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- Committer: Teddy Hogeborn
- Date: 2022-04-23 20:39:28 UTC
- Revision ID: teddy@recompile.se-20220423203928-q2ngppp3pt7cfv4x
Makefile: Add comment about phase out of -lpthread
* Makefile (dracut-module/password-agent): Add comment about -lpthread
being unnecessary in GNU C library 2.34 and later.
* Makefile (dracut-module/password-agent): Add comment about -lpthread
being unnecessary in GNU C library 2.34 and later.
- files added:
- debian/po/de.po
- files modified:
- .bzrignore
added
removed
dracut-module/password-agent.c
2
2
/*
3
3
* Mandos password agent - Simple password agent to run Mandos client
4
4
*
5
* Copyright © 2019 Teddy Hogeborn
6
* Copyright © 2019 Björn Påhlsson
5
* Copyright © 2019-2021 Teddy Hogeborn
6
* Copyright © 2019-2021 Björn Påhlsson
7
7
*
8
8
* This file is part of Mandos.
9
9
*
23
23
* Contact the authors at <mandos@recompile.se>.
24
24
*/
25
25
26
#define _GNU_SOURCE
27
#include <inttypes.h> /* uintmax_t, PRIuMAX, PRIdMAX,
28
intmax_t, uint32_t, SCNx32,
29
SCNuMAX, SCNxMAX */
30
#include <stddef.h> /* size_t */
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 */
31
33
#include <sys/types.h> /* pid_t, uid_t, gid_t, getuid(),
32
34
getpid() */
33
35
#include <stdbool.h> /* bool, true, false */
40
42
NSIG, sigismember(), SA_ONSTACK,
41
43
SIG_DFL, SIG_IGN, SIGINT, SIGQUIT,
42
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() */
43
52
#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE,
44
malloc(), free(), strtoumax(),
45
realloc(), setenv(), calloc(),
46
mkdtemp(), mkostemp() */
53
malloc(), free(), realloc(),
54
setenv(), calloc(), mkdtemp(),
55
mkostemp() */
47
56
#include <iso646.h> /* not, or, and, xor */
48
57
#include <error.h> /* error() */
49
58
#include <sysexits.h> /* EX_USAGE, EX_OSERR, EX_OSFILE */
50
59
#include <errno.h> /* errno, error_t, EACCES,
51
ENAMETOOLONG, ENOENT, EEXIST,
52
ECHILD, EPERM, ENOMEM, EAGAIN,
53
EINTR, ENOBUFS, EADDRINUSE,
60
ENAMETOOLONG, ENOENT, ENOTDIR,
61
ENOMEM, EEXIST, ECHILD, EPERM,
62
EAGAIN, EINTR, ENOBUFS, EADDRINUSE,
54
63
ECONNREFUSED, ECONNRESET,
55
64
ETOOMANYREFS, EMSGSIZE, EBADF,
56
65
EINVAL */
57
66
#include <string.h> /* strdup(), memcpy(),
58
67
explicit_bzero(), memset(),
59
68
strcmp(), strlen(), strncpy(),
60
memcmp(), basename() */
69
memcmp(), basename(), strerror() */
61
70
#include <argz.h> /* argz_create(), argz_count(),
62
71
argz_extract(), argz_next(),
63
72
argz_add() */
73
82
ARGP_ERR_UNKNOWN, ARGP_KEY_ARGS,
74
83
struct argp, argp_parse(),
75
84
ARGP_NO_EXIT */
76
#include <unistd.h> /* uid_t, gid_t, close(), pipe2(),
77
fork(), _exit(), dup2(),
78
STDOUT_FILENO, setresgid(),
79
setresuid(), execv(), ssize_t,
80
read(), dup3(), getuid(), dup(),
81
STDERR_FILENO, pause(), write(),
82
rmdir(), unlink(), getpid() */
85
#include <stdint.h> /* SIZE_MAX, uint32_t */
83
86
#include <sys/mman.h> /* munlock(), mlock() */
84
87
#include <fcntl.h> /* O_CLOEXEC, O_NONBLOCK, fcntl(),
85
88
F_GETFD, F_GETFL, FD_CLOEXEC,
86
open(), O_WRONLY, O_RDONLY */
89
open(), O_WRONLY, O_NOCTTY,
90
O_RDONLY, O_NOFOLLOW */
87
91
#include <sys/wait.h> /* waitpid(), WNOHANG, WIFEXITED(),
88
92
WEXITSTATUS() */
89
93
#include <limits.h> /* PIPE_BUF, NAME_MAX, INT_MAX */
90
94
#include <sys/inotify.h> /* inotify_init1(), IN_NONBLOCK,
91
95
IN_CLOEXEC, inotify_add_watch(),
92
96
IN_CLOSE_WRITE, IN_MOVED_TO,
93
