To get this branch, use:
bzr branch
http://bzr.recompile.se/loggerhead/mandos/trunk
« back to all changes in this revision
Viewing changes to plugins.d/mandos-client.c
- browse files at revision 505.3.7
- compare with another revision
- download diff
- download tarball
- view history from revision 505.3.7
- Committer: teddy at bsnet
- Date: 2011-11-13 20:49:21 UTC
- mto: (505.2.5 mandos-client-network-hooks)
- mto: This revision was merged to the branch mainline in revision 525.
- Revision ID: teddy@fukt.bsnet.se-20111113204921-vbnwtmuq01isvgsc
* initramfs-tools-hook: Install network hooks (and any required files)
in the initramfs image.
* plugins.d/mandos-client.c (main): Also set MANDOSNETHOOKDIR for
network hooks.
* plugins.d/mandos-client.xml (OPTIONS): Use <filename
class="directory">, not
<directory>.
in the initramfs image.
* plugins.d/mandos-client.c (main): Also set MANDOSNETHOOKDIR for
network hooks.
* plugins.d/mandos-client.xml (OPTIONS): Use <filename
class="directory">, not
<directory>.
- files removed:
- network-hooks.d
- files modified:
- Makefile
added
removed
plugins.d/mandos-client.c
174
174
perror(print_text);
175
175
}
176
176
177
int fprintf_plus(FILE *stream, const char *format, ...){
178
va_list ap;
179
va_start (ap, format);
180
181
TEMP_FAILURE_RETRY(fprintf(stream, "Mandos plugin %s: ",
182
program_invocation_short_name));
183
return TEMP_FAILURE_RETRY(vfprintf(stream, format, ap));
184
}
185
186
177
/*
187
178
* Make additional room in "buffer" for at least BUFFER_SIZE more
188
179
* bytes. "buffer_capacity" is how much is currently allocated,
262
253
263
254
rc = gpgme_data_new_from_fd(&pgp_data, fd);
264
255
if(rc != GPG_ERR_NO_ERROR){
265
fprintf_plus(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
266
gpgme_strsource(rc), gpgme_strerror(rc));
256
fprintf(stderr, "Mandos plugin mandos-client: "
257
"bad gpgme_data_new_from_fd: %s: %s\n",
258
gpgme_strsource(rc), gpgme_strerror(rc));
267
259
return false;
268
260
}
269
261
270
262
rc = gpgme_op_import(mc.ctx, pgp_data);
271
263
if(rc != GPG_ERR_NO_ERROR){
272
fprintf_plus(stderr, "bad gpgme_op_import: %s: %s\n",
273
gpgme_strsource(rc), gpgme_strerror(rc));
264
fprintf(stderr, "Mandos plugin mandos-client: "
265
"bad gpgme_op_import: %s: %s\n",
266
gpgme_strsource(rc), gpgme_strerror(rc));
274
267
return false;
275
268
}
276
269
283
276
}
284
277
285
278
if(debug){
286
fprintf_plus(stderr, "Initializing GPGME\n");
279
fprintf(stderr, "Mandos plugin mandos-client: "
280
"Initializing GPGME\n");
287
281
}
288
282
289
283
/* Init GPGME */
290
284
gpgme_check_version(NULL);
291
285
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
292
286
if(rc != GPG_ERR_NO_ERROR){
293
fprintf_plus(stderr, "bad gpgme_engine_check_version: %s: %s\n",
294
gpgme_strsource(rc), gpgme_strerror(rc));
287
fprintf(stderr, "Mandos plugin mandos-client: "
288
"bad gpgme_engine_check_version: %s: %s\n",
289
gpgme_strsource(rc), gpgme_strerror(rc));
295
290
return false;
296
291
}
297
292
298
293
/* Set GPGME home directory for the OpenPGP engine only */
299
294
rc = gpgme_get_engine_info(&engine_info);
300
295
if(rc != GPG_ERR_NO_ERROR){
301
fprintf_plus(stderr, "bad gpgme_get_engine_info: %s: %s\n",
302
gpgme_strsource(rc), gpgme_strerror(rc));
296
fprintf(stderr, "Mandos plugin mandos-client: "
297
"bad gpgme_get_engine_info: %s: %s\n",
298
gpgme_strsource(rc), gpgme_strerror(rc));
303
299
return false;
304
300
}
305
301
while(engine_info != NULL){
311
307
engine_info = engine_info->next;
312
308
}
313
309
if(engine_info == NULL){
314
fprintf_plus(stderr, "Could not set GPGME home dir to %s\n",
315
tempdir);
310
fprintf(stderr, "Mandos plugin mandos-client: "
311
"Could not set GPGME home dir to %s\n", tempdir);
316
312
return false;
317
313
}
318
314
319
315
/* Create new GPGME "context" */
320
316
rc = gpgme_new(&(mc.ctx));
321
317
if(rc != GPG_ERR_NO_ERROR){
322
fprintf_plus(stderr, "Mandos plugin mandos-client: "
323
"bad gpgme_new: %s: %s\n", gpgme_strsource(rc),
324
gpgme_strerror(rc));
318
fprintf(stderr, "Mandos plugin mandos-client: "
319
"bad gpgme_new: %s: %s\n", gpgme_strsource(rc),
320
gpgme_strerror(rc));
325
321
return false;
326
322
}
327
323
346
342
ssize_t plaintext_length = 0;
347
343
348
344
if(debug){
349
fprintf_plus(stderr, "Trying to decrypt OpenPGP data\n");
345
fprintf(stderr, "Mandos plugin mandos-client: "
346
"Trying to decrypt OpenPGP data\n");
350
347
}
351
348
352
349
/* Create new GPGME data buffer from memory cryptotext */
353
350
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
354
351
0);
355
352
if(rc != GPG_ERR_NO_ERROR){
356
fprintf_plus(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
357
gpgme_strsource(rc), gpgme_strerror(rc));
353
fprintf(stderr, "Mandos plugin mandos-client: "
354
"bad gpgme_data_new_from_mem: %s: %s\n",
355
