILURE);
2150
}
2151
if(setresuid((uid_t)-1, user, user) == -1){
2152
if(errno != EPERM){
2153
error(EXIT_FAILURE, errno, "Failed to setresuid(-1, %" PRIuMAX
2154
", %" PRIuMAX")", (uintmax_t)user, (uintmax_t)user);
2155
}
2156
exit(EXIT_FAILURE);
2157
}
2158
exit(EXIT_SUCCESS);
2159
}
2160
int status;
2161
waitpid(pid, &status, 0);
2162
if(WIFEXITED(status) and (WEXITSTATUS(status) == EXIT_SUCCESS)){
2163
return true;
2164
}
2165
return false;
2166
}
2167
2168
static bool epoll_set_contains(int epoll_fd, int fd, uint32_t events){
2169
/* Only scan for events in this eventmask */
2170
const uint32_t eventmask = EPOLLIN | EPOLLOUT | EPOLLRDHUP;
2171
__attribute__((cleanup(cleanup_string)))
2172
char *fdinfo_name = NULL;
2173
int ret = asprintf(&fdinfo_name, "/proc/self/fdinfo/%d", epoll_fd);
2174
g_assert_cmpint(ret, >, 0);
2175
g_assert_nonnull(fdinfo_name);
2176
2177
FILE *fdinfo = fopen(fdinfo_name, "r");
2178
g_assert_nonnull(fdinfo);
2179
uint32_t reported_events;
2180
buffer line = {};
2181
int found_fd = -1;
2182
2183
do {
2184
if(getline(&line.data, &line.allocated, fdinfo) < 0){
2185
break;
2186
}
2187
/* See proc(5) for format of /proc/PID/fdinfo/FD for epoll fd's */
2188
if(sscanf(line.data, "tfd: %d events: %" SCNx32 " ",
2189
&found_fd, &reported_events) == 2){
2190
if(found_fd == fd){
2191
break;
2192
}
2193
}
2194
} while(not feof(fdinfo) and not ferror(fdinfo));
2195
g_assert_cmpint(fclose(fdinfo), ==, 0);
2196
free(line.data);
2197
if(found_fd != fd){
2198
return false;
2199
}
2200
2201
if(events == 0){
2202
/* Don't check events if none are given */
2203
return true;
2204
}
2205
return (reported_events & eventmask) == (events & eventmask);
2206
}
2207
2208
static void test_start_mandos_client_execv(test_fixture *fixture,
2209
__attribute__((unused))
2210
gconstpointer user_data){
2211
bool mandos_client_exited = false;
2212
bool quit_now = false;
2213
__attribute__((cleanup(cleanup_close)))
2214
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2215
g_assert_cmpint(epoll_fd, >=, 0);
2216
__attribute__((cleanup(cleanup_queue)))
2217
task_queue *queue = create_queue();
2218
g_assert_nonnull(queue);
2219
__attribute__((cleanup(cleanup_buffer)))
2220
buffer password = {};
2221
const char helper_directory[] = "/nonexistent";
2222
/* Can't execv("/", ...), so this should fail */
2223
const char *const argv[] = { "/", NULL };
2224
2225
{
2226
__attribute__((cleanup(cleanup_close)))
2227
const int devnull_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);
2228
g_assert_cmpint(devnull_fd, >=, 0);
2229
__attribute__((cleanup(cleanup_close)))
2230
const int real_stderr_fd = dup(STDERR_FILENO);
2231
g_assert_cmpint(real_stderr_fd, >=, 0);
2232
dup2(devnull_fd, STDERR_FILENO);
2233
2234
const bool success = start_mandos_client(queue, epoll_fd,
2235
&mandos_client_exited,
2236
&quit_now,
2237
&password,
2238
(bool[]){false},
2239
&fixture->orig_sigaction,
2240
fixture->orig_sigmask,
2241
helper_directory, 0, 0,
2242
argv);
2243
dup2(real_stderr_fd, STDERR_FILENO);
2244
g_assert_true(success);
2245
}
2246
g_assert_cmpuint((unsigned int)queue->length, ==, 2);
2247
2248
struct timespec starttime, currtime;
2249
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2250
do {
2251
queue->next_run = 0;
2252
string_set cancelled_filenames = {};
2253
2254
{
2255
__attribute__((cleanup(cleanup_close)))
2256
const int devnull_fd = open("/dev/null",
2257
O_WRONLY | O_CLOEXEC);
2258
g_assert_cmpint(devnull_fd, >=, 0);
2259
__attribute__((cleanup(cleanup_close)))
2260
const int real_stderr_fd = dup(STDERR_FILENO);
2261
g_assert_cmpint(real_stderr_fd, >=, 0);
2262
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2263
dup2(devnull_fd, STDERR_FILENO);
2264
const bool success = run_queue(&queue, &cancelled_filenames,
2265
&quit_now);
2266
dup2(real_stderr_fd, STDERR_FILENO);
2267
if(not success){
2268
break;
2269
}
2270
}
2271
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2272
} while(((queue->length) > 0)
2273
and (not quit_now)
2274
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2275
2276
g_assert_true(quit_now);
2277
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2278
g_assert_true(mandos_client_exited);
2279
}
2280
2281
static void test_start_mandos_client_suid_euid(test_fixture *fixture,
2282
__attribute__((unused))
2283
gconstpointer
2284
user_data){
2285
if(not is_privileged()){
2286
g_test_skip("Not privileged");
2287
return;
2288
}
2289
2290
bool mandos_client_exited = false;
2291
bool quit_now = false;
2292
__attribute__((cleanup(cleanup_close)))
2293
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2294
g_assert_cmpint(epoll_fd, >=, 0);
2295
__attribute__((cleanup(cleanup_queue)))
2296
task_queue *queue = create_queue();
2297
g_assert_nonnull(queue);
2298
__attribute__((cleanup(cleanup_buffer)))
2299
buffer password = {};
2300
bool password_is_read = false;
2301
const char helper_directory[] = "/nonexistent";
2302
const char *const argv[] = { "/usr/bin/id", "--user", NULL };
2303
uid_t user = 1000;
2304
gid_t group = 1001;
2305
2306
const bool success = start_mandos_client(queue, epoll_fd,
2307
&mandos_client_exited,
2308
&quit_now, &password,
2309
&password_is_read,
2310
&fixture->orig_sigaction,
2311
fixture->orig_sigmask,
2312
helper_directory, user,
2313
group, argv);
2314
g_assert_true(success);
2315
g_assert_cmpuint((unsigned int)queue->length, >, 0);
2316
2317
struct timespec starttime, currtime;
2318
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2319
do {
2320
queue->next_run = 0;
2321
string_set cancelled_filenames = {};
2322
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2323
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2324
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2325
} while(((queue->length) > 0)
2326
and (not quit_now)
2327
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2328
2329
g_assert_false(quit_now);
2330
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2331
g_assert_true(mandos_client_exited);
2332
2333
g_assert_true(password_is_read);
2334
g_assert_nonnull(password.data);
2335
2336
uintmax_t id;
2337
g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),
2338
==, 1);
2339
g_assert_true((uid_t)id == id);
2340
2341
g_assert_cmpuint((unsigned int)id, ==, 0);
2342
}
2343
2344
static void test_start_mandos_client_suid_egid(test_fixture *fixture,
2345
__attribute__((unused))
2346
gconstpointer
2347
user_data){
2348
if(not is_privileged()){
2349
g_test_skip("Not privileged");
2350
return;
2351
}
2352
2353
bool mandos_client_exited = false;
2354
bool quit_now = false;
2355
__attribute__((cleanup(cleanup_close)))
2356
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2357
g_assert_cmpint(epoll_fd, >=, 0);
2358
__attribute__((cleanup(cleanup_queue)))
2359
task_queue *queue = create_queue();
2360
g_assert_nonnull(queue);
2361
__attribute__((cleanup(cleanup_buffer)))
2362
buffer password = {};
2363
bool password_is_read = false;
2364
const char helper_directory[] = "/nonexistent";
2365
const char *const argv[] = { "/usr/bin/id", "--group", NULL };
2366
uid_t user = 1000;
2367
gid_t group = 1001;
2368
2369
const bool success = start_mandos_client(queue, epoll_fd,
2370
&mandos_client_exited,
2371
&quit_now, &password,
2372
&password_is_read,
2373
&fixture->orig_sigaction,
2374
fixture->orig_sigmask,
2375
helper_directory, user,
2376
group, argv);
2377
g_assert_true(success);
2378
g_assert_cmpuint((unsigned int)queue->length, >, 0);
2379
2380
struct timespec starttime, currtime;
2381
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2382
do {
2383
queue->next_run = 0;
2384
string_set cancelled_filenames = {};
2385
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2386
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2387
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2388
} while(((queue->length) > 0)
2389
and (not quit_now)
2390
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2391
2392
g_assert_false(quit_now);
2393
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2394
g_assert_true(mandos_client_exited);
2395
2396
g_assert_true(password_is_read);
2397
g_assert_nonnull(password.data);
2398
2399
uintmax_t id;
2400
g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),
2401
==, 1);
2402
g_assert_true((gid_t)id == id);
2403
2404
g_assert_cmpuint((unsigned int)id, ==, 0);
2405
}
2406
2407
static void test_start_mandos_client_suid_ruid(test_fixture *fixture,
2408
__attribute__((unused))
2409
gconstpointer
2410
user_data){
2411
if(not is_privileged()){
2412
g_test_skip("Not privileged");
2413
return;
2414
}
2415
2416
bool mandos_client_exited = false;
2417
bool quit_now = false;
2418
__attribute__((cleanup(cleanup_close)))
2419
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2420
g_assert_cmpint(epoll_fd, >=, 0);
2421
__attribute__((cleanup(cleanup_queue)))
2422
task_queue *queue = create_queue();
2423
g_assert_nonnull(queue);
2424
__attribute__((cleanup(cleanup_buffer)))
2425
buffer password = {};
2426
bool password_is_read = false;
2427
const char helper_directory[] = "/nonexistent";
2428
const char *const argv[] = { "/usr/bin/id", "--user", "--real",
2429
NULL };
2430
uid_t user = 1000;
2431
gid_t group = 1001;
2432
2433
const bool success = start_mandos_client(queue, epoll_fd,
2434
&mandos_client_exited,
2435
&quit_now, &password,
2436
&password_is_read,
2437
&fixture->orig_sigaction,
2438
fixture->orig_sigmask,
2439
helper_directory, user,
2440
group, argv);
2441
g_assert_true(success);
2442
g_assert_cmpuint((unsigned int)queue->length, >, 0);
2443
2444
struct timespec starttime, currtime;
2445
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2446
do {
2447
queue->next_run = 0;
2448
string_set cancelled_filenames = {};
2449
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2450
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2451
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2452
} while(((queue->length) > 0)
2453
and (not quit_now)
2454
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2455
2456
g_assert_false(quit_now);
2457
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2458
g_assert_true(mandos_client_exited);
2459
2460
g_assert_true(password_is_read);
2461
g_assert_nonnull(password.data);
2462
2463
uintmax_t id;
2464
g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),
2465
==, 1);
2466
g_assert_true((uid_t)id == id);
2467
2468
g_assert_cmpuint((unsigned int)id, ==, user);
2469
}
2470
2471
static void test_start_mandos_client_suid_rgid(test_fixture *fixture,
2472
__attribute__((unused))
2473
gconstpointer
2474
user_data){
2475
if(not is_privileged()){
2476
g_test_skip("Not privileged");
2477
return;
2478
}
2479
2480
bool mandos_client_exited = false;
2481
bool quit_now = false;
2482
__attribute__((cleanup(cleanup_close)))
2483
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2484
g_assert_cmpint(epoll_fd, >=, 0);
2485
__attribute__((cleanup(cleanup_queue)))
2486
task_queue *queue = create_queue();
2487
g_assert_nonnull(queue);
2488
__attribute__((cleanup(cleanup_buffer)))
2489
buffer password = {};
2490
bool password_is_read = false;
2491
const char helper_directory[] = "/nonexistent";
2492
const char *const argv[] = { "/usr/bin/id", "--group", "--real",
2493
NULL };
2494
uid_t user = 1000;
2495
gid_t group = 1001;
2496
2497
const bool success = start_mandos_client(queue, epoll_fd,
2498
&mandos_client_exited,
2499
&quit_now, &password,
2500
&password_is_read,
2501
&fixture->orig_sigaction,
2502
fixture->orig_sigmask,
2503
helper_directory, user,
2504
group, argv);
2505
g_assert_true(success);
2506
g_assert_cmpuint((unsigned int)queue->length, >, 0);
2507
2508
struct timespec starttime, currtime;
2509
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2510
do {
2511
queue->next_run = 0;
2512
string_set cancelled_filenames = {};
2513
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2514
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2515
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2516
} while(((queue->length) > 0)
2517
and (not quit_now)
2518
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2519
2520
g_assert_false(quit_now);
2521
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2522
g_assert_true(mandos_client_exited);
2523
2524
g_assert_true(password_is_read);
2525
g_assert_nonnull(password.data);
2526
2527
uintmax_t id;
2528
g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),
2529
==, 1);
2530
g_assert_true((gid_t)id == id);
2531
2532
g_assert_cmpuint((unsigned int)id, ==, group);
2533
}
2534
2535
static void test_start_mandos_client_read(test_fixture *fixture,
2536
__attribute__((unused))
2537
gconstpointer user_data){
2538
bool mandos_client_exited = false;
2539
bool quit_now = false;
2540
__attribute__((cleanup(cleanup_close)))
2541
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2542
g_assert_cmpint(epoll_fd, >=, 0);
2543
__attribute__((cleanup(cleanup_queue)))
2544
task_queue *queue = create_queue();
2545
g_assert_nonnull(queue);
2546
__attribute__((cleanup(cleanup_buffer)))
2547
buffer password = {};
2548
bool password_is_read = false;
2549
const char dummy_test_password[] = "dummy test password";
2550
const char helper_directory[] = "/nonexistent";
2551
const char *const argv[] = { "/bin/echo", "-n", dummy_test_password,
2552
NULL };
2553
2554
const bool success = start_mandos_client(queue, epoll_fd,
2555
&mandos_client_exited,
2556
&quit_now, &password,
2557
&password_is_read,
2558
&fixture->orig_sigaction,
2559
fixture->orig_sigmask,
2560
helper_directory, 0, 0,
2561
argv);
2562
g_assert_true(success);
2563
g_assert_cmpuint((unsigned int)queue->length, >, 0);
2564
2565
struct timespec starttime, currtime;
2566
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2567
do {
2568
queue->next_run = 0;
2569
string_set cancelled_filenames = {};
2570
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2571
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2572
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2573
} while(((queue->length) > 0)
2574
and (not quit_now)
2575
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2576
2577
g_assert_false(quit_now);
2578
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2579
g_assert_true(mandos_client_exited);
2580
2581
g_assert_true(password_is_read);
2582
g_assert_cmpint((int)password.length, ==,
2583
sizeof(dummy_test_password)-1);
2584
g_assert_nonnull(password.data);
2585
g_assert_cmpint(memcmp(dummy_test_password, password.data,
2586
sizeof(dummy_test_password)-1), ==, 0);
2587
}
2588
2589
static
2590
void test_start_mandos_client_helper_directory(test_fixture *fixture,
2591
__attribute__((unused))
2592
gconstpointer
2593
user_data){
2594
bool mandos_client_exited = false;
2595
bool quit_now = false;
2596
__attribute__((cleanup(cleanup_close)))
2597
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2598
g_assert_cmpint(epoll_fd, >=, 0);
2599
__attribute__((cleanup(cleanup_queue)))
2600
task_queue *queue = create_queue();
2601
g_assert_nonnull(queue);
2602
__attribute__((cleanup(cleanup_buffer)))
2603
buffer password = {};
2604
bool password_is_read = false;
2605
const char helper_directory[] = "/nonexistent";
2606
const char *const argv[] = { "/bin/sh", "-c",
2607
"echo -n ${MANDOSPLUGINHELPERDIR}", NULL };
2608
2609
const bool success = start_mandos_client(queue, epoll_fd,
2610
&mandos_client_exited,
2611
&quit_now, &password,
2612
&password_is_read,
2613
&fixture->orig_sigaction,
2614
fixture->orig_sigmask,
2615
helper_directory, 0, 0,
2616
argv);
2617
g_assert_true(success);
2618
g_assert_cmpuint((unsigned int)queue->length, >, 0);
2619
2620
struct timespec starttime, currtime;
2621
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2622
do {
2623
queue->next_run = 0;
2624
string_set cancelled_filenames = {};
2625
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2626
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2627
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2628
} while(((queue->length) > 0)
2629
and (not quit_now)
2630
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2631
2632
g_assert_false(quit_now);
2633
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2634
g_assert_true(mandos_client_exited);
2635
2636
g_assert_true(password_is_read);
2637
g_assert_cmpint((int)password.length, ==,
2638
sizeof(helper_directory)-1);
2639
g_assert_nonnull(password.data);
2640
g_assert_cmpint(memcmp(helper_directory, password.data,
2641
sizeof(helper_directory)-1), ==, 0);
2642
}
2643
2644
__attribute__((nonnull, warn_unused_result))
2645
static bool proc_status_sigblk_to_sigset(const char *const,
2646
sigset_t *const);
2647
2648
static void test_start_mandos_client_sigmask(test_fixture *fixture,
2649
__attribute__((unused))
2650
gconstpointer user_data){
2651
bool mandos_client_exited = false;
2652
bool quit_now = false;
2653
__attribute__((cleanup(cleanup_close)))
2654
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2655
g_assert_cmpint(epoll_fd, >=, 0);
2656
__attribute__((cleanup(cleanup_queue)))
2657
task_queue *queue = create_queue();
2658
g_assert_nonnull(queue);
2659
__attribute__((cleanup(cleanup_buffer)))
2660
buffer password = {};
2661
bool password_is_read = false;
2662
const char helper_directory[] = "/nonexistent";
2663
/* see proc(5) for format of /proc/self/status */
2664
const char *const argv[] = { "/usr/bin/awk",
2665
"$1==\"SigBlk:\"{ print $2 }", "/proc/self/status", NULL };
2666
2667
g_assert_true(start_mandos_client(queue, epoll_fd,
2668
&mandos_client_exited, &quit_now,
2669
&password, &password_is_read,
2670
&fixture->orig_sigaction,
2671
fixture->orig_sigmask,
2672
helper_directory, 0, 0, argv));
2673
2674
struct timespec starttime, currtime;
2675
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2676
do {
2677
queue->next_run = 0;
2678
string_set cancelled_filenames = {};
2679
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2680
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2681
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2682
} while((not (mandos_client_exited and password_is_read))
2683
and (not quit_now)
2684
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2685
g_assert_true(mandos_client_exited);
2686
g_assert_true(password_is_read);
2687
2688
sigset_t parsed_sigmask;
2689
g_assert_true(proc_status_sigblk_to_sigset(password.data,
2690
&parsed_sigmask));
2691
2692
for(int signum = 1; signum < NSIG; signum++){
2693
const bool has_signal = sigismember(&parsed_sigmask, signum);
2694
if(sigismember(&fixture->orig_sigmask, signum)){
2695
g_assert_true(has_signal);
2696
} else {
2697
g_assert_false(has_signal);
2698
}
2699
}
2700
}
2701
2702
__attribute__((nonnull, warn_unused_result))
2703
static bool proc_status_sigblk_to_sigset(const char *const sigblk,
2704
sigset_t *const sigmask){
2705
/* parse /proc/PID/status SigBlk value and convert to a sigset_t */
2706
uintmax_t scanned_sigmask;
2707
if(sscanf(sigblk, "%" SCNxMAX " ", &scanned_sigmask) != 1){
2708
return false;
2709
}
2710
if(sigemptyset(sigmask) != 0){
2711
return false;
2712
}
2713
for(int signum = 1; signum < NSIG; signum++){
2714
if(scanned_sigmask & ((uintmax_t)1 << (signum-1))){
2715
if(sigaddset(sigmask, signum) != 0){
2716
return false;
2717
}
2718
}
2719
}
2720
return true;
2721
}
2722
2723
static void run_task_with_stderr_to_dev_null(const task_context task,
2724
task_queue *const queue);
2725
2726
static
2727
void test_wait_for_mandos_client_exit_badpid(__attribute__((unused))
2728
test_fixture *fixture,
2729
__attribute__((unused))
2730
gconstpointer user_data){
2731
2732
bool mandos_client_exited = false;
2733
bool quit_now = false;
2734
2735
__attribute__((cleanup(cleanup_queue)))
2736
task_queue *queue = create_queue();
2737
g_assert_nonnull(queue);
2738
const task_context task = {
2739
.func=wait_for_mandos_client_exit,
2740
.pid=1,
2741
.mandos_client_exited=&mandos_client_exited,
2742
.quit_now=&quit_now,
2743
};
2744
run_task_with_stderr_to_dev_null(task, queue);
2745
2746
g_assert_false(mandos_client_exited);
2747
g_assert_true(quit_now);
2748
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2749
}
2750
2751
static void run_task_with_stderr_to_dev_null(const task_context task,
2752
task_queue *const queue){
2753
FILE *real_stderr = stderr;
2754
FILE *devnull = fopen("/dev/null", "we");
2755
g_assert_nonnull(devnull);
2756
2757
stderr = devnull;
2758
task.func(task, queue);
2759
stderr = real_stderr;
2760
2761
g_assert_cmpint(fclose(devnull), ==, 0);
2762
}
2763
2764
static
2765
void test_wait_for_mandos_client_exit_noexit(test_fixture *fixture,
2766
__attribute__((unused))
2767
gconstpointer user_data){
2768
bool mandos_client_exited = false;
2769
bool quit_now = false;
2770
2771
pid_t create_eternal_process(void){
2772
const pid_t pid = fork();
2773
if(pid == 0){ /* Child */
2774
if(not restore_signal_handler(&fixture->orig_sigaction)){
2775
_exit(EXIT_FAILURE);
2776
}
2777
if(not restore_sigmask(&fixture->orig_sigmask)){
2778
_exit(EXIT_FAILURE);
2779
}
2780
while(true){
2781
pause();
2782
}
2783
}
2784
return pid;
2785
}
2786
pid_t pid = create_eternal_process();
2787
g_assert_true(pid != -1);
2788
2789
__attribute__((cleanup(cleanup_queue)))
2790
task_queue *queue = create_queue();
2791
g_assert_nonnull(queue);
2792
const task_context task = {
2793
.func=wait_for_mandos_client_exit,
2794
.pid=pid,
2795
.mandos_client_exited=&mandos_client_exited,
2796
.quit_now=&quit_now,
2797
};
2798
task.func(task, queue);
2799
2800
g_assert_false(mandos_client_exited);
2801
g_assert_false(quit_now);
2802
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
2803
2804
g_assert_nonnull(find_matching_task(queue, (task_context){
2805
.func=wait_for_mandos_client_exit,
2806
.pid=task.pid,
2807
.mandos_client_exited=&mandos_client_exited,
2808
.quit_now=&quit_now,
2809
}));
2810
}
2811
2812
static
2813
void test_wait_for_mandos_client_exit_success(test_fixture *fixture,
2814
__attribute__((unused))
2815
gconstpointer
2816
user_data){
2817
bool mandos_client_exited = false;
2818
bool quit_now = false;
2819
2820
pid_t create_successful_process(void){
2821
const pid_t pid = fork();
2822
if(pid == 0){ /* Child */
2823
if(not restore_signal_handler(&fixture->orig_sigaction)){
2824
_exit(EXIT_FAILURE);
2825
}
2826
if(not restore_sigmask(&fixture->orig_sigmask)){
2827
_exit(EXIT_FAILURE);
2828
}
2829
exit(EXIT_SUCCESS);
2830
}
2831
return pid;
2832
}
2833
const pid_t pid = create_successful_process();
2834
g_assert_true(pid != -1);
2835
2836
__attribute__((cleanup(cleanup_queue)))
2837
task_queue *queue = create_queue();
2838
g_assert_nonnull(queue);
2839
const task_context initial_task = {
2840
.func=wait_for_mandos_client_exit,
2841
.pid=pid,
2842
.mandos_client_exited=&mandos_client_exited,
2843
.quit_now=&quit_now,
2844
};
2845
g_assert_true(add_to_queue(queue, initial_task));
2846
2847
struct timespec starttime, currtime;
2848
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2849
__attribute__((cleanup(cleanup_close)))
2850
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2851
do {
2852
queue->next_run = 0;
2853
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2854
g_assert_true(run_queue(&queue, (string_set[]){{}}, &quit_now));
2855
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2856
} while((not mandos_client_exited)
2857
and (not quit_now)
2858
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2859
2860
g_assert_true(mandos_client_exited);
2861
g_assert_false(quit_now);
2862
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2863
}
2864
2865
static
2866
void test_wait_for_mandos_client_exit_failure(test_fixture *fixture,
2867
__attribute__((unused))
2868
gconstpointer
2869
user_data){
2870
bool mandos_client_exited = false;
2871
bool quit_now = false;
2872
2873
pid_t create_failing_process(void){
2874
const pid_t pid = fork();
2875
if(pid == 0){ /* Child */
2876
if(not restore_signal_handler(&fixture->orig_sigaction)){
2877
_exit(EXIT_FAILURE);
2878
}
2879
if(not restore_sigmask(&fixture->orig_sigmask)){
2880
_exit(EXIT_FAILURE);
2881
}
2882
exit(EXIT_FAILURE);
2883
}
2884
return pid;
2885
}
2886
const pid_t pid = create_failing_process();
2887
g_assert_true(pid != -1);
2888
2889
__attribute__((cleanup(string_set_clear)))
2890
string_set cancelled_filenames = {};
2891
__attribute__((cleanup(cleanup_close)))
2892
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2893
g_assert_cmpint(epoll_fd, >=, 0);
2894
__attribute__((cleanup(cleanup_queue)))
2895
task_queue *queue = create_queue();
2896
g_assert_nonnull(queue);
2897
g_assert_true(add_to_queue(queue, (task_context){
2898
.func=wait_for_mandos_client_exit,
2899
.pid=pid,
2900
.mandos_client_exited=&mandos_client_exited,
2901
.quit_now=&quit_now,
2902
}));
2903
2904
g_assert_true(sigismember(&fixture->orig_sigmask, SIGCHLD) == 0);
2905
2906
__attribute__((cleanup(cleanup_close)))
2907
const int devnull_fd = open("/dev/null",
2908
O_WRONLY | O_CLOEXEC);
2909
g_assert_cmpint(devnull_fd, >=, 0);
2910
__attribute__((cleanup(cleanup_close)))
2911
const int real_stderr_fd = dup(STDERR_FILENO);
2912
g_assert_cmpint(real_stderr_fd, >=, 0);
2913
2914
struct timespec starttime, currtime;
2915
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2916
do {
2917
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2918
dup2(devnull_fd, STDERR_FILENO);
2919
const bool success = run_queue(&queue, &cancelled_filenames,
2920
&quit_now);
2921
dup2(real_stderr_fd, STDERR_FILENO);
2922
if(not success){
2923
break;
2924
}
2925
2926
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2927
} while((not mandos_client_exited)
2928
and (not quit_now)
2929
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2930
2931
g_assert_true(quit_now);
2932