IN_DELETE, struct inotify_event */
97
IN_MOVED_FROM, IN_DELETE,
98
IN_EXCL_UNLINK, IN_ONLYDIR,
99
struct inotify_event */
94
100
#include <fnmatch.h> /* fnmatch(), FNM_FILE_NAME */
95
#include <stdio.h> /* asprintf(), FILE, fopen(),
96
getline(), sscanf(), feof(),
97
ferror(), fclose(), stderr,
98
rename(), fdopen(), fprintf(),
99
fscanf() */
101
#include <stdio.h> /* asprintf(), FILE, stderr, fopen(),
102
fclose(), getline(), sscanf(),
103
feof(), ferror(), rename(),
104
fdopen(), fprintf(), fscanf() */
100
105
#include <glib.h> /* GKeyFile, g_key_file_free(), g_key_file_new(),
101
106
GError, g_key_file_load_from_file(),
102
107
G_KEY_FILE_NONE, TRUE, G_FILE_ERROR_NOENT,
107
112
g_assert_null(), g_assert_false(),
108
113
g_assert_cmpint(), g_assert_cmpuint(),
109
114
g_test_skip(), g_assert_cmpstr(),
110
g_test_init(), g_test_add(), g_test_run(),
111
GOptionContext, g_option_context_new(),
115
g_test_message(), g_test_init(), g_test_add(),
116
g_test_run(), GOptionContext,
117
g_option_context_new(),
112
118
g_option_context_set_help_enabled(), FALSE,
113
119
g_option_context_set_ignore_unknown_options(),
114
120
gboolean, GOptionEntry, G_OPTION_ARG_NONE,
145
151
mono_microsecs next_run;
146
152
} __attribute__((designated_init)) task_queue;
147
153
148
/* "func_type" - A function type for task functions
154
/* "task_func" - A function type for task functions
149
155
150
156
I.e. functions for the code which runs when a task is run, all have
151
157
this type */
431
437
case EACCES:
432
438
case ENAMETOOLONG:
433
439
case ENOENT:
440
case ENOTDIR:
434
441
return EX_OSFILE;
435
442
default:
436
443
return EX_OSERR;
647
654
648
655
__attribute__((nonnull, warn_unused_result))
649
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
}
650
664
const size_t needed_size = sizeof(task_context)*(queue->length + 1);
651
665
if(needed_size > (queue->allocated)){
652
666
task_context *const new_tasks = realloc(queue->tasks,
857
871
}
858
872
close(pipefds[1]);
859
873
874
if(pid == -1){
875
error(0, errno, "Failed to fork()");
876
close(pipefds[0]);
877
return false;
878
}
879
860
880
if(not add_to_queue(queue, (task_context){
861
881
.func=wait_for_mandos_client_exit,
862
882
.pid=pid,
1017
1037
return false;
1018
1038
}
1019
1039
1020
if(inotify_add_watch(fd, dir, IN_CLOSE_WRITE
1021
| IN_MOVED_TO | IN_DELETE)
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)
1022
1043
== -1){
1023
1044
error(0, errno, "Failed to create inotify watch on %s", dir);
1024
1045
return false;
1119
1140
immediately */
1120
1141
queue->next_run = 1;
1121
1142
}
1122
} else if(ievent->mask & IN_DELETE){
1143
} else if(ievent->mask & (IN_MOVED_FROM | IN_DELETE)){
1123
1144
if(not string_set_add(cancelled_filenames,
1124
1145
question_filename)){
1125
1146
error(0, errno, "Could not add question %s to"
1175
1196
bool *const password_is_read = task.password_is_read;
1176
1197
1177
1198
/* We use the GLib "Key-value file parser" functions to parse the
1178
question file. See <https://www.freedesktop.org/wiki/Software
1179
/systemd/PasswordAgents/> for specification of contents */
1199
question file. See <https://systemd.io/PASSWORD_AGENTS/> for
1200
specification of contents */
1180
1201
__attribute__((nonnull))
1181
1202
void cleanup_g_key_file(GKeyFile **key_file){
1182
1203
if(*key_file != NULL){
1472
1493
not. You may but don't have to include a final NUL byte in
1473
1494
your message.