gpgme_strsource(rc), gpgme_strerror(rc));
358
356
return -1;
359
357
}
360
358
361
359
/* Create new empty GPGME data buffer for the plaintext */
362
360
rc = gpgme_data_new(&dh_plain);
363
361
if(rc != GPG_ERR_NO_ERROR){
364
fprintf_plus(stderr, "Mandos plugin mandos-client: "
365
"bad gpgme_data_new: %s: %s\n",
366
gpgme_strsource(rc), gpgme_strerror(rc));
362
fprintf(stderr, "Mandos plugin mandos-client: "
363
"bad gpgme_data_new: %s: %s\n",
364
gpgme_strsource(rc), gpgme_strerror(rc));
367
365
gpgme_data_release(dh_crypto);
368
366
return -1;
369
367
}
372
370
data buffer */
373
371
rc = gpgme_op_decrypt(mc.ctx, dh_crypto, dh_plain);
374
372
if(rc != GPG_ERR_NO_ERROR){
375
fprintf_plus(stderr, "bad gpgme_op_decrypt: %s: %s\n",
376
gpgme_strsource(rc), gpgme_strerror(rc));
373
fprintf(stderr, "Mandos plugin mandos-client: "
374
"bad gpgme_op_decrypt: %s: %s\n",
375
gpgme_strsource(rc), gpgme_strerror(rc));
377
376
plaintext_length = -1;
378
377
if(debug){
379
378
gpgme_decrypt_result_t result;
380
379
result = gpgme_op_decrypt_result(mc.ctx);
381
380
if(result == NULL){
382
fprintf_plus(stderr, "gpgme_op_decrypt_result failed\n");
381
fprintf(stderr, "Mandos plugin mandos-client: "
382
"gpgme_op_decrypt_result failed\n");
383
383
} else {
384
fprintf_plus(stderr, "Unsupported algorithm: %s\n",
385
result->unsupported_algorithm);
386
fprintf_plus(stderr, "Wrong key usage: %u\n",
387
result->wrong_key_usage);
384
fprintf(stderr, "Mandos plugin mandos-client: "
385
"Unsupported algorithm: %s\n",
386
result->unsupported_algorithm);
387
fprintf(stderr, "Mandos plugin mandos-client: "
388
"Wrong key usage: %u\n",
389
result->wrong_key_usage);
388
390
if(result->file_name != NULL){
389
fprintf_plus(stderr, "File name: %s\n", result->file_name);
391
fprintf(stderr, "Mandos plugin mandos-client: "
392
"File name: %s\n", result->file_name);
390
393
}
391
394
gpgme_recipient_t recipient;
392
395
recipient = result->recipients;
393
396
while(recipient != NULL){
394
fprintf_plus(stderr, "Public key algorithm: %s\n",
395
gpgme_pubkey_algo_name
396
(recipient->pubkey_algo));
397
fprintf_plus(stderr, "Key ID: %s\n", recipient->keyid);
398
fprintf_plus(stderr, "Secret key available: %s\n",
399
recipient->status == GPG_ERR_NO_SECKEY
400
? "No" : "Yes");
397
fprintf(stderr, "Mandos plugin mandos-client: "
398
"Public key algorithm: %s\n",
399
gpgme_pubkey_algo_name(recipient->pubkey_algo));
400
fprintf(stderr, "Mandos plugin mandos-client: "
401
"Key ID: %s\n", recipient->keyid);
402
fprintf(stderr, "Mandos plugin mandos-client: "
403
"Secret key available: %s\n",
404
recipient->status == GPG_ERR_NO_SECKEY
405
? "No" : "Yes");
401
406
recipient = recipient->next;
402
407
}
403
408
}
406
411
}
407
412
408
413
if(debug){
409
fprintf_plus(stderr, "Decryption of OpenPGP data succeeded\n");
414
fprintf(stderr, "Mandos plugin mandos-client: "
415
"Decryption of OpenPGP data succeeded\n");
410
416
}
411
417
412
418
/* Seek back to the beginning of the GPGME plaintext data buffer */
443
449
}
444
450
445
451
if(debug){
446
fprintf_plus(stderr, "Decrypted password is: ");
452
fprintf(stderr, "Mandos plugin mandos-client: "
453
"Decrypted password is: ");
447
454
for(ssize_t i = 0; i < plaintext_length; i++){
448
455
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
449
456
}
471
478
/* GnuTLS log function callback */
472
479
static void debuggnutls(__attribute__((unused)) int level,
473
480
const char* string){
474
fprintf_plus(stderr, "GnuTLS: %s", string);
481
fprintf(stderr, "Mandos plugin mandos-client: GnuTLS: %s", string);
475
482
}
476
483
477
484
static int init_gnutls_global(const char *pubkeyfilename,
479
486
int ret;
480
487
481
488
if(debug){
482
fprintf_plus(stderr, "Initializing GnuTLS\n");
489
fprintf(stderr, "Mandos plugin mandos-client: "
490
"Initializing GnuTLS\n");
483
491
}
484
492
485
493
ret = gnutls_global_init();
486
494
if(ret != GNUTLS_E_SUCCESS){
487
fprintf_plus(stderr, "GnuTLS global_init: %s\n",
488
safer_gnutls_strerror(ret));
495
fprintf(stderr, "Mandos plugin mandos-client: "
496
"GnuTLS global_init: %s\n", safer_gnutls_strerror(ret));
489
497
return -1;
490
498
}
491
499
500
508
/* OpenPGP credentials */
501
509
ret = gnutls_certificate_allocate_credentials(&mc.cred);
502
510
if(ret != GNUTLS_E_SUCCESS){
503
fprintf_plus(stderr, "GnuTLS memory error: %s\n",
504
safer_gnutls_strerror(ret));
511
fprintf(stderr, "Mandos plugin mandos-client: "
512
"GnuTLS memory error: %s\n", safer_gnutls_strerror(ret));
505
513
gnutls_global_deinit();
506
514
return -1;
507
515
}
508
516
509
517
if(debug){
510
fprintf_plus(stderr, "Attempting to use OpenPGP public key %s and"
511
" secret key %s as GnuTLS credentials\n",
512
pubkeyfilename,
513
seckeyfilename);
518
fprintf(stderr, "Mandos plugin mandos-client: "
519
"Attempting to use OpenPGP public key %s and"
