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- Committer: Teddy Hogeborn
- Date: 2011-10-05 16:02:22 UTC
- mfrom: (505.1.2 teddy)
- Revision ID: teddy@recompile.se-20111005160222-e0jz9fjqlk26vbyl
Change "fukt.bsnet.se" to "recompile.se" throughout.
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
plugins.d/password-prompt.c
2
2
/*
3
3
* Password-prompt - Read a password from the terminal and print it
4
4
*
5
* Copyright © 2008-2019, 2021 Teddy Hogeborn
6
* Copyright © 2008-2019, 2021 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
5
* Copyright © 2008-2010 Teddy Hogeborn
6
* Copyright © 2008-2010 Björn Påhlsson
7
*
8
* This program is free software: you can redistribute it and/or
9
* modify it under the terms of the GNU General Public License as
10
* published by the Free Software Foundation, either version 3 of the
11
* License, or (at your option) any later version.
12
*
13
* This program is distributed in the hope that it will be useful, but
16
14
* WITHOUT ANY WARRANTY; without even the implied warranty of
17
15
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18
16
* General Public License for more details.
19
17
*
20
18
* You should have received a copy of the GNU General Public License
21
* along with Mandos. If not, see <http://www.gnu.org/licenses/>.
19
* along with this program. If not, see
20
* <http://www.gnu.org/licenses/>.
22
21
*
23
22
* Contact the authors at <mandos@recompile.se>.
24
23
*/
25
24
26
#define _GNU_SOURCE /* vasprintf(),
27
program_invocation_short_name,
28
asprintf(), getline() */
29
#include <sys/types.h> /* sig_atomic_t, pid_t */
25
#define _GNU_SOURCE /* getline(), asprintf() */
26
27
#include <termios.h> /* struct termios, tcsetattr(),
28
TCSAFLUSH, tcgetattr(), ECHO */
29
#include <unistd.h> /* struct termios, tcsetattr(),
30
STDIN_FILENO, TCSAFLUSH,
31
tcgetattr(), ECHO, readlink() */
32
#include <signal.h> /* sig_atomic_t, raise(), struct
33
sigaction, sigemptyset(),
34
sigaction(), sigaddset(), SIGINT,
35
SIGQUIT, SIGHUP, SIGTERM,
36
raise() */
37
#include <stddef.h> /* NULL, size_t, ssize_t */
38
#include <sys/types.h> /* ssize_t, struct dirent, pid_t,
39
ssize_t, open() */
40
#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE,
41
getenv(), free() */
42
#include <dirent.h> /* scandir(), alphasort() */
43
#include <stdio.h> /* fprintf(), stderr, getline(),
44
stdin, feof(), fputc(), vfprintf(),
45
vasprintf() */
46
#include <errno.h> /* errno, EBADF, ENOTTY, EINVAL,
47
EFAULT, EFBIG, EIO, ENOSPC, EINTR
48
*/
49
#include <error.h> /* error() */
50
#include <iso646.h> /* or, not */
30
51
#include <stdbool.h> /* bool, false, true */
31
#include <argp.h> /* argp_program_version,
32
argp_program_bug_address,
33
struct argp_option,
34
struct argp_state, argp_state_help,
35
ARGP_HELP_STD_HELP,
36
ARGP_HELP_EXIT_ERR,
37
ARGP_HELP_EXIT_OK, ARGP_HELP_USAGE,
38
argp_err_exit_status,
39
ARGP_ERR_UNKNOWN, argp_parse(),
40
ARGP_IN_ORDER, ARGP_NO_HELP */
41
#include <stdarg.h> /* va_list, va_start(), vfprintf() */
42
#include <stdio.h> /* vasprintf(), fprintf(), stderr,
43
vfprintf(), asprintf(), getline(),
44
stdin, feof(), clearerr(),
45
fputc() */
46
#include <errno.h> /* program_invocation_short_name,
47
errno, ENOENT, error_t, ENOMEM,
48
EINVAL, EBADF, ENOTTY, EFAULT,
49
EFBIG, EIO, ENOSPC, EINTR */
50
#include <string.h> /* strerror(), strrchr(), strcmp() */
51
#include <error.h> /* error() */
52
#include <stdlib.h> /* free(), realloc(), EXIT_SUCCESS,
53
EXIT_FAILURE, getenv() */
54