1474
1495
1475
— <https://www.freedesktop.org/wiki/Software/systemd/
1476
PasswordAgents/> (Wed 08 Oct 2014 02:14:28 AM UTC)
1496
— <https://systemd.io/PASSWORD_AGENTS/> (Tue, 15 Sep 2020
1497
14:24:20 GMT)
1477
1498
*/
1478
1499
send_buffer[0] = '+'; /* Prefix with "+" */
1479
1500
/* Always add an extra NUL */
1484
1505
errno = 0;
1485
1506
ssize_t ssret = send(fd, send_buffer, send_buffer_length,
1486
1507
MSG_NOSIGNAL);
1487
const error_t saved_errno = errno;
1508
const error_t saved_errno = (ssret < 0) ? errno : 0;
1488
1509
#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 25)
1489
1510
explicit_bzero(send_buffer, send_buffer_length);
1490
1511
#else
1508
1529
/* Retry, below */
1509
1530
break;
1510
1531
case EMSGSIZE:
1511
error(0, 0, "Password of size %" PRIuMAX " is too big",
1512
(uintmax_t)password->length);
1532
error(0, saved_errno, "Password of size %" PRIuMAX
1533
" is too big", (uintmax_t)password->length);
1513
1534
#if __GNUC__ < 7
1514
1535
/* FALLTHROUGH */
1515
1536
#else
1517
1538
#endif
1518
1539
case 0:
1519
1540
if(ssret >= 0 and ssret < (ssize_t)send_buffer_length){
1520
error(0, 0, "Password only partially sent to socket");
1541
error(0, 0, "Password only partially sent to socket %s: %"
1542
PRIuMAX " out of %" PRIuMAX " bytes sent", filename,
1543
(uintmax_t)ssret, (uintmax_t)send_buffer_length);
1521
1544
}
1522
1545
#if __GNUC__ < 7
1523
1546
/* FALLTHROUGH */
1879
1902
g_assert_true(queue->tasks[0].func == dummy_func);
1880
1903
}
1881
1904
1905
static void test_add_to_queue_overflow(__attribute__((unused))
1906
test_fixture *fixture,
1907
__attribute__((unused))
1908
gconstpointer user_data){
1909
__attribute__((cleanup(cleanup_queue)))
1910
task_queue *queue = create_queue();
1911
g_assert_nonnull(queue);
1912
g_assert_true(queue->length == 0);
1913
queue->length = SIZE_MAX / sizeof(task_context); /* fake max size */
1914
1915
FILE *real_stderr = stderr;
1916
FILE *devnull = fopen("/dev/null", "we");
1917
g_assert_nonnull(devnull);
1918
stderr = devnull;
1919
const bool ret = add_to_queue(queue,
1920
(task_context){ .func=dummy_func });
1921
g_assert_true(errno == ENOMEM);
1922
g_assert_false(ret);
1923
stderr = real_stderr;
1924
g_assert_cmpint(fclose(devnull), ==, 0);
1925
queue->length = 0; /* Restore real size */
1926
}
1927
1882
1928
static void dummy_func(__attribute__((unused))
1883
1929
const task_context task,
1884
1930
__attribute__((unused))
2155
2201
}
2156
2202
exit(EXIT_SUCCESS);
2157
2203
}
2204
if(pid == -1){
2205
error(EXIT_FAILURE, errno, "Failed to fork()");
2206
}
2207
2158
2208
int status;
2159
2209
waitpid(pid, &status, 0);
2160
2210
if(WIFEXITED(status) and (WEXITSTATUS(status) == EXIT_SUCCESS)){
2222
2272
2223
2273
{
2224
2274
__attribute__((cleanup(cleanup_close)))
2225
const int devnull_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);
2275
const int devnull_fd = open("/dev/null",
2276
O_WRONLY | O_CLOEXEC | O_NOCTTY);
2226
2277
g_assert_cmpint(devnull_fd, >=, 0);
2227
2278
__attribute__((cleanup(cleanup_close)))
2228
2279
const int real_stderr_fd = dup(STDERR_FILENO);
2252
2303
{
2253
2304
__attribute__((cleanup(cleanup_close)))
2254
2305
const int devnull_fd = open("/dev/null",
2255
O_WRONLY | O_CLOEXEC);
2306
O_WRONLY | O_CLOEXEC | O_NOCTTY);
2256
2307
g_assert_cmpint(devnull_fd, >=, 0);
2257
2308
__attribute__((cleanup(cleanup_close)))
2258
2309
const int real_stderr_fd = dup(STDERR_FILENO);
2903
2954
2904
2955
__attribute__((cleanup(cleanup_close)))
2905
2956
const int devnull_fd = open("/dev/null",
2906
O_WRONLY | O_CLOEXEC);
2957
O_WRONLY | O_CLOEXEC | O_NOCTTY);
2907
2958
g_assert_cmpint(devnull_fd, >=, 0);
2908
2959
__attribute__((cleanup(cleanup_close)))
2909
2960
const int real_stderr_fd = dup(STDERR_FILENO);
2974
3025
2975
3026
__attribute__((cleanup(cleanup_close)))
2976
3027
const int devnull_fd = open("/dev/null",
2977
O_WRONLY | O_CLOEXEC);
3028
O_WRONLY | O_CLOEXEC, O_NOCTTY);
2978
3029
g_assert_cmpint(devnull_fd, >=, 0);
2979
3030
__attribute__((cleanup(cleanup_close)))
2980
3031
const int real_stderr_fd = dup(STDERR_FILENO);
3018
3069
buffer password = {};
3019
3070
3020
3071
/* Reading /proc/self/mem from offset 0 will always give EIO */
3021
const int fd = open("/proc/self/mem", O_RDONLY | O_CLOEXEC);
3072
const int fd = open("/proc/self/mem",
3073
O_RDONLY | O_CLOEXEC | O_NOCTTY);