520
" secret key %s as GnuTLS credentials\n", pubkeyfilename,
521
seckeyfilename);
514
522
}
515
523
516
524
ret = gnutls_certificate_set_openpgp_key_file
517
525
(mc.cred, pubkeyfilename, seckeyfilename,
518
526
GNUTLS_OPENPGP_FMT_BASE64);
519
527
if(ret != GNUTLS_E_SUCCESS){
520
fprintf_plus(stderr,
521
"Error[%d] while reading the OpenPGP key pair ('%s',"
522
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
523
fprintf_plus(stderr, "The GnuTLS error is: %s\n",
524
safer_gnutls_strerror(ret));
528
fprintf(stderr,
529
"Mandos plugin mandos-client: "
530
"Error[%d] while reading the OpenPGP key pair ('%s',"
531
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
532
fprintf(stderr, "Mandos plugin mandos-client: "
533
"The GnuTLS error is: %s\n", safer_gnutls_strerror(ret));
525
534
goto globalfail;
526
535
}
527
536
528
537
/* GnuTLS server initialization */
529
538
ret = gnutls_dh_params_init(&mc.dh_params);
530
539
if(ret != GNUTLS_E_SUCCESS){
531
fprintf_plus(stderr, "Error in GnuTLS DH parameter"
532
" initialization: %s\n",
533
safer_gnutls_strerror(ret));
540
fprintf(stderr, "Mandos plugin mandos-client: "
541
"Error in GnuTLS DH parameter initialization:"
542
" %s\n", safer_gnutls_strerror(ret));
534
543
goto globalfail;
535
544
}
536
545
ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
537
546
if(ret != GNUTLS_E_SUCCESS){
538
fprintf_plus(stderr, "Error in GnuTLS prime generation: %s\n",
539
safer_gnutls_strerror(ret));
547
fprintf(stderr, "Mandos plugin mandos-client: "
548
"Error in GnuTLS prime generation: %s\n",
549
safer_gnutls_strerror(ret));
540
550
goto globalfail;
541
551
}
542
552
562
572
}
563
573
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
564
574
if(ret != GNUTLS_E_SUCCESS){
565
fprintf_plus(stderr,
566
"Error in GnuTLS session initialization: %s\n",
567
safer_gnutls_strerror(ret));
575
fprintf(stderr, "Mandos plugin mandos-client: "
576
"Error in GnuTLS session initialization: %s\n",
577
safer_gnutls_strerror(ret));
568
578
}
569
579
570
580
{
577
587
}
578
588
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
579
589
if(ret != GNUTLS_E_SUCCESS){
580
fprintf_plus(stderr, "Syntax error at: %s\n", err);
581
fprintf_plus(stderr, "GnuTLS error: %s\n",
582
safer_gnutls_strerror(ret));
590
fprintf(stderr, "Mandos plugin mandos-client: "
591
"Syntax error at: %s\n", err);
592
fprintf(stderr, "Mandos plugin mandos-client: "
593
"GnuTLS error: %s\n", safer_gnutls_strerror(ret));
583
594
gnutls_deinit(*session);
584
595
return -1;
585
596
}
594
605
}
595
606
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
596
607
if(ret != GNUTLS_E_SUCCESS){
597
fprintf_plus(stderr, "Error setting GnuTLS credentials: %s\n",
598
safer_gnutls_strerror(ret));
608
fprintf(stderr, "Mandos plugin mandos-client: "
609
"Error setting GnuTLS credentials: %s\n",
610
safer_gnutls_strerror(ret));
599
611
gnutls_deinit(*session);
600
612
return -1;
601
613
}
646
658
pf = PF_INET;
647
659
break;
648
660
default:
649
fprintf_plus(stderr, "Bad address family: %d\n", af);
661
fprintf(stderr, "Mandos plugin mandos-client: "
662
"Bad address family: %d\n", af);
650
663
errno = EINVAL;
651
664
return -1;
652
665
}
657
670
}
658
671
659
672
if(debug){
660
fprintf_plus(stderr, "Setting up a TCP connection to %s, port %"
661
PRIu16 "\n", ip, port);
673
fprintf(stderr, "Mandos plugin mandos-client: "
674
"Setting up a TCP connection to %s, port %" PRIu16
675
"\n", ip, port);
662
676
}
663
677
664
678
tcp_sd = socket(pf, SOCK_STREAM, 0);
690
704
}
691
705
if(ret == 0){
692
706
int e = errno;
693
fprintf_plus(stderr, "Bad address: %s\n", ip);
707
fprintf(stderr, "Mandos plugin mandos-client: "
708
"Bad address: %s\n", ip);
694
709
errno = e;
695
710
goto mandos_end;
696
711
}
703
718
(&to.in6.sin6_addr)){ /* -Wstrict-aliasing=2 or lower and
704
719
-Wunreachable-code*/
705
720
if(if_index == AVAHI_IF_UNSPEC){
706
fprintf_plus(stderr, "An IPv6 link-local address is"
707
" incomplete without a network interface\n");
721
fprintf(stderr, "Mandos plugin mandos-client: "
722
"An IPv6 link-local address is incomplete"
723
" without a network interface\n");
708
724
errno = EINVAL;
709
725
goto mandos_end;
710
726
}
728
744
if(if_indextoname((unsigned int)if_index, interface) == NULL){
729
745
perror_plus("if_indextoname");
730
746
} else {
731
fprintf_plus(stderr, "Connection to: %s%%%s, port %" PRIu16
732
"\n", ip, interface, port);
747
fprintf(stderr, "Mandos plugin mandos-client: "
748
"Connection to: %s%%%s, port %" PRIu16 "\n",
749
ip, interface, port);
733
750
}
734
751
} else {
735
fprintf_plus(stderr, "Connection to: %s, port %" PRIu16 "\n",
736
ip, port);
752
fprintf(stderr, "Mandos plugin mandos-client: "
753
"Connection to: %s, port %" PRIu16 "\n", ip, port);
737
754
}
738
755
char addrstr[(INET_ADDRSTRLEN > INET6_ADDRSTRLEN) ?