#include <unistd.h> /* access(), R_OK, ssize_t, close(),
55
read(), STDIN_FILENO, write(),
56
STDOUT_FILENO */
57
#include <dirent.h> /* struct dirent, scandir(),
58
alphasort() */
59
#include <inttypes.h> /* uintmax_t, strtoumax() */
60
#include <iso646.h> /* or, and, not */
61
#include <fcntl.h> /* open(), O_RDONLY */
62
#include <stddef.h> /* NULL, size_t */
63
#include <termios.h> /* struct termios, tcgetattr(),
64
tcflag_t, ECHO, tcsetattr(),
65
TCSAFLUSH */
66
#include <signal.h> /* struct sigaction, sigemptyset(),
67
sigaddset(), SIGINT, SIGHUP,
68
SIGTERM, SIG_IGN, SIG_DFL,
69
raise() */
70
#include <sysexits.h> /* EX_OSERR, EX_USAGE, EX_UNAVAILABLE,
71
EX_IOERR, EX_OSFILE, EX_OK */
52
#include <inttypes.h> /* strtoumax() */
53
#include <sys/stat.h> /* struct stat, lstat(), open() */
54
#include <string.h> /* strlen, rindex, memcmp, strerror()
55
*/
56
#include <argp.h> /* struct argp_option, struct
57
argp_state, struct argp,
58
argp_parse(), error_t,
59
ARGP_KEY_ARG, ARGP_KEY_END,
60
ARGP_ERR_UNKNOWN */
61
#include <sysexits.h> /* EX_SOFTWARE, EX_OSERR,
62
EX_UNAVAILABLE, EX_IOERR, EX_OK */
63
#include <fcntl.h> /* open() */
64
#include <stdarg.h> /* va_list, va_start(), ... */
72
65
73
66
volatile sig_atomic_t quit_now = 0;
74
67
int signal_received;
80
73
const char plymouth_name[] = "plymouthd";
81
74
82
75
/* Function to use when printing errors */
83
__attribute__((format (gnu_printf, 3, 4)))
84
76
void error_plus(int status, int errnum, const char *formatstring,
85
77
...){
86
78
va_list ap;
89
81
90
82
va_start(ap, formatstring);
91
83
ret = vasprintf(&text, formatstring, ap);
92
if(ret == -1){
84
if (ret == -1){
93
85
fprintf(stderr, "Mandos plugin %s: ",
94
86
program_invocation_short_name);
95
87
vfprintf(stderr, formatstring, ap);
96
fprintf(stderr, ": %s\n", strerror(errnum));
88
fprintf(stderr, ": ");
89
fprintf(stderr, "%s\n", strerror(errnum));
97
90
error(status, errno, "vasprintf while printing error");
98
91
return;
99
92
}
116
109
from the terminal. Password-prompt will exit if it detects
117
110
plymouth since plymouth performs the same functionality.
118
111
*/
119
if(access("/run/plymouth/pid", R_OK) == 0){
120
return true;
121
}
122
123
__attribute__((nonnull))
124
112
int is_plymouth(const struct dirent *proc_entry){
125
113
int ret;
126
114
int cl_fd;
127
115
{
128
uintmax_t proc_id;
116
uintmax_t maxvalue;
129
117
char *tmp;
130
118
errno = 0;
131
proc_id = strtoumax(proc_entry->d_name, &tmp, 10);
119
maxvalue = strtoumax(proc_entry->d_name, &tmp, 10);
132
120
133
121
if(errno != 0 or *tmp != '\0'
134
or proc_id != (uintmax_t)((pid_t)proc_id)){
122
or maxvalue != (uintmax_t)((pid_t)maxvalue)){
135
123
return 0;
136
124
}
137
125
}
140
128
ret = asprintf(&cmdline_filename, "/proc/%s/cmdline",
141
129
proc_entry->d_name);
142
130
if(ret == -1){
143
error_plus(0, errno, "asprintf");
131
error(0, errno, "asprintf");
144
132
return 0;
145
133
}
146
134
149
137
free(cmdline_filename);
150
138
if(cl_fd == -1){
151
139
if(errno != ENOENT){
152
error_plus(0, errno, "open");
140
error(0, errno, "open");
153
141
}
154
142
return 0;
155
143
}
166
154
if(cmdline_len + blocksize + 1 > cmdline_allocated){
167
155
tmp = realloc(cmdline, cmdline_allocated + blocksize + 1);
168
156
if(tmp == NULL){
169
error_plus(0, errno, "realloc");
157
error(0, errno, "realloc");
170
158
free(cmdline);
171
159
close(cl_fd);
172
160
return 0;
179
167
sret = read(cl_fd, cmdline + cmdline_len,
180
168
cmdline_allocated - cmdline_len);
181
169
if(sret == -1){
182
error_plus(0, errno, "read");
170