3022
3074
3023
3075
bool password_is_read = false;
3024
3076
bool quit_now = false;
3452
3504
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3453
3505
}
3454
3506
3507
static void test_add_inotify_dir_watch_nondir(__attribute__((unused))
3508
test_fixture *fixture,
3509
__attribute__((unused))
3510
gconstpointer
3511
user_data){
3512
__attribute__((cleanup(cleanup_close)))
3513
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3514
g_assert_cmpint(epoll_fd, >=, 0);
3515
__attribute__((cleanup(cleanup_queue)))
3516
task_queue *queue = create_queue();
3517
g_assert_nonnull(queue);
3518
__attribute__((cleanup(string_set_clear)))
3519
string_set cancelled_filenames = {};
3520
const mono_microsecs current_time = 0;
3521
3522
bool quit_now = false;
3523
buffer password = {};
3524
bool mandos_client_exited = false;
3525
bool password_is_read = false;
3526
3527
const char not_a_directory[] = "/dev/tty";
3528
3529
FILE *real_stderr = stderr;
3530
FILE *devnull = fopen("/dev/null", "we");
3531
g_assert_nonnull(devnull);
3532
stderr = devnull;
3533
g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3534
&password, not_a_directory,
3535
&cancelled_filenames,
3536
¤t_time,
3537
&mandos_client_exited,
3538
&password_is_read));
3539
stderr = real_stderr;
3540
g_assert_cmpint(fclose(devnull), ==, 0);
3541
3542
g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3543
}
3544
3455
3545
static void test_add_inotify_dir_watch_EAGAIN(__attribute__((unused))
3456
3546
test_fixture *fixture,
3457
3547
__attribute__((unused))
3672
3762
}
3673
3763
3674
3764
static
3765
void test_add_inotify_dir_watch_IN_MOVED_FROM(__attribute__((unused))
3766
test_fixture *fixture,
3767
__attribute__((unused))
3768
gconstpointer
3769
user_data){
3770
__attribute__((cleanup(cleanup_close)))
3771
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3772
g_assert_cmpint(epoll_fd, >=, 0);
3773
__attribute__((cleanup(cleanup_queue)))
3774
task_queue *queue = create_queue();
3775
g_assert_nonnull(queue);
3776
__attribute__((cleanup(string_set_clear)))
3777
string_set cancelled_filenames = {};
3778
const mono_microsecs current_time = 0;
3779
3780
bool quit_now = false;
3781
buffer password = {};
3782
bool mandos_client_exited = false;
3783
bool password_is_read = false;
3784
3785
__attribute__((cleanup(cleanup_string)))
3786
char *tempdir = make_temporary_directory();
3787
g_assert_nonnull(tempdir);
3788
3789
__attribute__((cleanup(cleanup_string)))
3790
char *tempfilename = make_temporary_file_in_directory(tempdir);
3791
g_assert_nonnull(tempfilename);
3792
3793
__attribute__((cleanup(cleanup_string)))
3794
char *targetdir = make_temporary_directory();
3795
g_assert_nonnull(targetdir);
3796
3797
__attribute__((cleanup(cleanup_string)))
3798
char *targetfilename = NULL;
3799
g_assert_cmpint(asprintf(&targetfilename, "%s/%s", targetdir,
3800
basename(tempfilename)), >, 0);
3801
g_assert_nonnull(targetfilename);
3802
3803
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3804
&password, tempdir,
3805
&cancelled_filenames,
3806
¤t_time,
3807
&mandos_client_exited,
3808
&password_is_read));
3809
3810
g_assert_cmpint(rename(tempfilename, targetfilename), ==, 0);
3811
3812
const task_context *const added_read_task
3813
= find_matching_task(queue,
3814
(task_context){ .func=read_inotify_event });
3815
g_assert_nonnull(added_read_task);
3816
3817
/* "sufficient to read at least one event." - inotify(7) */
3818
const size_t ievent_size = (sizeof(struct inotify_event)
3819
+ NAME_MAX + 1);
3820
struct inotify_event *ievent = malloc(ievent_size);
3821
g_assert_nonnull(ievent);
3822
3823
ssize_t read_size = read(added_read_task->fd, ievent, ievent_size);
3824
3825
g_assert_cmpint((int)read_size, >, 0);
3826
g_assert_true(ievent->mask & IN_MOVED_FROM);
3827
g_assert_cmpstr(ievent->name, ==, basename(tempfilename));
3828
3829
free(ievent);
3830
3831
g_assert_cmpint(unlink(targetfilename), ==, 0);
3832
g_assert_cmpint(rmdir(targetdir), ==, 0);
3833
g_assert_cmpint(rmdir(tempdir), ==, 0);
3834
}
3835
3836
static
3675
3837
void test_add_inotify_dir_watch_IN_DELETE(__attribute__((unused))
3676
3838
test_fixture *fixture,
3677
3839
__attribute__((unused))
3735
3897
g_assert_cmpint(rmdir(tempdir), ==, 0);
3736
3898
}
3737
3899
3900
static
3901
void test_add_inotify_dir_watch_IN_EXCL_UNLINK(__attribute__((unused))
3902
