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- Committer: Björn Påhlsson
- Date: 2011-11-14 18:32:54 UTC
- mfrom: (237.16.7 client-network-hooks)
- mto: (237.16.9 client-network-hooks)
- mto: This revision was merged to the branch mainline in revision 290.
- Revision ID: belorn@fukt.bsnet.se-20111114183254-ujkmu680jli1w3yd
merge
- files modified:
- TODO
added
removed
plugins.d/mandos-client.c
53
53
sockaddr_in6, PF_INET6,
54
54
SOCK_STREAM, uid_t, gid_t, open(),
55
55
opendir(), DIR */
56
#include <sys/stat.h> /* open() */
56
#include <sys/stat.h> /* open(), S_ISREG */
57
57
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
58
58
inet_pton(), connect() */
59
59
#include <fcntl.h> /* open() */
85
85
raise() */
86
86
#include <sysexits.h> /* EX_OSERR, EX_USAGE, EX_UNAVAILABLE,
87
87
EX_NOHOST, EX_IOERR, EX_PROTOCOL */
88
#include <sys/wait.h> /* waitpid(), WIFEXITED(),
89
WEXITSTATUS(), WTERMSIG() */
88
90
89
91
#ifdef __linux__
90
92
#include <sys/klog.h> /* klogctl() */
108
110
init_gnutls_session(),
109
111
GNUTLS_* */
110
112
#include <gnutls/openpgp.h>
111
/* gnutls_certificate_set_openpgp_key_file(),
112
GNUTLS_OPENPGP_FMT_BASE64 */
113
/* gnutls_certificate_set_openpgp_key_file(),
114
GNUTLS_OPENPGP_FMT_BASE64 */
113
115
114
116
/* GPGME */
115
117
#include <gpgme.h> /* All GPGME types, constants and
131
133
const char *argp_program_bug_address = "<mandos@recompile.se>";
132
134
static const char sys_class_net[] = "/sys/class/net";
133
135
char *connect_to = NULL;
136
const char *hookdir = HOOKDIR;
134
137
135
138
/* Doubly linked list that need to be circularly linked when used */
136
139
typedef struct server{
185
188
* "buffer_length" is how much is already used.
186
189
*/
187
190
size_t incbuffer(char **buffer, size_t buffer_length,
188
size_t buffer_capacity){
191
size_t buffer_capacity){
189
192
if(buffer_length + BUFFER_SIZE > buffer_capacity){
190
193
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
191
194
if(buffer == NULL){
197
200
}
198
201
199
202
/* Add server to set of servers to retry periodically */
200
int add_server(const char *ip, uint16_t port,
201
AvahiIfIndex if_index,
202
int af){
203
int add_server(const char *ip, uint16_t port, AvahiIfIndex if_index,
204
int af){
203
205
int ret;
204
206
server *new_server = malloc(sizeof(server));
205
207
if(new_server == NULL){
207
209
return -1;
208
210
}
209
211
*new_server = (server){ .ip = strdup(ip),
210
.port = port,
211
.if_index = if_index,
212
.af = af };
212
.port = port,
213
.if_index = if_index,
214
.af = af };
213
215
if(new_server->ip == NULL){
214
216
perror_plus("strdup");
215
217
return -1;
237
239
/*
238
240
* Initialize GPGME.