739
756
INET_ADDRSTRLEN : INET6_ADDRSTRLEN] = "";
749
766
perror_plus("inet_ntop");
750
767
} else {
751
768
if(strcmp(addrstr, ip) != 0){
752
fprintf_plus(stderr, "Canonical address form: %s\n", addrstr);
769
fprintf(stderr, "Mandos plugin mandos-client: "
770
"Canonical address form: %s\n", addrstr);
753
771
}
754
772
}
755
773
}
809
827
}
810
828
811
829
if(debug){
812
fprintf_plus(stderr, "Establishing TLS session with %s\n", ip);
830
fprintf(stderr, "Mandos plugin mandos-client: "
831
"Establishing TLS session with %s\n", ip);
813
832
}
814
833
815
834
if(quit_now){
835
854
836
855
if(ret != GNUTLS_E_SUCCESS){
837
856
if(debug){
838
fprintf_plus(stderr, "*** GnuTLS Handshake failed ***\n");
857
fprintf(stderr, "Mandos plugin mandos-client: "
858
"*** GnuTLS Handshake failed ***\n");
839
859
gnutls_perror(ret);
840
860
}
841
861
errno = EPROTO;
845
865
/* Read OpenPGP packet that contains the wanted password */
846
866
847
867
if(debug){
848
fprintf_plus(stderr, "Retrieving OpenPGP encrypted password from"
849
" %s\n", ip);
868
fprintf(stderr, "Mandos plugin mandos-client: "
869
"Retrieving OpenPGP encrypted password from %s\n", ip);
850
870
}
851
871
852
872
while(true){
890
910
}
891
911
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
892
912
if(ret < 0){
893
fprintf_plus(stderr, "*** GnuTLS Re-handshake failed "
894
"***\n");
913
fprintf(stderr, "Mandos plugin mandos-client: "
914
"*** GnuTLS Re-handshake failed ***\n");
895
915
gnutls_perror(ret);
896
916
errno = EPROTO;
897
917
goto mandos_end;
898
918
}
899
919
break;
900
920
default:
901
fprintf_plus(stderr, "Unknown error while reading data from"
902
" encrypted session with Mandos server\n");
921
fprintf(stderr, "Mandos plugin mandos-client: "
922
"Unknown error while reading data from"
923
" encrypted session with Mandos server\n");
903
924
gnutls_bye(session, GNUTLS_SHUT_RDWR);
904
925
errno = EIO;
905
926
goto mandos_end;
910
931
}
911
932
912
933
if(debug){
913
fprintf_plus(stderr, "Closing TLS session\n");
934
fprintf(stderr, "Mandos plugin mandos-client: "
935
"Closing TLS session\n");
914
936
}
915
937
916
938
if(quit_now){
945
967
if(ret == 0 and ferror(stdout)){
946
968
int e = errno;
947
969
if(debug){
948
fprintf_plus(stderr, "Error writing encrypted data: %s\n",
949
strerror(errno));
970
fprintf(stderr, "Mandos plugin mandos-client: "
971
"Error writing encrypted data: %s\n",
972
strerror(errno));
950
973
}
951
974
errno = e;
952
975
goto mandos_end;
1009
1032
switch(event){
1010
1033
default:
1011
1034
case AVAHI_RESOLVER_FAILURE:
1012
fprintf_plus(stderr, "(Avahi Resolver) Failed to resolve service "
1013
"'%s' of type '%s' in domain '%s': %s\n", name, type,
1014
domain,
1015
avahi_strerror(avahi_server_errno(mc.server)));
1035
fprintf(stderr, "Mandos plugin mandos-client: "
1036
"(Avahi Resolver) Failed to resolve service '%s'"
1037
" of type '%s' in domain '%s': %s\n", name, type, domain,
1038
avahi_strerror(avahi_server_errno(mc.server)));
1016
1039
break;
1017
1040
1018
1041
case AVAHI_RESOLVER_FOUND:
1020
1043
char ip[AVAHI_ADDRESS_STR_MAX];
1021
1044
avahi_address_snprint(ip, sizeof(ip), address);
1022
1045
if(debug){
1023
fprintf_plus(stderr, "Mandos server \"%s\" found on %s (%s, %"
1024
PRIdMAX ") on port %" PRIu16 "\n", name,
1025
host_name, ip, (intmax_t)interface, port);
1046
fprintf(stderr, "Mandos plugin mandos-client: "
1047
"Mandos server \"%s\" found on %s (%s, %"
1048
PRIdMAX ") on port %" PRIu16 "\n", name, host_name,
1049
ip, (intmax_t)interface, port);
1026
1050
}
1027
1051
int ret = start_mandos_communication(ip, port, interface,
1028
1052
avahi_proto_to_af(proto));
1060
1084
default:
1061
1085
case AVAHI_BROWSER_FAILURE:
1062
1086
1063
fprintf_plus(stderr, "(Avahi browser) %s\n",
1064
avahi_strerror(avahi_server_errno(mc.server)));
1087
fprintf(stderr, "Mandos plugin mandos-client: "
1088
"(Avahi browser) %s\n",
1089
avahi_strerror(avahi_server_errno(mc.server)));
1065
1090
avahi_simple_poll_quit(mc.simple_poll);
1066
1091
return;
1067
1092
1074
1099
if(avahi_s_service_resolver_new(mc.server, interface, protocol,
1075
1100
name, type, domain, protocol, 0,
1076
1101
resolve_callback, NULL) == NULL)
1077
fprintf_plus(stderr, "Avahi: Failed to resolve service '%s':"
1078
" %s\n", name,
1079
avahi_strerror(avahi_server_errno(mc.server)));
1102
fprintf(stderr, "Mandos plugin mandos-client: "
1103
"Avahi: Failed to resolve service '%s': %s\n",
1104
name, avahi_strerror(avahi_server_errno(mc.server)));
1080
1105
break;
1081
1106
1082
1107
case AVAHI_BROWSER_REMOVE:
1085
1110
case AVAHI_BROWSER_ALL_FOR_NOW:
1086
1111
case AVAHI_BROWSER_CACHE_EXHAUSTED:
1087
1112
if(debug){
1088
fprintf_plus(stderr, "No Mandos server found, still"
1089
" searching...\n");
1113
fprintf(stderr, "Mandos plugin mandos-client: "