test_fixture *fixture,
3903
__attribute__((unused))
3904
gconstpointer
3905
user_data){
3906
__attribute__((cleanup(cleanup_close)))
3907
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3908
g_assert_cmpint(epoll_fd, >=, 0);
3909
__attribute__((cleanup(cleanup_queue)))
3910
task_queue *queue = create_queue();
3911
g_assert_nonnull(queue);
3912
__attribute__((cleanup(string_set_clear)))
3913
string_set cancelled_filenames = {};
3914
const mono_microsecs current_time = 0;
3915
3916
bool quit_now = false;
3917
buffer password = {};
3918
bool mandos_client_exited = false;
3919
bool password_is_read = false;
3920
3921
__attribute__((cleanup(cleanup_string)))
3922
char *tempdir = make_temporary_directory();
3923
g_assert_nonnull(tempdir);
3924
3925
__attribute__((cleanup(cleanup_string)))
3926
char *tempfile = make_temporary_file_in_directory(tempdir);
3927
g_assert_nonnull(tempfile);
3928
int tempfile_fd = open(tempfile, O_WRONLY | O_CLOEXEC | O_NOCTTY
3929
| O_NOFOLLOW);
3930
g_assert_cmpint(tempfile_fd, >, 2);
3931
3932
g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
3933
&password, tempdir,
3934
&cancelled_filenames,
3935
¤t_time,
3936
&mandos_client_exited,
3937
&password_is_read));
3938
g_assert_cmpint(unlink(tempfile), ==, 0);
3939
3940
g_assert_cmpuint((unsigned int)queue->length, >, 0);
3941
3942
const task_context *const added_read_task
3943
= find_matching_task(queue,
3944
(task_context){ .func=read_inotify_event });
3945
g_assert_nonnull(added_read_task);
3946
3947
g_assert_cmpint(added_read_task->fd, >, 2);
3948
g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));
3949
3950
/* "sufficient to read at least one event." - inotify(7) */
3951
const size_t ievent_size = (sizeof(struct inotify_event)
3952
+ NAME_MAX + 1);
3953
struct inotify_event *ievent = malloc(ievent_size);
3954
g_assert_nonnull(ievent);
3955
3956
ssize_t read_size = 0;
3957
read_size = read(added_read_task->fd, ievent, ievent_size);
3958
3959
g_assert_cmpint((int)read_size, >, 0);
3960
g_assert_true(ievent->mask & IN_DELETE);
3961
g_assert_cmpstr(ievent->name, ==, basename(tempfile));
3962
3963
g_assert_cmpint(close(tempfile_fd), ==, 0);
3964
3965
/* IN_EXCL_UNLINK should make the closing of the previously unlinked
3966
file not appear as an ievent, so we should not see it now. */
3967
read_size = read(added_read_task->fd, ievent, ievent_size);
3968
g_assert_cmpint((int)read_size, ==, -1);
3969
g_assert_true(errno == EAGAIN);
3970
3971
free(ievent);
3972
3973
g_assert_cmpint(rmdir(tempdir), ==, 0);
3974
}
3975
3738
3976
static void test_read_inotify_event_readerror(__attribute__((unused))
3739
3977
test_fixture *fixture,
3740
3978
__attribute__((unused))
3746
3984
const mono_microsecs current_time = 0;
3747
3985
3748
3986
/* Reading /proc/self/mem from offset 0 will always result in EIO */
3749
const int fd = open("/proc/self/mem", O_RDONLY | O_CLOEXEC);
3987
const int fd = open("/proc/self/mem",
3988
O_RDONLY | O_CLOEXEC | O_NOCTTY);
3750
3989
3751
3990
bool quit_now = false;
3752
3991
__attribute__((cleanup(cleanup_queue)))
4104
4343
}));
4105
4344
}
4106
4345
4346
static
4347
void test_read_inotify_event_IN_MOVED_FROM(__attribute__((unused))
4348
test_fixture *fixture,
4349
__attribute__((unused))
4350
gconstpointer user_data){
4351
__attribute__((cleanup(cleanup_close)))
4352
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4353
g_assert_cmpint(epoll_fd, >=, 0);
4354
__attribute__((cleanup(string_set_clear)))
4355
string_set cancelled_filenames = {};
4356
const mono_microsecs current_time = 0;
4357
4358
int pipefds[2];
4359
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4360
4361
/* "sufficient to read at least one event." - inotify(7) */
4362
const size_t ievent_max_size = (sizeof(struct inotify_event)
4363
+ NAME_MAX + 1);
4364
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4365
struct {
4366
struct inotify_event event;
4367
char name_buffer[NAME_MAX + 1];
4368
} ievent_buffer;
4369
struct inotify_event *const ievent = &ievent_buffer.event;
4370
4371
const char dummy_file_name[] = "ask.dummy_file_name";
4372
ievent->mask = IN_MOVED_FROM;
4373
ievent->len = sizeof(dummy_file_name);
4374
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4375
const size_t ievent_size = (sizeof(struct inotify_event)
4376
+ sizeof(dummy_file_name));
4377
