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- Committer: Teddy Hogeborn
- Date: 2009-11-09 07:35:16 UTC
- Revision ID: teddy@fukt.bsnet.se-20091109073516-v1vem352uz0vuwrd
* dbus-mandos.conf: New; to be copied to
"/etc/dbus-1/system.d/mandos.conf".
"/etc/dbus-1/system.d/mandos.conf".
added
removed
plugins.d/usplash.c
31
31
#include <fcntl.h> /* open(), O_WRONLY, O_RDONLY */
32
32
#include <iso646.h> /* and, or, not*/
33
33
#include <errno.h> /* errno, EINTR */
34
#include <error.h>
35
34
#include <sys/types.h> /* size_t, ssize_t, pid_t, DIR, struct
36
35
dirent */
37
36
#include <stddef.h> /* NULL */
38
37
#include <string.h> /* strlen(), memcmp() */
39
#include <stdio.h> /* asprintf()*/
38
#include <stdio.h> /* asprintf(), perror() */
40
39
#include <unistd.h> /* close(), write(), readlink(),
41
40
read(), STDOUT_FILENO, sleep(),
42
41
fork(), setuid(), geteuid(),
43
42
setsid(), chdir(), dup2(),
44
43
STDERR_FILENO, execv() */
45
44
#include <stdlib.h> /* free(), EXIT_FAILURE, realloc(),
46
EXIT_SUCCESS, malloc(), _exit(),
47
getenv() */
45
EXIT_SUCCESS, malloc(), _exit() */
46
#include <stdlib.h> /* getenv() */
48
47
#include <dirent.h> /* opendir(), readdir(), closedir() */
49
48
#include <inttypes.h> /* intmax_t, strtoimax() */
50
49
#include <sys/stat.h> /* struct stat, lstat(), S_ISLNK */
154
153
size_t cmdline_len = 0;
155
154
DIR *proc_dir = opendir("/proc");
156
155
if(proc_dir == NULL){
157
error(0, errno, "opendir");
156
perror("opendir");
158
157
return -1;
159
158
}
160
159
errno = 0;
182
181
char *exe_link;
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182
ret = asprintf(&exe_link, "/proc/%s/exe", proc_ent->d_name);
184
183
if(ret == -1){
185
error(0, errno, "asprintf");
184
perror("asprintf");
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185
goto fail_find_usplash;
187
186
}
188
187
194
193
free(exe_link);
195
194
continue;
196
195
}
197
error(0, errno, "lstat");
196
perror("lstat");
198
197
free(exe_link);
199
198
goto fail_find_usplash;
200
199
}
225
224
ret = asprintf(&cmdline_filename, "/proc/%s/cmdline",
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proc_ent->d_name);
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if(ret == -1){
228
error(0, errno, "asprintf");
227
perror("asprintf");
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228
goto fail_find_usplash;
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229
}
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cl_fd = open(cmdline_filename, O_RDONLY);
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free(cmdline_filename);
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if(cl_fd == -1){
234
error(0, errno, "open");
233
perror("open");
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goto fail_find_usplash;
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}
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}
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if(cmdline_len + blocksize > cmdline_allocated){
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tmp = realloc(cmdline, cmdline_allocated + blocksize);
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if(tmp == NULL){
246
error(0, errno, "realloc");
245
perror("realloc");
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close(cl_fd);
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goto fail_find_usplash;
249
248
}
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sret = read(cl_fd, cmdline + cmdline_len,
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cmdline_allocated - cmdline_len);
256
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if(sret == -1){
257
error(0, errno, "read");
256
perror("read");
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close(cl_fd);
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goto fail_find_usplash;
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}
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} while(sret != 0);
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ret = close(cl_fd);
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if(ret == -1){
265
error(0, errno, "close");