239
241
*/
240
static bool init_gpgme(const char *seckey,
241
const char *pubkey, const char *tempdir){
242
static bool init_gpgme(const char *seckey, const char *pubkey,
243
const char *tempdir){
242
244
gpgme_error_t rc;
243
245
gpgme_engine_info_t engine_info;
244
246
259
261
260
262
rc = gpgme_data_new_from_fd(&pgp_data, fd);
261
263
if(rc != GPG_ERR_NO_ERROR){
262
fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
264
fprintf(stderr, "Mandos plugin mandos-client: "
265
"bad gpgme_data_new_from_fd: %s: %s\n",
263
266
gpgme_strsource(rc), gpgme_strerror(rc));
264
267
return false;
265
268
}
266
269
267
270
rc = gpgme_op_import(mc.ctx, pgp_data);
268
271
if(rc != GPG_ERR_NO_ERROR){
269
fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
272
fprintf(stderr, "Mandos plugin mandos-client: "
273
"bad gpgme_op_import: %s: %s\n",
270
274
gpgme_strsource(rc), gpgme_strerror(rc));
271
275
return false;
272
276
}
280
284
}
281
285
282
286
if(debug){
283
fprintf(stderr, "Initializing GPGME\n");
287
fprintf(stderr, "Mandos plugin mandos-client: "
288
"Initializing GPGME\n");
284
289
}
285
290
286
291
/* Init GPGME */
287
292
gpgme_check_version(NULL);
288
293
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
289
294
if(rc != GPG_ERR_NO_ERROR){
290
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
295
fprintf(stderr, "Mandos plugin mandos-client: "
296
"bad gpgme_engine_check_version: %s: %s\n",
291
297
gpgme_strsource(rc), gpgme_strerror(rc));
292
298
return false;
293
299
}
295
301
/* Set GPGME home directory for the OpenPGP engine only */
296
302
rc = gpgme_get_engine_info(&engine_info);
297
303
if(rc != GPG_ERR_NO_ERROR){
298
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
304
fprintf(stderr, "Mandos plugin mandos-client: "
305
"bad gpgme_get_engine_info: %s: %s\n",
299
306
gpgme_strsource(rc), gpgme_strerror(rc));
300
307
return false;
301
308
}
308
315
engine_info = engine_info->next;
309
316
}
310
317
if(engine_info == NULL){
311
fprintf(stderr, "Could not set GPGME home dir to %s\n", tempdir);
318
fprintf(stderr, "Mandos plugin mandos-client: "
319
"Could not set GPGME home dir to %s\n", tempdir);
312
320
return false;
313
321
}
314
322
315
323
/* Create new GPGME "context" */
316
324
rc = gpgme_new(&(mc.ctx));
317
325
if(rc != GPG_ERR_NO_ERROR){
318
fprintf(stderr, "bad gpgme_new: %s: %s\n",
319
gpgme_strsource(rc), gpgme_strerror(rc));
326
fprintf(stderr, "Mandos plugin mandos-client: "
327
"bad gpgme_new: %s: %s\n", gpgme_strsource(rc),
328
gpgme_strerror(rc));
320
329
return false;
321
330
}
322
331
341
350
ssize_t plaintext_length = 0;
342
351
343
352
if(debug){
344
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
353
fprintf(stderr, "Mandos plugin mandos-client: "
354
"Trying to decrypt OpenPGP data\n");
345
355
}
346
356
347
357
/* Create new GPGME data buffer from memory cryptotext */
348
358
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
349
359
0);
350
360
if(rc != GPG_ERR_NO_ERROR){
351
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
361
fprintf(stderr, "Mandos plugin mandos-client: "
362
"bad gpgme_data_new_from_mem: %s: %s\n",
352
363
gpgme_strsource(rc), gpgme_strerror(rc));
353
364
return -1;
354
365
}
356
367
/* Create new empty GPGME data buffer for the plaintext */
357
368
rc = gpgme_data_new(&dh_plain);
358
369
if(rc != GPG_ERR_NO_ERROR){
359
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
370
fprintf(stderr, "Mandos plugin mandos-client: "
371
"bad gpgme_data_new: %s: %s\n",
360
372
gpgme_strsource(rc), gpgme_strerror(rc));
361
373
gpgme_data_release(dh_crypto);
362
374
return -1;
366
378
data buffer */
367
379
rc = gpgme_op_decrypt(mc.ctx, dh_crypto, dh_plain);
368
380
if(rc != GPG_ERR_NO_ERROR){
369
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
381
fprintf(stderr, "Mandos plugin mandos-client: "
382
"bad gpgme_op_decrypt: %s: %s\n",
370
383
gpgme_strsource(rc), gpgme_strerror(rc));