error(0, errno, "read");
183
171
free(cmdline);
184
172
close(cl_fd);
185
173
return 0;
188
176
} while(sret != 0);
189
177
ret = close(cl_fd);
190
178
if(ret == -1){
191
error_plus(0, errno, "close");
179
error(0, errno, "close");
192
180
free(cmdline);
193
181
return 0;
194
182
}
223
211
struct dirent **direntries = NULL;
224
212
int ret;
225
213
ret = scandir("/proc", &direntries, is_plymouth, alphasort);
226
if(ret == -1){
227
error_plus(1, errno, "scandir");
228
}
229
{
230
int i = ret;
231
while(i--){
232
free(direntries[i]);
233
}
214
if (ret == -1){
215
error(1, errno, "scandir");
234
216
}
235
217
free(direntries);
236
218
return ret > 0;
244
226
struct termios t_new, t_old;
245
227
char *buffer = NULL;
246
228
char *prefix = NULL;
247
char *prompt = NULL;
248
229
int status = EXIT_SUCCESS;
249
230
struct sigaction old_action,
250
231
new_action = { .sa_handler = termination_handler,
254
235
{ .name = "prefix", .key = 'p',
255
236
.arg = "PREFIX", .flags = 0,
256
237
.doc = "Prefix shown before the prompt", .group = 2 },
257
{ .name = "prompt", .key = 129,
258
.arg = "PROMPT", .flags = 0,
259
.doc = "The prompt to show", .group = 2 },
260
238
{ .name = "debug", .key = 128,
261
239
.doc = "Debug mode", .group = 3 },
262
240
/*
271
249
{ .name = NULL }
272
250
};
273
251
274
__attribute__((nonnull(3)))
275
252
error_t parse_opt (int key, char *arg, struct argp_state *state){
276
253
errno = 0;
277
254
switch (key){
278
case 'p': /* --prefix */
255
case 'p':
279
256
prefix = arg;
280
257
break;
281
case 128: /* --debug */
258
case 128:
282
259
debug = true;
283
260
break;
284
case 129: /* --prompt */
285
prompt = arg;
286
break;
287
261
/*
288
262
* These reproduce what we would get without ARGP_NO_HELP
289
263
*/
291
265
argp_state_help(state, state->out_stream,
292
266
(ARGP_HELP_STD_HELP | ARGP_HELP_EXIT_ERR)
293
267
& ~(unsigned int)ARGP_HELP_EXIT_OK);
294
__builtin_unreachable();
295
268
case -3: /* --usage */
296
269
argp_state_help(state, state->out_stream,
297
270
ARGP_HELP_USAGE | ARGP_HELP_EXIT_ERR);
298
__builtin_unreachable();
299
271
case 'V': /* --version */
300
272
fprintf(state->out_stream, "%s\n", argp_program_version);
301
273
exit(argp_err_exit_status);
318
290
case ENOMEM:
319
291
default:
320
292
errno = ret;
321
error_plus(0, errno, "argp_parse");
293
error(0, errno, "argp_parse");
322
294
return EX_OSERR;
323
295
case EINVAL:
324
296
return EX_USAGE;
329
301
fprintf(stderr, "Starting %s\n", argv[0]);
330
302
}
331
303
332
if(conflict_detection()){
304
if (conflict_detection()){
333
305
if(debug){
334
306
fprintf(stderr, "Stopping %s because of conflict\n", argv[0]);
335
307
}
342
314
343
315
if(tcgetattr(STDIN_FILENO, &t_old) != 0){
344
316
int e = errno;
345
error_plus(0, errno, "tcgetattr");
317
error(0, errno, "tcgetattr");
346
318
switch(e){
347
319
case EBADF:
348
320
case ENOTTY:
355
327
sigemptyset(&new_action.sa_mask);
356
328
ret = sigaddset(&new_action.sa_mask, SIGINT);
357
329
if(ret == -1){
358
error_plus(0, errno, "sigaddset");
330
error(0, errno, "sigaddset");
359
331
return EX_OSERR;
360
332
}
361
333
ret = sigaddset(&new_action.sa_mask, SIGHUP);
362
334
if(ret == -1){
363
error_plus(0, errno, "sigaddset");
335
error(0, errno, "sigaddset");
364
336
return EX_OSERR;
365
337
}
366
338
ret = sigaddset(&new_action.sa_mask, SIGTERM);
367
339
if(ret == -1){
368
error_plus(0, errno, "sigaddset");
340
error(0, errno, "sigaddset");
369
341
return EX_OSERR;
370
342
}
371
343
/* Need to check if the handler is SIG_IGN before handling:
