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- Committer: Teddy Hogeborn
- Date: 2023-02-11 06:58:15 UTC
- Revision ID: teddy@recompile.se-20230211065815-jtffi61tbdrgr875
Suppress warnings
Suppress warnings about mlock()ing uninitialized memory and reading an
ievent struct.
* dracut-module/password-agent.c (send_password_to_socket): Suppress
"-Wmaybe-uninitialized" when mlock()ing password send buffer.
(test_read_inotify_event_IN_DELETE_badname): When reading from
a struct ievent, suppress "-Wstringop-overread".
Suppress warnings about mlock()ing uninitialized memory and reading an
ievent struct.
* dracut-module/password-agent.c (send_password_to_socket): Suppress
"-Wmaybe-uninitialized" when mlock()ing password send buffer.
(test_read_inotify_event_IN_DELETE_badname): When reading from
a struct ievent, suppress "-Wstringop-overread".
- files added:
- bugs.xml
- debian/tests
- dracut-module
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
dracut-module/password-agent.c
1
/* -*- coding: utf-8; lexical-binding: t -*- */
2
/*
3
* Mandos password agent - Simple password agent to run Mandos client
4
*
5
* Copyright © 2019-2022 Teddy Hogeborn
6
* Copyright © 2019-2022 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 /* pipe2(), O_CLOEXEC, setresgid(),
27
setresuid(), asprintf(), getline(),
28
basename() */
29
#include <inttypes.h> /* uintmax_t, strtoumax(), PRIuMAX,
30
PRIdMAX, intmax_t, uint32_t,
31
SCNx32, SCNuMAX, SCNxMAX */
32
#include <stddef.h> /* size_t, NULL */
33
#include <sys/types.h> /* pid_t, uid_t, gid_t, getuid(),
34
getpid() */
35
#include <stdbool.h> /* bool, true, false */
36
#include <signal.h> /* struct sigaction, sigset_t,
37
sigemptyset(), sigaddset(),
38
SIGCHLD, pthread_sigmask(),
39
SIG_BLOCK, SIG_SETMASK, SA_RESTART,
40
SA_NOCLDSTOP, sigfillset(), kill(),
41
SIGTERM, sigdelset(), SIGKILL,
42
NSIG, sigismember(), SA_ONSTACK,
43
SIG_DFL, SIG_IGN, SIGINT, SIGQUIT,
44
SIGHUP, SIGSTOP, SIG_UNBLOCK */
45
#include <unistd.h> /* uid_t, gid_t, close(), pipe2(),
46
fork(), _exit(), dup2(),
47
STDOUT_FILENO, setresgid(),
48
setresuid(), execv(), ssize_t,
49
read(), dup3(), getuid(), dup(),
50
STDERR_FILENO, pause(), write(),
51
rmdir(), unlink(), getpid() */
52
#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE,
53
malloc(), free(), realloc(),
54
setenv(), calloc(), mkdtemp(),
55
mkostemp() */
56
#include <iso646.h> /* not, or, and, xor */
57
#include <error.h> /* error() */
58
#include <sysexits.h> /* EX_USAGE, EX_OSERR, EX_OSFILE */
59
#include <errno.h> /* errno, error_t, EACCES,
60
ENAMETOOLONG, ENOENT, ENOTDIR,
61
ENOMEM, EEXIST, ECHILD, EPERM,
62
EAGAIN, EINTR, ENOBUFS, EADDRINUSE,
63
ECONNREFUSED, ECONNRESET,
64
ETOOMANYREFS, EMSGSIZE, EBADF,
65
EINVAL */
66
#include <string.h> /* strdup(), memcpy(),
67
explicit_bzero(), memset(),
68
strcmp(), strlen(), strncpy(),
69
memcmp(), basename(), strerror() */
70
#include <argz.h> /* argz_create(), argz_count(),
71
argz_extract(), argz_next(),
72
argz_add() */
73
#include <sys/epoll.h> /* epoll_create1(), EPOLL_CLOEXEC,
74
epoll_ctl(), EPOLL_CTL_ADD,
75
struct epoll_event, EPOLLIN,
76
EPOLLRDHUP, EPOLLOUT,
77
epoll_pwait() */
78
#include <time.h> /* struct timespec, clock_gettime(),
79
CLOCK_MONOTONIC */
80
#include <argp.h> /* struct argp_option, OPTION_HIDDEN,
81
OPTION_ALIAS, struct argp_state,
82
ARGP_ERR_UNKNOWN, ARGP_KEY_ARGS,
83
struct argp, argp_parse(),
84
ARGP_NO_EXIT */
85
#include <stdint.h> /* SIZE_MAX, uint32_t */
86
#include <sys/mman.h> /* munlock(), mlock() */
87
#include <fcntl.h> /* O_CLOEXEC, O_NONBLOCK, fcntl(),
88
F_GETFD, F_GETFL, FD_CLOEXEC,
89
open(), O_WRONLY, O_NOCTTY,
90
O_RDONLY, O_NOFOLLOW */
91
#include <sys/wait.h> /* waitpid(), WNOHANG, WIFEXITED(),
92
WEXITSTATUS() */
93
#include <limits.h> /* PIPE_BUF, NAME_MAX, INT_MAX */
94
#include <sys/inotify.h> /* inotify_init1(), IN_NONBLOCK,
95
IN_CLOEXEC, inotify_add_watch(),
96
IN_CLOSE_WRITE, IN_MOVED_TO,
97
IN_MOVED_FROM, IN_DELETE,
98
IN_EXCL_UNLINK, IN_ONLYDIR,
99
struct inotify_event */
100
#include <fnmatch.h> /* fnmatch(), FNM_FILE_NAME */
101
#include <stdio.h> /* asprintf(), FILE, stderr, fopen(),
102
fclose(), getline(), sscanf(),
103
feof(), ferror(), rename(),
104
fdopen(), fprintf(), fscanf() */
105
#include <glib.h> /* GKeyFile, g_key_file_free(), g_key_file_new(),
106
GError, g_key_file_load_from_file(),
107
G_KEY_FILE_NONE, TRUE, G_FILE_ERROR_NOENT,
108
g_key_file_get_string(), guint64,
109
g_key_file_get_uint64(),
110
G_KEY_FILE_ERROR_KEY_NOT_FOUND, gconstpointer,
111
g_assert_true(), g_assert_nonnull(),
112
g_assert_null(), g_assert_false(),
113
g_assert_cmpint(), g_assert_cmpuint(),
114
g_test_skip(), g_assert_cmpstr(),
115
g_test_message(), g_test_init(), g_test_add(),
116
g_test_run(), GOptionContext,
117
g_option_context_new(),
118
g_option_context_set_help_enabled(), FALSE,
119
g_option_context_set_ignore_unknown_options(),
120
gboolean, GOptionEntry, G_OPTION_ARG_NONE,
121
g_option_context_add_main_entries(),
122
g_option_context_parse(),
123
g_option_context_free(), g_error() */
124
#include <sys/un.h> /* struct sockaddr_un, SUN_LEN */
125
#include <sys/socket.h> /* AF_LOCAL, socket(), PF_LOCAL,
126
SOCK_DGRAM, SOCK_NONBLOCK,
127
SOCK_CLOEXEC, connect(),
128
struct sockaddr, socklen_t,
129
shutdown(), SHUT_RD, send(),
130
MSG_NOSIGNAL, bind(), recv(),
131
socketpair() */
132
#include <glob.h> /* globfree(), glob_t, glob(),
133
GLOB_ERR, GLOB_NOSORT, GLOB_MARK,
134
GLOB_ABORTED, GLOB_NOMATCH,
135
GLOB_NOSPACE */
136
137
/* End of includes */
138
139
/* Start of declarations of private types and functions */
140
141
/* microseconds of CLOCK_MONOTONIC absolute time; 0 means unset */
142
typedef uintmax_t mono_microsecs;
143
144
/* "task_queue" - A queue of tasks to be run */
145
typedef struct {
146
struct task_struct *tasks; /* Tasks in this queue */
147
size_t length; /* Number of tasks */
148
/* Memory allocated for "tasks", in bytes */
149
size_t allocated;
150
/* Time when this queue should be run, at the latest */
151
mono_microsecs next_run;
152
} __attribute__((designated_init)) task_queue;
153
154
/* "task_func" - A function type for task functions
155
156
I.e. functions for the code which runs when a task is run, all have
157
this type */
158
typedef void (task_func) (const struct task_struct,
159
task_queue *const)
160
__attribute__((nonnull));
161
162
/* "buffer" - A data buffer for a growing array of bytes
163
164
Used for the "password" variable */
165
typedef struct {
166
char *data;
167
size_t length;
168
size_t allocated;
169
} __attribute__((designated_init)) buffer;
170
171
/* "string_set" - A set type which can contain strings
172
173
Used by the "cancelled_filenames" variable */
174
typedef struct {
175
char *argz; /* Do not access these except in */
176
size_t argz_len; /* the string_set_* functions */
177
} __attribute__((designated_init)) string_set;
178
179
/* "task_context" - local variables for tasks
180
181
This data structure distinguishes between different tasks which are
182
using the same function. This data structure is passed to every
183
task function when each task is run.
184
185
Note that not every task uses every struct member. */
186
typedef struct task_struct {
187
task_func *const func; /* The function run by this task */
188
char *const question_filename; /* The question file */
189
const pid_t pid; /* Mandos client process ID */
190
const int epoll_fd; /* The epoll set file descriptor */
191
bool *const quit_now; /* Set to true on fatal errors */
192
const int fd; /* General purpose file descriptor */
193
bool *const mandos_client_exited; /* Set true when client exits */
194
buffer *const password; /* As read from client process */
195
bool *const password_is_read; /* "password" is done growing */
196
char *filename; /* General purpose file name */
197
/* A set of strings of all the file names of questions which have
198
been cancelled for any reason; tasks pertaining to these question
199
files should not be run */
200
string_set *const cancelled_filenames;
201
const mono_microsecs notafter; /* "NotAfter" from question file */
202
/* Updated before each queue run; is compared with queue.next_run */
203
const mono_microsecs *const current_time;
204
} __attribute__((designated_init)) task_context;
205
206
/* Declare all our functions here so we can define them in any order
207
below. Note: test functions are *not* declared here, they are
208
declared in the test section. */
209
__attribute__((warn_unused_result))
210
static bool should_only_run_tests(int *, char **[]);
211
__attribute__((warn_unused_result, cold))
212
static bool run_tests(int, char *[]);
213
static void handle_sigchld(__attribute__((unused)) int sig){}
214
__attribute__((warn_unused_result, malloc))
215
task_queue *create_queue(void);
216
__attribute__((nonnull, warn_unused_result))
217
bool add_to_queue(task_queue *const, const task_context);
218
__attribute__((nonnull))
219
void cleanup_task(const task_context *const);
220
__attribute__((nonnull))
221
void cleanup_queue(task_queue *const *const);
222
__attribute__((pure, nonnull, warn_unused_result))
223
bool queue_has_question(const task_queue *const);
224
__attribute__((nonnull))
225
void cleanup_close(const int *const);
226
__attribute__((nonnull))
227
void cleanup_string(char *const *const);
228
__attribute__((nonnull))
229
void cleanup_buffer(buffer *const);
230
__attribute__((pure, nonnull, warn_unused_result))
231
bool string_set_contains(const string_set, const char *const);
232
__attribute__((nonnull, warn_unused_result))
233
bool string_set_add(string_set *const, const char *const);
234
__attribute__((nonnull))
235
void string_set_clear(string_set *);
236
void string_set_swap(string_set *const, string_set *const);
237
__attribute__((nonnull, warn_unused_result))
238
bool start_mandos_client(task_queue *const, const int, bool *const,
239
bool *const, buffer *const, bool *const,
240
const struct sigaction *const,
241
const sigset_t, const char *const,
242
const uid_t, const gid_t,
243
const char *const *const);
244
__attribute__((nonnull))
245
task_func wait_for_mandos_client_exit;
246
__attribute__((nonnull))
247
task_func read_mandos_client_output;
248
__attribute__((warn_unused_result))
249
bool add_inotify_dir_watch(task_queue *const, const int, bool *const,
250
buffer *const, const char *const,
251
string_set *, const mono_microsecs *const,
252
bool *const, bool *const);
253
__attribute__((nonnull))
254
task_func read_inotify_event;
255
__attribute__((nonnull))
256
task_func open_and_parse_question;
257
__attribute__((nonnull))
258
task_func cancel_old_question;
259
__attribute__((nonnull))
260
task_func connect_question_socket;
261
__attribute__((nonnull))
262
task_func send_password_to_socket;
263
__attribute__((warn_unused_result))
264
bool add_existing_questions(task_queue *const, const int,
265
buffer *const, string_set *,
266
const mono_microsecs *const,
267
bool *const, bool *const,
268
const char *const);
269
__attribute__((nonnull, warn_unused_result))
270
bool wait_for_event(const int, const mono_microsecs,
271
const mono_microsecs);
272
bool run_queue(task_queue **const, string_set *const, bool *const);
273
bool clear_all_fds_from_epoll_set(const int);
274
mono_microsecs get_current_time(void);
275
__attribute__((nonnull, warn_unused_result))
276
bool setup_signal_handler(struct sigaction *const);
277
__attribute__((nonnull))
278
bool restore_signal_handler(const struct sigaction *const);
279
__attribute__((nonnull, warn_unused_result))
280
bool block_sigchld(sigset_t *const);
281
__attribute__((nonnull))
282
bool restore_sigmask(const sigset_t *const);
283
__attribute__((nonnull))
284
bool parse_arguments(int, char *[], const bool, char **, char **,
285
uid_t *const , gid_t *const, char **, size_t *);
286
287
/* End of declarations of private types and functions */
288
289
/* Start of "main" section; this section LACKS TESTS!
290
291
Code here should be as simple as possible. */
292
293
/* These are required to be global by Argp */
294
const char *argp_program_version = "password-agent " VERSION;
295
const char *argp_program_bug_address = "<mandos@recompile.se>";
296
297
int main(int argc, char *argv[]){
298
299
/* If the --test option is passed, skip all normal operations and
300
instead only run the run_tests() function, which also does all
301
its own option parsing, so we don't have to do anything here. */
302
if(should_only_run_tests(&argc, &argv)){
303
if(run_tests(argc, argv)){
304
return EXIT_SUCCESS; /* All tests successful */
305
}
306
return EXIT_FAILURE; /* Some test(s) failed */
307
}
308
309
__attribute__((cleanup(cleanup_string)))
310
char *agent_directory = NULL;
311
312
__attribute__((cleanup(cleanup_string)))
313
char *helper_directory = NULL;
314
315
uid_t user = 0;
316
gid_t group = 0;
317
318
__attribute__((cleanup(cleanup_string)))
319
char *mandos_argz = NULL;
320
size_t mandos_argz_length = 0;
321
322
if(not parse_arguments(argc, argv, true, &agent_directory,
323
&helper_directory, &user, &group,
324
&mandos_argz, &mandos_argz_length)){
325
/* This should never happen, since "true" is passed as the third
326
argument to parse_arguments() above, which should make
327
argp_parse() call exit() if any parsing error occurs. */
328
error(EX_USAGE, errno, "Failed to parse arguments");
329
}
330
331
const char default_agent_directory[] = "/run/systemd/ask-password";
332
const char default_helper_directory[]
333
= "/lib/mandos/plugin-helpers";
334
const char *const default_argv[]
335
= {"/lib/mandos/plugins.d/mandos-client", NULL };
336
337
/* Set variables to default values if unset */
338
if(agent_directory == NULL){
339
agent_directory = strdup(default_agent_directory);
340
if(agent_directory == NULL){
341
error(EX_OSERR, errno, "Failed strdup()");
342
}
343
}
344
if(helper_directory == NULL){
345
helper_directory = strdup(default_helper_directory);
346
if(helper_directory == NULL){
347
error(EX_OSERR, errno, "Failed strdup()");
348
}
349
}
350
if(user == 0){
351
user = 65534; /* nobody */
352
}
353
if(group == 0){
354
group = 65534; /* nogroup */
355
}
356
/* If parse_opt did not create an argz vector, create one with
357
default values */
358
if(mandos_argz == NULL){
359
#ifdef __GNUC__
360
#pragma GCC diagnostic push
361
/* argz_create() takes a non-const argv for some unknown reason -
362
argz_create() isn't modifying the strings, just copying them.
363
Therefore, this cast to non-const should be safe. */
364
#pragma GCC diagnostic ignored "-Wcast-qual"
365
#endif
366
errno = argz_create((char *const *)default_argv, &mandos_argz,
367
&mandos_argz_length);
368
#ifdef __GNUC__
369
#pragma GCC diagnostic pop
370
#endif
371
if(errno != 0){
372
error(EX_OSERR, errno, "Failed argz_create()");
373
}
374
}
375
/* Use argz vector to create a normal argv, usable by execv() */
376
377
char **mandos_argv = malloc((argz_count(mandos_argz,
378
mandos_argz_length)
379
+ 1) * sizeof(char *));
380
if(mandos_argv == NULL){
381
error_t saved_errno = errno;
382
free(mandos_argz);
383
error(EX_OSERR, saved_errno, "Failed malloc()");
384
}
385
argz_extract(mandos_argz, mandos_argz_length, mandos_argv);
386
387
sigset_t orig_sigmask;
388
if(not block_sigchld(&orig_sigmask)){
389
return EX_OSERR;
390
}
391
392
struct sigaction old_sigchld_action;
393
if(not setup_signal_handler(&old_sigchld_action)){
394
return EX_OSERR;
395
}
396
397
mono_microsecs current_time = 0;
398
399
bool mandos_client_exited = false;
400
bool quit_now = false;
401
__attribute__((cleanup(cleanup_close)))
402
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
403
if(epoll_fd < 0){
404
error(EX_OSERR, errno, "Failed to create epoll set fd");
405
}
406
__attribute__((cleanup(cleanup_queue)))
407
task_queue *queue = create_queue();
408
if(queue == NULL){
409
error(EX_OSERR, errno, "Failed to create task queue");
410
}
411
412
__attribute__((cleanup(cleanup_buffer)))
413
buffer password = {};
414
bool password_is_read = false;
415
416
__attribute__((cleanup(string_set_clear)))
417
string_set cancelled_filenames = {};
418
419
/* Add tasks to queue */
420
if(not start_mandos_client(queue, epoll_fd, &mandos_client_exited,
421
&quit_now, &password, &password_is_read,
422
&old_sigchld_action, orig_sigmask,
423
helper_directory, user, group,
424
(const char *const *)mandos_argv)){
425
return EX_OSERR; /* Error has already been printed */
426
}
427
/* These variables were only for start_mandos_client() and are not
428
needed anymore */
429
free(mandos_argv);
430
free(mandos_argz);
431
mandos_argz = NULL;
432
if(not add_inotify_dir_watch(queue, epoll_fd, &quit_now, &password,
433
agent_directory, &cancelled_filenames,
434
¤t_time, &mandos_client_exited,
435
&password_is_read)){
436
switch(errno){ /* Error has already been printed */
437
case EACCES:
438
case ENAMETOOLONG:
439
case ENOENT:
440
case ENOTDIR:
441
return EX_OSFILE;
442
default:
443
return EX_OSERR;
444
}
445
}
446
if(not add_existing_questions(queue, epoll_fd, &password,
447
&cancelled_filenames, ¤t_time,
448
&mandos_client_exited,
449
&password_is_read, agent_directory)){
450
return EXIT_FAILURE; /* Error has already been printed */
451
}
452
453
/* Run queue */
454
do {
455
current_time = get_current_time();
456
if(not wait_for_event(epoll_fd, queue->next_run, current_time)){
457
const error_t saved_errno = errno;
458
error(EXIT_FAILURE, saved_errno, "Failure while waiting for"
459
" events");
460
}
461
462
current_time = get_current_time();
463
if(not run_queue(&queue, &cancelled_filenames, &quit_now)){
464
const error_t saved_errno = errno;
465
error(EXIT_FAILURE, saved_errno, "Failure while running queue");
466
}
467
468
/* When no tasks about questions are left in the queue, break out
469
of the loop (and implicitly exit the program) */
470
} while(queue_has_question(queue));
471
472
restore_signal_handler(&old_sigchld_action);
473
restore_sigmask(&orig_sigmask);
474
475
return EXIT_SUCCESS;
476
}
477
478
__attribute__((warn_unused_result))
479
mono_microsecs get_current_time(void){
480
struct timespec currtime;
481
if(clock_gettime(CLOCK_MONOTONIC, &currtime) != 0){
482
error(0, errno, "Failed to get current time");
483
return 0;
484
}
485
return ((mono_microsecs)currtime.tv_sec * 1000000) /* seconds */
486
+ ((mono_microsecs)currtime.tv_nsec / 1000); /* nanoseconds */
487
}
488
489
/* End of "main" section */
490
491
/* Start of regular code section; ALL this code has tests */
492
493
__attribute__((nonnull))
494
bool parse_arguments(int argc, char *argv[], const bool exit_failure,
495
char **agent_directory, char **helper_directory,
496
uid_t *const user, gid_t *const group,
497
char **mandos_argz, size_t *mandos_argz_length){
498
499
const struct argp_option options[] = {
500
{ .name="agent-directory",.key='d', .arg="DIRECTORY",
501
.doc="Systemd password agent directory" },
502
{ .name="helper-directory",.key=128, .arg="DIRECTORY",
503
.doc="Mandos Client password helper directory" },
504
{ .name="plugin-helper-dir", .key=129, /* From plugin-runner */
505
.flags=OPTION_HIDDEN | OPTION_ALIAS },
506
{ .name="user", .key='u', .arg="USERID",
507
.doc="User ID the Mandos Client will use as its unprivileged"
508
" user" },
509
{ .name="userid", .key=130, /* From plugin--runner */
510
.flags=OPTION_HIDDEN | OPTION_ALIAS },
511
{ .name="group", .key='g', .arg="GROUPID",
512
.doc="Group ID the Mandos Client will use as its unprivileged"
513
" group" },
514
{ .name="groupid", .key=131, /* From plugin--runner */
515
.flags=OPTION_HIDDEN | OPTION_ALIAS },
516
{ .name="test", .key=255, /* See should_only_run_tests() */
517
.doc="Skip normal operation, and only run self-tests. See"
518
" --test --help.", .group=10, },
519
{ NULL },
520
};
521
522
__attribute__((nonnull(3)))
523
error_t parse_opt(int key, char *arg, struct argp_state *state){
524
errno = 0;
525
switch(key){
526
case 'd': /* --agent-directory */
527
*agent_directory = strdup(arg);
528
break;
529
case 128: /* --helper-directory */
530
case 129: /* --plugin-helper-dir */
531
*helper_directory = strdup(arg);
532
break;
533
case 'u': /* --user */
534
case 130: /* --userid */
535
{
536
char *tmp;
537
uintmax_t tmp_id = 0;
538
errno = 0;
539
tmp_id = (uid_t)strtoumax(arg, &tmp, 10);
540
if(errno != 0 or tmp == arg or *tmp != '\0'
541
or tmp_id != (uid_t)tmp_id or (uid_t)tmp_id == 0){
542
return ARGP_ERR_UNKNOWN;
543
}
544
*user = (uid_t)tmp_id;
545
errno = 0;
546
break;
547
}
548
case 'g': /* --group */
549
case 131: /* --groupid */
550
{
551
char *tmp;
552
uintmax_t tmp_id = 0;
553
errno = 0;
554
tmp_id = (uid_t)strtoumax(arg, &tmp, 10);
555
if(errno != 0 or tmp == arg or *tmp != '\0'
556
or tmp_id != (gid_t)tmp_id or (gid_t)tmp_id == 0){
557
return ARGP_ERR_UNKNOWN;
558
}
559
*group = (gid_t)tmp_id;
560
errno = 0;
561
break;
562
}
563
case ARGP_KEY_ARGS:
564
/* Copy arguments into argz vector */
565
return argz_create(state->argv + state->next, mandos_argz,
566
mandos_argz_length);
567
default:
568
return ARGP_ERR_UNKNOWN;
569
}
570
return errno;
571
}
572
573
const struct argp argp = {
574
.options=options,
575
.parser=parse_opt,
576
.args_doc="[MANDOS_CLIENT [OPTION...]]\n--test",
577
.doc = "Mandos password agent -- runs Mandos client as a"
578
" systemd password agent",
579
};
580
581
errno = argp_parse(&argp, argc, argv,
582
exit_failure ? 0 : ARGP_NO_EXIT, NULL, NULL);
583
584
return errno == 0;
585
}
586
587
__attribute__((nonnull, warn_unused_result))
588
bool block_sigchld(sigset_t *const orig_sigmask){
589
sigset_t sigchld_sigmask;
590
if(sigemptyset(&sigchld_sigmask) < 0){
591
error(0, errno, "Failed to empty signal set");
592
return false;
593
}
594
if(sigaddset(&sigchld_sigmask, SIGCHLD) < 0){
595
error(0, errno, "Failed to add SIGCHLD to signal set");
596
return false;
597
}
598
if(pthread_sigmask(SIG_BLOCK, &sigchld_sigmask, orig_sigmask) != 0){
599
error(0, errno, "Failed to block SIGCHLD signal");
600
return false;
601
}
602
return true;
603
}
604
605
__attribute__((nonnull, warn_unused_result, const))
606
bool restore_sigmask(const sigset_t *const orig_sigmask){
607
if(pthread_sigmask(SIG_SETMASK, orig_sigmask, NULL) != 0){
608
error(0, errno, "Failed to restore blocked signals");
609
return false;
610
}
611
return true;
612
}
613
614
__attribute__((nonnull, warn_unused_result))
615
bool setup_signal_handler(struct sigaction *const old_sigchld_action){
616
struct sigaction sigchld_action = {
617
.sa_handler=handle_sigchld,
618
.sa_flags=SA_RESTART | SA_NOCLDSTOP,
619
};
620
/* Set all signals in "sa_mask" struct member; this makes all
621
signals automatically blocked during signal handler */
622
if(sigfillset(&sigchld_action.sa_mask) != 0){
623
error(0, errno, "Failed to do sigfillset()");
624
return false;
625
}
626
if(sigaction(SIGCHLD, &sigchld_action, old_sigchld_action) != 0){
627
error(0, errno, "Failed to set SIGCHLD signal handler");
628
return false;
629
}
630
return true;
631
}
632
633
__attribute__((nonnull, warn_unused_result))
634
bool restore_signal_handler(const struct sigaction *const
635
old_sigchld_action){
636
if(sigaction(SIGCHLD, old_sigchld_action, NULL) != 0){
637
error(0, errno, "Failed to restore signal handler");
638
return false;
639
}
640
return true;
641
}
642
643
__attribute__((warn_unused_result, malloc))
644
task_queue *create_queue(void){
645
task_queue *queue = malloc(sizeof(task_queue));
646
if(queue){
647
queue->tasks = NULL;
648
queue->length = 0;
649
queue->allocated = 0;
650
queue->next_run = 0;
651
}
652
return queue;
653
}
654
655
__attribute__((nonnull, warn_unused_result))
656
bool add_to_queue(task_queue *const queue, const task_context task){
657
if((queue->length + 1) > (SIZE_MAX / sizeof(task_context))){
658
/* overflow */
659
error(0, ENOMEM, "Failed to allocate %" PRIuMAX
660
" tasks for queue->tasks", (uintmax_t)(queue->length + 1));
661
errno = ENOMEM;
662
return false;
663
}
664
const size_t needed_size = sizeof(task_context)*(queue->length + 1);
665
if(needed_size > (queue->allocated)){
666
task_context *const new_tasks = realloc(queue->tasks,
667
needed_size);
668
if(new_tasks == NULL){
669
error(0, errno, "Failed to allocate %" PRIuMAX
670
" bytes for queue->tasks", (uintmax_t)needed_size);
671
return false;
672
}
673
queue->tasks = new_tasks;
674
queue->allocated = needed_size;
675
}
676
/* Using memcpy here is necessary because doing */
677
/* queue->tasks[queue->length++] = task; */
678
/* would violate const-ness of task members */
679
memcpy(&(queue->tasks[queue->length++]), &task,
680
sizeof(task_context));
681
return true;
682
}
683
684
__attribute__((nonnull))
685
void cleanup_task(const task_context *const task){
686
const error_t saved_errno = errno;
687
/* free and close all task data */
688
free(task->question_filename);
689
if(task->filename != task->question_filename){
690
free(task->filename);
691
}
692
if(task->pid > 0){
693
kill(task->pid, SIGTERM);
694
}
695
if(task->fd > 0){
696
close(task->fd);
697
}
698
errno = saved_errno;
699
}
700
701
__attribute__((nonnull))
702
void free_queue(task_queue *const queue){
703
free(queue->tasks);
704
free(queue);
705
}
706
707
__attribute__((nonnull))
708
void cleanup_queue(task_queue *const *const queue){
709
if(*queue == NULL){
710
return;
711
}
712
for(size_t i = 0; i < (*queue)->length; i++){
713
const task_context *const task = ((*queue)->tasks)+i;
714
cleanup_task(task);
715
}
716
free_queue(*queue);
717
}
718
719
__attribute__((pure, nonnull, warn_unused_result))
720
bool queue_has_question(const task_queue *const queue){
721
for(size_t i=0; i < queue->length; i++){
722
if(queue->tasks[i].question_filename != NULL){
723
return true;
724
}
725
}
726
return false;
727
}
728
729
__attribute__((nonnull))
730
void cleanup_close(const int *const fd){
731
const error_t saved_errno = errno;
732
close(*fd);
733
errno = saved_errno;
734
}
735
736
__attribute__((nonnull))
737
void cleanup_string(char *const *const ptr){
738
free(*ptr);
739
}
740
741
__attribute__((nonnull))
742
void cleanup_buffer(buffer *buf){
743
if(buf->allocated > 0){
744
#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 25)
745
explicit_bzero(buf->data, buf->allocated);
746
#else
747
memset(buf->data, '\0', buf->allocated);
748
#endif
749
}
750
if(buf->data != NULL){
751
if(munlock(buf->data, buf->allocated) != 0){
752
error(0, errno, "Failed to unlock memory of old buffer");
753
}
754
free(buf->data);
755
buf->data = NULL;
756
}
757
buf->length = 0;
758
buf->allocated = 0;
759
}
760
761
__attribute__((pure, nonnull, warn_unused_result))
762
bool string_set_contains(const string_set set, const char *const str){
763
for(const char *s = set.argz; s != NULL and set.argz_len > 0;
764
s = argz_next(set.argz, set.argz_len, s)){
765
if(strcmp(s, str) == 0){
766
return true;
767
}
768
}
769
return false;
770
}
771
772
__attribute__((nonnull, warn_unused_result))
773
bool string_set_add(string_set *const set, const char *const str){
774
if(string_set_contains(*set, str)){
775
return true;
776
}
777
error_t error = argz_add(&set->argz, &set->argz_len, str);
778
if(error == 0){
779
return true;
780
}
781
errno = error;
782
return false;
783
}
784
785
__attribute__((nonnull))
786
void string_set_clear(string_set *set){
787
free(set->argz);
788
set->argz = NULL;
789
set->argz_len = 0;
790
}
791
792
__attribute__((nonnull))
793
void string_set_swap(string_set *const set1, string_set *const set2){
794
/* Swap contents of two string sets */
795
{
796
char *const tmp_argz = set1->argz;
797
set1->argz = set2->argz;
798
set2->argz = tmp_argz;
799
}
800
{
801
const size_t tmp_argz_len = set1->argz_len;
802
set1->argz_len = set2->argz_len;
803
set2->argz_len = tmp_argz_len;
804
}
805
}
806
807
__attribute__((nonnull, warn_unused_result))
808
bool start_mandos_client(task_queue *const queue,
809
const int epoll_fd,
810
bool *const mandos_client_exited,
811
bool *const quit_now, buffer *const password,
812
bool *const password_is_read,
813
const struct sigaction *const
814
old_sigchld_action, const sigset_t sigmask,
815
const char *const helper_directory,
816
const uid_t user, const gid_t group,
817
const char *const *const argv){
818
int pipefds[2];
819
if(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK) != 0){
820
error(0, errno, "Failed to pipe2(..., O_CLOEXEC | O_NONBLOCK)");
821
return false;
822
}
823
824
const pid_t pid = fork();
825
if(pid == 0){
826
if(not restore_signal_handler(old_sigchld_action)){
827
_exit(EXIT_FAILURE);
828
}
829
if(not restore_sigmask(&sigmask)){
830
_exit(EXIT_FAILURE);
831
}
832
if(close(pipefds[0]) != 0){
833
error(0, errno, "Failed to close() parent pipe fd");
834
_exit(EXIT_FAILURE);
835
}
836
if(dup2(pipefds[1], STDOUT_FILENO) == -1){
837
error(0, errno, "Failed to dup2() pipe fd to stdout");
838
_exit(EXIT_FAILURE);
839
}
840
if(close(pipefds[1]) != 0){
841
error(0, errno, "Failed to close() old child pipe fd");
842
_exit(EXIT_FAILURE);
843
}
844
if(setenv("MANDOSPLUGINHELPERDIR", helper_directory, 1) != 0){
845
error(0, errno, "Failed to setenv(\"MANDOSPLUGINHELPERDIR\","
846
" \"%s\", 1)", helper_directory);
847
_exit(EXIT_FAILURE);
848
}
849
if(group != 0 and setresgid(group, 0, 0) == -1){
850
error(0, errno, "Failed to setresgid(-1, %" PRIuMAX ", %"
851
PRIuMAX")", (uintmax_t)group, (uintmax_t)group);
852
_exit(EXIT_FAILURE);
853
}
854
if(user != 0 and setresuid(user, 0, 0) == -1){
855
error(0, errno, "Failed to setresuid(-1, %" PRIuMAX ", %"
856
PRIuMAX")", (uintmax_t)user, (uintmax_t)user);
857
_exit(EXIT_FAILURE);
858
}
859
#ifdef __GNUC__
860
#pragma GCC diagnostic push
861
/* For historical reasons, the "argv" argument to execv() is not
862
const, but it is safe to override this. */
863
#pragma GCC diagnostic ignored "-Wcast-qual"
864
#endif
865
execv(argv[0], (char **)argv);
866
#ifdef __GNUC__
867
#pragma GCC diagnostic pop
868
#endif
869
error(0, errno, "execv(\"%s\", ...) failed", argv[0]);
870
_exit(EXIT_FAILURE);
871
}
872
close(pipefds[1]);
873
874
if(pid == -1){
875
error(0, errno, "Failed to fork()");
876
close(pipefds[0]);
877
return false;
878
}
879
880
if(not add_to_queue(queue, (task_context){
881
.func=wait_for_mandos_client_exit,
882
.pid=pid,
883
.mandos_client_exited=mandos_client_exited,
884
.quit_now=quit_now,
885
})){
886
error(0, errno, "Failed to add wait_for_mandos_client to queue");
887
close(pipefds[0]);
888
return false;
889
}
890
891
const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, pipefds[0],
892
&(struct epoll_event)
893
{ .events=EPOLLIN | EPOLLRDHUP });
894
if(ret != 0 and errno != EEXIST){
895
error(0, errno, "Failed to add file descriptor to epoll set");
896
close(pipefds[0]);
897
return false;
898
}
899
900
return add_to_queue(queue, (task_context){
901
.func=read_mandos_client_output,
902
.epoll_fd=epoll_fd,
903
.fd=pipefds[0],
904
.quit_now=quit_now,
905