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4378
==, ievent_size);
4379
g_assert_cmpint(close(pipefds[1]), ==, 0);
4380
4381
bool quit_now = false;
4382
buffer password = {};
4383
bool mandos_client_exited = false;
4384
bool password_is_read = false;
4385
__attribute__((cleanup(cleanup_queue)))
4386
task_queue *queue = create_queue();
4387
g_assert_nonnull(queue);
4388
4389
task_context task = {
4390
.func=read_inotify_event,
4391
.epoll_fd=epoll_fd,
4392
.fd=pipefds[0],
4393
.quit_now=&quit_now,
4394
.password=&password,
4395
.filename=strdup("/nonexistent"),
4396
.cancelled_filenames=&cancelled_filenames,
4397
.current_time=¤t_time,
4398
.mandos_client_exited=&mandos_client_exited,
4399
.password_is_read=&password_is_read,
4400
};
4401
task.func(task, queue);
4402
g_assert_false(quit_now);
4403
g_assert_true(queue->next_run == 0);
4404
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4405
4406
g_assert_nonnull(find_matching_task(queue, (task_context){
4407
.func=read_inotify_event,
4408
.epoll_fd=epoll_fd,
4409
.fd=pipefds[0],
4410
.quit_now=&quit_now,
4411
.password=&password,
4412
.filename=task.filename,
4413
.cancelled_filenames=&cancelled_filenames,
4414
.current_time=¤t_time,
4415
.mandos_client_exited=&mandos_client_exited,
4416
.password_is_read=&password_is_read,
4417
}));
4418
4419
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4420
EPOLLIN | EPOLLRDHUP));
4421
4422
__attribute__((cleanup(cleanup_string)))
4423
char *filename = NULL;
4424
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4425
dummy_file_name), >, 0);
4426
g_assert_nonnull(filename);
4427
g_assert_true(string_set_contains(*task.cancelled_filenames,
4428
filename));
4429
}
4430
4107
4431
static void test_read_inotify_event_IN_DELETE(__attribute__((unused))
4108
4432
test_fixture *fixture,
4109
4433
__attribute__((unused))
4342
4666
EPOLLIN | EPOLLRDHUP));
4343
4667
}
4344
4668
4669
static void
4670
test_read_inotify_event_IN_MOVED_FROM_badname(__attribute__((unused))
4671
test_fixture *fixture,
4672
__attribute__((unused))
4673
gconstpointer
4674
user_data){
4675
__attribute__((cleanup(cleanup_close)))
4676
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
4677
g_assert_cmpint(epoll_fd, >=, 0);
4678
__attribute__((cleanup(string_set_clear)))
4679
string_set cancelled_filenames = {};
4680
const mono_microsecs current_time = 0;
4681
4682
int pipefds[2];
4683
g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);
4684
4685
/* "sufficient to read at least one event." - inotify(7) */
4686
const size_t ievent_max_size = (sizeof(struct inotify_event)
4687
+ NAME_MAX + 1);
4688
g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);
4689
struct {
4690
struct inotify_event event;
4691
char name_buffer[NAME_MAX + 1];
4692
} ievent_buffer;
4693
struct inotify_event *const ievent = &ievent_buffer.event;
4694
4695
const char dummy_file_name[] = "ignored.dummy_file_name";
4696
ievent->mask = IN_MOVED_FROM;
4697
ievent->len = sizeof(dummy_file_name);
4698
memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
4699
const size_t ievent_size = (sizeof(struct inotify_event)
4700
+ sizeof(dummy_file_name));
4701
g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
4702
==, ievent_size);
4703
g_assert_cmpint(close(pipefds[1]), ==, 0);
4704
4705
bool quit_now = false;
4706
buffer password = {};
4707
bool mandos_client_exited = false;
4708
bool password_is_read = false;
4709
__attribute__((cleanup(cleanup_queue)))
4710
task_queue *queue = create_queue();
4711
g_assert_nonnull(queue);
4712
4713
task_context task = {
4714
.func=read_inotify_event,
4715
.epoll_fd=epoll_fd,
4716
.fd=pipefds[0],
4717
.quit_now=&quit_now,
4718
.password=&password,
4719
.filename=strdup("/nonexistent"),
4720
.cancelled_filenames=&cancelled_filenames,
4721
.current_time=¤t_time,
4722
.mandos_client_exited=&mandos_client_exited,
4723
.password_is_read=&password_is_read,
4724
};
4725
task.func(task, queue);
4726
g_assert_false(quit_now);
4727
g_assert_true(queue->next_run == 0);
4728
g_assert_cmpuint((unsigned int)queue->length, ==, 1);
4729
4730
g_assert_nonnull(find_matching_task(queue, (task_context){
4731
.func=read_inotify_event,
4732
.epoll_fd=epoll_fd,
4733
.fd=pipefds[0],
4734
.quit_now=&quit_now,
4735
.password=&password,
4736
.filename=task.filename,
4737
.cancelled_filenames=&cancelled_filenames,
4738
.current_time=¤t_time,