g_assert_true(mandos_client_exited);
2933
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2934
}
2935
2936
static
2937
void test_wait_for_mandos_client_exit_killed(test_fixture *fixture,
2938
__attribute__((unused))
2939
gconstpointer user_data){
2940
bool mandos_client_exited = false;
2941
bool quit_now = false;
2942
2943
pid_t create_killed_process(void){
2944
const pid_t pid = fork();
2945
if(pid == 0){ /* Child */
2946
if(not restore_signal_handler(&fixture->orig_sigaction)){
2947
_exit(EXIT_FAILURE);
2948
}
2949
if(not restore_sigmask(&fixture->orig_sigmask)){
2950
_exit(EXIT_FAILURE);
2951
}
2952
while(true){
2953
pause();
2954
}
2955
}
2956
kill(pid, SIGKILL);
2957
return pid;
2958
}
2959
const pid_t pid = create_killed_process();
2960
g_assert_true(pid != -1);
2961
2962
__attribute__((cleanup(string_set_clear)))
2963
string_set cancelled_filenames = {};
2964
__attribute__((cleanup(cleanup_close)))
2965
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2966
g_assert_cmpint(epoll_fd, >=, 0);
2967
__attribute__((cleanup(cleanup_queue)))
2968
task_queue *queue = create_queue();
2969
g_assert_nonnull(queue);
2970
g_assert_true(add_to_queue(queue, (task_context){
2971
.func=wait_for_mandos_client_exit,
2972
.pid=pid,
2973
.mandos_client_exited=&mandos_client_exited,
2974
.quit_now=&quit_now,
2975
}));
2976
2977
__attribute__((cleanup(cleanup_close)))
2978
const int devnull_fd = open("/dev/null",
2979
O_WRONLY | O_CLOEXEC);
2980
g_assert_cmpint(devnull_fd, >=, 0);
2981
__attribute__((cleanup(cleanup_close)))
2982
const int real_stderr_fd = dup(STDERR_FILENO);
2983
g_assert_cmpint(real_stderr_fd, >=, 0);
2984
2985
struct timespec starttime, currtime;
2986
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2987
do {
2988
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2989
dup2(devnull_fd, STDERR_FILENO);
2990
const bool success = run_queue(&queue, &cancelled_filenames,
2991
&quit_now);
2992
dup2(real_stderr_fd, STDERR_FILENO);
2993
if(not success){
2994
break;
2995
}
2996
2997
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2998
} while((not mandos_client_exited)
2999
and (not quit_now)
3000
and ((currtime.tv_sec - starttime.tv_sec) < 10));
3001
3002
g_assert_true(mandos_client_exited);
3003
g_assert_true(quit_now);
3004
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3005
}
3006
3007
static bool epoll_set_does_not_contain(int, int);
3008
3009
static
3010
void test_read_mandos_client_output_readerror(__attribute__((unused))
3011
test_fixture *fixture,
3012
__attribute__((unused))
3013
gconstpointer
3014
user_data){
3015
__attribute__((cleanup(cleanup_close)))
3016
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3017
g_assert_cmpint(epoll_fd, >=, 0);
3018
3019
__attribute__((cleanup(cleanup_buffer)))
3020
buffer password = {};
3021
3022
/* Reading /proc/self/mem from offset 0 will always give EIO */
3023
const int fd = open("/proc/self/mem", O_RDONLY | O_CLOEXEC);
3024
3025
bool password_is_read = false;
3026
bool quit_now = false;
3027
__attribute__((cleanup(cleanup_queue)))
3028
task_queue *queue = create_queue();
3029
g_assert_nonnull(queue);
3030
3031
task_context task = {
3032
.func=read_mandos_client_output,
3033
.epoll_fd=epoll_fd,
3034
.fd=fd,
3035
.password=&password,
3036
.password_is_read=&password_is_read,
3037
.quit_now=&quit_now,
3038
};
3039
run_task_with_stderr_to_dev_null(task, queue);
3040
g_assert_false(password_is_read);
3041
g_assert_cmpint((int)password.length, ==, 0);
3042
g_assert_true(quit_now);
3043
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3044
3045
g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));
3046
3047
g_assert_cmpint(close(fd), ==, -1);
3048
}
3049
3050
static bool epoll_set_does_not_contain(int epoll_fd, int fd){
3051
return not epoll_set_contains(epoll_fd, fd, 0);
3052
}
3053
3054
static
3055
void test_read_mandos_client_output_nodata(__attribute__((unused))
3056
test_fixture *fixture,
3057
__attribute__((unused))
3058
gconstpointer user_data){
3059
__attribute__((cleanup(cleanup_close)))
3060
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3061
g_assert_cmpint(epoll_fd, >=, 0);
3062
3063
int pipefds[2];
3064
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
3065
3066
__attribute__((cleanup(cleanup_buffer)))
3067
buffer password = {};
3068
3069
bool password_is_read = false;
3070
bool quit_now = false;
3071
__attribute__((cleanup(cleanup_queue)))
3072
task_queue *queue = create_queue();
3073
g_assert_nonnull(queue);
3074
3075
task_context task = {
3076
.func=read_mandos_client_output,
3077
.epoll_fd=epoll_fd,
3078
.fd=pipefds[0],
3079
.password=&password,
3080
.password_is_read=&password_is_read,
3081
.quit_now=&quit_now,
3082
};
3083
task.func(task, queue);
3084
g_assert_false(password_is_read);
3085
g_assert_cmpint((int)password.length, ==, 0);
3086
g_assert_false(quit_now);
3087
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
3088
3089
g_assert_nonnull(find_matching_task(queue, (task_context){
3090
.func=read_mandos_client_output,
3091
.epoll_fd=epoll_fd,
3092
.fd=pipefds[0],
3093
.password=&password,
3094
.password_is_read=&password_is_read,
3095
.quit_now=&quit_now,
3096
}));
3097
3098
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
3099
EPOLLIN | EPOLLRDHUP));
3100
3101
g_assert_cmpint(close(pipefds[1]), ==, 0);
3102
}
3103
3104
static void test_read_mandos_client_output_eof(__attribute__((unused))
3105
test_fixture *fixture,
3106
__attribute__((unused))
3107
gconstpointer
3108
user_data){
3109
__attribute__((cleanup(cleanup_close)))
3110
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3111
g_assert_cmpint(epoll_fd, >=, 0);
3112
3113
int pipefds[2];
3114
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
3115
g_assert_cmpint(close(pipefds[1]), ==, 0);
3116
3117
__attribute__((cleanup(cleanup_buffer)))
3118
buffer password = {};
3119
3120
bool password_is_read = false;
3121
bool quit_now = false;
3122
__attribute__((cleanup(cleanup_queue)))
3123
task_queue *queue = create_queue();
3124
g_assert_nonnull(queue);
3125
3126
task_context task = {
3127
.func=read_mandos_client_output,
3128
.epoll_fd=epoll_fd,
3129
.fd=pipefds[0],
3130
.password=&password,
3131
.password_is_read=&password_is_read,
3132
.quit_now=&quit_now,
3133
};
3134
task.func(task, queue);
3135
g_assert_true(password_is_read);
3136
g_assert_cmpint((int)password.length, ==, 0);
3137
g_assert_false(quit_now);
3138
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3139
3140
g_assert_true(epoll_set_does_not_contain(epoll_fd, pipefds[0]));
3141
3142
g_assert_cmpint(close(pipefds[0]), ==, -1);
3143
}
3144
3145
static
3146
void test_read_mandos_client_output_once(__attribute__((unused))
3147
test_fixture *fixture,
3148
__attribute__((unused))
3149
gconstpointer user_data){
3150
__attribute__((cleanup(cleanup_close)))
3151
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3152
g_assert_cmpint(epoll_fd, >=, 0);
3153
3154
int pipefds[2];
3155
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
3156
3157
const char dummy_test_password[] = "dummy test password";
3158
/* Start with a pre-allocated buffer */
3159
__attribute__((cleanup(cleanup_buffer)))
3160
buffer password = {
3161
.data=malloc(sizeof(dummy_test_password)),
3162
.length=0,
3163
.allocated=sizeof(dummy_test_password),
3164
};
3165
g_assert_nonnull(password.data);
3166
if(mlock(password.data, password.allocated) != 0){
3167
g_assert_true(errno == EPERM or errno == ENOMEM);
3168
}
3169
3170
bool password_is_read = false;
3171
bool quit_now = false;
3172
__attribute__((cleanup(cleanup_queue)))
3173
task_queue *queue = create_queue();
3174
g_assert_nonnull(queue);
3175
3176
g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);
3177
g_assert_cmpint((int)write(pipefds[1], dummy_test_password,
3178
sizeof(dummy_test_password)),
3179
==, (int)sizeof(dummy_test_password));
3180
3181
task_context task = {
3182
.func=read_mandos_client_output,
3183
.epoll_fd=epoll_fd,
3184
.fd=pipefds[0],
3185
.password=&password,
3186
.password_is_read=&password_is_read,
3187
.quit_now=&quit_now,
3188
};
3189
task.func(task, queue);
3190
3191
g_assert_false(password_is_read);
3192
g_assert_cmpint((int)password.length, ==,
3193
(int)sizeof(dummy_test_password));
3194
g_assert_nonnull(password.data);
3195
g_assert_cmpint(memcmp(password.data, dummy_test_password,
3196
sizeof(dummy_test_password)), ==, 0);
3197
3198
g_assert_false(quit_now);
3199
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
3200
3201
g_assert_nonnull(find_matching_task(queue, (task_context){
3202
.func=read_mandos_client_output,
3203
.epoll_fd=epoll_fd,
3204
.fd=pipefds[0],
3205
.password=&password,
3206
.password_is_read=&password_is_read,
3207
.quit_now=&quit_now,
3208
}));
3209
3210
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
3211
EPOLLIN | EPOLLRDHUP));
3212
3213
g_assert_cmpint(close(pipefds[1]), ==, 0);
3214
}
3215
3216
static
3217
void test_read_mandos_client_output_malloc(__attribute__((unused))
3218
test_fixture *fixture,
3219
__attribute__((unused))
3220
gconstpointer user_data){
3221
__attribute__((cleanup(cleanup_close)))
3222
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3223
g_assert_cmpint(epoll_fd, >=, 0);
3224
3225
int pipefds[2];
3226
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
3227
3228
const char dummy_test_password[] = "dummy test password";
3229
/* Start with an empty buffer */
3230
__attribute__((cleanup(cleanup_buffer)))
3231
buffer password = {};
3232
3233
bool password_is_read = false;
3234
bool quit_now = false;
3235
__attribute__((cleanup(cleanup_queue)))
3236
task_queue *queue = create_queue();
3237
g_assert_nonnull(queue);
3238
3239
g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);
3240
g_assert_cmpint((int)write(pipefds[1], dummy_test_password,
3241
sizeof(dummy_test_password)),
3242
==, (int)sizeof(dummy_test_password));
3243
3244
task_context task = {
3245
.func=read_mandos_client_output,
3246
.epoll_fd=epoll_fd,
3247
.fd=pipefds[0],
3248
.password=&password,
3249
.password_is_read=&password_is_read,
3250
.quit_now=&quit_now,
3251
};
3252
task.func(task, queue);
3253
3254
g_assert_false(password_is_read);
3255
g_assert_cmpint((int)password.length, ==,
3256
(int)sizeof(dummy_test_password));
3257
g_assert_nonnull(password.data);
3258
g_assert_cmpint(memcmp(password.data, dummy_test_password,
3259
sizeof(dummy_test_password)), ==, 0);
3260
3261
g_assert_false(quit_now);
3262
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
3263
3264
g_assert_nonnull(find_matching_task(queue, (task_context){
3265
.func=read_mandos_client_output,
3266
.epoll_fd=epoll_fd,
3267
.fd=pipefds[0],
3268
.password=&password,
3269
.password_is_read=&password_is_read,
3270
.quit_now=&quit_now,
3271
}));
3272
3273
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
3274
EPOLLIN | EPOLLRDHUP));
3275
3276
g_assert_cmpint(close(pipefds[1]), ==, 0);
3277
}
3278
3279
static
3280
void test_read_mandos_client_output_append(__attribute__((unused))
3281
test_fixture *fixture,
3282
__attribute__((unused))
3283
gconstpointer user_data){
3284
__attribute__((cleanup(cleanup_close)))
3285
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3286
g_assert_cmpint(epoll_fd, >=, 0);
3287
3288
int pipefds[2];
3289
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
3290
3291
const char dummy_test_password[] = "dummy test password";
3292
__attribute__((cleanup(cleanup_buffer)))
3293
buffer password = {
3294
.data=malloc(PIPE_BUF),
3295
.length=PIPE_BUF,
3296
.allocated=PIPE_BUF,
3297
};
3298
g_assert_nonnull(password.data);
3299
if(mlock(password.data, password.allocated) != 0){
3300
g_assert_true(errno == EPERM or errno == ENOMEM);
3301
}
3302
3303
memset(password.data, 'x', PIPE_BUF);
3304
char password_expected[PIPE_BUF];
3305
memcpy(password_expected, password.data, PIPE_BUF);
3306
3307
bool password_is_read = false;
3308
bool quit_now = false;
3309
__attribute__((cleanup(cleanup_queue)))
3310
task_queue *queue = create_queue();
3311
g_assert_nonnull(queue);
3312
3313
g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);
3314
g_assert_cmpint((int)write(pipefds[1], dummy_test_password,
3315
sizeof(dummy_test_password)),
3316
==, (int)sizeof(dummy_test_password));
3317
3318
task_context task = {
3319
.func=read_mandos_client_output,
3320
.epoll_fd=epoll_fd,
3321
.fd=pipefds[0],
3322
.password=&password,
3323
.password_is_read=&password_is_read,
3324
.quit_now=&quit_now,
3325
};
3326
task.func(task, queue);
3327
3328
g_assert_false(password_is_read);
3329
g_assert_cmpint((int)password.length, ==,
3330
PIPE_BUF + sizeof(dummy_test_password));
3331
g_assert_nonnull(password.data);
3332
g_assert_cmpint(memcmp(password_expected, password.data, PIPE_BUF),
3333
==, 0);
3334
g_assert_cmpint(memcmp(password.data + PIPE_BUF,
3335
dummy_test_password,
3336
sizeof(dummy_test_password)), ==, 0);
3337
g_assert_false(quit_now);
3338
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
3339
3340
g_assert_nonnull(find_matching_task(queue, (task_context){
3341
.func=read_mandos_client_output,
3342
.epoll_fd=epoll_fd,
3343
.fd=pipefds[0],
3344
.password=&password,
3345
.password_is_read=&password_is_read,
3346
.quit_now=&quit_now,
3347
}));
3348
3349
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
3350
EPOLLIN | EPOLLRDHUP));
3351
}
3352
3353
static char *make_temporary_directory(void);
3354
3355
static void test_add_inotify_dir_watch(__attribute__((unused))
3356
test_fixture *fixture,
3357
__attribute__((unused))
3358
gconstpointer user_data){
3359
__attribute__((cleanup(cleanup_close)))
3360
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3361
g_assert_cmpint(epoll_fd, >=, 0);
3362
__attribute__((cleanup(cleanup_queue)))
3363
task_queue *queue = create_queue();
3364
g_assert_nonnull(queue);
3365
__attribute__((cleanup(string_set_clear)))
3366
string_set cancelled_filenames = {};
3367
const mono_microsecs current_time = 0;
3368
3369
bool quit_now = false;
3370
buffer password = {};
3371
bool mandos_client_exited = false;
3372
bool password_is_read = false;
3373
3374
__attribute__((cleanup(cleanup_string)))
3375
char *tempdir = make_temporary_directory();
3376
g_assert_nonnull(tempdir);
3377
3378
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3379
&password, tempdir,
3380
&cancelled_filenames,
3381
¤t_time,
3382
&mandos_client_exited,
3383
&password_is_read));
3384
3385
g_assert_cmpuint((unsigned int)queue->length, >, 0);
3386
3387
const task_context *const added_read_task
3388
= find_matching_task(queue, (task_context){
3389
.func=read_inotify_event,
3390
.epoll_fd=epoll_fd,
3391
.quit_now=&quit_now,
3392
.password=&password,
3393
.filename=tempdir,
3394
.cancelled_filenames=&cancelled_filenames,
3395
.current_time=¤t_time,
3396
.mandos_client_exited=&mandos_client_exited,
3397
.password_is_read=&password_is_read,
3398
});
3399
g_assert_nonnull(added_read_task);
3400
3401
g_assert_cmpint(added_read_task->fd, >, 2);
3402
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
3403
g_assert_true(epoll_set_contains(added_read_task->epoll_fd,
3404
added_read_task->fd,
3405
EPOLLIN | EPOLLRDHUP));
3406
3407
g_assert_cmpint(rmdir(tempdir), ==, 0);
3408
}
3409
3410
static char *make_temporary_directory(void){
3411
char *name = strdup("/tmp/mandosXXXXXX");
3412
g_assert_nonnull(name);
3413
char *result = mkdtemp(name);
3414
if(result == NULL){
3415
free(name);
3416
}
3417
return result;
3418
}
3419
3420
static void test_add_inotify_dir_watch_fail(__attribute__((unused))
3421
test_fixture *fixture,
3422
__attribute__((unused))
3423
gconstpointer user_data){
3424
__attribute__((cleanup(cleanup_close)))
3425
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3426
g_assert_cmpint(epoll_fd, >=, 0);
3427
__attribute__((cleanup(cleanup_queue)))
3428
task_queue *queue = create_queue();
3429
g_assert_nonnull(queue);
3430
__attribute__((cleanup(string_set_clear)))
3431
string_set cancelled_filenames = {};
3432
const mono_microsecs current_time = 0;
3433
3434
bool quit_now = false;
3435
buffer password = {};
3436
bool mandos_client_exited = false;
3437
bool password_is_read = false;
3438
3439
const char nonexistent_dir[] = "/nonexistent";
3440
3441
FILE *real_stderr = stderr;
3442
FILE *devnull = fopen("/dev/null", "we");
3443
g_assert_nonnull(devnull);
3444
stderr = devnull;
3445
g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3446
&password, nonexistent_dir,
3447
&cancelled_filenames,
3448
¤t_time,
3449
&mandos_client_exited,
3450
&password_is_read));
3451
stderr = real_stderr;
3452
g_assert_cmpint(fclose(devnull), ==, 0);
3453
3454
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3455
}
3456
3457
static void test_add_inotify_dir_watch_nondir(__attribute__((unused))
3458
test_fixture *fixture,
3459
__attribute__((unused))
3460
gconstpointer
3461
user_data){
3462
__attribute__((cleanup(cleanup_close)))
3463
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3464
g_assert_cmpint(epoll_fd, >=, 0);
3465
__attribute__((cleanup(cleanup_queue)))
3466
task_queue *queue = create_queue();
3467
g_assert_nonnull(queue);
3468
__attribute__((cleanup(string_set_clear)))
3469
string_set cancelled_filenames = {};
3470
const mono_microsecs current_time = 0;
3471
3472
bool quit_now = false;
3473
buffer password = {};
3474
bool mandos_client_exited = false;
3475
bool password_is_read = false;
3476
3477
const char not_a_directory[] = "/dev/tty";
3478
3479
FILE *real_stderr = stderr;
3480
FILE *devnull = fopen("/dev/null", "we");
3481
g_assert_nonnull(devnull);
3482
stderr = devnull;
3483
g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3484
&password, not_a_directory,
3485
&cancelled_filenames,
3486
¤t_time,
3487
&mandos_client_exited,
3488
&password_is_read));
3489
stderr = real_stderr;
3490
g_assert_cmpint(fclose(devnull), ==, 0);
3491
3492
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3493
}
3494
3495
static void test_add_inotify_dir_watch_EAGAIN(__attribute__((unused))
3496
test_fixture *fixture,
3497
__attribute__((unused))
3498
gconstpointer
3499
user_data){
3500
__attribute__((cleanup(cleanup_close)))
3501
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3502
g_assert_cmpint(epoll_fd, >=, 0);
3503
__attribute__((cleanup(cleanup_queue)))
3504
task_queue *queue = create_queue();
3505
g_assert_nonnull(queue);
3506
__attribute__((cleanup(string_set_clear)))
3507
string_set cancelled_filenames = {};
3508
const mono_microsecs current_time = 0;
3509
3510
bool quit_now = false;
3511
buffer password = {};
3512
bool mandos_client_exited = false;
3513
bool password_is_read = false;
3514
3515
__attribute__((cleanup(cleanup_string)))
3516
char *tempdir = make_temporary_directory();
3517
g_assert_nonnull(tempdir);
3518
3519
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3520
&password, tempdir,
3521
&cancelled_filenames,
3522
¤t_time,
3523
&mandos_client_exited,
3524
&password_is_read));
3525
3526
g_assert_cmpuint((unsigned int)queue->length, >, 0);
3527
3528
const task_context *const added_read_task
3529
= find_matching_task(queue,
3530
(task_context){ .func=read_inotify_event });
3531
g_assert_nonnull(added_read_task);
3532
3533
g_assert_cmpint(added_read_task->fd, >, 2);
3534
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
3535
3536
/* "sufficient to read at least one event." - inotify(7) */
3537
const size_t ievent_size = (sizeof(struct inotify_event)
3538
+ NAME_MAX + 1);
3539
struct inotify_event *ievent = malloc(ievent_size);
3540
g_assert_nonnull(ievent);
3541
3542
g_assert_cmpint(read(added_read_task->fd, ievent, ievent_size), ==,
3543
-1);
3544
g_assert_cmpint(errno, ==, EAGAIN);
3545
3546
free(ievent);
3547
3548
g_assert_cmpint(rmdir(tempdir), ==, 0);
3549
}
3550
3551
static char *make_temporary_file_in_directory(const char
3552
*const dir);
3553
3554
static
3555
void test_add_inotify_dir_watch_IN_CLOSE_WRITE(__attribute__((unused))
3556
test_fixture *fixture,
3557
__attribute__((unused))
3558
gconstpointer
3559
user_data){
3560
__attribute__((cleanup(cleanup_close)))
3561
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3562
g_assert_cmpint(epoll_fd, >=, 0);
3563
__attribute__((cleanup(cleanup_queue)))
3564
task_queue *queue = create_queue();
3565
g_assert_nonnull(queue);
3566
__attribute__((cleanup(string_set_clear)))
3567
string_set cancelled_filenames = {};
3568
const mono_microsecs current_time = 0;
3569
3570
bool quit_now = false;
3571
buffer password = {};
3572
bool mandos_client_exited = false;
3573
bool password_is_read = false;
3574
3575
__attribute__((cleanup(cleanup_string)))
3576
char *tempdir = make_temporary_directory();
3577
g_assert_nonnull(tempdir);
3578
3579
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3580
&password, tempdir,
3581
&cancelled_filenames,
3582
¤t_time,
3583
&mandos_client_exited,
3584
&password_is_read));
3585
3586
g_assert_cmpuint((unsigned int)queue->length, >, 0);
3587
3588
const task_context *const added_read_task
3589
= find_matching_task(queue,
3590
(task_context){ .func=read_inotify_event });
3591
g_assert_nonnull(added_read_task);
3592
3593
g_assert_cmpint(added_read_task->fd, >, 2);
3594
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
3595
3596
__attribute__((cleanup(cleanup_string)))
3597
char *filename = make_temporary_file_in_directory(tempdir);
3598
g_assert_nonnull(filename);
3599
3600
/* "sufficient to read at least one event." - inotify(7) */
3601
const size_t ievent_size = (sizeof(struct inotify_event)
3602
+ NAME_MAX + 1);
3603
struct inotify_event *ievent = malloc(ievent_size);
3604
g_assert_nonnull(ievent);
3605
3606
ssize_t read_size = 0;
3607
read_size = read(added_read_task->fd, ievent, ievent_size);
3608
3609
g_assert_cmpint((int)read_size, >, 0);
3610
g_assert_true(ievent->mask & IN_CLOSE_WRITE);
3611
g_assert_cmpstr(ievent->name, ==, basename(filename));
3612
3613
free(ievent);
3614
3615
g_assert_cmpint(unlink(filename), ==, 0);
3616
g_assert_cmpint(rmdir(tempdir), ==, 0);
3617
}
3618
3619
static char *make_temporary_prefixed_file_in_directory(const char
3620
*const prefix,
3621
const char
3622
*const dir){
3623
char *filename = NULL;
3624
g_assert_cmpint(asprintf(&filename, "%s/%sXXXXXX", dir, prefix),
3625
>, 0);
3626
g_assert_nonnull(filename);
3627
const int fd = mkostemp(filename, O_CLOEXEC);
3628
g_assert_cmpint(fd, >=, 0);
3629
g_assert_cmpint(close(fd), ==, 0);
3630
return filename;
3631
}
3632
3633
static char *make_temporary_file_in_directory(const char
3634
*const dir){
3635
return make_temporary_prefixed_file_in_directory("temp", dir);
3636
}
3637
3638
static
3639
void test_add_inotify_dir_watch_IN_MOVED_TO(__attribute__((unused))
3640
test_fixture *fixture,
3641
__attribute__((unused))
3642
gconstpointer user_data){
3643
__attribute__((cleanup(cleanup_close)))
3644
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3645
g_assert_cmpint(epoll_fd, >=, 0);
3646
__attribute__((cleanup(cleanup_queue)))
3647
task_queue *queue = create_queue();
3648
g_assert_nonnull(queue);
3649
__attribute__((cleanup(string_set_clear)))
3650
string_set cancelled_filenames = {};
3651
const mono_microsecs current_time = 0;
3652
3653
bool quit_now = false;
3654
buffer password = {};
3655
bool mandos_client_exited = false;
3656
bool password_is_read = false;
3657
3658
__attribute__((cleanup(cleanup_string)))
3659
char *watchdir = make_temporary_directory();
3660
g_assert_nonnull(watchdir);
3661
3662
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3663
&password, watchdir,
3664
&cancelled_filenames,
3665
¤t_time,
3666
&mandos_client_exited,
3667
&password_is_read));
3668
3669
g_assert_cmpuint((unsigned int)queue->length, >, 0);
3670
3671
const task_context *const added_read_task
3672
= find_matching_task(queue,
3673
(task_context){ .func=read_inotify_event });
3674
g_assert_nonnull(added_read_task);
3675
3676
g_assert_cmpint(added_read_task->fd, >, 2);
3677
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
3678
3679
char *sourcedir = make_temporary_directory();
3680
g_assert_nonnull(sourcedir);
3681
3682
__attribute__((cleanup(cleanup_string)))
3683
char *filename = make_temporary_file_in_directory(sourcedir);
3684
g_assert_nonnull(filename);
3685
3686
__attribute__((cleanup(cleanup_string)))
3687
char *targetfilename = NULL;
3688
g_assert_cmpint(asprintf(&targetfilename, "%s/%s", watchdir,
3689
basename(filename)), >, 0);
3690
g_assert_nonnull(targetfilename);
3691
3692
g_assert_cmpint(rename(filename, targetfilename), ==, 0);
3693
g_assert_cmpint(rmdir(sourcedir), ==, 0);
3694
free(sourcedir);
3695
3696
/* "sufficient to read at least one event." - inotify(7) */
3697
const size_t ievent_size = (sizeof(struct inotify_event)
3698
+ NAME_MAX + 1);
3699
struct inotify_event *ievent = malloc(ievent_size);
3700
g_assert_nonnull(ievent);
3701
3702
ssize_t read_size = read(added_read_task->fd, ievent, ievent_size);
3703
3704
g_assert_cmpint((int)read_size, >, 0);
3705
g_assert_true(ievent->mask & IN_MOVED_TO);
3706
g_assert_cmpstr(ievent->name, ==, basename(targetfilename));
3707
3708
free(ievent);
3709
3710
g_assert_cmpint(unlink(targetfilename), ==, 0);
3711
g_assert_cmpint(rmdir(watchdir), ==, 0);
3712
}
3713
3714
static
3715
void test_add_inotify_dir_watch_IN_MOVED_FROM(__attribute__((unused))
3716
test_fixture *fixture,
3717
__attribute__((unused))
3718
gconstpointer
3719
user_data){
3720
__attribute__((cleanup(cleanup_close)))
3721
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3722
g_assert_cmpint(epoll_fd, >=, 0);
3723
__attribute__((cleanup(cleanup_queue)))
3724
task_queue *queue = create_queue();
3725
g_assert_nonnull(queue);
3726
__attribute__((cleanup(string_set_clear)))
3727
string_set cancelled_filenames = {};
3728
const mono_microsecs current_time = 0;
3729
3730
bool quit_now = false;
3731