1114
"No Mandos server found, still searching...\n");
1090
1115
}
1091
1116
break;
1092
1117
}
1131
1156
/* Reject the loopback device */
1132
1157
if(ifr->ifr_flags & IFF_LOOPBACK){
1133
1158
if(debug){
1134
fprintf_plus(stderr, "Rejecting loopback interface \"%s\"\n",
1135
ifname);
1159
fprintf(stderr, "Mandos plugin mandos-client: "
1160
"Rejecting loopback interface \"%s\"\n", ifname);
1136
1161
}
1137
1162
return false;
1138
1163
}
1139
1164
/* Accept point-to-point devices only if connect_to is specified */
1140
1165
if(connect_to != NULL and (ifr->ifr_flags & IFF_POINTOPOINT)){
1141
1166
if(debug){
1142
fprintf_plus(stderr, "Accepting point-to-point interface"
1143
" \"%s\"\n", ifname);
1167
fprintf(stderr, "Mandos plugin mandos-client: "
1168
"Accepting point-to-point interface \"%s\"\n", ifname);
1144
1169
}
1145
1170
return true;
1146
1171
}
1147
1172
/* Otherwise, reject non-broadcast-capable devices */
1148
1173
if(not (ifr->ifr_flags & IFF_BROADCAST)){
1149
1174
if(debug){
1150
fprintf_plus(stderr, "Rejecting non-broadcast interface"
1151
" \"%s\"\n", ifname);
1175
fprintf(stderr, "Mandos plugin mandos-client: "
1176
"Rejecting non-broadcast interface \"%s\"\n", ifname);
1152
1177
}
1153
1178
return false;
1154
1179
}
1155
1180
/* Reject non-ARP interfaces (including dummy interfaces) */
1156
1181
if(ifr->ifr_flags & IFF_NOARP){
1157
1182
if(debug){
1158
fprintf_plus(stderr, "Rejecting non-ARP interface \"%s\"\n",
1159
ifname);
1183
fprintf(stderr, "Mandos plugin mandos-client: "
1184
"Rejecting non-ARP interface \"%s\"\n", ifname);
1160
1185
}
1161
1186
return false;
1162
1187
}
1163
1188
1164
1189
/* Accept this device */
1165
1190
if(debug){
1166
fprintf_plus(stderr, "Interface \"%s\" is good\n", ifname);
1191
fprintf(stderr, "Mandos plugin mandos-client: "
1192
"Interface \"%s\" is good\n", ifname);
1167
1193
}
1168
1194
return true;
1169
1195
}
1181
1207
struct ifreq ifr;
1182
1208
if(not get_flags(if_entry->d_name, &ifr)){
1183
1209
if(debug){
1184
fprintf_plus(stderr, "Failed to get flags for interface "
1185
"\"%s\"\n", if_entry->d_name);
1210
fprintf(stderr, "Mandos plugin mandos-client: "
1211
"Failed to get flags for interface \"%s\"\n",
1212
if_entry->d_name);
1186
1213
}
1187
1214
return 0;
1188
1215
}
1206
1233
struct ifreq ifr;
1207
1234
if(not get_flags(if_entry->d_name, &ifr)){
1208
1235
if(debug){
1209
fprintf_plus(stderr, "Failed to get flags for interface "
1210
"\"%s\"\n", if_entry->d_name);
1236
fprintf(stderr, "Mandos plugin mandos-client: "
1237
"Failed to get flags for interface \"%s\"\n",
1238
if_entry->d_name);
1211
1239
}
1212
1240
return 0;
1213
1241
}
1215
1243
/* Reject down interfaces */
1216
1244
if(not (ifr.ifr_flags & IFF_UP)){
1217
1245
if(debug){
1218
fprintf_plus(stderr, "Rejecting down interface \"%s\"\n",
1219
if_entry->d_name);
1246
fprintf(stderr, "Mandos plugin mandos-client: "
1247
"Rejecting down interface \"%s\"\n",
1248
if_entry->d_name);
1220
1249
}
1221
1250
return 0;
1222
1251
}
1224
1253
/* Reject non-running interfaces */
1225
1254
if(not (ifr.ifr_flags & IFF_RUNNING)){
1226
1255
if(debug){
1227
fprintf_plus(stderr, "Rejecting non-running interface \"%s\"\n",
1228
if_entry->d_name);
1256
fprintf(stderr, "Mandos plugin mandos-client: "
1257
"Rejecting non-running interface \"%s\"\n",
1258
if_entry->d_name);
1229
1259
}
1230
1260
return 0;
1231
1261
}
1265
1295
if((direntry->d_name)[sret] != '\0'){
1266
1296
/* Contains non-allowed characters */
1267
1297
if(debug){
1268
fprintf_plus(stderr, "Ignoring hook \"%s\" with bad name\n",
1269
direntry->d_name);
1298
fprintf(stderr, "Mandos plugin mandos-client: "
1299
"Ignoring hook \"%s\" with bad name\n",
1300
direntry->d_name);
1270
1301
}
1271
1302
return 0;
1272
1303
}
1288
1319
if(not (S_ISREG(st.st_mode))){
1289
1320
/* Not a regular file */
1290
1321
if(debug){
1291
fprintf_plus(stderr, "Ignoring hook \"%s\" - not a file\n",
1292
direntry->d_name);
1322
fprintf(stderr, "Mandos plugin mandos-client: "
1323
"Ignoring hook \"%s\" - not a file\n",
1324
direntry->d_name);
1293
1325
}
1294
1326
return 0;
1295
1327
}
1296
1328
if(not (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))){
1297
1329
/* Not executable */
1298
1330
if(debug){
1299
fprintf_plus(stderr, "Ignoring hook \"%s\" - not executable\n",
1300
direntry->d_name);
1331
fprintf(stderr, "Mandos plugin mandos-client: "
1332
"Ignoring hook \"%s\" - not executable\n",
1333
direntry->d_name);
1301
1334
}
1302
1335
return 0;
1303
1336
}
1304
if(debug){
1305
fprintf_plus(stderr, "Hook \"%s\" is acceptable\n",
1306
direntry->d_name);
1307
}
1308
1337
return 1;
1309
1338
}
1310
1339
1317
1346
while(true){
1318
1347
if(mc.current_server == NULL){
1319
1348
if (debug){
1320
fprintf_plus(stderr, "Wait until first server is found."