4739
.mandos_client_exited=&mandos_client_exited,
4740
.password_is_read=&password_is_read,
4741
}));
4742
4743
g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],
4744
EPOLLIN | EPOLLRDHUP));
4745
4746
__attribute__((cleanup(cleanup_string)))
4747
char *filename = NULL;
4748
g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,
4749
dummy_file_name), >, 0);
4750
g_assert_nonnull(filename);
4751
g_assert_false(string_set_contains(cancelled_filenames, filename));
4752
}
4753
4345
4754
static
4346
4755
void test_read_inotify_event_IN_DELETE_badname(__attribute__((unused))
4347
4756
test_fixture *fixture,
5267
5676
__attribute__((unused))
5268
5677
gconstpointer user_data){
5269
5678
__attribute__((cleanup(cleanup_close)))
5270
const int epoll_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);
5679
const int epoll_fd = open("/dev/null",
5680
O_WRONLY | O_CLOEXEC | O_NOCTTY);
5271
5681
__attribute__((cleanup(cleanup_string)))
5272
5682
char *const question_filename = strdup("/nonexistent/question");
5273
5683
g_assert_nonnull(question_filename);
5402
5812
char write_data[PIPE_BUF];
5403
5813
{
5404
5814
/* Construct test password buffer */
5405
/* Start with + since that is what the real procotol uses */
5815
/* Start with + since that is what the real protocol uses */
5406
5816
write_data[0] = '+';
5407
5817
/* Set a special character at string end just to mark the end */
5408
5818
write_data[sizeof(write_data)-2] = 'y';
5560
5970
char *const filename = strdup("/nonexistent/socket");
5561
5971
__attribute__((cleanup(string_set_clear)))
5562
5972
string_set cancelled_filenames = {};
5563
const size_t oversized = 1024*1024; /* Limit seems to be 212960 */
5564
__attribute__((cleanup(cleanup_buffer)))
5565
buffer password = {
5566
.data=malloc(oversized),
5567
.length=oversized,
5568
.allocated=oversized,
5973
int socketfds[2];
5974
5975
/* Find a message size which triggers EMSGSIZE */
5976
__attribute__((cleanup(cleanup_string)))
5977
char *message_buffer = NULL;
5978
size_t message_size = PIPE_BUF + 1;
5979
for(ssize_t ssret = 0; ssret >= 0; message_size += 1024){
5980
if(message_size >= 1024*1024*1024){ /* 1 GiB */
5981
g_test_skip("Skipping EMSGSIZE test: Will not try 1GiB");
5982
return;
5983
}
5984
message_buffer = realloc(message_buffer, message_size);
5985
if(message_buffer == NULL){
5986
g_test_skip("Skipping EMSGSIZE test");
5987
g_test_message("Failed to malloc() %" PRIuMAX " bytes",
5988
(uintmax_t)message_size);
5989
return;
5990
}
5991
/* Fill buffer with 'x' */
5992
memset(message_buffer, 'x', message_size);
5993
/* Create a new socketpair for each message size to avoid having
5994
to empty the pipe by reading the message to a separate buffer
5995
*/
5996
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
5997
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
5998
socketfds), ==, 0);
5999
ssret = send(socketfds[1], message_buffer, message_size,
6000
MSG_NOSIGNAL);
6001
error_t saved_errno = errno;
6002
g_assert_cmpint(close(socketfds[0]), ==, 0);
6003
g_assert_cmpint(close(socketfds[1]), ==, 0);
6004
6005
if(ssret < 0){
6006
if(saved_errno != EMSGSIZE) {
6007
g_test_skip("Skipping EMSGSIZE test");
6008
g_test_message("Error on send(%" PRIuMAX " bytes): %s",
6009
(uintmax_t)message_size,
6010
strerror(saved_errno));
6011
return;
6012
}
6013
break;
6014
} else if(ssret != (ssize_t)message_size){
6015
g_test_skip("Skipping EMSGSIZE test");
6016
g_test_message("Partial send(): %" PRIuMAX " of %" PRIdMAX
6017
" bytes", (uintmax_t)ssret,
6018
(intmax_t)message_size);
6019
return;
6020
}
6021
}
6022
g_test_message("EMSGSIZE triggered by %" PRIdMAX " bytes",
6023
(intmax_t)message_size);
6024
6025
buffer password = {
6026
.data=message_buffer,
6027
.length=message_size - 2, /* Compensate for added '+' and NUL */
6028
.allocated=message_size,
5569
6029
};
5570
g_assert_nonnull(password.data);
5571
6030
if(mlock(password.data, password.allocated) != 0){
5572
6031
g_assert_true(errno == EPERM or errno == ENOMEM);
5573
6032
}
5574
/* Construct test password buffer */
5575
/* Start with + since that is what the real procotol uses */
5576
password.data[0] = '+';
5577
/* Set a special character at string end just to mark the end */
5578
password.data[oversized-3] = 'y';
5579
/* Set NUL at buffer end, as suggested by the protocol */
5580
password.data[oversized-2] = '\0';