.password=password,
906
.password_is_read=password_is_read,
907
});
908
}
909
910
__attribute__((nonnull))
911
void wait_for_mandos_client_exit(const task_context task,
912
task_queue *const queue){
913
const pid_t pid = task.pid;
914
bool *const mandos_client_exited = task.mandos_client_exited;
915
bool *const quit_now = task.quit_now;
916
917
int status;
918
switch(waitpid(pid, &status, WNOHANG)){
919
case 0: /* Not exited yet */
920
if(not add_to_queue(queue, task)){
921
error(0, errno, "Failed to add myself to queue");
922
*quit_now = true;
923
}
924
break;
925
case -1: /* Error */
926
error(0, errno, "waitpid(%" PRIdMAX ") failed", (intmax_t)pid);
927
if(errno != ECHILD){
928
kill(pid, SIGTERM);
929
}
930
*quit_now = true;
931
break;
932
default: /* Has exited */
933
*mandos_client_exited = true;
934
if((not WIFEXITED(status))
935
or (WEXITSTATUS(status) != EXIT_SUCCESS)){
936
error(0, 0, "Mandos client failed or was killed");
937
*quit_now = true;
938
}
939
}
940
}
941
942
__attribute__((nonnull))
943
void read_mandos_client_output(const task_context task,
944
task_queue *const queue){
945
buffer *const password = task.password;
946
bool *const quit_now = task.quit_now;
947
bool *const password_is_read = task.password_is_read;
948
const int fd = task.fd;
949
const int epoll_fd = task.epoll_fd;
950
951
const size_t new_potential_size = (password->length + PIPE_BUF);
952
if(password->allocated < new_potential_size){
953
char *const new_buffer = calloc(new_potential_size, 1);
954
if(new_buffer == NULL){
955
error(0, errno, "Failed to allocate %" PRIuMAX
956
" bytes for password", (uintmax_t)new_potential_size);
957
*quit_now = true;
958
close(fd);
959
return;
960
}
961
if(mlock(new_buffer, new_potential_size) != 0){
962
/* Warn but do not treat as fatal error */
963
if(errno != EPERM and errno != ENOMEM){
964
error(0, errno, "Failed to lock memory for password");
965
}
966
}
967
if(password->length > 0){
968
memcpy(new_buffer, password->data, password->length);
969
#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 25)
970
explicit_bzero(password->data, password->allocated);
971
#else
972
memset(password->data, '\0', password->allocated);
973
#endif
974
}
975
if(password->data != NULL){
976
if(munlock(password->data, password->allocated) != 0){
977
error(0, errno, "Failed to unlock memory of old buffer");
978
}
979
free(password->data);
980
}
981
password->data = new_buffer;
982
password->allocated = new_potential_size;
983
}
984
985
const ssize_t read_length = read(fd, password->data
986
+ password->length, PIPE_BUF);
987
988
if(read_length == 0){ /* EOF */
989
*password_is_read = true;
990
close(fd);
991
return;
992
}
993
if(read_length < 0 and errno != EAGAIN){ /* Actual error */
994
error(0, errno, "Failed to read password from Mandos client");
995
*quit_now = true;
996
close(fd);
997
return;
998
}
999
if(read_length > 0){ /* Data has been read */
1000
password->length += (size_t)read_length;
1001
}
1002
1003
/* Either data was read, or EAGAIN was indicated, meaning no data
1004
available yet */
1005
1006
/* Re-add the fd to the epoll set */
1007
const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,
1008
&(struct epoll_event)
1009
{ .events=EPOLLIN | EPOLLRDHUP });
1010
if(ret != 0 and errno != EEXIST){
1011
error(0, errno, "Failed to re-add file descriptor to epoll set");
1012
*quit_now = true;
1013
close(fd);
1014
return;
1015
}
1016
1017
/* Re-add myself to the queue */
1018
if(not add_to_queue(queue, task)){
1019
error(0, errno, "Failed to add myself to queue");
1020
*quit_now = true;
1021
close(fd);
1022
}
1023
}
1024
1025
__attribute__((nonnull, warn_unused_result))
1026
bool add_inotify_dir_watch(task_queue *const queue,
1027
const int epoll_fd, bool *const quit_now,
1028
buffer *const password,
1029
const char *const dir,
1030
string_set *cancelled_filenames,
1031
const mono_microsecs *const current_time,
1032
bool *const mandos_client_exited,
1033
bool *const password_is_read){
1034
const int fd = inotify_init1(IN_NONBLOCK | IN_CLOEXEC);
1035
if(fd == -1){
1036
error(0, errno, "Failed to create inotify instance");
1037
return false;
1038
}
1039
1040
if(inotify_add_watch(fd, dir, IN_CLOSE_WRITE | IN_MOVED_TO
1041
| IN_MOVED_FROM| IN_DELETE | IN_EXCL_UNLINK
1042
| IN_ONLYDIR)
1043
== -1){
1044
error(0, errno, "Failed to create inotify watch on %s", dir);
1045
return false;
1046
}
1047
1048
/* Add the inotify fd to the epoll set */
1049
const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,
1050
&(struct epoll_event)
1051
{ .events=EPOLLIN | EPOLLRDHUP });
1052
if(ret != 0 and errno != EEXIST){
1053
error(0, errno, "Failed to add file descriptor to epoll set");
1054
close(fd);
1055
return false;
1056
}
1057
1058
const task_context read_inotify_event_task = {
1059
.func=read_inotify_event,
1060
.epoll_fd=epoll_fd,
1061
.quit_now=quit_now,
1062
.password=password,
1063
.fd=fd,
1064
.filename=strdup(dir),
1065
.cancelled_filenames=cancelled_filenames,
1066
.current_time=current_time,
1067
.mandos_client_exited=mandos_client_exited,
1068
.password_is_read=password_is_read,
1069
};
1070
if(read_inotify_event_task.filename == NULL){
1071
error(0, errno, "Failed to strdup(\"%s\")", dir);
1072
close(fd);
1073
return false;
1074
}
1075
1076
return add_to_queue(queue, read_inotify_event_task);
1077
}
1078
1079
__attribute__((nonnull))
1080
void read_inotify_event(const task_context task,
1081
task_queue *const queue){
1082
const int fd = task.fd;
1083
const int epoll_fd = task.epoll_fd;
1084
char *const filename = task.filename;
1085
bool *quit_now = task.quit_now;
1086
buffer *const password = task.password;
1087
string_set *const cancelled_filenames = task.cancelled_filenames;
1088
const mono_microsecs *const current_time = task.current_time;
1089
bool *const mandos_client_exited = task.mandos_client_exited;
1090
bool *const password_is_read = task.password_is_read;
1091
1092
/* "sufficient to read at least one event." - inotify(7) */
1093
const size_t ievent_size = (sizeof(struct inotify_event)
1094
+ NAME_MAX + 1);
1095
struct {
1096
struct inotify_event event;
1097
char name_buffer[NAME_MAX + 1];
1098
} ievent_buffer;
1099
struct inotify_event *const ievent = &ievent_buffer.event;
1100
1101
#if defined(__GNUC__) and __GNUC__ >= 7
1102
#pragma GCC diagnostic push
1103
/* ievent is pointing into a struct which is of sufficient size */
1104
#pragma GCC diagnostic ignored "-Wstringop-overflow"
1105
#endif
1106
const ssize_t read_length = read(fd, ievent, ievent_size);
1107
#if defined(__GNUC__) and __GNUC__ >= 7
1108
#pragma GCC diagnostic pop
1109
#endif
1110
if(read_length == 0){ /* EOF */
1111
error(0, 0, "Got EOF from inotify fd for directory %s", filename);
1112
*quit_now = true;
1113
cleanup_task(&task);
1114
return;
1115
}
1116
if(read_length < 0 and errno != EAGAIN){ /* Actual error */
1117
error(0, errno, "Failed to read from inotify fd for directory %s",
1118
filename);
1119
*quit_now = true;
1120
cleanup_task(&task);
1121
return;
1122
}
1123
if(read_length > 0 /* Data has been read */
1124
and fnmatch("ask.*", ievent->name, FNM_FILE_NAME) == 0){
1125
char *question_filename = NULL;
1126
const ssize_t question_filename_length
1127
= asprintf(&question_filename, "%s/%s", filename, ievent->name);
1128
if(question_filename_length < 0){
1129
error(0, errno, "Failed to create file name from directory name"
1130
" %s and file name %s", filename, ievent->name);
1131
} else {
1132
if(ievent->mask & (IN_CLOSE_WRITE | IN_MOVED_TO)){
1133
if(not add_to_queue(queue, (task_context){
1134
.func=open_and_parse_question,
1135
.epoll_fd=epoll_fd,
1136
.question_filename=question_filename,
1137
.filename=question_filename,
1138
.password=password,
1139
.cancelled_filenames=cancelled_filenames,
1140
.current_time=current_time,
1141
.mandos_client_exited=mandos_client_exited,
1142
.password_is_read=password_is_read,
1143
})){
1144
error(0, errno, "Failed to add open_and_parse_question task"
1145
" for file name %s to queue", filename);
1146
} else {
1147
/* Force the added task (open_and_parse_question) to run
1148
immediately */
1149
queue->next_run = 1;
1150
}
1151
} else if(ievent->mask & (IN_MOVED_FROM | IN_DELETE)){
1152
if(not string_set_add(cancelled_filenames,
1153
question_filename)){
1154
error(0, errno, "Could not add question %s to"
1155
" cancelled_questions", question_filename);
1156
*quit_now = true;
1157
free(question_filename);
1158
cleanup_task(&task);
1159
return;
1160
}
1161
free(question_filename);
1162
}
1163
}
1164
}
1165
1166
/* Either data was read, or EAGAIN was indicated, meaning no data
1167
available yet */
1168
1169
/* Re-add myself to the queue */
1170
if(not add_to_queue(queue, task)){
1171
error(0, errno, "Failed to re-add read_inotify_event(%s) to"
1172
" queue", filename);
1173
*quit_now = true;
1174
cleanup_task(&task);
1175
return;
1176
}
1177
1178
/* Re-add the fd to the epoll set */
1179
const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,
1180
&(struct epoll_event)
1181
{ .events=EPOLLIN | EPOLLRDHUP });
1182
if(ret != 0 and errno != EEXIST){
1183
error(0, errno, "Failed to re-add inotify file descriptor %d for"
1184
" directory %s to epoll set", fd, filename);
1185
/* Force the added task (read_inotify_event) to run again, at most
1186
one second from now */
1187
if((queue->next_run == 0)
1188
or (queue->next_run > (*current_time + 1000000))){
1189
queue->next_run = *current_time + 1000000;
1190
}
1191
}
1192
}
1193
1194
__attribute__((nonnull))
1195
void open_and_parse_question(const task_context task,
1196
task_queue *const queue){
1197
__attribute__((cleanup(cleanup_string)))
1198
char *question_filename = task.question_filename;
1199
const int epoll_fd = task.epoll_fd;
1200
buffer *const password = task.password;
1201
string_set *const cancelled_filenames = task.cancelled_filenames;
1202
const mono_microsecs *const current_time = task.current_time;
1203
bool *const mandos_client_exited = task.mandos_client_exited;
1204
bool *const password_is_read = task.password_is_read;
1205
1206
/* We use the GLib "Key-value file parser" functions to parse the
1207
question file. See <https://systemd.io/PASSWORD_AGENTS/> for
1208
specification of contents */
1209
__attribute__((nonnull))
1210
void cleanup_g_key_file(GKeyFile **key_file){
1211
if(*key_file != NULL){
1212
g_key_file_free(*key_file);
1213
}
1214
}
1215
1216
__attribute__((cleanup(cleanup_g_key_file)))
1217
GKeyFile *key_file = g_key_file_new();
1218
if(key_file == NULL){
1219
error(0, errno, "Failed g_key_file_new() for \"%s\"",
1220
question_filename);
1221
return;
1222
}
1223
GError *glib_error = NULL;
1224
if(g_key_file_load_from_file(key_file, question_filename,
1225
G_KEY_FILE_NONE, &glib_error) != TRUE){
1226
/* If a file was removed, we should ignore it, so */
1227
/* only show error message if file actually existed */
1228
if(glib_error->code != G_FILE_ERROR_NOENT){
1229
error(0, 0, "Failed to load question data from file \"%s\": %s",
1230
question_filename, glib_error->message);
1231
}
1232
return;
1233
}
1234
1235
__attribute__((cleanup(cleanup_string)))
1236
char *socket_name = g_key_file_get_string(key_file, "Ask",
1237
"Socket",
1238
&glib_error);
1239
if(socket_name == NULL){
1240
error(0, 0, "Question file \"%s\" did not contain \"Socket\": %s",
1241
question_filename, glib_error->message);
1242
return;
1243
}
1244
1245
if(strlen(socket_name) == 0){
1246
error(0, 0, "Question file \"%s\" had empty \"Socket\" value",
1247
question_filename);
1248
return;
1249
}
1250
1251
const guint64 pid = g_key_file_get_uint64(key_file, "Ask", "PID",
1252
&glib_error);
1253
if(glib_error != NULL){
1254
error(0, 0, "Question file \"%s\" contained bad \"PID\": %s",
1255
question_filename, glib_error->message);
1256
return;
1257
}
1258
1259
if((pid != (guint64)((pid_t)pid))
1260
or (kill((pid_t)pid, 0) != 0)){
1261
error(0, 0, "PID %" PRIuMAX " in question file \"%s\" is bad or"
1262
" does not exist", (uintmax_t)pid, question_filename);
1263
return;
1264
}
1265
1266
guint64 notafter = g_key_file_get_uint64(key_file, "Ask",
1267
"NotAfter", &glib_error);
1268
if(glib_error != NULL){
1269
if(glib_error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND){
1270
error(0, 0, "Question file \"%s\" contained bad \"NotAfter\":"
1271
" %s", question_filename, glib_error->message);
1272
}
1273
notafter = 0;
1274
}
1275
if(notafter != 0){
1276
if(queue->next_run == 0 or (queue->next_run > notafter)){
1277
queue->next_run = notafter;
1278
}
1279
if(*current_time >= notafter){
1280
return;
1281
}
1282
}
1283
1284
const task_context connect_question_socket_task = {
1285
.func=connect_question_socket,
1286
.question_filename=strdup(question_filename),
1287
.epoll_fd=epoll_fd,
1288
.password=password,
1289
.filename=strdup(socket_name),
1290
.cancelled_filenames=task.cancelled_filenames,
1291
.mandos_client_exited=mandos_client_exited,
1292
.password_is_read=password_is_read,
1293
.current_time=current_time,
1294
};
1295
if(connect_question_socket_task.question_filename == NULL
1296
or connect_question_socket_task.filename == NULL
1297
or not add_to_queue(queue, connect_question_socket_task)){
1298
error(0, errno, "Failed to add connect_question_socket for socket"
1299
" %s (from \"%s\") to queue", socket_name,
1300
question_filename);
1301
cleanup_task(&connect_question_socket_task);
1302
return;
1303
}
1304
/* Force the added task (connect_question_socket) to run
1305
immediately */
1306
queue->next_run = 1;
1307
1308
if(notafter > 0){
1309
char *const dup_filename = strdup(question_filename);
1310
const task_context cancel_old_question_task = {
1311
.func=cancel_old_question,
1312
.question_filename=dup_filename,
1313
.notafter=notafter,
1314
.filename=dup_filename,
1315
.cancelled_filenames=cancelled_filenames,
1316
.current_time=current_time,
1317
};
1318
if(cancel_old_question_task.question_filename == NULL
1319
or not add_to_queue(queue, cancel_old_question_task)){
1320
error(0, errno, "Failed to add cancel_old_question for file "
1321
"\"%s\" to queue", question_filename);
1322
cleanup_task(&cancel_old_question_task);
1323
return;
1324
}
1325
}
1326
}
1327
1328
__attribute__((nonnull))
1329
void cancel_old_question(const task_context task,
1330
task_queue *const queue){
1331
char *const question_filename = task.question_filename;
1332
string_set *const cancelled_filenames = task.cancelled_filenames;
1333
const mono_microsecs notafter = task.notafter;
1334
const mono_microsecs *const current_time = task.current_time;
1335
1336
if(*current_time >= notafter){
1337
if(not string_set_add(cancelled_filenames, question_filename)){
1338
error(0, errno, "Failed to cancel question for file %s",
1339
question_filename);
1340
}
1341
cleanup_task(&task);
1342
return;
1343
}
1344
1345
if(not add_to_queue(queue, task)){
1346
error(0, errno, "Failed to add cancel_old_question for file "
1347
"%s to queue", question_filename);
1348
cleanup_task(&task);
1349
return;
1350
}
1351
1352
if((queue->next_run == 0) or (queue->next_run > notafter)){
1353
queue->next_run = notafter;
1354
}
1355
}
1356
1357
__attribute__((nonnull))
1358
void connect_question_socket(const task_context task,
1359
task_queue *const queue){
1360
char *const question_filename = task.question_filename;
1361
char *const filename = task.filename;
1362
const int epoll_fd = task.epoll_fd;
1363
buffer *const password = task.password;
1364
string_set *const cancelled_filenames = task.cancelled_filenames;
1365
bool *const mandos_client_exited = task.mandos_client_exited;
1366
bool *const password_is_read = task.password_is_read;
1367
const mono_microsecs *const current_time = task.current_time;
1368
1369
struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };
1370
1371
if(sizeof(sock_name.sun_path) <= strlen(filename)){
1372
error(0, 0, "Socket filename is larger than"
1373
" sizeof(sockaddr_un.sun_path); %" PRIuMAX ": \"%s\"",
1374
(uintmax_t)sizeof(sock_name.sun_path), filename);
1375
if(not string_set_add(cancelled_filenames, question_filename)){
1376
error(0, errno, "Failed to cancel question for file %s",
1377
question_filename);
1378
}
1379
cleanup_task(&task);
1380
return;
1381
}
1382
1383
const int fd = socket(PF_LOCAL, SOCK_DGRAM
1384
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);
1385
if(fd < 0){
1386
error(0, errno,
1387
"Failed to create socket(PF_LOCAL, SOCK_DGRAM, 0)");
1388
if(not add_to_queue(queue, task)){
1389
error(0, errno, "Failed to add connect_question_socket for file"
1390
" \"%s\" and socket \"%s\" to queue", question_filename,
1391
filename);
1392
cleanup_task(&task);
1393
} else {
1394
/* Force the added task (connect_question_socket) to run
1395
immediately */
1396
queue->next_run = 1;
1397
}
1398
return;
1399
}
1400
1401
strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));
1402
if(connect(fd, (struct sockaddr *)&sock_name,
1403
(socklen_t)SUN_LEN(&sock_name)) != 0){
1404
error(0, errno, "Failed to connect socket to \"%s\"", filename);
1405
if(not add_to_queue(queue, task)){
1406
error(0, errno, "Failed to add connect_question_socket for file"
1407
" \"%s\" and socket \"%s\" to queue", question_filename,
1408
filename);
1409
cleanup_task(&task);
1410
} else {
1411
/* Force the added task (connect_question_socket) to run again,
1412
at most one second from now */
1413
if((queue->next_run == 0)
1414
or (queue->next_run > (*current_time + 1000000))){
1415
queue->next_run = *current_time + 1000000;
1416
}
1417
}
1418
return;
1419
}
1420
1421
/* Not necessary, but we can try, and merely warn on failure */
1422
if(shutdown(fd, SHUT_RD) != 0){
1423
error(0, errno, "Failed to shutdown reading from socket \"%s\"",
1424
filename);
1425
}
1426
1427
/* Add the fd to the epoll set */
1428
if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,
1429
&(struct epoll_event){ .events=EPOLLOUT })
1430
!= 0){
1431
error(0, errno, "Failed to add inotify file descriptor %d for"
1432
" socket %s to epoll set", fd, filename);
1433
if(not add_to_queue(queue, task)){
1434
error(0, errno, "Failed to add connect_question_socket for file"
1435
" \"%s\" and socket \"%s\" to queue", question_filename,
1436
filename);
1437
cleanup_task(&task);
1438
} else {
1439
/* Force the added task (connect_question_socket) to run again,
1440
at most one second from now */
1441
if((queue->next_run == 0)
1442
or (queue->next_run > (*current_time + 1000000))){
1443
queue->next_run = *current_time + 1000000;
1444
}
1445
}
1446
return;
1447
}
1448
1449
/* add task send_password_to_socket to queue */
1450
const task_context send_password_to_socket_task = {
1451
.func=send_password_to_socket,
1452
.question_filename=question_filename,
1453
.filename=filename,
1454
.epoll_fd=epoll_fd,
1455
.fd=fd,
1456
.password=password,
1457
.cancelled_filenames=cancelled_filenames,
1458
.mandos_client_exited=mandos_client_exited,
1459
.password_is_read=password_is_read,
1460
.current_time=current_time,
1461
};
1462
1463
if(not add_to_queue(queue, send_password_to_socket_task)){
1464
error(0, errno, "Failed to add send_password_to_socket for"
1465
" file \"%s\" and socket \"%s\" to queue",
1466
question_filename, filename);
1467
cleanup_task(&send_password_to_socket_task);
1468
}
1469
}
1470
1471
__attribute__((nonnull))
1472
void send_password_to_socket(const task_context task,
1473
task_queue *const queue){
1474
char *const question_filename=task.question_filename;
1475
char *const filename=task.filename;
1476
const int epoll_fd=task.epoll_fd;
1477
const int fd=task.fd;
1478
buffer *const password=task.password;
1479
string_set *const cancelled_filenames=task.cancelled_filenames;
1480
bool *const mandos_client_exited = task.mandos_client_exited;
1481
bool *const password_is_read = task.password_is_read;
1482
const mono_microsecs *const current_time = task.current_time;
1483
1484
if(*mandos_client_exited and *password_is_read){
1485
1486
const size_t send_buffer_length = password->length + 2;
1487
char *send_buffer = malloc(send_buffer_length);
1488
if(send_buffer == NULL){
1489
error(0, errno, "Failed to allocate send_buffer");
1490
} else {
1491
#if defined(__GNUC__) and __GNUC__ >= 5
1492
#pragma GCC diagnostic push
1493
/* mlock() does not access the memory */
1494
#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
1495
#endif
1496
if(mlock(send_buffer, send_buffer_length) != 0){
1497
#if defined(__GNUC__) and __GNUC__ >= 5
1498
#pragma GCC diagnostic pop
1499
#endif
1500
/* Warn but do not treat as fatal error */
1501
if(errno != EPERM and errno != ENOMEM){
1502
error(0, errno, "Failed to lock memory for password"
1503
" buffer");
1504
}
1505
}
1506
/* “[…] send a single datagram to the socket consisting of the
1507
password string either prefixed with "+" or with "-"
1508
depending on whether the password entry was successful or
1509
not. You may but don't have to include a final NUL byte in
1510
your message.
1511
1512
— <https://systemd.io/PASSWORD_AGENTS/> (Tue, 15 Sep 2020
1513
14:24:20 GMT)
1514
*/
1515
send_buffer[0] = '+'; /* Prefix with "+" */
1516
/* Always add an extra NUL */
1517
send_buffer[password->length + 1] = '\0';
1518
if(password->length > 0){
1519
memcpy(send_buffer + 1, password->data, password->length);
1520
}
1521
errno = 0;
1522
ssize_t ssret = send(fd, send_buffer, send_buffer_length,
1523
MSG_NOSIGNAL);
1524
const error_t saved_errno = (ssret < 0) ? errno : 0;
1525
#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 25)
1526
explicit_bzero(send_buffer, send_buffer_length);
1527
#else
1528
memset(send_buffer, '\0', send_buffer_length);
1529
#endif
1530
if(munlock(send_buffer, send_buffer_length) != 0){
1531
error(0, errno, "Failed to unlock memory of send buffer");
1532
}
1533
free(send_buffer);
1534
if(ssret < 0 or ssret < (ssize_t)send_buffer_length){
1535
switch(saved_errno){
1536
case EINTR:
1537
case ENOBUFS:
1538
case ENOMEM:
1539
case EADDRINUSE:
1540
case ECONNREFUSED:
1541
case ECONNRESET:
1542
case ENOENT:
1543
case ETOOMANYREFS:
1544
case EAGAIN:
1545
/* Retry, below */
1546
break;
1547
case EMSGSIZE:
1548
error(0, saved_errno, "Password of size %" PRIuMAX
1549
" is too big", (uintmax_t)password->length);
1550
#if __GNUC__ < 7
1551
/* FALLTHROUGH */
1552
#else
1553
__attribute__((fallthrough));
1554
#endif
1555
case 0:
1556
if(ssret >= 0 and ssret < (ssize_t)send_buffer_length){
1557
error(0, 0, "Password only partially sent to socket %s: %"
1558
PRIuMAX " out of %" PRIuMAX " bytes sent", filename,
1559
(uintmax_t)ssret, (uintmax_t)send_buffer_length);
1560
}
1561
#if __GNUC__ < 7
1562
/* FALLTHROUGH */
1563
#else
1564
__attribute__((fallthrough));
1565
#endif
1566
default:
1567
error(0, saved_errno, "Failed to send() to socket %s",
1568
filename);
1569
if(not string_set_add(cancelled_filenames,
1570
question_filename)){
1571
error(0, errno, "Failed to cancel question for file %s",
1572
question_filename);
1573
}
1574
cleanup_task(&task);
1575
return;
1576
}
1577
} else {
1578
/* Success */
1579
cleanup_task(&task);
1580
return;
1581
}
1582
}
1583
}
1584
1585
/* We failed or are not ready yet; retry later */
1586
1587
if(not add_to_queue(queue, task)){
1588
error(0, errno, "Failed to add send_password_to_socket for"
1589
" file %s and socket %s to queue", question_filename,
1590
filename);
1591
cleanup_task(&task);
1592
}
1593
1594
/* Add the fd to the epoll set */
1595
if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,
1596
&(struct epoll_event){ .events=EPOLLOUT })
1597
!= 0){
1598
error(0, errno, "Failed to add socket file descriptor %d for"
1599
" socket %s to epoll set", fd, filename);
1600
/* Force the added task (send_password_to_socket) to run again, at
1601
most one second from now */
1602
if((queue->next_run == 0)
1603
or (queue->next_run > (*current_time + 1000000))){
1604
queue->next_run = *current_time + 1000000;
1605
}
1606
}
1607
}
1608
1609
__attribute__((warn_unused_result))
1610
bool add_existing_questions(task_queue *const queue,
1611
const int epoll_fd,
1612
buffer *const password,
1613
string_set *cancelled_filenames,
1614
const mono_microsecs *const current_time,
1615
bool *const mandos_client_exited,
1616
bool *const password_is_read,
1617
const char *const dirname){
1618
__attribute__((cleanup(cleanup_string)))
1619
char *dir_pattern = NULL;
1620
const int ret = asprintf(&dir_pattern, "%s/ask.*", dirname);
1621
if(ret < 0 or dir_pattern == NULL){
1622
error(0, errno, "Could not create glob pattern for directory %s",
1623
dirname);
1624
return false;
1625
}
1626
__attribute__((cleanup(globfree)))
1627
glob_t question_filenames = {};
1628
switch(glob(dir_pattern, GLOB_ERR | GLOB_NOSORT | GLOB_MARK,
1629
NULL, &question_filenames)){
1630
case GLOB_ABORTED:
1631
default:
1632
error(0, errno, "Failed to open directory %s", dirname);
1633
return false;
1634
case GLOB_NOMATCH:
1635
error(0, errno, "There are no question files in %s", dirname);
1636
return false;
1637
case GLOB_NOSPACE:
1638
error(0, errno, "Could not allocate memory for question file"
1639
" names in %s", dirname);
1640
#if __GNUC__ < 7
1641
/* FALLTHROUGH */
1642
#else
1643
__attribute__((fallthrough));
1644
#endif
1645
case 0:
1646
for(size_t i = 0; i < question_filenames.gl_pathc; i++){
1647
char *const question_filename = strdup(question_filenames
1648
.gl_pathv[i]);
1649
const task_context task = {
1650
.func=open_and_parse_question,
1651
.epoll_fd=epoll_fd,
1652
.question_filename=question_filename,
1653
.filename=question_filename,
1654
.password=password,
1655
.cancelled_filenames=cancelled_filenames,
1656
.current_time=current_time,
1657
.mandos_client_exited=mandos_client_exited,
1658
.password_is_read=password_is_read,
1659
};
1660
1661
if(question_filename == NULL
1662
or not add_to_queue(queue, task)){
1663
error(0, errno, "Failed to add open_and_parse_question for"
1664
" file %s to queue",
1665
question_filenames.gl_pathv[i]);
1666
free(question_filename);
1667
} else {
1668
queue->next_run = 1;
1669
}
1670
}
1671
return true;
1672
}
1673
}
1674
1675
__attribute__((nonnull, warn_unused_result))
1676
bool wait_for_event(const int epoll_fd,
1677
const mono_microsecs queue_next_run,
1678
const mono_microsecs current_time){
1679
__attribute__((const))
1680
int milliseconds_to_wait(const mono_microsecs currtime,
1681
const mono_microsecs nextrun){
1682
if(currtime >= nextrun){
1683
return 0;
1684
}
1685
const uintmax_t wait_time_ms = (nextrun - currtime) / 1000;
1686
if(wait_time_ms > (uintmax_t)INT_MAX){
1687
return INT_MAX;
1688
}
1689
return (int)wait_time_ms;
1690
}
1691
1692
const int wait_time_ms = milliseconds_to_wait(current_time,
1693
queue_next_run);
1694
1695
/* Prepare unblocking of SIGCHLD during epoll_pwait */
1696
sigset_t temporary_unblocked_sigmask;
1697
/* Get current signal mask */
1698
if(pthread_sigmask(-1, NULL, &temporary_unblocked_sigmask) != 0){
1699
return false;
1700
}
1701
/* Remove SIGCHLD from the signal mask */
1702
if(sigdelset(&temporary_unblocked_sigmask, SIGCHLD) != 0){
1703
return false;
1704
}
1705
struct epoll_event events[8]; /* Ignored */
1706
int ret = epoll_pwait(epoll_fd, events,
1707
sizeof(events) / sizeof(struct epoll_event),
1708
queue_next_run == 0 ? -1 : (int)wait_time_ms,
1709
&temporary_unblocked_sigmask);
1710
if(ret < 0 and errno != EINTR){
1711
error(0, errno, "Failed epoll_pwait(epfd=%d, ..., timeout=%d,"
1712
" ...", epoll_fd,
1713
queue_next_run == 0 ? -1 : (int)wait_time_ms);
1714
return false;
1715
}
1716
return clear_all_fds_from_epoll_set(epoll_fd);
1717
}
1718
1719
bool clear_all_fds_from_epoll_set(const int epoll_fd){
1720
/* Create a new empty epoll set */
1721
__attribute__((cleanup(cleanup_close)))
1722
const int new_epoll_fd = epoll_create1(EPOLL_CLOEXEC);
1723
if(new_epoll_fd < 0){
1724
return false;
1725
}
1726
/* dup3() the new epoll set fd over the old one, replacing it */
1727
if(dup3(new_epoll_fd, epoll_fd, O_CLOEXEC) < 0){
1728
return false;
1729
}
1730
return true;
1731
}
1732
1733
__attribute__((nonnull, warn_unused_result))
1734
bool run_queue(task_queue **const queue,
1735
string_set *const cancelled_filenames,
1736
bool *const quit_now){
1737
1738
task_queue *new_queue = create_queue();
1739
if(new_queue == NULL){
1740
return false;
1741
}
1742
1743
__attribute__((cleanup(string_set_clear)))
1744
string_set old_cancelled_filenames = {};
1745
string_set_swap(cancelled_filenames, &old_cancelled_filenames);
1746
1747
/* Declare i outside the for loop, since we might need i after the
1748
loop in case we aborted in the middle */
1749
size_t i;
1750
for(i=0; i < (*queue)->length and not *quit_now; i++){
1751
task_context *const task = &((*queue)->tasks[i]);
1752
const char *const question_filename = task->question_filename;
1753
/* Skip any task referencing a cancelled question filename */
1754
if(question_filename != NULL
1755
and string_set_contains(old_cancelled_filenames,
1756
question_filename)){
1757
cleanup_task(task);
1758
continue;
1759
}
1760
task->func(*task, new_queue);
1761
}
1762
1763
if(*quit_now){
1764
/* we might be in the middle of the queue, so clean up any
1765
remaining tasks in the current queue */
1766
for(; i < (*queue)->length; i++){
1767
cleanup_task(&((*queue)->tasks[i]));
1768
}
1769
free_queue(*queue);
1770
*queue = new_queue;
1771
new_queue = NULL;
1772
return false;
1773
}
1774
free_queue(*queue);
1775
*queue = new_queue;
1776
new_queue = NULL;
1777
1778
return true;
1779
}
1780
1781
/* End of regular code section */
1782
1783
/* Start of tests section; here are the tests for the above code */
1784
1785
/* This "fixture" data structure is used by the test setup and
1786
teardown functions */
1787
typedef struct {
1788
struct sigaction orig_sigaction;
1789
sigset_t orig_sigmask;
1790
} test_fixture;
1791
1792
static void test_setup(test_fixture *fixture,
1793
__attribute__((unused))
1794
gconstpointer user_data){
1795
g_assert_true(setup_signal_handler(&fixture->orig_sigaction));
1796
g_assert_true(block_sigchld(&fixture->orig_sigmask));
1797
}
1798
1799
static void test_teardown(test_fixture *fixture,
1800
__attribute__((unused))
1801
gconstpointer user_data){
1802
g_assert_true(restore_signal_handler(&fixture->orig_sigaction));
1803
g_assert_true(restore_sigmask(&fixture->orig_sigmask));
1804
}
1805
1806
/* Utility function used by tests to search queue for matching task */
1807
__attribute__((pure, nonnull, warn_unused_result))
1808
static task_context *find_matching_task(const task_queue *const queue,
1809
const task_context task){
1810
/* The argument "task" structure is a pattern to match; 0 in any
1811
member means any value matches, otherwise the value must match.
1812
The filename strings are compared by strcmp(), not by pointer. */
1813
for(size_t i = 0; i < queue->length; i++){
1814
task_context *const current_task = queue->tasks+i;
1815
/* Check all members of task_context, if set to a non-zero value.