buffer password = {};
3732
bool mandos_client_exited = false;
3733
bool password_is_read = false;
3734
3735
__attribute__((cleanup(cleanup_string)))
3736
char *tempdir = make_temporary_directory();
3737
g_assert_nonnull(tempdir);
3738
3739
__attribute__((cleanup(cleanup_string)))
3740
char *tempfilename = make_temporary_file_in_directory(tempdir);
3741
g_assert_nonnull(tempfilename);
3742
3743
__attribute__((cleanup(cleanup_string)))
3744
char *targetdir = make_temporary_directory();
3745
g_assert_nonnull(targetdir);
3746
3747
__attribute__((cleanup(cleanup_string)))
3748
char *targetfilename = NULL;
3749
g_assert_cmpint(asprintf(&targetfilename, "%s/%s", targetdir,
3750
basename(tempfilename)), >, 0);
3751
g_assert_nonnull(targetfilename);
3752
3753
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3754
&password, tempdir,
3755
&cancelled_filenames,
3756
¤t_time,
3757
&mandos_client_exited,
3758
&password_is_read));
3759
3760
g_assert_cmpint(rename(tempfilename, targetfilename), ==, 0);
3761
3762
const task_context *const added_read_task
3763
= find_matching_task(queue,
3764
(task_context){ .func=read_inotify_event });
3765
g_assert_nonnull(added_read_task);
3766
3767
/* "sufficient to read at least one event." - inotify(7) */
3768
const size_t ievent_size = (sizeof(struct inotify_event)
3769
+ NAME_MAX + 1);
3770
struct inotify_event *ievent = malloc(ievent_size);
3771
g_assert_nonnull(ievent);
3772
3773
ssize_t read_size = read(added_read_task->fd, ievent, ievent_size);
3774
3775
g_assert_cmpint((int)read_size, >, 0);
3776
g_assert_true(ievent->mask & IN_MOVED_FROM);
3777
g_assert_cmpstr(ievent->name, ==, basename(tempfilename));
3778
3779
free(ievent);
3780
3781
g_assert_cmpint(unlink(targetfilename), ==, 0);
3782
g_assert_cmpint(rmdir(targetdir), ==, 0);
3783
g_assert_cmpint(rmdir(tempdir), ==, 0);
3784
}
3785
3786
static
3787
void test_add_inotify_dir_watch_IN_DELETE(__attribute__((unused))
3788
test_fixture *fixture,
3789
__attribute__((unused))
3790
gconstpointer user_data){
3791
__attribute__((cleanup(cleanup_close)))
3792
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3793
g_assert_cmpint(epoll_fd, >=, 0);
3794
__attribute__((cleanup(cleanup_queue)))
3795
task_queue *queue = create_queue();
3796
g_assert_nonnull(queue);
3797
__attribute__((cleanup(string_set_clear)))
3798
string_set cancelled_filenames = {};
3799
const mono_microsecs current_time = 0;
3800
3801
bool quit_now = false;
3802
buffer password = {};
3803
bool mandos_client_exited = false;
3804
bool password_is_read = false;
3805
3806
__attribute__((cleanup(cleanup_string)))
3807
char *tempdir = make_temporary_directory();
3808
g_assert_nonnull(tempdir);
3809
3810
__attribute__((cleanup(cleanup_string)))
3811
char *tempfile = make_temporary_file_in_directory(tempdir);
3812
g_assert_nonnull(tempfile);
3813
3814
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3815
&password, tempdir,
3816
&cancelled_filenames,
3817
¤t_time,
3818
&mandos_client_exited,
3819
&password_is_read));
3820
g_assert_cmpint(unlink(tempfile), ==, 0);
3821
3822
g_assert_cmpuint((unsigned int)queue->length, >, 0);
3823
3824
const task_context *const added_read_task
3825
= find_matching_task(queue,
3826
(task_context){ .func=read_inotify_event });
3827
g_assert_nonnull(added_read_task);
3828
3829
g_assert_cmpint(added_read_task->fd, >, 2);
3830
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
3831
3832
/* "sufficient to read at least one event." - inotify(7) */
3833
const size_t ievent_size = (sizeof(struct inotify_event)
3834
+ NAME_MAX + 1);
3835
struct inotify_event *ievent = malloc(ievent_size);
3836
g_assert_nonnull(ievent);
3837
3838
ssize_t read_size = 0;
3839
read_size = read(added_read_task->fd, ievent, ievent_size);
3840
3841
g_assert_cmpint((int)read_size, >, 0);
3842
g_assert_true(ievent->mask & IN_DELETE);
3843
g_assert_cmpstr(ievent->name, ==, basename(tempfile));
3844
3845
free(ievent);
3846
3847
g_assert_cmpint(rmdir(tempdir), ==, 0);
3848
}
3849
3850
static
3851
void test_add_inotify_dir_watch_IN_EXCL_UNLINK(__attribute__((unused))
3852
test_fixture *fixture,
3853
__attribute__((unused))
3854
gconstpointer
3855
user_data){
3856
__attribute__((cleanup(cleanup_close)))
3857
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3858
g_assert_cmpint(epoll_fd, >=, 0);
3859
__attribute__((cleanup(cleanup_queue)))
3860
task_queue *queue = create_queue();
3861
g_assert_nonnull(queue);
3862
__attribute__((cleanup(string_set_clear)))
3863
string_set cancelled_filenames = {};
3864
const mono_microsecs current_time = 0;
3865
3866
bool quit_now = false;
3867
buffer password = {};
3868
bool mandos_client_exited = false;
3869
bool password_is_read = false;
3870
3871
__attribute__((cleanup(cleanup_string)))
3872
char *tempdir = make_temporary_directory();
3873
g_assert_nonnull(tempdir);
3874
3875
__attribute__((cleanup(cleanup_string)))
3876
char *tempfile = make_temporary_file_in_directory(tempdir);
3877
g_assert_nonnull(tempfile);
3878
int tempfile_fd = open(tempfile, O_WRONLY | O_CLOEXEC | O_NOCTTY
3879
| O_NOFOLLOW);
3880
g_assert_cmpint(tempfile_fd, >, 2);
3881
3882
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3883
&password, tempdir,
3884
&cancelled_filenames,
3885
¤t_time,
3886
&mandos_client_exited,
3887
&password_is_read));
3888
g_assert_cmpint(unlink(tempfile), ==, 0);
3889
3890
g_assert_cmpuint((unsigned int)queue->length, >, 0);
3891
3892
const task_context *const added_read_task
3893
= find_matching_task(queue,
3894
(task_context){ .func=read_inotify_event });
3895
g_assert_nonnull(added_read_task);
3896
3897
g_assert_cmpint(added_read_task->fd, >, 2);
3898
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
3899
3900
/* "sufficient to read at least one event." - inotify(7) */
3901
const size_t ievent_size = (sizeof(struct inotify_event)
3902
+ NAME_MAX + 1);
3903
struct inotify_event *ievent = malloc(ievent_size);
3904
g_assert_nonnull(ievent);
3905
3906
ssize_t read_size = 0;
3907
read_size = read(added_read_task->fd, ievent, ievent_size);
3908
3909
g_assert_cmpint((int)read_size, >, 0);
3910
g_assert_true(ievent->mask & IN_DELETE);
3911
g_assert_cmpstr(ievent->name, ==, basename(tempfile));
3912
3913
g_assert_cmpint(close(tempfile_fd), ==, 0);
3914
3915
/* IN_EXCL_UNLINK should make the closing of the previously unlinked
3916
file not appear as an ievent, so we should not see it now. */
3917
read_size = read(added_read_task->fd, ievent, ievent_size);
3918
g_assert_cmpint((int)read_size, ==, -1);
3919
g_assert_true(errno == EAGAIN);
3920
3921
free(ievent);
3922
3923
g_assert_cmpint(rmdir(tempdir), ==, 0);
3924
}
3925
3926
static void test_read_inotify_event_readerror(__attribute__((unused))
3927
test_fixture *fixture,
3928
__attribute__((unused))
3929
gconstpointer
3930
user_data){
3931
__attribute__((cleanup(cleanup_close)))
3932
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3933
g_assert_cmpint(epoll_fd, >=, 0);
3934
const mono_microsecs current_time = 0;
3935
3936
/* Reading /proc/self/mem from offset 0 will always result in EIO */
3937
const int fd = open("/proc/self/mem", O_RDONLY | O_CLOEXEC);
3938
3939
bool quit_now = false;
3940
__attribute__((cleanup(cleanup_queue)))
3941
task_queue *queue = create_queue();
3942
g_assert_nonnull(queue);
3943
3944
task_context task = {
3945
.func=read_inotify_event,
3946
.epoll_fd=epoll_fd,
3947
.fd=fd,
3948
.quit_now=&quit_now,
3949
.filename=strdup("/nonexistent"),
3950
.cancelled_filenames = &(string_set){},
3951
.notafter=0,
3952
.current_time=¤t_time,
3953
};
3954
g_assert_nonnull(task.filename);
3955
run_task_with_stderr_to_dev_null(task, queue);
3956
g_assert_true(quit_now);
3957
g_assert_true(queue->next_run == 0);
3958
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3959
3960
g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));
3961
3962
g_assert_cmpint(close(fd), ==, -1);
3963
}
3964
3965
static void test_read_inotify_event_bad_epoll(__attribute__((unused))
3966
test_fixture *fixture,
3967
__attribute__((unused))
3968
gconstpointer
3969
user_data){
3970
const mono_microsecs current_time = 17;
3971
3972
int pipefds[2];
3973
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
3974
const int epoll_fd = pipefds[0]; /* This will obviously fail */
3975
3976
bool quit_now = false;
3977
buffer password = {};
3978
bool mandos_client_exited = false;
3979
bool password_is_read = false;
3980
__attribute__((cleanup(cleanup_queue)))
3981
task_queue *queue = create_queue();
3982
g_assert_nonnull(queue);
3983
3984
task_context task = {
3985
.func=read_inotify_event,
3986
.epoll_fd=epoll_fd,
3987
.fd=pipefds[0],
3988
.quit_now=&quit_now,
3989
.password=&password,
3990
.filename=strdup("/nonexistent"),
3991
.cancelled_filenames = &(string_set){},
3992
.notafter=0,
3993
.current_time=¤t_time,
3994
.mandos_client_exited=&mandos_client_exited,
3995
.password_is_read=&password_is_read,
3996
};
3997
g_assert_nonnull(task.filename);
3998
run_task_with_stderr_to_dev_null(task, queue);
3999
4000
g_assert_nonnull(find_matching_task(queue, task));
4001
g_assert_true(queue->next_run == 1000000 + current_time);
4002
4003
g_assert_cmpint(close(pipefds[0]), ==, 0);
4004
g_assert_cmpint(close(pipefds[1]), ==, 0);
4005
}
4006
4007
static void test_read_inotify_event_nodata(__attribute__((unused))
4008
test_fixture *fixture,
4009
__attribute__((unused))
4010
gconstpointer user_data){
4011
__attribute__((cleanup(cleanup_close)))
4012
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4013
g_assert_cmpint(epoll_fd, >=, 0);
4014
const mono_microsecs current_time = 0;
4015
4016
int pipefds[2];
4017
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4018
4019
bool quit_now = false;
4020
buffer password = {};
4021
bool mandos_client_exited = false;
4022
bool password_is_read = false;
4023
__attribute__((cleanup(cleanup_queue)))
4024
task_queue *queue = create_queue();
4025
g_assert_nonnull(queue);
4026
4027
task_context task = {
4028
.func=read_inotify_event,
4029
.epoll_fd=epoll_fd,
4030
.fd=pipefds[0],
4031
.quit_now=&quit_now,
4032
.password=&password,
4033
.filename=strdup("/nonexistent"),
4034
.cancelled_filenames = &(string_set){},
4035
.notafter=0,
4036
.current_time=¤t_time,
4037
.mandos_client_exited=&mandos_client_exited,
4038
.password_is_read=&password_is_read,
4039
};
4040
g_assert_nonnull(task.filename);
4041
task.func(task, queue);
4042
g_assert_false(quit_now);
4043
g_assert_true(queue->next_run == 0);
4044
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4045
4046
g_assert_nonnull(find_matching_task(queue, (task_context){
4047
.func=read_inotify_event,
4048
.epoll_fd=epoll_fd,
4049
.fd=pipefds[0],
4050
.quit_now=&quit_now,
4051
.password=&password,
4052
.filename=task.filename,
4053
.cancelled_filenames=task.cancelled_filenames,
4054
.current_time=¤t_time,
4055
.mandos_client_exited=&mandos_client_exited,
4056
.password_is_read=&password_is_read,
4057
}));
4058
4059
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4060
EPOLLIN | EPOLLRDHUP));
4061
4062
g_assert_cmpint(close(pipefds[1]), ==, 0);
4063
}
4064
4065
static void test_read_inotify_event_eof(__attribute__((unused))
4066
test_fixture *fixture,
4067
__attribute__((unused))
4068
gconstpointer user_data){
4069
__attribute__((cleanup(cleanup_close)))
4070
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4071
g_assert_cmpint(epoll_fd, >=, 0);
4072
const mono_microsecs current_time = 0;
4073
4074
int pipefds[2];
4075
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4076
g_assert_cmpint(close(pipefds[1]), ==, 0);
4077
4078
bool quit_now = false;
4079
buffer password = {};
4080
__attribute__((cleanup(cleanup_queue)))
4081
task_queue *queue = create_queue();
4082
g_assert_nonnull(queue);
4083
4084
task_context task = {
4085
.func=read_inotify_event,
4086
.epoll_fd=epoll_fd,
4087
.fd=pipefds[0],
4088
.quit_now=&quit_now,
4089
.password=&password,
4090
.filename=strdup("/nonexistent"),
4091
.cancelled_filenames = &(string_set){},
4092
.notafter=0,
4093
.current_time=¤t_time,
4094
};
4095
run_task_with_stderr_to_dev_null(task, queue);
4096
g_assert_true(quit_now);
4097
g_assert_true(queue->next_run == 0);
4098
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
4099
4100
g_assert_true(epoll_set_does_not_contain(epoll_fd, pipefds[0]));
4101
4102
g_assert_cmpint(close(pipefds[0]), ==, -1);
4103
}
4104
4105
static
4106
void test_read_inotify_event_IN_CLOSE_WRITE(__attribute__((unused))
4107
test_fixture *fixture,
4108
__attribute__((unused))
4109
gconstpointer user_data){
4110
__attribute__((cleanup(cleanup_close)))
4111
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4112
g_assert_cmpint(epoll_fd, >=, 0);
4113
const mono_microsecs current_time = 0;
4114
4115
int pipefds[2];
4116
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4117
4118
/* "sufficient to read at least one event." - inotify(7) */
4119
const size_t ievent_max_size = (sizeof(struct inotify_event)
4120
+ NAME_MAX + 1);
4121
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4122
struct {
4123
struct inotify_event event;
4124
char name_buffer[NAME_MAX + 1];
4125
} ievent_buffer;
4126
struct inotify_event *const ievent = &ievent_buffer.event;
4127
4128
const char dummy_file_name[] = "ask.dummy_file_name";
4129
ievent->mask = IN_CLOSE_WRITE;
4130
ievent->len = sizeof(dummy_file_name);
4131
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4132
const size_t ievent_size = (sizeof(struct inotify_event)
4133
+ sizeof(dummy_file_name));
4134
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4135
==, ievent_size);
4136
g_assert_cmpint(close(pipefds[1]), ==, 0);
4137
4138
bool quit_now = false;
4139
buffer password = {};
4140
bool mandos_client_exited = false;
4141
bool password_is_read = false;
4142
__attribute__((cleanup(cleanup_queue)))
4143
task_queue *queue = create_queue();
4144
g_assert_nonnull(queue);
4145
4146
task_context task = {
4147
.func=read_inotify_event,
4148
.epoll_fd=epoll_fd,
4149
.fd=pipefds[0],
4150
.quit_now=&quit_now,
4151
.password=&password,
4152
.filename=strdup("/nonexistent"),
4153
.cancelled_filenames = &(string_set){},
4154
.notafter=0,
4155
.current_time=¤t_time,
4156
.mandos_client_exited=&mandos_client_exited,
4157
.password_is_read=&password_is_read,
4158
};
4159
task.func(task, queue);
4160
g_assert_false(quit_now);
4161
g_assert_true(queue->next_run != 0);
4162
g_assert_cmpuint((unsigned int)queue->length, >=, 1);
4163
4164
g_assert_nonnull(find_matching_task(queue, (task_context){
4165
.func=read_inotify_event,
4166
.epoll_fd=epoll_fd,
4167
.fd=pipefds[0],
4168
.quit_now=&quit_now,
4169
.password=&password,
4170
.filename=task.filename,
4171
.cancelled_filenames=task.cancelled_filenames,
4172
.current_time=¤t_time,
4173
.mandos_client_exited=&mandos_client_exited,
4174
.password_is_read=&password_is_read,
4175
}));
4176
4177
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4178
EPOLLIN | EPOLLRDHUP));
4179
4180
g_assert_cmpuint((unsigned int)queue->length, >=, 2);
4181
4182
__attribute__((cleanup(cleanup_string)))
4183
char *filename = NULL;
4184
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4185
dummy_file_name), >, 0);
4186
g_assert_nonnull(filename);
4187
g_assert_nonnull(find_matching_task(queue, (task_context){
4188
.func=open_and_parse_question,
4189
.epoll_fd=epoll_fd,
4190
.filename=filename,
4191
.question_filename=filename,
4192
.password=&password,
4193
.cancelled_filenames=task.cancelled_filenames,
4194
.current_time=¤t_time,
4195
.mandos_client_exited=&mandos_client_exited,
4196
.password_is_read=&password_is_read,
4197
}));
4198
}
4199
4200
static
4201
void test_read_inotify_event_IN_MOVED_TO(__attribute__((unused))
4202
test_fixture *fixture,
4203
__attribute__((unused))
4204
gconstpointer user_data){
4205
__attribute__((cleanup(cleanup_close)))
4206
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4207
g_assert_cmpint(epoll_fd, >=, 0);
4208
const mono_microsecs current_time = 0;
4209
4210
int pipefds[2];
4211
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4212
4213
/* "sufficient to read at least one event." - inotify(7) */
4214
const size_t ievent_max_size = (sizeof(struct inotify_event)
4215
+ NAME_MAX + 1);
4216
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4217
struct {
4218
struct inotify_event event;
4219
char name_buffer[NAME_MAX + 1];
4220
} ievent_buffer;
4221
struct inotify_event *const ievent = &ievent_buffer.event;
4222
4223
const char dummy_file_name[] = "ask.dummy_file_name";
4224
ievent->mask = IN_MOVED_TO;
4225
ievent->len = sizeof(dummy_file_name);
4226
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4227
const size_t ievent_size = (sizeof(struct inotify_event)
4228
+ sizeof(dummy_file_name));
4229
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4230
==, ievent_size);
4231
g_assert_cmpint(close(pipefds[1]), ==, 0);
4232
4233
bool quit_now = false;
4234
buffer password = {};
4235
bool mandos_client_exited = false;
4236
bool password_is_read = false;
4237
__attribute__((cleanup(cleanup_queue)))
4238
task_queue *queue = create_queue();
4239
g_assert_nonnull(queue);
4240
4241
task_context task = {
4242
.func=read_inotify_event,
4243
.epoll_fd=epoll_fd,
4244
.fd=pipefds[0],
4245
.quit_now=&quit_now,
4246
.password=&password,
4247
.filename=strdup("/nonexistent"),
4248
.cancelled_filenames = &(string_set){},
4249
.notafter=0,
4250
.current_time=¤t_time,
4251
.mandos_client_exited=&mandos_client_exited,
4252
.password_is_read=&password_is_read,
4253
};
4254
task.func(task, queue);
4255
g_assert_false(quit_now);
4256
g_assert_true(queue->next_run != 0);
4257
g_assert_cmpuint((unsigned int)queue->length, >=, 1);
4258
4259
g_assert_nonnull(find_matching_task(queue, (task_context){
4260
.func=read_inotify_event,
4261
.epoll_fd=epoll_fd,
4262
.fd=pipefds[0],
4263
.quit_now=&quit_now,
4264
.password=&password,
4265
.filename=task.filename,
4266
.cancelled_filenames=task.cancelled_filenames,
4267
.current_time=¤t_time,
4268
.mandos_client_exited=&mandos_client_exited,
4269
.password_is_read=&password_is_read,
4270
}));
4271
4272
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4273
EPOLLIN | EPOLLRDHUP));
4274
4275
g_assert_cmpuint((unsigned int)queue->length, >=, 2);
4276
4277
__attribute__((cleanup(cleanup_string)))
4278
char *filename = NULL;
4279
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4280
dummy_file_name), >, 0);
4281
g_assert_nonnull(filename);
4282
g_assert_nonnull(find_matching_task(queue, (task_context){
4283
.func=open_and_parse_question,
4284
.epoll_fd=epoll_fd,
4285
.filename=filename,
4286
.question_filename=filename,
4287
.password=&password,
4288
.cancelled_filenames=task.cancelled_filenames,
4289
.current_time=¤t_time,
4290
.mandos_client_exited=&mandos_client_exited,
4291
.password_is_read=&password_is_read,
4292
}));
4293
}
4294
4295
static
4296
void test_read_inotify_event_IN_MOVED_FROM(__attribute__((unused))
4297
test_fixture *fixture,
4298
__attribute__((unused))
4299
gconstpointer user_data){
4300
__attribute__((cleanup(cleanup_close)))
4301
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4302
g_assert_cmpint(epoll_fd, >=, 0);
4303
__attribute__((cleanup(string_set_clear)))
4304
string_set cancelled_filenames = {};
4305
const mono_microsecs current_time = 0;
4306
4307
int pipefds[2];
4308
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4309
4310
/* "sufficient to read at least one event." - inotify(7) */
4311
const size_t ievent_max_size = (sizeof(struct inotify_event)
4312
+ NAME_MAX + 1);
4313
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4314
struct {
4315
struct inotify_event event;
4316
char name_buffer[NAME_MAX + 1];
4317
} ievent_buffer;
4318
struct inotify_event *const ievent = &ievent_buffer.event;
4319
4320
const char dummy_file_name[] = "ask.dummy_file_name";
4321
ievent->mask = IN_MOVED_FROM;
4322
ievent->len = sizeof(dummy_file_name);
4323
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4324
const size_t ievent_size = (sizeof(struct inotify_event)
4325
+ sizeof(dummy_file_name));
4326
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4327
==, ievent_size);
4328
g_assert_cmpint(close(pipefds[1]), ==, 0);
4329
4330
bool quit_now = false;
4331
buffer password = {};
4332
bool mandos_client_exited = false;
4333
bool password_is_read = false;
4334
__attribute__((cleanup(cleanup_queue)))
4335
task_queue *queue = create_queue();
4336
g_assert_nonnull(queue);
4337
4338
task_context task = {
4339
.func=read_inotify_event,
4340
.epoll_fd=epoll_fd,
4341
.fd=pipefds[0],
4342
.quit_now=&quit_now,
4343
.password=&password,
4344
.filename=strdup("/nonexistent"),
4345
.cancelled_filenames=&cancelled_filenames,
4346
.current_time=¤t_time,
4347
.mandos_client_exited=&mandos_client_exited,
4348
.password_is_read=&password_is_read,
4349
};
4350
task.func(task, queue);
4351
g_assert_false(quit_now);
4352
g_assert_true(queue->next_run == 0);
4353
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4354
4355
g_assert_nonnull(find_matching_task(queue, (task_context){
4356
.func=read_inotify_event,
4357
.epoll_fd=epoll_fd,
4358
.fd=pipefds[0],
4359
.quit_now=&quit_now,
4360
.password=&password,
4361
.filename=task.filename,
4362
.cancelled_filenames=&cancelled_filenames,
4363
.current_time=¤t_time,
4364
.mandos_client_exited=&mandos_client_exited,
4365
.password_is_read=&password_is_read,
4366
}));
4367
4368
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4369
EPOLLIN | EPOLLRDHUP));
4370
4371
__attribute__((cleanup(cleanup_string)))
4372
char *filename = NULL;
4373
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4374
dummy_file_name), >, 0);
4375
g_assert_nonnull(filename);
4376
g_assert_true(string_set_contains(*task.cancelled_filenames,
4377
filename));
4378
}
4379
4380
static void test_read_inotify_event_IN_DELETE(__attribute__((unused))
4381
test_fixture *fixture,
4382
__attribute__((unused))
4383
gconstpointer
4384
user_data){
4385
__attribute__((cleanup(cleanup_close)))
4386
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4387
g_assert_cmpint(epoll_fd, >=, 0);
4388
__attribute__((cleanup(string_set_clear)))
4389
string_set cancelled_filenames = {};
4390
const mono_microsecs current_time = 0;
4391
4392
int pipefds[2];
4393
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4394
4395
/* "sufficient to read at least one event." - inotify(7) */
4396
const size_t ievent_max_size = (sizeof(struct inotify_event)
4397
+ NAME_MAX + 1);
4398
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4399
struct {
4400
struct inotify_event event;
4401
char name_buffer[NAME_MAX + 1];
4402
} ievent_buffer;
4403
struct inotify_event *const ievent = &ievent_buffer.event;
4404
4405
const char dummy_file_name[] = "ask.dummy_file_name";
4406
ievent->mask = IN_DELETE;
4407
ievent->len = sizeof(dummy_file_name);
4408
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4409
const size_t ievent_size = (sizeof(struct inotify_event)
4410
+ sizeof(dummy_file_name));
4411
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4412
==, ievent_size);
4413
g_assert_cmpint(close(pipefds[1]), ==, 0);
4414
4415
bool quit_now = false;
4416
buffer password = {};
4417
bool mandos_client_exited = false;
4418
bool password_is_read = false;
4419
__attribute__((cleanup(cleanup_queue)))
4420
task_queue *queue = create_queue();
4421
g_assert_nonnull(queue);
4422
4423
task_context task = {
4424
.func=read_inotify_event,
4425
.epoll_fd=epoll_fd,
4426
.fd=pipefds[0],
4427
.quit_now=&quit_now,
4428
.password=&password,
4429
.filename=strdup("/nonexistent"),
4430
.cancelled_filenames=&cancelled_filenames,
4431
.current_time=¤t_time,
4432
.mandos_client_exited=&mandos_client_exited,
4433
.password_is_read=&password_is_read,
4434
};
4435
task.func(task, queue);
4436
g_assert_false(quit_now);
4437
g_assert_true(queue->next_run == 0);
4438
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4439
4440
g_assert_nonnull(find_matching_task(queue, (task_context){
4441
.func=read_inotify_event,
4442
.epoll_fd=epoll_fd,
4443
.fd=pipefds[0],
4444
.quit_now=&quit_now,
4445
.password=&password,
4446
.filename=task.filename,
4447
.cancelled_filenames=&cancelled_filenames,
4448
.current_time=¤t_time,
4449
.mandos_client_exited=&mandos_client_exited,
4450
.password_is_read=&password_is_read,
4451
}));
4452
4453
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4454
EPOLLIN | EPOLLRDHUP));
4455
4456
__attribute__((cleanup(cleanup_string)))
4457
char *filename = NULL;
4458
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4459
dummy_file_name), >, 0);
4460
g_assert_nonnull(filename);
4461
g_assert_true(string_set_contains(*task.cancelled_filenames,
4462
filename));
4463
}
4464
4465
static void
4466
test_read_inotify_event_IN_CLOSE_WRITE_badname(__attribute__((unused))
4467
test_fixture *fixture,
4468
__attribute__((unused))
4469
gconstpointer
4470
user_data){
4471
__attribute__((cleanup(cleanup_close)))
4472
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4473
g_assert_cmpint(epoll_fd, >=, 0);
4474
const mono_microsecs current_time = 0;
4475
4476
int pipefds[2];
4477
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4478
4479
/* "sufficient to read at least one event." - inotify(7) */
4480
const size_t ievent_max_size = (sizeof(struct inotify_event)
4481
+ NAME_MAX + 1);
4482
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4483
struct {
4484
struct inotify_event event;
4485
char name_buffer[NAME_MAX + 1];
4486
} ievent_buffer;
4487
struct inotify_event *const ievent = &ievent_buffer.event;
4488
4489
const char dummy_file_name[] = "ignored.dummy_file_name";
4490
ievent->mask = IN_CLOSE_WRITE;
4491
ievent->len = sizeof(dummy_file_name);
4492
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4493