5581
/* Fill rest of password with 'x' */
5582
memset(password.data+1, 'x', oversized-3);
5583
6033
5584
6034
__attribute__((cleanup(cleanup_queue)))
5585
6035
task_queue *queue = create_queue();
5586
6036
g_assert_nonnull(queue);
5587
int socketfds[2];
5588
6037
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
5589
6038
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
5590
6039
socketfds), ==, 0);
5677
6126
__attribute__((unused))
5678
6127
gconstpointer user_data){
5679
6128
__attribute__((cleanup(cleanup_close)))
5680
const int epoll_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);
6129
const int epoll_fd = open("/dev/null",
6130
O_WRONLY | O_CLOEXEC | O_NOCTTY);
5681
6131
__attribute__((cleanup(cleanup_string)))
5682
6132
char *const question_filename = strdup("/nonexistent/question");
5683
6133
g_assert_nonnull(question_filename);
5946
6396
const char *const
5947
6397
dirname){
5948
6398
__attribute__((cleanup(cleanup_close)))
5949
const int devnull_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);
6399
const int devnull_fd = open("/dev/null",
6400
O_WRONLY | O_CLOEXEC | O_NOCTTY);
5950
6401
g_assert_cmpint(devnull_fd, >=, 0);
5951
6402
__attribute__((cleanup(cleanup_close)))
5952
6403
const int real_stderr_fd = dup(STDERR_FILENO);
7495
7946
test_add("/parse_arguments/mixed", test_parse_arguments_mixed);
7496
7947
test_add("/queue/create", test_create_queue);
7497
7948
test_add("/queue/add", test_add_to_queue);
7949
test_add("/queue/add/overflow", test_add_to_queue_overflow);
7498
7950
test_add("/queue/has_question/empty",
7499
7951
test_queue_has_question_empty);
7500
7952
test_add("/queue/has_question/false",
7587
8039
test_add_inotify_dir_watch);
7588
8040
test_add_st("/task-creators/add_inotify_dir_watch/fail",
7589
8041
test_add_inotify_dir_watch_fail);
8042
test_add_st("/task-creators/add_inotify_dir_watch/not-a-directory",
8043
test_add_inotify_dir_watch_nondir);
7590
8044
test_add_st("/task-creators/add_inotify_dir_watch/EAGAIN",
7591
8045
test_add_inotify_dir_watch_EAGAIN);
7592
8046
test_add_st("/task-creators/add_inotify_dir_watch/IN_CLOSE_WRITE",
7593
8047
test_add_inotify_dir_watch_IN_CLOSE_WRITE);
7594
8048
test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_TO",
7595
8049
test_add_inotify_dir_watch_IN_MOVED_TO);
8050
test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_FROM",
8051
test_add_inotify_dir_watch_IN_MOVED_FROM);
8052
test_add_st("/task-creators/add_inotify_dir_watch/IN_EXCL_UNLINK",
8053
test_add_inotify_dir_watch_IN_EXCL_UNLINK);
7596
8054
test_add_st("/task-creators/add_inotify_dir_watch/IN_DELETE",
7597
8055
test_add_inotify_dir_watch_IN_DELETE);
7598
8056
test_add_st("/task/read_inotify_event/readerror",
7607
8065
test_read_inotify_event_IN_CLOSE_WRITE);
7608
8066
test_add_st("/task/read_inotify_event/IN_MOVED_TO",
7609
8067
test_read_inotify_event_IN_MOVED_TO);
8068
test_add_st("/task/read_inotify_event/IN_MOVED_FROM",
8069
test_read_inotify_event_IN_MOVED_FROM);
7610
8070
test_add_st("/task/read_inotify_event/IN_DELETE",
7611
8071
test_read_inotify_event_IN_DELETE);
7612
8072
test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE/badname",
7613
8073
test_read_inotify_event_IN_CLOSE_WRITE_badname);
7614
8074
test_add_st("/task/read_inotify_event/IN_MOVED_TO/badname",
7615
8075
test_read_inotify_event_IN_MOVED_TO_badname);
8076
test_add_st("/task/read_inotify_event/IN_MOVED_FROM/badname",
8077
test_read_inotify_event_IN_MOVED_FROM_badname);
7616
8078
test_add_st("/task/read_inotify_event/IN_DELETE/badname",
7617
8079
test_read_inotify_event_IN_DELETE_badname);
7618
8080
test_add_st("/task/open_and_parse_question/ENOENT",
7715
8177
g_option_context_set_help_enabled(context, FALSE);
7716
8178
g_option_context_set_ignore_unknown_options(context, TRUE);
7717
8179
7718
gboolean run_tests = FALSE;
8180
gboolean should_run_tests = FALSE;
7719
8181
GOptionEntry entries[] = {
7720
8182
{ "test", 0, 0, G_OPTION_ARG_NONE,
7721
&run_tests, "Run tests", NULL },
8183
&should_run_tests, "Run tests", NULL },
7722
8184
{ NULL }
7723
8185
};
7724
8186
g_option_context_add_main_entries(context, entries, NULL);
7731
8193
}
7732
8194
7733
8195
g_option_context_free(context);
7734
return run_tests != FALSE;
8196
return should_run_tests != FALSE;
7735
8197
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0