1816
If a member does not match, continue to next task in queue */
1817
1818
/* task_func *const func */
1819
if(task.func != NULL and current_task->func != task.func){
1820
continue;
1821
}
1822
/* char *const question_filename; */
1823
if(task.question_filename != NULL
1824
and (current_task->question_filename == NULL
1825
or strcmp(current_task->question_filename,
1826
task.question_filename) != 0)){
1827
continue;
1828
}
1829
/* const pid_t pid; */
1830
if(task.pid != 0 and current_task->pid != task.pid){
1831
continue;
1832
}
1833
/* const int epoll_fd; */
1834
if(task.epoll_fd != 0
1835
and current_task->epoll_fd != task.epoll_fd){
1836
continue;
1837
}
1838
/* bool *const quit_now; */
1839
if(task.quit_now != NULL
1840
and current_task->quit_now != task.quit_now){
1841
continue;
1842
}
1843
/* const int fd; */
1844
if(task.fd != 0 and current_task->fd != task.fd){
1845
continue;
1846
}
1847
/* bool *const mandos_client_exited; */
1848
if(task.mandos_client_exited != NULL
1849
and current_task->mandos_client_exited
1850
!= task.mandos_client_exited){
1851
continue;
1852
}
1853
/* buffer *const password; */
1854
if(task.password != NULL
1855
and current_task->password != task.password){
1856
continue;
1857
}
1858
/* bool *const password_is_read; */
1859
if(task.password_is_read != NULL
1860
and current_task->password_is_read != task.password_is_read){
1861
continue;
1862
}
1863
/* char *filename; */
1864
if(task.filename != NULL
1865
and (current_task->filename == NULL
1866
or strcmp(current_task->filename, task.filename) != 0)){
1867
continue;
1868
}
1869
/* string_set *const cancelled_filenames; */
1870
if(task.cancelled_filenames != NULL
1871
and current_task->cancelled_filenames
1872
!= task.cancelled_filenames){
1873
continue;
1874
}
1875
/* const mono_microsecs notafter; */
1876
if(task.notafter != 0
1877
and current_task->notafter != task.notafter){
1878
continue;
1879
}
1880
/* const mono_microsecs *const current_time; */
1881
if(task.current_time != NULL
1882
and current_task->current_time != task.current_time){
1883
continue;
1884
}
1885
/* Current task matches all members; return it */
1886
return current_task;
1887
}
1888
/* No task in queue matches passed pattern task */
1889
return NULL;
1890
}
1891
1892
static void test_create_queue(__attribute__((unused))
1893
test_fixture *fixture,
1894
__attribute__((unused))
1895
gconstpointer user_data){
1896
__attribute__((cleanup(cleanup_queue)))
1897
task_queue *const queue = create_queue();
1898
g_assert_nonnull(queue);
1899
g_assert_null(queue->tasks);
1900
g_assert_true(queue->length == 0);
1901
g_assert_true(queue->next_run == 0);
1902
}
1903
1904
static task_func dummy_func;
1905
1906
static void test_add_to_queue(__attribute__((unused))
1907
test_fixture *fixture,
1908
__attribute__((unused))
1909
gconstpointer user_data){
1910
__attribute__((cleanup(cleanup_queue)))
1911
task_queue *queue = create_queue();
1912
g_assert_nonnull(queue);
1913
1914
g_assert_true(add_to_queue(queue,
1915
(task_context){ .func=dummy_func }));
1916
g_assert_true(queue->length == 1);
1917
g_assert_nonnull(queue->tasks);
1918
g_assert_true(queue->tasks[0].func == dummy_func);
1919
}
1920
1921
static void test_add_to_queue_overflow(__attribute__((unused))
1922
test_fixture *fixture,
1923
__attribute__((unused))
1924
gconstpointer user_data){
1925
__attribute__((cleanup(cleanup_queue)))
1926
task_queue *queue = create_queue();
1927
g_assert_nonnull(queue);
1928
g_assert_true(queue->length == 0);
1929
queue->length = SIZE_MAX / sizeof(task_context); /* fake max size */
1930
1931
FILE *real_stderr = stderr;
1932
FILE *devnull = fopen("/dev/null", "we");
1933
g_assert_nonnull(devnull);
1934
stderr = devnull;
1935
const bool ret = add_to_queue(queue,
1936
(task_context){ .func=dummy_func });
1937
g_assert_true(errno == ENOMEM);
1938
g_assert_false(ret);
1939
stderr = real_stderr;
1940
g_assert_cmpint(fclose(devnull), ==, 0);
1941
queue->length = 0; /* Restore real size */
1942
}
1943
1944
static void dummy_func(__attribute__((unused))
1945
const task_context task,
1946
__attribute__((unused))
1947
task_queue *const queue){
1948
}
1949
1950
static void test_queue_has_question_empty(__attribute__((unused))
1951
test_fixture *fixture,
1952
__attribute__((unused))
1953
gconstpointer user_data){
1954
__attribute__((cleanup(cleanup_queue)))
1955
task_queue *queue = create_queue();
1956
g_assert_nonnull(queue);
1957
g_assert_false(queue_has_question(queue));
1958
}
1959
1960
static void test_queue_has_question_false(__attribute__((unused))
1961
test_fixture *fixture,
1962
__attribute__((unused))
1963
gconstpointer user_data){
1964
__attribute__((cleanup(cleanup_queue)))
1965
task_queue *queue = create_queue();
1966
g_assert_nonnull(queue);
1967
g_assert_true(add_to_queue(queue,
1968
(task_context){ .func=dummy_func }));
1969
g_assert_false(queue_has_question(queue));
1970
}
1971
1972
static void test_queue_has_question_true(__attribute__((unused))
1973
test_fixture *fixture,
1974
__attribute__((unused))
1975
gconstpointer user_data){
1976
__attribute__((cleanup(cleanup_queue)))
1977
task_queue *queue = create_queue();
1978
g_assert_nonnull(queue);
1979
char *const question_filename
1980
= strdup("/nonexistent/question_filename");
1981
g_assert_nonnull(question_filename);
1982
task_context task = {
1983
.func=dummy_func,
1984
.question_filename=question_filename,
1985
};
1986
g_assert_true(add_to_queue(queue, task));
1987
g_assert_true(queue_has_question(queue));
1988
}
1989
1990
static void test_queue_has_question_false2(__attribute__((unused))
1991
test_fixture *fixture,
1992
__attribute__((unused))
1993
gconstpointer user_data){
1994
__attribute__((cleanup(cleanup_queue)))
1995
task_queue *queue = create_queue();
1996
g_assert_nonnull(queue);
1997
task_context task = { .func=dummy_func };
1998
g_assert_true(add_to_queue(queue, task));
1999
g_assert_true(add_to_queue(queue, task));
2000
g_assert_cmpint((int)queue->length, ==, 2);
2001
g_assert_false(queue_has_question(queue));
2002
}
2003
2004
static void test_queue_has_question_true2(__attribute__((unused))
2005
test_fixture *fixture,
2006
__attribute__((unused))
2007
gconstpointer user_data){
2008
__attribute__((cleanup(cleanup_queue)))
2009
task_queue *queue = create_queue();
2010
g_assert_nonnull(queue);
2011
task_context task1 = { .func=dummy_func };
2012
g_assert_true(add_to_queue(queue, task1));
2013
char *const question_filename
2014
= strdup("/nonexistent/question_filename");
2015
g_assert_nonnull(question_filename);
2016
task_context task2 = {
2017
.func=dummy_func,
2018
.question_filename=question_filename,
2019
};
2020
g_assert_true(add_to_queue(queue, task2));
2021
g_assert_cmpint((int)queue->length, ==, 2);
2022
g_assert_true(queue_has_question(queue));
2023
}
2024
2025
static void test_cleanup_buffer(__attribute__((unused))
2026
test_fixture *fixture,
2027
__attribute__((unused))
2028
gconstpointer user_data){
2029
buffer buf = {};
2030
2031
const size_t buffersize = 10;
2032
2033
buf.data = malloc(buffersize);
2034
g_assert_nonnull(buf.data);
2035
if(mlock(buf.data, buffersize) != 0){
2036
g_assert_true(errno == EPERM or errno == ENOMEM);
2037
}
2038
2039
cleanup_buffer(&buf);
2040
g_assert_null(buf.data);
2041
}
2042
2043
static
2044
void test_string_set_new_set_contains_nothing(__attribute__((unused))
2045
test_fixture *fixture,
2046
__attribute__((unused))
2047
gconstpointer
2048
user_data){
2049
__attribute__((cleanup(string_set_clear)))
2050
string_set set = {};
2051
g_assert_false(string_set_contains(set, "")); /* Empty string */
2052
g_assert_false(string_set_contains(set, "test_string"));
2053
}
2054
2055
static void
2056
test_string_set_with_added_string_contains_it(__attribute__((unused))
2057
test_fixture *fixture,
2058
__attribute__((unused))
2059
gconstpointer
2060
user_data){
2061
__attribute__((cleanup(string_set_clear)))
2062
string_set set = {};
2063
g_assert_true(string_set_add(&set, "test_string"));
2064
g_assert_true(string_set_contains(set, "test_string"));
2065
}
2066
2067
static void
2068
test_string_set_cleared_does_not_contain_str(__attribute__((unused))
2069
test_fixture *fixture,
2070
__attribute__((unused))
2071
gconstpointer user_data){
2072
__attribute__((cleanup(string_set_clear)))
2073
string_set set = {};
2074
g_assert_true(string_set_add(&set, "test_string"));
2075
string_set_clear(&set);
2076
g_assert_false(string_set_contains(set, "test_string"));
2077
}
2078
2079
static
2080
void test_string_set_swap_one_with_empty(__attribute__((unused))
2081
test_fixture *fixture,
2082
__attribute__((unused))
2083
gconstpointer user_data){
2084
__attribute__((cleanup(string_set_clear)))
2085
string_set set1 = {};
2086
__attribute__((cleanup(string_set_clear)))
2087
string_set set2 = {};
2088
g_assert_true(string_set_add(&set1, "test_string1"));
2089
string_set_swap(&set1, &set2);
2090
g_assert_false(string_set_contains(set1, "test_string1"));
2091
g_assert_true(string_set_contains(set2, "test_string1"));
2092
}
2093
2094
static
2095
void test_string_set_swap_empty_with_one(__attribute__((unused))
2096
test_fixture *fixture,
2097
__attribute__((unused))
2098
gconstpointer user_data){
2099
__attribute__((cleanup(string_set_clear)))
2100
string_set set1 = {};
2101
__attribute__((cleanup(string_set_clear)))
2102
string_set set2 = {};
2103
g_assert_true(string_set_add(&set2, "test_string2"));
2104
string_set_swap(&set1, &set2);
2105
g_assert_true(string_set_contains(set1, "test_string2"));
2106
g_assert_false(string_set_contains(set2, "test_string2"));
2107
}
2108
2109
static void test_string_set_swap_one_with_one(__attribute__((unused))
2110
test_fixture *fixture,
2111
__attribute__((unused))
2112
gconstpointer
2113
user_data){
2114
__attribute__((cleanup(string_set_clear)))
2115
string_set set1 = {};
2116
__attribute__((cleanup(string_set_clear)))
2117
string_set set2 = {};
2118
g_assert_true(string_set_add(&set1, "test_string1"));
2119
g_assert_true(string_set_add(&set2, "test_string2"));
2120
string_set_swap(&set1, &set2);
2121
g_assert_false(string_set_contains(set1, "test_string1"));
2122
g_assert_true(string_set_contains(set1, "test_string2"));
2123
g_assert_false(string_set_contains(set2, "test_string2"));
2124
g_assert_true(string_set_contains(set2, "test_string1"));
2125
}
2126
2127
static bool fd_has_cloexec_and_nonblock(const int);
2128
2129
static bool epoll_set_contains(int, int, uint32_t);
2130
2131
static void test_start_mandos_client(test_fixture *fixture,
2132
__attribute__((unused))
2133
gconstpointer user_data){
2134
2135
bool mandos_client_exited = false;
2136
bool quit_now = false;
2137
__attribute__((cleanup(cleanup_close)))
2138
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2139
g_assert_cmpint(epoll_fd, >=, 0);
2140
__attribute__((cleanup(cleanup_queue)))
2141
task_queue *queue = create_queue();
2142
g_assert_nonnull(queue);
2143
buffer password = {};
2144
bool password_is_read = false;
2145
const char helper_directory[] = "/nonexistent";
2146
const char *const argv[] = { "/bin/true", NULL };
2147
2148
g_assert_true(start_mandos_client(queue, epoll_fd,
2149
&mandos_client_exited, &quit_now,
2150
&password, &password_is_read,
2151
&fixture->orig_sigaction,
2152
fixture->orig_sigmask,
2153
helper_directory, 0, 0, argv));
2154
2155
g_assert_cmpuint((unsigned int)queue->length, >=, 2);
2156
2157
const task_context *const added_wait_task
2158
= find_matching_task(queue, (task_context){
2159
.func=wait_for_mandos_client_exit,
2160
.mandos_client_exited=&mandos_client_exited,
2161
.quit_now=&quit_now,
2162
});
2163
g_assert_nonnull(added_wait_task);
2164
g_assert_cmpint(added_wait_task->pid, >, 0);
2165
g_assert_cmpint(kill(added_wait_task->pid, SIGKILL), ==, 0);
2166
waitpid(added_wait_task->pid, NULL, 0);
2167
2168
const task_context *const added_read_task
2169
= find_matching_task(queue, (task_context){
2170
.func=read_mandos_client_output,
2171
.epoll_fd=epoll_fd,
2172
.password=&password,
2173
.password_is_read=&password_is_read,
2174
.quit_now=&quit_now,
2175
});
2176
g_assert_nonnull(added_read_task);
2177
g_assert_cmpint(added_read_task->fd, >, 2);
2178
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
2179
g_assert_true(epoll_set_contains(epoll_fd, added_read_task->fd,
2180
EPOLLIN | EPOLLRDHUP));
2181
}
2182
2183
static bool fd_has_cloexec_and_nonblock(const int fd){
2184
const int socket_fd_flags = fcntl(fd, F_GETFD, 0);
2185
const int socket_file_flags = fcntl(fd, F_GETFL, 0);
2186
return ((socket_fd_flags >= 0)
2187
and (socket_fd_flags & FD_CLOEXEC)
2188
and (socket_file_flags >= 0)
2189
and (socket_file_flags & O_NONBLOCK));
2190
}
2191
2192
__attribute__((const))
2193
bool is_privileged(void){
2194
uid_t user = getuid() + 1;
2195
if(user == 0){ /* Overflow check */
2196
user++;
2197
}
2198
gid_t group = getuid() + 1;
2199
if(group == 0){ /* Overflow check */
2200
group++;
2201
}
2202
const pid_t pid = fork();
2203
if(pid == 0){ /* Child */
2204
if(setresgid((uid_t)-1, group, group) == -1){
2205
if(errno != EPERM){
2206
error(EXIT_FAILURE, errno, "Failed to setresgid(-1, %" PRIuMAX
2207
", %" PRIuMAX")", (uintmax_t)group, (uintmax_t)group);
2208
}
2209
exit(EXIT_FAILURE);
2210
}
2211
if(setresuid((uid_t)-1, user, user) == -1){
2212
if(errno != EPERM){
2213
error(EXIT_FAILURE, errno, "Failed to setresuid(-1, %" PRIuMAX
2214
", %" PRIuMAX")", (uintmax_t)user, (uintmax_t)user);
2215
}
2216
exit(EXIT_FAILURE);
2217
}
2218
exit(EXIT_SUCCESS);
2219
}
2220
if(pid == -1){
2221
error(EXIT_FAILURE, errno, "Failed to fork()");
2222
}
2223
2224
int status;
2225
waitpid(pid, &status, 0);
2226
if(WIFEXITED(status) and (WEXITSTATUS(status) == EXIT_SUCCESS)){
2227
return true;
2228
}
2229
return false;
2230
}
2231
2232
static bool epoll_set_contains(int epoll_fd, int fd, uint32_t events){
2233
/* Only scan for events in this eventmask */
2234
const uint32_t eventmask = EPOLLIN | EPOLLOUT | EPOLLRDHUP;
2235
__attribute__((cleanup(cleanup_string)))
2236
char *fdinfo_name = NULL;
2237
int ret = asprintf(&fdinfo_name, "/proc/self/fdinfo/%d", epoll_fd);
2238
g_assert_cmpint(ret, >, 0);
2239
g_assert_nonnull(fdinfo_name);
2240
2241
FILE *fdinfo = fopen(fdinfo_name, "r");
2242
g_assert_nonnull(fdinfo);
2243
uint32_t reported_events;
2244
buffer line = {};
2245
int found_fd = -1;
2246
2247
do {
2248
if(getline(&line.data, &line.allocated, fdinfo) < 0){
2249
break;
2250
}
2251
/* See proc(5) for format of /proc/PID/fdinfo/FD for epoll fd's */
2252
if(sscanf(line.data, "tfd: %d events: %" SCNx32 " ",
2253
&found_fd, &reported_events) == 2){
2254
if(found_fd == fd){
2255
break;
2256
}
2257
}
2258
} while(not feof(fdinfo) and not ferror(fdinfo));
2259
g_assert_cmpint(fclose(fdinfo), ==, 0);
2260
free(line.data);
2261
if(found_fd != fd){
2262
return false;
2263
}
2264
2265
if(events == 0){
2266
/* Don't check events if none are given */
2267
return true;
2268
}
2269
return (reported_events & eventmask) == (events & eventmask);
2270
}
2271
2272
static void test_start_mandos_client_execv(test_fixture *fixture,
2273
__attribute__((unused))
2274
gconstpointer user_data){
2275
bool mandos_client_exited = false;
2276
bool quit_now = false;
2277
__attribute__((cleanup(cleanup_close)))
2278
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2279
g_assert_cmpint(epoll_fd, >=, 0);
2280
__attribute__((cleanup(cleanup_queue)))
2281
task_queue *queue = create_queue();
2282
g_assert_nonnull(queue);
2283
__attribute__((cleanup(cleanup_buffer)))
2284
buffer password = {};
2285
const char helper_directory[] = "/nonexistent";
2286
/* Can't execv("/", ...), so this should fail */
2287
const char *const argv[] = { "/", NULL };
2288
2289
{
2290
__attribute__((cleanup(cleanup_close)))
2291
const int devnull_fd = open("/dev/null",
2292
O_WRONLY | O_CLOEXEC | O_NOCTTY);
2293
g_assert_cmpint(devnull_fd, >=, 0);
2294
__attribute__((cleanup(cleanup_close)))
2295
const int real_stderr_fd = dup(STDERR_FILENO);
2296
g_assert_cmpint(real_stderr_fd, >=, 0);
2297
dup2(devnull_fd, STDERR_FILENO);
2298
2299
const bool success = start_mandos_client(queue, epoll_fd,
2300
&mandos_client_exited,
2301
&quit_now,
2302
&password,
2303
(bool[]){false},
2304
&fixture->orig_sigaction,
2305
fixture->orig_sigmask,
2306
helper_directory, 0, 0,
2307
argv);
2308
dup2(real_stderr_fd, STDERR_FILENO);
2309
g_assert_true(success);
2310
}
2311
g_assert_cmpuint((unsigned int)queue->length, ==, 2);
2312
2313
struct timespec starttime, currtime;
2314
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2315
do {
2316
queue->next_run = 0;
2317
string_set cancelled_filenames = {};
2318
2319
{
2320
__attribute__((cleanup(cleanup_close)))
2321
const int devnull_fd = open("/dev/null",
2322
O_WRONLY | O_CLOEXEC | O_NOCTTY);
2323
g_assert_cmpint(devnull_fd, >=, 0);
2324
__attribute__((cleanup(cleanup_close)))
2325
const int real_stderr_fd = dup(STDERR_FILENO);
2326
g_assert_cmpint(real_stderr_fd, >=, 0);
2327
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2328
dup2(devnull_fd, STDERR_FILENO);
2329
const bool success = run_queue(&queue, &cancelled_filenames,
2330
&quit_now);
2331
dup2(real_stderr_fd, STDERR_FILENO);
2332
if(not success){
2333
break;
2334
}
2335
}
2336
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2337
} while(((queue->length) > 0)
2338
and (not quit_now)
2339
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2340
2341
g_assert_true(quit_now);
2342
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2343
g_assert_true(mandos_client_exited);
2344
}
2345
2346
static void test_start_mandos_client_suid_euid(test_fixture *fixture,
2347
__attribute__((unused))
2348
gconstpointer
2349
user_data){
2350
if(not is_privileged()){
2351
g_test_skip("Not privileged");
2352
return;
2353
}
2354
2355
bool mandos_client_exited = false;
2356
bool quit_now = false;
2357
__attribute__((cleanup(cleanup_close)))
2358
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2359
g_assert_cmpint(epoll_fd, >=, 0);
2360
__attribute__((cleanup(cleanup_queue)))
2361
task_queue *queue = create_queue();
2362
g_assert_nonnull(queue);
2363
__attribute__((cleanup(cleanup_buffer)))
2364
buffer password = {};
2365
bool password_is_read = false;
2366
const char helper_directory[] = "/nonexistent";
2367
const char *const argv[] = { "/usr/bin/id", "--user", NULL };
2368
uid_t user = 1000;
2369
gid_t group = 1001;
2370
2371
const bool success = start_mandos_client(queue, epoll_fd,
2372
&mandos_client_exited,
2373
&quit_now, &password,
2374
&password_is_read,
2375
&fixture->orig_sigaction,
2376
fixture->orig_sigmask,
2377
helper_directory, user,
2378
group, argv);
2379
g_assert_true(success);
2380
g_assert_cmpuint((unsigned int)queue->length, >, 0);
2381
2382
struct timespec starttime, currtime;
2383
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2384
do {
2385
queue->next_run = 0;
2386
string_set cancelled_filenames = {};
2387
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2388
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2389
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2390
} while(((queue->length) > 0)
2391
and (not quit_now)
2392
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2393
2394
g_assert_false(quit_now);
2395
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2396
g_assert_true(mandos_client_exited);
2397
2398
g_assert_true(password_is_read);
2399
g_assert_nonnull(password.data);
2400
2401
uintmax_t id;
2402
g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),
2403
==, 1);
2404
g_assert_true((uid_t)id == id);
2405
2406
g_assert_cmpuint((unsigned int)id, ==, 0);
2407
}
2408
2409
static void test_start_mandos_client_suid_egid(test_fixture *fixture,
2410
__attribute__((unused))
2411
gconstpointer
2412
user_data){
2413
if(not is_privileged()){
2414
g_test_skip("Not privileged");
2415
return;
2416
}
2417
2418
bool mandos_client_exited = false;
2419
bool quit_now = false;
2420
__attribute__((cleanup(cleanup_close)))
2421
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2422
g_assert_cmpint(epoll_fd, >=, 0);
2423
__attribute__((cleanup(cleanup_queue)))
2424
task_queue *queue = create_queue();
2425
g_assert_nonnull(queue);
2426
__attribute__((cleanup(cleanup_buffer)))
2427
buffer password = {};
2428
bool password_is_read = false;
2429
const char helper_directory[] = "/nonexistent";
2430
const char *const argv[] = { "/usr/bin/id", "--group", NULL };
2431
uid_t user = 1000;
2432
gid_t group = 1001;
2433
2434
const bool success = start_mandos_client(queue, epoll_fd,
2435
&mandos_client_exited,
2436
&quit_now, &password,
2437
&password_is_read,
2438
&fixture->orig_sigaction,
2439
fixture->orig_sigmask,
2440
helper_directory, user,
2441
group, argv);
2442
g_assert_true(success);
2443
g_assert_cmpuint((unsigned int)queue->length, >, 0);
2444
2445
struct timespec starttime, currtime;
2446
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2447
do {
2448
queue->next_run = 0;
2449
string_set cancelled_filenames = {};
2450
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2451
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2452
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2453
} while(((queue->length) > 0)
2454
and (not quit_now)
2455
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2456
2457
g_assert_false(quit_now);
2458
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2459
g_assert_true(mandos_client_exited);
2460
2461
g_assert_true(password_is_read);
2462
g_assert_nonnull(password.data);
2463
2464
uintmax_t id;
2465
g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),
2466
==, 1);
2467
g_assert_true((gid_t)id == id);
2468
2469
g_assert_cmpuint((unsigned int)id, ==, 0);
2470
}
2471
2472
static void test_start_mandos_client_suid_ruid(test_fixture *fixture,
2473
__attribute__((unused))
2474
gconstpointer
2475
user_data){
2476
if(not is_privileged()){
2477
g_test_skip("Not privileged");
2478
return;
2479
}
2480
2481
bool mandos_client_exited = false;
2482
bool quit_now = false;
2483
__attribute__((cleanup(cleanup_close)))
2484
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2485
g_assert_cmpint(epoll_fd, >=, 0);
2486
__attribute__((cleanup(cleanup_queue)))
2487
task_queue *queue = create_queue();
2488
g_assert_nonnull(queue);
2489
__attribute__((cleanup(cleanup_buffer)))
2490
buffer password = {};
2491
bool password_is_read = false;
2492
const char helper_directory[] = "/nonexistent";
2493
const char *const argv[] = { "/usr/bin/id", "--user", "--real",
2494
NULL };
2495
uid_t user = 1000;
2496
gid_t group = 1001;
2497
2498
const bool success = start_mandos_client(queue, epoll_fd,
2499
&mandos_client_exited,
2500
&quit_now, &password,
2501
&password_is_read,
2502
&fixture->orig_sigaction,
2503
fixture->orig_sigmask,
2504
helper_directory, user,
2505
group, argv);
2506
g_assert_true(success);
2507
g_assert_cmpuint((unsigned int)queue->length, >, 0);
2508
2509
struct timespec starttime, currtime;
2510
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2511
do {
2512
queue->next_run = 0;
2513
string_set cancelled_filenames = {};
2514
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2515
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2516
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2517
} while(((queue->length) > 0)
2518
and (not quit_now)
2519
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2520
2521
g_assert_false(quit_now);
2522
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2523
g_assert_true(mandos_client_exited);
2524
2525
g_assert_true(password_is_read);
2526
g_assert_nonnull(password.data);
2527
2528
uintmax_t id;
2529
g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),
2530
==, 1);
2531
g_assert_true((uid_t)id == id);
2532
2533
g_assert_cmpuint((unsigned int)id, ==, user);
2534
}
2535
2536
static void test_start_mandos_client_suid_rgid(test_fixture *fixture,
2537
__attribute__((unused))
2538
gconstpointer
2539
user_data){
2540
if(not is_privileged()){
2541
g_test_skip("Not privileged");
2542
return;
2543
}
2544
2545
bool mandos_client_exited = false;
2546
bool quit_now = false;
2547
__attribute__((cleanup(cleanup_close)))
2548
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2549
g_assert_cmpint(epoll_fd, >=, 0);
2550
__attribute__((cleanup(cleanup_queue)))
2551
task_queue *queue = create_queue();
2552
g_assert_nonnull(queue);
2553
__attribute__((cleanup(cleanup_buffer)))
2554
buffer password = {};
2555
bool password_is_read = false;
2556
const char helper_directory[] = "/nonexistent";
2557
const char *const argv[] = { "/usr/bin/id", "--group", "--real",
2558
NULL };
2559
uid_t user = 1000;
2560
gid_t group = 1001;
2561
2562
const bool success = start_mandos_client(queue, epoll_fd,
2563
&mandos_client_exited,
2564
&quit_now, &password,
2565
&password_is_read,
2566
&fixture->orig_sigaction,
2567
fixture->orig_sigmask,
2568
helper_directory, user,
2569
group, argv);
2570
g_assert_true(success);
2571
g_assert_cmpuint((unsigned int)queue->length, >, 0);
2572
2573
struct timespec starttime, currtime;
2574
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2575
do {
2576
queue->next_run = 0;
2577
string_set cancelled_filenames = {};
2578
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2579
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2580
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2581
} while(((queue->length) > 0)
2582
and (not quit_now)
2583
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2584
2585
g_assert_false(quit_now);
2586
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2587
g_assert_true(mandos_client_exited);
2588
2589
g_assert_true(password_is_read);
2590
g_assert_nonnull(password.data);
2591
2592
uintmax_t id;
2593
g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),
2594
==, 1);
2595
g_assert_true((gid_t)id == id);
2596
2597
g_assert_cmpuint((unsigned int)id, ==, group);
2598
}
2599
2600
static void test_start_mandos_client_read(test_fixture *fixture,
2601
__attribute__((unused))
2602
gconstpointer user_data){
2603
bool mandos_client_exited = false;
2604
bool quit_now = false;
2605
__attribute__((cleanup(cleanup_close)))
2606
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2607
g_assert_cmpint(epoll_fd, >=, 0);
2608
__attribute__((cleanup(cleanup_queue)))
2609
task_queue *queue = create_queue();
2610
g_assert_nonnull(queue);
2611
__attribute__((cleanup(cleanup_buffer)))
2612
buffer password = {};
2613
bool password_is_read = false;
2614
const char dummy_test_password[] = "dummy test password";
2615
const char helper_directory[] = "/nonexistent";
2616
const char *const argv[] = { "/bin/echo", "-n", dummy_test_password,
2617
NULL };
2618
2619
const bool success = start_mandos_client(queue, epoll_fd,
2620
&mandos_client_exited,
2621
&quit_now, &password,
2622
&password_is_read,
2623
&fixture->orig_sigaction,
2624
fixture->orig_sigmask,
2625
helper_directory, 0, 0,
2626
argv);
2627
g_assert_true(success);
2628
g_assert_cmpuint((unsigned int)queue->length, >, 0);
2629
2630
struct timespec starttime, currtime;
2631
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2632
do {
2633
queue->next_run = 0;
2634
string_set cancelled_filenames = {};
2635
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2636
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2637
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2638
} while(((queue->length) > 0)
2639
and (not quit_now)
2640
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2641
2642
g_assert_false(quit_now);
2643
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2644
g_assert_true(mandos_client_exited);
2645
2646
g_assert_true(password_is_read);
2647
g_assert_cmpint((int)password.length, ==,
2648
sizeof(dummy_test_password)-1);
2649
g_assert_nonnull(password.data);
2650
g_assert_cmpint(memcmp(dummy_test_password, password.data,
2651
sizeof(dummy_test_password)-1), ==, 0);
2652
}
2653
2654
static
2655
void test_start_mandos_client_helper_directory(test_fixture *fixture,
2656
__attribute__((unused))
2657
gconstpointer
2658
user_data){
2659
bool mandos_client_exited = false;
2660
bool quit_now = false;
2661
__attribute__((cleanup(cleanup_close)))
2662
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2663
g_assert_cmpint(epoll_fd, >=, 0);
2664
__attribute__((cleanup(cleanup_queue)))
2665
task_queue *queue = create_queue();
2666
g_assert_nonnull(queue);
2667
__attribute__((cleanup(cleanup_buffer)))
2668
buffer password = {};
2669
bool password_is_read = false;
2670
const char helper_directory[] = "/nonexistent";
2671
const char *const argv[] = { "/bin/sh", "-c",
2672
"printf %s \"${MANDOSPLUGINHELPERDIR}\"", NULL };
2673
2674
const bool success = start_mandos_client(queue, epoll_fd,
2675
&mandos_client_exited,
2676
&quit_now, &password,
2677
&password_is_read,
2678
&fixture->orig_sigaction,
2679
fixture->orig_sigmask,
2680
helper_directory, 0, 0,
2681
argv);
2682
g_assert_true(success);
2683
g_assert_cmpuint((unsigned int)queue->length, >, 0);
2684
2685
struct timespec starttime, currtime;
2686
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2687
do {
2688
queue->next_run = 0;
2689
string_set cancelled_filenames = {};
2690
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2691
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2692
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2693
} while(((queue->length) > 0)
2694
and (not quit_now)
2695
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2696
2697
g_assert_false(quit_now);
2698
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2699
g_assert_true(mandos_client_exited);
2700
2701
g_assert_true(password_is_read);
2702
g_assert_cmpint((int)password.length, ==,
2703
sizeof(helper_directory)-1);
2704
g_assert_nonnull(password.data);
2705
g_assert_cmpint(memcmp(helper_directory, password.data,
2706
sizeof(helper_directory)-1), ==, 0);
2707
}
2708
2709
__attribute__((nonnull, warn_unused_result))
2710
static bool proc_status_sigblk_to_sigset(const char *const,
2711
sigset_t *const);
2712
2713
static void test_start_mandos_client_sigmask(test_fixture *fixture,
2714
__attribute__((unused))
2715
gconstpointer user_data){
2716
bool mandos_client_exited = false;
2717
bool quit_now = false;
2718
__attribute__((cleanup(cleanup_close)))
2719
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2720
g_assert_cmpint(epoll_fd, >=, 0);
2721
__attribute__((cleanup(cleanup_queue)))
2722
task_queue *queue = create_queue();
2723
g_assert_nonnull(queue);
2724
__attribute__((cleanup(cleanup_buffer)))
2725
buffer password = {};
2726
bool password_is_read = false;
2727
const char helper_directory[] = "/nonexistent";
2728
/* see proc(5) for format of /proc/self/status */
2729
const char *const argv[] = { "/usr/bin/awk",
2730
"$1==\"SigBlk:\"{ print $2 }", "/proc/self/status", NULL };
2731
2732
g_assert_true(start_mandos_client(queue, epoll_fd,
2733
&mandos_client_exited, &quit_now,
2734
&password, &password_is_read,
2735
&fixture->orig_sigaction,
2736
fixture->orig_sigmask,
2737
helper_directory, 0, 0, argv));
2738
2739
struct timespec starttime, currtime;
2740
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2741
do {
2742
queue->next_run = 0;
2743
string_set cancelled_filenames = {};
2744
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2745
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
2746
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2747
} while((not (mandos_client_exited and password_is_read))
2748
and (not quit_now)
2749
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2750
g_assert_true(mandos_client_exited);
2751
g_assert_true(password_is_read);
2752
2753
sigset_t parsed_sigmask;
2754
g_assert_true(proc_status_sigblk_to_sigset(password.data,
2755
&parsed_sigmask));
2756
2757
for(int signum = 1; signum < NSIG; signum++){
2758
const bool has_signal = sigismember(&parsed_sigmask, signum);
2759
if(sigismember(&fixture->orig_sigmask, signum)){
2760
g_assert_true(has_signal);
2761
} else {
2762
g_assert_false(has_signal);
2763
}
2764
}
2765
}
2766
2767
__attribute__((nonnull, warn_unused_result))
2768
static bool proc_status_sigblk_to_sigset(const char *const sigblk,
2769
sigset_t *const sigmask){
2770
/* parse /proc/PID/status SigBlk value and convert to a sigset_t */
2771
uintmax_t scanned_sigmask;
2772
if(sscanf(sigblk, "%" SCNxMAX " ", &scanned_sigmask) != 1){
2773
return false;
2774
}
2775
if(sigemptyset(sigmask) != 0){
2776
return false;
2777
}
2778
for(int signum = 1; signum < NSIG; signum++){
2779
if(scanned_sigmask & ((uintmax_t)1 << (signum-1))){
2780
if(sigaddset(sigmask, signum) != 0){
2781
return false;
2782
}
2783
}
2784
}
2785
return true;
2786
}
2787
2788
static void run_task_with_stderr_to_dev_null(const task_context task,
2789
task_queue *const queue);
2790
2791
static
2792
void test_wait_for_mandos_client_exit_badpid(__attribute__((unused))
2793
test_fixture *fixture,
2794
__attribute__((unused))
2795
gconstpointer user_data){
2796
2797
bool mandos_client_exited = false;
2798
bool quit_now = false;
2799
2800
__attribute__((cleanup(cleanup_queue)))
2801
task_queue *queue = create_queue();
2802
g_assert_nonnull(queue);
2803
const task_context task = {
2804
.func=wait_for_mandos_client_exit,
2805
.pid=1,
2806
.mandos_client_exited=&mandos_client_exited,
2807
.quit_now=&quit_now,
2808
};
2809
run_task_with_stderr_to_dev_null(task, queue);
2810
2811
g_assert_false(mandos_client_exited);
2812
g_assert_true(quit_now);
2813
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2814
}
2815
2816
static void run_task_with_stderr_to_dev_null(const task_context task,
2817
task_queue *const queue){
2818
FILE *real_stderr = stderr;
2819
FILE *devnull = fopen("/dev/null", "we");
2820
g_assert_nonnull(devnull);
2821
2822
stderr = devnull;
2823
task.func(task, queue);
2824
stderr = real_stderr;
2825
2826
g_assert_cmpint(fclose(devnull), ==, 0);
2827
}
2828
2829
static
2830
void test_wait_for_mandos_client_exit_noexit(test_fixture *fixture,
2831
__attribute__((unused))
2832
gconstpointer user_data){
2833
bool mandos_client_exited = false;
2834
bool quit_now = false;
2835
2836
pid_t create_eternal_process(void){
2837
const pid_t pid = fork();
2838
if(pid == 0){ /* Child */
2839
if(not restore_signal_handler(&fixture->orig_sigaction)){
2840
_exit(EXIT_FAILURE);
2841
}
2842
if(not restore_sigmask(&fixture->orig_sigmask)){
2843
_exit(EXIT_FAILURE);
2844
}
2845
while(true){
2846
pause();
2847
}
2848
}
2849
return pid;
2850
}
2851
pid_t pid = create_eternal_process();
2852
g_assert_true(pid != -1);
2853
2854
__attribute__((cleanup(cleanup_queue)))
2855
task_queue *queue = create_queue();
2856
g_assert_nonnull(queue);
2857
const task_context task = {
2858
.func=wait_for_mandos_client_exit,
2859
.pid=pid,
2860
.mandos_client_exited=&mandos_client_exited,
2861
.quit_now=&quit_now,
2862
};
2863
task.func(task, queue);
2864
2865
g_assert_false(mandos_client_exited);
2866
g_assert_false(quit_now);
2867
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
2868
2869
g_assert_nonnull(find_matching_task(queue, (task_context){
2870
.func=wait_for_mandos_client_exit,
2871
.pid=task.pid,
2872
.mandos_client_exited=&mandos_client_exited,
2873
.quit_now=&quit_now,
2874
}));
2875
}
2876
2877
static
2878
void test_wait_for_mandos_client_exit_success(test_fixture *fixture,
2879
__attribute__((unused))
2880
gconstpointer
2881
user_data){
2882
bool mandos_client_exited = false;
2883
bool quit_now = false;
2884
2885
pid_t create_successful_process(void){
2886
const pid_t pid = fork();
2887
if(pid == 0){ /* Child */
2888
if(not restore_signal_handler(&fixture->orig_sigaction)){
2889
_exit(EXIT_FAILURE);
2890
}
2891
if(not restore_sigmask(&fixture->orig_sigmask)){
2892
_exit(EXIT_FAILURE);
2893
}
2894
exit(EXIT_SUCCESS);
2895
}
2896
return pid;
2897
}
2898
const pid_t pid = create_successful_process();
2899
g_assert_true(pid != -1);
2900
2901
__attribute__((cleanup(cleanup_queue)))
2902
task_queue *queue = create_queue();
2903
g_assert_nonnull(queue);
2904
const task_context initial_task = {
2905
.func=wait_for_mandos_client_exit,
2906
.pid=pid,
2907
.mandos_client_exited=&mandos_client_exited,
2908
.quit_now=&quit_now,
2909
};
2910
g_assert_true(add_to_queue(queue, initial_task));
2911
2912
struct timespec starttime, currtime;
2913
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2914
__attribute__((cleanup(cleanup_close)))
2915
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2916
do {
2917
queue->next_run = 0;
2918
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2919
g_assert_true(run_queue(&queue, (string_set[]){{}}, &quit_now));
2920
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2921
} while((not mandos_client_exited)
2922
and (not quit_now)
2923
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2924
2925
g_assert_true(mandos_client_exited);
2926
g_assert_false(quit_now);
2927
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2928
}
2929
2930
static
2931
void test_wait_for_mandos_client_exit_failure(test_fixture *fixture,
2932
__attribute__((unused))
2933
gconstpointer
2934
user_data){
2935
bool mandos_client_exited = false;
2936
bool quit_now = false;
2937
2938
pid_t create_failing_process(void){
2939
const pid_t pid = fork();
2940
if(pid == 0){ /* Child */
2941
if(not restore_signal_handler(&fixture->orig_sigaction)){
2942
_exit(EXIT_FAILURE);
2943
}
2944
if(not restore_sigmask(&fixture->orig_sigmask)){
2945
_exit(EXIT_FAILURE);
2946
}
2947
exit(EXIT_FAILURE);
2948
}
2949
return pid;
2950
}
2951
const pid_t pid = create_failing_process();
2952
g_assert_true(pid != -1);
2953
2954
__attribute__((cleanup(string_set_clear)))
2955
string_set cancelled_filenames = {};
2956
__attribute__((cleanup(cleanup_close)))
2957