const size_t ievent_size = (sizeof(struct inotify_event)
4494
+ sizeof(dummy_file_name));
4495
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4496
==, ievent_size);
4497
g_assert_cmpint(close(pipefds[1]), ==, 0);
4498
4499
bool quit_now = false;
4500
buffer password = {};
4501
bool mandos_client_exited = false;
4502
bool password_is_read = false;
4503
__attribute__((cleanup(cleanup_queue)))
4504
task_queue *queue = create_queue();
4505
g_assert_nonnull(queue);
4506
4507
task_context task = {
4508
.func=read_inotify_event,
4509
.epoll_fd=epoll_fd,
4510
.fd=pipefds[0],
4511
.quit_now=&quit_now,
4512
.password=&password,
4513
.filename=strdup("/nonexistent"),
4514
.cancelled_filenames = &(string_set){},
4515
.notafter=0,
4516
.current_time=¤t_time,
4517
.mandos_client_exited=&mandos_client_exited,
4518
.password_is_read=&password_is_read,
4519
};
4520
task.func(task, queue);
4521
g_assert_false(quit_now);
4522
g_assert_true(queue->next_run == 0);
4523
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4524
4525
g_assert_nonnull(find_matching_task(queue, (task_context){
4526
.func=read_inotify_event,
4527
.epoll_fd=epoll_fd,
4528
.fd=pipefds[0],
4529
.quit_now=&quit_now,
4530
.password=&password,
4531
.filename=task.filename,
4532
.cancelled_filenames=task.cancelled_filenames,
4533
.current_time=¤t_time,
4534
.mandos_client_exited=&mandos_client_exited,
4535
.password_is_read=&password_is_read,
4536
}));
4537
4538
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4539
EPOLLIN | EPOLLRDHUP));
4540
}
4541
4542
static void
4543
test_read_inotify_event_IN_MOVED_TO_badname(__attribute__((unused))
4544
test_fixture *fixture,
4545
__attribute__((unused))
4546
gconstpointer user_data){
4547
__attribute__((cleanup(cleanup_close)))
4548
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4549
g_assert_cmpint(epoll_fd, >=, 0);
4550
const mono_microsecs current_time = 0;
4551
4552
int pipefds[2];
4553
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4554
4555
/* "sufficient to read at least one event." - inotify(7) */
4556
const size_t ievent_max_size = (sizeof(struct inotify_event)
4557
+ NAME_MAX + 1);
4558
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4559
struct {
4560
struct inotify_event event;
4561
char name_buffer[NAME_MAX + 1];
4562
} ievent_buffer;
4563
struct inotify_event *const ievent = &ievent_buffer.event;
4564
4565
const char dummy_file_name[] = "ignored.dummy_file_name";
4566
ievent->mask = IN_MOVED_TO;
4567
ievent->len = sizeof(dummy_file_name);
4568
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4569
const size_t ievent_size = (sizeof(struct inotify_event)
4570
+ sizeof(dummy_file_name));
4571
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4572
==, ievent_size);
4573
g_assert_cmpint(close(pipefds[1]), ==, 0);
4574
4575
bool quit_now = false;
4576
buffer password = {};
4577
bool mandos_client_exited = false;
4578
bool password_is_read = false;
4579
__attribute__((cleanup(cleanup_queue)))
4580
task_queue *queue = create_queue();
4581
g_assert_nonnull(queue);
4582
4583
task_context task = {
4584
.func=read_inotify_event,
4585
.epoll_fd=epoll_fd,
4586
.fd=pipefds[0],
4587
.quit_now=&quit_now,
4588
.password=&password,
4589
.filename=strdup("/nonexistent"),
4590
.cancelled_filenames = &(string_set){},
4591
.notafter=0,
4592
.current_time=¤t_time,
4593
.mandos_client_exited=&mandos_client_exited,
4594
.password_is_read=&password_is_read,
4595
};
4596
task.func(task, queue);
4597
g_assert_false(quit_now);
4598
g_assert_true(queue->next_run == 0);
4599
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4600
4601
g_assert_nonnull(find_matching_task(queue, (task_context){
4602
.func=read_inotify_event,
4603
.epoll_fd=epoll_fd,
4604
.fd=pipefds[0],
4605
.quit_now=&quit_now,
4606
.password=&password,
4607
.filename=task.filename,
4608
.cancelled_filenames=task.cancelled_filenames,
4609
.current_time=¤t_time,
4610
.mandos_client_exited=&mandos_client_exited,
4611
.password_is_read=&password_is_read,
4612
}));
4613
4614
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4615
EPOLLIN | EPOLLRDHUP));
4616
}
4617
4618
static void
4619
test_read_inotify_event_IN_MOVED_FROM_badname(__attribute__((unused))
4620
test_fixture *fixture,
4621
__attribute__((unused))
4622
gconstpointer
4623
user_data){
4624
__attribute__((cleanup(cleanup_close)))
4625
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4626
g_assert_cmpint(epoll_fd, >=, 0);
4627
__attribute__((cleanup(string_set_clear)))
4628
string_set cancelled_filenames = {};
4629
const mono_microsecs current_time = 0;
4630
4631
int pipefds[2];
4632
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4633
4634
/* "sufficient to read at least one event." - inotify(7) */
4635
const size_t ievent_max_size = (sizeof(struct inotify_event)
4636
+ NAME_MAX + 1);
4637
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4638
struct {
4639
struct inotify_event event;
4640
char name_buffer[NAME_MAX + 1];
4641
} ievent_buffer;
4642
struct inotify_event *const ievent = &ievent_buffer.event;
4643
4644
const char dummy_file_name[] = "ignored.dummy_file_name";
4645
ievent->mask = IN_MOVED_FROM;
4646
ievent->len = sizeof(dummy_file_name);
4647
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4648
const size_t ievent_size = (sizeof(struct inotify_event)
4649
+ sizeof(dummy_file_name));
4650
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4651
==, ievent_size);
4652
g_assert_cmpint(close(pipefds[1]), ==, 0);
4653
4654
bool quit_now = false;
4655
buffer password = {};
4656
bool mandos_client_exited = false;
4657
bool password_is_read = false;
4658
__attribute__((cleanup(cleanup_queue)))
4659
task_queue *queue = create_queue();
4660
g_assert_nonnull(queue);
4661
4662
task_context task = {
4663
.func=read_inotify_event,
4664
.epoll_fd=epoll_fd,
4665
.fd=pipefds[0],
4666
.quit_now=&quit_now,
4667
.password=&password,
4668
.filename=strdup("/nonexistent"),
4669
.cancelled_filenames=&cancelled_filenames,
4670
.current_time=¤t_time,
4671
.mandos_client_exited=&mandos_client_exited,
4672
.password_is_read=&password_is_read,
4673
};
4674
task.func(task, queue);
4675
g_assert_false(quit_now);
4676
g_assert_true(queue->next_run == 0);
4677
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4678
4679
g_assert_nonnull(find_matching_task(queue, (task_context){
4680
.func=read_inotify_event,
4681
.epoll_fd=epoll_fd,
4682
.fd=pipefds[0],
4683
.quit_now=&quit_now,
4684
.password=&password,
4685
.filename=task.filename,
4686
.cancelled_filenames=&cancelled_filenames,
4687
.current_time=¤t_time,
4688
.mandos_client_exited=&mandos_client_exited,
4689
.password_is_read=&password_is_read,
4690
}));
4691
4692
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4693
EPOLLIN | EPOLLRDHUP));
4694
4695
__attribute__((cleanup(cleanup_string)))
4696
char *filename = NULL;
4697
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4698
dummy_file_name), >, 0);
4699
g_assert_nonnull(filename);
4700
g_assert_false(string_set_contains(cancelled_filenames, filename));
4701
}
4702
4703
static
4704
void test_read_inotify_event_IN_DELETE_badname(__attribute__((unused))
4705
test_fixture *fixture,
4706
__attribute__((unused))
4707
gconstpointer
4708
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
const mono_microsecs current_time = 0;
4715
4716
int pipefds[2];
4717
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4718
4719
/* "sufficient to read at least one event." - inotify(7) */
4720
const size_t ievent_max_size = (sizeof(struct inotify_event)
4721
+ NAME_MAX + 1);
4722
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4723
struct {
4724
struct inotify_event event;
4725
char name_buffer[NAME_MAX + 1];
4726
} ievent_buffer;
4727
struct inotify_event *const ievent = &ievent_buffer.event;
4728
4729
const char dummy_file_name[] = "ignored.dummy_file_name";
4730
ievent->mask = IN_DELETE;
4731
ievent->len = sizeof(dummy_file_name);
4732
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4733
const size_t ievent_size = (sizeof(struct inotify_event)
4734
+ sizeof(dummy_file_name));
4735
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4736
==, ievent_size);
4737
g_assert_cmpint(close(pipefds[1]), ==, 0);
4738
4739
bool quit_now = false;
4740
buffer password = {};
4741
bool mandos_client_exited = false;
4742
bool password_is_read = false;
4743
__attribute__((cleanup(cleanup_queue)))
4744
task_queue *queue = create_queue();
4745
g_assert_nonnull(queue);
4746
4747
task_context task = {
4748
.func=read_inotify_event,
4749
.epoll_fd=epoll_fd,
4750
.fd=pipefds[0],
4751
.quit_now=&quit_now,
4752
.password=&password,
4753
.filename=strdup("/nonexistent"),
4754
.cancelled_filenames=&cancelled_filenames,
4755
.current_time=¤t_time,
4756
.mandos_client_exited=&mandos_client_exited,
4757
.password_is_read=&password_is_read,
4758
};
4759
task.func(task, queue);
4760
g_assert_false(quit_now);
4761
g_assert_true(queue->next_run == 0);
4762
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4763
4764
g_assert_nonnull(find_matching_task(queue, (task_context){
4765
.func=read_inotify_event,
4766
.epoll_fd=epoll_fd,
4767
.fd=pipefds[0],
4768
.quit_now=&quit_now,
4769
.password=&password,
4770
.filename=task.filename,
4771
.cancelled_filenames=&cancelled_filenames,
4772
.current_time=¤t_time,
4773
.mandos_client_exited=&mandos_client_exited,
4774
.password_is_read=&password_is_read,
4775
}));
4776
4777
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4778
EPOLLIN | EPOLLRDHUP));
4779
4780
__attribute__((cleanup(cleanup_string)))
4781
char *filename = NULL;
4782
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4783
dummy_file_name), >, 0);
4784
g_assert_nonnull(filename);
4785
g_assert_false(string_set_contains(cancelled_filenames, filename));
4786
}
4787
4788
static
4789
void test_open_and_parse_question_ENOENT(__attribute__((unused))
4790
test_fixture *fixture,
4791
__attribute__((unused))
4792
gconstpointer user_data){
4793
__attribute__((cleanup(cleanup_close)))
4794
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4795
g_assert_cmpint(epoll_fd, >=, 0);
4796
__attribute__((cleanup(string_set_clear)))
4797
string_set cancelled_filenames = {};
4798
bool mandos_client_exited = false;
4799
bool password_is_read = false;
4800
__attribute__((cleanup(cleanup_queue)))
4801
task_queue *queue = create_queue();
4802
g_assert_nonnull(queue);
4803
4804
char *const filename = strdup("/nonexistent");
4805
g_assert_nonnull(filename);
4806
task_context task = {
4807
.func=open_and_parse_question,
4808
.question_filename=filename,
4809
.epoll_fd=epoll_fd,
4810
.password=(buffer[]){{}},
4811
.filename=filename,
4812
.cancelled_filenames=&cancelled_filenames,
4813
.current_time=(mono_microsecs[]){0},
4814
.mandos_client_exited=&mandos_client_exited,
4815
.password_is_read=&password_is_read,
4816
};
4817
task.func(task, queue);
4818
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
4819
}
4820
4821
static void test_open_and_parse_question_EIO(__attribute__((unused))
4822
test_fixture *fixture,
4823
__attribute__((unused))
4824
gconstpointer user_data){
4825
__attribute__((cleanup(cleanup_close)))
4826
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4827
g_assert_cmpint(epoll_fd, >=, 0);
4828
__attribute__((cleanup(string_set_clear)))
4829
string_set cancelled_filenames = {};
4830
buffer password = {};
4831
bool mandos_client_exited = false;
4832
bool password_is_read = false;
4833
__attribute__((cleanup(cleanup_queue)))
4834
task_queue *queue = create_queue();
4835
g_assert_nonnull(queue);
4836
const mono_microsecs current_time = 0;
4837
4838
char *filename = strdup("/proc/self/mem");
4839
task_context task = {
4840
.func=open_and_parse_question,
4841
.question_filename=filename,
4842
.epoll_fd=epoll_fd,
4843
.password=&password,
4844
.filename=filename,
4845
.cancelled_filenames=&cancelled_filenames,
4846
.current_time=¤t_time,
4847
.mandos_client_exited=&mandos_client_exited,
4848
.password_is_read=&password_is_read,
4849
};
4850
run_task_with_stderr_to_dev_null(task, queue);
4851
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
4852
}
4853
4854
static void
4855
test_open_and_parse_question_parse_error(__attribute__((unused))
4856
test_fixture *fixture,
4857
__attribute__((unused))
4858
gconstpointer user_data){
4859
__attribute__((cleanup(cleanup_close)))
4860
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4861
g_assert_cmpint(epoll_fd, >=, 0);
4862
__attribute__((cleanup(string_set_clear)))
4863
string_set cancelled_filenames = {};
4864
__attribute__((cleanup(cleanup_queue)))
4865
task_queue *queue = create_queue();
4866
g_assert_nonnull(queue);
4867
4868
__attribute__((cleanup(cleanup_string)))
4869
char *tempfilename = strdup("/tmp/mandosXXXXXX");
4870
g_assert_nonnull(tempfilename);
4871
int tempfile = mkostemp(tempfilename, O_CLOEXEC);
4872
g_assert_cmpint(tempfile, >, 0);
4873
const char bad_data[] = "this is bad syntax\n";
4874
g_assert_cmpint(write(tempfile, bad_data, sizeof(bad_data)),
4875
==, sizeof(bad_data));
4876
g_assert_cmpint(close(tempfile), ==, 0);
4877
4878
char *const filename = strdup(tempfilename);
4879
g_assert_nonnull(filename);
4880
task_context task = {
4881
.func=open_and_parse_question,
4882
.question_filename=filename,
4883
.epoll_fd=epoll_fd,
4884
.password=(buffer[]){{}},
4885
.filename=filename,
4886
.cancelled_filenames=&cancelled_filenames,
4887
.current_time=(mono_microsecs[]){0},
4888
.mandos_client_exited=(bool[]){false},
4889
.password_is_read=(bool[]){false},
4890
};
4891
run_task_with_stderr_to_dev_null(task, queue);
4892
4893
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
4894
4895
g_assert_cmpint(unlink(tempfilename), ==, 0);
4896
}
4897
4898
static
4899
void test_open_and_parse_question_nosocket(__attribute__((unused))
4900
test_fixture *fixture,
4901
__attribute__((unused))
4902
gconstpointer user_data){
4903
__attribute__((cleanup(cleanup_close)))
4904
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4905
g_assert_cmpint(epoll_fd, >=, 0);
4906
__attribute__((cleanup(string_set_clear)))
4907
string_set cancelled_filenames = {};
4908
__attribute__((cleanup(cleanup_queue)))
4909
task_queue *queue = create_queue();
4910
g_assert_nonnull(queue);
4911
4912
__attribute__((cleanup(cleanup_string)))
4913
char *tempfilename = strdup("/tmp/mandosXXXXXX");
4914
g_assert_nonnull(tempfilename);
4915
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
4916
g_assert_cmpint(questionfile, >, 0);
4917
FILE *qf = fdopen(questionfile, "w");
4918
g_assert_cmpint(fprintf(qf, "[Ask]\nPID=1\n"), >, 0);
4919
g_assert_cmpint(fclose(qf), ==, 0);
4920
4921
char *const filename = strdup(tempfilename);
4922
g_assert_nonnull(filename);
4923
task_context task = {
4924
.func=open_and_parse_question,
4925
.question_filename=filename,
4926
.epoll_fd=epoll_fd,
4927
.password=(buffer[]){{}},
4928
.filename=filename,
4929
.cancelled_filenames=&cancelled_filenames,
4930
.current_time=(mono_microsecs[]){0},
4931
.mandos_client_exited=(bool[]){false},
4932
.password_is_read=(bool[]){false},
4933
};
4934
run_task_with_stderr_to_dev_null(task, queue);
4935
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
4936
4937
g_assert_cmpint(unlink(tempfilename), ==, 0);
4938
}
4939
4940
static
4941
void test_open_and_parse_question_badsocket(__attribute__((unused))
4942
test_fixture *fixture,
4943
__attribute__((unused))
4944
gconstpointer user_data){
4945
__attribute__((cleanup(cleanup_close)))
4946
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4947
g_assert_cmpint(epoll_fd, >=, 0);
4948
__attribute__((cleanup(string_set_clear)))
4949
string_set cancelled_filenames = {};
4950
__attribute__((cleanup(cleanup_queue)))
4951
task_queue *queue = create_queue();
4952
g_assert_nonnull(queue);
4953
4954
__attribute__((cleanup(cleanup_string)))
4955
char *tempfilename = strdup("/tmp/mandosXXXXXX");
4956
g_assert_nonnull(tempfilename);
4957
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
4958
g_assert_cmpint(questionfile, >, 0);
4959
FILE *qf = fdopen(questionfile, "w");
4960
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=\nPID=1\n"), >, 0);
4961
g_assert_cmpint(fclose(qf), ==, 0);
4962
4963
char *const filename = strdup(tempfilename);
4964
g_assert_nonnull(filename);
4965
task_context task = {
4966
.func=open_and_parse_question,
4967
.question_filename=filename,
4968
.epoll_fd=epoll_fd,
4969
.password=(buffer[]){{}},
4970
.filename=filename,
4971
.cancelled_filenames=&cancelled_filenames,
4972
.current_time=(mono_microsecs[]){0},
4973
.mandos_client_exited=(bool[]){false},
4974
.password_is_read=(bool[]){false},
4975
};
4976
run_task_with_stderr_to_dev_null(task, queue);
4977
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
4978
4979
g_assert_cmpint(unlink(tempfilename), ==, 0);
4980
}
4981
4982
static
4983
void test_open_and_parse_question_nopid(__attribute__((unused))
4984
test_fixture *fixture,
4985
__attribute__((unused))
4986
gconstpointer user_data){
4987
__attribute__((cleanup(cleanup_close)))
4988
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4989
g_assert_cmpint(epoll_fd, >=, 0);
4990
__attribute__((cleanup(string_set_clear)))
4991
string_set cancelled_filenames = {};
4992
__attribute__((cleanup(cleanup_queue)))
4993
task_queue *queue = create_queue();
4994
g_assert_nonnull(queue);
4995
4996
__attribute__((cleanup(cleanup_string)))
4997
char *tempfilename = strdup("/tmp/mandosXXXXXX");
4998
g_assert_nonnull(tempfilename);
4999
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5000
g_assert_cmpint(questionfile, >, 0);
5001
FILE *qf = fdopen(questionfile, "w");
5002
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\n"), >, 0);
5003
g_assert_cmpint(fclose(qf), ==, 0);
5004
5005
char *const filename = strdup(tempfilename);
5006
g_assert_nonnull(filename);
5007
task_context task = {
5008
.func=open_and_parse_question,
5009
.question_filename=filename,
5010
.epoll_fd=epoll_fd,
5011
.password=(buffer[]){{}},
5012
.filename=filename,
5013
.cancelled_filenames=&cancelled_filenames,
5014
.current_time=(mono_microsecs[]){0},
5015
.mandos_client_exited=(bool[]){false},
5016
.password_is_read=(bool[]){false},
5017
};
5018
run_task_with_stderr_to_dev_null(task, queue);
5019
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5020
5021
g_assert_cmpint(unlink(tempfilename), ==, 0);
5022
}
5023
5024
static
5025
void test_open_and_parse_question_badpid(__attribute__((unused))
5026
test_fixture *fixture,
5027
__attribute__((unused))
5028
gconstpointer user_data){
5029
__attribute__((cleanup(cleanup_close)))
5030
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5031
g_assert_cmpint(epoll_fd, >=, 0);
5032
__attribute__((cleanup(string_set_clear)))
5033
string_set cancelled_filenames = {};
5034
__attribute__((cleanup(cleanup_queue)))
5035
task_queue *queue = create_queue();
5036
g_assert_nonnull(queue);
5037
5038
__attribute__((cleanup(cleanup_string)))
5039
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5040
g_assert_nonnull(tempfilename);
5041
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5042
g_assert_cmpint(questionfile, >, 0);
5043
FILE *qf = fdopen(questionfile, "w");
5044
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=\n"),
5045
>, 0);
5046
g_assert_cmpint(fclose(qf), ==, 0);
5047
5048
char *const filename = strdup(tempfilename);
5049
g_assert_nonnull(filename);
5050
task_context task = {
5051
.func=open_and_parse_question,
5052
.question_filename=filename,
5053
.epoll_fd=epoll_fd,
5054
.password=(buffer[]){{}},
5055
.filename=filename,
5056
.cancelled_filenames=&cancelled_filenames,
5057
.current_time=(mono_microsecs[]){0},
5058
.mandos_client_exited=(bool[]){false},
5059
.password_is_read=(bool[]){false},
5060
};
5061
run_task_with_stderr_to_dev_null(task, queue);
5062
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5063
5064
g_assert_cmpint(unlink(tempfilename), ==, 0);
5065
}
5066
5067
static void
5068
test_open_and_parse_question_noexist_pid(__attribute__((unused))
5069
test_fixture *fixture,
5070
__attribute__((unused))
5071
gconstpointer user_data){
5072
__attribute__((cleanup(cleanup_close)))
5073
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5074
g_assert_cmpint(epoll_fd, >=, 0);
5075
__attribute__((cleanup(string_set_clear)))
5076
string_set cancelled_filenames = {};
5077
buffer password = {};
5078
bool mandos_client_exited = false;
5079
bool password_is_read = false;
5080
__attribute__((cleanup(cleanup_queue)))
5081
task_queue *queue = create_queue();
5082
g_assert_nonnull(queue);
5083
const mono_microsecs current_time = 0;
5084
5085
/* Find value of sysctl kernel.pid_max */
5086
uintmax_t pid_max = 0;
5087
FILE *sysctl_pid_max = fopen("/proc/sys/kernel/pid_max", "r");
5088
g_assert_nonnull(sysctl_pid_max);
5089
g_assert_cmpint(fscanf(sysctl_pid_max, "%" PRIuMAX, &pid_max),
5090
==, 1);
5091
g_assert_cmpint(fclose(sysctl_pid_max), ==, 0);
5092
5093
pid_t nonexisting_pid = ((pid_t)pid_max)+1;
5094
g_assert_true(nonexisting_pid > 0); /* Overflow check */
5095
5096
__attribute__((cleanup(cleanup_string)))
5097
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5098
g_assert_nonnull(tempfilename);
5099
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5100
g_assert_cmpint(questionfile, >, 0);
5101
FILE *qf = fdopen(questionfile, "w");
5102
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"
5103
PRIuMAX"\n", (uintmax_t)nonexisting_pid),
5104
>, 0);
5105
g_assert_cmpint(fclose(qf), ==, 0);
5106
5107
char *const question_filename = strdup(tempfilename);
5108
g_assert_nonnull(question_filename);
5109
task_context task = {
5110
.func=open_and_parse_question,
5111
.question_filename=question_filename,
5112
.epoll_fd=epoll_fd,
5113
.password=&password,
5114
.filename=question_filename,
5115
.cancelled_filenames=&cancelled_filenames,
5116
.current_time=¤t_time,
5117
.mandos_client_exited=&mandos_client_exited,
5118
.password_is_read=&password_is_read,
5119
};
5120
run_task_with_stderr_to_dev_null(task, queue);
5121
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5122
5123
g_assert_cmpint(unlink(tempfilename), ==, 0);
5124
}
5125
5126
static void
5127
test_open_and_parse_question_no_notafter(__attribute__((unused))
5128
test_fixture *fixture,
5129
__attribute__((unused))
5130
gconstpointer user_data){
5131
__attribute__((cleanup(cleanup_close)))
5132
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5133
g_assert_cmpint(epoll_fd, >=, 0);
5134
__attribute__((cleanup(string_set_clear)))
5135
string_set cancelled_filenames = {};
5136
buffer password = {};
5137
bool mandos_client_exited = false;
5138
bool password_is_read = false;
5139
__attribute__((cleanup(cleanup_queue)))
5140
task_queue *queue = create_queue();
5141
g_assert_nonnull(queue);
5142
const mono_microsecs current_time = 0;
5143
5144
__attribute__((cleanup(cleanup_string)))
5145
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5146
g_assert_nonnull(tempfilename);
5147
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5148
g_assert_cmpint(questionfile, >, 0);
5149
FILE *qf = fdopen(questionfile, "w");
5150
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"
5151
PRIuMAX "\n", (uintmax_t)getpid()), >, 0);
5152
g_assert_cmpint(fclose(qf), ==, 0);
5153
5154
char *const filename = strdup(tempfilename);
5155
g_assert_nonnull(filename);
5156
task_context task = {
5157
.func=open_and_parse_question,
5158
.question_filename=filename,
5159
.epoll_fd=epoll_fd,
5160
.password=&password,
5161
.filename=filename,
5162
.cancelled_filenames=&cancelled_filenames,
5163
.current_time=¤t_time,
5164
.mandos_client_exited=&mandos_client_exited,
5165
.password_is_read=&password_is_read,
5166
};
5167
task.func(task, queue);
5168
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5169
5170
__attribute__((cleanup(cleanup_string)))
5171
char *socket_filename = strdup("/nonexistent");
5172
g_assert_nonnull(socket_filename);
5173
g_assert_nonnull(find_matching_task(queue, (task_context){
5174
.func=connect_question_socket,
5175
.question_filename=tempfilename,
5176
.filename=socket_filename,
5177
.epoll_fd=epoll_fd,
5178
.password=&password,
5179
.current_time=¤t_time,
5180
.mandos_client_exited=&mandos_client_exited,
5181
.password_is_read=&password_is_read,
5182
}));
5183
5184
g_assert_true(queue->next_run != 0);
5185
5186
g_assert_cmpint(unlink(tempfilename), ==, 0);
5187
}
5188
5189
static void
5190
test_open_and_parse_question_bad_notafter(__attribute__((unused))
5191
test_fixture *fixture,
5192
__attribute__((unused))
5193
gconstpointer user_data){
5194
__attribute__((cleanup(cleanup_close)))
5195
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5196
g_assert_cmpint(epoll_fd, >=, 0);
5197
__attribute__((cleanup(string_set_clear)))
5198
string_set cancelled_filenames = {};
5199
buffer password = {};
5200
bool mandos_client_exited = false;
5201
bool password_is_read = false;
5202
__attribute__((cleanup(cleanup_queue)))
5203
task_queue *queue = create_queue();
5204
g_assert_nonnull(queue);
5205
const mono_microsecs current_time = 0;
5206
5207
__attribute__((cleanup(cleanup_string)))
5208
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5209
g_assert_nonnull(tempfilename);
5210
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5211
g_assert_cmpint(questionfile, >, 0);
5212
FILE *qf = fdopen(questionfile, "w");
5213
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"
5214
PRIuMAX "\nNotAfter=\n",
5215
(uintmax_t)getpid()), >, 0);
5216
g_assert_cmpint(fclose(qf), ==, 0);
5217
5218
char *const filename = strdup(tempfilename);
5219
g_assert_nonnull(filename);
5220
task_context task = {
5221
.func=open_and_parse_question,
5222
.question_filename=filename,
5223
.epoll_fd=epoll_fd,
5224
.password=&password,
5225
.filename=filename,
5226