264
perror("close");
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goto fail_find_usplash;
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266
}
268
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}
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/* Close directory */
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ret = closedir(proc_dir);
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if(ret == -1){
272
error(0, errno, "closedir");
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perror("closedir");
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goto fail_find_usplash;
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273
}
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/* Success */
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sigemptyset(&new_action.sa_mask);
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ret = sigaddset(&new_action.sa_mask, SIGINT);
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if(ret == -1){
327
error(0, errno, "sigaddset");
326
perror("sigaddset");
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status = EX_OSERR;
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goto failure;
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}
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ret = sigaddset(&new_action.sa_mask, SIGHUP);
332
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if(ret == -1){
333
error(0, errno, "sigaddset");
332
perror("sigaddset");
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status = EX_OSERR;
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goto failure;
336
335
}
337
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ret = sigaddset(&new_action.sa_mask, SIGTERM);
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if(ret == -1){
339
error(0, errno, "sigaddset");
338
perror("sigaddset");
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status = EX_OSERR;
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goto failure;
342
341
}
343
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ret = sigaction(SIGINT, NULL, &old_action);
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343
if(ret == -1){
345
344
if(errno != EINTR){
346
error(0, errno, "sigaction");
345
perror("sigaction");
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status = EX_OSERR;
348
347
}
349
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goto failure;
352
351
ret = sigaction(SIGINT, &new_action, NULL);
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if(ret == -1){
354
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if(errno != EINTR){
355
error(0, errno, "sigaction");
354
perror("sigaction");
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status = EX_OSERR;
357
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}
358
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goto failure;
361
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ret = sigaction(SIGHUP, NULL, &old_action);
362
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if(ret == -1){
363
362
if(errno != EINTR){
364
error(0, errno, "sigaction");
363
perror("sigaction");
365
364
status = EX_OSERR;
366
365
}
367
366
goto failure;
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369
ret = sigaction(SIGHUP, &new_action, NULL);
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370
if(ret == -1){
372
371
if(errno != EINTR){
373
error(0, errno, "sigaction");
372
perror("sigaction");
374
373
status = EX_OSERR;
375
374
}
376
375
goto failure;
379
378
ret = sigaction(SIGTERM, NULL, &old_action);
380
379
if(ret == -1){
381
380
if(errno != EINTR){
382
error(0, errno, "sigaction");
381
perror("sigaction");
383
382
status = EX_OSERR;
384
383
}
385
384
goto failure;
388
387
ret = sigaction(SIGTERM, &new_action, NULL);
389
388
if(ret == -1){
390
389
if(errno != EINTR){
391
error(0, errno, "sigaction");
390
perror("sigaction");
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391
status = EX_OSERR;
393
392
}
394
393
goto failure;
400
399
/* Write command to FIFO */
401
400
if(not usplash_write(&fifo_fd, "TIMEOUT", "0")){
402
401
if(errno != EINTR){