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
2958
g_assert_cmpint(epoll_fd, >=, 0);
2959
__attribute__((cleanup(cleanup_queue)))
2960
task_queue *queue = create_queue();
2961
g_assert_nonnull(queue);
2962
g_assert_true(add_to_queue(queue, (task_context){
2963
.func=wait_for_mandos_client_exit,
2964
.pid=pid,
2965
.mandos_client_exited=&mandos_client_exited,
2966
.quit_now=&quit_now,
2967
}));
2968
2969
g_assert_true(sigismember(&fixture->orig_sigmask, SIGCHLD) == 0);
2970
2971
__attribute__((cleanup(cleanup_close)))
2972
const int devnull_fd = open("/dev/null",
2973
O_WRONLY | O_CLOEXEC | O_NOCTTY);
2974
g_assert_cmpint(devnull_fd, >=, 0);
2975
__attribute__((cleanup(cleanup_close)))
2976
const int real_stderr_fd = dup(STDERR_FILENO);
2977
g_assert_cmpint(real_stderr_fd, >=, 0);
2978
2979
struct timespec starttime, currtime;
2980
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
2981
do {
2982
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
2983
dup2(devnull_fd, STDERR_FILENO);
2984
const bool success = run_queue(&queue, &cancelled_filenames,
2985
&quit_now);
2986
dup2(real_stderr_fd, STDERR_FILENO);
2987
if(not success){
2988
break;
2989
}
2990
2991
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
2992
} while((not mandos_client_exited)
2993
and (not quit_now)
2994
and ((currtime.tv_sec - starttime.tv_sec) < 10));
2995
2996
g_assert_true(quit_now);
2997
g_assert_true(mandos_client_exited);
2998
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
2999
}
3000
3001
static
3002
void test_wait_for_mandos_client_exit_killed(test_fixture *fixture,
3003
__attribute__((unused))
3004
gconstpointer user_data){
3005
bool mandos_client_exited = false;
3006
bool quit_now = false;
3007
3008
pid_t create_killed_process(void){
3009
const pid_t pid = fork();
3010
if(pid == 0){ /* Child */
3011
if(not restore_signal_handler(&fixture->orig_sigaction)){
3012
_exit(EXIT_FAILURE);
3013
}
3014
if(not restore_sigmask(&fixture->orig_sigmask)){
3015
_exit(EXIT_FAILURE);
3016
}
3017
while(true){
3018
pause();
3019
}
3020
}
3021
kill(pid, SIGKILL);
3022
return pid;
3023
}
3024
const pid_t pid = create_killed_process();
3025
g_assert_true(pid != -1);
3026
3027
__attribute__((cleanup(string_set_clear)))
3028
string_set cancelled_filenames = {};
3029
__attribute__((cleanup(cleanup_close)))
3030
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3031
g_assert_cmpint(epoll_fd, >=, 0);
3032
__attribute__((cleanup(cleanup_queue)))
3033
task_queue *queue = create_queue();
3034
g_assert_nonnull(queue);
3035
g_assert_true(add_to_queue(queue, (task_context){
3036
.func=wait_for_mandos_client_exit,
3037
.pid=pid,
3038
.mandos_client_exited=&mandos_client_exited,
3039
.quit_now=&quit_now,
3040
}));
3041
3042
__attribute__((cleanup(cleanup_close)))
3043
const int devnull_fd = open("/dev/null",
3044
O_WRONLY | O_CLOEXEC, O_NOCTTY);
3045
g_assert_cmpint(devnull_fd, >=, 0);
3046
__attribute__((cleanup(cleanup_close)))
3047
const int real_stderr_fd = dup(STDERR_FILENO);
3048
g_assert_cmpint(real_stderr_fd, >=, 0);
3049
3050
struct timespec starttime, currtime;
3051
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);
3052
do {
3053
g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));
3054
dup2(devnull_fd, STDERR_FILENO);
3055
const bool success = run_queue(&queue, &cancelled_filenames,
3056
&quit_now);
3057
dup2(real_stderr_fd, STDERR_FILENO);
3058
if(not success){
3059
break;
3060
}
3061
3062
g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);
3063
} while((not mandos_client_exited)
3064
and (not quit_now)
3065
and ((currtime.tv_sec - starttime.tv_sec) < 10));
3066
3067
g_assert_true(mandos_client_exited);
3068
g_assert_true(quit_now);
3069
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3070
}
3071
3072
static bool epoll_set_does_not_contain(int, int);
3073
3074
static
3075
void test_read_mandos_client_output_readerror(__attribute__((unused))
3076
test_fixture *fixture,
3077
__attribute__((unused))
3078
gconstpointer
3079
user_data){
3080
__attribute__((cleanup(cleanup_close)))
3081
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3082
g_assert_cmpint(epoll_fd, >=, 0);
3083
3084
__attribute__((cleanup(cleanup_buffer)))
3085
buffer password = {};
3086
3087
/* Reading /proc/self/mem from offset 0 will always give EIO */
3088
const int fd = open("/proc/self/mem",
3089
O_RDONLY | O_CLOEXEC | O_NOCTTY);
3090
3091
bool password_is_read = false;
3092
bool quit_now = false;
3093
__attribute__((cleanup(cleanup_queue)))
3094
task_queue *queue = create_queue();
3095
g_assert_nonnull(queue);
3096
3097
task_context task = {
3098
.func=read_mandos_client_output,
3099
.epoll_fd=epoll_fd,
3100
.fd=fd,
3101
.password=&password,
3102
.password_is_read=&password_is_read,
3103
.quit_now=&quit_now,
3104
};
3105
run_task_with_stderr_to_dev_null(task, queue);
3106
g_assert_false(password_is_read);
3107
g_assert_cmpint((int)password.length, ==, 0);
3108
g_assert_true(quit_now);
3109
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3110
3111
g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));
3112
3113
g_assert_cmpint(close(fd), ==, -1);
3114
}
3115
3116
static bool epoll_set_does_not_contain(int epoll_fd, int fd){
3117
return not epoll_set_contains(epoll_fd, fd, 0);
3118
}
3119
3120
static
3121
void test_read_mandos_client_output_nodata(__attribute__((unused))
3122
test_fixture *fixture,
3123
__attribute__((unused))
3124
gconstpointer user_data){
3125
__attribute__((cleanup(cleanup_close)))
3126
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3127
g_assert_cmpint(epoll_fd, >=, 0);
3128
3129
int pipefds[2];
3130
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
3131
3132
__attribute__((cleanup(cleanup_buffer)))
3133
buffer password = {};
3134
3135
bool password_is_read = false;
3136
bool quit_now = false;
3137
__attribute__((cleanup(cleanup_queue)))
3138
task_queue *queue = create_queue();
3139
g_assert_nonnull(queue);
3140
3141
task_context task = {
3142
.func=read_mandos_client_output,
3143
.epoll_fd=epoll_fd,
3144
.fd=pipefds[0],
3145
.password=&password,
3146
.password_is_read=&password_is_read,
3147
.quit_now=&quit_now,
3148
};
3149
task.func(task, queue);
3150
g_assert_false(password_is_read);
3151
g_assert_cmpint((int)password.length, ==, 0);
3152
g_assert_false(quit_now);
3153
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
3154
3155
g_assert_nonnull(find_matching_task(queue, (task_context){
3156
.func=read_mandos_client_output,
3157
.epoll_fd=epoll_fd,
3158
.fd=pipefds[0],
3159
.password=&password,
3160
.password_is_read=&password_is_read,
3161
.quit_now=&quit_now,
3162
}));
3163
3164
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
3165
EPOLLIN | EPOLLRDHUP));
3166
3167
g_assert_cmpint(close(pipefds[1]), ==, 0);
3168
}
3169
3170
static void test_read_mandos_client_output_eof(__attribute__((unused))
3171
test_fixture *fixture,
3172
__attribute__((unused))
3173
gconstpointer
3174
user_data){
3175
__attribute__((cleanup(cleanup_close)))
3176
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3177
g_assert_cmpint(epoll_fd, >=, 0);
3178
3179
int pipefds[2];
3180
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
3181
g_assert_cmpint(close(pipefds[1]), ==, 0);
3182
3183
__attribute__((cleanup(cleanup_buffer)))
3184
buffer password = {};
3185
3186
bool password_is_read = false;
3187
bool quit_now = false;
3188
__attribute__((cleanup(cleanup_queue)))
3189
task_queue *queue = create_queue();
3190
g_assert_nonnull(queue);
3191
3192
task_context task = {
3193
.func=read_mandos_client_output,
3194
.epoll_fd=epoll_fd,
3195
.fd=pipefds[0],
3196
.password=&password,
3197
.password_is_read=&password_is_read,
3198
.quit_now=&quit_now,
3199
};
3200
task.func(task, queue);
3201
g_assert_true(password_is_read);
3202
g_assert_cmpint((int)password.length, ==, 0);
3203
g_assert_false(quit_now);
3204
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3205
3206
g_assert_true(epoll_set_does_not_contain(epoll_fd, pipefds[0]));
3207
3208
g_assert_cmpint(close(pipefds[0]), ==, -1);
3209
}
3210
3211
static
3212
void test_read_mandos_client_output_once(__attribute__((unused))
3213
test_fixture *fixture,
3214
__attribute__((unused))
3215
gconstpointer user_data){
3216
__attribute__((cleanup(cleanup_close)))
3217
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3218
g_assert_cmpint(epoll_fd, >=, 0);
3219
3220
int pipefds[2];
3221
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
3222
3223
const char dummy_test_password[] = "dummy test password";
3224
/* Start with a pre-allocated buffer */
3225
__attribute__((cleanup(cleanup_buffer)))
3226
buffer password = {
3227
.data=malloc(sizeof(dummy_test_password)),
3228
.length=0,
3229
.allocated=sizeof(dummy_test_password),
3230
};
3231
g_assert_nonnull(password.data);
3232
if(mlock(password.data, password.allocated) != 0){
3233
g_assert_true(errno == EPERM or errno == ENOMEM);
3234
}
3235
3236
bool password_is_read = false;
3237
bool quit_now = false;
3238
__attribute__((cleanup(cleanup_queue)))
3239
task_queue *queue = create_queue();
3240
g_assert_nonnull(queue);
3241
3242
g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);
3243
g_assert_cmpint((int)write(pipefds[1], dummy_test_password,
3244
sizeof(dummy_test_password)),
3245
==, (int)sizeof(dummy_test_password));
3246
3247
task_context task = {
3248
.func=read_mandos_client_output,
3249
.epoll_fd=epoll_fd,
3250
.fd=pipefds[0],
3251
.password=&password,
3252
.password_is_read=&password_is_read,
3253
.quit_now=&quit_now,
3254
};
3255
task.func(task, queue);
3256
3257
g_assert_false(password_is_read);
3258
g_assert_cmpint((int)password.length, ==,
3259
(int)sizeof(dummy_test_password));
3260
g_assert_nonnull(password.data);
3261
g_assert_cmpint(memcmp(password.data, dummy_test_password,
3262
sizeof(dummy_test_password)), ==, 0);
3263
3264
g_assert_false(quit_now);
3265
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
3266
3267
g_assert_nonnull(find_matching_task(queue, (task_context){
3268
.func=read_mandos_client_output,
3269
.epoll_fd=epoll_fd,
3270
.fd=pipefds[0],
3271
.password=&password,
3272
.password_is_read=&password_is_read,
3273
.quit_now=&quit_now,
3274
}));
3275
3276
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
3277
EPOLLIN | EPOLLRDHUP));
3278
3279
g_assert_cmpint(close(pipefds[1]), ==, 0);
3280
}
3281
3282
static
3283
void test_read_mandos_client_output_malloc(__attribute__((unused))
3284
test_fixture *fixture,
3285
__attribute__((unused))
3286
gconstpointer user_data){
3287
__attribute__((cleanup(cleanup_close)))
3288
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3289
g_assert_cmpint(epoll_fd, >=, 0);
3290
3291
int pipefds[2];
3292
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
3293
3294
const char dummy_test_password[] = "dummy test password";
3295
/* Start with an empty buffer */
3296
__attribute__((cleanup(cleanup_buffer)))
3297
buffer password = {};
3298
3299
bool password_is_read = false;
3300
bool quit_now = false;
3301
__attribute__((cleanup(cleanup_queue)))
3302
task_queue *queue = create_queue();
3303
g_assert_nonnull(queue);
3304
3305
g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);
3306
g_assert_cmpint((int)write(pipefds[1], dummy_test_password,
3307
sizeof(dummy_test_password)),
3308
==, (int)sizeof(dummy_test_password));
3309
3310
task_context task = {
3311
.func=read_mandos_client_output,
3312
.epoll_fd=epoll_fd,
3313
.fd=pipefds[0],
3314
.password=&password,
3315
.password_is_read=&password_is_read,
3316
.quit_now=&quit_now,
3317
};
3318
task.func(task, queue);
3319
3320
g_assert_false(password_is_read);
3321
g_assert_cmpint((int)password.length, ==,
3322
(int)sizeof(dummy_test_password));
3323
g_assert_nonnull(password.data);
3324
g_assert_cmpint(memcmp(password.data, dummy_test_password,
3325
sizeof(dummy_test_password)), ==, 0);
3326
3327
g_assert_false(quit_now);
3328
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
3329
3330
g_assert_nonnull(find_matching_task(queue, (task_context){
3331
.func=read_mandos_client_output,
3332
.epoll_fd=epoll_fd,
3333
.fd=pipefds[0],
3334
.password=&password,
3335
.password_is_read=&password_is_read,
3336
.quit_now=&quit_now,
3337
}));
3338
3339
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
3340
EPOLLIN | EPOLLRDHUP));
3341
3342
g_assert_cmpint(close(pipefds[1]), ==, 0);
3343
}
3344
3345
static
3346
void test_read_mandos_client_output_append(__attribute__((unused))
3347
test_fixture *fixture,
3348
__attribute__((unused))
3349
gconstpointer user_data){
3350
__attribute__((cleanup(cleanup_close)))
3351
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3352
g_assert_cmpint(epoll_fd, >=, 0);
3353
3354
int pipefds[2];
3355
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
3356
3357
const char dummy_test_password[] = "dummy test password";
3358
__attribute__((cleanup(cleanup_buffer)))
3359
buffer password = {
3360
.data=malloc(PIPE_BUF),
3361
.length=PIPE_BUF,
3362
.allocated=PIPE_BUF,
3363
};
3364
g_assert_nonnull(password.data);
3365
if(mlock(password.data, password.allocated) != 0){
3366
g_assert_true(errno == EPERM or errno == ENOMEM);
3367
}
3368
3369
memset(password.data, 'x', PIPE_BUF);
3370
char password_expected[PIPE_BUF];
3371
memcpy(password_expected, password.data, PIPE_BUF);
3372
3373
bool password_is_read = false;
3374
bool quit_now = false;
3375
__attribute__((cleanup(cleanup_queue)))
3376
task_queue *queue = create_queue();
3377
g_assert_nonnull(queue);
3378
3379
g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);
3380
g_assert_cmpint((int)write(pipefds[1], dummy_test_password,
3381
sizeof(dummy_test_password)),
3382
==, (int)sizeof(dummy_test_password));
3383
3384
task_context task = {
3385
.func=read_mandos_client_output,
3386
.epoll_fd=epoll_fd,
3387
.fd=pipefds[0],
3388
.password=&password,
3389
.password_is_read=&password_is_read,
3390
.quit_now=&quit_now,
3391
};
3392
task.func(task, queue);
3393
3394
g_assert_false(password_is_read);
3395
g_assert_cmpint((int)password.length, ==,
3396
PIPE_BUF + sizeof(dummy_test_password));
3397
g_assert_nonnull(password.data);
3398
g_assert_cmpint(memcmp(password_expected, password.data, PIPE_BUF),
3399
==, 0);
3400
g_assert_cmpint(memcmp(password.data + PIPE_BUF,
3401
dummy_test_password,
3402
sizeof(dummy_test_password)), ==, 0);
3403
g_assert_false(quit_now);
3404
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
3405
3406
g_assert_nonnull(find_matching_task(queue, (task_context){
3407
.func=read_mandos_client_output,
3408
.epoll_fd=epoll_fd,
3409
.fd=pipefds[0],
3410
.password=&password,
3411
.password_is_read=&password_is_read,
3412
.quit_now=&quit_now,
3413
}));
3414
3415
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
3416
EPOLLIN | EPOLLRDHUP));
3417
}
3418
3419
static char *make_temporary_directory(void);
3420
3421
static void test_add_inotify_dir_watch(__attribute__((unused))
3422
test_fixture *fixture,
3423
__attribute__((unused))
3424
gconstpointer user_data){
3425
__attribute__((cleanup(cleanup_close)))
3426
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3427
g_assert_cmpint(epoll_fd, >=, 0);
3428
__attribute__((cleanup(cleanup_queue)))
3429
task_queue *queue = create_queue();
3430
g_assert_nonnull(queue);
3431
__attribute__((cleanup(string_set_clear)))
3432
string_set cancelled_filenames = {};
3433
const mono_microsecs current_time = 0;
3434
3435
bool quit_now = false;
3436
buffer password = {};
3437
bool mandos_client_exited = false;
3438
bool password_is_read = false;
3439
3440
__attribute__((cleanup(cleanup_string)))
3441
char *tempdir = make_temporary_directory();
3442
g_assert_nonnull(tempdir);
3443
3444
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3445
&password, tempdir,
3446
&cancelled_filenames,
3447
¤t_time,
3448
&mandos_client_exited,
3449
&password_is_read));
3450
3451
g_assert_cmpuint((unsigned int)queue->length, >, 0);
3452
3453
const task_context *const added_read_task
3454
= find_matching_task(queue, (task_context){
3455
.func=read_inotify_event,
3456
.epoll_fd=epoll_fd,
3457
.quit_now=&quit_now,
3458
.password=&password,
3459
.filename=tempdir,
3460
.cancelled_filenames=&cancelled_filenames,
3461
.current_time=¤t_time,
3462
.mandos_client_exited=&mandos_client_exited,
3463
.password_is_read=&password_is_read,
3464
});
3465
g_assert_nonnull(added_read_task);
3466
3467
g_assert_cmpint(added_read_task->fd, >, 2);
3468
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
3469
g_assert_true(epoll_set_contains(added_read_task->epoll_fd,
3470
added_read_task->fd,
3471
EPOLLIN | EPOLLRDHUP));
3472
3473
g_assert_cmpint(rmdir(tempdir), ==, 0);
3474
}
3475
3476
static char *make_temporary_directory(void){
3477
char *name = strdup("/tmp/mandosXXXXXX");
3478
g_assert_nonnull(name);
3479
char *result = mkdtemp(name);
3480
if(result == NULL){
3481
free(name);
3482
}
3483
return result;
3484
}
3485
3486
static void test_add_inotify_dir_watch_fail(__attribute__((unused))
3487
test_fixture *fixture,
3488
__attribute__((unused))
3489
gconstpointer user_data){
3490
__attribute__((cleanup(cleanup_close)))
3491
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3492
g_assert_cmpint(epoll_fd, >=, 0);
3493
__attribute__((cleanup(cleanup_queue)))
3494
task_queue *queue = create_queue();
3495
g_assert_nonnull(queue);
3496
__attribute__((cleanup(string_set_clear)))
3497
string_set cancelled_filenames = {};
3498
const mono_microsecs current_time = 0;
3499
3500
bool quit_now = false;
3501
buffer password = {};
3502
bool mandos_client_exited = false;
3503
bool password_is_read = false;
3504
3505
const char nonexistent_dir[] = "/nonexistent";
3506
3507
FILE *real_stderr = stderr;
3508
FILE *devnull = fopen("/dev/null", "we");
3509
g_assert_nonnull(devnull);
3510
stderr = devnull;
3511
g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3512
&password, nonexistent_dir,
3513
&cancelled_filenames,
3514
¤t_time,
3515
&mandos_client_exited,
3516
&password_is_read));
3517
stderr = real_stderr;
3518
g_assert_cmpint(fclose(devnull), ==, 0);
3519
3520
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3521
}
3522
3523
static void test_add_inotify_dir_watch_nondir(__attribute__((unused))
3524
test_fixture *fixture,
3525
__attribute__((unused))
3526
gconstpointer
3527
user_data){
3528
__attribute__((cleanup(cleanup_close)))
3529
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3530
g_assert_cmpint(epoll_fd, >=, 0);
3531
__attribute__((cleanup(cleanup_queue)))
3532
task_queue *queue = create_queue();
3533
g_assert_nonnull(queue);
3534
__attribute__((cleanup(string_set_clear)))
3535
string_set cancelled_filenames = {};
3536
const mono_microsecs current_time = 0;
3537
3538
bool quit_now = false;
3539
buffer password = {};
3540
bool mandos_client_exited = false;
3541
bool password_is_read = false;
3542
3543
const char not_a_directory[] = "/dev/tty";
3544
3545
FILE *real_stderr = stderr;
3546
FILE *devnull = fopen("/dev/null", "we");
3547
g_assert_nonnull(devnull);
3548
stderr = devnull;
3549
g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3550
&password, not_a_directory,
3551
&cancelled_filenames,
3552
¤t_time,
3553
&mandos_client_exited,
3554
&password_is_read));
3555
stderr = real_stderr;
3556
g_assert_cmpint(fclose(devnull), ==, 0);
3557
3558
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3559
}
3560
3561
static void test_add_inotify_dir_watch_EAGAIN(__attribute__((unused))
3562
test_fixture *fixture,
3563
__attribute__((unused))
3564
gconstpointer
3565
user_data){
3566
__attribute__((cleanup(cleanup_close)))
3567
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3568
g_assert_cmpint(epoll_fd, >=, 0);
3569
__attribute__((cleanup(cleanup_queue)))
3570
task_queue *queue = create_queue();
3571
g_assert_nonnull(queue);
3572
__attribute__((cleanup(string_set_clear)))
3573
string_set cancelled_filenames = {};
3574
const mono_microsecs current_time = 0;
3575
3576
bool quit_now = false;
3577
buffer password = {};
3578
bool mandos_client_exited = false;
3579
bool password_is_read = false;
3580
3581
__attribute__((cleanup(cleanup_string)))
3582
char *tempdir = make_temporary_directory();
3583
g_assert_nonnull(tempdir);
3584
3585
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3586
&password, tempdir,
3587
&cancelled_filenames,
3588
¤t_time,
3589
&mandos_client_exited,
3590
&password_is_read));
3591
3592
g_assert_cmpuint((unsigned int)queue->length, >, 0);
3593
3594
const task_context *const added_read_task
3595
= find_matching_task(queue,
3596
(task_context){ .func=read_inotify_event });
3597
g_assert_nonnull(added_read_task);
3598
3599
g_assert_cmpint(added_read_task->fd, >, 2);
3600
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
3601
3602
/* "sufficient to read at least one event." - inotify(7) */
3603
const size_t ievent_size = (sizeof(struct inotify_event)
3604
+ NAME_MAX + 1);
3605
struct inotify_event *ievent = malloc(ievent_size);
3606
g_assert_nonnull(ievent);
3607
3608
g_assert_cmpint(read(added_read_task->fd, ievent, ievent_size), ==,
3609
-1);
3610
g_assert_cmpint(errno, ==, EAGAIN);
3611
3612
free(ievent);
3613
3614
g_assert_cmpint(rmdir(tempdir), ==, 0);
3615
}
3616
3617
static char *make_temporary_file_in_directory(const char
3618
*const dir);
3619
3620
static
3621
void test_add_inotify_dir_watch_IN_CLOSE_WRITE(__attribute__((unused))
3622
test_fixture *fixture,
3623
__attribute__((unused))
3624
gconstpointer
3625
user_data){
3626
__attribute__((cleanup(cleanup_close)))
3627
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3628
g_assert_cmpint(epoll_fd, >=, 0);
3629
__attribute__((cleanup(cleanup_queue)))
3630
task_queue *queue = create_queue();
3631
g_assert_nonnull(queue);
3632
__attribute__((cleanup(string_set_clear)))
3633
string_set cancelled_filenames = {};
3634
const mono_microsecs current_time = 0;
3635
3636
bool quit_now = false;
3637
buffer password = {};
3638
bool mandos_client_exited = false;
3639
bool password_is_read = false;
3640
3641
__attribute__((cleanup(cleanup_string)))
3642
char *tempdir = make_temporary_directory();
3643
g_assert_nonnull(tempdir);
3644
3645
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3646
&password, tempdir,
3647
&cancelled_filenames,
3648
¤t_time,
3649
&mandos_client_exited,
3650
&password_is_read));
3651
3652
g_assert_cmpuint((unsigned int)queue->length, >, 0);
3653
3654
const task_context *const added_read_task
3655
= find_matching_task(queue,
3656
(task_context){ .func=read_inotify_event });
3657
g_assert_nonnull(added_read_task);
3658
3659
g_assert_cmpint(added_read_task->fd, >, 2);
3660
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
3661
3662
__attribute__((cleanup(cleanup_string)))
3663
char *filename = make_temporary_file_in_directory(tempdir);
3664
g_assert_nonnull(filename);
3665
3666
/* "sufficient to read at least one event." - inotify(7) */
3667
const size_t ievent_size = (sizeof(struct inotify_event)
3668
+ NAME_MAX + 1);
3669
struct inotify_event *ievent = malloc(ievent_size);
3670
g_assert_nonnull(ievent);
3671
3672
ssize_t read_size = 0;
3673
read_size = read(added_read_task->fd, ievent, ievent_size);
3674
3675
g_assert_cmpint((int)read_size, >, 0);
3676
g_assert_true(ievent->mask & IN_CLOSE_WRITE);
3677
g_assert_cmpstr(ievent->name, ==, basename(filename));
3678
3679
free(ievent);
3680
3681
g_assert_cmpint(unlink(filename), ==, 0);
3682
g_assert_cmpint(rmdir(tempdir), ==, 0);
3683
}
3684
3685
static char *make_temporary_prefixed_file_in_directory(const char
3686
*const prefix,
3687
const char
3688
*const dir){
3689
char *filename = NULL;
3690
g_assert_cmpint(asprintf(&filename, "%s/%sXXXXXX", dir, prefix),
3691
>, 0);
3692
g_assert_nonnull(filename);
3693
const int fd = mkostemp(filename, O_CLOEXEC);
3694
g_assert_cmpint(fd, >=, 0);
3695
g_assert_cmpint(close(fd), ==, 0);
3696
return filename;
3697
}
3698
3699
static char *make_temporary_file_in_directory(const char
3700
*const dir){
3701
return make_temporary_prefixed_file_in_directory("temp", dir);
3702
}
3703
3704
static
3705
void test_add_inotify_dir_watch_IN_MOVED_TO(__attribute__((unused))
3706
test_fixture *fixture,
3707
__attribute__((unused))
3708
gconstpointer user_data){
3709
__attribute__((cleanup(cleanup_close)))
3710
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3711
g_assert_cmpint(epoll_fd, >=, 0);
3712
__attribute__((cleanup(cleanup_queue)))
3713
task_queue *queue = create_queue();
3714
g_assert_nonnull(queue);
3715
__attribute__((cleanup(string_set_clear)))
3716
string_set cancelled_filenames = {};
3717
const mono_microsecs current_time = 0;
3718
3719
bool quit_now = false;
3720
buffer password = {};
3721
bool mandos_client_exited = false;
3722
bool password_is_read = false;
3723
3724
__attribute__((cleanup(cleanup_string)))
3725
char *watchdir = make_temporary_directory();
3726
g_assert_nonnull(watchdir);
3727
3728
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3729
&password, watchdir,
3730
&cancelled_filenames,
3731
¤t_time,
3732
&mandos_client_exited,
3733
&password_is_read));
3734
3735
g_assert_cmpuint((unsigned int)queue->length, >, 0);
3736
3737
const task_context *const added_read_task
3738
= find_matching_task(queue,
3739
(task_context){ .func=read_inotify_event });
3740
g_assert_nonnull(added_read_task);
3741
3742
g_assert_cmpint(added_read_task->fd, >, 2);
3743
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
3744
3745
char *sourcedir = make_temporary_directory();
3746
g_assert_nonnull(sourcedir);
3747
3748
__attribute__((cleanup(cleanup_string)))
3749
char *filename = make_temporary_file_in_directory(sourcedir);
3750
g_assert_nonnull(filename);
3751
3752
__attribute__((cleanup(cleanup_string)))
3753
char *targetfilename = NULL;
3754
g_assert_cmpint(asprintf(&targetfilename, "%s/%s", watchdir,
3755
basename(filename)), >, 0);
3756
g_assert_nonnull(targetfilename);
3757
3758
g_assert_cmpint(rename(filename, targetfilename), ==, 0);
3759
g_assert_cmpint(rmdir(sourcedir), ==, 0);
3760
free(sourcedir);
3761
3762
/* "sufficient to read at least one event." - inotify(7) */
3763
const size_t ievent_size = (sizeof(struct inotify_event)
3764
+ NAME_MAX + 1);
3765
struct inotify_event *ievent = malloc(ievent_size);
3766
g_assert_nonnull(ievent);
3767
3768
ssize_t read_size = read(added_read_task->fd, ievent, ievent_size);
3769
3770
g_assert_cmpint((int)read_size, >, 0);
3771
g_assert_true(ievent->mask & IN_MOVED_TO);
3772
g_assert_cmpstr(ievent->name, ==, basename(targetfilename));
3773
3774
free(ievent);
3775
3776
g_assert_cmpint(unlink(targetfilename), ==, 0);
3777
g_assert_cmpint(rmdir(watchdir), ==, 0);
3778
}
3779
3780
static
3781
void test_add_inotify_dir_watch_IN_MOVED_FROM(__attribute__((unused))
3782
test_fixture *fixture,
3783
__attribute__((unused))
3784
gconstpointer
3785
user_data){
3786
__attribute__((cleanup(cleanup_close)))
3787
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3788
g_assert_cmpint(epoll_fd, >=, 0);
3789
__attribute__((cleanup(cleanup_queue)))
3790
task_queue *queue = create_queue();
3791
g_assert_nonnull(queue);
3792
__attribute__((cleanup(string_set_clear)))
3793
string_set cancelled_filenames = {};
3794
const mono_microsecs current_time = 0;
3795
3796
bool quit_now = false;
3797
buffer password = {};
3798
bool mandos_client_exited = false;
3799
bool password_is_read = false;
3800
3801
__attribute__((cleanup(cleanup_string)))
3802
char *tempdir = make_temporary_directory();
3803
g_assert_nonnull(tempdir);
3804
3805
__attribute__((cleanup(cleanup_string)))
3806
char *tempfilename = make_temporary_file_in_directory(tempdir);
3807
g_assert_nonnull(tempfilename);
3808
3809
__attribute__((cleanup(cleanup_string)))
3810
char *targetdir = make_temporary_directory();
3811
g_assert_nonnull(targetdir);
3812
3813
__attribute__((cleanup(cleanup_string)))
3814
char *targetfilename = NULL;
3815
g_assert_cmpint(asprintf(&targetfilename, "%s/%s", targetdir,
3816
basename(tempfilename)), >, 0);
3817
g_assert_nonnull(targetfilename);
3818
3819
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3820
&password, tempdir,
3821
&cancelled_filenames,
3822
¤t_time,
3823
&mandos_client_exited,
3824
&password_is_read));
3825
3826
g_assert_cmpint(rename(tempfilename, targetfilename), ==, 0);
3827
3828
const task_context *const added_read_task
3829
= find_matching_task(queue,
3830
(task_context){ .func=read_inotify_event });
3831
g_assert_nonnull(added_read_task);
3832
3833
/* "sufficient to read at least one event." - inotify(7) */
3834
const size_t ievent_size = (sizeof(struct inotify_event)
3835
+ NAME_MAX + 1);
3836
struct inotify_event *ievent = malloc(ievent_size);
3837
g_assert_nonnull(ievent);
3838
3839
ssize_t 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_MOVED_FROM);
3843
g_assert_cmpstr(ievent->name, ==, basename(tempfilename));
3844
3845
free(ievent);
3846
3847
g_assert_cmpint(unlink(targetfilename), ==, 0);
3848
g_assert_cmpint(rmdir(targetdir), ==, 0);
3849
g_assert_cmpint(rmdir(tempdir), ==, 0);
3850
}
3851
3852
static
3853
void test_add_inotify_dir_watch_IN_DELETE(__attribute__((unused))
3854
test_fixture *fixture,
3855
__attribute__((unused))
3856
gconstpointer user_data){
3857
__attribute__((cleanup(cleanup_close)))
3858
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3859
g_assert_cmpint(epoll_fd, >=, 0);
3860
__attribute__((cleanup(cleanup_queue)))
3861
task_queue *queue = create_queue();
3862
g_assert_nonnull(queue);
3863
__attribute__((cleanup(string_set_clear)))
3864
string_set cancelled_filenames = {};
3865
const mono_microsecs current_time = 0;
3866
3867
bool quit_now = false;
3868
buffer password = {};
3869
bool mandos_client_exited = false;
3870
bool password_is_read = false;
3871
3872
__attribute__((cleanup(cleanup_string)))
3873
char *tempdir = make_temporary_directory();
3874
g_assert_nonnull(tempdir);
3875
3876
__attribute__((cleanup(cleanup_string)))
3877
char *tempfile = make_temporary_file_in_directory(tempdir);
3878
g_assert_nonnull(tempfile);
3879
3880
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3881
&password, tempdir,
3882
&cancelled_filenames,
3883
¤t_time,
3884
&mandos_client_exited,
3885
&password_is_read));
3886
g_assert_cmpint(unlink(tempfile), ==, 0);
3887
3888
g_assert_cmpuint((unsigned int)queue->length, >, 0);
3889
3890
const task_context *const added_read_task
3891
= find_matching_task(queue,
3892
(task_context){ .func=read_inotify_event });
3893
g_assert_nonnull(added_read_task);
3894
3895
g_assert_cmpint(added_read_task->fd, >, 2);
3896
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
3897
3898
/* "sufficient to read at least one event." - inotify(7) */
3899
const size_t ievent_size = (sizeof(struct inotify_event)
3900
+ NAME_MAX + 1);
3901
struct inotify_event *ievent = malloc(ievent_size);
3902
g_assert_nonnull(ievent);
3903
3904
ssize_t read_size = 0;
3905
read_size = read(added_read_task->fd, ievent, ievent_size);
3906
3907
g_assert_cmpint((int)read_size, >, 0);
3908
g_assert_true(ievent->mask & IN_DELETE);
3909
g_assert_cmpstr(ievent->name, ==, basename(tempfile));
3910
3911
free(ievent);
3912
3913
g_assert_cmpint(rmdir(tempdir), ==, 0);
3914
}
3915
3916
static
3917
void test_add_inotify_dir_watch_IN_EXCL_UNLINK(__attribute__((unused))
3918
test_fixture *fixture,
3919
__attribute__((unused))
3920
gconstpointer
3921
user_data){
3922
__attribute__((cleanup(cleanup_close)))
3923
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3924
g_assert_cmpint(epoll_fd, >=, 0);
3925
__attribute__((cleanup(cleanup_queue)))
3926
task_queue *queue = create_queue();
3927
g_assert_nonnull(queue);
3928
__attribute__((cleanup(string_set_clear)))
3929
string_set cancelled_filenames = {};
3930
const mono_microsecs current_time = 0;
3931
3932
bool quit_now = false;
3933
buffer password = {};
3934
bool mandos_client_exited = false;
3935
bool password_is_read = false;
3936
3937
__attribute__((cleanup(cleanup_string)))
3938
char *tempdir = make_temporary_directory();
3939
g_assert_nonnull(tempdir);
3940
3941
__attribute__((cleanup(cleanup_string)))
3942
char *tempfile = make_temporary_file_in_directory(tempdir);
3943
g_assert_nonnull(tempfile);
3944
int tempfile_fd = open(tempfile, O_WRONLY | O_CLOEXEC | O_NOCTTY
3945
| O_NOFOLLOW);
3946
g_assert_cmpint(tempfile_fd, >, 2);
3947
3948
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3949
&password, tempdir,
3950
&cancelled_filenames,
3951
¤t_time,
3952
&mandos_client_exited,
3953
&password_is_read));
3954
g_assert_cmpint(unlink(tempfile), ==, 0);
3955
3956
g_assert_cmpuint((unsigned int)queue->length, >, 0);
3957
3958
const task_context *const added_read_task
3959
= find_matching_task(queue,
3960
(task_context){ .func=read_inotify_event });
3961
g_assert_nonnull(added_read_task);
3962
3963
g_assert_cmpint(added_read_task->fd, >, 2);
3964
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
3965
3966
/* "sufficient to read at least one event." - inotify(7) */
3967
const size_t ievent_size = (sizeof(struct inotify_event)
3968
+ NAME_MAX + 1);
3969
struct inotify_event *ievent = malloc(ievent_size);
3970
g_assert_nonnull(ievent);
3971
3972
ssize_t read_size = 0;
3973
read_size = read(added_read_task->fd, ievent, ievent_size);
3974
3975
g_assert_cmpint((int)read_size, >, 0);
3976
g_assert_true(ievent->mask & IN_DELETE);
3977
g_assert_cmpstr(ievent->name, ==, basename(tempfile));
3978
3979
g_assert_cmpint(close(tempfile_fd), ==, 0);
3980
3981
/* IN_EXCL_UNLINK should make the closing of the previously unlinked
3982
file not appear as an ievent, so we should not see it now. */
3983
read_size = read(added_read_task->fd, ievent, ievent_size);
3984
g_assert_cmpint((int)read_size, ==, -1);
3985
g_assert_true(errno == EAGAIN);
3986
3987
free(ievent);
3988
3989
g_assert_cmpint(rmdir(tempdir), ==, 0);
3990
}
3991
3992
static void test_read_inotify_event_readerror(__attribute__((unused))
3993
test_fixture *fixture,
3994
__attribute__((unused))
3995
gconstpointer
3996
user_data){
3997
__attribute__((cleanup(cleanup_close)))
3998
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3999
g_assert_cmpint(epoll_fd, >=, 0);
4000
const mono_microsecs current_time = 0;
4001
4002
/* Reading /proc/self/mem from offset 0 will always result in EIO */
4003
const int fd = open("/proc/self/mem",
4004
O_RDONLY | O_CLOEXEC | O_NOCTTY);
4005
4006
bool quit_now = false;
4007
__attribute__((cleanup(cleanup_queue)))
4008
task_queue *queue = create_queue();
4009
g_assert_nonnull(queue);
4010
4011
task_context task = {
4012
.func=read_inotify_event,
4013
.epoll_fd=epoll_fd,
4014
.fd=fd,
4015
.quit_now=&quit_now,
4016
.filename=strdup("/nonexistent"),
4017
.cancelled_filenames = &(string_set){},
4018
.notafter=0,
4019
.current_time=¤t_time,
4020
};
4021
g_assert_nonnull(task.filename);
4022
run_task_with_stderr_to_dev_null(task, queue);
4023
g_assert_true(quit_now);
4024
g_assert_true(queue->next_run == 0);
4025
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
4026
4027
g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));
4028
4029
g_assert_cmpint(close(fd), ==, -1);
4030
}
4031
4032
static void test_read_inotify_event_bad_epoll(__attribute__((unused))
4033
test_fixture *fixture,
4034
__attribute__((unused))
4035
gconstpointer
4036
user_data){
4037
const mono_microsecs current_time = 17;
4038
4039
int pipefds[2];
4040
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4041
const int epoll_fd = pipefds[0]; /* This will obviously fail */
4042
4043
bool quit_now = false;
4044
buffer password = {};
4045
bool mandos_client_exited = false;
4046
bool password_is_read = false;
4047
__attribute__((cleanup(cleanup_queue)))
4048
task_queue *queue = create_queue();
4049
g_assert_nonnull(queue);
4050
4051
task_context task = {
4052
.func=read_inotify_event,
4053
.epoll_fd=epoll_fd,
4054
.fd=pipefds[0],
4055
.quit_now=&quit_now,
4056
.password=&password,
4057
.filename=strdup("/nonexistent"),
4058
.cancelled_filenames = &(string_set){},
4059
.notafter=0,
4060
.current_time=¤t_time,
4061
.mandos_client_exited=&mandos_client_exited,
4062
.password_is_read=&password_is_read,
4063
};
4064
g_assert_nonnull(task.filename);
4065
run_task_with_stderr_to_dev_null(task, queue);
4066
4067
g_assert_nonnull(find_matching_task(queue, task));
4068
g_assert_true(queue->next_run == 1000000 + current_time);
4069
4070
g_assert_cmpint(close(pipefds[0]), ==, 0);
4071
g_assert_cmpint(close(pipefds[1]), ==, 0);
4072
}
4073
4074
static void test_read_inotify_event_nodata(__attribute__((unused))
4075
test_fixture *fixture,
4076
__attribute__((unused))
4077
gconstpointer user_data){
4078
__attribute__((cleanup(cleanup_close)))
4079
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4080
g_assert_cmpint(epoll_fd, >=, 0);
4081
const mono_microsecs current_time = 0;
4082
4083
int pipefds[2];
4084
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4085
4086
bool quit_now = false;
4087
buffer password = {};
4088
bool mandos_client_exited = false;
4089
bool password_is_read = false;
4090
__attribute__((cleanup(cleanup_queue)))
4091
task_queue *queue = create_queue();
4092
g_assert_nonnull(queue);
4093
4094
task_context task = {
4095
.func=read_inotify_event,
4096
.epoll_fd=epoll_fd,
4097
.fd=pipefds[0],
4098
.quit_now=&quit_now,
4099
.password=&password,
4100
.filename=strdup("/nonexistent"),
4101
.cancelled_filenames = &(string_set){},
4102
.notafter=0,
4103
.current_time=¤t_time,
4104
.mandos_client_exited=&mandos_client_exited,
4105
.password_is_read=&password_is_read,
4106
};
4107
g_assert_nonnull(task.filename);
4108
task.func(task, queue);
4109
g_assert_false(quit_now);
4110
g_assert_true(queue->next_run == 0);
4111
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4112
4113