.cancelled_filenames=&cancelled_filenames,
5227
.current_time=¤t_time,
5228
.mandos_client_exited=&mandos_client_exited,
5229
.password_is_read=&password_is_read,
5230
};
5231
run_task_with_stderr_to_dev_null(task, queue);
5232
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5233
5234
__attribute__((cleanup(cleanup_string)))
5235
char *socket_filename = strdup("/nonexistent");
5236
g_assert_nonnull(find_matching_task(queue, (task_context){
5237
.func=connect_question_socket,
5238
.question_filename=tempfilename,
5239
.filename=socket_filename,
5240
.epoll_fd=epoll_fd,
5241
.password=&password,
5242
.current_time=¤t_time,
5243
.mandos_client_exited=&mandos_client_exited,
5244
.password_is_read=&password_is_read,
5245
}));
5246
g_assert_true(queue->next_run != 0);
5247
5248
g_assert_cmpint(unlink(tempfilename), ==, 0);
5249
}
5250
5251
static
5252
void assert_open_and_parse_question_with_notafter(const mono_microsecs
5253
current_time,
5254
const mono_microsecs
5255
notafter,
5256
const mono_microsecs
5257
next_queue_run){
5258
__attribute__((cleanup(cleanup_close)))
5259
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5260
g_assert_cmpint(epoll_fd, >=, 0);
5261
__attribute__((cleanup(string_set_clear)))
5262
string_set cancelled_filenames = {};
5263
buffer password = {};
5264
bool mandos_client_exited = false;
5265
bool password_is_read = false;
5266
__attribute__((cleanup(cleanup_queue)))
5267
task_queue *queue = create_queue();
5268
g_assert_nonnull(queue);
5269
queue->next_run = next_queue_run;
5270
5271
__attribute__((cleanup(cleanup_string)))
5272
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5273
g_assert_nonnull(tempfilename);
5274
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5275
g_assert_cmpint(questionfile, >, 0);
5276
FILE *qf = fdopen(questionfile, "w");
5277
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"
5278
PRIuMAX "\nNotAfter=%" PRIuMAX "\n",
5279
(uintmax_t)getpid(), notafter), >, 0);
5280
g_assert_cmpint(fclose(qf), ==, 0);
5281
5282
char *const filename = strdup(tempfilename);
5283
g_assert_nonnull(filename);
5284
task_context task = {
5285
.func=open_and_parse_question,
5286
.question_filename=filename,
5287
.epoll_fd=epoll_fd,
5288
.password=&password,
5289
.filename=filename,
5290
.cancelled_filenames=&cancelled_filenames,
5291
.current_time=¤t_time,
5292
.mandos_client_exited=&mandos_client_exited,
5293
.password_is_read=&password_is_read,
5294
};
5295
task.func(task, queue);
5296
5297
if(queue->length >= 1){
5298
__attribute__((cleanup(cleanup_string)))
5299
char *socket_filename = strdup("/nonexistent");
5300
g_assert_nonnull(find_matching_task(queue, (task_context){
5301
.func=connect_question_socket,
5302
.filename=socket_filename,
5303
.epoll_fd=epoll_fd,
5304
.password=&password,
5305
.current_time=¤t_time,
5306
.cancelled_filenames=&cancelled_filenames,
5307
.mandos_client_exited=&mandos_client_exited,
5308
.password_is_read=&password_is_read,
5309
}));
5310
g_assert_true(queue->next_run != 0);
5311
}
5312
5313
if(notafter == 0){
5314
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5315
} else if(current_time >= notafter) {
5316
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5317
} else {
5318
g_assert_nonnull(find_matching_task(queue, (task_context){
5319
.func=cancel_old_question,
5320
.question_filename=tempfilename,
5321
.filename=tempfilename,
5322
.notafter=notafter,
5323
.cancelled_filenames=&cancelled_filenames,
5324
.current_time=¤t_time,
5325
}));
5326
}
5327
g_assert_true(queue->next_run == 1);
5328
5329
g_assert_cmpint(unlink(tempfilename), ==, 0);
5330
}
5331
5332
static void
5333
test_open_and_parse_question_notafter_0(__attribute__((unused))
5334
test_fixture *fixture,
5335
__attribute__((unused))
5336
gconstpointer user_data){
5337
/* current_time, notafter, next_queue_run */
5338
assert_open_and_parse_question_with_notafter(0, 0, 0);
5339
}
5340
5341
static void
5342
test_open_and_parse_question_notafter_1(__attribute__((unused))
5343
test_fixture *fixture,
5344
__attribute__((unused))
5345
gconstpointer user_data){
5346
/* current_time, notafter, next_queue_run */
5347
assert_open_and_parse_question_with_notafter(0, 1, 0);
5348
}
5349
5350
static void
5351
test_open_and_parse_question_notafter_1_1(__attribute__((unused))
5352
test_fixture *fixture,
5353
__attribute__((unused))
5354
gconstpointer user_data){
5355
/* current_time, notafter, next_queue_run */
5356
assert_open_and_parse_question_with_notafter(0, 1, 1);
5357
}
5358
5359
static void
5360
test_open_and_parse_question_notafter_1_2(__attribute__((unused))
5361
test_fixture *fixture,
5362
__attribute__((unused))
5363
gconstpointer user_data){
5364
/* current_time, notafter, next_queue_run */
5365
assert_open_and_parse_question_with_notafter(0, 1, 2);
5366
}
5367
5368
static void
5369
test_open_and_parse_question_equal_notafter(__attribute__((unused))
5370
test_fixture *fixture,
5371
__attribute__((unused))
5372
gconstpointer user_data){
5373
/* current_time, notafter, next_queue_run */
5374
assert_open_and_parse_question_with_notafter(1, 1, 0);
5375
}
5376
5377
static void
5378
test_open_and_parse_question_late_notafter(__attribute__((unused))
5379
test_fixture *fixture,
5380
__attribute__((unused))
5381
gconstpointer user_data){
5382
/* current_time, notafter, next_queue_run */
5383
assert_open_and_parse_question_with_notafter(2, 1, 0);
5384
}
5385
5386
static void assert_cancel_old_question_param(const mono_microsecs
5387
next_queue_run,
5388
const mono_microsecs
5389
notafter,
5390
const mono_microsecs
5391
current_time,
5392
const mono_microsecs
5393
next_set_to){
5394
__attribute__((cleanup(string_set_clear)))
5395
string_set cancelled_filenames = {};
5396
__attribute__((cleanup(cleanup_queue)))
5397
task_queue *queue = create_queue();
5398
g_assert_nonnull(queue);
5399
queue->next_run = next_queue_run;
5400
5401
char *const question_filename = strdup("/nonexistent");
5402
g_assert_nonnull(question_filename);
5403
task_context task = {
5404
.func=cancel_old_question,
5405
.question_filename=question_filename,
5406
.filename=question_filename,
5407
.notafter=notafter,
5408
.cancelled_filenames=&cancelled_filenames,
5409
.current_time=¤t_time,
5410
};
5411
task.func(task, queue);
5412
5413
if(current_time >= notafter){
5414
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5415
g_assert_true(string_set_contains(cancelled_filenames,
5416
"/nonexistent"));
5417
} else {
5418
g_assert_nonnull(find_matching_task(queue, (task_context){
5419
.func=cancel_old_question,
5420
.question_filename=question_filename,
5421
.filename=question_filename,
5422
.notafter=notafter,
5423
.cancelled_filenames=&cancelled_filenames,
5424
.current_time=¤t_time,
5425
}));
5426
5427
g_assert_false(string_set_contains(cancelled_filenames,
5428
question_filename));
5429
}
5430
g_assert_cmpuint((unsigned int)queue->next_run, ==,
5431
(unsigned int)next_set_to);
5432
}
5433
5434
static void test_cancel_old_question_0_1_2(__attribute__((unused))
5435
test_fixture *fixture,
5436
__attribute__((unused))
5437
gconstpointer user_data){
5438
/* next_queue_run unset,
5439
cancellation should happen because time has come,
5440
next_queue_run should be unchanged */
5441
/* next_queue_run, notafter, current_time, next_set_to */
5442
assert_cancel_old_question_param(0, 1, 2, 0);
5443
}
5444
5445
static void test_cancel_old_question_0_2_1(__attribute__((unused))
5446
test_fixture *fixture,
5447
__attribute__((unused))
5448
gconstpointer user_data){
5449
/* If next_queue_run is 0, meaning unset, and notafter is 2,
5450
and current_time is not yet notafter or greater,
5451
update value of next_queue_run to value of notafter */
5452
/* next_queue_run, notafter, current_time, next_set_to */
5453
assert_cancel_old_question_param(0, 2, 1, 2);
5454
}
5455
5456
static void test_cancel_old_question_1_2_3(__attribute__((unused))
5457
test_fixture *fixture,
5458
__attribute__((unused))
5459
gconstpointer user_data){
5460
/* next_queue_run 1,
5461
cancellation should happen because time has come,
5462
next_queue_run should be unchanged */
5463
/* next_queue_run, notafter, current_time, next_set_to */
5464
assert_cancel_old_question_param(1, 2, 3, 1);
5465
}
5466
5467
static void test_cancel_old_question_1_3_2(__attribute__((unused))
5468
test_fixture *fixture,
5469
__attribute__((unused))
5470
gconstpointer user_data){
5471
/* If next_queue_run is set,
5472
and current_time is not yet notafter or greater,
5473
and notafter is larger than next_queue_run
5474
next_queue_run should be unchanged */
5475
/* next_queue_run, notafter, current_time, next_set_to */
5476
assert_cancel_old_question_param(1, 3, 2, 1);
5477
}
5478
5479
static void test_cancel_old_question_2_1_3(__attribute__((unused))
5480
test_fixture *fixture,
5481
__attribute__((unused))
5482
gconstpointer user_data){
5483
/* next_queue_run 2,
5484
cancellation should happen because time has come,
5485
next_queue_run should be unchanged */
5486
/* next_queue_run, notafter, current_time, next_set_to */
5487
assert_cancel_old_question_param(2, 1, 3, 2);
5488
}
5489
5490
static void test_cancel_old_question_2_3_1(__attribute__((unused))
5491
test_fixture *fixture,
5492
__attribute__((unused))
5493
gconstpointer user_data){
5494
/* If next_queue_run is set,
5495
and current_time is not yet notafter or greater,
5496
and notafter is larger than next_queue_run
5497
next_queue_run should be unchanged */
5498
/* next_queue_run, notafter, current_time, next_set_to */
5499
assert_cancel_old_question_param(2, 3, 1, 2);
5500
}
5501
5502
static void test_cancel_old_question_3_1_2(__attribute__((unused))
5503
test_fixture *fixture,
5504
__attribute__((unused))
5505
gconstpointer user_data){
5506
/* next_queue_run 3,
5507
cancellation should happen because time has come,
5508
next_queue_run should be unchanged */
5509
/* next_queue_run, notafter, current_time, next_set_to */
5510
assert_cancel_old_question_param(3, 1, 2, 3);
5511
}
5512
5513
static void test_cancel_old_question_3_2_1(__attribute__((unused))
5514
test_fixture *fixture,
5515
__attribute__((unused))
5516
gconstpointer user_data){
5517
/* If next_queue_run is set,
5518
and current_time is not yet notafter or greater,
5519
and notafter is smaller than next_queue_run
5520
update value of next_queue_run to value of notafter */
5521
/* next_queue_run, notafter, current_time, next_set_to */
5522
assert_cancel_old_question_param(3, 2, 1, 2);
5523
}
5524
5525
static void
5526
test_connect_question_socket_name_too_long(__attribute__((unused))
5527
test_fixture *fixture,
5528
__attribute__((unused))
5529
gconstpointer user_data){
5530
__attribute__((cleanup(cleanup_close)))
5531
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5532
g_assert_cmpint(epoll_fd, >=, 0);
5533
const char question_filename[] = "/nonexistent/question";
5534
__attribute__((cleanup(string_set_clear)))
5535
string_set cancelled_filenames = {};
5536
__attribute__((cleanup(cleanup_queue)))
5537
task_queue *queue = create_queue();
5538
g_assert_nonnull(queue);
5539
__attribute__((cleanup(cleanup_string)))
5540
char *tempdir = make_temporary_directory();
5541
g_assert_nonnull(tempdir);
5542
struct sockaddr_un unix_socket = { .sun_family=AF_LOCAL };
5543
char socket_name[sizeof(unix_socket.sun_path)];
5544
memset(socket_name, 'x', sizeof(socket_name));
5545
socket_name[sizeof(socket_name)-1] = '\0';
5546
char *filename = NULL;
5547
g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),
5548
>, 0);
5549
g_assert_nonnull(filename);
5550
5551
task_context task = {
5552
.func=connect_question_socket,
5553
.question_filename=strdup(question_filename),
5554
.epoll_fd=epoll_fd,
5555
.password=(buffer[]){{}},
5556
.filename=filename,
5557
.cancelled_filenames=&cancelled_filenames,
5558
.mandos_client_exited=(bool[]){false},
5559
.password_is_read=(bool[]){false},
5560
.current_time=(mono_microsecs[]){0},
5561
};
5562
g_assert_nonnull(task.question_filename);
5563
run_task_with_stderr_to_dev_null(task, queue);
5564
5565
g_assert_true(string_set_contains(cancelled_filenames,
5566
question_filename));
5567
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5568
g_assert_true(queue->next_run == 0);
5569
5570
g_assert_cmpint(rmdir(tempdir), ==, 0);
5571
}
5572
5573
static
5574
void test_connect_question_socket_connect_fail(__attribute__((unused))
5575
test_fixture *fixture,
5576
__attribute__((unused))
5577
gconstpointer
5578
user_data){
5579
__attribute__((cleanup(cleanup_close)))
5580
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5581
g_assert_cmpint(epoll_fd, >=, 0);
5582
const char question_filename[] = "/nonexistent/question";
5583
__attribute__((cleanup(string_set_clear)))
5584
string_set cancelled_filenames = {};
5585
const mono_microsecs current_time = 3;
5586
__attribute__((cleanup(cleanup_queue)))
5587
task_queue *queue = create_queue();
5588
g_assert_nonnull(queue);
5589
__attribute__((cleanup(cleanup_string)))
5590
char *tempdir = make_temporary_directory();
5591
g_assert_nonnull(tempdir);
5592
char socket_name[] = "nonexistent";
5593
char *filename = NULL;
5594
g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),
5595
>, 0);
5596
g_assert_nonnull(filename);
5597
5598
task_context task = {
5599
.func=connect_question_socket,
5600
.question_filename=strdup(question_filename),
5601
.epoll_fd=epoll_fd,
5602
.password=(buffer[]){{}},
5603
.filename=filename,
5604
.cancelled_filenames=&cancelled_filenames,
5605
.mandos_client_exited=(bool[]){false},
5606
.password_is_read=(bool[]){false},
5607
.current_time=¤t_time,
5608
};
5609
g_assert_nonnull(task.question_filename);
5610
run_task_with_stderr_to_dev_null(task, queue);
5611
5612
g_assert_nonnull(find_matching_task(queue, task));
5613
5614
g_assert_false(string_set_contains(cancelled_filenames,
5615
question_filename));
5616
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5617
g_assert_true(queue->next_run == 1000000 + current_time);
5618
5619
g_assert_cmpint(rmdir(tempdir), ==, 0);
5620
}
5621
5622
static
5623
void test_connect_question_socket_bad_epoll(__attribute__((unused))
5624
test_fixture *fixture,
5625
__attribute__((unused))
5626
gconstpointer user_data){
5627
__attribute__((cleanup(cleanup_close)))
5628
const int epoll_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);
5629
__attribute__((cleanup(cleanup_string)))
5630
char *const question_filename = strdup("/nonexistent/question");
5631
g_assert_nonnull(question_filename);
5632
__attribute__((cleanup(string_set_clear)))
5633
string_set cancelled_filenames = {};
5634
const mono_microsecs current_time = 5;
5635
__attribute__((cleanup(cleanup_queue)))
5636
task_queue *queue = create_queue();
5637
g_assert_nonnull(queue);
5638
__attribute__((cleanup(cleanup_string)))
5639
char *tempdir = make_temporary_directory();
5640
g_assert_nonnull(tempdir);
5641
__attribute__((cleanup(cleanup_close)))
5642
const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM
5643
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);
5644
g_assert_cmpint(sock_fd, >=, 0);
5645
struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };
5646
const char socket_name[] = "socket_name";
5647
__attribute__((cleanup(cleanup_string)))
5648
char *filename = NULL;
5649
g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),
5650
>, 0);
5651
g_assert_nonnull(filename);
5652
g_assert_cmpint((int)strlen(filename), <,
5653
(int)sizeof(sock_name.sun_path));
5654
strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));
5655
sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';
5656
g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,
5657
(socklen_t)SUN_LEN(&sock_name)), >=, 0);
5658
task_context task = {
5659
.func=connect_question_socket,
5660
.question_filename=strdup(question_filename),
5661
.epoll_fd=epoll_fd,
5662
.password=(buffer[]){{}},
5663
.filename=strdup(filename),
5664
.cancelled_filenames=&cancelled_filenames,
5665
.mandos_client_exited=(bool[]){false},
5666
.password_is_read=(bool[]){false},
5667
.current_time=¤t_time,
5668
};
5669
g_assert_nonnull(task.question_filename);
5670
run_task_with_stderr_to_dev_null(task, queue);
5671
5672
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5673
const task_context *const added_task
5674
= find_matching_task(queue, task);
5675
g_assert_nonnull(added_task);
5676
g_assert_true(queue->next_run == 1000000 + current_time);
5677
5678
g_assert_cmpint(unlink(filename), ==, 0);
5679
g_assert_cmpint(rmdir(tempdir), ==, 0);
5680
}
5681
5682
static
5683
void test_connect_question_socket_usable(__attribute__((unused))
5684
test_fixture *fixture,
5685
__attribute__((unused))
5686
gconstpointer user_data){
5687
__attribute__((cleanup(cleanup_close)))
5688
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5689
g_assert_cmpint(epoll_fd, >=, 0);
5690
__attribute__((cleanup(cleanup_string)))
5691
char *const question_filename = strdup("/nonexistent/question");
5692
g_assert_nonnull(question_filename);
5693
__attribute__((cleanup(string_set_clear)))
5694
string_set cancelled_filenames = {};
5695
buffer password = {};
5696
bool mandos_client_exited = false;
5697
bool password_is_read = false;
5698
const mono_microsecs current_time = 0;
5699
__attribute__((cleanup(cleanup_queue)))
5700
task_queue *queue = create_queue();
5701
g_assert_nonnull(queue);
5702
__attribute__((cleanup(cleanup_string)))
5703
char *tempdir = make_temporary_directory();
5704
g_assert_nonnull(tempdir);
5705
__attribute__((cleanup(cleanup_close)))
5706
const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM
5707
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);
5708
g_assert_cmpint(sock_fd, >=, 0);
5709
struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };
5710
const char socket_name[] = "socket_name";
5711
__attribute__((cleanup(cleanup_string)))
5712
char *filename = NULL;
5713
g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),
5714
>, 0);
5715
g_assert_nonnull(filename);
5716
g_assert_cmpint((int)strlen(filename), <,
5717
(int)sizeof(sock_name.sun_path));
5718
strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));
5719
sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';
5720
g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,
5721
(socklen_t)SUN_LEN(&sock_name)), >=, 0);
5722
task_context task = {
5723
.func=connect_question_socket,
5724
.question_filename=strdup(question_filename),
5725
.epoll_fd=epoll_fd,
5726
.password=&password,
5727
.filename=strdup(filename),
5728
.cancelled_filenames=&cancelled_filenames,
5729
.mandos_client_exited=&mandos_client_exited,
5730
.password_is_read=&password_is_read,
5731
.current_time=¤t_time,
5732
};
5733
g_assert_nonnull(task.question_filename);
5734
task.func(task, queue);
5735
5736
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5737
const task_context *const added_task
5738
= find_matching_task(queue, (task_context){
5739
.func=send_password_to_socket,
5740
.question_filename=question_filename,
5741
.filename=filename,
5742
.epoll_fd=epoll_fd,
5743
.password=&password,
5744
.cancelled_filenames=&cancelled_filenames,
5745
.mandos_client_exited=&mandos_client_exited,
5746
.password_is_read=&password_is_read,
5747
.current_time=¤t_time,
5748
});
5749
g_assert_nonnull(added_task);
5750
g_assert_cmpint(added_task->fd, >, 0);
5751
5752
g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,
5753
EPOLLOUT));
5754
5755
const int fd = added_task->fd;
5756
g_assert_cmpint(fd, >, 0);
5757
g_assert_true(fd_has_cloexec_and_nonblock(fd));
5758
5759
/* write to fd */
5760
char write_data[PIPE_BUF];
5761
{
5762
/* Construct test password buffer */
5763
/* Start with + since that is what the real procotol uses */
5764
write_data[0] = '+';
5765
/* Set a special character at string end just to mark the end */
5766
write_data[sizeof(write_data)-2] = 'y';
5767
/* Set NUL at buffer end, as suggested by the protocol */
5768
write_data[sizeof(write_data)-1] = '\0';
5769
/* Fill rest of password with 'x' */
5770
memset(write_data+1, 'x', sizeof(write_data)-3);
5771
g_assert_cmpint((int)send(fd, write_data, sizeof(write_data),
5772
MSG_NOSIGNAL), ==, sizeof(write_data));
5773
}
5774
5775
/* read from sock_fd */
5776
char read_data[sizeof(write_data)];
5777
g_assert_cmpint((int)read(sock_fd, read_data, sizeof(read_data)),
5778
==, sizeof(read_data));
5779
5780
g_assert_true(memcmp(write_data, read_data, sizeof(write_data))
5781
== 0);
5782
5783
/* writing to sock_fd should fail */
5784
g_assert_cmpint(send(sock_fd, write_data, sizeof(write_data),
5785
MSG_NOSIGNAL), <, 0);
5786
5787
/* reading from fd should fail */
5788
g_assert_cmpint((int)recv(fd, read_data, sizeof(read_data),
5789
MSG_NOSIGNAL), <, 0);
5790
5791
g_assert_cmpint(unlink(filename), ==, 0);
5792
g_assert_cmpint(rmdir(tempdir), ==, 0);
5793
}
5794
5795
static void
5796
test_send_password_to_socket_client_not_exited(__attribute__((unused))
5797
test_fixture *fixture,
5798
__attribute__((unused))
5799
gconstpointer
5800
user_data){
5801
__attribute__((cleanup(cleanup_close)))
5802
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5803
g_assert_cmpint(epoll_fd, >=, 0);
5804
__attribute__((cleanup(cleanup_string)))
5805
char *const question_filename = strdup("/nonexistent/question");
5806
g_assert_nonnull(question_filename);
5807
__attribute__((cleanup(cleanup_string)))
5808
char *const filename = strdup("/nonexistent/socket");
5809
g_assert_nonnull(filename);
5810
__attribute__((cleanup(string_set_clear)))
5811
string_set cancelled_filenames = {};
5812
buffer password = {};
5813
bool password_is_read = true;
5814
__attribute__((cleanup(cleanup_queue)))
5815
task_queue *queue = create_queue();
5816
g_assert_nonnull(queue);
5817
int socketfds[2];
5818
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
5819
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
5820
socketfds), ==, 0);
5821
__attribute__((cleanup(cleanup_close)))
5822
const int read_socket = socketfds[0];
5823
const int write_socket = socketfds[1];
5824
task_context task = {
5825
.func=send_password_to_socket,
5826
.question_filename=strdup(question_filename),
5827
.filename=strdup(filename),
5828
.epoll_fd=epoll_fd,
5829
.fd=write_socket,
5830
.password=&password,
5831
.cancelled_filenames=&cancelled_filenames,
5832
.mandos_client_exited=(bool[]){false},
5833
.password_is_read=&password_is_read,
5834
.current_time=(mono_microsecs[]){0},
5835
};
5836
g_assert_nonnull(task.question_filename);
5837
5838
task.func(task, queue);
5839
5840
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5841
5842
const task_context *const added_task
5843
= find_matching_task(queue, task);
5844
g_assert_nonnull(added_task);
5845
g_assert_cmpuint((unsigned int)password.length, ==, 0);
5846
g_assert_true(password_is_read);
5847
5848
g_assert_cmpint(added_task->fd, >, 0);
5849
g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,
5850
EPOLLOUT));
5851
}
5852
5853
static void
5854
test_send_password_to_socket_password_not_read(__attribute__((unused))
5855
test_fixture *fixture,
5856
__attribute__((unused))
5857
gconstpointer
5858
user_data){
5859
__attribute__((cleanup(cleanup_close)))
5860
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5861
g_assert_cmpint(epoll_fd, >=, 0);
5862
__attribute__((cleanup(cleanup_string)))
5863
char *const question_filename = strdup("/nonexistent/question");
5864
g_assert_nonnull(question_filename);
5865
__attribute__((cleanup(cleanup_string)))
5866
char *const filename = strdup("/nonexistent/socket");
5867
__attribute__((cleanup(string_set_clear)))
5868
string_set cancelled_filenames = {};
5869
buffer password = {};
5870
__attribute__((cleanup(cleanup_queue)))
5871
task_queue *queue = create_queue();
5872
g_assert_nonnull(queue);
5873
int socketfds[2];
5874
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
5875
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
5876
socketfds), ==, 0);
5877
__attribute__((cleanup(cleanup_close)))
5878
const int read_socket = socketfds[0];
5879
const int write_socket = socketfds[1];
5880
task_context task = {
5881
.func=send_password_to_socket,
5882
.question_filename=strdup(question_filename),
5883
.filename=strdup(filename),
5884
.epoll_fd=epoll_fd,
5885
.fd=write_socket,
5886
.password=&password,
5887
.cancelled_filenames=&cancelled_filenames,
5888
.mandos_client_exited=(bool[]){false},
5889
.password_is_read=(bool[]){false},
5890
.current_time=(mono_microsecs[]){0},
5891
};
5892
g_assert_nonnull(task.question_filename);
5893
5894
task.func(task, queue);
5895
5896
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5897
5898
const task_context *const added_task = find_matching_task(queue,
5899
task);
5900
g_assert_nonnull(added_task);
5901
g_assert_cmpuint((unsigned int)password.length, ==, 0);
5902
g_assert_true(queue->next_run == 0);
5903
5904
g_assert_cmpint(added_task->fd, >, 0);
5905
g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,
5906
EPOLLOUT));
5907
}
5908
5909
static
5910
void test_send_password_to_socket_EMSGSIZE(__attribute__((unused))
5911
test_fixture *fixture,
5912
__attribute__((unused))
5913
gconstpointer user_data){
5914
__attribute__((cleanup(cleanup_close)))
5915
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5916
g_assert_cmpint(epoll_fd, >=, 0);
5917
const char question_filename[] = "/nonexistent/question";
5918
char *const filename = strdup("/nonexistent/socket");
5919
__attribute__((cleanup(string_set_clear)))
5920
string_set cancelled_filenames = {};
5921
const size_t oversized = 1024*1024; /* Limit seems to be 212960 */
5922
__attribute__((cleanup(cleanup_buffer)))
5923
buffer password = {
5924
.data=malloc(oversized),
5925
.length=oversized,
5926
.allocated=oversized,
5927
};
5928
g_assert_nonnull(password.data);
5929
if(mlock(password.data, password.allocated) != 0){