403
error(0, errno, "usplash_write");
402
perror("usplash_write");
404
403
status = EX_OSERR;
405
404
}
406
405
goto failure;
412
411
413
412
if(not usplash_write(&fifo_fd, "INPUTQUIET", prompt)){
414
413
if(errno != EINTR){
415
error(0, errno, "usplash_write");
414
perror("usplash_write");
416
415
status = EX_OSERR;
417
416
}
418
417
goto failure;
430
429
outfifo_fd = open("/dev/.initramfs/usplash_outfifo", O_RDONLY);
431
430
if(outfifo_fd == -1){
432
431
if(errno != EINTR){
433
error(0, errno, "open");
432
perror("open");
434
433
status = EX_OSERR;
435
434
}
436
435
goto failure;
449
448
char *tmp = realloc(buf, buf_allocated + blocksize);
450
449
if(tmp == NULL){
451
450
if(errno != EINTR){
452
error(0, errno, "realloc");
451
perror("realloc");
453
452
status = EX_OSERR;
454
453
}
455
454
goto failure;
461
460
buf_allocated - buf_len);
462
461
if(sret == -1){
463
462
if(errno != EINTR){
464
error(0, errno, "read");
463
perror("read");
465
464
status = EX_OSERR;
466
465
}
467
466
TEMP_FAILURE_RETRY(close(outfifo_fd));
476
475
ret = close(outfifo_fd);
477
476
if(ret == -1){
478
477
if(errno != EINTR){
479
error(0, errno, "close");
478
perror("close");
480
479
status = EX_OSERR;
481
480
}
482
481
goto failure;
489
488
490
489
if(not usplash_write(&fifo_fd, "TIMEOUT", "15")){
491
490
if(errno != EINTR){
492
error(0, errno, "usplash_write");
491
perror("usplash_write");
493
492
status = EX_OSERR;
494
493
}
495
494
goto failure;
502
501
ret = close(fifo_fd);
503
502
if(ret == -1){
504
503
if(errno != EINTR){
505
error(0, errno, "close");
504
perror("close");
506
505
status = EX_OSERR;
507
506
}
508
507
goto failure;
516
515
sret = write(STDOUT_FILENO, buf + written, buf_len - written);
517
516
if(sret == -1){
518
517
if(errno != EINTR){
519
error(0, errno, "write");
518
perror("write");
520
519
status = EX_OSERR;
521
520
}
522
521
goto failure;
553
552
if(fifo_fd != -1){
554
553
ret = (int)TEMP_FAILURE_RETRY(close(fifo_fd));
555
554
if(ret == -1 and errno != EINTR){
556
error(0, errno, "close");
555
perror("close");
557
556
}
558
557
fifo_fd = -1;
559
558
}
562
561
if(outfifo_fd != -1){
563
562
ret = (int)TEMP_FAILURE_RETRY(close(outfifo_fd));
564
563
if(ret == -1){
565
error(0, errno, "close");
564
perror("close");
566
565
}
567
566
}
568
567
576
575
(sizeof(char *)
577
576
* (size_t)(cmdline_argc + 2)));
578
577
if(tmp == NULL){
579
error(0, errno, "realloc");
578
perror("realloc");
580
579
free(cmdline_argv);
581
580
return status;
582
581
}
603
602
the real user ID (_mandos) */
604
603
ret = setuid(geteuid());
605
604
if(ret == -1){
606
error(0, errno, "setuid");
605
perror("setuid");
607
606
}
608
607
609
608
setsid();
610
609
ret = chdir("/");
611
if(ret == -1){
612
error(0, errno, "chdir");
613
_exit(EX_OSERR);
614
}
615
610
/* if(fork() != 0){ */
616
611
/* _exit(EXIT_SUCCESS); */
617
612
/* } */
618
613
ret = dup2(STDERR_FILENO, STDOUT_FILENO); /* replace our stdout */
619
614
if(ret == -1){
620
error(0, errno, "dup2");
615
perror("dup2");
621
616
_exit(EX_OSERR);
622
617
}
623
618
624
619
execv(usplash_name, cmdline_argv);
625
620
if(not interrupted_by_signal){
626
error(0, errno, "execv");
621
perror("execv");
627
622
}
628
623
free(cmdline);
629
624
free(cmdline_argv);
634
629
sleep(2);
635
630
if(not usplash_write(&fifo_fd, "PULSATE", NULL)){
636
631
if(errno != EINTR){
637
error(0, errno, "usplash_write");
632
perror("usplash_write");
638
633
}
639
634
}
640
635
642
637
if(fifo_fd != -1){
643
638
ret = (int)TEMP_FAILURE_RETRY(close(fifo_fd));
644
639
if(ret == -1 and errno != EINTR){
645
error(0, errno, "close");
640
perror("close");
646
641
}
647
642
fifo_fd = -1;
648
643
}
653
648
ret = (int)TEMP_FAILURE_RETRY(sigaction(signal_received,
654
649
&signal_action, NULL));
655
650
if(ret == -1){
656
error(0, errno, "sigaction");
651
perror("sigaction");
657
652
}
658
653
do {
659
654
ret = raise(signal_received);
660
655
} while(ret != 0 and errno == EINTR);
661
656
if(ret != 0){
662
error(0, errno, "raise");
657
perror("raise");
663
658
abort();
664
659
}
665
660
TEMP_FAILURE_RETRY(pause());
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