1321
" No timeout!\n");
1349
fprintf(stderr, "Mandos plugin mandos-client: "
1350
"Wait until first server is found. No timeout!\n");
1322
1351
}
1323
1352
ret = avahi_simple_poll_iterate(s, -1);
1324
1353
} else {
1325
1354
if (debug){
1326
fprintf_plus(stderr, "Check current_server if we should run"
1327
" it, or wait\n");
1355
fprintf(stderr, "Mandos plugin mandos-client: "
1356
"Check current_server if we should run it,"
1357
" or wait\n");
1328
1358
}
1329
1359
/* the current time */
1330
1360
ret = clock_gettime(CLOCK_MONOTONIC, &now);
1346
1376
- ((intmax_t)waited_time.tv_nsec / 1000000));
1347
1377
1348
1378
if (debug){
1349
fprintf_plus(stderr, "Blocking for %" PRIdMAX " ms\n",
1350
block_time);
1379
fprintf(stderr, "Mandos plugin mandos-client: "
1380
"Blocking for %" PRIdMAX " ms\n", block_time);
1351
1381
}
1352
1382
1353
1383
if(block_time <= 0){
1380
1410
}
1381
1411
}
1382
1412
1383
bool run_network_hooks(const char *mode, const char *interface,
1384
const float delay){
1385
struct dirent **direntries;
1386
struct dirent *direntry;
1387
int ret;
1388
int numhooks = scandir(hookdir, &direntries, runnable_hook,
1389
alphasort);
1390
if(numhooks == -1){
1391
perror_plus("scandir");
1392
} else {
1393
int devnull = open("/dev/null", O_RDONLY);
1394
for(int i = 0; i < numhooks; i++){
1395
direntry = direntries[i];
1396
char *fullname = NULL;
1397
ret = asprintf(&fullname, "%s/%s", hookdir, direntry->d_name);
1398
if(ret < 0){
1399
perror_plus("asprintf");
1400
continue;
1401
}
1402
if(debug){
1403
fprintf_plus(stderr, "Running network hook \"%s\"\n",
1404
direntry->d_name);
1405
}
1406
pid_t hook_pid = fork();
1407
if(hook_pid == 0){
1408
/* Child */
1409
dup2(devnull, STDIN_FILENO);
1410
close(devnull);
1411
dup2(STDERR_FILENO, STDOUT_FILENO);
1412
ret = setenv("MANDOSNETHOOKDIR", hookdir, 1);
1413
if(ret == -1){
1414
perror_plus("setenv");
1415
return false;
1416
}
1417
ret = setenv("DEVICE", interface, 1);
1418
if(ret == -1){
1419
perror_plus("setenv");
1420
return false;
1421
}
1422
ret = setenv("VERBOSE", debug ? "1" : "0", 1);
1423
if(ret == -1){
1424
perror_plus("setenv");
1425
return false;
1426
}
1427
ret = setenv("MODE", mode, 1);
1428
if(ret == -1){
1429
perror_plus("setenv");
1430
return false;
1431
}
1432
char *delaystring;
1433
ret = asprintf(&delaystring, "%f", delay);
1434
if(ret == -1){
1435
perror_plus("asprintf");
1436
return false;
1437
}
1438
ret = setenv("DELAY", delaystring, 1);
1439
if(ret == -1){
1440
free(delaystring);
1441
perror_plus("setenv");
1442
return false;
1443
}
1444
free(delaystring);
1445
ret = execl(fullname, direntry->d_name, mode, NULL);
1446
perror_plus("execl");
1447
} else {
1448
int status;
1449
if(TEMP_FAILURE_RETRY(waitpid(hook_pid, &status, 0)) == -1){
1450
perror_plus("waitpid");
1451
free(fullname);
1452
continue;
1453
}
1454
if(WIFEXITED(status)){
1455
if(WEXITSTATUS(status) != 0){
1456
fprintf_plus(stderr, "Warning: network hook \"%s\" exited"
1457
" with status %d\n", direntry->d_name,
1458
WEXITSTATUS(status));
1459
free(fullname);
1460
continue;
1461
}
1462
} else if(WIFSIGNALED(status)){
1463
fprintf_plus(stderr, "Warning: network hook \"%s\" died by"
1464
" signal %d\n", direntry->d_name,
1465
WTERMSIG(status));
1466
free(fullname);
1467
continue;
1468
} else {
1469
fprintf_plus(stderr, "Warning: network hook \"%s\""
1470
" crashed\n", direntry->d_name);
1471
free(fullname);
1472
continue;
1473
}
1474
}
1475
free(fullname);
1476
if(debug){
1477
fprintf_plus(stderr, "Network hook \"%s\" ran successfully\n",
1478
direntry->d_name);
1479
}
1480
}
1481
close(devnull);
1482
}
1483
return true;
1484
}
1485
1486
1413
int main(int argc, char *argv[]){
1487
1414
AvahiSServiceBrowser *sb = NULL;
1488
1415
int error;
1646
1573
argp_state_help(state, state->out_stream,
1647
1574
ARGP_HELP_USAGE | ARGP_HELP_EXIT_ERR);
1648
1575
case 'V': /* --version */
1649
fprintf_plus(state->out_stream,
1650
"Mandos plugin mandos-client: ");
1651
fprintf_plus(state->out_stream, "%s\n", argp_program_version);
1576
fprintf(state->out_stream, "Mandos plugin mandos-client: ");
1577
fprintf(state->out_stream, "%s\n", argp_program_version);
1652
1578
exit(argp_err_exit_status);
1653
1579
break;
1654
1580
default:
1678
1604
}
1679
1605
}
1680
1606
1681
if(getuid() == 0){
1607
{
1682
1608
/* Work around Debian bug #633582:
1683
1609
<http://bugs.debian.org/633582> */
1684
1610
struct stat st;
1699
1625
if(ret == -1){
1700
1626
perror_plus("fstat");
1701
1627
} else {
1702
if(S_ISREG(st.st_mode)
1703
and st.st_uid == 0 and st.st_gid == 0){
1628
if(S_ISREG(st.st_mode) and st.st_uid == 0 and st.st_gid == 0){
1704
1629
ret = fchown(seckey_fd, uid, gid);
1705
1630
if(ret == -1){
1706
1631
perror_plus("fchown");
1720
1645
if(ret == -1){
1721
1646
perror_plus("fstat");
1722
1647
} else {
1723
if(S_ISREG(st.st_mode)
1724
and st.st_uid == 0 and st.st_gid == 0){
1648
if(S_ISREG(st.st_mode) and st.st_uid == 0 and st.st_gid == 0){
1725
1649
ret = fchown(pubkey_fd, uid, gid);
1726
1650
if(ret == -1){
1727
1651