g_assert_nonnull(find_matching_task(queue, (task_context){
4114
.func=read_inotify_event,
4115
.epoll_fd=epoll_fd,
4116
.fd=pipefds[0],
4117
.quit_now=&quit_now,
4118
.password=&password,
4119
.filename=task.filename,
4120
.cancelled_filenames=task.cancelled_filenames,
4121
.current_time=¤t_time,
4122
.mandos_client_exited=&mandos_client_exited,
4123
.password_is_read=&password_is_read,
4124
}));
4125
4126
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4127
EPOLLIN | EPOLLRDHUP));
4128
4129
g_assert_cmpint(close(pipefds[1]), ==, 0);
4130
}
4131
4132
static void test_read_inotify_event_eof(__attribute__((unused))
4133
test_fixture *fixture,
4134
__attribute__((unused))
4135
gconstpointer user_data){
4136
__attribute__((cleanup(cleanup_close)))
4137
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4138
g_assert_cmpint(epoll_fd, >=, 0);
4139
const mono_microsecs current_time = 0;
4140
4141
int pipefds[2];
4142
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4143
g_assert_cmpint(close(pipefds[1]), ==, 0);
4144
4145
bool quit_now = false;
4146
buffer password = {};
4147
__attribute__((cleanup(cleanup_queue)))
4148
task_queue *queue = create_queue();
4149
g_assert_nonnull(queue);
4150
4151
task_context task = {
4152
.func=read_inotify_event,
4153
.epoll_fd=epoll_fd,
4154
.fd=pipefds[0],
4155
.quit_now=&quit_now,
4156
.password=&password,
4157
.filename=strdup("/nonexistent"),
4158
.cancelled_filenames = &(string_set){},
4159
.notafter=0,
4160
.current_time=¤t_time,
4161
};
4162
run_task_with_stderr_to_dev_null(task, queue);
4163
g_assert_true(quit_now);
4164
g_assert_true(queue->next_run == 0);
4165
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
4166
4167
g_assert_true(epoll_set_does_not_contain(epoll_fd, pipefds[0]));
4168
4169
g_assert_cmpint(close(pipefds[0]), ==, -1);
4170
}
4171
4172
static
4173
void test_read_inotify_event_IN_CLOSE_WRITE(__attribute__((unused))
4174
test_fixture *fixture,
4175
__attribute__((unused))
4176
gconstpointer user_data){
4177
__attribute__((cleanup(cleanup_close)))
4178
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4179
g_assert_cmpint(epoll_fd, >=, 0);
4180
const mono_microsecs current_time = 0;
4181
4182
int pipefds[2];
4183
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4184
4185
/* "sufficient to read at least one event." - inotify(7) */
4186
const size_t ievent_max_size = (sizeof(struct inotify_event)
4187
+ NAME_MAX + 1);
4188
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4189
struct {
4190
struct inotify_event event;
4191
char name_buffer[NAME_MAX + 1];
4192
} ievent_buffer;
4193
struct inotify_event *const ievent = &ievent_buffer.event;
4194
4195
const char dummy_file_name[] = "ask.dummy_file_name";
4196
ievent->mask = IN_CLOSE_WRITE;
4197
ievent->len = sizeof(dummy_file_name);
4198
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4199
const size_t ievent_size = (sizeof(struct inotify_event)
4200
+ sizeof(dummy_file_name));
4201
#if defined(__GNUC__) and __GNUC__ >= 11
4202
#pragma GCC diagnostic push
4203
/* ievent is pointing into a struct which is of sufficient size */
4204
#pragma GCC diagnostic ignored "-Wstringop-overread"
4205
#endif
4206
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4207
==, ievent_size);
4208
#if defined(__GNUC__) and __GNUC__ >= 11
4209
#pragma GCC diagnostic pop
4210
#endif
4211
g_assert_cmpint(close(pipefds[1]), ==, 0);
4212
4213
bool quit_now = false;
4214
buffer password = {};
4215
bool mandos_client_exited = false;
4216
bool password_is_read = false;
4217
__attribute__((cleanup(cleanup_queue)))
4218
task_queue *queue = create_queue();
4219
g_assert_nonnull(queue);
4220
4221
task_context task = {
4222
.func=read_inotify_event,
4223
.epoll_fd=epoll_fd,
4224
.fd=pipefds[0],
4225
.quit_now=&quit_now,
4226
.password=&password,
4227
.filename=strdup("/nonexistent"),
4228
.cancelled_filenames = &(string_set){},
4229
.notafter=0,
4230
.current_time=¤t_time,
4231
.mandos_client_exited=&mandos_client_exited,
4232
.password_is_read=&password_is_read,
4233
};
4234
task.func(task, queue);
4235
g_assert_false(quit_now);
4236
g_assert_true(queue->next_run != 0);
4237
g_assert_cmpuint((unsigned int)queue->length, >=, 1);
4238
4239
g_assert_nonnull(find_matching_task(queue, (task_context){
4240
.func=read_inotify_event,
4241
.epoll_fd=epoll_fd,
4242
.fd=pipefds[0],
4243
.quit_now=&quit_now,
4244
.password=&password,
4245
.filename=task.filename,
4246
.cancelled_filenames=task.cancelled_filenames,
4247
.current_time=¤t_time,
4248
.mandos_client_exited=&mandos_client_exited,
4249
.password_is_read=&password_is_read,
4250
}));
4251
4252
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4253
EPOLLIN | EPOLLRDHUP));
4254
4255
g_assert_cmpuint((unsigned int)queue->length, >=, 2);
4256
4257
__attribute__((cleanup(cleanup_string)))
4258
char *filename = NULL;
4259
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4260
dummy_file_name), >, 0);
4261
g_assert_nonnull(filename);
4262
g_assert_nonnull(find_matching_task(queue, (task_context){
4263
.func=open_and_parse_question,
4264
.epoll_fd=epoll_fd,
4265
.filename=filename,
4266
.question_filename=filename,
4267
.password=&password,
4268
.cancelled_filenames=task.cancelled_filenames,
4269
.current_time=¤t_time,
4270
.mandos_client_exited=&mandos_client_exited,
4271
.password_is_read=&password_is_read,
4272
}));
4273
}
4274
4275
static
4276
void test_read_inotify_event_IN_MOVED_TO(__attribute__((unused))
4277
test_fixture *fixture,
4278
__attribute__((unused))
4279
gconstpointer user_data){
4280
__attribute__((cleanup(cleanup_close)))
4281
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4282
g_assert_cmpint(epoll_fd, >=, 0);
4283
const mono_microsecs current_time = 0;
4284
4285
int pipefds[2];
4286
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4287
4288
/* "sufficient to read at least one event." - inotify(7) */
4289
const size_t ievent_max_size = (sizeof(struct inotify_event)
4290
+ NAME_MAX + 1);
4291
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4292
struct {
4293
struct inotify_event event;
4294
char name_buffer[NAME_MAX + 1];
4295
} ievent_buffer;
4296
struct inotify_event *const ievent = &ievent_buffer.event;
4297
4298
const char dummy_file_name[] = "ask.dummy_file_name";
4299
ievent->mask = IN_MOVED_TO;
4300
ievent->len = sizeof(dummy_file_name);
4301
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4302
const size_t ievent_size = (sizeof(struct inotify_event)
4303
+ sizeof(dummy_file_name));
4304
#if defined(__GNUC__) and __GNUC__ >= 11
4305
#pragma GCC diagnostic push
4306
/* ievent is pointing into a struct which is of sufficient size */
4307
#pragma GCC diagnostic ignored "-Wstringop-overread"
4308
#endif
4309
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4310
==, ievent_size);
4311
#if defined(__GNUC__) and __GNUC__ >= 11
4312
#pragma GCC diagnostic pop
4313
#endif
4314
g_assert_cmpint(close(pipefds[1]), ==, 0);
4315
4316
bool quit_now = false;
4317
buffer password = {};
4318
bool mandos_client_exited = false;
4319
bool password_is_read = false;
4320
__attribute__((cleanup(cleanup_queue)))
4321
task_queue *queue = create_queue();
4322
g_assert_nonnull(queue);
4323
4324
task_context task = {
4325
.func=read_inotify_event,
4326
.epoll_fd=epoll_fd,
4327
.fd=pipefds[0],
4328
.quit_now=&quit_now,
4329
.password=&password,
4330
.filename=strdup("/nonexistent"),
4331
.cancelled_filenames = &(string_set){},
4332
.notafter=0,
4333
.current_time=¤t_time,
4334
.mandos_client_exited=&mandos_client_exited,
4335
.password_is_read=&password_is_read,
4336
};
4337
task.func(task, queue);
4338
g_assert_false(quit_now);
4339
g_assert_true(queue->next_run != 0);
4340
g_assert_cmpuint((unsigned int)queue->length, >=, 1);
4341
4342
g_assert_nonnull(find_matching_task(queue, (task_context){
4343
.func=read_inotify_event,
4344
.epoll_fd=epoll_fd,
4345
.fd=pipefds[0],
4346
.quit_now=&quit_now,
4347
.password=&password,
4348
.filename=task.filename,
4349
.cancelled_filenames=task.cancelled_filenames,
4350
.current_time=¤t_time,
4351
.mandos_client_exited=&mandos_client_exited,
4352
.password_is_read=&password_is_read,
4353
}));
4354
4355
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4356
EPOLLIN | EPOLLRDHUP));
4357
4358
g_assert_cmpuint((unsigned int)queue->length, >=, 2);
4359
4360
__attribute__((cleanup(cleanup_string)))
4361
char *filename = NULL;
4362
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4363
dummy_file_name), >, 0);
4364
g_assert_nonnull(filename);
4365
g_assert_nonnull(find_matching_task(queue, (task_context){
4366
.func=open_and_parse_question,
4367
.epoll_fd=epoll_fd,
4368
.filename=filename,
4369
.question_filename=filename,
4370
.password=&password,
4371
.cancelled_filenames=task.cancelled_filenames,
4372
.current_time=¤t_time,
4373
.mandos_client_exited=&mandos_client_exited,
4374
.password_is_read=&password_is_read,
4375
}));
4376
}
4377
4378
static
4379
void test_read_inotify_event_IN_MOVED_FROM(__attribute__((unused))
4380
test_fixture *fixture,
4381
__attribute__((unused))
4382
gconstpointer user_data){
4383
__attribute__((cleanup(cleanup_close)))
4384
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4385
g_assert_cmpint(epoll_fd, >=, 0);
4386
__attribute__((cleanup(string_set_clear)))
4387
string_set cancelled_filenames = {};
4388
const mono_microsecs current_time = 0;
4389
4390
int pipefds[2];
4391
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4392
4393
/* "sufficient to read at least one event." - inotify(7) */
4394
const size_t ievent_max_size = (sizeof(struct inotify_event)
4395
+ NAME_MAX + 1);
4396
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4397
struct {
4398
struct inotify_event event;
4399
char name_buffer[NAME_MAX + 1];
4400
} ievent_buffer;
4401
struct inotify_event *const ievent = &ievent_buffer.event;
4402
4403
const char dummy_file_name[] = "ask.dummy_file_name";
4404
ievent->mask = IN_MOVED_FROM;
4405
ievent->len = sizeof(dummy_file_name);
4406
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4407
const size_t ievent_size = (sizeof(struct inotify_event)
4408
+ sizeof(dummy_file_name));
4409
#if defined(__GNUC__) and __GNUC__ >= 11
4410
#pragma GCC diagnostic push
4411
/* ievent is pointing into a struct which is of sufficient size */
4412
#pragma GCC diagnostic ignored "-Wstringop-overread"
4413
#endif
4414
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4415
==, ievent_size);
4416
#if defined(__GNUC__) and __GNUC__ >= 11
4417
#pragma GCC diagnostic pop
4418
#endif
4419
g_assert_cmpint(close(pipefds[1]), ==, 0);
4420
4421
bool quit_now = false;
4422
buffer password = {};
4423
bool mandos_client_exited = false;
4424
bool password_is_read = false;
4425
__attribute__((cleanup(cleanup_queue)))
4426
task_queue *queue = create_queue();
4427
g_assert_nonnull(queue);
4428
4429
task_context task = {
4430
.func=read_inotify_event,
4431
.epoll_fd=epoll_fd,
4432
.fd=pipefds[0],
4433
.quit_now=&quit_now,
4434
.password=&password,
4435
.filename=strdup("/nonexistent"),
4436
.cancelled_filenames=&cancelled_filenames,
4437
.current_time=¤t_time,
4438
.mandos_client_exited=&mandos_client_exited,
4439
.password_is_read=&password_is_read,
4440
};
4441
task.func(task, queue);
4442
g_assert_false(quit_now);
4443
g_assert_true(queue->next_run == 0);
4444
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4445
4446
g_assert_nonnull(find_matching_task(queue, (task_context){
4447
.func=read_inotify_event,
4448
.epoll_fd=epoll_fd,
4449
.fd=pipefds[0],
4450
.quit_now=&quit_now,
4451
.password=&password,
4452
.filename=task.filename,
4453
.cancelled_filenames=&cancelled_filenames,
4454
.current_time=¤t_time,
4455
.mandos_client_exited=&mandos_client_exited,
4456
.password_is_read=&password_is_read,
4457
}));
4458
4459
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4460
EPOLLIN | EPOLLRDHUP));
4461
4462
__attribute__((cleanup(cleanup_string)))
4463
char *filename = NULL;
4464
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4465
dummy_file_name), >, 0);
4466
g_assert_nonnull(filename);
4467
g_assert_true(string_set_contains(*task.cancelled_filenames,
4468
filename));
4469
}
4470
4471
static void test_read_inotify_event_IN_DELETE(__attribute__((unused))
4472
test_fixture *fixture,
4473
__attribute__((unused))
4474
gconstpointer
4475
user_data){
4476
__attribute__((cleanup(cleanup_close)))
4477
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4478
g_assert_cmpint(epoll_fd, >=, 0);
4479
__attribute__((cleanup(string_set_clear)))
4480
string_set cancelled_filenames = {};
4481
const mono_microsecs current_time = 0;
4482
4483
int pipefds[2];
4484
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4485
4486
/* "sufficient to read at least one event." - inotify(7) */
4487
const size_t ievent_max_size = (sizeof(struct inotify_event)
4488
+ NAME_MAX + 1);
4489
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4490
struct {
4491
struct inotify_event event;
4492
char name_buffer[NAME_MAX + 1];
4493
} ievent_buffer;
4494
struct inotify_event *const ievent = &ievent_buffer.event;
4495
4496
const char dummy_file_name[] = "ask.dummy_file_name";
4497
ievent->mask = IN_DELETE;
4498
ievent->len = sizeof(dummy_file_name);
4499
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4500
const size_t ievent_size = (sizeof(struct inotify_event)
4501
+ sizeof(dummy_file_name));
4502
#if defined(__GNUC__) and __GNUC__ >= 11
4503
#pragma GCC diagnostic push
4504
/* ievent is pointing into a struct which is of sufficient size */
4505
#pragma GCC diagnostic ignored "-Wstringop-overread"
4506
#endif
4507
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4508
==, ievent_size);
4509
#if defined(__GNUC__) and __GNUC__ >= 11
4510
#pragma GCC diagnostic pop
4511
#endif
4512
g_assert_cmpint(close(pipefds[1]), ==, 0);
4513
4514
bool quit_now = false;
4515
buffer password = {};
4516
bool mandos_client_exited = false;
4517
bool password_is_read = false;
4518
__attribute__((cleanup(cleanup_queue)))
4519
task_queue *queue = create_queue();
4520
g_assert_nonnull(queue);
4521
4522
task_context task = {
4523
.func=read_inotify_event,
4524
.epoll_fd=epoll_fd,
4525
.fd=pipefds[0],
4526
.quit_now=&quit_now,
4527
.password=&password,
4528
.filename=strdup("/nonexistent"),
4529
.cancelled_filenames=&cancelled_filenames,
4530
.current_time=¤t_time,
4531
.mandos_client_exited=&mandos_client_exited,
4532
.password_is_read=&password_is_read,
4533
};
4534
task.func(task, queue);
4535
g_assert_false(quit_now);
4536
g_assert_true(queue->next_run == 0);
4537
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4538
4539
g_assert_nonnull(find_matching_task(queue, (task_context){
4540
.func=read_inotify_event,
4541
.epoll_fd=epoll_fd,
4542
.fd=pipefds[0],
4543
.quit_now=&quit_now,
4544
.password=&password,
4545
.filename=task.filename,
4546
.cancelled_filenames=&cancelled_filenames,
4547
.current_time=¤t_time,
4548
.mandos_client_exited=&mandos_client_exited,
4549
.password_is_read=&password_is_read,
4550
}));
4551
4552
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4553
EPOLLIN | EPOLLRDHUP));
4554
4555
__attribute__((cleanup(cleanup_string)))
4556
char *filename = NULL;
4557
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4558
dummy_file_name), >, 0);
4559
g_assert_nonnull(filename);
4560
g_assert_true(string_set_contains(*task.cancelled_filenames,
4561
filename));
4562
}
4563
4564
static void
4565
test_read_inotify_event_IN_CLOSE_WRITE_badname(__attribute__((unused))
4566
test_fixture *fixture,
4567
__attribute__((unused))
4568
gconstpointer
4569
user_data){
4570
__attribute__((cleanup(cleanup_close)))
4571
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4572
g_assert_cmpint(epoll_fd, >=, 0);
4573
const mono_microsecs current_time = 0;
4574
4575
int pipefds[2];
4576
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4577
4578
/* "sufficient to read at least one event." - inotify(7) */
4579
const size_t ievent_max_size = (sizeof(struct inotify_event)
4580
+ NAME_MAX + 1);
4581
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4582
struct {
4583
struct inotify_event event;
4584
char name_buffer[NAME_MAX + 1];
4585
} ievent_buffer;
4586
struct inotify_event *const ievent = &ievent_buffer.event;
4587
4588
const char dummy_file_name[] = "ignored.dummy_file_name";
4589
ievent->mask = IN_CLOSE_WRITE;
4590
ievent->len = sizeof(dummy_file_name);
4591
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4592
const size_t ievent_size = (sizeof(struct inotify_event)
4593
+ sizeof(dummy_file_name));
4594
#if defined(__GNUC__) and __GNUC__ >= 11
4595
#pragma GCC diagnostic push
4596
/* ievent is pointing into a struct which is of sufficient size */
4597
#pragma GCC diagnostic ignored "-Wstringop-overread"
4598
#endif
4599
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4600
==, ievent_size);
4601
#if defined(__GNUC__) and __GNUC__ >= 11
4602
#pragma GCC diagnostic pop
4603
#endif
4604
g_assert_cmpint(close(pipefds[1]), ==, 0);
4605
4606
bool quit_now = false;
4607
buffer password = {};
4608
bool mandos_client_exited = false;
4609
bool password_is_read = false;
4610
__attribute__((cleanup(cleanup_queue)))
4611
task_queue *queue = create_queue();
4612
g_assert_nonnull(queue);
4613
4614
task_context task = {
4615
.func=read_inotify_event,
4616
.epoll_fd=epoll_fd,
4617
.fd=pipefds[0],
4618
.quit_now=&quit_now,
4619
.password=&password,
4620
.filename=strdup("/nonexistent"),
4621
.cancelled_filenames = &(string_set){},
4622
.notafter=0,
4623
.current_time=¤t_time,
4624
.mandos_client_exited=&mandos_client_exited,
4625
.password_is_read=&password_is_read,
4626
};
4627
task.func(task, queue);
4628
g_assert_false(quit_now);
4629
g_assert_true(queue->next_run == 0);
4630
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4631
4632
g_assert_nonnull(find_matching_task(queue, (task_context){
4633
.func=read_inotify_event,
4634
.epoll_fd=epoll_fd,
4635
.fd=pipefds[0],
4636
.quit_now=&quit_now,
4637
.password=&password,
4638
.filename=task.filename,
4639
.cancelled_filenames=task.cancelled_filenames,
4640
.current_time=¤t_time,
4641
.mandos_client_exited=&mandos_client_exited,
4642
.password_is_read=&password_is_read,
4643
}));
4644
4645
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4646
EPOLLIN | EPOLLRDHUP));
4647
}
4648
4649
static void
4650
test_read_inotify_event_IN_MOVED_TO_badname(__attribute__((unused))
4651
test_fixture *fixture,
4652
__attribute__((unused))
4653
gconstpointer user_data){
4654
__attribute__((cleanup(cleanup_close)))
4655
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4656
g_assert_cmpint(epoll_fd, >=, 0);
4657
const mono_microsecs current_time = 0;
4658
4659
int pipefds[2];
4660
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4661
4662
/* "sufficient to read at least one event." - inotify(7) */
4663
const size_t ievent_max_size = (sizeof(struct inotify_event)
4664
+ NAME_MAX + 1);
4665
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4666
struct {
4667
struct inotify_event event;
4668
char name_buffer[NAME_MAX + 1];
4669
} ievent_buffer;
4670
struct inotify_event *const ievent = &ievent_buffer.event;
4671
4672
const char dummy_file_name[] = "ignored.dummy_file_name";
4673
ievent->mask = IN_MOVED_TO;
4674
ievent->len = sizeof(dummy_file_name);
4675
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4676
const size_t ievent_size = (sizeof(struct inotify_event)
4677
+ sizeof(dummy_file_name));
4678
#if defined(__GNUC__) and __GNUC__ >= 11
4679
#pragma GCC diagnostic push
4680
/* ievent is pointing into a struct which is of sufficient size */
4681
#pragma GCC diagnostic ignored "-Wstringop-overread"
4682
#endif
4683
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4684
==, ievent_size);
4685
#if defined(__GNUC__) and __GNUC__ >= 11
4686
#pragma GCC diagnostic pop
4687
#endif
4688
g_assert_cmpint(close(pipefds[1]), ==, 0);
4689
4690
bool quit_now = false;
4691
buffer password = {};
4692
bool mandos_client_exited = false;
4693
bool password_is_read = false;
4694
__attribute__((cleanup(cleanup_queue)))
4695
task_queue *queue = create_queue();
4696
g_assert_nonnull(queue);
4697
4698
task_context task = {
4699
.func=read_inotify_event,
4700
.epoll_fd=epoll_fd,
4701
.fd=pipefds[0],
4702
.quit_now=&quit_now,
4703
.password=&password,
4704
.filename=strdup("/nonexistent"),
4705
.cancelled_filenames = &(string_set){},
4706
.notafter=0,
4707
.current_time=¤t_time,
4708
.mandos_client_exited=&mandos_client_exited,
4709
.password_is_read=&password_is_read,
4710
};
4711
task.func(task, queue);
4712
g_assert_false(quit_now);
4713
g_assert_true(queue->next_run == 0);
4714
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4715
4716
g_assert_nonnull(find_matching_task(queue, (task_context){
4717
.func=read_inotify_event,
4718
.epoll_fd=epoll_fd,
4719
.fd=pipefds[0],
4720
.quit_now=&quit_now,
4721
.password=&password,
4722
.filename=task.filename,
4723
.cancelled_filenames=task.cancelled_filenames,
4724
.current_time=¤t_time,
4725
.mandos_client_exited=&mandos_client_exited,
4726
.password_is_read=&password_is_read,
4727
}));
4728
4729
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4730
EPOLLIN | EPOLLRDHUP));
4731
}
4732
4733
static void
4734
test_read_inotify_event_IN_MOVED_FROM_badname(__attribute__((unused))
4735
test_fixture *fixture,
4736
__attribute__((unused))
4737
gconstpointer
4738
user_data){
4739
__attribute__((cleanup(cleanup_close)))
4740
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4741
g_assert_cmpint(epoll_fd, >=, 0);
4742
__attribute__((cleanup(string_set_clear)))
4743
string_set cancelled_filenames = {};
4744
const mono_microsecs current_time = 0;
4745
4746
int pipefds[2];
4747
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4748
4749
/* "sufficient to read at least one event." - inotify(7) */
4750
const size_t ievent_max_size = (sizeof(struct inotify_event)
4751
+ NAME_MAX + 1);
4752
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4753
struct {
4754
struct inotify_event event;
4755
char name_buffer[NAME_MAX + 1];
4756
} ievent_buffer;
4757
struct inotify_event *const ievent = &ievent_buffer.event;
4758
4759
const char dummy_file_name[] = "ignored.dummy_file_name";
4760
ievent->mask = IN_MOVED_FROM;
4761
ievent->len = sizeof(dummy_file_name);
4762
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4763
const size_t ievent_size = (sizeof(struct inotify_event)
4764
+ sizeof(dummy_file_name));
4765
#if defined(__GNUC__) and __GNUC__ >= 11
4766
#pragma GCC diagnostic push
4767
/* ievent is pointing into a struct which is of sufficient size */
4768
#pragma GCC diagnostic ignored "-Wstringop-overread"
4769
#endif
4770
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4771
==, ievent_size);
4772
#if defined(__GNUC__) and __GNUC__ >= 11
4773
#pragma GCC diagnostic pop
4774
#endif
4775
g_assert_cmpint(close(pipefds[1]), ==, 0);
4776
4777
bool quit_now = false;
4778
buffer password = {};
4779
bool mandos_client_exited = false;
4780
bool password_is_read = false;
4781
__attribute__((cleanup(cleanup_queue)))
4782
task_queue *queue = create_queue();
4783
g_assert_nonnull(queue);
4784
4785
task_context task = {
4786
.func=read_inotify_event,
4787
.epoll_fd=epoll_fd,
4788
.fd=pipefds[0],
4789
.quit_now=&quit_now,
4790
.password=&password,
4791
.filename=strdup("/nonexistent"),
4792
.cancelled_filenames=&cancelled_filenames,
4793
.current_time=¤t_time,
4794
.mandos_client_exited=&mandos_client_exited,
4795
.password_is_read=&password_is_read,
4796
};
4797
task.func(task, queue);
4798
g_assert_false(quit_now);
4799
g_assert_true(queue->next_run == 0);
4800
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4801
4802
g_assert_nonnull(find_matching_task(queue, (task_context){
4803
.func=read_inotify_event,
4804
.epoll_fd=epoll_fd,
4805
.fd=pipefds[0],
4806
.quit_now=&quit_now,
4807
.password=&password,
4808
.filename=task.filename,
4809
.cancelled_filenames=&cancelled_filenames,
4810
.current_time=¤t_time,
4811
.mandos_client_exited=&mandos_client_exited,
4812
.password_is_read=&password_is_read,
4813
}));
4814
4815
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4816
EPOLLIN | EPOLLRDHUP));
4817
4818
__attribute__((cleanup(cleanup_string)))
4819
char *filename = NULL;
4820
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4821
dummy_file_name), >, 0);
4822
g_assert_nonnull(filename);
4823
g_assert_false(string_set_contains(cancelled_filenames, filename));
4824
}
4825
4826
static
4827
void test_read_inotify_event_IN_DELETE_badname(__attribute__((unused))
4828
test_fixture *fixture,
4829
__attribute__((unused))
4830
gconstpointer
4831
user_data){
4832
__attribute__((cleanup(cleanup_close)))
4833
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4834
g_assert_cmpint(epoll_fd, >=, 0);
4835
__attribute__((cleanup(string_set_clear)))
4836
string_set cancelled_filenames = {};
4837
const mono_microsecs current_time = 0;
4838
4839
int pipefds[2];
4840
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4841
4842
/* "sufficient to read at least one event." - inotify(7) */
4843
const size_t ievent_max_size = (sizeof(struct inotify_event)
4844
+ NAME_MAX + 1);
4845
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4846
struct {
4847
struct inotify_event event;
4848
char name_buffer[NAME_MAX + 1];
4849
} ievent_buffer;
4850
struct inotify_event *const ievent = &ievent_buffer.event;
4851
4852
const char dummy_file_name[] = "ignored.dummy_file_name";
4853
ievent->mask = IN_DELETE;
4854
ievent->len = sizeof(dummy_file_name);
4855
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4856
const size_t ievent_size = (sizeof(struct inotify_event)
4857
+ sizeof(dummy_file_name));
4858
#if defined(__GNUC__) and __GNUC__ >= 11
4859
#pragma GCC diagnostic push
4860
/* ievent is pointing into a struct which is of sufficient size */
4861
#pragma GCC diagnostic ignored "-Wstringop-overread"
4862
#endif
4863
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4864
==, ievent_size);
4865
#if defined(__GNUC__) and __GNUC__ >= 11
4866
#pragma GCC diagnostic pop
4867
#endif
4868
g_assert_cmpint(close(pipefds[1]), ==, 0);
4869
4870
bool quit_now = false;
4871
buffer password = {};
4872
bool mandos_client_exited = false;
4873
bool password_is_read = false;
4874
__attribute__((cleanup(cleanup_queue)))
4875
task_queue *queue = create_queue();
4876
g_assert_nonnull(queue);
4877
4878
task_context task = {
4879
.func=read_inotify_event,
4880
.epoll_fd=epoll_fd,
4881
.fd=pipefds[0],
4882
.quit_now=&quit_now,
4883
.password=&password,
4884
.filename=strdup("/nonexistent"),
4885
.cancelled_filenames=&cancelled_filenames,
4886
.current_time=¤t_time,
4887
.mandos_client_exited=&mandos_client_exited,
4888
.password_is_read=&password_is_read,
4889
};
4890
task.func(task, queue);
4891
g_assert_false(quit_now);
4892
g_assert_true(queue->next_run == 0);
4893
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4894
4895
g_assert_nonnull(find_matching_task(queue, (task_context){
4896
.func=read_inotify_event,
4897
.epoll_fd=epoll_fd,
4898
.fd=pipefds[0],
4899
.quit_now=&quit_now,
4900
.password=&password,
4901
.filename=task.filename,
4902
.cancelled_filenames=&cancelled_filenames,
4903
.current_time=¤t_time,
4904
.mandos_client_exited=&mandos_client_exited,
4905
.password_is_read=&password_is_read,
4906
}));
4907
4908
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4909
EPOLLIN | EPOLLRDHUP));
4910
4911
__attribute__((cleanup(cleanup_string)))
4912
char *filename = NULL;
4913
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4914
dummy_file_name), >, 0);
4915
g_assert_nonnull(filename);
4916
g_assert_false(string_set_contains(cancelled_filenames, filename));
4917
}
4918
4919
static
4920
void test_open_and_parse_question_ENOENT(__attribute__((unused))
4921
test_fixture *fixture,
4922
__attribute__((unused))
4923
gconstpointer user_data){
4924
__attribute__((cleanup(cleanup_close)))
4925
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4926
g_assert_cmpint(epoll_fd, >=, 0);
4927
__attribute__((cleanup(string_set_clear)))
4928
string_set cancelled_filenames = {};
4929
bool mandos_client_exited = false;
4930
bool password_is_read = false;
4931
__attribute__((cleanup(cleanup_queue)))
4932
task_queue *queue = create_queue();
4933
g_assert_nonnull(queue);
4934
4935
char *const filename = strdup("/nonexistent");
4936
g_assert_nonnull(filename);
4937
task_context task = {
4938
.func=open_and_parse_question,
4939
.question_filename=filename,
4940
.epoll_fd=epoll_fd,
4941
.password=(buffer[]){{}},
4942
.filename=filename,
4943
.cancelled_filenames=&cancelled_filenames,
4944
.current_time=(mono_microsecs[]){0},
4945
.mandos_client_exited=&mandos_client_exited,
4946
.password_is_read=&password_is_read,
4947
};
4948
task.func(task, queue);
4949
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
4950
}
4951
4952
static void test_open_and_parse_question_EIO(__attribute__((unused))
4953
test_fixture *fixture,
4954
__attribute__((unused))
4955
gconstpointer user_data){
4956
__attribute__((cleanup(cleanup_close)))
4957
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4958
g_assert_cmpint(epoll_fd, >=, 0);
4959
__attribute__((cleanup(string_set_clear)))
4960
string_set cancelled_filenames = {};
4961
buffer password = {};
4962
bool mandos_client_exited = false;
4963
bool password_is_read = false;
4964
__attribute__((cleanup(cleanup_queue)))
4965
task_queue *queue = create_queue();
4966
g_assert_nonnull(queue);
4967
const mono_microsecs current_time = 0;
4968
4969
char *filename = strdup("/proc/self/mem");
4970
task_context task = {
4971
.func=open_and_parse_question,
4972
.question_filename=filename,
4973
.epoll_fd=epoll_fd,
4974
.password=&password,
4975
.filename=filename,
4976
.cancelled_filenames=&cancelled_filenames,
4977
.current_time=¤t_time,
4978
.mandos_client_exited=&mandos_client_exited,
4979
.password_is_read=&password_is_read,
4980
};
4981
run_task_with_stderr_to_dev_null(task, queue);
4982
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
4983
}
4984
4985
static void
4986
test_open_and_parse_question_parse_error(__attribute__((unused))
4987
test_fixture *fixture,
4988
__attribute__((unused))
4989
gconstpointer user_data){
4990
__attribute__((cleanup(cleanup_close)))
4991
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4992
g_assert_cmpint(epoll_fd, >=, 0);
4993
__attribute__((cleanup(string_set_clear)))
4994
string_set cancelled_filenames = {};
4995
__attribute__((cleanup(cleanup_queue)))
4996
task_queue *queue = create_queue();
4997
g_assert_nonnull(queue);
4998
4999
__attribute__((cleanup(cleanup_string)))
5000
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5001
g_assert_nonnull(tempfilename);
5002
int tempfile = mkostemp(tempfilename, O_CLOEXEC);
5003
g_assert_cmpint(tempfile, >, 0);
5004
const char bad_data[] = "this is bad syntax\n";
5005
g_assert_cmpint(write(tempfile, bad_data, sizeof(bad_data)),
5006
==, sizeof(bad_data));
5007
g_assert_cmpint(close(tempfile), ==, 0);
5008
5009
char *const filename = strdup(tempfilename);
5010
g_assert_nonnull(filename);
5011
task_context task = {
5012
.func=open_and_parse_question,
5013
.question_filename=filename,
5014
.epoll_fd=epoll_fd,
5015
.password=(buffer[]){{}},
5016
.filename=filename,
5017
.cancelled_filenames=&cancelled_filenames,
5018
.current_time=(mono_microsecs[]){0},
5019
.mandos_client_exited=(bool[]){false},
5020
.password_is_read=(bool[]){false},
5021
};
5022
run_task_with_stderr_to_dev_null(task, queue);
5023
5024
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5025
5026
g_assert_cmpint(unlink(tempfilename), ==, 0);
5027
}
5028
5029
static
5030
void test_open_and_parse_question_nosocket(__attribute__((unused))
5031
test_fixture *fixture,
5032
__attribute__((unused))
5033
gconstpointer user_data){
5034
__attribute__((cleanup(cleanup_close)))
5035
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5036
g_assert_cmpint(epoll_fd, >=, 0);
5037
__attribute__((cleanup(string_set_clear)))
5038
string_set cancelled_filenames = {};
5039
__attribute__((cleanup(cleanup_queue)))
5040
task_queue *queue = create_queue();
5041
g_assert_nonnull(queue);
5042
5043
__attribute__((cleanup(cleanup_string)))
5044
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5045
g_assert_nonnull(tempfilename);
5046
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5047
g_assert_cmpint(questionfile, >, 0);
5048
FILE *qf = fdopen(questionfile, "w");
5049
g_assert_cmpint(fprintf(qf, "[Ask]\nPID=1\n"), >, 0);
5050
g_assert_cmpint(fclose(qf), ==, 0);
5051
5052
char *const filename = strdup(tempfilename);
5053
g_assert_nonnull(filename);
5054
task_context task = {
5055
.func=open_and_parse_question,
5056
.question_filename=filename,
5057
.epoll_fd=epoll_fd,
5058
.password=(buffer[]){{}},
5059
.filename=filename,
5060
.cancelled_filenames=&cancelled_filenames,
5061
.current_time=(mono_microsecs[]){0},
5062
.mandos_client_exited=(bool[]){false},
5063
.password_is_read=(bool[]){false},
5064
};
5065
run_task_with_stderr_to_dev_null(task, queue);
5066
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5067
5068
g_assert_cmpint(unlink(tempfilename), ==, 0);
5069
}
5070
5071
static
5072
void test_open_and_parse_question_badsocket(__attribute__((unused))
5073
test_fixture *fixture,
5074
__attribute__((unused))
5075
gconstpointer user_data){
5076
__attribute__((cleanup(cleanup_close)))
5077
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5078
g_assert_cmpint(epoll_fd, >=, 0);
5079
__attribute__((cleanup(string_set_clear)))
5080
string_set cancelled_filenames = {};
5081
__attribute__((cleanup(cleanup_queue)))
5082
task_queue *queue = create_queue();
5083
g_assert_nonnull(queue);
5084
5085
__attribute__((cleanup(cleanup_string)))
5086
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5087
g_assert_nonnull(tempfilename);
5088
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5089
g_assert_cmpint(questionfile, >, 0);
5090
FILE *qf = fdopen(questionfile, "w");
5091
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=\nPID=1\n"), >, 0);
5092
g_assert_cmpint(fclose(qf), ==, 0);
5093
5094
char *const filename = strdup(tempfilename);
5095
g_assert_nonnull(filename);
5096
task_context task = {
5097
.func=open_and_parse_question,
5098
.question_filename=filename,
5099
.epoll_fd=epoll_fd,
5100
.password=(buffer[]){{}},
5101
.filename=filename,
5102
.cancelled_filenames=&cancelled_filenames,
5103
.current_time=(mono_microsecs[]){0},
5104
.mandos_client_exited=(bool[]){false},
5105
.password_is_read=(bool[]){false},
5106
};
5107
run_task_with_stderr_to_dev_null(task, queue);
5108
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5109
5110
g_assert_cmpint(unlink(tempfilename), ==, 0);
5111
}
5112
5113
static
5114
void test_open_and_parse_question_nopid(__attribute__((unused))
5115
test_fixture *fixture,
5116
__attribute__((unused))
5117
gconstpointer user_data){
5118
__attribute__((cleanup(cleanup_close)))
5119
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5120
g_assert_cmpint(epoll_fd, >=, 0);
5121
__attribute__((cleanup(string_set_clear)))
5122
string_set cancelled_filenames = {};
5123
__attribute__((cleanup(cleanup_queue)))
5124
task_queue *queue = create_queue();
5125
g_assert_nonnull(queue);
5126
5127
__attribute__((cleanup(cleanup_string)))
5128
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5129
g_assert_nonnull(tempfilename);
5130
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5131
g_assert_cmpint(questionfile, >, 0);
5132
FILE *qf = fdopen(questionfile, "w");
5133
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\n"), >, 0);
5134
g_assert_cmpint(fclose(qf), ==, 0);
5135
5136
char *const filename = strdup(tempfilename);
5137
g_assert_nonnull(filename);
5138
task_context task = {
5139
.func=open_and_parse_question,
5140
.question_filename=filename,
5141
.epoll_fd=epoll_fd,
5142
.password=(buffer[]){{}},
5143
.filename=filename,
5144
.cancelled_filenames=&cancelled_filenames,
5145
.current_time=(mono_microsecs[]){0},
5146
.mandos_client_exited=(bool[]){false},
5147
.password_is_read=(bool[]){false},
5148
};
5149
run_task_with_stderr_to_dev_null(task, queue);
5150
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5151
5152
g_assert_cmpint(unlink(tempfilename), ==, 0);
5153
}
5154
5155
static
5156
void test_open_and_parse_question_badpid(__attribute__((unused))
5157
test_fixture *fixture,
5158
__attribute__((unused))
5159
gconstpointer user_data){
5160
__attribute__((cleanup(cleanup_close)))
5161
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5162
g_assert_cmpint(epoll_fd, >=, 0);
5163
__attribute__((cleanup(string_set_clear)))
5164
string_set cancelled_filenames = {};
5165
__attribute__((cleanup(cleanup_queue)))
5166
task_queue *queue = create_queue();
5167
g_assert_nonnull(queue);
5168
5169
__attribute__((cleanup(cleanup_string)))
5170
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5171
g_assert_nonnull(tempfilename);
5172
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5173
g_assert_cmpint(questionfile, >, 0);
5174
FILE *qf = fdopen(questionfile, "w");
5175
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=\n"),
5176
>, 0);
5177
g_assert_cmpint(fclose(qf), ==, 0);
5178
5179
char *const filename = strdup(tempfilename);
5180
g_assert_nonnull(filename);
5181
task_context task = {
5182
.func=open_and_parse_question,
5183
.question_filename=filename,
5184
.epoll_fd=epoll_fd,
5185
.password=(buffer[]){{}},
5186
.filename=filename,
5187
.cancelled_filenames=&cancelled_filenames,
5188
.current_time=(mono_microsecs[]){0},
5189
.mandos_client_exited=(bool[]){false},
5190
.password_is_read=(bool[]){false},
5191
};
5192
run_task_with_stderr_to_dev_null(task, queue);