5930
g_assert_true(errno == EPERM or errno == ENOMEM);
5931
}
5932
/* Construct test password buffer */
5933
/* Start with + since that is what the real procotol uses */
5934
password.data[0] = '+';
5935
/* Set a special character at string end just to mark the end */
5936
password.data[oversized-3] = 'y';
5937
/* Set NUL at buffer end, as suggested by the protocol */
5938
password.data[oversized-2] = '\0';
5939
/* Fill rest of password with 'x' */
5940
memset(password.data+1, 'x', oversized-3);
5941
5942
__attribute__((cleanup(cleanup_queue)))
5943
task_queue *queue = create_queue();
5944
g_assert_nonnull(queue);
5945
int socketfds[2];
5946
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
5947
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
5948
socketfds), ==, 0);
5949
__attribute__((cleanup(cleanup_close)))
5950
const int read_socket = socketfds[0];
5951
__attribute__((cleanup(cleanup_close)))
5952
const int write_socket = socketfds[1];
5953
task_context task = {
5954
.func=send_password_to_socket,
5955
.question_filename=strdup(question_filename),
5956
.filename=filename,
5957
.epoll_fd=epoll_fd,
5958
.fd=write_socket,
5959
.password=&password,
5960
.cancelled_filenames=&cancelled_filenames,
5961
.mandos_client_exited=(bool[]){true},
5962
.password_is_read=(bool[]){true},
5963
.current_time=(mono_microsecs[]){0},
5964
};
5965
g_assert_nonnull(task.question_filename);
5966
5967
run_task_with_stderr_to_dev_null(task, queue);
5968
5969
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5970
g_assert_true(string_set_contains(cancelled_filenames,
5971
question_filename));
5972
}
5973
5974
static void test_send_password_to_socket_retry(__attribute__((unused))
5975
test_fixture *fixture,
5976
__attribute__((unused))
5977
gconstpointer
5978
user_data){
5979
__attribute__((cleanup(cleanup_close)))
5980
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5981
g_assert_cmpint(epoll_fd, >=, 0);
5982
__attribute__((cleanup(cleanup_string)))
5983
char *const question_filename = strdup("/nonexistent/question");
5984
g_assert_nonnull(question_filename);
5985
__attribute__((cleanup(cleanup_string)))
5986
char *const filename = strdup("/nonexistent/socket");
5987
g_assert_nonnull(filename);
5988
__attribute__((cleanup(string_set_clear)))
5989
string_set cancelled_filenames = {};
5990
__attribute__((cleanup(cleanup_buffer)))
5991
buffer password = {};
5992
5993
__attribute__((cleanup(cleanup_queue)))
5994
task_queue *queue = create_queue();
5995
g_assert_nonnull(queue);
5996
int socketfds[2];
5997
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
5998
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
5999
socketfds), ==, 0);
6000
__attribute__((cleanup(cleanup_close)))
6001
const int read_socket = socketfds[0];
6002
const int write_socket = socketfds[1];
6003
/* Close the server side socket to force ECONNRESET on client */
6004
g_assert_cmpint(close(read_socket), ==, 0);
6005
task_context task = {
6006
.func=send_password_to_socket,
6007
.question_filename=strdup(question_filename),
6008
.filename=strdup(filename),
6009
.epoll_fd=epoll_fd,
6010
.fd=write_socket,
6011
.password=&password,
6012
.cancelled_filenames=&cancelled_filenames,
6013
.mandos_client_exited=(bool[]){true},
6014
.password_is_read=(bool[]){true},
6015
.current_time=(mono_microsecs[]){0},
6016
};
6017
g_assert_nonnull(task.question_filename);
6018
6019
task.func(task, queue);
6020
6021
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
6022
6023
const task_context *const added_task = find_matching_task(queue,
6024
task);
6025
g_assert_nonnull(added_task);
6026
g_assert_cmpuint((unsigned int)password.length, ==, 0);
6027
6028
g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,
6029
EPOLLOUT));
6030
}
6031
6032
static
6033
void test_send_password_to_socket_bad_epoll(__attribute__((unused))
6034
test_fixture *fixture,
6035
__attribute__((unused))
6036
gconstpointer user_data){
6037
__attribute__((cleanup(cleanup_close)))
6038
const int epoll_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);
6039
__attribute__((cleanup(cleanup_string)))
6040
char *const question_filename = strdup("/nonexistent/question");
6041
g_assert_nonnull(question_filename);
6042
__attribute__((cleanup(cleanup_string)))
6043
char *const filename = strdup("/nonexistent/socket");
6044
g_assert_nonnull(filename);
6045
__attribute__((cleanup(string_set_clear)))
6046
string_set cancelled_filenames = {};
6047
__attribute__((cleanup(cleanup_buffer)))
6048
buffer password = {};
6049
6050
const mono_microsecs current_time = 11;
6051
__attribute__((cleanup(cleanup_queue)))
6052
task_queue *queue = create_queue();
6053
g_assert_nonnull(queue);
6054
int socketfds[2];
6055
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
6056
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
6057
socketfds), ==, 0);
6058
__attribute__((cleanup(cleanup_close)))
6059
const int read_socket = socketfds[0];
6060
const int write_socket = socketfds[1];
6061
/* Close the server side socket to force ECONNRESET on client */
6062
g_assert_cmpint(close(read_socket), ==, 0);
6063
task_context task = {
6064
.func=send_password_to_socket,
6065
.question_filename=strdup(question_filename),
6066
.filename=strdup(filename),
6067
.epoll_fd=epoll_fd,
6068
.fd=write_socket,
6069
.password=&password,
6070
.cancelled_filenames=&cancelled_filenames,
6071
.mandos_client_exited=(bool[]){true},
6072
.password_is_read=(bool[]){true},
6073
.current_time=¤t_time,
6074
};
6075
g_assert_nonnull(task.question_filename);
6076
6077
run_task_with_stderr_to_dev_null(task, queue);
6078
6079
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
6080
6081
const task_context *const added_task = find_matching_task(queue,
6082
task);
6083
g_assert_nonnull(added_task);
6084
g_assert_true(queue->next_run == current_time + 1000000);
6085
g_assert_cmpuint((unsigned int)password.length, ==, 0);
6086
}
6087
6088
static void assert_send_password_to_socket_password(buffer password){
6089
__attribute__((cleanup(cleanup_close)))
6090
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6091
g_assert_cmpint(epoll_fd, >=, 0);
6092
char *const question_filename = strdup("/nonexistent/question");
6093
g_assert_nonnull(question_filename);
6094
char *const filename = strdup("/nonexistent/socket");
6095
g_assert_nonnull(filename);
6096
__attribute__((cleanup(string_set_clear)))
6097
string_set cancelled_filenames = {};
6098
6099
__attribute__((cleanup(cleanup_queue)))
6100
task_queue *queue = create_queue();
6101
g_assert_nonnull(queue);
6102
int socketfds[2];
6103
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
6104
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
6105
socketfds), ==, 0);
6106
__attribute__((cleanup(cleanup_close)))
6107
const int read_socket = socketfds[0];
6108
const int write_socket = socketfds[1];
6109
task_context task = {
6110
.func=send_password_to_socket,
6111
.question_filename=question_filename,
6112
.filename=filename,
6113
.epoll_fd=epoll_fd,
6114
.fd=write_socket,
6115
.password=&password,
6116
.cancelled_filenames=&cancelled_filenames,
6117
.mandos_client_exited=(bool[]){true},
6118
.password_is_read=(bool[]){true},
6119
.current_time=(mono_microsecs[]){0},
6120
};
6121
6122
char *expected_written_data = malloc(password.length + 2);
6123
g_assert_nonnull(expected_written_data);
6124
expected_written_data[0] = '+';
6125
expected_written_data[password.length + 1] = '\0';
6126
if(password.length > 0){
6127
g_assert_nonnull(password.data);
6128
memcpy(expected_written_data + 1, password.data, password.length);
6129
}
6130
6131
task.func(task, queue);
6132
6133
char buf[PIPE_BUF];
6134
g_assert_cmpint((int)read(read_socket, buf, PIPE_BUF), ==,
6135
(int)(password.length + 2));
6136
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
6137
6138
g_assert_true(memcmp(expected_written_data, buf,
6139
password.length + 2) == 0);
6140
6141
g_assert_true(epoll_set_does_not_contain(epoll_fd, write_socket));
6142
6143
free(expected_written_data);
6144
}
6145
6146
static void
6147
test_send_password_to_socket_null_password(__attribute__((unused))
6148
test_fixture *fixture,
6149
__attribute__((unused))
6150
gconstpointer user_data){
6151
__attribute__((cleanup(cleanup_buffer)))
6152
buffer password = {};
6153
assert_send_password_to_socket_password(password);
6154
}
6155
6156
static void
6157
test_send_password_to_socket_empty_password(__attribute__((unused))
6158
test_fixture *fixture,
6159
__attribute__((unused))
6160
gconstpointer user_data){
6161
__attribute__((cleanup(cleanup_buffer)))
6162
buffer password = {
6163
.data=malloc(1), /* because malloc(0) may return NULL */
6164
.length=0,
6165
.allocated=0, /* deliberate lie */
6166
};
6167
g_assert_nonnull(password.data);
6168
assert_send_password_to_socket_password(password);
6169
}
6170
6171
static void
6172
test_send_password_to_socket_empty_str_pass(__attribute__((unused))
6173
test_fixture *fixture,
6174
__attribute__((unused))
6175
gconstpointer user_data){
6176
__attribute__((cleanup(cleanup_buffer)))
6177
buffer password = {
6178
.data=strdup(""),
6179
.length=0,
6180
.allocated=1,
6181
};
6182
if(mlock(password.data, password.allocated) != 0){
6183
g_assert_true(errno == EPERM or errno == ENOMEM);
6184
}
6185
assert_send_password_to_socket_password(password);
6186
}
6187
6188
static void
6189
test_send_password_to_socket_text_password(__attribute__((unused))
6190
test_fixture *fixture,
6191
__attribute__((unused))
6192
gconstpointer user_data){
6193
const char dummy_test_password[] = "dummy test password";
6194
__attribute__((cleanup(cleanup_buffer)))
6195
buffer password = {
6196
.data = strdup(dummy_test_password),
6197
.length = strlen(dummy_test_password),
6198
.allocated = sizeof(dummy_test_password),
6199
};
6200
if(mlock(password.data, password.allocated) != 0){
6201
g_assert_true(errno == EPERM or errno == ENOMEM);
6202
}
6203
assert_send_password_to_socket_password(password);
6204
}
6205
6206
static void
6207
test_send_password_to_socket_binary_password(__attribute__((unused))
6208
test_fixture *fixture,
6209
__attribute__((unused))
6210
gconstpointer user_data){
6211
__attribute__((cleanup(cleanup_buffer)))
6212
buffer password = {
6213
.data=malloc(255),
6214
.length=255,
6215
.allocated=255,
6216
};
6217
g_assert_nonnull(password.data);
6218
if(mlock(password.data, password.allocated) != 0){
6219
g_assert_true(errno == EPERM or errno == ENOMEM);
6220
}
6221
char c = 1; /* Start at 1, avoiding NUL */
6222
for(int i=0; i < 255; i++){
6223
password.data[i] = c++;
6224
}
6225
assert_send_password_to_socket_password(password);
6226
}
6227
6228
static void
6229
test_send_password_to_socket_nuls_in_password(__attribute__((unused))
6230
test_fixture *fixture,
6231
__attribute__((unused))
6232
gconstpointer
6233
user_data){
6234
char test_password[] = {'\0', 'a', '\0', 'b', '\0', 'c', '\0'};
6235
__attribute__((cleanup(cleanup_buffer)))
6236
buffer password = {
6237
.data=malloc(sizeof(test_password)),
6238
.length=sizeof(test_password),
6239
.allocated=sizeof(test_password),
6240
};
6241
g_assert_nonnull(password.data);
6242
if(mlock(password.data, password.allocated) !=0){
6243
g_assert_true(errno == EPERM or errno == ENOMEM);
6244
}
6245
memcpy(password.data, test_password, password.allocated);
6246
assert_send_password_to_socket_password(password);
6247
}
6248
6249
static bool assert_add_existing_questions_to_devnull(task_queue
6250
*const,
6251
const int,
6252
buffer *const,
6253
string_set *,
6254
const
6255
mono_microsecs
6256
*const,
6257
bool *const,
6258
bool *const,
6259
const char
6260
*const);
6261
6262
static void test_add_existing_questions_ENOENT(__attribute__((unused))
6263
test_fixture *fixture,
6264
__attribute__((unused))
6265
gconstpointer
6266
user_data){
6267
__attribute__((cleanup(cleanup_queue)))
6268
task_queue *queue = create_queue();
6269
g_assert_nonnull(queue);
6270
__attribute__((cleanup(cleanup_close)))
6271
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6272
g_assert_cmpint(epoll_fd, >=, 0);
6273
__attribute__((cleanup(string_set_clear)))
6274
string_set cancelled_filenames = {};
6275
6276
g_assert_false(assert_add_existing_questions_to_devnull
6277
(queue,
6278
epoll_fd,
6279
(buffer[]){{}}, /* password */
6280
&cancelled_filenames,
6281
(mono_microsecs[]){0}, /* current_time */
6282
(bool[]){false}, /* mandos_client_exited */
6283
(bool[]){false}, /* password_is_read */
6284
"/nonexistent")); /* dirname */
6285
6286
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
6287
}
6288
6289
static
6290
bool assert_add_existing_questions_to_devnull(task_queue
6291
*const queue,
6292
const int
6293
epoll_fd,
6294
buffer *const
6295
password,
6296
string_set
6297
*cancelled_filenames,
6298
const mono_microsecs
6299
*const current_time,
6300
bool *const
6301
mandos_client_exited,
6302
bool *const
6303
password_is_read,
6304
const char *const
6305
dirname){
6306
__attribute__((cleanup(cleanup_close)))
6307
const int devnull_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);
6308
g_assert_cmpint(devnull_fd, >=, 0);
6309
__attribute__((cleanup(cleanup_close)))
6310
const int real_stderr_fd = dup(STDERR_FILENO);
6311
g_assert_cmpint(real_stderr_fd, >=, 0);
6312
dup2(devnull_fd, STDERR_FILENO);
6313
const bool ret = add_existing_questions(queue, epoll_fd, password,
6314
cancelled_filenames,
6315
current_time,
6316
mandos_client_exited,
6317
password_is_read, dirname);
6318
dup2(real_stderr_fd, STDERR_FILENO);
6319
return ret;
6320
}
6321
6322
static
6323
void test_add_existing_questions_no_questions(__attribute__((unused))
6324
test_fixture *fixture,
6325
__attribute__((unused))
6326
gconstpointer
6327
user_data){
6328
__attribute__((cleanup(cleanup_queue)))
6329
task_queue *queue = create_queue();
6330
g_assert_nonnull(queue);
6331
__attribute__((cleanup(cleanup_close)))
6332
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6333
g_assert_cmpint(epoll_fd, >=, 0);
6334
__attribute__((cleanup(string_set_clear)))
6335
string_set cancelled_filenames = {};
6336
__attribute__((cleanup(cleanup_string)))
6337
char *tempdir = make_temporary_directory();
6338
g_assert_nonnull(tempdir);
6339
6340
g_assert_false(assert_add_existing_questions_to_devnull
6341
(queue,
6342
epoll_fd,
6343
(buffer[]){{}}, /* password */
6344
&cancelled_filenames,
6345
(mono_microsecs[]){0}, /* current_time */
6346
(bool[]){false}, /* mandos_client_exited */
6347
(bool[]){false}, /* password_is_read */
6348
tempdir));
6349
6350
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
6351
6352
g_assert_cmpint(rmdir(tempdir), ==, 0);
6353
}
6354
6355
static char *make_question_file_in_directory(const char *const);
6356
6357
static
6358
void test_add_existing_questions_one_question(__attribute__((unused))
6359
test_fixture *fixture,
6360
__attribute__((unused))
6361
gconstpointer
6362
user_data){
6363
__attribute__((cleanup(cleanup_queue)))
6364
task_queue *queue = create_queue();
6365
g_assert_nonnull(queue);
6366
__attribute__((cleanup(cleanup_close)))
6367
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6368
g_assert_cmpint(epoll_fd, >=, 0);
6369
__attribute__((cleanup(cleanup_buffer)))
6370
buffer password = {};
6371
__attribute__((cleanup(string_set_clear)))
6372
string_set cancelled_filenames = {};
6373
const mono_microsecs current_time = 0;
6374
bool mandos_client_exited = false;
6375
bool password_is_read = false;
6376
__attribute__((cleanup(cleanup_string)))
6377
char *tempdir = make_temporary_directory();
6378
g_assert_nonnull(tempdir);
6379
__attribute__((cleanup(cleanup_string)))
6380
char *question_filename
6381
= make_question_file_in_directory(tempdir);
6382
g_assert_nonnull(question_filename);
6383
6384
g_assert_true(assert_add_existing_questions_to_devnull
6385
(queue,
6386
epoll_fd,
6387
&password,
6388
&cancelled_filenames,
6389
¤t_time,
6390
&mandos_client_exited,
6391
&password_is_read,
6392
tempdir));
6393
6394
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
6395
6396
g_assert_nonnull(find_matching_task(queue, (task_context){
6397
.func=open_and_parse_question,
6398
.epoll_fd=epoll_fd,
6399
.filename=question_filename,
6400
.question_filename=question_filename,
6401
.password=&password,
6402
.cancelled_filenames=&cancelled_filenames,
6403
.current_time=¤t_time,
6404
.mandos_client_exited=&mandos_client_exited,
6405
.password_is_read=&password_is_read,
6406
}));
6407
6408
g_assert_true(queue->next_run == 1);
6409
6410
g_assert_cmpint(unlink(question_filename), ==, 0);
6411
g_assert_cmpint(rmdir(tempdir), ==, 0);
6412
}
6413
6414
static char *make_question_file_in_directory(const char
6415
*const dir){
6416
return make_temporary_prefixed_file_in_directory("ask.", dir);
6417
}
6418
6419
static
6420
void test_add_existing_questions_two_questions(__attribute__((unused))
6421
test_fixture *fixture,
6422
__attribute__((unused))
6423
gconstpointer
6424
user_data){
6425
__attribute__((cleanup(cleanup_queue)))
6426
task_queue *queue = create_queue();
6427
g_assert_nonnull(queue);
6428
__attribute__((cleanup(cleanup_close)))
6429
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6430
g_assert_cmpint(epoll_fd, >=, 0);
6431
__attribute__((cleanup(cleanup_buffer)))
6432
buffer password = {};
6433
__attribute__((cleanup(string_set_clear)))
6434
string_set cancelled_filenames = {};
6435
const mono_microsecs current_time = 0;
6436
bool mandos_client_exited = false;
6437
bool password_is_read = false;
6438
__attribute__((cleanup(cleanup_string)))
6439
char *tempdir = make_temporary_directory();
6440
g_assert_nonnull(tempdir);
6441
__attribute__((cleanup(cleanup_string)))
6442
char *question_filename1
6443
= make_question_file_in_directory(tempdir);
6444
g_assert_nonnull(question_filename1);
6445
__attribute__((cleanup(cleanup_string)))
6446
char *question_filename2
6447
= make_question_file_in_directory(tempdir);
6448
g_assert_nonnull(question_filename2);
6449
6450
g_assert_true(assert_add_existing_questions_to_devnull
6451
(queue,
6452
epoll_fd,
6453
&password,
6454
&cancelled_filenames,
6455
¤t_time,
6456
&mandos_client_exited,
6457
&password_is_read,
6458
tempdir));
6459
6460
g_assert_cmpuint((unsigned int)queue->length, ==, 2);
6461
6462
g_assert_true(queue->next_run == 1);
6463
6464
__attribute__((cleanup(string_set_clear)))
6465
string_set seen_questions = {};
6466
6467
bool queue_contains_question_opener(char *const question_filename){
6468
return(find_matching_task(queue, (task_context){
6469
.func=open_and_parse_question,
6470
.epoll_fd=epoll_fd,
6471
.question_filename=question_filename,
6472
.password=&password,
6473
.cancelled_filenames=&cancelled_filenames,
6474
.current_time=¤t_time,
6475
.mandos_client_exited=&mandos_client_exited,
6476
.password_is_read=&password_is_read,
6477
}) != NULL);
6478
}
6479
6480
g_assert_true(queue_contains_question_opener(question_filename1));
6481
g_assert_true(queue_contains_question_opener(question_filename2));
6482
6483
g_assert_true(queue->next_run == 1);
6484
6485
g_assert_cmpint(unlink(question_filename1), ==, 0);
6486
g_assert_cmpint(unlink(question_filename2), ==, 0);
6487
g_assert_cmpint(rmdir(tempdir), ==, 0);
6488
}
6489
6490
static void
6491
test_add_existing_questions_non_questions(__attribute__((unused))
6492
test_fixture *fixture,
6493
__attribute__((unused))
6494
gconstpointer user_data){
6495
__attribute__((cleanup(cleanup_queue)))
6496
task_queue *queue = create_queue();
6497
g_assert_nonnull(queue);
6498
__attribute__((cleanup(cleanup_close)))
6499
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6500
g_assert_cmpint(epoll_fd, >=, 0);
6501
__attribute__((cleanup(string_set_clear)))
6502
string_set cancelled_filenames = {};
6503
__attribute__((cleanup(cleanup_string)))
6504
char *tempdir = make_temporary_directory();
6505
g_assert_nonnull(tempdir);
6506
__attribute__((cleanup(cleanup_string)))
6507
char *question_filename1
6508
= make_temporary_file_in_directory(tempdir);
6509
g_assert_nonnull(question_filename1);
6510
__attribute__((cleanup(cleanup_string)))
6511
char *question_filename2
6512
= make_temporary_file_in_directory(tempdir);
6513
g_assert_nonnull(question_filename2);
6514
6515
g_assert_false(assert_add_existing_questions_to_devnull
6516
(queue,
6517
epoll_fd,
6518
(buffer[]){{}}, /* password */
6519
&cancelled_filenames,
6520
(mono_microsecs[]){0}, /* current_time */
6521
(bool[]){false}, /* mandos_client_exited */
6522
(bool[]){false}, /* password_is_read */
6523
tempdir));
6524
6525
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
6526
6527
g_assert_cmpint(unlink(question_filename1), ==, 0);
6528
g_assert_cmpint(unlink(question_filename2), ==, 0);
6529
g_assert_cmpint(rmdir(tempdir), ==, 0);
6530
}
6531
6532
static void
6533
test_add_existing_questions_both_types(__attribute__((unused))
6534
test_fixture *fixture,
6535
__attribute__((unused))
6536
gconstpointer user_data){
6537
__attribute__((cleanup(cleanup_queue)))
6538
task_queue *queue = create_queue();
6539
g_assert_nonnull(queue);
6540
__attribute__((cleanup(cleanup_close)))
6541
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6542
g_assert_cmpint(epoll_fd, >=, 0);
6543
__attribute__((cleanup(cleanup_buffer)))
6544
buffer password = {};
6545
__attribute__((cleanup(string_set_clear)))
6546
string_set cancelled_filenames = {};
6547
const mono_microsecs current_time = 0;
6548
bool mandos_client_exited = false;
6549
bool password_is_read = false;
6550
__attribute__((cleanup(cleanup_string)))
6551
char *tempdir = make_temporary_directory();
6552
g_assert_nonnull(tempdir);
6553
__attribute__((cleanup(cleanup_string)))
6554
char *tempfilename1 = make_temporary_file_in_directory(tempdir);
6555
g_assert_nonnull(tempfilename1);
6556
__attribute__((cleanup(cleanup_string)))
6557
char *tempfilename2 = make_temporary_file_in_directory(tempdir);
6558
g_assert_nonnull(tempfilename2);
6559
__attribute__((cleanup(cleanup_string)))
6560
char *question_filename
6561
= make_question_file_in_directory(tempdir);
6562
g_assert_nonnull(question_filename);
6563
6564
g_assert_true(assert_add_existing_questions_to_devnull
6565
(queue,
6566
epoll_fd,
6567
&password,
6568
&cancelled_filenames,
6569
¤t_time,
6570
&mandos_client_exited,
6571
&password_is_read,
6572
tempdir));
6573
6574
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
6575
6576
g_assert_nonnull(find_matching_task(queue, (task_context){
6577
.func=open_and_parse_question,
6578
.epoll_fd=epoll_fd,
6579
.filename=question_filename,
6580
.question_filename=question_filename,
6581
.password=&password,
6582
.cancelled_filenames=&cancelled_filenames,
6583
.current_time=¤t_time,
6584
.mandos_client_exited=&mandos_client_exited,
6585
.password_is_read=&password_is_read,
6586
}));
6587
6588
g_assert_true(queue->next_run == 1);
6589
6590
g_assert_cmpint(unlink(tempfilename1), ==, 0);
6591
g_assert_cmpint(unlink(tempfilename2), ==, 0);
6592
g_assert_cmpint(unlink(question_filename), ==, 0);
6593
g_assert_cmpint(rmdir(tempdir), ==, 0);
6594
}
6595
6596
static void test_wait_for_event_timeout(__attribute__((unused))
6597
test_fixture *fixture,
6598
__attribute__((unused))
6599
gconstpointer user_data){
6600
__attribute__((cleanup(cleanup_close)))
6601
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6602
g_assert_cmpint(epoll_fd, >=, 0);
6603
6604
g_assert_true(wait_for_event(epoll_fd, 1, 0));
6605
}
6606
6607
static void test_wait_for_event_event(__attribute__((unused))
6608
test_fixture *fixture,
6609
__attribute__((unused))
6610
gconstpointer user_data){
6611
__attribute__((cleanup(cleanup_close)))
6612
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6613
g_assert_cmpint(epoll_fd, >=, 0);
6614
int pipefds[2];
6615
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
6616
__attribute__((cleanup(cleanup_close)))
6617
const int read_pipe = pipefds[0];
6618
__attribute__((cleanup(cleanup_close)))
6619
const int write_pipe = pipefds[1];
6620
g_assert_cmpint(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, read_pipe,
6621
&(struct epoll_event)
6622
{ .events=EPOLLIN | EPOLLRDHUP }), ==, 0);
6623
g_assert_cmpint((int)write(write_pipe, "x", 1), ==, 1);
6624
6625
g_assert_true(wait_for_event(epoll_fd, 0, 0));
6626
}
6627
6628
static void test_wait_for_event_sigchld(test_fixture *fixture,
6629
__attribute__((unused))
6630
gconstpointer user_data){
6631
const pid_t pid = fork();
6632
if(pid == 0){ /* Child */
6633
if(not restore_signal_handler(&fixture->orig_sigaction)){
6634
_exit(EXIT_FAILURE);
6635
}
6636
if(not restore_sigmask(&fixture->orig_sigmask)){
6637
_exit(EXIT_FAILURE);
6638
}
6639
exit(EXIT_SUCCESS);
6640
}
6641
g_assert_true(pid != -1);
6642
__attribute__((cleanup(cleanup_close)))
6643
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6644
g_assert_cmpint(epoll_fd, >=, 0);
6645
6646
g_assert_true(wait_for_event(epoll_fd, 0, 0));
6647
6648
int status;
6649
g_assert_true(waitpid(pid, &status, 0) == pid);
6650
g_assert_true(WIFEXITED(status));
6651
g_assert_cmpint(WEXITSTATUS(status), ==, EXIT_SUCCESS);
6652
}
6653
6654
static void test_run_queue_zeroes_next_run(__attribute__((unused))
6655
test_fixture *fixture,
6656
__attribute__((unused))
6657
gconstpointer user_data){
6658
__attribute__((cleanup(cleanup_queue)))
6659
task_queue *queue = create_queue();
6660
g_assert_nonnull(queue);
6661
queue->next_run = 1;
6662
__attribute__((cleanup(cleanup_close)))
6663
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6664
__attribute__((cleanup(string_set_clear)))
6665
string_set cancelled_filenames = {};
6666
bool quit_now = false;
6667
6668
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
6669
g_assert_false(quit_now);
6670
g_assert_cmpuint((unsigned int)queue->next_run, ==, 0);
6671
}
6672
6673
static
6674