perror_plus("fchown");
1740
1664
}
1741
1665
}
1742
1666
1743
/* Run network hooks */
1667
/* Find network hooks and run them */
1744
1668
{
1745
if(getuid() == 0){
1746
/* Re-raise priviliges */
1747
errno = 0;
1748
ret = seteuid(0);
1749
if(ret == -1){
1750
perror_plus("seteuid");
1751
}
1752
}
1753
if(not run_network_hooks("start", interface, delay)){
1754
goto end;
1755
}
1756
if(getuid() == 0){
1757
/* Lower privileges */
1758
errno = 0;
1759
ret = seteuid(uid);
1760
if(ret == -1){
1761
perror_plus("seteuid");
1762
}
1669
struct dirent **direntries;
1670
struct dirent *direntry;
1671
int numhooks = scandir(hookdir, &direntries, runnable_hook,
1672
alphasort);
1673
if(numhooks == -1){
1674
perror_plus("scandir");
1675
} else {
1676
int devnull = open("/dev/null", O_RDONLY);
1677
for(int i = 0; i < numhooks; i++){
1678
direntry = direntries[0];
1679
char *fullname = NULL;
1680
ret = asprintf(&fullname, "%s/%s", hookdir, direntry->d_name);
1681
if(ret < 0){
1682
perror_plus("asprintf");
1683
continue;
1684
}
1685
pid_t hook_pid = fork();
1686
if(hook_pid == 0){
1687
/* Child */
1688
dup2(devnull, STDIN_FILENO);
1689
close(devnull);
1690
dup2(STDERR_FILENO, STDOUT_FILENO);
1691
ret = setenv("MANDOSNETHOOKDIR", hookdir, 1);
1692
if(ret == -1){
1693
perror_plus("setenv");
1694
exit(1);
1695
}
1696
ret = setenv("DEVICE", interface, 1);
1697
if(ret == -1){
1698
perror_plus("setenv");
1699
exit(1);
1700
}
1701
ret = setenv("VERBOSE", debug ? "1" : "0", 1);
1702
if(ret == -1){
1703
perror_plus("setenv");
1704
exit(1);
1705
}
1706
ret = setenv("MODE", "start", 1);
1707
if(ret == -1){
1708
perror_plus("setenv");
1709
exit(1);
1710
}
1711
char *delaystring;
1712
ret = asprintf(&delaystring, "%f", delay);
1713
if(ret == -1){
1714
perror_plus("asprintf");
1715
exit(1);
1716
}
1717
ret = setenv("DELAY", delaystring, 1);
1718
if(ret == -1){
1719
free(delaystring);
1720
perror_plus("setenv");
1721
exit(1);
1722
}
1723
free(delaystring);
1724
ret = execl(fullname, direntry->d_name, "start", NULL);
1725
perror_plus("execl");
1726
} else {
1727
int status;
1728
if(TEMP_FAILURE_RETRY(waitpid(hook_pid, &status, 0)) == -1){
1729
perror_plus("waitpid");
1730
free(fullname);
1731
continue;
1732
}
1733
if(WIFEXITED(status)){
1734
if(WEXITSTATUS(status) != 0){
1735
fprintf(stderr, "Mandos plugin mandos-client: "
1736
"Warning: network hook \"%s\" exited"
1737
" with status %d\n", direntry->d_name,
1738
WEXITSTATUS(status));
1739
free(fullname);
1740
continue;
1741
}
1742
} else if(WIFSIGNALED(status)){
1743
fprintf(stderr, "Mandos plugin mandos-client: "
1744
"Warning: network hook \"%s\" died by"
1745
" signal %d\n", direntry->d_name,
1746
WTERMSIG(status));
1747
free(fullname);
1748
continue;
1749
} else {
1750
fprintf(stderr, "Mandos plugin mandos-client: "
1751
"Warning: network hook \"%s\" crashed\n",
1752
direntry->d_name);
1753
free(fullname);
1754
continue;
1755
}
1756
}
1757
free(fullname);
1758
if(quit_now){
1759
goto end;
1760
}
1761
}
1762
close(devnull);
1763
1763
}
1764
1764
}
1765
1765
1782
1782
/* Pick the first interface returned */
1783
1783
interface = strdup(direntries[0]->d_name);
1784
1784
if(debug){
1785
fprintf_plus(stderr, "Using interface \"%s\"\n", interface);
1785
fprintf(stderr, "Mandos plugin mandos-client: "
1786
"Using interface \"%s\"\n", interface);
1786
1787
}
1787
1788
if(interface == NULL){
1788
1789
perror_plus("malloc");
1793
1794
free(direntries);
1794
1795
} else {
1795
1796
free(direntries);
1796
fprintf_plus(stderr, "Could not find a network interface\n");
1797
fprintf(stderr, "Mandos plugin mandos-client: "
1798
"Could not find a network interface\n");
1797
1799
exitcode = EXIT_FAILURE;
1798
1800
goto end;
1799
1801
}
1805
1807
srand((unsigned int) time(NULL));
1806
1808
mc.simple_poll = avahi_simple_poll_new();
1807
1809
if(mc.simple_poll == NULL){
1808
fprintf_plus(stderr,
1809
"Avahi: Failed to create simple poll object.\n");
1810
fprintf(stderr, "Mandos plugin mandos-client: "
1811
"Avahi: Failed to create simple poll object.\n");
1810
1812
exitcode = EX_UNAVAILABLE;
1811
1813
goto end;
1812
1814
}
1878
1880
if(strcmp(interface, "none") != 0){
1879
1881
if_index = (AvahiIfIndex) if_nametoindex(interface);
1880
1882
if(if_index == 0){
1881
fprintf_plus(stderr, "No such interface: \"%s\"\n", interface);
1883
fprintf(stderr, "Mandos plugin mandos-client: "
1884
"No such interface: \"%s\"\n", interface);
1882
1885
exitcode = EX_UNAVAILABLE;
1883
1886
goto end;
1884
1887
}
2004
2007
#endif /* __linux__ */
2005
2008
/* Lower privileges */
2006
2009
errno = 0;
2007
/* Lower privileges */
2008
ret = seteuid(uid);
2009
if(ret == -1){
2010
perror_plus("seteuid");
2010
if(take_down_interface){
2011
/* Lower privileges */
2012
ret = seteuid(uid);
2013
if(ret == -1){
2014
perror_plus("seteuid");
2015
}
2016
} else {
2017
/* Lower privileges permanently */
2018
ret = setuid(uid);
2019
if(ret == -1){
2020
perror_plus("setuid");
2021
}
2011
2022
}
2012
2023
}
2013
2024
2017
2028
2018
2029
ret = init_gnutls_global(pubkey, seckey);