5193
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5194
5195
g_assert_cmpint(unlink(tempfilename), ==, 0);
5196
}
5197
5198
static void
5199
test_open_and_parse_question_noexist_pid(__attribute__((unused))
5200
test_fixture *fixture,
5201
__attribute__((unused))
5202
gconstpointer user_data){
5203
__attribute__((cleanup(cleanup_close)))
5204
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5205
g_assert_cmpint(epoll_fd, >=, 0);
5206
__attribute__((cleanup(string_set_clear)))
5207
string_set cancelled_filenames = {};
5208
buffer password = {};
5209
bool mandos_client_exited = false;
5210
bool password_is_read = false;
5211
__attribute__((cleanup(cleanup_queue)))
5212
task_queue *queue = create_queue();
5213
g_assert_nonnull(queue);
5214
const mono_microsecs current_time = 0;
5215
5216
/* Find value of sysctl kernel.pid_max */
5217
uintmax_t pid_max = 0;
5218
FILE *sysctl_pid_max = fopen("/proc/sys/kernel/pid_max", "r");
5219
g_assert_nonnull(sysctl_pid_max);
5220
g_assert_cmpint(fscanf(sysctl_pid_max, "%" PRIuMAX, &pid_max),
5221
==, 1);
5222
g_assert_cmpint(fclose(sysctl_pid_max), ==, 0);
5223
5224
pid_t nonexisting_pid = ((pid_t)pid_max)+1;
5225
g_assert_true(nonexisting_pid > 0); /* Overflow check */
5226
5227
__attribute__((cleanup(cleanup_string)))
5228
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5229
g_assert_nonnull(tempfilename);
5230
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5231
g_assert_cmpint(questionfile, >, 0);
5232
FILE *qf = fdopen(questionfile, "w");
5233
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"
5234
PRIuMAX"\n", (uintmax_t)nonexisting_pid),
5235
>, 0);
5236
g_assert_cmpint(fclose(qf), ==, 0);
5237
5238
char *const question_filename = strdup(tempfilename);
5239
g_assert_nonnull(question_filename);
5240
task_context task = {
5241
.func=open_and_parse_question,
5242
.question_filename=question_filename,
5243
.epoll_fd=epoll_fd,
5244
.password=&password,
5245
.filename=question_filename,
5246
.cancelled_filenames=&cancelled_filenames,
5247
.current_time=¤t_time,
5248
.mandos_client_exited=&mandos_client_exited,
5249
.password_is_read=&password_is_read,
5250
};
5251
run_task_with_stderr_to_dev_null(task, queue);
5252
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5253
5254
g_assert_cmpint(unlink(tempfilename), ==, 0);
5255
}
5256
5257
static void
5258
test_open_and_parse_question_no_notafter(__attribute__((unused))
5259
test_fixture *fixture,
5260
__attribute__((unused))
5261
gconstpointer user_data){
5262
__attribute__((cleanup(cleanup_close)))
5263
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5264
g_assert_cmpint(epoll_fd, >=, 0);
5265
__attribute__((cleanup(string_set_clear)))
5266
string_set cancelled_filenames = {};
5267
buffer password = {};
5268
bool mandos_client_exited = false;
5269
bool password_is_read = false;
5270
__attribute__((cleanup(cleanup_queue)))
5271
task_queue *queue = create_queue();
5272
g_assert_nonnull(queue);
5273
const mono_microsecs current_time = 0;
5274
5275
__attribute__((cleanup(cleanup_string)))
5276
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5277
g_assert_nonnull(tempfilename);
5278
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5279
g_assert_cmpint(questionfile, >, 0);
5280
FILE *qf = fdopen(questionfile, "w");
5281
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"
5282
PRIuMAX "\n", (uintmax_t)getpid()), >, 0);
5283
g_assert_cmpint(fclose(qf), ==, 0);
5284
5285
char *const filename = strdup(tempfilename);
5286
g_assert_nonnull(filename);
5287
task_context task = {
5288
.func=open_and_parse_question,
5289
.question_filename=filename,
5290
.epoll_fd=epoll_fd,
5291
.password=&password,
5292
.filename=filename,
5293
.cancelled_filenames=&cancelled_filenames,
5294
.current_time=¤t_time,
5295
.mandos_client_exited=&mandos_client_exited,
5296
.password_is_read=&password_is_read,
5297
};
5298
task.func(task, queue);
5299
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5300
5301
__attribute__((cleanup(cleanup_string)))
5302
char *socket_filename = strdup("/nonexistent");
5303
g_assert_nonnull(socket_filename);
5304
g_assert_nonnull(find_matching_task(queue, (task_context){
5305
.func=connect_question_socket,
5306
.question_filename=tempfilename,
5307
.filename=socket_filename,
5308
.epoll_fd=epoll_fd,
5309
.password=&password,
5310
.current_time=¤t_time,
5311
.mandos_client_exited=&mandos_client_exited,
5312
.password_is_read=&password_is_read,
5313
}));
5314
5315
g_assert_true(queue->next_run != 0);
5316
5317
g_assert_cmpint(unlink(tempfilename), ==, 0);
5318
}
5319
5320
static void
5321
test_open_and_parse_question_bad_notafter(__attribute__((unused))
5322
test_fixture *fixture,
5323
__attribute__((unused))
5324
gconstpointer user_data){
5325
__attribute__((cleanup(cleanup_close)))
5326
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5327
g_assert_cmpint(epoll_fd, >=, 0);
5328
__attribute__((cleanup(string_set_clear)))
5329
string_set cancelled_filenames = {};
5330
buffer password = {};
5331
bool mandos_client_exited = false;
5332
bool password_is_read = false;
5333
__attribute__((cleanup(cleanup_queue)))
5334
task_queue *queue = create_queue();
5335
g_assert_nonnull(queue);
5336
const mono_microsecs current_time = 0;
5337
5338
__attribute__((cleanup(cleanup_string)))
5339
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5340
g_assert_nonnull(tempfilename);
5341
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5342
g_assert_cmpint(questionfile, >, 0);
5343
FILE *qf = fdopen(questionfile, "w");
5344
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"
5345
PRIuMAX "\nNotAfter=\n",
5346
(uintmax_t)getpid()), >, 0);
5347
g_assert_cmpint(fclose(qf), ==, 0);
5348
5349
char *const filename = strdup(tempfilename);
5350
g_assert_nonnull(filename);
5351
task_context task = {
5352
.func=open_and_parse_question,
5353
.question_filename=filename,
5354
.epoll_fd=epoll_fd,
5355
.password=&password,
5356
.filename=filename,
5357
.cancelled_filenames=&cancelled_filenames,
5358
.current_time=¤t_time,
5359
.mandos_client_exited=&mandos_client_exited,
5360
.password_is_read=&password_is_read,
5361
};
5362
run_task_with_stderr_to_dev_null(task, queue);
5363
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5364
5365
__attribute__((cleanup(cleanup_string)))
5366
char *socket_filename = strdup("/nonexistent");
5367
g_assert_nonnull(find_matching_task(queue, (task_context){
5368
.func=connect_question_socket,
5369
.question_filename=tempfilename,
5370
.filename=socket_filename,
5371
.epoll_fd=epoll_fd,
5372
.password=&password,
5373
.current_time=¤t_time,
5374
.mandos_client_exited=&mandos_client_exited,
5375
.password_is_read=&password_is_read,
5376
}));
5377
g_assert_true(queue->next_run != 0);
5378
5379
g_assert_cmpint(unlink(tempfilename), ==, 0);
5380
}
5381
5382
static
5383
void assert_open_and_parse_question_with_notafter(const mono_microsecs
5384
current_time,
5385
const mono_microsecs
5386
notafter,
5387
const mono_microsecs
5388
next_queue_run){
5389
__attribute__((cleanup(cleanup_close)))
5390
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5391
g_assert_cmpint(epoll_fd, >=, 0);
5392
__attribute__((cleanup(string_set_clear)))
5393
string_set cancelled_filenames = {};
5394
buffer password = {};
5395
bool mandos_client_exited = false;
5396
bool password_is_read = false;
5397
__attribute__((cleanup(cleanup_queue)))
5398
task_queue *queue = create_queue();
5399
g_assert_nonnull(queue);
5400
queue->next_run = next_queue_run;
5401
5402
__attribute__((cleanup(cleanup_string)))
5403
char *tempfilename = strdup("/tmp/mandosXXXXXX");
5404
g_assert_nonnull(tempfilename);
5405
int questionfile = mkostemp(tempfilename, O_CLOEXEC);
5406
g_assert_cmpint(questionfile, >, 0);
5407
FILE *qf = fdopen(questionfile, "w");
5408
g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"
5409
PRIuMAX "\nNotAfter=%" PRIuMAX "\n",
5410
(uintmax_t)getpid(), notafter), >, 0);
5411
g_assert_cmpint(fclose(qf), ==, 0);
5412
5413
char *const filename = strdup(tempfilename);
5414
g_assert_nonnull(filename);
5415
task_context task = {
5416
.func=open_and_parse_question,
5417
.question_filename=filename,
5418
.epoll_fd=epoll_fd,
5419
.password=&password,
5420
.filename=filename,
5421
.cancelled_filenames=&cancelled_filenames,
5422
.current_time=¤t_time,
5423
.mandos_client_exited=&mandos_client_exited,
5424
.password_is_read=&password_is_read,
5425
};
5426
task.func(task, queue);
5427
5428
if(queue->length >= 1){
5429
__attribute__((cleanup(cleanup_string)))
5430
char *socket_filename = strdup("/nonexistent");
5431
g_assert_nonnull(find_matching_task(queue, (task_context){
5432
.func=connect_question_socket,
5433
.filename=socket_filename,
5434
.epoll_fd=epoll_fd,
5435
.password=&password,
5436
.current_time=¤t_time,
5437
.cancelled_filenames=&cancelled_filenames,
5438
.mandos_client_exited=&mandos_client_exited,
5439
.password_is_read=&password_is_read,
5440
}));
5441
g_assert_true(queue->next_run != 0);
5442
}
5443
5444
if(notafter == 0){
5445
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5446
} else if(current_time >= notafter) {
5447
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5448
} else {
5449
g_assert_nonnull(find_matching_task(queue, (task_context){
5450
.func=cancel_old_question,
5451
.question_filename=tempfilename,
5452
.filename=tempfilename,
5453
.notafter=notafter,
5454
.cancelled_filenames=&cancelled_filenames,
5455
.current_time=¤t_time,
5456
}));
5457
}
5458
g_assert_true(queue->next_run == 1);
5459
5460
g_assert_cmpint(unlink(tempfilename), ==, 0);
5461
}
5462
5463
static void
5464
test_open_and_parse_question_notafter_0(__attribute__((unused))
5465
test_fixture *fixture,
5466
__attribute__((unused))
5467
gconstpointer user_data){
5468
/* current_time, notafter, next_queue_run */
5469
assert_open_and_parse_question_with_notafter(0, 0, 0);
5470
}
5471
5472
static void
5473
test_open_and_parse_question_notafter_1(__attribute__((unused))
5474
test_fixture *fixture,
5475
__attribute__((unused))
5476
gconstpointer user_data){
5477
/* current_time, notafter, next_queue_run */
5478
assert_open_and_parse_question_with_notafter(0, 1, 0);
5479
}
5480
5481
static void
5482
test_open_and_parse_question_notafter_1_1(__attribute__((unused))
5483
test_fixture *fixture,
5484
__attribute__((unused))
5485
gconstpointer user_data){
5486
/* current_time, notafter, next_queue_run */
5487
assert_open_and_parse_question_with_notafter(0, 1, 1);
5488
}
5489
5490
static void
5491
test_open_and_parse_question_notafter_1_2(__attribute__((unused))
5492
test_fixture *fixture,
5493
__attribute__((unused))
5494
gconstpointer user_data){
5495
/* current_time, notafter, next_queue_run */
5496
assert_open_and_parse_question_with_notafter(0, 1, 2);
5497
}
5498
5499
static void
5500
test_open_and_parse_question_equal_notafter(__attribute__((unused))
5501
test_fixture *fixture,
5502
__attribute__((unused))
5503
gconstpointer user_data){
5504
/* current_time, notafter, next_queue_run */
5505
assert_open_and_parse_question_with_notafter(1, 1, 0);
5506
}
5507
5508
static void
5509
test_open_and_parse_question_late_notafter(__attribute__((unused))
5510
test_fixture *fixture,
5511
__attribute__((unused))
5512
gconstpointer user_data){
5513
/* current_time, notafter, next_queue_run */
5514
assert_open_and_parse_question_with_notafter(2, 1, 0);
5515
}
5516
5517
static void assert_cancel_old_question_param(const mono_microsecs
5518
next_queue_run,
5519
const mono_microsecs
5520
notafter,
5521
const mono_microsecs
5522
current_time,
5523
const mono_microsecs
5524
next_set_to){
5525
__attribute__((cleanup(string_set_clear)))
5526
string_set cancelled_filenames = {};
5527
__attribute__((cleanup(cleanup_queue)))
5528
task_queue *queue = create_queue();
5529
g_assert_nonnull(queue);
5530
queue->next_run = next_queue_run;
5531
5532
char *const question_filename = strdup("/nonexistent");
5533
g_assert_nonnull(question_filename);
5534
task_context task = {
5535
.func=cancel_old_question,
5536
.question_filename=question_filename,
5537
.filename=question_filename,
5538
.notafter=notafter,
5539
.cancelled_filenames=&cancelled_filenames,
5540
.current_time=¤t_time,
5541
};
5542
task.func(task, queue);
5543
5544
if(current_time >= notafter){
5545
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5546
g_assert_true(string_set_contains(cancelled_filenames,
5547
"/nonexistent"));
5548
} else {
5549
g_assert_nonnull(find_matching_task(queue, (task_context){
5550
.func=cancel_old_question,
5551
.question_filename=question_filename,
5552
.filename=question_filename,
5553
.notafter=notafter,
5554
.cancelled_filenames=&cancelled_filenames,
5555
.current_time=¤t_time,
5556
}));
5557
5558
g_assert_false(string_set_contains(cancelled_filenames,
5559
question_filename));
5560
}
5561
g_assert_cmpuint((unsigned int)queue->next_run, ==,
5562
(unsigned int)next_set_to);
5563
}
5564
5565
static void test_cancel_old_question_0_1_2(__attribute__((unused))
5566
test_fixture *fixture,
5567
__attribute__((unused))
5568
gconstpointer user_data){
5569
/* next_queue_run unset,
5570
cancellation should happen because time has come,
5571
next_queue_run should be unchanged */
5572
/* next_queue_run, notafter, current_time, next_set_to */
5573
assert_cancel_old_question_param(0, 1, 2, 0);
5574
}
5575
5576
static void test_cancel_old_question_0_2_1(__attribute__((unused))
5577
test_fixture *fixture,
5578
__attribute__((unused))
5579
gconstpointer user_data){
5580
/* If next_queue_run is 0, meaning unset, and notafter is 2,
5581
and current_time is not yet notafter or greater,
5582
update value of next_queue_run to value of notafter */
5583
/* next_queue_run, notafter, current_time, next_set_to */
5584
assert_cancel_old_question_param(0, 2, 1, 2);
5585
}
5586
5587
static void test_cancel_old_question_1_2_3(__attribute__((unused))
5588
test_fixture *fixture,
5589
__attribute__((unused))
5590
gconstpointer user_data){
5591
/* next_queue_run 1,
5592
cancellation should happen because time has come,
5593
next_queue_run should be unchanged */
5594
/* next_queue_run, notafter, current_time, next_set_to */
5595
assert_cancel_old_question_param(1, 2, 3, 1);
5596
}
5597
5598
static void test_cancel_old_question_1_3_2(__attribute__((unused))
5599
test_fixture *fixture,
5600
__attribute__((unused))
5601
gconstpointer user_data){
5602
/* If next_queue_run is set,
5603
and current_time is not yet notafter or greater,
5604
and notafter is larger than next_queue_run
5605
next_queue_run should be unchanged */
5606
/* next_queue_run, notafter, current_time, next_set_to */
5607
assert_cancel_old_question_param(1, 3, 2, 1);
5608
}
5609
5610
static void test_cancel_old_question_2_1_3(__attribute__((unused))
5611
test_fixture *fixture,
5612
__attribute__((unused))
5613
gconstpointer user_data){
5614
/* next_queue_run 2,
5615
cancellation should happen because time has come,
5616
next_queue_run should be unchanged */
5617
/* next_queue_run, notafter, current_time, next_set_to */
5618
assert_cancel_old_question_param(2, 1, 3, 2);
5619
}
5620
5621
static void test_cancel_old_question_2_3_1(__attribute__((unused))
5622
test_fixture *fixture,
5623
__attribute__((unused))
5624
gconstpointer user_data){
5625
/* If next_queue_run is set,
5626
and current_time is not yet notafter or greater,
5627
and notafter is larger than next_queue_run
5628
next_queue_run should be unchanged */
5629
/* next_queue_run, notafter, current_time, next_set_to */
5630
assert_cancel_old_question_param(2, 3, 1, 2);
5631
}
5632
5633
static void test_cancel_old_question_3_1_2(__attribute__((unused))
5634
test_fixture *fixture,
5635
__attribute__((unused))
5636
gconstpointer user_data){
5637
/* next_queue_run 3,
5638
cancellation should happen because time has come,
5639
next_queue_run should be unchanged */
5640
/* next_queue_run, notafter, current_time, next_set_to */
5641
assert_cancel_old_question_param(3, 1, 2, 3);
5642
}
5643
5644
static void test_cancel_old_question_3_2_1(__attribute__((unused))
5645
test_fixture *fixture,
5646
__attribute__((unused))
5647
gconstpointer user_data){
5648
/* If next_queue_run is set,
5649
and current_time is not yet notafter or greater,
5650
and notafter is smaller than next_queue_run
5651
update value of next_queue_run to value of notafter */
5652
/* next_queue_run, notafter, current_time, next_set_to */
5653
assert_cancel_old_question_param(3, 2, 1, 2);
5654
}
5655
5656
static void
5657
test_connect_question_socket_name_too_long(__attribute__((unused))
5658
test_fixture *fixture,
5659
__attribute__((unused))
5660
gconstpointer user_data){
5661
__attribute__((cleanup(cleanup_close)))
5662
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5663
g_assert_cmpint(epoll_fd, >=, 0);
5664
const char question_filename[] = "/nonexistent/question";
5665
__attribute__((cleanup(string_set_clear)))
5666
string_set cancelled_filenames = {};
5667
__attribute__((cleanup(cleanup_queue)))
5668
task_queue *queue = create_queue();
5669
g_assert_nonnull(queue);
5670
__attribute__((cleanup(cleanup_string)))
5671
char *tempdir = make_temporary_directory();
5672
g_assert_nonnull(tempdir);
5673
struct sockaddr_un unix_socket = { .sun_family=AF_LOCAL };
5674
char socket_name[sizeof(unix_socket.sun_path)];
5675
memset(socket_name, 'x', sizeof(socket_name));
5676
socket_name[sizeof(socket_name)-1] = '\0';
5677
char *filename = NULL;
5678
g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),
5679
>, 0);
5680
g_assert_nonnull(filename);
5681
5682
task_context task = {
5683
.func=connect_question_socket,
5684
.question_filename=strdup(question_filename),
5685
.epoll_fd=epoll_fd,
5686
.password=(buffer[]){{}},
5687
.filename=filename,
5688
.cancelled_filenames=&cancelled_filenames,
5689
.mandos_client_exited=(bool[]){false},
5690
.password_is_read=(bool[]){false},
5691
.current_time=(mono_microsecs[]){0},
5692
};
5693
g_assert_nonnull(task.question_filename);
5694
run_task_with_stderr_to_dev_null(task, queue);
5695
5696
g_assert_true(string_set_contains(cancelled_filenames,
5697
question_filename));
5698
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
5699
g_assert_true(queue->next_run == 0);
5700
5701
g_assert_cmpint(rmdir(tempdir), ==, 0);
5702
}
5703
5704
static
5705
void test_connect_question_socket_connect_fail(__attribute__((unused))
5706
test_fixture *fixture,
5707
__attribute__((unused))
5708
gconstpointer
5709
user_data){
5710
__attribute__((cleanup(cleanup_close)))
5711
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5712
g_assert_cmpint(epoll_fd, >=, 0);
5713
const char question_filename[] = "/nonexistent/question";
5714
__attribute__((cleanup(string_set_clear)))
5715
string_set cancelled_filenames = {};
5716
const mono_microsecs current_time = 3;
5717
__attribute__((cleanup(cleanup_queue)))
5718
task_queue *queue = create_queue();
5719
g_assert_nonnull(queue);
5720
__attribute__((cleanup(cleanup_string)))
5721
char *tempdir = make_temporary_directory();
5722
g_assert_nonnull(tempdir);
5723
char socket_name[] = "nonexistent";
5724
char *filename = NULL;
5725
g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),
5726
>, 0);
5727
g_assert_nonnull(filename);
5728
5729
task_context task = {
5730
.func=connect_question_socket,
5731
.question_filename=strdup(question_filename),
5732
.epoll_fd=epoll_fd,
5733
.password=(buffer[]){{}},
5734
.filename=filename,
5735
.cancelled_filenames=&cancelled_filenames,
5736
.mandos_client_exited=(bool[]){false},
5737
.password_is_read=(bool[]){false},
5738
.current_time=¤t_time,
5739
};
5740
g_assert_nonnull(task.question_filename);
5741
run_task_with_stderr_to_dev_null(task, queue);
5742
5743
g_assert_nonnull(find_matching_task(queue, task));
5744
5745
g_assert_false(string_set_contains(cancelled_filenames,
5746
question_filename));
5747
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5748
g_assert_true(queue->next_run == 1000000 + current_time);
5749
5750
g_assert_cmpint(rmdir(tempdir), ==, 0);
5751
}
5752
5753
static
5754
void test_connect_question_socket_bad_epoll(__attribute__((unused))
5755
test_fixture *fixture,
5756
__attribute__((unused))
5757
gconstpointer user_data){
5758
__attribute__((cleanup(cleanup_close)))
5759
const int epoll_fd = open("/dev/null",
5760
O_WRONLY | O_CLOEXEC | O_NOCTTY);
5761
__attribute__((cleanup(cleanup_string)))
5762
char *const question_filename = strdup("/nonexistent/question");
5763
g_assert_nonnull(question_filename);
5764
__attribute__((cleanup(string_set_clear)))
5765
string_set cancelled_filenames = {};
5766
const mono_microsecs current_time = 5;
5767
__attribute__((cleanup(cleanup_queue)))
5768
task_queue *queue = create_queue();
5769
g_assert_nonnull(queue);
5770
__attribute__((cleanup(cleanup_string)))
5771
char *tempdir = make_temporary_directory();
5772
g_assert_nonnull(tempdir);
5773
__attribute__((cleanup(cleanup_close)))
5774
const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM
5775
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);
5776
g_assert_cmpint(sock_fd, >=, 0);
5777
struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };
5778
const char socket_name[] = "socket_name";
5779
__attribute__((cleanup(cleanup_string)))
5780
char *filename = NULL;
5781
g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),
5782
>, 0);
5783
g_assert_nonnull(filename);
5784
g_assert_cmpint((int)strlen(filename), <,
5785
(int)sizeof(sock_name.sun_path));
5786
strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));
5787
sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';
5788
g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,
5789
(socklen_t)SUN_LEN(&sock_name)), >=, 0);
5790
task_context task = {
5791
.func=connect_question_socket,
5792
.question_filename=strdup(question_filename),
5793
.epoll_fd=epoll_fd,
5794
.password=(buffer[]){{}},
5795
.filename=strdup(filename),
5796
.cancelled_filenames=&cancelled_filenames,
5797
.mandos_client_exited=(bool[]){false},
5798
.password_is_read=(bool[]){false},
5799
.current_time=¤t_time,
5800
};
5801
g_assert_nonnull(task.question_filename);
5802
run_task_with_stderr_to_dev_null(task, queue);
5803
5804
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5805
const task_context *const added_task
5806
= find_matching_task(queue, task);
5807
g_assert_nonnull(added_task);
5808
g_assert_true(queue->next_run == 1000000 + current_time);
5809
5810
g_assert_cmpint(unlink(filename), ==, 0);
5811
g_assert_cmpint(rmdir(tempdir), ==, 0);
5812
}
5813
5814
static
5815
void test_connect_question_socket_usable(__attribute__((unused))
5816
test_fixture *fixture,
5817
__attribute__((unused))
5818
gconstpointer user_data){
5819
__attribute__((cleanup(cleanup_close)))
5820
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5821
g_assert_cmpint(epoll_fd, >=, 0);
5822
__attribute__((cleanup(cleanup_string)))
5823
char *const question_filename = strdup("/nonexistent/question");
5824
g_assert_nonnull(question_filename);
5825
__attribute__((cleanup(string_set_clear)))
5826
string_set cancelled_filenames = {};
5827
buffer password = {};
5828
bool mandos_client_exited = false;
5829
bool password_is_read = false;
5830
const mono_microsecs current_time = 0;
5831
__attribute__((cleanup(cleanup_queue)))
5832
task_queue *queue = create_queue();
5833
g_assert_nonnull(queue);
5834
__attribute__((cleanup(cleanup_string)))
5835
char *tempdir = make_temporary_directory();
5836
g_assert_nonnull(tempdir);
5837
__attribute__((cleanup(cleanup_close)))
5838
const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM
5839
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);
5840
g_assert_cmpint(sock_fd, >=, 0);
5841
struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };
5842
const char socket_name[] = "socket_name";
5843
__attribute__((cleanup(cleanup_string)))
5844
char *filename = NULL;
5845
g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),
5846
>, 0);
5847
g_assert_nonnull(filename);
5848
g_assert_cmpint((int)strlen(filename), <,
5849
(int)sizeof(sock_name.sun_path));
5850
strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));
5851
sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';
5852
g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,
5853
(socklen_t)SUN_LEN(&sock_name)), >=, 0);
5854
task_context task = {
5855
.func=connect_question_socket,
5856
.question_filename=strdup(question_filename),
5857
.epoll_fd=epoll_fd,
5858
.password=&password,
5859
.filename=strdup(filename),
5860
.cancelled_filenames=&cancelled_filenames,
5861
.mandos_client_exited=&mandos_client_exited,
5862
.password_is_read=&password_is_read,
5863
.current_time=¤t_time,
5864
};
5865
g_assert_nonnull(task.question_filename);
5866
task.func(task, queue);
5867
5868
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5869
const task_context *const added_task
5870
= find_matching_task(queue, (task_context){
5871
.func=send_password_to_socket,
5872
.question_filename=question_filename,
5873
.filename=filename,
5874
.epoll_fd=epoll_fd,
5875
.password=&password,
5876
.cancelled_filenames=&cancelled_filenames,
5877
.mandos_client_exited=&mandos_client_exited,
5878
.password_is_read=&password_is_read,
5879
.current_time=¤t_time,
5880
});
5881
g_assert_nonnull(added_task);
5882
g_assert_cmpint(added_task->fd, >, 0);
5883
5884
g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,
5885
EPOLLOUT));
5886
5887
const int fd = added_task->fd;
5888
g_assert_cmpint(fd, >, 0);
5889
g_assert_true(fd_has_cloexec_and_nonblock(fd));
5890
5891
/* write to fd */
5892
char write_data[PIPE_BUF];
5893
{
5894
/* Construct test password buffer */
5895
/* Start with + since that is what the real protocol uses */
5896
write_data[0] = '+';
5897
/* Set a special character at string end just to mark the end */
5898
write_data[sizeof(write_data)-2] = 'y';
5899
/* Set NUL at buffer end, as suggested by the protocol */
5900
write_data[sizeof(write_data)-1] = '\0';
5901
/* Fill rest of password with 'x' */
5902
memset(write_data+1, 'x', sizeof(write_data)-3);
5903
g_assert_cmpint((int)send(fd, write_data, sizeof(write_data),
5904
MSG_NOSIGNAL), ==, sizeof(write_data));
5905
}
5906
5907
/* read from sock_fd */
5908
char read_data[sizeof(write_data)];
5909
g_assert_cmpint((int)read(sock_fd, read_data, sizeof(read_data)),
5910
==, sizeof(read_data));
5911
5912
g_assert_true(memcmp(write_data, read_data, sizeof(write_data))
5913
== 0);
5914
5915
/* writing to sock_fd should fail */
5916
g_assert_cmpint(send(sock_fd, write_data, sizeof(write_data),
5917
MSG_NOSIGNAL), <, 0);
5918
5919
/* reading from fd should fail */
5920
g_assert_cmpint((int)recv(fd, read_data, sizeof(read_data),
5921
MSG_NOSIGNAL), <, 0);
5922
5923
g_assert_cmpint(unlink(filename), ==, 0);
5924
g_assert_cmpint(rmdir(tempdir), ==, 0);
5925
}
5926
5927
static void
5928
test_send_password_to_socket_client_not_exited(__attribute__((unused))
5929
test_fixture *fixture,
5930
__attribute__((unused))
5931
gconstpointer
5932
user_data){
5933
__attribute__((cleanup(cleanup_close)))
5934
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5935
g_assert_cmpint(epoll_fd, >=, 0);
5936
__attribute__((cleanup(cleanup_string)))
5937
char *const question_filename = strdup("/nonexistent/question");
5938
g_assert_nonnull(question_filename);
5939
__attribute__((cleanup(cleanup_string)))
5940
char *const filename = strdup("/nonexistent/socket");
5941
g_assert_nonnull(filename);
5942
__attribute__((cleanup(string_set_clear)))
5943
string_set cancelled_filenames = {};
5944
buffer password = {};
5945
bool password_is_read = true;
5946
__attribute__((cleanup(cleanup_queue)))
5947
task_queue *queue = create_queue();
5948
g_assert_nonnull(queue);
5949
int socketfds[2];
5950
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
5951
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
5952
socketfds), ==, 0);
5953
__attribute__((cleanup(cleanup_close)))
5954
const int read_socket = socketfds[0];
5955
const int write_socket = socketfds[1];
5956
task_context task = {
5957
.func=send_password_to_socket,
5958
.question_filename=strdup(question_filename),
5959
.filename=strdup(filename),
5960
.epoll_fd=epoll_fd,
5961
.fd=write_socket,
5962
.password=&password,
5963
.cancelled_filenames=&cancelled_filenames,
5964
.mandos_client_exited=(bool[]){false},
5965
.password_is_read=&password_is_read,
5966
.current_time=(mono_microsecs[]){0},
5967
};
5968
g_assert_nonnull(task.question_filename);
5969
5970
task.func(task, queue);
5971
5972
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
5973
5974
const task_context *const added_task
5975
= find_matching_task(queue, task);
5976
g_assert_nonnull(added_task);
5977
g_assert_cmpuint((unsigned int)password.length, ==, 0);
5978
g_assert_true(password_is_read);
5979
5980
g_assert_cmpint(added_task->fd, >, 0);
5981
g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,
5982
EPOLLOUT));
5983
}
5984
5985
static void
5986
test_send_password_to_socket_password_not_read(__attribute__((unused))
5987
test_fixture *fixture,
5988
__attribute__((unused))
5989
gconstpointer
5990
user_data){
5991
__attribute__((cleanup(cleanup_close)))
5992
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
5993
g_assert_cmpint(epoll_fd, >=, 0);
5994
__attribute__((cleanup(cleanup_string)))
5995
char *const question_filename = strdup("/nonexistent/question");
5996
g_assert_nonnull(question_filename);
5997
__attribute__((cleanup(cleanup_string)))
5998
char *const filename = strdup("/nonexistent/socket");
5999
__attribute__((cleanup(string_set_clear)))
6000
string_set cancelled_filenames = {};
6001
buffer password = {};
6002
__attribute__((cleanup(cleanup_queue)))
6003
task_queue *queue = create_queue();
6004
g_assert_nonnull(queue);
6005
int socketfds[2];
6006
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
6007
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
6008
socketfds), ==, 0);
6009
__attribute__((cleanup(cleanup_close)))
6010
const int read_socket = socketfds[0];
6011
const int write_socket = socketfds[1];
6012
task_context task = {
6013
.func=send_password_to_socket,
6014
.question_filename=strdup(question_filename),
6015
.filename=strdup(filename),
6016
.epoll_fd=epoll_fd,
6017
.fd=write_socket,
6018
.password=&password,
6019
.cancelled_filenames=&cancelled_filenames,
6020
.mandos_client_exited=(bool[]){false},
6021
.password_is_read=(bool[]){false},
6022
.current_time=(mono_microsecs[]){0},
6023
};
6024
g_assert_nonnull(task.question_filename);
6025
6026
task.func(task, queue);
6027
6028
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
6029
6030
const task_context *const added_task = find_matching_task(queue,
6031
task);
6032
g_assert_nonnull(added_task);
6033
g_assert_cmpuint((unsigned int)password.length, ==, 0);
6034
g_assert_true(queue->next_run == 0);
6035
6036
g_assert_cmpint(added_task->fd, >, 0);
6037
g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,
6038
EPOLLOUT));
6039
}
6040
6041
static
6042
void test_send_password_to_socket_EMSGSIZE(__attribute__((unused))
6043
test_fixture *fixture,
6044
__attribute__((unused))
6045
gconstpointer user_data){
6046
__attribute__((cleanup(cleanup_close)))
6047
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6048
g_assert_cmpint(epoll_fd, >=, 0);
6049
const char question_filename[] = "/nonexistent/question";
6050
char *const filename = strdup("/nonexistent/socket");
6051
__attribute__((cleanup(string_set_clear)))
6052
string_set cancelled_filenames = {};
6053
int socketfds[2];
6054
6055
/* Find a message size which triggers EMSGSIZE */
6056
__attribute__((cleanup(cleanup_string)))
6057
char *message_buffer = NULL;
6058
size_t message_size = PIPE_BUF + 1;
6059
for(ssize_t ssret = 0; ssret >= 0; message_size += 1024){
6060
if(message_size >= 1024*1024*1024){ /* 1 GiB */
6061
g_test_skip("Skipping EMSGSIZE test: Will not try 1GiB");
6062
return;
6063
}
6064
message_buffer = realloc(message_buffer, message_size);
6065
if(message_buffer == NULL){
6066
g_test_skip("Skipping EMSGSIZE test");
6067
g_test_message("Failed to malloc() %" PRIuMAX " bytes",
6068
(uintmax_t)message_size);
6069
return;
6070
}
6071
/* Fill buffer with 'x' */
6072
memset(message_buffer, 'x', message_size);
6073
/* Create a new socketpair for each message size to avoid having
6074
to empty the pipe by reading the message to a separate buffer
6075
*/
6076
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
6077
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
6078
socketfds), ==, 0);
6079
ssret = send(socketfds[1], message_buffer, message_size,
6080
MSG_NOSIGNAL);
6081
error_t saved_errno = errno;
6082
g_assert_cmpint(close(socketfds[0]), ==, 0);
6083
g_assert_cmpint(close(socketfds[1]), ==, 0);
6084
6085
if(ssret < 0){
6086
if(saved_errno != EMSGSIZE) {
6087
g_test_skip("Skipping EMSGSIZE test");
6088
g_test_message("Error on send(%" PRIuMAX " bytes): %s",
6089
(uintmax_t)message_size,
6090
strerror(saved_errno));
6091
return;
6092
}
6093
break;
6094
} else if(ssret != (ssize_t)message_size){
6095
g_test_skip("Skipping EMSGSIZE test");
6096
g_test_message("Partial send(): %" PRIuMAX " of %" PRIdMAX
6097
" bytes", (uintmax_t)ssret,
6098
(intmax_t)message_size);
6099
return;
6100
}
6101
}
6102
g_test_message("EMSGSIZE triggered by %" PRIdMAX " bytes",
6103
(intmax_t)message_size);
6104
6105
buffer password = {
6106
.data=message_buffer,
6107
.length=message_size - 2, /* Compensate for added '+' and NUL */
6108
.allocated=message_size,
6109
};
6110
if(mlock(password.data, password.allocated) != 0){
6111
g_assert_true(errno == EPERM or errno == ENOMEM);
6112
}
6113
6114
__attribute__((cleanup(cleanup_queue)))
6115
task_queue *queue = create_queue();
6116
g_assert_nonnull(queue);
6117
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
6118
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
6119
socketfds), ==, 0);
6120
__attribute__((cleanup(cleanup_close)))
6121
const int read_socket = socketfds[0];
6122
__attribute__((cleanup(cleanup_close)))
6123
const int write_socket = socketfds[1];
6124
task_context task = {
6125
.func=send_password_to_socket,
6126
.question_filename=strdup(question_filename),
6127
.filename=filename,
6128
.epoll_fd=epoll_fd,
6129
.fd=write_socket,
6130
.password=&password,
6131
.cancelled_filenames=&cancelled_filenames,
6132
.mandos_client_exited=(bool[]){true},
6133
.password_is_read=(bool[]){true},
6134
.current_time=(mono_microsecs[]){0},
6135
};
6136
g_assert_nonnull(task.question_filename);
6137
6138
run_task_with_stderr_to_dev_null(task, queue);
6139
6140
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
6141
g_assert_true(string_set_contains(cancelled_filenames,
6142
question_filename));
6143
}
6144
6145
static void test_send_password_to_socket_retry(__attribute__((unused))
6146
test_fixture *fixture,
6147
__attribute__((unused))
6148
gconstpointer
6149
user_data){
6150
__attribute__((cleanup(cleanup_close)))
6151
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6152
g_assert_cmpint(epoll_fd, >=, 0);
6153
__attribute__((cleanup(cleanup_string)))
6154
char *const question_filename = strdup("/nonexistent/question");
6155
g_assert_nonnull(question_filename);
6156
__attribute__((cleanup(cleanup_string)))
6157
char *const filename = strdup("/nonexistent/socket");
6158
g_assert_nonnull(filename);
6159
__attribute__((cleanup(string_set_clear)))
6160
string_set cancelled_filenames = {};
6161
__attribute__((cleanup(cleanup_buffer)))
6162
buffer password = {};
6163
6164
__attribute__((cleanup(cleanup_queue)))
6165
task_queue *queue = create_queue();
6166
g_assert_nonnull(queue);
6167
int socketfds[2];
6168
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
6169
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
6170
socketfds), ==, 0);
6171
__attribute__((cleanup(cleanup_close)))
6172
const int read_socket = socketfds[0];
6173
const int write_socket = socketfds[1];
6174
/* Close the server side socket to force ECONNRESET on client */
6175
g_assert_cmpint(close(read_socket), ==, 0);
6176
task_context task = {
6177
.func=send_password_to_socket,
6178
.question_filename=strdup(question_filename),
6179
.filename=strdup(filename),
6180
.epoll_fd=epoll_fd,
6181
.fd=write_socket,
6182
.password=&password,
6183
.cancelled_filenames=&cancelled_filenames,
6184
.mandos_client_exited=(bool[]){true},
6185
.password_is_read=(bool[]){true},
6186
.current_time=(mono_microsecs[]){0},
6187
};
6188
g_assert_nonnull(task.question_filename);
6189
6190
task.func(task, queue);
6191
6192
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
6193
6194
const task_context *const added_task = find_matching_task(queue,
6195
task);
6196
g_assert_nonnull(added_task);
6197
g_assert_cmpuint((unsigned int)password.length, ==, 0);
6198
6199
g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,
6200
EPOLLOUT));
6201
}
6202
6203
static
6204
void test_send_password_to_socket_bad_epoll(__attribute__((unused))
6205
test_fixture *fixture,
6206
__attribute__((unused))
6207
gconstpointer user_data){
6208
__attribute__((cleanup(cleanup_close)))
6209
const int epoll_fd = open("/dev/null",
6210
O_WRONLY | O_CLOEXEC | O_NOCTTY);
6211
__attribute__((cleanup(cleanup_string)))
6212
char *const question_filename = strdup("/nonexistent/question");
6213
g_assert_nonnull(question_filename);
6214
__attribute__((cleanup(cleanup_string)))
6215
char *const filename = strdup("/nonexistent/socket");
6216
g_assert_nonnull(filename);
6217
__attribute__((cleanup(string_set_clear)))
6218
string_set cancelled_filenames = {};
6219
__attribute__((cleanup(cleanup_buffer)))
6220
buffer password = {};
6221
6222
const mono_microsecs current_time = 11;
6223
__attribute__((cleanup(cleanup_queue)))
6224