374
346
*/
375
347
ret = sigaction(SIGINT, NULL, &old_action);
376
348
if(ret == -1){
377
error_plus(0, errno, "sigaction");
349
error(0, errno, "sigaction");
378
350
return EX_OSERR;
379
351
}
380
352
if(old_action.sa_handler != SIG_IGN){
381
353
ret = sigaction(SIGINT, &new_action, NULL);
382
354
if(ret == -1){
383
error_plus(0, errno, "sigaction");
355
error(0, errno, "sigaction");
384
356
return EX_OSERR;
385
357
}
386
358
}
387
359
ret = sigaction(SIGHUP, NULL, &old_action);
388
360
if(ret == -1){
389
error_plus(0, errno, "sigaction");
361
error(0, errno, "sigaction");
390
362
return EX_OSERR;
391
363
}
392
364
if(old_action.sa_handler != SIG_IGN){
393
365
ret = sigaction(SIGHUP, &new_action, NULL);
394
366
if(ret == -1){
395
error_plus(0, errno, "sigaction");
367
error(0, errno, "sigaction");
396
368
return EX_OSERR;
397
369
}
398
370
}
399
371
ret = sigaction(SIGTERM, NULL, &old_action);
400
372
if(ret == -1){
401
error_plus(0, errno, "sigaction");
373
error(0, errno, "sigaction");
402
374
return EX_OSERR;
403
375
}
404
376
if(old_action.sa_handler != SIG_IGN){
405
377
ret = sigaction(SIGTERM, &new_action, NULL);
406
378
if(ret == -1){
407
error_plus(0, errno, "sigaction");
379
error(0, errno, "sigaction");
408
380
return EX_OSERR;
409
381
}
410
382
}
418
390
t_new.c_lflag &= ~(tcflag_t)ECHO;
419
391
if(tcsetattr(STDIN_FILENO, TCSAFLUSH, &t_new) != 0){
420
392
int e = errno;
421
error_plus(0, errno, "tcsetattr-echo");
393
error(0, errno, "tcsetattr-echo");
422
394
switch(e){
423
395
case EBADF:
424
396
case ENOTTY:
444
416
if(prefix){
445
417
fprintf(stderr, "%s ", prefix);
446
418
}
447
if(prompt != NULL){
448
fprintf(stderr, "%s: ", prompt);
449
} else {
419
{
450
420
const char *cryptsource = getenv("CRYPTTAB_SOURCE");
451
421
const char *crypttarget = getenv("CRYPTTAB_NAME");
452
422
/* Before cryptsetup 1.1.0~rc2 */
490
460
sret = write(STDOUT_FILENO, buffer + written, n - written);
491
461
if(sret < 0){
492
462
int e = errno;
493
error_plus(0, errno, "write");
463
error(0, errno, "write");
494
464
switch(e){
495
465
case EBADF:
496
466
case EFAULT:
512
482
sret = close(STDOUT_FILENO);
513
483
if(sret == -1){
514
484
int e = errno;
515
error_plus(0, errno, "close");
485
error(0, errno, "close");
516
486
switch(e){
517
487
case EBADF:
518
488
status = EX_OSFILE;
527
497
}
528
498
if(sret < 0){
529
499
int e = errno;
530
if(errno != EINTR){
531
if(not feof(stdin)){
532
error_plus(0, errno, "getline");
533
switch(e){
534
case EBADF:
535
status = EX_UNAVAILABLE;
536
break;
537
case EIO:
538
case EINVAL:
539
default:
540
status = EX_IOERR;
541
break;
542
}
500
if(errno != EINTR and not feof(stdin)){
501
error(0, errno, "getline");
502
switch(e){
503
case EBADF:
504
status = EX_UNAVAILABLE;
505
case EIO:
506
case EINVAL:
507
default:
508
status = EX_IOERR;
543
509
break;
544
} else {
545
clearerr(stdin);
546
510
}
511
break;
547
512
}
548
513
}
549
514
/* if(sret == 0), then the only sensible thing to do is to retry
562
527
fprintf(stderr, "Restoring terminal attributes\n");
563
528
}
564
529
if(tcsetattr(STDIN_FILENO, TCSAFLUSH, &t_old) != 0){
565
error_plus(0, errno, "tcsetattr+echo");
530
error(0, errno, "tcsetattr+echo");
566
531
}
567
532
568
533
if(quit_now){
570
535
old_action.sa_handler = SIG_DFL;
571
536
ret = sigaction(signal_received, &old_action, NULL);
572
537
if(ret == -1){
573
error_plus(0, errno, "sigaction");
538
error(0, errno, "sigaction");
574
539
}
575
540
raise(signal_received);
576
541
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0