2019
2030
if(ret == -1){
2020
fprintf_plus(stderr, "init_gnutls_global failed\n");
2031
fprintf(stderr, "Mandos plugin mandos-client: "
2032
"init_gnutls_global failed\n");
2021
2033
exitcode = EX_UNAVAILABLE;
2022
2034
goto end;
2023
2035
} else {
2039
2051
}
2040
2052
2041
2053
if(not init_gpgme(pubkey, seckey, tempdir)){
2042
fprintf_plus(stderr, "init_gpgme failed\n");
2054
fprintf(stderr, "Mandos plugin mandos-client: "
2055
"init_gpgme failed\n");
2043
2056
exitcode = EX_UNAVAILABLE;
2044
2057
goto end;
2045
2058
} else {
2055
2068
/* (Mainly meant for debugging) */
2056
2069
char *address = strrchr(connect_to, ':');
2057
2070
if(address == NULL){
2058
fprintf_plus(stderr, "No colon in address\n");
2071
fprintf(stderr, "Mandos plugin mandos-client: "
2072
"No colon in address\n");
2059
2073
exitcode = EX_USAGE;
2060
2074
goto end;
2061
2075
}
2069
2083
tmpmax = strtoimax(address+1, &tmp, 10);
2070
2084
if(errno != 0 or tmp == address+1 or *tmp != '\0'
2071
2085
or tmpmax != (uint16_t)tmpmax){
2072
fprintf_plus(stderr, "Bad port number\n");
2086
fprintf(stderr, "Mandos plugin mandos-client: "
2087
"Bad port number\n");
2073
2088
exitcode = EX_USAGE;
2074
2089
goto end;
2075
2090
}
2105
2120
break;
2106
2121
}
2107
2122
if(debug){
2108
fprintf_plus(stderr, "Retrying in %d seconds\n",
2109
(int)retry_interval);
2123
fprintf(stderr, "Mandos plugin mandos-client: "
2124
"Retrying in %d seconds\n", (int)retry_interval);
2110
2125
}
2111
2126
sleep((int)retry_interval);
2112
2127
}
2142
2157
2143
2158
/* Check if creating the Avahi server object succeeded */
2144
2159
if(mc.server == NULL){
2145
fprintf_plus(stderr, "Failed to create Avahi server: %s\n",
2146
avahi_strerror(error));
2160
fprintf(stderr, "Mandos plugin mandos-client: "
2161
"Failed to create Avahi server: %s\n",
2162
avahi_strerror(error));
2147
2163
exitcode = EX_UNAVAILABLE;
2148
2164
goto end;
2149
2165
}
2157
2173
AVAHI_PROTO_UNSPEC, "_mandos._tcp",
2158
2174
NULL, 0, browse_callback, NULL);
2159
2175
if(sb == NULL){
2160
fprintf_plus(stderr, "Failed to create service browser: %s\n",
2161
avahi_strerror(avahi_server_errno(mc.server)));
2176
fprintf(stderr, "Mandos plugin mandos-client: "
2177
"Failed to create service browser: %s\n",
2178
avahi_strerror(avahi_server_errno(mc.server)));
2162
2179
exitcode = EX_UNAVAILABLE;
2163
2180
goto end;
2164
2181
}
2170
2187
/* Run the main loop */
2171
2188
2172
2189
if(debug){
2173
fprintf_plus(stderr, "Starting Avahi loop search\n");
2190
fprintf(stderr, "Mandos plugin mandos-client: "
2191
"Starting Avahi loop search\n");
2174
2192
}
2175
2193
2176
2194
ret = avahi_loop_with_timeout(mc.simple_poll,
2177
2195
(int)(retry_interval * 1000));
2178
2196
if(debug){
2179
fprintf_plus(stderr, "avahi_loop_with_timeout exited %s\n",
2180
(ret == 0) ? "successfully" : "with error");
2197
fprintf(stderr, "Mandos plugin mandos-client: "
2198
"avahi_loop_with_timeout exited %s\n",
2199
(ret == 0) ? "successfully" : "with error");
2181
2200
}
2182
2201
2183
2202
end:
2184
2203
2185
2204
if(debug){
2186
fprintf_plus(stderr, "%s exiting\n", argv[0]);
2205
fprintf(stderr, "Mandos plugin mandos-client: "
2206
"%s exiting\n", argv[0]);
2187
2207
}
2188
2208
2189
2209
/* Cleanup things */
2205
2225
if(gpgme_initialized){
2206
2226
gpgme_release(mc.ctx);
2207
2227
}
2208
2228
2209
2229
/* Cleans up the circular linked list of Mandos servers the client
2210
2230
has seen */
2211
2231
if(mc.current_server != NULL){
2217
2237
}
2218
2238
}
2219
2239
2220
/* Re-raise priviliges */
2221
{
2222
if(getuid() == 0){
2223
errno = 0;
2224
ret = seteuid(0);
2225
if(ret == -1){
2226
perror_plus("seteuid");
2227
}
2240
/* XXX run network hooks "stop" here */
2241
2242
/* Take down the network interface */
2243
if(take_down_interface){
2244
/* Re-raise priviliges */
2245
errno = 0;
2246
ret = seteuid(0);
2247
if(ret == -1){
2248
perror_plus("seteuid");
2228
2249
}
2229
2230
/* Run network hooks */
2231
run_network_hooks("stop", interface, delay);
2232
2233
/* Take down the network interface */
2234
if(take_down_interface and geteuid() == 0){
2250
if(geteuid() == 0){
2235
2251
ret = ioctl(sd, SIOCGIFFLAGS, &network);
2236
2252
if(ret == -1){
2237
2253
perror_plus("ioctl SIOCGIFFLAGS");
2246
2262
if(ret == -1){
2247
2263
perror_plus("close");
2248
2264
}
2249
}
2250
}
2251
if(getuid() == 0){
2252
/* Lower privileges permanently */
2253
errno = 0;
2254
ret = setuid(uid);
2255
if(ret == -1){
2256
perror_plus("setuid");
2265
/* Lower privileges permanently */
2266
errno = 0;
2267
ret = setuid(uid);
2268
if(ret == -1){
2269
perror_plus("setuid");
2270
}
2257
2271
}
2258
2272
}
2259
2273
2275
2289
}
2276
2290
ret = remove(fullname);
2277
2291
if(ret == -1){
2278
fprintf_plus(stderr, "remove(\"%s\"): %s\n", fullname,
2279
strerror(errno));
2292
fprintf(stderr, "Mandos plugin mandos-client: "
2293
"remove(\"%s\"): %s\n", fullname, strerror(errno));
2280
2294
}
2281
2295
free(fullname);
2282
2296
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0