task_queue *queue = create_queue();
6225
g_assert_nonnull(queue);
6226
int socketfds[2];
6227
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
6228
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
6229
socketfds), ==, 0);
6230
__attribute__((cleanup(cleanup_close)))
6231
const int read_socket = socketfds[0];
6232
const int write_socket = socketfds[1];
6233
/* Close the server side socket to force ECONNRESET on client */
6234
g_assert_cmpint(close(read_socket), ==, 0);
6235
task_context task = {
6236
.func=send_password_to_socket,
6237
.question_filename=strdup(question_filename),
6238
.filename=strdup(filename),
6239
.epoll_fd=epoll_fd,
6240
.fd=write_socket,
6241
.password=&password,
6242
.cancelled_filenames=&cancelled_filenames,
6243
.mandos_client_exited=(bool[]){true},
6244
.password_is_read=(bool[]){true},
6245
.current_time=¤t_time,
6246
};
6247
g_assert_nonnull(task.question_filename);
6248
6249
run_task_with_stderr_to_dev_null(task, queue);
6250
6251
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
6252
6253
const task_context *const added_task = find_matching_task(queue,
6254
task);
6255
g_assert_nonnull(added_task);
6256
g_assert_true(queue->next_run == current_time + 1000000);
6257
g_assert_cmpuint((unsigned int)password.length, ==, 0);
6258
}
6259
6260
static void assert_send_password_to_socket_password(buffer password){
6261
__attribute__((cleanup(cleanup_close)))
6262
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6263
g_assert_cmpint(epoll_fd, >=, 0);
6264
char *const question_filename = strdup("/nonexistent/question");
6265
g_assert_nonnull(question_filename);
6266
char *const filename = strdup("/nonexistent/socket");
6267
g_assert_nonnull(filename);
6268
__attribute__((cleanup(string_set_clear)))
6269
string_set cancelled_filenames = {};
6270
6271
__attribute__((cleanup(cleanup_queue)))
6272
task_queue *queue = create_queue();
6273
g_assert_nonnull(queue);
6274
int socketfds[2];
6275
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
6276
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
6277
socketfds), ==, 0);
6278
__attribute__((cleanup(cleanup_close)))
6279
const int read_socket = socketfds[0];
6280
const int write_socket = socketfds[1];
6281
task_context task = {
6282
.func=send_password_to_socket,
6283
.question_filename=question_filename,
6284
.filename=filename,
6285
.epoll_fd=epoll_fd,
6286
.fd=write_socket,
6287
.password=&password,
6288
.cancelled_filenames=&cancelled_filenames,
6289
.mandos_client_exited=(bool[]){true},
6290
.password_is_read=(bool[]){true},
6291
.current_time=(mono_microsecs[]){0},
6292
};
6293
6294
char *expected_written_data = malloc(password.length + 2);
6295
g_assert_nonnull(expected_written_data);
6296
expected_written_data[0] = '+';
6297
expected_written_data[password.length + 1] = '\0';
6298
if(password.length > 0){
6299
g_assert_nonnull(password.data);
6300
memcpy(expected_written_data + 1, password.data, password.length);
6301
}
6302
6303
task.func(task, queue);
6304
6305
char buf[PIPE_BUF];
6306
g_assert_cmpint((int)read(read_socket, buf, PIPE_BUF), ==,
6307
(int)(password.length + 2));
6308
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
6309
6310
g_assert_true(memcmp(expected_written_data, buf,
6311
password.length + 2) == 0);
6312
6313
g_assert_true(epoll_set_does_not_contain(epoll_fd, write_socket));
6314
6315
free(expected_written_data);
6316
}
6317
6318
static void
6319
test_send_password_to_socket_null_password(__attribute__((unused))
6320
test_fixture *fixture,
6321
__attribute__((unused))
6322
gconstpointer user_data){
6323
__attribute__((cleanup(cleanup_buffer)))
6324
buffer password = {};
6325
assert_send_password_to_socket_password(password);
6326
}
6327
6328
static void
6329
test_send_password_to_socket_empty_password(__attribute__((unused))
6330
test_fixture *fixture,
6331
__attribute__((unused))
6332
gconstpointer user_data){
6333
__attribute__((cleanup(cleanup_buffer)))
6334
buffer password = {
6335
.data=malloc(1), /* because malloc(0) may return NULL */
6336
.length=0,
6337
.allocated=0, /* deliberate lie */
6338
};
6339
g_assert_nonnull(password.data);
6340
assert_send_password_to_socket_password(password);
6341
}
6342
6343
static void
6344
test_send_password_to_socket_empty_str_pass(__attribute__((unused))
6345
test_fixture *fixture,
6346
__attribute__((unused))
6347
gconstpointer user_data){
6348
__attribute__((cleanup(cleanup_buffer)))
6349
buffer password = {
6350
.data=strdup(""),
6351
.length=0,
6352
.allocated=1,
6353
};
6354
if(mlock(password.data, password.allocated) != 0){
6355
g_assert_true(errno == EPERM or errno == ENOMEM);
6356
}
6357
assert_send_password_to_socket_password(password);
6358
}
6359
6360
static void
6361
test_send_password_to_socket_text_password(__attribute__((unused))
6362
test_fixture *fixture,
6363
__attribute__((unused))
6364
gconstpointer user_data){
6365
const char dummy_test_password[] = "dummy test password";
6366
__attribute__((cleanup(cleanup_buffer)))
6367
buffer password = {
6368
.data = strdup(dummy_test_password),
6369
.length = strlen(dummy_test_password),
6370
.allocated = sizeof(dummy_test_password),
6371
};
6372
if(mlock(password.data, password.allocated) != 0){
6373
g_assert_true(errno == EPERM or errno == ENOMEM);
6374
}
6375
assert_send_password_to_socket_password(password);
6376
}
6377
6378
static void
6379
test_send_password_to_socket_binary_password(__attribute__((unused))
6380
test_fixture *fixture,
6381
__attribute__((unused))
6382
gconstpointer user_data){
6383
__attribute__((cleanup(cleanup_buffer)))
6384
buffer password = {
6385
.data=malloc(255),
6386
.length=255,
6387
.allocated=255,
6388
};
6389
g_assert_nonnull(password.data);
6390
if(mlock(password.data, password.allocated) != 0){
6391
g_assert_true(errno == EPERM or errno == ENOMEM);
6392
}
6393
char c = 1; /* Start at 1, avoiding NUL */
6394
for(int i=0; i < 255; i++){
6395
password.data[i] = c++;
6396
}
6397
assert_send_password_to_socket_password(password);
6398
}
6399
6400
static void
6401
test_send_password_to_socket_nuls_in_password(__attribute__((unused))
6402
test_fixture *fixture,
6403
__attribute__((unused))
6404
gconstpointer
6405
user_data){
6406
char test_password[] = {'\0', 'a', '\0', 'b', '\0', 'c', '\0'};
6407
__attribute__((cleanup(cleanup_buffer)))
6408
buffer password = {
6409
.data=malloc(sizeof(test_password)),
6410
.length=sizeof(test_password),
6411
.allocated=sizeof(test_password),
6412
};
6413
g_assert_nonnull(password.data);
6414
if(mlock(password.data, password.allocated) !=0){
6415
g_assert_true(errno == EPERM or errno == ENOMEM);
6416
}
6417
memcpy(password.data, test_password, password.allocated);
6418
assert_send_password_to_socket_password(password);
6419
}
6420
6421
static bool assert_add_existing_questions_to_devnull(task_queue
6422
*const,
6423
const int,
6424
buffer *const,
6425
string_set *,
6426
const
6427
mono_microsecs
6428
*const,
6429
bool *const,
6430
bool *const,
6431
const char
6432
*const);
6433
6434
static void test_add_existing_questions_ENOENT(__attribute__((unused))
6435
test_fixture *fixture,
6436
__attribute__((unused))
6437
gconstpointer
6438
user_data){
6439
__attribute__((cleanup(cleanup_queue)))
6440
task_queue *queue = create_queue();
6441
g_assert_nonnull(queue);
6442
__attribute__((cleanup(cleanup_close)))
6443
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6444
g_assert_cmpint(epoll_fd, >=, 0);
6445
__attribute__((cleanup(string_set_clear)))
6446
string_set cancelled_filenames = {};
6447
6448
g_assert_false(assert_add_existing_questions_to_devnull
6449
(queue,
6450
epoll_fd,
6451
(buffer[]){{}}, /* password */
6452
&cancelled_filenames,
6453
(mono_microsecs[]){0}, /* current_time */
6454
(bool[]){false}, /* mandos_client_exited */
6455
(bool[]){false}, /* password_is_read */
6456
"/nonexistent")); /* dirname */
6457
6458
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
6459
}
6460
6461
static
6462
bool assert_add_existing_questions_to_devnull(task_queue
6463
*const queue,
6464
const int
6465
epoll_fd,
6466
buffer *const
6467
password,
6468
string_set
6469
*cancelled_filenames,
6470
const mono_microsecs
6471
*const current_time,
6472
bool *const
6473
mandos_client_exited,
6474
bool *const
6475
password_is_read,
6476
const char *const
6477
dirname){
6478
__attribute__((cleanup(cleanup_close)))
6479
const int devnull_fd = open("/dev/null",
6480
O_WRONLY | O_CLOEXEC | O_NOCTTY);
6481
g_assert_cmpint(devnull_fd, >=, 0);
6482
__attribute__((cleanup(cleanup_close)))
6483
const int real_stderr_fd = dup(STDERR_FILENO);
6484
g_assert_cmpint(real_stderr_fd, >=, 0);
6485
dup2(devnull_fd, STDERR_FILENO);
6486
const bool ret = add_existing_questions(queue, epoll_fd, password,
6487
cancelled_filenames,
6488
current_time,
6489
mandos_client_exited,
6490
password_is_read, dirname);
6491
dup2(real_stderr_fd, STDERR_FILENO);
6492
return ret;
6493
}
6494
6495
static
6496
void test_add_existing_questions_no_questions(__attribute__((unused))
6497
test_fixture *fixture,
6498
__attribute__((unused))
6499
gconstpointer
6500
user_data){
6501
__attribute__((cleanup(cleanup_queue)))
6502
task_queue *queue = create_queue();
6503
g_assert_nonnull(queue);
6504
__attribute__((cleanup(cleanup_close)))
6505
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6506
g_assert_cmpint(epoll_fd, >=, 0);
6507
__attribute__((cleanup(string_set_clear)))
6508
string_set cancelled_filenames = {};
6509
__attribute__((cleanup(cleanup_string)))
6510
char *tempdir = make_temporary_directory();
6511
g_assert_nonnull(tempdir);
6512
6513
g_assert_false(assert_add_existing_questions_to_devnull
6514
(queue,
6515
epoll_fd,
6516
(buffer[]){{}}, /* password */
6517
&cancelled_filenames,
6518
(mono_microsecs[]){0}, /* current_time */
6519
(bool[]){false}, /* mandos_client_exited */
6520
(bool[]){false}, /* password_is_read */
6521
tempdir));
6522
6523
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
6524
6525
g_assert_cmpint(rmdir(tempdir), ==, 0);
6526
}
6527
6528
static char *make_question_file_in_directory(const char *const);
6529
6530
static
6531
void test_add_existing_questions_one_question(__attribute__((unused))
6532
test_fixture *fixture,
6533
__attribute__((unused))
6534
gconstpointer
6535
user_data){
6536
__attribute__((cleanup(cleanup_queue)))
6537
task_queue *queue = create_queue();
6538
g_assert_nonnull(queue);
6539
__attribute__((cleanup(cleanup_close)))
6540
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6541
g_assert_cmpint(epoll_fd, >=, 0);
6542
__attribute__((cleanup(cleanup_buffer)))
6543
buffer password = {};
6544
__attribute__((cleanup(string_set_clear)))
6545
string_set cancelled_filenames = {};
6546
const mono_microsecs current_time = 0;
6547
bool mandos_client_exited = false;
6548
bool password_is_read = false;
6549
__attribute__((cleanup(cleanup_string)))
6550
char *tempdir = make_temporary_directory();
6551
g_assert_nonnull(tempdir);
6552
__attribute__((cleanup(cleanup_string)))
6553
char *question_filename
6554
= make_question_file_in_directory(tempdir);
6555
g_assert_nonnull(question_filename);
6556
6557
g_assert_true(assert_add_existing_questions_to_devnull
6558
(queue,
6559
epoll_fd,
6560
&password,
6561
&cancelled_filenames,
6562
¤t_time,
6563
&mandos_client_exited,
6564
&password_is_read,
6565
tempdir));
6566
6567
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
6568
6569
g_assert_nonnull(find_matching_task(queue, (task_context){
6570
.func=open_and_parse_question,
6571
.epoll_fd=epoll_fd,
6572
.filename=question_filename,
6573
.question_filename=question_filename,
6574
.password=&password,
6575
.cancelled_filenames=&cancelled_filenames,
6576
.current_time=¤t_time,
6577
.mandos_client_exited=&mandos_client_exited,
6578
.password_is_read=&password_is_read,
6579
}));
6580
6581
g_assert_true(queue->next_run == 1);
6582
6583
g_assert_cmpint(unlink(question_filename), ==, 0);
6584
g_assert_cmpint(rmdir(tempdir), ==, 0);
6585
}
6586
6587
static char *make_question_file_in_directory(const char
6588
*const dir){
6589
return make_temporary_prefixed_file_in_directory("ask.", dir);
6590
}
6591
6592
static
6593
void test_add_existing_questions_two_questions(__attribute__((unused))
6594
test_fixture *fixture,
6595
__attribute__((unused))
6596
gconstpointer
6597
user_data){
6598
__attribute__((cleanup(cleanup_queue)))
6599
task_queue *queue = create_queue();
6600
g_assert_nonnull(queue);
6601
__attribute__((cleanup(cleanup_close)))
6602
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6603
g_assert_cmpint(epoll_fd, >=, 0);
6604
__attribute__((cleanup(cleanup_buffer)))
6605
buffer password = {};
6606
__attribute__((cleanup(string_set_clear)))
6607
string_set cancelled_filenames = {};
6608
const mono_microsecs current_time = 0;
6609
bool mandos_client_exited = false;
6610
bool password_is_read = false;
6611
__attribute__((cleanup(cleanup_string)))
6612
char *tempdir = make_temporary_directory();
6613
g_assert_nonnull(tempdir);
6614
__attribute__((cleanup(cleanup_string)))
6615
char *question_filename1
6616
= make_question_file_in_directory(tempdir);
6617
g_assert_nonnull(question_filename1);
6618
__attribute__((cleanup(cleanup_string)))
6619
char *question_filename2
6620
= make_question_file_in_directory(tempdir);
6621
g_assert_nonnull(question_filename2);
6622
6623
g_assert_true(assert_add_existing_questions_to_devnull
6624
(queue,
6625
epoll_fd,
6626
&password,
6627
&cancelled_filenames,
6628
¤t_time,
6629
&mandos_client_exited,
6630
&password_is_read,
6631
tempdir));
6632
6633
g_assert_cmpuint((unsigned int)queue->length, ==, 2);
6634
6635
g_assert_true(queue->next_run == 1);
6636
6637
__attribute__((cleanup(string_set_clear)))
6638
string_set seen_questions = {};
6639
6640
bool queue_contains_question_opener(char *const question_filename){
6641
return(find_matching_task(queue, (task_context){
6642
.func=open_and_parse_question,
6643
.epoll_fd=epoll_fd,
6644
.question_filename=question_filename,
6645
.password=&password,
6646
.cancelled_filenames=&cancelled_filenames,
6647
.current_time=¤t_time,
6648
.mandos_client_exited=&mandos_client_exited,
6649
.password_is_read=&password_is_read,
6650
}) != NULL);
6651
}
6652
6653
g_assert_true(queue_contains_question_opener(question_filename1));
6654
g_assert_true(queue_contains_question_opener(question_filename2));
6655
6656
g_assert_true(queue->next_run == 1);
6657
6658
g_assert_cmpint(unlink(question_filename1), ==, 0);
6659
g_assert_cmpint(unlink(question_filename2), ==, 0);
6660
g_assert_cmpint(rmdir(tempdir), ==, 0);
6661
}
6662
6663
static void
6664
test_add_existing_questions_non_questions(__attribute__((unused))
6665
test_fixture *fixture,
6666
__attribute__((unused))
6667
gconstpointer user_data){
6668
__attribute__((cleanup(cleanup_queue)))
6669
task_queue *queue = create_queue();
6670
g_assert_nonnull(queue);
6671
__attribute__((cleanup(cleanup_close)))
6672
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6673
g_assert_cmpint(epoll_fd, >=, 0);
6674
__attribute__((cleanup(string_set_clear)))
6675
string_set cancelled_filenames = {};
6676
__attribute__((cleanup(cleanup_string)))
6677
char *tempdir = make_temporary_directory();
6678
g_assert_nonnull(tempdir);
6679
__attribute__((cleanup(cleanup_string)))
6680
char *question_filename1
6681
= make_temporary_file_in_directory(tempdir);
6682
g_assert_nonnull(question_filename1);
6683
__attribute__((cleanup(cleanup_string)))
6684
char *question_filename2
6685
= make_temporary_file_in_directory(tempdir);
6686
g_assert_nonnull(question_filename2);
6687
6688
g_assert_false(assert_add_existing_questions_to_devnull
6689
(queue,
6690
epoll_fd,
6691
(buffer[]){{}}, /* password */
6692
&cancelled_filenames,
6693
(mono_microsecs[]){0}, /* current_time */
6694
(bool[]){false}, /* mandos_client_exited */
6695
(bool[]){false}, /* password_is_read */
6696
tempdir));
6697
6698
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
6699
6700
g_assert_cmpint(unlink(question_filename1), ==, 0);
6701
g_assert_cmpint(unlink(question_filename2), ==, 0);
6702
g_assert_cmpint(rmdir(tempdir), ==, 0);
6703
}
6704
6705
static void
6706
test_add_existing_questions_both_types(__attribute__((unused))
6707
test_fixture *fixture,
6708
__attribute__((unused))
6709
gconstpointer user_data){
6710
__attribute__((cleanup(cleanup_queue)))
6711
task_queue *queue = create_queue();
6712
g_assert_nonnull(queue);
6713
__attribute__((cleanup(cleanup_close)))
6714
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6715
g_assert_cmpint(epoll_fd, >=, 0);
6716
__attribute__((cleanup(cleanup_buffer)))
6717
buffer password = {};
6718
__attribute__((cleanup(string_set_clear)))
6719
string_set cancelled_filenames = {};
6720
const mono_microsecs current_time = 0;
6721
bool mandos_client_exited = false;
6722
bool password_is_read = false;
6723
__attribute__((cleanup(cleanup_string)))
6724
char *tempdir = make_temporary_directory();
6725
g_assert_nonnull(tempdir);
6726
__attribute__((cleanup(cleanup_string)))
6727
char *tempfilename1 = make_temporary_file_in_directory(tempdir);
6728
g_assert_nonnull(tempfilename1);
6729
__attribute__((cleanup(cleanup_string)))
6730
char *tempfilename2 = make_temporary_file_in_directory(tempdir);
6731
g_assert_nonnull(tempfilename2);
6732
__attribute__((cleanup(cleanup_string)))
6733
char *question_filename
6734
= make_question_file_in_directory(tempdir);
6735
g_assert_nonnull(question_filename);
6736
6737
g_assert_true(assert_add_existing_questions_to_devnull
6738
(queue,
6739
epoll_fd,
6740
&password,
6741
&cancelled_filenames,
6742
¤t_time,
6743
&mandos_client_exited,
6744
&password_is_read,
6745
tempdir));
6746
6747
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
6748
6749
g_assert_nonnull(find_matching_task(queue, (task_context){
6750
.func=open_and_parse_question,
6751
.epoll_fd=epoll_fd,
6752
.filename=question_filename,
6753
.question_filename=question_filename,
6754
.password=&password,
6755
.cancelled_filenames=&cancelled_filenames,
6756
.current_time=¤t_time,
6757
.mandos_client_exited=&mandos_client_exited,
6758
.password_is_read=&password_is_read,
6759
}));
6760
6761
g_assert_true(queue->next_run == 1);
6762
6763
g_assert_cmpint(unlink(tempfilename1), ==, 0);
6764
g_assert_cmpint(unlink(tempfilename2), ==, 0);
6765
g_assert_cmpint(unlink(question_filename), ==, 0);
6766
g_assert_cmpint(rmdir(tempdir), ==, 0);
6767
}
6768
6769
static void test_wait_for_event_timeout(__attribute__((unused))
6770
test_fixture *fixture,
6771
__attribute__((unused))
6772
gconstpointer user_data){
6773
__attribute__((cleanup(cleanup_close)))
6774
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6775
g_assert_cmpint(epoll_fd, >=, 0);
6776
6777
g_assert_true(wait_for_event(epoll_fd, 1, 0));
6778
}
6779
6780
static void test_wait_for_event_event(__attribute__((unused))
6781
test_fixture *fixture,
6782
__attribute__((unused))
6783
gconstpointer user_data){
6784
__attribute__((cleanup(cleanup_close)))
6785
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6786
g_assert_cmpint(epoll_fd, >=, 0);
6787
int pipefds[2];
6788
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
6789
__attribute__((cleanup(cleanup_close)))
6790
const int read_pipe = pipefds[0];
6791
__attribute__((cleanup(cleanup_close)))
6792
const int write_pipe = pipefds[1];
6793
g_assert_cmpint(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, read_pipe,
6794
&(struct epoll_event)
6795
{ .events=EPOLLIN | EPOLLRDHUP }), ==, 0);
6796
g_assert_cmpint((int)write(write_pipe, "x", 1), ==, 1);
6797
6798
g_assert_true(wait_for_event(epoll_fd, 0, 0));
6799
}
6800
6801
static void test_wait_for_event_sigchld(test_fixture *fixture,
6802
__attribute__((unused))
6803
gconstpointer user_data){
6804
const pid_t pid = fork();
6805
if(pid == 0){ /* Child */
6806
if(not restore_signal_handler(&fixture->orig_sigaction)){
6807
_exit(EXIT_FAILURE);
6808
}
6809
if(not restore_sigmask(&fixture->orig_sigmask)){
6810
_exit(EXIT_FAILURE);
6811
}
6812
exit(EXIT_SUCCESS);
6813
}
6814
g_assert_true(pid != -1);
6815
__attribute__((cleanup(cleanup_close)))
6816
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6817
g_assert_cmpint(epoll_fd, >=, 0);
6818
6819
g_assert_true(wait_for_event(epoll_fd, 0, 0));
6820
6821
int status;
6822
g_assert_true(waitpid(pid, &status, 0) == pid);
6823
g_assert_true(WIFEXITED(status));
6824
g_assert_cmpint(WEXITSTATUS(status), ==, EXIT_SUCCESS);
6825
}
6826
6827
static void test_run_queue_zeroes_next_run(__attribute__((unused))
6828
test_fixture *fixture,
6829
__attribute__((unused))
6830
gconstpointer user_data){
6831
__attribute__((cleanup(cleanup_queue)))
6832
task_queue *queue = create_queue();
6833
g_assert_nonnull(queue);
6834
queue->next_run = 1;
6835
__attribute__((cleanup(cleanup_close)))
6836
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
6837
__attribute__((cleanup(string_set_clear)))
6838
string_set cancelled_filenames = {};
6839
bool quit_now = false;
6840
6841
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
6842
g_assert_false(quit_now);
6843
g_assert_cmpuint((unsigned int)queue->next_run, ==, 0);
6844
}
6845
6846
static
6847
void test_run_queue_clears_cancelled_filenames(__attribute__((unused))
6848
test_fixture *fixture,
6849
__attribute__((unused))
6850
gconstpointer
6851
user_data){
6852
__attribute__((cleanup(cleanup_queue)))
6853
task_queue *queue = create_queue();
6854
g_assert_nonnull(queue);
6855
__attribute__((cleanup(string_set_clear)))
6856
string_set cancelled_filenames = {};
6857
bool quit_now = false;
6858
const char question_filename[] = "/nonexistent/question_filename";
6859
g_assert_true(string_set_add(&cancelled_filenames,
6860
question_filename));
6861
6862
g_assert_true(add_to_queue(queue,
6863
(task_context){ .func=dummy_func }));
6864
6865
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
6866
g_assert_false(quit_now);
6867
g_assert_cmpuint((unsigned int)(queue->length), ==, 0);
6868
g_assert_false(string_set_contains(cancelled_filenames,
6869
question_filename));
6870
}
6871
6872
static
6873
void test_run_queue_skips_cancelled_filenames(__attribute__((unused))
6874
test_fixture *fixture,
6875
__attribute__((unused))
6876
gconstpointer
6877
user_data){
6878
__attribute__((cleanup(cleanup_queue)))
6879
task_queue *queue = create_queue();
6880
g_assert_nonnull(queue);
6881
__attribute__((cleanup(string_set_clear)))
6882
string_set cancelled_filenames = {};
6883
bool quit_now = false;
6884
int pipefds[2];
6885
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
6886
__attribute__((cleanup(cleanup_close)))
6887
const int read_pipe = pipefds[0];
6888
g_assert_cmpint(close(pipefds[1]), ==, 0);
6889
const char question_filename[] = "/nonexistent/question_filename";
6890
g_assert_true(string_set_add(&cancelled_filenames,
6891
question_filename));
6892
__attribute__((nonnull))
6893
void quit_func(const task_context task,
6894
__attribute__((unused)) task_queue *const q){
6895
g_assert_nonnull(task.quit_now);
6896
*task.quit_now = true;
6897
}
6898
task_context task = {
6899
.func=quit_func,
6900
.question_filename=strdup(question_filename),
6901
.quit_now=&quit_now,
6902
.fd=read_pipe,
6903
};
6904
g_assert_nonnull(task.question_filename);
6905
6906
g_assert_true(add_to_queue(queue, task));
6907
6908
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
6909
g_assert_false(quit_now);
6910
6911
/* read_pipe should be closed already */
6912
errno = 0;
6913
bool read_pipe_closed = (close(read_pipe) == -1);
6914
read_pipe_closed &= (errno == EBADF);
6915
g_assert_true(read_pipe_closed);
6916
}
6917
6918
static void test_run_queue_one_task(__attribute__((unused))
6919
test_fixture *fixture,
6920
__attribute__((unused))
6921
gconstpointer user_data){
6922
__attribute__((cleanup(cleanup_queue)))
6923
task_queue *queue = create_queue();
6924
g_assert_nonnull(queue);
6925
__attribute__((cleanup(string_set_clear)))
6926
string_set cancelled_filenames = {};
6927
bool quit_now = false;
6928
6929
__attribute__((nonnull))
6930
void next_run_func(__attribute__((unused))
6931
const task_context task,
6932
task_queue *const q){
6933
q->next_run = 1;
6934
}
6935
6936
task_context task = {
6937
.func=next_run_func,
6938
};
6939
g_assert_true(add_to_queue(queue, task));
6940
6941
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
6942
g_assert_cmpuint((unsigned int)(queue->next_run), ==, 1);
6943
g_assert_cmpuint((unsigned int)(queue->length), ==, 0);
6944
}
6945
6946
static void test_run_queue_two_tasks(__attribute__((unused))
6947
test_fixture *fixture,
6948
__attribute__((unused))
6949
gconstpointer user_data){
6950
__attribute__((cleanup(cleanup_queue)))
6951
task_queue *queue = create_queue();
6952
g_assert_nonnull(queue);
6953
queue->next_run = 1;
6954
__attribute__((cleanup(string_set_clear)))
6955
string_set cancelled_filenames = {};
6956
bool quit_now = false;
6957
bool mandos_client_exited = false;
6958
6959
__attribute__((nonnull))
6960
void next_run_func(__attribute__((unused))
6961
const task_context task,
6962
task_queue *const q){
6963
q->next_run = 1;
6964
}
6965
6966
__attribute__((nonnull))
6967
void exited_func(const task_context task,
6968
__attribute__((unused)) task_queue *const q){
6969
*task.mandos_client_exited = true;
6970
}
6971
6972
task_context task1 = {
6973
.func=next_run_func,
6974
};
6975
g_assert_true(add_to_queue(queue, task1));
6976
6977
task_context task2 = {
6978
.func=exited_func,
6979
.mandos_client_exited=&mandos_client_exited,
6980
};
6981
g_assert_true(add_to_queue(queue, task2));
6982
6983
g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));
6984
g_assert_false(quit_now);
6985
g_assert_cmpuint((unsigned int)(queue->next_run), ==, 1);
6986
g_assert_true(mandos_client_exited);
6987
g_assert_cmpuint((unsigned int)(queue->length), ==, 0);
6988
}
6989
6990
static void test_run_queue_two_tasks_quit(__attribute__((unused))
6991
test_fixture *fixture,
6992
__attribute__((unused))
6993
gconstpointer user_data){
6994
__attribute__((cleanup(cleanup_queue)))
6995
task_queue *queue = create_queue();
6996
g_assert_nonnull(queue);
6997
__attribute__((cleanup(string_set_clear)))
6998
string_set cancelled_filenames = {};
6999
bool quit_now = false;
7000
bool mandos_client_exited = false;
7001
bool password_is_read = false;
7002
7003
__attribute__((nonnull))
7004
void set_exited_func(const task_context task,
7005
__attribute__((unused)) task_queue *const q){
7006
*task.mandos_client_exited = true;
7007
*task.quit_now = true;
7008
}
7009
task_context task1 = {
7010
.func=set_exited_func,
7011
.quit_now=&quit_now,
7012
.mandos_client_exited=&mandos_client_exited,
7013
};
7014
g_assert_true(add_to_queue(queue, task1));
7015
7016
__attribute__((nonnull))
7017
void set_read_func(const task_context task,
7018
__attribute__((unused)) task_queue *const q){
7019
*task.quit_now = true;
7020
*task.password_is_read = true;
7021
}
7022
task_context task2 = {
7023
.func=set_read_func,
7024
.quit_now=&quit_now,
7025
.password_is_read=&password_is_read,
7026
};
7027
g_assert_true(add_to_queue(queue, task2));
7028
7029
g_assert_false(run_queue(&queue, &cancelled_filenames, &quit_now));
7030
g_assert_true(quit_now);
7031
g_assert_true(mandos_client_exited xor password_is_read);
7032
g_assert_cmpuint((unsigned int)(queue->length), ==, 0);
7033
}
7034
7035
static void test_run_queue_two_tasks_cleanup(__attribute__((unused))
7036
test_fixture *fixture,
7037
__attribute__((unused))
7038
gconstpointer user_data){
7039
__attribute__((cleanup(cleanup_queue)))
7040
task_queue *queue = create_queue();
7041
g_assert_nonnull(queue);
7042
__attribute__((cleanup(string_set_clear)))
7043
string_set cancelled_filenames = {};
7044
int pipefds[2];
7045
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
7046
__attribute__((cleanup(cleanup_close)))
7047
const int read_pipe = pipefds[0];
7048
__attribute__((cleanup(cleanup_close)))
7049
const int write_pipe = pipefds[1];
7050
bool quit_now = false;
7051
7052
__attribute__((nonnull))
7053
void read_func(const task_context task,
7054
__attribute__((unused)) task_queue *const q){
7055
*task.quit_now = true;
7056
}
7057
task_context task1 = {
7058
.func=read_func,
7059
.quit_now=&quit_now,
7060
.fd=read_pipe,
7061
};
7062
g_assert_true(add_to_queue(queue, task1));
7063
7064
__attribute__((nonnull))
7065
void write_func(const task_context task,
7066
__attribute__((unused)) task_queue *const q){
7067
*task.quit_now = true;
7068
}
7069
task_context task2 = {
7070
.func=write_func,
7071
.quit_now=&quit_now,
7072
.fd=write_pipe,
7073
};
7074
g_assert_true(add_to_queue(queue, task2));
7075
7076
g_assert_false(run_queue(&queue, &cancelled_filenames, &quit_now));
7077
g_assert_true(quit_now);
7078
7079
/* Either read_pipe or write_pipe should be closed already */
7080
errno = 0;
7081
bool close_read_pipe = (close(read_pipe) == -1);
7082
close_read_pipe &= (errno == EBADF);
7083
errno = 0;
7084
bool close_write_pipe = (close(write_pipe) == -1);
7085
close_write_pipe &= (errno == EBADF);
7086
g_assert_true(close_read_pipe xor close_write_pipe);
7087
g_assert_cmpuint((unsigned int)(queue->length), ==, 0);
7088
}
7089
7090
static void test_setup_signal_handler(__attribute__((unused))
7091
test_fixture *fixture,
7092
__attribute__((unused))
7093
gconstpointer user_data){
7094
/* Save current SIGCHLD action, whatever it is */
7095
struct sigaction expected_sigchld_action;
7096
g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),
7097
==, 0);
7098
7099
/* Act; i.e. run the setup_signal_handler() function */
7100
struct sigaction actual_old_sigchld_action;
7101
g_assert_true(setup_signal_handler(&actual_old_sigchld_action));
7102
7103
/* Check that the function correctly set "actual_old_sigchld_action"
7104
to the same values as the previously saved
7105
"expected_sigchld_action" */
7106
/* Check member sa_handler */
7107
g_assert_true(actual_old_sigchld_action.sa_handler
7108
== expected_sigchld_action.sa_handler);
7109
/* Check member sa_mask */
7110
for(int signum = 1; signum < NSIG; signum++){
7111
const int expected_old_block_state
7112
= sigismember(&expected_sigchld_action.sa_mask, signum);
7113
g_assert_cmpint(expected_old_block_state, >=, 0);
7114
const int actual_old_block_state
7115
= sigismember(&actual_old_sigchld_action.sa_mask, signum);
7116
g_assert_cmpint(actual_old_block_state, >=, 0);
7117
g_assert_cmpint(actual_old_block_state,
7118
==, expected_old_block_state);
7119
}
7120
/* Check member sa_flags */
7121
g_assert_true((actual_old_sigchld_action.sa_flags
7122
& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))
7123
== (expected_sigchld_action.sa_flags
7124
& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));
7125
7126
/* Retrieve the current signal handler for SIGCHLD as set by
7127
setup_signal_handler() */
7128
struct sigaction actual_new_sigchld_action;
7129
g_assert_cmpint(sigaction(SIGCHLD, NULL,
7130
&actual_new_sigchld_action), ==, 0);
7131
/* Check that the signal handler (member sa_handler) is correctly
7132
set to the "handle_sigchld" function */
7133
g_assert_true(actual_new_sigchld_action.sa_handler != SIG_DFL);
7134
g_assert_true(actual_new_sigchld_action.sa_handler != SIG_IGN);
7135
g_assert_true(actual_new_sigchld_action.sa_handler
7136
== handle_sigchld);
7137
/* Check (in member sa_mask) that at least a handful of signals are
7138
actually blocked during the signal handler */
7139
for(int signum = 1; signum < NSIG; signum++){
7140
int actual_new_block_state;
7141
switch(signum){
7142
case SIGTERM:
7143
case SIGINT:
7144
case SIGQUIT:
7145
case SIGHUP:
7146
actual_new_block_state
7147
= sigismember(&actual_new_sigchld_action.sa_mask, signum);
7148
g_assert_cmpint(actual_new_block_state, ==, 1);
7149
continue;
7150
case SIGKILL: /* non-blockable */
7151
case SIGSTOP: /* non-blockable */
7152
case SIGCHLD: /* always blocked */
7153
default:
7154
continue;
7155
}
7156
}
7157
/* Check member sa_flags */
7158
g_assert_true((actual_new_sigchld_action.sa_flags
7159
& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))
7160
== (SA_NOCLDSTOP | SA_RESTART));
7161
7162
/* Restore signal handler */
7163
g_assert_cmpint(sigaction(SIGCHLD, &expected_sigchld_action, NULL),
7164
==, 0);
7165
}
7166
7167
static void test_restore_signal_handler(__attribute__((unused))
7168
test_fixture *fixture,
7169
__attribute__((unused))
7170
gconstpointer user_data){
7171
/* Save current SIGCHLD action, whatever it is */
7172
struct sigaction expected_sigchld_action;
7173
g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),
7174
==, 0);
7175
/* Since we haven't established a signal handler yet, there should
7176
not be one established. But another test may have relied on
7177
restore_signal_handler() to restore the signal handler, and if
7178
restore_signal_handler() is buggy (which we should be prepared
7179
for in this test) the signal handler may not have been restored
7180
properly; check for this: */
7181
g_assert_true(expected_sigchld_action.sa_handler != handle_sigchld);
7182
7183
/* Establish a signal handler */
7184
struct sigaction sigchld_action = {
7185
.sa_handler=handle_sigchld,
7186
.sa_flags=SA_RESTART | SA_NOCLDSTOP,
7187
};
7188
g_assert_cmpint(sigfillset(&sigchld_action.sa_mask), ==, 0);
7189
g_assert_cmpint(sigaction(SIGCHLD, &sigchld_action, NULL), ==, 0);
7190
7191
/* Act; i.e. run the restore_signal_handler() function */
7192
g_assert_true(restore_signal_handler(&expected_sigchld_action));
7193
7194
/* Retrieve the restored signal handler data */
7195
struct sigaction actual_restored_sigchld_action;
7196
g_assert_cmpint(sigaction(SIGCHLD, NULL,
7197
&actual_restored_sigchld_action), ==, 0);
7198
7199
/* Check that the function correctly restored the signal action, as
7200
saved in "actual_restored_sigchld_action", to the same values as
7201
the previously saved "expected_sigchld_action" */
7202
/* Check member sa_handler */
7203
g_assert_true(actual_restored_sigchld_action.sa_handler
7204
== expected_sigchld_action.sa_handler);
7205
/* Check member sa_mask */
7206
for(int signum = 1; signum < NSIG; signum++){
7207
const int expected_old_block_state
7208
= sigismember(&expected_sigchld_action.sa_mask, signum);
7209
g_assert_cmpint(expected_old_block_state, >=, 0);
7210
const int actual_restored_block_state
7211
= sigismember(&actual_restored_sigchld_action.sa_mask, signum);
7212
g_assert_cmpint(actual_restored_block_state, >=, 0);
7213
g_assert_cmpint(actual_restored_block_state,
7214
==, expected_old_block_state);
7215
}
7216
/* Check member sa_flags */
7217
g_assert_true((actual_restored_sigchld_action.sa_flags
7218
& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))
7219
== (expected_sigchld_action.sa_flags
7220
& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));
7221
}
7222
7223
static void test_block_sigchld(__attribute__((unused))
7224
test_fixture *fixture,
7225
__attribute__((unused))
7226
gconstpointer user_data){
7227
/* Save original signal mask */
7228
sigset_t expected_sigmask;
7229
g_assert_cmpint(pthread_sigmask(-1, NULL, &expected_sigmask),
7230
==, 0);
7231
7232
/* Make sure SIGCHLD is unblocked for this test */
7233
sigset_t sigchld_sigmask;
7234
g_assert_cmpint(sigemptyset(&sigchld_sigmask), ==, 0);
7235
g_assert_cmpint(sigaddset(&sigchld_sigmask, SIGCHLD), ==, 0);
7236
g_assert_cmpint(pthread_sigmask(SIG_UNBLOCK, &sigchld_sigmask,
7237
NULL), ==, 0);
7238
7239
/* Act; i.e. run the block_sigchld() function */
7240
sigset_t actual_old_sigmask;
7241
g_assert_true(block_sigchld(&actual_old_sigmask));
7242
7243
/* Check the actual_old_sigmask; it should be the same as the
7244
previously saved signal mask "expected_sigmask". */
7245
for(int signum = 1; signum < NSIG; signum++){
7246
const int expected_old_block_state
7247
= sigismember(&expected_sigmask, signum);
7248
g_assert_cmpint(expected_old_block_state, >=, 0);
7249
const int actual_old_block_state
7250
= sigismember(&actual_old_sigmask, signum);
7251
g_assert_cmpint(actual_old_block_state, >=, 0);
7252
g_assert_cmpint(actual_old_block_state,
7253
==, expected_old_block_state);
7254
}
7255
7256
/* Retrieve the newly set signal mask */
7257
sigset_t actual_sigmask;
7258
g_assert_cmpint(pthread_sigmask(-1, NULL, &actual_sigmask), ==, 0);
7259
7260
/* SIGCHLD should be blocked */
7261
g_assert_cmpint(sigismember(&actual_sigmask, SIGCHLD), ==, 1);
7262
7263
/* Restore signal mask */
7264
g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &expected_sigmask,
7265
NULL), ==, 0);
7266
}
7267
7268
static void test_restore_sigmask(__attribute__((unused))
7269
test_fixture *fixture,
7270
__attribute__((unused))
7271
gconstpointer user_data){
7272
/* Save original signal mask */
7273
sigset_t orig_sigmask;
7274
g_assert_cmpint(pthread_sigmask(-1, NULL, &orig_sigmask), ==, 0);
7275
7276
/* Make sure SIGCHLD is blocked for this test */
7277
sigset_t sigchld_sigmask;
7278
g_assert_cmpint(sigemptyset(&sigchld_sigmask), ==, 0);
7279
g_assert_cmpint(sigaddset(&sigchld_sigmask, SIGCHLD), ==, 0);
7280
g_assert_cmpint(pthread_sigmask(SIG_BLOCK, &sigchld_sigmask,
7281
NULL), ==, 0);
7282
7283
/* Act; i.e. run the restore_sigmask() function */
7284
g_assert_true(restore_sigmask(&orig_sigmask));
7285
7286
/* Retrieve the newly restored signal mask */
7287
sigset_t restored_sigmask;
7288
g_assert_cmpint(pthread_sigmask(-1, NULL, &restored_sigmask),
7289
==, 0);
7290
7291
/* Check the restored_sigmask; it should be the same as the
7292
previously saved signal mask "orig_sigmask". */
7293
for(int signum = 1; signum < NSIG; signum++){
7294
const int orig_block_state = sigismember(&orig_sigmask, signum);
7295
g_assert_cmpint(orig_block_state, >=, 0);
7296