void test_run_queue_clears_cancelled_filenames(__attribute__((unused))
6675
test_fixture *fixture,
6676
__attribute__((unused))
6677
gconstpointer
6678
user_data){
6679
__attribute__((cleanup(cleanup_queue)))
6680
task_queue *queue = create_queue();
6681
g_assert_nonnull(queue);
6682
__attribute__((cleanup(string_set_clear)))
6683
string_set cancelled_filenames = {};
6684
bool quit_now = false;
6685
const char question_filename[] = "/nonexistent/question_filename";
6686
g_assert_true(string_set_add(&cancelled_filenames,
6687
question_filename));
6688
6689
g_assert_true(add_to_queue(queue,
6690
(task_context){ .func=dummy_func }));
6691
6692
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
6693
g_assert_false(quit_now);
6694
g_assert_cmpuint((unsigned int)(queue->length), ==, 0);
6695
g_assert_false(string_set_contains(cancelled_filenames,
6696
question_filename));
6697
}
6698
6699
static
6700
void test_run_queue_skips_cancelled_filenames(__attribute__((unused))
6701
test_fixture *fixture,
6702
__attribute__((unused))
6703
gconstpointer
6704
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
int pipefds[2];
6712
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
6713
__attribute__((cleanup(cleanup_close)))
6714
const int read_pipe = pipefds[0];
6715
g_assert_cmpint(close(pipefds[1]), ==, 0);
6716
const char question_filename[] = "/nonexistent/question_filename";
6717
g_assert_true(string_set_add(&cancelled_filenames,
6718
question_filename));
6719
__attribute__((nonnull))
6720
void quit_func(const task_context task,
6721
__attribute__((unused)) task_queue *const q){
6722
g_assert_nonnull(task.quit_now);
6723
*task.quit_now = true;
6724
}
6725
task_context task = {
6726
.func=quit_func,
6727
.question_filename=strdup(question_filename),
6728
.quit_now=&quit_now,
6729
.fd=read_pipe,
6730
};
6731
g_assert_nonnull(task.question_filename);
6732
6733
g_assert_true(add_to_queue(queue, task));
6734
6735
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
6736
g_assert_false(quit_now);
6737
6738
/* read_pipe should be closed already */
6739
errno = 0;
6740
bool read_pipe_closed = (close(read_pipe) == -1);
6741
read_pipe_closed &= (errno == EBADF);
6742
g_assert_true(read_pipe_closed);
6743
}
6744
6745
static void test_run_queue_one_task(__attribute__((unused))
6746
test_fixture *fixture,
6747
__attribute__((unused))
6748
gconstpointer user_data){
6749
__attribute__((cleanup(cleanup_queue)))
6750
task_queue *queue = create_queue();
6751
g_assert_nonnull(queue);
6752
__attribute__((cleanup(string_set_clear)))
6753
string_set cancelled_filenames = {};
6754
bool quit_now = false;
6755
6756
__attribute__((nonnull))
6757
void next_run_func(__attribute__((unused))
6758
const task_context task,
6759
task_queue *const q){
6760
q->next_run = 1;
6761
}
6762
6763
task_context task = {
6764
.func=next_run_func,
6765
};
6766
g_assert_true(add_to_queue(queue, task));
6767
6768
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
6769
g_assert_cmpuint((unsigned int)(queue->next_run), ==, 1);
6770
g_assert_cmpuint((unsigned int)(queue->length), ==, 0);
6771
}
6772
6773
static void test_run_queue_two_tasks(__attribute__((unused))
6774
test_fixture *fixture,
6775
__attribute__((unused))
6776
gconstpointer user_data){
6777
__attribute__((cleanup(cleanup_queue)))
6778
task_queue *queue = create_queue();
6779
g_assert_nonnull(queue);
6780
queue->next_run = 1;
6781
__attribute__((cleanup(string_set_clear)))
6782
string_set cancelled_filenames = {};
6783
bool quit_now = false;
6784
bool mandos_client_exited = false;
6785
6786
__attribute__((nonnull))
6787
void next_run_func(__attribute__((unused))
6788
const task_context task,
6789
task_queue *const q){
6790
q->next_run = 1;
6791
}
6792
6793
__attribute__((nonnull))
6794
void exited_func(const task_context task,
6795
__attribute__((unused)) task_queue *const q){
6796
*task.mandos_client_exited = true;
6797
}
6798
6799
task_context task1 = {
6800
.func=next_run_func,
6801
};
6802
g_assert_true(add_to_queue(queue, task1));
6803
6804
task_context task2 = {
6805
.func=exited_func,
6806
.mandos_client_exited=&mandos_client_exited,
6807
};
6808
g_assert_true(add_to_queue(queue, task2));
6809
6810
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
6811
g_assert_false(quit_now);
6812
g_assert_cmpuint((unsigned int)(queue->next_run), ==, 1);
6813
g_assert_true(mandos_client_exited);
6814
g_assert_cmpuint((unsigned int)(queue->length), ==, 0);
6815
}
6816
6817
static void test_run_queue_two_tasks_quit(__attribute__((unused))
6818
test_fixture *fixture,
6819
__attribute__((unused))
6820
gconstpointer user_data){
6821
__attribute__((cleanup(cleanup_queue)))
6822
task_queue *queue = create_queue();
6823
g_assert_nonnull(queue);
6824
__attribute__((cleanup(string_set_clear)))
6825
string_set cancelled_filenames = {};
6826
bool quit_now = false;
6827
bool mandos_client_exited = false;
6828
bool password_is_read = false;
6829
6830
__attribute__((nonnull))
6831
void set_exited_func(const task_context task,
6832
__attribute__((unused)) task_queue *const q){
6833
*task.mandos_client_exited = true;
6834
*task.quit_now = true;
6835
}
6836
task_context task1 = {
6837
.func=set_exited_func,
6838
.quit_now=&quit_now,
6839
.mandos_client_exited=&mandos_client_exited,
6840
};
6841
g_assert_true(add_to_queue(queue, task1));
6842
6843
__attribute__((nonnull))
6844
void set_read_func(const task_context task,
6845
__attribute__((unused)) task_queue *const q){
6846
*task.quit_now = true;
6847
*task.password_is_read = true;
6848
}
6849
task_context task2 = {
6850
.func=set_read_func,
6851
.quit_now=&quit_now,
6852
.password_is_read=&password_is_read,
6853
};
6854
g_assert_true(add_to_queue(queue, task2));
6855
6856
g_assert_false(run_queue(&queue, &cancelled_filenames, &quit_now));
6857
g_assert_true(quit_now);
6858
g_assert_true(mandos_client_exited xor password_is_read);
6859
g_assert_cmpuint((unsigned int)(queue->length), ==, 0);
6860
}
6861
6862
static void test_run_queue_two_tasks_cleanup(__attribute__((unused))
6863
test_fixture *fixture,
6864
__attribute__((unused))
6865
gconstpointer user_data){
6866
__attribute__((cleanup(cleanup_queue)))
6867
task_queue *queue = create_queue();
6868
g_assert_nonnull(queue);
6869
__attribute__((cleanup(string_set_clear)))
6870
string_set cancelled_filenames = {};
6871
int pipefds[2];
6872
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
6873
__attribute__((cleanup(cleanup_close)))
6874
const int read_pipe = pipefds[0];
6875
__attribute__((cleanup(cleanup_close)))
6876
const int write_pipe = pipefds[1];
6877
bool quit_now = false;
6878
6879
__attribute__((nonnull))
6880
void read_func(const task_context task,
6881
__attribute__((unused)) task_queue *const q){
6882
*task.quit_now = true;
6883
}
6884
task_context task1 = {
6885
.func=read_func,
6886
.quit_now=&quit_now,
6887
.fd=read_pipe,
6888
};
6889
g_assert_true(add_to_queue(queue, task1));
6890
6891
__attribute__((nonnull))
6892
void write_func(const task_context task,
6893
__attribute__((unused)) task_queue *const q){
6894
*task.quit_now = true;
6895
}
6896
task_context task2 = {
6897
.func=write_func,
6898
.quit_now=&quit_now,
6899
.fd=write_pipe,
6900
};
6901
g_assert_true(add_to_queue(queue, task2));
6902
6903
g_assert_false(run_queue(&queue, &cancelled_filenames, &quit_now));
6904
g_assert_true(quit_now);
6905
6906
/* Either read_pipe or write_pipe should be closed already */
6907
errno = 0;
6908
bool close_read_pipe = (close(read_pipe) == -1);
6909
close_read_pipe &= (errno == EBADF);
6910
errno = 0;
6911
bool close_write_pipe = (close(write_pipe) == -1);
6912
close_write_pipe &= (errno == EBADF);
6913
g_assert_true(close_read_pipe xor close_write_pipe);
6914
g_assert_cmpuint((unsigned int)(queue->length), ==, 0);
6915
}
6916
6917
static void test_setup_signal_handler(__attribute__((unused))
6918
test_fixture *fixture,
6919
__attribute__((unused))
6920
gconstpointer user_data){
6921
/* Save current SIGCHLD action, whatever it is */
6922
struct sigaction expected_sigchld_action;
6923
g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),
6924
==, 0);
6925
6926
/* Act; i.e. run the setup_signal_handler() function */
6927
struct sigaction actual_old_sigchld_action;
6928
g_assert_true(setup_signal_handler(&actual_old_sigchld_action));
6929
6930
/* Check that the function correctly set "actual_old_sigchld_action"
6931
to the same values as the previously saved
6932
"expected_sigchld_action" */
6933
/* Check member sa_handler */
6934
g_assert_true(actual_old_sigchld_action.sa_handler
6935
== expected_sigchld_action.sa_handler);
6936
/* Check member sa_mask */
6937
for(int signum = 1; signum < NSIG; signum++){
6938
const int expected_old_block_state
6939
= sigismember(&expected_sigchld_action.sa_mask, signum);
6940
g_assert_cmpint(expected_old_block_state, >=, 0);
6941
const int actual_old_block_state
6942
= sigismember(&actual_old_sigchld_action.sa_mask, signum);
6943
g_assert_cmpint(actual_old_block_state, >=, 0);
6944
g_assert_cmpint(actual_old_block_state,
6945
==, expected_old_block_state);
6946
}
6947
/* Check member sa_flags */
6948
g_assert_true((actual_old_sigchld_action.sa_flags
6949
& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))
6950
== (expected_sigchld_action.sa_flags
6951
& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));
6952
6953
/* Retrieve the current signal handler for SIGCHLD as set by
6954
setup_signal_handler() */
6955
struct sigaction actual_new_sigchld_action;
6956
g_assert_cmpint(sigaction(SIGCHLD, NULL,
6957
&actual_new_sigchld_action), ==, 0);
6958
/* Check that the signal handler (member sa_handler) is correctly
6959
set to the "handle_sigchld" function */
6960
g_assert_true(actual_new_sigchld_action.sa_handler != SIG_DFL);
6961
g_assert_true(actual_new_sigchld_action.sa_handler != SIG_IGN);
6962
g_assert_true(actual_new_sigchld_action.sa_handler
6963
== handle_sigchld);
6964
/* Check (in member sa_mask) that at least a handful of signals are
6965
actually blocked during the signal handler */
6966
for(int signum = 1; signum < NSIG; signum++){
6967
int actual_new_block_state;
6968
switch(signum){
6969
case SIGTERM:
6970
case SIGINT:
6971
case SIGQUIT:
6972
case SIGHUP:
6973
actual_new_block_state
6974
= sigismember(&actual_new_sigchld_action.sa_mask, signum);
6975
g_assert_cmpint(actual_new_block_state, ==, 1);
6976
continue;
6977
case SIGKILL: /* non-blockable */
6978
case SIGSTOP: /* non-blockable */
6979
case SIGCHLD: /* always blocked */
6980
default:
6981
continue;
6982
}
6983
}
6984
/* Check member sa_flags */
6985
g_assert_true((actual_new_sigchld_action.sa_flags
6986
& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))
6987
== (SA_NOCLDSTOP | SA_RESTART));
6988
6989
/* Restore signal handler */
6990
g_assert_cmpint(sigaction(SIGCHLD, &expected_sigchld_action, NULL),
6991
==, 0);
6992
}
6993
6994
static void test_restore_signal_handler(__attribute__((unused))
6995
test_fixture *fixture,
6996
__attribute__((unused))
6997
gconstpointer user_data){
6998
/* Save current SIGCHLD action, whatever it is */
6999
struct sigaction expected_sigchld_action;
7000
g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),
7001
==, 0);
7002
/* Since we haven't established a signal handler yet, there should
7003
not be one established. But another test may have relied on
7004
restore_signal_handler() to restore the signal handler, and if
7005
restore_signal_handler() is buggy (which we should be prepared
7006
for in this test) the signal handler may not have been restored
7007
properly; check for this: */
7008
g_assert_true(expected_sigchld_action.sa_handler != handle_sigchld);
7009
7010
/* Establish a signal handler */
7011
struct sigaction sigchld_action = {
7012
.sa_handler=handle_sigchld,
7013
.sa_flags=SA_RESTART | SA_NOCLDSTOP,
7014
};
7015
g_assert_cmpint(sigfillset(&sigchld_action.sa_mask), ==, 0);
7016
g_assert_cmpint(sigaction(SIGCHLD, &sigchld_action, NULL), ==, 0);
7017
7018
/* Act; i.e. run the restore_signal_handler() function */
7019
g_assert_true(restore_signal_handler(&expected_sigchld_action));
7020
7021
/* Retrieve the restored signal handler data */
7022
struct sigaction actual_restored_sigchld_action;
7023
g_assert_cmpint(sigaction(SIGCHLD, NULL,
7024
&actual_restored_sigchld_action), ==, 0);
7025
7026
/* Check that the function correctly restored the signal action, as
7027
saved in "actual_restored_sigchld_action", to the same values as
7028
the previously saved "expected_sigchld_action" */
7029
/* Check member sa_handler */
7030
g_assert_true(actual_restored_sigchld_action.sa_handler
7031
== expected_sigchld_action.sa_handler);
7032
/* Check member sa_mask */
7033
for(int signum = 1; signum < NSIG; signum++){
7034
const int expected_old_block_state
7035
= sigismember(&expected_sigchld_action.sa_mask, signum);
7036
g_assert_cmpint(expected_old_block_state, >=, 0);
7037
const int actual_restored_block_state
7038
= sigismember(&actual_restored_sigchld_action.sa_mask, signum);
7039
g_assert_cmpint(actual_restored_block_state, >=, 0);
7040
g_assert_cmpint(actual_restored_block_state,
7041
==, expected_old_block_state);
7042
}
7043
/* Check member sa_flags */
7044
g_assert_true((actual_restored_sigchld_action.sa_flags
7045
& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))
7046
== (expected_sigchld_action.sa_flags
7047
& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));
7048
}
7049
7050
static void test_block_sigchld(__attribute__((unused))
7051
test_fixture *fixture,
7052
__attribute__((unused))
7053
gconstpointer user_data){
7054
/* Save original signal mask */
7055
sigset_t expected_sigmask;
7056
g_assert_cmpint(pthread_sigmask(-1, NULL, &expected_sigmask),
7057
==, 0);
7058
7059
/* Make sure SIGCHLD is unblocked for this test */
7060
sigset_t sigchld_sigmask;
7061
g_assert_cmpint(sigemptyset(&sigchld_sigmask), ==, 0);
7062
g_assert_cmpint(sigaddset(&sigchld_sigmask, SIGCHLD), ==, 0);
7063
g_assert_cmpint(pthread_sigmask(SIG_UNBLOCK, &sigchld_sigmask,
7064
NULL), ==, 0);
7065
7066
/* Act; i.e. run the block_sigchld() function */
7067
sigset_t actual_old_sigmask;
7068
g_assert_true(block_sigchld(&actual_old_sigmask));
7069
7070
/* Check the actual_old_sigmask; it should be the same as the
7071
previously saved signal mask "expected_sigmask". */
7072
for(int signum = 1; signum < NSIG; signum++){
7073
const int expected_old_block_state
7074
= sigismember(&expected_sigmask, signum);
7075
g_assert_cmpint(expected_old_block_state, >=, 0);
7076
const int actual_old_block_state
7077
= sigismember(&actual_old_sigmask, signum);
7078
g_assert_cmpint(actual_old_block_state, >=, 0);
7079
g_assert_cmpint(actual_old_block_state,
7080
==, expected_old_block_state);
7081
}
7082
7083
/* Retrieve the newly set signal mask */
7084
sigset_t actual_sigmask;
7085
g_assert_cmpint(pthread_sigmask(-1, NULL, &actual_sigmask), ==, 0);
7086
7087
/* SIGCHLD should be blocked */
7088
g_assert_cmpint(sigismember(&actual_sigmask, SIGCHLD), ==, 1);
7089
7090
/* Restore signal mask */
7091
g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &expected_sigmask,
7092
NULL), ==, 0);
7093
}
7094
7095
static void test_restore_sigmask(__attribute__((unused))
7096
test_fixture *fixture,
7097
__attribute__((unused))
7098
gconstpointer user_data){
7099
/* Save original signal mask */
7100
sigset_t orig_sigmask;
7101
g_assert_cmpint(pthread_sigmask(-1, NULL, &orig_sigmask), ==, 0);
7102
7103
/* Make sure SIGCHLD is blocked for this test */
7104
sigset_t sigchld_sigmask;
7105
g_assert_cmpint(sigemptyset(&sigchld_sigmask), ==, 0);
7106
g_assert_cmpint(sigaddset(&sigchld_sigmask, SIGCHLD), ==, 0);
7107
g_assert_cmpint(pthread_sigmask(SIG_BLOCK, &sigchld_sigmask,
7108
NULL), ==, 0);
7109
7110
/* Act; i.e. run the restore_sigmask() function */
7111
g_assert_true(restore_sigmask(&orig_sigmask));
7112
7113
/* Retrieve the newly restored signal mask */
7114
sigset_t restored_sigmask;
7115
g_assert_cmpint(pthread_sigmask(-1, NULL, &restored_sigmask),
7116
==, 0);
7117
7118
/* Check the restored_sigmask; it should be the same as the
7119
previously saved signal mask "orig_sigmask". */
7120
for(int signum = 1; signum < NSIG; signum++){
7121
const int orig_block_state = sigismember(&orig_sigmask, signum);
7122
g_assert_cmpint(orig_block_state, >=, 0);
7123
const int restored_block_state = sigismember(&restored_sigmask,
7124
signum);
7125
g_assert_cmpint(restored_block_state, >=, 0);
7126
g_assert_cmpint(restored_block_state, ==, orig_block_state);
7127
}
7128
7129
/* Restore signal mask */
7130
g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &orig_sigmask,
7131
NULL), ==, 0);
7132
}
7133
7134
static void test_parse_arguments_noargs(__attribute__((unused))
7135
test_fixture *fixture,
7136
__attribute__((unused))
7137
gconstpointer user_data){
7138
char *argv[] = {
7139
strdup("prgname"),
7140
NULL };
7141
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7142
7143
char *agent_directory = NULL;
7144
char *helper_directory = NULL;
7145
uid_t user = 0;
7146
gid_t group = 0;
7147
char *mandos_argz = NULL;
7148
size_t mandos_argz_length = 0;
7149
7150
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7151
&helper_directory, &user, &group,
7152
&mandos_argz, &mandos_argz_length));
7153
g_assert_null(agent_directory);
7154
g_assert_null(helper_directory);
7155
g_assert_true(user == 0);
7156
g_assert_true(group == 0);
7157
g_assert_null(mandos_argz);
7158
g_assert_true(mandos_argz_length == 0);
7159
7160
for(char **arg = argv; *arg != NULL; arg++){
7161
free(*arg);
7162
}
7163
}
7164
7165
__attribute__((nonnull))
7166
static bool parse_arguments_devnull(int argc, char *argv[],
7167
const bool exit_failure,
7168
char **agent_directory,
7169
char **helper_directory,
7170
uid_t *const user,
7171
gid_t *const group,
7172
char **mandos_argz,
7173
size_t *mandos_argz_length){
7174
7175
FILE *real_stderr = stderr;
7176
FILE *devnull = fopen("/dev/null", "we");
7177
g_assert_nonnull(devnull);
7178
stderr = devnull;
7179
7180
const bool ret = parse_arguments(argc, argv, exit_failure,
7181
agent_directory,
7182
helper_directory, user, group,
7183
mandos_argz, mandos_argz_length);
7184
const error_t saved_errno = errno;
7185
7186
stderr = real_stderr;
7187
g_assert_cmpint(fclose(devnull), ==, 0);
7188
7189
errno = saved_errno;
7190
7191
return ret;
7192
}
7193
7194
static void test_parse_arguments_invalid(__attribute__((unused))
7195
test_fixture *fixture,
7196
__attribute__((unused))
7197
gconstpointer user_data){
7198
char *argv[] = {
7199
strdup("prgname"),
7200
strdup("--invalid"),
7201
NULL };
7202
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7203
7204
char *agent_directory = NULL;
7205
char *helper_directory = NULL;
7206
uid_t user = 0;
7207
gid_t group = 0;
7208
char *mandos_argz = NULL;
7209
size_t mandos_argz_length = 0;
7210
7211
g_assert_false(parse_arguments_devnull(argc, argv, false,
7212
&agent_directory,
7213
&helper_directory, &user,
7214
&group, &mandos_argz,
7215
&mandos_argz_length));
7216
7217
g_assert_true(errno == EINVAL);
7218
g_assert_null(agent_directory);
7219
g_assert_null(helper_directory);
7220
g_assert_null(mandos_argz);
7221
g_assert_true(mandos_argz_length == 0);
7222
7223
for(char **arg = argv; *arg != NULL; arg++){
7224
free(*arg);
7225
}
7226
}
7227
7228
static void test_parse_arguments_long_dir(__attribute__((unused))
7229
test_fixture *fixture,
7230
__attribute__((unused))
7231
gconstpointer user_data){
7232
char *argv[] = {
7233
strdup("prgname"),
7234
strdup("--agent-directory"),
7235
strdup("/tmp"),
7236
NULL };
7237
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7238
7239
__attribute__((cleanup(cleanup_string)))
7240
char *agent_directory = NULL;
7241
char *helper_directory = NULL;
7242
uid_t user = 0;
7243
gid_t group = 0;
7244
__attribute__((cleanup(cleanup_string)))
7245
char *mandos_argz = NULL;
7246
size_t mandos_argz_length = 0;
7247
7248
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7249
&helper_directory, &user, &group,
7250
&mandos_argz, &mandos_argz_length));
7251
7252
g_assert_cmpstr(agent_directory, ==, "/tmp");
7253
g_assert_null(helper_directory);
7254
g_assert_true(user == 0);
7255
g_assert_true(group == 0);
7256
g_assert_null(mandos_argz);
7257
g_assert_true(mandos_argz_length == 0);
7258
7259
for(char **arg = argv; *arg != NULL; arg++){
7260
free(*arg);
7261
}
7262
}
7263
7264
static void test_parse_arguments_short_dir(__attribute__((unused))
7265
test_fixture *fixture,
7266
__attribute__((unused))
7267
gconstpointer user_data){
7268
char *argv[] = {
7269
strdup("prgname"),
7270
strdup("-d"),
7271
strdup("/tmp"),
7272
NULL };
7273
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7274
7275
__attribute__((cleanup(cleanup_string)))
7276
char *agent_directory = NULL;
7277
char *helper_directory = NULL;
7278
uid_t user = 0;
7279
gid_t group = 0;
7280
__attribute__((cleanup(cleanup_string)))
7281
char *mandos_argz = NULL;
7282
size_t mandos_argz_length = 0;
7283
7284
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7285
&helper_directory, &user, &group,
7286
&mandos_argz, &mandos_argz_length));
7287
7288
g_assert_cmpstr(agent_directory, ==, "/tmp");
7289
g_assert_null(helper_directory);
7290
g_assert_true(user == 0);
7291
g_assert_true(group == 0);
7292
g_assert_null(mandos_argz);
7293
g_assert_true(mandos_argz_length == 0);
7294
7295
for(char **arg = argv; *arg != NULL; arg++){
7296
free(*arg);
7297
}
7298
}
7299
7300
static
7301
void test_parse_arguments_helper_directory(__attribute__((unused))
7302
test_fixture *fixture,
7303
__attribute__((unused))
7304
gconstpointer user_data){
7305
char *argv[] = {
7306
strdup("prgname"),
7307
strdup("--helper-directory"),
7308
strdup("/tmp"),
7309
NULL };
7310
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7311
7312
char *agent_directory = NULL;
7313
__attribute__((cleanup(cleanup_string)))
7314
char *helper_directory = NULL;
7315
uid_t user = 0;
7316
gid_t group = 0;
7317
__attribute__((cleanup(cleanup_string)))
7318
char *mandos_argz = NULL;
7319
size_t mandos_argz_length = 0;
7320
7321
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7322
&helper_directory, &user, &group,
7323
&mandos_argz, &mandos_argz_length));
7324
7325
g_assert_cmpstr(helper_directory, ==, "/tmp");
7326
g_assert_null(agent_directory);
7327
g_assert_true(user == 0);
7328
g_assert_true(group == 0);
7329
g_assert_null(mandos_argz);
7330
g_assert_true(mandos_argz_length == 0);
7331
7332
for(char **arg = argv; *arg != NULL; arg++){
7333
free(*arg);
7334
}
7335
}
7336
7337
static
7338
void test_parse_arguments_plugin_helper_dir(__attribute__((unused))
7339
test_fixture *fixture,
7340
__attribute__((unused))
7341
gconstpointer user_data){
7342
char *argv[] = {
7343
strdup("prgname"),
7344
strdup("--plugin-helper-dir"),
7345
strdup("/tmp"),
7346
NULL };
7347
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7348
7349
char *agent_directory = NULL;
7350
__attribute__((cleanup(cleanup_string)))
7351
char *helper_directory = NULL;
7352
uid_t user = 0;
7353
gid_t group = 0;
7354
__attribute__((cleanup(cleanup_string)))
7355
char *mandos_argz = NULL;
7356
size_t mandos_argz_length = 0;
7357
7358
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7359
&helper_directory, &user, &group,
7360
&mandos_argz, &mandos_argz_length));
7361
7362
g_assert_cmpstr(helper_directory, ==, "/tmp");
7363
g_assert_null(agent_directory);
7364
g_assert_true(user == 0);
7365
g_assert_true(group == 0);
7366
g_assert_null(mandos_argz);
7367
g_assert_true(mandos_argz_length == 0);
7368
7369
for(char **arg = argv; *arg != NULL; arg++){
7370
free(*arg);
7371
}
7372
}
7373
7374
static void test_parse_arguments_user(__attribute__((unused))
7375
test_fixture *fixture,
7376
__attribute__((unused))
7377
gconstpointer user_data){
7378
char *argv[] = {
7379
strdup("prgname"),
7380
strdup("--user"),
7381
strdup("1000"),
7382
NULL };
7383
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7384
7385
char *agent_directory = NULL;
7386
__attribute__((cleanup(cleanup_string)))
7387
char *helper_directory = NULL;
7388
uid_t user = 0;
7389
gid_t group = 0;
7390
__attribute__((cleanup(cleanup_string)))
7391
char *mandos_argz = NULL;
7392
size_t mandos_argz_length = 0;
7393
7394
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7395
&helper_directory, &user, &group,
7396
&mandos_argz, &mandos_argz_length));
7397
7398
g_assert_null(helper_directory);
7399
g_assert_null(agent_directory);
7400
g_assert_cmpuint((unsigned int)user, ==, 1000);
7401
g_assert_true(group == 0);
7402
g_assert_null(mandos_argz);
7403
g_assert_true(mandos_argz_length == 0);
7404
7405
for(char **arg = argv; *arg != NULL; arg++){
7406
free(*arg);
7407
}
7408
}
7409
7410
static void test_parse_arguments_user_invalid(__attribute__((unused))
7411
test_fixture *fixture,
7412
__attribute__((unused))
7413
gconstpointer
7414
user_data){
7415
char *argv[] = {
7416
strdup("prgname"),
7417
strdup("--user"),
7418
strdup("invalid"),
7419
NULL };
7420
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7421
7422
char *agent_directory = NULL;
7423
__attribute__((cleanup(cleanup_string)))
7424
char *helper_directory = NULL;
7425
uid_t user = 0;
7426
gid_t group = 0;
7427
__attribute__((cleanup(cleanup_string)))
7428
char *mandos_argz = NULL;
7429
size_t mandos_argz_length = 0;
7430
7431
g_assert_false(parse_arguments_devnull(argc, argv, false,
7432
&agent_directory,
7433
&helper_directory, &user,
7434
&group, &mandos_argz,
7435
&mandos_argz_length));
7436
7437
g_assert_null(helper_directory);
7438
g_assert_null(agent_directory);
7439
g_assert_cmpuint((unsigned int)user, ==, 0);
7440
g_assert_true(group == 0);
7441
g_assert_null(mandos_argz);
7442
g_assert_true(mandos_argz_length == 0);
7443
7444
for(char **arg = argv; *arg != NULL; arg++){
7445
free(*arg);
7446
}
7447
}
7448
7449
static
7450
void test_parse_arguments_user_zero_invalid(__attribute__((unused))
7451
test_fixture *fixture,
7452
__attribute__((unused))
7453
gconstpointer user_data){
7454
char *argv[] = {
7455
strdup("prgname"),
7456
strdup("--user"),
7457
strdup("0"),
7458
NULL };
7459
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7460
7461
char *agent_directory = NULL;
7462
__attribute__((cleanup(cleanup_string)))
7463
char *helper_directory = NULL;
7464
uid_t user = 0;
7465
gid_t group = 0;
7466
__attribute__((cleanup(cleanup_string)))
7467
char *mandos_argz = NULL;
7468
size_t mandos_argz_length = 0;
7469
7470
g_assert_false(parse_arguments_devnull(argc, argv, false,
7471
&agent_directory,
7472
&helper_directory, &user,
7473
&group, &mandos_argz,
7474
&mandos_argz_length));
7475
7476
g_assert_null(helper_directory);
7477
g_assert_null(agent_directory);
7478
g_assert_cmpuint((unsigned int)user, ==, 0);
7479
g_assert_true(group == 0);
7480
g_assert_null(mandos_argz);
7481
g_assert_true(mandos_argz_length == 0);
7482
7483
for(char **arg = argv; *arg != NULL; arg++){
7484
free(*arg);
7485
}
7486
}
7487
7488
static void test_parse_arguments_group(__attribute__((unused))
7489
test_fixture *fixture,
7490
__attribute__((unused))
7491
gconstpointer user_data){
7492
char *argv[] = {
7493
strdup("prgname"),
7494
strdup("--group"),
7495
strdup("1000"),
7496
NULL };
7497
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7498
7499
char *agent_directory = NULL;
7500
__attribute__((cleanup(cleanup_string)))
7501
char *helper_directory = NULL;
7502
uid_t user = 0;
7503
gid_t group = 0;
7504
__attribute__((cleanup(cleanup_string)))
7505
char *mandos_argz = NULL;
7506
size_t mandos_argz_length = 0;
7507
7508
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7509
&helper_directory, &user, &group,
7510
&mandos_argz, &mandos_argz_length));
7511
7512
g_assert_null(helper_directory);
7513
g_assert_null(agent_directory);
7514
g_assert_true(user == 0);
7515
g_assert_cmpuint((unsigned int)group, ==, 1000);
7516
g_assert_null(mandos_argz);
7517
g_assert_true(mandos_argz_length == 0);
7518
7519
for(char **arg = argv; *arg != NULL; arg++){
7520
free(*arg);
7521
}
7522
}
7523
7524
static void test_parse_arguments_group_invalid(__attribute__((unused))
7525
test_fixture *fixture,
7526
__attribute__((unused))
7527
gconstpointer
7528
user_data){
7529
char *argv[] = {
7530
strdup("prgname"),
7531
strdup("--group"),
7532
strdup("invalid"),
7533
NULL };
7534
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7535
7536
char *agent_directory = NULL;
7537
__attribute__((cleanup(cleanup_string)))
7538
char *helper_directory = NULL;
7539
uid_t user = 0;
7540
gid_t group = 0;
7541
__attribute__((cleanup(cleanup_string)))
7542
char *mandos_argz = NULL;
7543
size_t mandos_argz_length = 0;
7544
7545
g_assert_false(parse_arguments_devnull(argc, argv, false,
7546
&agent_directory,
7547
&helper_directory, &user,
7548
&group, &mandos_argz,
7549
&mandos_argz_length));
7550
7551
g_assert_null(helper_directory);
7552
g_assert_null(agent_directory);
7553
g_assert_true(user == 0);
7554
g_assert_true(group == 0);
7555
g_assert_null(mandos_argz);
7556
g_assert_true(mandos_argz_length == 0);
7557
7558
for(char **arg = argv; *arg != NULL; arg++){
7559
free(*arg);
7560
}
7561
}
7562
7563
static
7564
void test_parse_arguments_group_zero_invalid(__attribute__((unused))
7565
test_fixture *fixture,
7566
__attribute__((unused))
7567
gconstpointer user_data){
7568
char *argv[] = {
7569
strdup("prgname"),
7570
strdup("--group"),
7571
strdup("0"),
7572
NULL };
7573
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7574
7575
char *agent_directory = NULL;
7576
__attribute__((cleanup(cleanup_string)))
7577
char *helper_directory = NULL;
7578
uid_t user = 0;
7579
gid_t group = 0;
7580
__attribute__((cleanup(cleanup_string)))
7581
char *mandos_argz = NULL;
7582
size_t mandos_argz_length = 0;
7583
7584
g_assert_false(parse_arguments_devnull(argc, argv, false,
7585
&agent_directory,
7586
&helper_directory, &user,
7587
&group, &mandos_argz,
7588
&mandos_argz_length));
7589
7590
g_assert_null(helper_directory);
7591
g_assert_null(agent_directory);
7592
g_assert_cmpuint((unsigned int)group, ==, 0);
7593
g_assert_true(group == 0);
7594
g_assert_null(mandos_argz);
7595
g_assert_true(mandos_argz_length == 0);
7596
7597
for(char **arg = argv; *arg != NULL; arg++){
7598
free(*arg);
7599
}
7600
}
7601
7602
static void test_parse_arguments_mandos_noargs(__attribute__((unused))
7603
test_fixture *fixture,
7604
__attribute__((unused))
7605
gconstpointer
7606
user_data){
7607
char *argv[] = {
7608
strdup("prgname"),
7609
strdup("mandos-client"),
7610
NULL };
7611
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7612
7613
__attribute__((cleanup(cleanup_string)))
7614
char *agent_directory = NULL;
7615
__attribute__((cleanup(cleanup_string)))
7616
char *helper_directory = NULL;
7617
uid_t user = 0;
7618
gid_t group = 0;
7619
__attribute__((cleanup(cleanup_string)))
7620
char *mandos_argz = NULL;
7621
size_t mandos_argz_length = 0;
7622
7623
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7624
&helper_directory, &user, &group,
7625
&mandos_argz, &mandos_argz_length));
7626
7627
g_assert_null(agent_directory);
7628
g_assert_null(helper_directory);
7629
g_assert_true(user == 0);
7630
g_assert_true(group == 0);
7631
g_assert_cmpstr(mandos_argz, ==, "mandos-client");
7632
g_assert_cmpuint((unsigned int)argz_count(mandos_argz,
7633
mandos_argz_length),
7634
==, 1);
7635
7636
for(char **arg = argv; *arg != NULL; arg++){
7637
free(*arg);
7638
}
7639
}
7640
7641
static void test_parse_arguments_mandos_args(__attribute__((unused))
7642
test_fixture *fixture,
7643
__attribute__((unused))
7644
gconstpointer user_data){
7645
char *argv[] = {
7646
strdup("prgname"),
7647
strdup("mandos-client"),
7648
strdup("one"),
7649
strdup("two"),
7650
strdup("three"),
7651
NULL };
7652
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7653
7654
__attribute__((cleanup(cleanup_string)))
7655
char *agent_directory = NULL;
7656
__attribute__((cleanup(cleanup_string)))
7657
char *helper_directory = NULL;
7658
uid_t user = 0;
7659
gid_t group = 0;
7660
__attribute__((cleanup(cleanup_string)))
7661
char *mandos_argz = NULL;
7662
size_t mandos_argz_length = 0;
7663
7664
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7665
&helper_directory, &user, &group,
7666
&mandos_argz, &mandos_argz_length));
7667
7668
g_assert_null(agent_directory);
7669
g_assert_null(helper_directory);
7670
g_assert_true(user == 0);
7671
g_assert_true(group == 0);
7672
char *marg = mandos_argz;
7673
g_assert_cmpstr(marg, ==, "mandos-client");
7674
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7675
g_assert_cmpstr(marg, ==, "one");
7676
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7677
g_assert_cmpstr(marg, ==, "two");
7678
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7679
g_assert_cmpstr(marg, ==, "three");
7680
g_assert_cmpuint((unsigned int)argz_count(mandos_argz,
7681
mandos_argz_length),
7682
==, 4);
7683
7684
for(char **arg = argv; *arg != NULL; arg++){
7685
free(*arg);
7686
}
7687
}
7688
7689
static void test_parse_arguments_all_args(__attribute__((unused))
7690
test_fixture *fixture,
7691
__attribute__((unused))
7692
gconstpointer user_data){
7693
char *argv[] = {
7694
strdup("prgname"),
7695
strdup("--agent-directory"),
7696
strdup("/tmp"),
7697
strdup("--helper-directory"),
7698
strdup("/var/tmp"),
7699
strdup("--user"),
7700
strdup("1"),
7701
strdup("--group"),
7702
strdup("2"),
7703
strdup("mandos-client"),
7704
strdup("one"),
7705
strdup("two"),
7706
strdup("three"),
7707
NULL };
7708
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7709
7710
__attribute__((cleanup(cleanup_string)))
7711
char *agent_directory = NULL;
7712
__attribute__((cleanup(cleanup_string)))
7713
char *helper_directory = NULL;
7714
uid_t user = 0;
7715
gid_t group = 0;
7716
__attribute__((cleanup(cleanup_string)))
7717
char *mandos_argz = NULL;
7718
size_t mandos_argz_length = 0;
7719
7720
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7721
&helper_directory, &user, &group,
7722
&mandos_argz, &mandos_argz_length));
7723
7724
g_assert_cmpstr(agent_directory, ==, "/tmp");
7725
g_assert_cmpstr(helper_directory, ==, "/var/tmp");
7726
g_assert_true(user == 1);
7727
g_assert_true(group == 2);
7728
char *marg = mandos_argz;
7729
g_assert_cmpstr(marg, ==, "mandos-client");
7730
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7731
g_assert_cmpstr(marg, ==, "one");
7732
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7733
g_assert_cmpstr(marg, ==, "two");
7734
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7735
g_assert_cmpstr(marg, ==, "three");
7736
g_assert_cmpuint((unsigned int)argz_count(mandos_argz,
7737
mandos_argz_length),
7738
==, 4);
7739
7740
for(char **arg = argv; *arg != NULL; arg++){
7741
free(*arg);
7742
}
7743
}
7744
7745
static void test_parse_arguments_mixed(__attribute__((unused))
7746
test_fixture *fixture,
7747
__attribute__((unused))
7748
gconstpointer user_data){
7749
char *argv[] = {
7750
strdup("prgname"),
7751
strdup("mandos-client"),
7752
strdup("--user"),
7753
strdup("1"),
7754
strdup("one"),
7755
strdup("--agent-directory"),
7756
strdup("/tmp"),
7757
strdup("two"),
7758
strdup("three"),
7759
strdup("--helper-directory=/var/tmp"),
7760
NULL };
7761
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7762
7763
__attribute__((cleanup(cleanup_string)))
7764
char *agent_directory = NULL;
7765
__attribute__((cleanup(cleanup_string)))
7766
char *helper_directory = NULL;
7767
uid_t user = 0;
7768
gid_t group = 0;
7769
__attribute__((cleanup(cleanup_string)))
7770
char *mandos_argz = NULL;
7771
size_t mandos_argz_length = 0;
7772
7773
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7774
&helper_directory, &user, &group,
7775
&mandos_argz, &mandos_argz_length));
7776
7777
g_assert_cmpstr(agent_directory, ==, "/tmp");
7778
g_assert_cmpstr(helper_directory, ==, "/var/tmp");
7779
g_assert_true(user == 1);
7780
g_assert_true(group == 0);
7781
char *marg = mandos_argz;
7782
g_assert_cmpstr(marg, ==, "mandos-client");
7783
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7784
g_assert_cmpstr(marg, ==, "one");
7785
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7786
g_assert_cmpstr(marg, ==, "two");
7787
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7788
g_assert_cmpstr(marg, ==, "three");
7789
g_assert_cmpuint((unsigned int)argz_count(mandos_argz,
7790
mandos_argz_length),
7791
==, 4);
7792
7793
for(char **arg = argv; *arg != NULL; arg++){
7794
free(*arg);
7795
}
7796
}
7797
7798
/* End of tests section */
7799
7800
/* Test boilerplate section; New tests should be added to the test
7801
suite definition here, in the "run_tests" function.
7802
7803
Finally, this section also contains the should_only_run_tests()
7804
function used by main() for deciding if tests should be run or to
7805
start normally. */
7806
7807
__attribute__((cold))
7808
static bool run_tests(int argc, char *argv[]){
7809
g_test_init(&argc, &argv, NULL);
7810
7811
/* A macro to add a test with no setup or teardown functions */
7812
#define test_add(testpath, testfunc) \
7813
do { \
7814
g_test_add((testpath), test_fixture, NULL, NULL, \
7815
(testfunc), NULL); \
7816
} while(false)
7817
7818
/* Test the signal-related functions first, since some other tests
7819
depend on these functions in their setups and teardowns */
7820
test_add("/signal-handling/setup", test_setup_signal_handler);
7821
test_add("/signal-handling/restore", test_restore_signal_handler);
7822
test_add("/signal-handling/block", test_block_sigchld);
7823
test_add("/signal-handling/restore-sigmask", test_restore_sigmask);
7824
7825
/* Regular non-signal-related tests; these use no setups or
7826
teardowns */
7827
test_add("/parse_arguments/noargs", test_parse_arguments_noargs);
7828
test_add("/parse_arguments/invalid", test_parse_arguments_invalid);
7829
test_add("/parse_arguments/long-dir",
7830
test_parse_arguments_long_dir);
7831
test_add("/parse_arguments/short-dir",
7832
test_parse_arguments_short_dir);
7833
test_add("/parse_arguments/helper-directory",
7834
test_parse_arguments_helper_directory);
7835
test_add("/parse_arguments/plugin-helper-dir",
7836
test_parse_arguments_plugin_helper_dir);
7837
test_add("/parse_arguments/user", test_parse_arguments_user);
7838
test_add("/parse_arguments/user-invalid",
7839
test_parse_arguments_user_invalid);
7840
test_add("/parse_arguments/user-zero-invalid",
7841
test_parse_arguments_user_zero_invalid);
7842
test_add("/parse_arguments/group", test_parse_arguments_group);
7843
test_add("/parse_arguments/group-invalid",
7844
test_parse_arguments_group_invalid);
7845
test_add("/parse_arguments/group-zero-invalid",
7846
test_parse_arguments_group_zero_invalid);
7847
test_add("/parse_arguments/mandos-noargs",
7848
test_parse_arguments_mandos_noargs);
7849
test_add("/parse_arguments/mandos-args",
7850
test_parse_arguments_mandos_args);
7851
test_add("/parse_arguments/all-args",
7852
test_parse_arguments_all_args);
7853
test_add("/parse_arguments/mixed", test_parse_arguments_mixed);
7854
test_add("/queue/create", test_create_queue);
7855
test_add("/queue/add", test_add_to_queue);
7856
test_add("/queue/has_question/empty",
7857
test_queue_has_question_empty);
7858
test_add("/queue/has_question/false",
7859
test_queue_has_question_false);
7860
test_add("/queue/has_question/true", test_queue_has_question_true);
7861
test_add("/queue/has_question/false2",
7862
test_queue_has_question_false2);
7863
test_add("/queue/has_question/true2",
7864
test_queue_has_question_true2);
7865
test_add("/buffer/cleanup", test_cleanup_buffer);
7866
test_add("/string_set/net-set-contains-nothing",
7867
test_string_set_new_set_contains_nothing);
7868
test_add("/string_set/with-added-string-contains-it",
7869
test_string_set_with_added_string_contains_it);
7870
test_add("/string_set/cleared-does-not-contain-string",
7871
test_string_set_cleared_does_not_contain_str);
7872
test_add("/string_set/swap/one-with-empty",
7873
test_string_set_swap_one_with_empty);
7874
test_add("/string_set/swap/empty-with-one",
7875
test_string_set_swap_empty_with_one);
7876
test_add("/string_set/swap/one-with-one",
7877
test_string_set_swap_one_with_one);
7878
7879
/* A macro to add a test using the setup and teardown functions */
7880
#define test_add_st(path, func) \
7881
do { \
7882
g_test_add((path), test_fixture, NULL, test_setup, (func), \
7883
test_teardown); \
7884
} while(false)
7885
7886
/* Signal-related tests; these use setups and teardowns which
7887
establish, during each test run, a signal handler for, and a
7888
signal mask blocking, the SIGCHLD signal, just like main() */
7889
test_add_st("/wait_for_event/timeout", test_wait_for_event_timeout);
7890
test_add_st("/wait_for_event/event", test_wait_for_event_event);
7891
test_add_st("/wait_for_event/sigchld", test_wait_for_event_sigchld);
7892
test_add_st("/run_queue/zeroes-next-run",
7893
test_run_queue_zeroes_next_run);
7894
test_add_st("/run_queue/clears-cancelled_filenames",
7895
test_run_queue_clears_cancelled_filenames);
7896
test_add_st("/run_queue/skips-cancelled-filenames",
7897
test_run_queue_skips_cancelled_filenames);
7898
test_add_st("/run_queue/one-task", test_run_queue_one_task);
7899
test_add_st("/run_queue/two-tasks", test_run_queue_two_tasks);
7900
test_add_st("/run_queue/two-tasks/quit",
7901
test_run_queue_two_tasks_quit);
7902
test_add_st("/run_queue/two-tasks-cleanup",
7903
test_run_queue_two_tasks_cleanup);
7904
test_add_st("/task-creators/start_mandos_client",
7905
test_start_mandos_client);
7906
test_add_st("/task-creators/start_mandos_client/execv",
7907
test_start_mandos_client_execv);
7908
test_add_st("/task-creators/start_mandos_client/suid/euid",
7909
test_start_mandos_client_suid_euid);
7910
test_add_st("/task-creators/start_mandos_client/suid/egid",
7911
test_start_mandos_client_suid_egid);
7912
test_add_st("/task-creators/start_mandos_client/suid/ruid",
7913
test_start_mandos_client_suid_ruid);
7914
test_add_st("/task-creators/start_mandos_client/suid/rgid",
7915
test_start_mandos_client_suid_rgid);
7916
test_add_st("/task-creators/start_mandos_client/read",
7917
test_start_mandos_client_read);
7918
test_add_st("/task-creators/start_mandos_client/helper-directory",
7919
test_start_mandos_client_helper_directory);
7920
test_add_st("/task-creators/start_mandos_client/sigmask",
7921
test_start_mandos_client_sigmask);
7922
test_add_st("/task/wait_for_mandos_client_exit/badpid",
7923
test_wait_for_mandos_client_exit_badpid);
7924
test_add_st("/task/wait_for_mandos_client_exit/noexit",
7925
test_wait_for_mandos_client_exit_noexit);
7926
test_add_st("/task/wait_for_mandos_client_exit/success",
7927
test_wait_for_mandos_client_exit_success);
7928
test_add_st("/task/wait_for_mandos_client_exit/failure",
7929
test_wait_for_mandos_client_exit_failure);
7930
test_add_st("/task/wait_for_mandos_client_exit/killed",
7931
test_wait_for_mandos_client_exit_killed);
7932
test_add_st("/task/read_mandos_client_output/readerror",
7933
test_read_mandos_client_output_readerror);
7934
test_add_st("/task/read_mandos_client_output/nodata",
7935
test_read_mandos_client_output_nodata);
7936
test_add_st("/task/read_mandos_client_output/eof",
7937
test_read_mandos_client_output_eof);
7938
test_add_st("/task/read_mandos_client_output/once",
7939
test_read_mandos_client_output_once);
7940
test_add_st("/task/read_mandos_client_output/malloc",
7941
test_read_mandos_client_output_malloc);
7942
test_add_st("/task/read_mandos_client_output/append",
7943
test_read_mandos_client_output_append);
7944
test_add_st("/task-creators/add_inotify_dir_watch",
7945
test_add_inotify_dir_watch);
7946
test_add_st("/task-creators/add_inotify_dir_watch/fail",
7947
test_add_inotify_dir_watch_fail);
7948
test_add_st("/task-creators/add_inotify_dir_watch/not-a-directory",
7949
test_add_inotify_dir_watch_nondir);
7950
test_add_st("/task-creators/add_inotify_dir_watch/EAGAIN",
7951
test_add_inotify_dir_watch_EAGAIN);
7952
test_add_st("/task-creators/add_inotify_dir_watch/IN_CLOSE_WRITE",
7953
test_add_inotify_dir_watch_IN_CLOSE_WRITE);
7954
test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_TO",
7955
test_add_inotify_dir_watch_IN_MOVED_TO);
7956
test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_FROM",
7957
test_add_inotify_dir_watch_IN_MOVED_FROM);
7958
test_add_st("/task-creators/add_inotify_dir_watch/IN_EXCL_UNLINK",
7959
test_add_inotify_dir_watch_IN_EXCL_UNLINK);
7960
test_add_st("/task-creators/add_inotify_dir_watch/IN_DELETE",
7961
test_add_inotify_dir_watch_IN_DELETE);
7962
test_add_st("/task/read_inotify_event/readerror",
7963
test_read_inotify_event_readerror);
7964
test_add_st("/task/read_inotify_event/bad-epoll",
7965
test_read_inotify_event_bad_epoll);
7966
test_add_st("/task/read_inotify_event/nodata",
7967
test_read_inotify_event_nodata);
7968
test_add_st("/task/read_inotify_event/eof",
7969
test_read_inotify_event_eof);
7970
test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE",
7971
test_read_inotify_event_IN_CLOSE_WRITE);
7972
test_add_st("/task/read_inotify_event/IN_MOVED_TO",
7973
test_read_inotify_event_IN_MOVED_TO);
7974
test_add_st("/task/read_inotify_event/IN_MOVED_FROM",
7975
test_read_inotify_event_IN_MOVED_FROM);
7976
test_add_st("/task/read_inotify_event/IN_DELETE",
7977
test_read_inotify_event_IN_DELETE);
7978
test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE/badname",
7979
test_read_inotify_event_IN_CLOSE_WRITE_badname);
7980
test_add_st("/task/read_inotify_event/IN_MOVED_TO/badname",
7981
test_read_inotify_event_IN_MOVED_TO_badname);
7982
test_add_st("/task/read_inotify_event/IN_MOVED_FROM/badname",
7983
test_read_inotify_event_IN_MOVED_FROM_badname);
7984
test_add_st("/task/read_inotify_event/IN_DELETE/badname",
7985
test_read_inotify_event_IN_DELETE_badname);
7986
test_add_st("/task/open_and_parse_question/ENOENT",
7987
test_open_and_parse_question_ENOENT);
7988
test_add_st("/task/open_and_parse_question/EIO",
7989
test_open_and_parse_question_EIO);
7990
test_add_st("/task/open_and_parse_question/parse-error",
7991
test_open_and_parse_question_parse_error);
7992
test_add_st("/task/open_and_parse_question/nosocket",
7993
test_open_and_parse_question_nosocket);
7994
test_add_st("/task/open_and_parse_question/badsocket",
7995
test_open_and_parse_question_badsocket);
7996
test_add_st("/task/open_and_parse_question/nopid",
7997
test_open_and_parse_question_nopid);
7998
test_add_st("/task/open_and_parse_question/badpid",
7999
test_open_and_parse_question_badpid);
8000
test_add_st("/task/open_and_parse_question/noexist_pid",
8001
test_open_and_parse_question_noexist_pid);
8002
test_add_st("/task/open_and_parse_question/no-notafter",
8003
test_open_and_parse_question_no_notafter);
8004
test_add_st("/task/open_and_parse_question/bad-notafter",
8005
test_open_and_parse_question_bad_notafter);
8006
test_add_st("/task/open_and_parse_question/notafter-0",
8007
test_open_and_parse_question_notafter_0);
8008
test_add_st("/task/open_and_parse_question/notafter-1",
8009
test_open_and_parse_question_notafter_1);
8010
test_add_st("/task/open_and_parse_question/notafter-1-1",
8011
test_open_and_parse_question_notafter_1_1);
8012
test_add_st("/task/open_and_parse_question/notafter-1-2",
8013
test_open_and_parse_question_notafter_1_2);
8014
test_add_st("/task/open_and_parse_question/equal-notafter",
8015
test_open_and_parse_question_equal_notafter);
8016
test_add_st("/task/open_and_parse_question/late-notafter",
8017
test_open_and_parse_question_late_notafter);
8018
test_add_st("/task/cancel_old_question/0-1-2",
8019
test_cancel_old_question_0_1_2);
8020
test_add_st("/task/cancel_old_question/0-2-1",
8021
test_cancel_old_question_0_2_1);
8022
test_add_st("/task/cancel_old_question/1-2-3",
8023
test_cancel_old_question_1_2_3);
8024
test_add_st("/task/cancel_old_question/1-3-2",
8025
test_cancel_old_question_1_3_2);
8026
test_add_st("/task/cancel_old_question/2-1-3",
8027
test_cancel_old_question_2_1_3);
8028
test_add_st("/task/cancel_old_question/2-3-1",
8029
test_cancel_old_question_2_3_1);
8030
test_add_st("/task/cancel_old_question/3-1-2",
8031
test_cancel_old_question_3_1_2);
8032
test_add_st("/task/cancel_old_question/3-2-1",
8033
test_cancel_old_question_3_2_1);
8034
test_add_st("/task/connect_question_socket/name-too-long",
8035
test_connect_question_socket_name_too_long);
8036
test_add_st("/task/connect_question_socket/connect-fail",
8037
test_connect_question_socket_connect_fail);
8038
test_add_st("/task/connect_question_socket/bad-epoll",
8039
test_connect_question_socket_bad_epoll);
8040
test_add_st("/task/connect_question_socket/usable",
8041
test_connect_question_socket_usable);
8042
test_add_st("/task/send_password_to_socket/client-not-exited",
8043
test_send_password_to_socket_client_not_exited);
8044
test_add_st("/task/send_password_to_socket/password-not-read",
8045
test_send_password_to_socket_password_not_read);
8046
test_add_st("/task/send_password_to_socket/EMSGSIZE",
8047
test_send_password_to_socket_EMSGSIZE);
8048
test_add_st("/task/send_password_to_socket/retry",
8049
test_send_password_to_socket_retry);
8050
test_add_st("/task/send_password_to_socket/bad-epoll",
8051
test_send_password_to_socket_bad_epoll);
8052
test_add_st("/task/send_password_to_socket/null-password",
8053
test_send_password_to_socket_null_password);
8054
test_add_st("/task/send_password_to_socket/empty-password",
8055
test_send_password_to_socket_empty_password);
8056
test_add_st("/task/send_password_to_socket/empty-str-password",
8057
test_send_password_to_socket_empty_str_pass);
8058
test_add_st("/task/send_password_to_socket/text-password",
8059
test_send_password_to_socket_text_password);
8060
test_add_st("/task/send_password_to_socket/binary-password",
8061
test_send_password_to_socket_binary_password);
8062
test_add_st("/task/send_password_to_socket/nuls-in-password",
8063
test_send_password_to_socket_nuls_in_password);
8064
test_add_st("/task-creators/add_existing_questions/ENOENT",
8065
test_add_existing_questions_ENOENT);
8066
test_add_st("/task-creators/add_existing_questions/no-questions",
8067
test_add_existing_questions_no_questions);
8068
test_add_st("/task-creators/add_existing_questions/one-question",
8069
test_add_existing_questions_one_question);
8070
test_add_st("/task-creators/add_existing_questions/two-questions",
8071
test_add_existing_questions_two_questions);
8072
test_add_st("/task-creators/add_existing_questions/non-questions",
8073
test_add_existing_questions_non_questions);
8074
test_add_st("/task-creators/add_existing_questions/both-types",
8075
test_add_existing_questions_both_types);
8076
8077
return g_test_run() == 0;
8078
}
8079
8080
static bool should_only_run_tests(int *argc_p, char **argv_p[]){
8081
GOptionContext *context = g_option_context_new("");
8082
8083
g_option_context_set_help_enabled(context, FALSE);
8084
g_option_context_set_ignore_unknown_options(context, TRUE);
8085
8086
gboolean run_tests = FALSE;
8087
GOptionEntry entries[] = {
8088
{ "test", 0, 0, G_OPTION_ARG_NONE,
8089
&run_tests, "Run tests", NULL },
8090
{ NULL }
8091
};
8092
g_option_context_add_main_entries(context, entries, NULL);
8093
8094
GError *error = NULL;
8095
8096
if(g_option_context_parse(context, argc_p, argv_p, &error) != TRUE){
8097
g_option_context_free(context);
8098
g_error("Failed to parse options: %s", error->message);
8099
}
8100
8101
g_option_context_free(context);
8102
return run_tests != FALSE;
8103
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0