const int restored_block_state = sigismember(&restored_sigmask,
7297
signum);
7298
g_assert_cmpint(restored_block_state, >=, 0);
7299
g_assert_cmpint(restored_block_state, ==, orig_block_state);
7300
}
7301
7302
/* Restore signal mask */
7303
g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &orig_sigmask,
7304
NULL), ==, 0);
7305
}
7306
7307
static void test_parse_arguments_noargs(__attribute__((unused))
7308
test_fixture *fixture,
7309
__attribute__((unused))
7310
gconstpointer user_data){
7311
char *argv[] = {
7312
strdup("prgname"),
7313
NULL };
7314
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7315
7316
char *agent_directory = NULL;
7317
char *helper_directory = NULL;
7318
uid_t user = 0;
7319
gid_t group = 0;
7320
char *mandos_argz = NULL;
7321
size_t mandos_argz_length = 0;
7322
7323
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7324
&helper_directory, &user, &group,
7325
&mandos_argz, &mandos_argz_length));
7326
g_assert_null(agent_directory);
7327
g_assert_null(helper_directory);
7328
g_assert_true(user == 0);
7329
g_assert_true(group == 0);
7330
g_assert_null(mandos_argz);
7331
g_assert_true(mandos_argz_length == 0);
7332
7333
for(char **arg = argv; *arg != NULL; arg++){
7334
free(*arg);
7335
}
7336
}
7337
7338
__attribute__((nonnull))
7339
static bool parse_arguments_devnull(int argc, char *argv[],
7340
const bool exit_failure,
7341
char **agent_directory,
7342
char **helper_directory,
7343
uid_t *const user,
7344
gid_t *const group,
7345
char **mandos_argz,
7346
size_t *mandos_argz_length){
7347
7348
FILE *real_stderr = stderr;
7349
FILE *devnull = fopen("/dev/null", "we");
7350
g_assert_nonnull(devnull);
7351
stderr = devnull;
7352
7353
const bool ret = parse_arguments(argc, argv, exit_failure,
7354
agent_directory,
7355
helper_directory, user, group,
7356
mandos_argz, mandos_argz_length);
7357
const error_t saved_errno = errno;
7358
7359
stderr = real_stderr;
7360
g_assert_cmpint(fclose(devnull), ==, 0);
7361
7362
errno = saved_errno;
7363
7364
return ret;
7365
}
7366
7367
static void test_parse_arguments_invalid(__attribute__((unused))
7368
test_fixture *fixture,
7369
__attribute__((unused))
7370
gconstpointer user_data){
7371
char *argv[] = {
7372
strdup("prgname"),
7373
strdup("--invalid"),
7374
NULL };
7375
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7376
7377
char *agent_directory = NULL;
7378
char *helper_directory = NULL;
7379
uid_t user = 0;
7380
gid_t group = 0;
7381
char *mandos_argz = NULL;
7382
size_t mandos_argz_length = 0;
7383
7384
g_assert_false(parse_arguments_devnull(argc, argv, false,
7385
&agent_directory,
7386
&helper_directory, &user,
7387
&group, &mandos_argz,
7388
&mandos_argz_length));
7389
7390
g_assert_true(errno == EINVAL);
7391
g_assert_null(agent_directory);
7392
g_assert_null(helper_directory);
7393
g_assert_null(mandos_argz);
7394
g_assert_true(mandos_argz_length == 0);
7395
7396
for(char **arg = argv; *arg != NULL; arg++){
7397
free(*arg);
7398
}
7399
}
7400
7401
static void test_parse_arguments_long_dir(__attribute__((unused))
7402
test_fixture *fixture,
7403
__attribute__((unused))
7404
gconstpointer user_data){
7405
char *argv[] = {
7406
strdup("prgname"),
7407
strdup("--agent-directory"),
7408
strdup("/tmp"),
7409
NULL };
7410
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7411
7412
__attribute__((cleanup(cleanup_string)))
7413
char *agent_directory = NULL;
7414
char *helper_directory = NULL;
7415
uid_t user = 0;
7416
gid_t group = 0;
7417
__attribute__((cleanup(cleanup_string)))
7418
char *mandos_argz = NULL;
7419
size_t mandos_argz_length = 0;
7420
7421
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7422
&helper_directory, &user, &group,
7423
&mandos_argz, &mandos_argz_length));
7424
7425
g_assert_cmpstr(agent_directory, ==, "/tmp");
7426
g_assert_null(helper_directory);
7427
g_assert_true(user == 0);
7428
g_assert_true(group == 0);
7429
g_assert_null(mandos_argz);
7430
g_assert_true(mandos_argz_length == 0);
7431
7432
for(char **arg = argv; *arg != NULL; arg++){
7433
free(*arg);
7434
}
7435
}
7436
7437
static void test_parse_arguments_short_dir(__attribute__((unused))
7438
test_fixture *fixture,
7439
__attribute__((unused))
7440
gconstpointer user_data){
7441
char *argv[] = {
7442
strdup("prgname"),
7443
strdup("-d"),
7444
strdup("/tmp"),
7445
NULL };
7446
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7447
7448
__attribute__((cleanup(cleanup_string)))
7449
char *agent_directory = NULL;
7450
char *helper_directory = NULL;
7451
uid_t user = 0;
7452
gid_t group = 0;
7453
__attribute__((cleanup(cleanup_string)))
7454
char *mandos_argz = NULL;
7455
size_t mandos_argz_length = 0;
7456
7457
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7458
&helper_directory, &user, &group,
7459
&mandos_argz, &mandos_argz_length));
7460
7461
g_assert_cmpstr(agent_directory, ==, "/tmp");
7462
g_assert_null(helper_directory);
7463
g_assert_true(user == 0);
7464
g_assert_true(group == 0);
7465
g_assert_null(mandos_argz);
7466
g_assert_true(mandos_argz_length == 0);
7467
7468
for(char **arg = argv; *arg != NULL; arg++){
7469
free(*arg);
7470
}
7471
}
7472
7473
static
7474
void test_parse_arguments_helper_directory(__attribute__((unused))
7475
test_fixture *fixture,
7476
__attribute__((unused))
7477
gconstpointer user_data){
7478
char *argv[] = {
7479
strdup("prgname"),
7480
strdup("--helper-directory"),
7481
strdup("/tmp"),
7482
NULL };
7483
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7484
7485
char *agent_directory = NULL;
7486
__attribute__((cleanup(cleanup_string)))
7487
char *helper_directory = NULL;
7488
uid_t user = 0;
7489
gid_t group = 0;
7490
__attribute__((cleanup(cleanup_string)))
7491
char *mandos_argz = NULL;
7492
size_t mandos_argz_length = 0;
7493
7494
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7495
&helper_directory, &user, &group,
7496
&mandos_argz, &mandos_argz_length));
7497
7498
g_assert_cmpstr(helper_directory, ==, "/tmp");
7499
g_assert_null(agent_directory);
7500
g_assert_true(user == 0);
7501
g_assert_true(group == 0);
7502
g_assert_null(mandos_argz);
7503
g_assert_true(mandos_argz_length == 0);
7504
7505
for(char **arg = argv; *arg != NULL; arg++){
7506
free(*arg);
7507
}
7508
}
7509
7510
static
7511
void test_parse_arguments_plugin_helper_dir(__attribute__((unused))
7512
test_fixture *fixture,
7513
__attribute__((unused))
7514
gconstpointer user_data){
7515
char *argv[] = {
7516
strdup("prgname"),
7517
strdup("--plugin-helper-dir"),
7518
strdup("/tmp"),
7519
NULL };
7520
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7521
7522
char *agent_directory = NULL;
7523
__attribute__((cleanup(cleanup_string)))
7524
char *helper_directory = NULL;
7525
uid_t user = 0;
7526
gid_t group = 0;
7527
__attribute__((cleanup(cleanup_string)))
7528
char *mandos_argz = NULL;
7529
size_t mandos_argz_length = 0;
7530
7531
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7532
&helper_directory, &user, &group,
7533
&mandos_argz, &mandos_argz_length));
7534
7535
g_assert_cmpstr(helper_directory, ==, "/tmp");
7536
g_assert_null(agent_directory);
7537
g_assert_true(user == 0);
7538
g_assert_true(group == 0);
7539
g_assert_null(mandos_argz);
7540
g_assert_true(mandos_argz_length == 0);
7541
7542
for(char **arg = argv; *arg != NULL; arg++){
7543
free(*arg);
7544
}
7545
}
7546
7547
static void test_parse_arguments_user(__attribute__((unused))
7548
test_fixture *fixture,
7549
__attribute__((unused))
7550
gconstpointer user_data){
7551
char *argv[] = {
7552
strdup("prgname"),
7553
strdup("--user"),
7554
strdup("1000"),
7555
NULL };
7556
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7557
7558
char *agent_directory = NULL;
7559
__attribute__((cleanup(cleanup_string)))
7560
char *helper_directory = NULL;
7561
uid_t user = 0;
7562
gid_t group = 0;
7563
__attribute__((cleanup(cleanup_string)))
7564
char *mandos_argz = NULL;
7565
size_t mandos_argz_length = 0;
7566
7567
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7568
&helper_directory, &user, &group,
7569
&mandos_argz, &mandos_argz_length));
7570
7571
g_assert_null(helper_directory);
7572
g_assert_null(agent_directory);
7573
g_assert_cmpuint((unsigned int)user, ==, 1000);
7574
g_assert_true(group == 0);
7575
g_assert_null(mandos_argz);
7576
g_assert_true(mandos_argz_length == 0);
7577
7578
for(char **arg = argv; *arg != NULL; arg++){
7579
free(*arg);
7580
}
7581
}
7582
7583
static void test_parse_arguments_user_invalid(__attribute__((unused))
7584
test_fixture *fixture,
7585
__attribute__((unused))
7586
gconstpointer
7587
user_data){
7588
char *argv[] = {
7589
strdup("prgname"),
7590
strdup("--user"),
7591
strdup("invalid"),
7592
NULL };
7593
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7594
7595
char *agent_directory = NULL;
7596
__attribute__((cleanup(cleanup_string)))
7597
char *helper_directory = NULL;
7598
uid_t user = 0;
7599
gid_t group = 0;
7600
__attribute__((cleanup(cleanup_string)))
7601
char *mandos_argz = NULL;
7602
size_t mandos_argz_length = 0;
7603
7604
g_assert_false(parse_arguments_devnull(argc, argv, false,
7605
&agent_directory,
7606
&helper_directory, &user,
7607
&group, &mandos_argz,
7608
&mandos_argz_length));
7609
7610
g_assert_null(helper_directory);
7611
g_assert_null(agent_directory);
7612
g_assert_cmpuint((unsigned int)user, ==, 0);
7613
g_assert_true(group == 0);
7614
g_assert_null(mandos_argz);
7615
g_assert_true(mandos_argz_length == 0);
7616
7617
for(char **arg = argv; *arg != NULL; arg++){
7618
free(*arg);
7619
}
7620
}
7621
7622
static
7623
void test_parse_arguments_user_zero_invalid(__attribute__((unused))
7624
test_fixture *fixture,
7625
__attribute__((unused))
7626
gconstpointer user_data){
7627
char *argv[] = {
7628
strdup("prgname"),
7629
strdup("--user"),
7630
strdup("0"),
7631
NULL };
7632
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7633
7634
char *agent_directory = NULL;
7635
__attribute__((cleanup(cleanup_string)))
7636
char *helper_directory = NULL;
7637
uid_t user = 0;
7638
gid_t group = 0;
7639
__attribute__((cleanup(cleanup_string)))
7640
char *mandos_argz = NULL;
7641
size_t mandos_argz_length = 0;
7642
7643
g_assert_false(parse_arguments_devnull(argc, argv, false,
7644
&agent_directory,
7645
&helper_directory, &user,
7646
&group, &mandos_argz,
7647
&mandos_argz_length));
7648
7649
g_assert_null(helper_directory);
7650
g_assert_null(agent_directory);
7651
g_assert_cmpuint((unsigned int)user, ==, 0);
7652
g_assert_true(group == 0);
7653
g_assert_null(mandos_argz);
7654
g_assert_true(mandos_argz_length == 0);
7655
7656
for(char **arg = argv; *arg != NULL; arg++){
7657
free(*arg);
7658
}
7659
}
7660
7661
static void test_parse_arguments_group(__attribute__((unused))
7662
test_fixture *fixture,
7663
__attribute__((unused))
7664
gconstpointer user_data){
7665
char *argv[] = {
7666
strdup("prgname"),
7667
strdup("--group"),
7668
strdup("1000"),
7669
NULL };
7670
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7671
7672
char *agent_directory = NULL;
7673
__attribute__((cleanup(cleanup_string)))
7674
char *helper_directory = NULL;
7675
uid_t user = 0;
7676
gid_t group = 0;
7677
__attribute__((cleanup(cleanup_string)))
7678
char *mandos_argz = NULL;
7679
size_t mandos_argz_length = 0;
7680
7681
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7682
&helper_directory, &user, &group,
7683
&mandos_argz, &mandos_argz_length));
7684
7685
g_assert_null(helper_directory);
7686
g_assert_null(agent_directory);
7687
g_assert_true(user == 0);
7688
g_assert_cmpuint((unsigned int)group, ==, 1000);
7689
g_assert_null(mandos_argz);
7690
g_assert_true(mandos_argz_length == 0);
7691
7692
for(char **arg = argv; *arg != NULL; arg++){
7693
free(*arg);
7694
}
7695
}
7696
7697
static void test_parse_arguments_group_invalid(__attribute__((unused))
7698
test_fixture *fixture,
7699
__attribute__((unused))
7700
gconstpointer
7701
user_data){
7702
char *argv[] = {
7703
strdup("prgname"),
7704
strdup("--group"),
7705
strdup("invalid"),
7706
NULL };
7707
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7708
7709
char *agent_directory = NULL;
7710
__attribute__((cleanup(cleanup_string)))
7711
char *helper_directory = NULL;
7712
uid_t user = 0;
7713
gid_t group = 0;
7714
__attribute__((cleanup(cleanup_string)))
7715
char *mandos_argz = NULL;
7716
size_t mandos_argz_length = 0;
7717
7718
g_assert_false(parse_arguments_devnull(argc, argv, false,
7719
&agent_directory,
7720
&helper_directory, &user,
7721
&group, &mandos_argz,
7722
&mandos_argz_length));
7723
7724
g_assert_null(helper_directory);
7725
g_assert_null(agent_directory);
7726
g_assert_true(user == 0);
7727
g_assert_true(group == 0);
7728
g_assert_null(mandos_argz);
7729
g_assert_true(mandos_argz_length == 0);
7730
7731
for(char **arg = argv; *arg != NULL; arg++){
7732
free(*arg);
7733
}
7734
}
7735
7736
static
7737
void test_parse_arguments_group_zero_invalid(__attribute__((unused))
7738
test_fixture *fixture,
7739
__attribute__((unused))
7740
gconstpointer user_data){
7741
char *argv[] = {
7742
strdup("prgname"),
7743
strdup("--group"),
7744
strdup("0"),
7745
NULL };
7746
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7747
7748
char *agent_directory = NULL;
7749
__attribute__((cleanup(cleanup_string)))
7750
char *helper_directory = NULL;
7751
uid_t user = 0;
7752
gid_t group = 0;
7753
__attribute__((cleanup(cleanup_string)))
7754
char *mandos_argz = NULL;
7755
size_t mandos_argz_length = 0;
7756
7757
g_assert_false(parse_arguments_devnull(argc, argv, false,
7758
&agent_directory,
7759
&helper_directory, &user,
7760
&group, &mandos_argz,
7761
&mandos_argz_length));
7762
7763
g_assert_null(helper_directory);
7764
g_assert_null(agent_directory);
7765
g_assert_cmpuint((unsigned int)group, ==, 0);
7766
g_assert_true(group == 0);
7767
g_assert_null(mandos_argz);
7768
g_assert_true(mandos_argz_length == 0);
7769
7770
for(char **arg = argv; *arg != NULL; arg++){
7771
free(*arg);
7772
}
7773
}
7774
7775
static void test_parse_arguments_mandos_noargs(__attribute__((unused))
7776
test_fixture *fixture,
7777
__attribute__((unused))
7778
gconstpointer
7779
user_data){
7780
char *argv[] = {
7781
strdup("prgname"),
7782
strdup("mandos-client"),
7783
NULL };
7784
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7785
7786
__attribute__((cleanup(cleanup_string)))
7787
char *agent_directory = NULL;
7788
__attribute__((cleanup(cleanup_string)))
7789
char *helper_directory = NULL;
7790
uid_t user = 0;
7791
gid_t group = 0;
7792
__attribute__((cleanup(cleanup_string)))
7793
char *mandos_argz = NULL;
7794
size_t mandos_argz_length = 0;
7795
7796
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7797
&helper_directory, &user, &group,
7798
&mandos_argz, &mandos_argz_length));
7799
7800
g_assert_null(agent_directory);
7801
g_assert_null(helper_directory);
7802
g_assert_true(user == 0);
7803
g_assert_true(group == 0);
7804
g_assert_cmpstr(mandos_argz, ==, "mandos-client");
7805
g_assert_cmpuint((unsigned int)argz_count(mandos_argz,
7806
mandos_argz_length),
7807
==, 1);
7808
7809
for(char **arg = argv; *arg != NULL; arg++){
7810
free(*arg);
7811
}
7812
}
7813
7814
static void test_parse_arguments_mandos_args(__attribute__((unused))
7815
test_fixture *fixture,
7816
__attribute__((unused))
7817
gconstpointer user_data){
7818
char *argv[] = {
7819
strdup("prgname"),
7820
strdup("mandos-client"),
7821
strdup("one"),
7822
strdup("two"),
7823
strdup("three"),
7824
NULL };
7825
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7826
7827
__attribute__((cleanup(cleanup_string)))
7828
char *agent_directory = NULL;
7829
__attribute__((cleanup(cleanup_string)))
7830
char *helper_directory = NULL;
7831
uid_t user = 0;
7832
gid_t group = 0;
7833
__attribute__((cleanup(cleanup_string)))
7834
char *mandos_argz = NULL;
7835
size_t mandos_argz_length = 0;
7836
7837
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7838
&helper_directory, &user, &group,
7839
&mandos_argz, &mandos_argz_length));
7840
7841
g_assert_null(agent_directory);
7842
g_assert_null(helper_directory);
7843
g_assert_true(user == 0);
7844
g_assert_true(group == 0);
7845
char *marg = mandos_argz;
7846
g_assert_cmpstr(marg, ==, "mandos-client");
7847
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7848
g_assert_cmpstr(marg, ==, "one");
7849
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7850
g_assert_cmpstr(marg, ==, "two");
7851
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7852
g_assert_cmpstr(marg, ==, "three");
7853
g_assert_cmpuint((unsigned int)argz_count(mandos_argz,
7854
mandos_argz_length),
7855
==, 4);
7856
7857
for(char **arg = argv; *arg != NULL; arg++){
7858
free(*arg);
7859
}
7860
}
7861
7862
static void test_parse_arguments_all_args(__attribute__((unused))
7863
test_fixture *fixture,
7864
__attribute__((unused))
7865
gconstpointer user_data){
7866
char *argv[] = {
7867
strdup("prgname"),
7868
strdup("--agent-directory"),
7869
strdup("/tmp"),
7870
strdup("--helper-directory"),
7871
strdup("/var/tmp"),
7872
strdup("--user"),
7873
strdup("1"),
7874
strdup("--group"),
7875
strdup("2"),
7876
strdup("mandos-client"),
7877
strdup("one"),
7878
strdup("two"),
7879
strdup("three"),
7880
NULL };
7881
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7882
7883
__attribute__((cleanup(cleanup_string)))
7884
char *agent_directory = NULL;
7885
__attribute__((cleanup(cleanup_string)))
7886
char *helper_directory = NULL;
7887
uid_t user = 0;
7888
gid_t group = 0;
7889
__attribute__((cleanup(cleanup_string)))
7890
char *mandos_argz = NULL;
7891
size_t mandos_argz_length = 0;
7892
7893
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7894
&helper_directory, &user, &group,
7895
&mandos_argz, &mandos_argz_length));
7896
7897
g_assert_cmpstr(agent_directory, ==, "/tmp");
7898
g_assert_cmpstr(helper_directory, ==, "/var/tmp");
7899
g_assert_true(user == 1);
7900
g_assert_true(group == 2);
7901
char *marg = mandos_argz;
7902
g_assert_cmpstr(marg, ==, "mandos-client");
7903
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7904
g_assert_cmpstr(marg, ==, "one");
7905
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7906
g_assert_cmpstr(marg, ==, "two");
7907
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7908
g_assert_cmpstr(marg, ==, "three");
7909
g_assert_cmpuint((unsigned int)argz_count(mandos_argz,
7910
mandos_argz_length),
7911
==, 4);
7912
7913
for(char **arg = argv; *arg != NULL; arg++){
7914
free(*arg);
7915
}
7916
}
7917
7918
static void test_parse_arguments_mixed(__attribute__((unused))
7919
test_fixture *fixture,
7920
__attribute__((unused))
7921
gconstpointer user_data){
7922
char *argv[] = {
7923
strdup("prgname"),
7924
strdup("mandos-client"),
7925
strdup("--user"),
7926
strdup("1"),
7927
strdup("one"),
7928
strdup("--agent-directory"),
7929
strdup("/tmp"),
7930
strdup("two"),
7931
strdup("three"),
7932
strdup("--helper-directory=/var/tmp"),
7933
NULL };
7934
const int argc = (sizeof(argv) / sizeof(char *)) - 1;
7935
7936
__attribute__((cleanup(cleanup_string)))
7937
char *agent_directory = NULL;
7938
__attribute__((cleanup(cleanup_string)))
7939
char *helper_directory = NULL;
7940
uid_t user = 0;
7941
gid_t group = 0;
7942
__attribute__((cleanup(cleanup_string)))
7943
char *mandos_argz = NULL;
7944
size_t mandos_argz_length = 0;
7945
7946
g_assert_true(parse_arguments(argc, argv, false, &agent_directory,
7947
&helper_directory, &user, &group,
7948
&mandos_argz, &mandos_argz_length));
7949
7950
g_assert_cmpstr(agent_directory, ==, "/tmp");
7951
g_assert_cmpstr(helper_directory, ==, "/var/tmp");
7952
g_assert_true(user == 1);
7953
g_assert_true(group == 0);
7954
char *marg = mandos_argz;
7955
g_assert_cmpstr(marg, ==, "mandos-client");
7956
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7957
g_assert_cmpstr(marg, ==, "one");
7958
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7959
g_assert_cmpstr(marg, ==, "two");
7960
marg = argz_next(mandos_argz, mandos_argz_length, marg);
7961
g_assert_cmpstr(marg, ==, "three");
7962
g_assert_cmpuint((unsigned int)argz_count(mandos_argz,
7963
mandos_argz_length),
7964
==, 4);
7965
7966
for(char **arg = argv; *arg != NULL; arg++){
7967
free(*arg);
7968
}
7969
}
7970
7971
/* End of tests section */
7972
7973
/* Test boilerplate section; New tests should be added to the test
7974
suite definition here, in the "run_tests" function.
7975
7976
Finally, this section also contains the should_only_run_tests()
7977
function used by main() for deciding if tests should be run or to
7978
start normally. */
7979
7980
__attribute__((cold))
7981
static bool run_tests(int argc, char *argv[]){
7982
g_test_init(&argc, &argv, NULL);
7983
7984
/* A macro to add a test with no setup or teardown functions */
7985
#define test_add(testpath, testfunc) \
7986
do { \
7987
g_test_add((testpath), test_fixture, NULL, NULL, \
7988
(testfunc), NULL); \
7989
} while(false)
7990
7991
/* Test the signal-related functions first, since some other tests
7992
depend on these functions in their setups and teardowns */
7993
test_add("/signal-handling/setup", test_setup_signal_handler);
7994
test_add("/signal-handling/restore", test_restore_signal_handler);
7995
test_add("/signal-handling/block", test_block_sigchld);
7996
test_add("/signal-handling/restore-sigmask", test_restore_sigmask);
7997
7998
/* Regular non-signal-related tests; these use no setups or
7999
teardowns */
8000
test_add("/parse_arguments/noargs", test_parse_arguments_noargs);
8001
test_add("/parse_arguments/invalid", test_parse_arguments_invalid);
8002
test_add("/parse_arguments/long-dir",
8003
test_parse_arguments_long_dir);
8004
test_add("/parse_arguments/short-dir",
8005
test_parse_arguments_short_dir);
8006
test_add("/parse_arguments/helper-directory",
8007
test_parse_arguments_helper_directory);
8008
test_add("/parse_arguments/plugin-helper-dir",
8009
test_parse_arguments_plugin_helper_dir);
8010
test_add("/parse_arguments/user", test_parse_arguments_user);
8011
test_add("/parse_arguments/user-invalid",
8012
test_parse_arguments_user_invalid);
8013
test_add("/parse_arguments/user-zero-invalid",
8014
test_parse_arguments_user_zero_invalid);
8015
test_add("/parse_arguments/group", test_parse_arguments_group);
8016
test_add("/parse_arguments/group-invalid",
8017
test_parse_arguments_group_invalid);
8018
test_add("/parse_arguments/group-zero-invalid",
8019
test_parse_arguments_group_zero_invalid);
8020
test_add("/parse_arguments/mandos-noargs",
8021
test_parse_arguments_mandos_noargs);
8022
test_add("/parse_arguments/mandos-args",
8023
test_parse_arguments_mandos_args);
8024
test_add("/parse_arguments/all-args",
8025
test_parse_arguments_all_args);
8026
test_add("/parse_arguments/mixed", test_parse_arguments_mixed);
8027
test_add("/queue/create", test_create_queue);
8028
test_add("/queue/add", test_add_to_queue);
8029
test_add("/queue/add/overflow", test_add_to_queue_overflow);
8030
test_add("/queue/has_question/empty",
8031
test_queue_has_question_empty);
8032
test_add("/queue/has_question/false",
8033
test_queue_has_question_false);
8034
test_add("/queue/has_question/true", test_queue_has_question_true);
8035
test_add("/queue/has_question/false2",
8036
test_queue_has_question_false2);
8037
test_add("/queue/has_question/true2",
8038
test_queue_has_question_true2);
8039
test_add("/buffer/cleanup", test_cleanup_buffer);
8040
test_add("/string_set/net-set-contains-nothing",
8041
test_string_set_new_set_contains_nothing);
8042
test_add("/string_set/with-added-string-contains-it",
8043
test_string_set_with_added_string_contains_it);
8044
test_add("/string_set/cleared-does-not-contain-string",
8045
test_string_set_cleared_does_not_contain_str);
8046
test_add("/string_set/swap/one-with-empty",
8047
test_string_set_swap_one_with_empty);
8048
test_add("/string_set/swap/empty-with-one",
8049
test_string_set_swap_empty_with_one);
8050
test_add("/string_set/swap/one-with-one",
8051
test_string_set_swap_one_with_one);
8052
8053
/* A macro to add a test using the setup and teardown functions */
8054
#define test_add_st(path, func) \
8055
do { \
8056
g_test_add((path), test_fixture, NULL, test_setup, (func), \
8057
test_teardown); \
8058
} while(false)
8059
8060
/* Signal-related tests; these use setups and teardowns which
8061
establish, during each test run, a signal handler for, and a
8062
signal mask blocking, the SIGCHLD signal, just like main() */
8063
test_add_st("/wait_for_event/timeout", test_wait_for_event_timeout);
8064
test_add_st("/wait_for_event/event", test_wait_for_event_event);
8065
test_add_st("/wait_for_event/sigchld", test_wait_for_event_sigchld);
8066
test_add_st("/run_queue/zeroes-next-run",
8067
test_run_queue_zeroes_next_run);
8068
test_add_st("/run_queue/clears-cancelled_filenames",
8069
test_run_queue_clears_cancelled_filenames);
8070
test_add_st("/run_queue/skips-cancelled-filenames",
8071
test_run_queue_skips_cancelled_filenames);
8072
test_add_st("/run_queue/one-task", test_run_queue_one_task);
8073
test_add_st("/run_queue/two-tasks", test_run_queue_two_tasks);
8074
test_add_st("/run_queue/two-tasks/quit",
8075
test_run_queue_two_tasks_quit);
8076
test_add_st("/run_queue/two-tasks-cleanup",
8077
test_run_queue_two_tasks_cleanup);
8078
test_add_st("/task-creators/start_mandos_client",
8079
test_start_mandos_client);
8080
test_add_st("/task-creators/start_mandos_client/execv",
8081
test_start_mandos_client_execv);
8082
test_add_st("/task-creators/start_mandos_client/suid/euid",
8083
test_start_mandos_client_suid_euid);
8084
test_add_st("/task-creators/start_mandos_client/suid/egid",
8085
test_start_mandos_client_suid_egid);
8086
test_add_st("/task-creators/start_mandos_client/suid/ruid",
8087
test_start_mandos_client_suid_ruid);
8088
test_add_st("/task-creators/start_mandos_client/suid/rgid",
8089
test_start_mandos_client_suid_rgid);
8090
test_add_st("/task-creators/start_mandos_client/read",
8091
test_start_mandos_client_read);
8092
test_add_st("/task-creators/start_mandos_client/helper-directory",
8093
test_start_mandos_client_helper_directory);
8094
test_add_st("/task-creators/start_mandos_client/sigmask",
8095
test_start_mandos_client_sigmask);
8096
test_add_st("/task/wait_for_mandos_client_exit/badpid",
8097
test_wait_for_mandos_client_exit_badpid);
8098
test_add_st("/task/wait_for_mandos_client_exit/noexit",
8099
test_wait_for_mandos_client_exit_noexit);
8100
test_add_st("/task/wait_for_mandos_client_exit/success",
8101
test_wait_for_mandos_client_exit_success);
8102
test_add_st("/task/wait_for_mandos_client_exit/failure",
8103
test_wait_for_mandos_client_exit_failure);
8104
test_add_st("/task/wait_for_mandos_client_exit/killed",
8105
test_wait_for_mandos_client_exit_killed);
8106
test_add_st("/task/read_mandos_client_output/readerror",
8107
test_read_mandos_client_output_readerror);
8108
test_add_st("/task/read_mandos_client_output/nodata",
8109
test_read_mandos_client_output_nodata);
8110
test_add_st("/task/read_mandos_client_output/eof",
8111
test_read_mandos_client_output_eof);
8112
test_add_st("/task/read_mandos_client_output/once",
8113
test_read_mandos_client_output_once);
8114
test_add_st("/task/read_mandos_client_output/malloc",
8115
test_read_mandos_client_output_malloc);
8116
test_add_st("/task/read_mandos_client_output/append",
8117
test_read_mandos_client_output_append);
8118
test_add_st("/task-creators/add_inotify_dir_watch",
8119
test_add_inotify_dir_watch);
8120
test_add_st("/task-creators/add_inotify_dir_watch/fail",
8121
test_add_inotify_dir_watch_fail);
8122
test_add_st("/task-creators/add_inotify_dir_watch/not-a-directory",
8123
test_add_inotify_dir_watch_nondir);
8124
test_add_st("/task-creators/add_inotify_dir_watch/EAGAIN",
8125
test_add_inotify_dir_watch_EAGAIN);
8126
test_add_st("/task-creators/add_inotify_dir_watch/IN_CLOSE_WRITE",
8127
test_add_inotify_dir_watch_IN_CLOSE_WRITE);
8128
test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_TO",
8129
test_add_inotify_dir_watch_IN_MOVED_TO);
8130
test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_FROM",
8131
test_add_inotify_dir_watch_IN_MOVED_FROM);
8132
test_add_st("/task-creators/add_inotify_dir_watch/IN_EXCL_UNLINK",
8133
test_add_inotify_dir_watch_IN_EXCL_UNLINK);
8134
test_add_st("/task-creators/add_inotify_dir_watch/IN_DELETE",
8135
test_add_inotify_dir_watch_IN_DELETE);
8136
test_add_st("/task/read_inotify_event/readerror",
8137
test_read_inotify_event_readerror);
8138
test_add_st("/task/read_inotify_event/bad-epoll",
8139
test_read_inotify_event_bad_epoll);
8140
test_add_st("/task/read_inotify_event/nodata",
8141
test_read_inotify_event_nodata);
8142
test_add_st("/task/read_inotify_event/eof",
8143
test_read_inotify_event_eof);
8144
test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE",
8145
test_read_inotify_event_IN_CLOSE_WRITE);
8146
test_add_st("/task/read_inotify_event/IN_MOVED_TO",
8147
test_read_inotify_event_IN_MOVED_TO);
8148
test_add_st("/task/read_inotify_event/IN_MOVED_FROM",
8149
test_read_inotify_event_IN_MOVED_FROM);
8150
test_add_st("/task/read_inotify_event/IN_DELETE",
8151
test_read_inotify_event_IN_DELETE);
8152
test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE/badname",
8153
test_read_inotify_event_IN_CLOSE_WRITE_badname);
8154
test_add_st("/task/read_inotify_event/IN_MOVED_TO/badname",
8155
test_read_inotify_event_IN_MOVED_TO_badname);
8156
test_add_st("/task/read_inotify_event/IN_MOVED_FROM/badname",
8157
test_read_inotify_event_IN_MOVED_FROM_badname);
8158
test_add_st("/task/read_inotify_event/IN_DELETE/badname",
8159
test_read_inotify_event_IN_DELETE_badname);
8160
test_add_st("/task/open_and_parse_question/ENOENT",
8161
test_open_and_parse_question_ENOENT);
8162
test_add_st("/task/open_and_parse_question/EIO",
8163
test_open_and_parse_question_EIO);
8164
test_add_st("/task/open_and_parse_question/parse-error",
8165
test_open_and_parse_question_parse_error);
8166
test_add_st("/task/open_and_parse_question/nosocket",
8167
test_open_and_parse_question_nosocket);
8168
test_add_st("/task/open_and_parse_question/badsocket",
8169
test_open_and_parse_question_badsocket);
8170
test_add_st("/task/open_and_parse_question/nopid",
8171
test_open_and_parse_question_nopid);
8172
test_add_st("/task/open_and_parse_question/badpid",
8173
test_open_and_parse_question_badpid);
8174
test_add_st("/task/open_and_parse_question/noexist_pid",
8175
test_open_and_parse_question_noexist_pid);
8176
test_add_st("/task/open_and_parse_question/no-notafter",
8177
test_open_and_parse_question_no_notafter);
8178
test_add_st("/task/open_and_parse_question/bad-notafter",
8179
test_open_and_parse_question_bad_notafter);
8180
test_add_st("/task/open_and_parse_question/notafter-0",
8181
test_open_and_parse_question_notafter_0);
8182
test_add_st("/task/open_and_parse_question/notafter-1",
8183
test_open_and_parse_question_notafter_1);
8184
test_add_st("/task/open_and_parse_question/notafter-1-1",
8185
test_open_and_parse_question_notafter_1_1);
8186
test_add_st("/task/open_and_parse_question/notafter-1-2",
8187
test_open_and_parse_question_notafter_1_2);
8188
test_add_st("/task/open_and_parse_question/equal-notafter",
8189
test_open_and_parse_question_equal_notafter);
8190
test_add_st("/task/open_and_parse_question/late-notafter",
8191
test_open_and_parse_question_late_notafter);
8192
test_add_st("/task/cancel_old_question/0-1-2",
8193
test_cancel_old_question_0_1_2);
8194
test_add_st("/task/cancel_old_question/0-2-1",
8195
test_cancel_old_question_0_2_1);
8196
test_add_st("/task/cancel_old_question/1-2-3",
8197
test_cancel_old_question_1_2_3);
8198
test_add_st("/task/cancel_old_question/1-3-2",
8199
test_cancel_old_question_1_3_2);
8200
test_add_st("/task/cancel_old_question/2-1-3",
8201
test_cancel_old_question_2_1_3);
8202
test_add_st("/task/cancel_old_question/2-3-1",
8203
test_cancel_old_question_2_3_1);
8204
test_add_st("/task/cancel_old_question/3-1-2",
8205
test_cancel_old_question_3_1_2);
8206
test_add_st("/task/cancel_old_question/3-2-1",
8207
test_cancel_old_question_3_2_1);
8208
test_add_st("/task/connect_question_socket/name-too-long",
8209
test_connect_question_socket_name_too_long);
8210
test_add_st("/task/connect_question_socket/connect-fail",
8211
test_connect_question_socket_connect_fail);
8212
test_add_st("/task/connect_question_socket/bad-epoll",
8213
test_connect_question_socket_bad_epoll);
8214
test_add_st("/task/connect_question_socket/usable",
8215
test_connect_question_socket_usable);
8216
test_add_st("/task/send_password_to_socket/client-not-exited",
8217
test_send_password_to_socket_client_not_exited);
8218
test_add_st("/task/send_password_to_socket/password-not-read",
8219
test_send_password_to_socket_password_not_read);
8220
test_add_st("/task/send_password_to_socket/EMSGSIZE",
8221
test_send_password_to_socket_EMSGSIZE);
8222
test_add_st("/task/send_password_to_socket/retry",
8223
test_send_password_to_socket_retry);
8224
test_add_st("/task/send_password_to_socket/bad-epoll",
8225
test_send_password_to_socket_bad_epoll);
8226
test_add_st("/task/send_password_to_socket/null-password",
8227
test_send_password_to_socket_null_password);
8228
test_add_st("/task/send_password_to_socket/empty-password",
8229
test_send_password_to_socket_empty_password);
8230
test_add_st("/task/send_password_to_socket/empty-str-password",
8231
test_send_password_to_socket_empty_str_pass);
8232
test_add_st("/task/send_password_to_socket/text-password",
8233
test_send_password_to_socket_text_password);
8234
test_add_st("/task/send_password_to_socket/binary-password",
8235
test_send_password_to_socket_binary_password);
8236
test_add_st("/task/send_password_to_socket/nuls-in-password",
8237
test_send_password_to_socket_nuls_in_password);
8238
test_add_st("/task-creators/add_existing_questions/ENOENT",
8239
test_add_existing_questions_ENOENT);
8240
test_add_st("/task-creators/add_existing_questions/no-questions",
8241
test_add_existing_questions_no_questions);
8242
test_add_st("/task-creators/add_existing_questions/one-question",
8243
test_add_existing_questions_one_question);
8244
test_add_st("/task-creators/add_existing_questions/two-questions",
8245
test_add_existing_questions_two_questions);
8246
test_add_st("/task-creators/add_existing_questions/non-questions",
8247
test_add_existing_questions_non_questions);
8248
test_add_st("/task-creators/add_existing_questions/both-types",
8249
test_add_existing_questions_both_types);
8250
8251
return g_test_run() == 0;
8252
}
8253
8254
static bool should_only_run_tests(int *argc_p, char **argv_p[]){
8255
GOptionContext *context = g_option_context_new("");
8256
8257
g_option_context_set_help_enabled(context, FALSE);
8258
g_option_context_set_ignore_unknown_options(context, TRUE);
8259
8260
gboolean should_run_tests = FALSE;
8261
GOptionEntry entries[] = {
8262
{ "test", 0, 0, G_OPTION_ARG_NONE,
8263
&should_run_tests, "Run tests", NULL },
8264
{ NULL }
8265
};
8266
g_option_context_add_main_entries(context, entries, NULL);
8267
8268
GError *error = NULL;
8269
8270
if(g_option_context_parse(context, argc_p, argv_p, &error) != TRUE){
8271
g_option_context_free(context);
8272
g_error("Failed to parse options: %s", error->message);
8273
}
8274
8275
g_option_context_free(context);
8276
return should_run_tests != FALSE;
8277
}
8278
8279
/*
8280
Local Variables:
8281
run-tests:
8282
(lambda ()
8283
(if (not (funcall run-tests-in-test-buffer default-directory))
8284
(funcall show-test-buffer-in-test-window)
8285
(funcall remove-test-window)))
8286
run-tests-in-test-buffer:
8287
(lambda (dir)
8288
(with-current-buffer (get-buffer-create "*Test*")
8289
(setq buffer-read-only nil
8290
default-directory dir)
8291
(erase-buffer)
8292
(compilation-mode))
8293
(let ((process-result
8294
(let ((inhibit-read-only t))
8295
(process-file-shell-command
8296
(funcall get-command-line) nil "*Test*"))))
8297
(and (numberp process-result)
8298
(= process-result 0))))
8299
get-command-line:
8300
(lambda ()
8301
(let*
8302
((build-directory
8303
(funcall find-build-directory (buffer-file-name)))
8304
(local-build-directory
8305
(if (fboundp 'file-local-name)
8306
(file-local-name build-directory)
8307
(or (file-remote-p build-directory 'localname)
8308
build-directory)))
8309
(command
8310
(file-relative-name (file-name-sans-extension
8311
(buffer-file-name)) build-directory))
8312
(qbdir (shell-quote-argument local-build-directory))
8313
(qcmd (shell-quote-argument command)))
8314
(format (concat "cd %s && CFLAGS=-Werror make --silent %s"
8315
" && %s --test --verbose") qbdir qcmd qcmd)))
8316
find-build-directory:
8317
(lambda (try-directory &optional base-directory)
8318
(let ((base-directory (or base-directory try-directory)))
8319
(cond ((equal try-directory "/") base-directory)
8320
((file-readable-p
8321
(concat (file-name-as-directory try-directory)
8322
"Makefile")) try-directory)
8323
((funcall find-build-directory
8324
(directory-file-name (file-name-directory
8325
try-directory))
8326
base-directory)))))
8327
show-test-buffer-in-test-window:
8328
(lambda ()
8329
(when (not (get-buffer-window-list "*Test*"))
8330
(setq next-error-last-buffer (get-buffer "*Test*"))
8331
(let* ((side (if (>= (window-width) 146) 'right 'bottom))
8332
(display-buffer-overriding-action
8333
`((display-buffer-in-side-window) (side . ,side)
8334
(window-height . fit-window-to-buffer)
8335
(window-width . fit-window-to-buffer))))
8336
(display-buffer "*Test*"))))
8337
remove-test-window:
8338
(lambda ()
8339
(let ((test-window (get-buffer-window "*Test*")))
8340
(if test-window (delete-window test-window))))
8341
eval: (add-hook 'after-save-hook run-tests 90 t)
8342
End:
8343
*/
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0