371
384
plaintext_length = -1;
372
385
if(debug){
373
386
gpgme_decrypt_result_t result;
374
387
result = gpgme_op_decrypt_result(mc.ctx);
375
388
if(result == NULL){
376
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
389
fprintf(stderr, "Mandos plugin mandos-client: "
390
"gpgme_op_decrypt_result failed\n");
377
391
} else {
378
fprintf(stderr, "Unsupported algorithm: %s\n",
392
fprintf(stderr, "Mandos plugin mandos-client: "
393
"Unsupported algorithm: %s\n",
379
394
result->unsupported_algorithm);
380
fprintf(stderr, "Wrong key usage: %u\n",
395
fprintf(stderr, "Mandos plugin mandos-client: "
396
"Wrong key usage: %u\n",
381
397
result->wrong_key_usage);
382
398
if(result->file_name != NULL){
383
fprintf(stderr, "File name: %s\n", result->file_name);
399
fprintf(stderr, "Mandos plugin mandos-client: "
400
"File name: %s\n", result->file_name);
384
401
}
385
402
gpgme_recipient_t recipient;
386
403
recipient = result->recipients;
387
404
while(recipient != NULL){
388
fprintf(stderr, "Public key algorithm: %s\n",
405
fprintf(stderr, "Mandos plugin mandos-client: "
406
"Public key algorithm: %s\n",
389
407
gpgme_pubkey_algo_name(recipient->pubkey_algo));
390
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
391
fprintf(stderr, "Secret key available: %s\n",
408
fprintf(stderr, "Mandos plugin mandos-client: "
409
"Key ID: %s\n", recipient->keyid);
410
fprintf(stderr, "Mandos plugin mandos-client: "
411
"Secret key available: %s\n",
392
412
recipient->status == GPG_ERR_NO_SECKEY
393
413
? "No" : "Yes");
394
414
recipient = recipient->next;
399
419
}
400
420
401
421
if(debug){
402
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
422
fprintf(stderr, "Mandos plugin mandos-client: "
423
"Decryption of OpenPGP data succeeded\n");
403
424
}
404
425
405
426
/* Seek back to the beginning of the GPGME plaintext data buffer */
412
433
*plaintext = NULL;
413
434
while(true){
414
435
plaintext_capacity = incbuffer(plaintext,
415
(size_t)plaintext_length,
416
plaintext_capacity);
436
(size_t)plaintext_length,
437
plaintext_capacity);
417
438
if(plaintext_capacity == 0){
418
perror_plus("incbuffer");
419
plaintext_length = -1;
420
goto decrypt_end;
439
perror_plus("incbuffer");
440
plaintext_length = -1;
441
goto decrypt_end;
421
442
}
422
443
423
444
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
436
457
}
437
458
438
459
if(debug){
439
fprintf(stderr, "Decrypted password is: ");
460
fprintf(stderr, "Mandos plugin mandos-client: "
461
"Decrypted password is: ");
440
462
for(ssize_t i = 0; i < plaintext_length; i++){
441
463
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
442
464
}
464
486
/* GnuTLS log function callback */
465
487
static void debuggnutls(__attribute__((unused)) int level,
466
488
const char* string){
467
fprintf(stderr, "GnuTLS: %s", string);
489
fprintf(stderr, "Mandos plugin mandos-client: GnuTLS: %s", string);
468
490
}
469
491
470
492
static int init_gnutls_global(const char *pubkeyfilename,
472
494
int ret;
473
495
474
496
if(debug){
475
fprintf(stderr, "Initializing GnuTLS\n");
497
fprintf(stderr, "Mandos plugin mandos-client: "
498
"Initializing GnuTLS\n");
476
499
}
477
500
478
501
ret = gnutls_global_init();
479
502
if(ret != GNUTLS_E_SUCCESS){
480
fprintf(stderr, "GnuTLS global_init: %s\n",
481
safer_gnutls_strerror(ret));
503
fprintf(stderr, "Mandos plugin mandos-client: "
504
"GnuTLS global_init: %s\n", safer_gnutls_strerror(ret));
482
505
return -1;
483
506
}
484
507
493
516
/* OpenPGP credentials */
494
517
ret = gnutls_certificate_allocate_credentials(&mc.cred);
495
518
if(ret != GNUTLS_E_SUCCESS){
496
fprintf(stderr, "GnuTLS memory error: %s\n",
497
safer_gnutls_strerror(ret));
519
fprintf(stderr, "Mandos plugin mandos-client: "
520
"GnuTLS memory error: %s\n", safer_gnutls_strerror(ret));
498
521
gnutls_global_deinit();
499
522
return -1;
500
523
}
501
524
502
525
if(debug){
503
fprintf(stderr, "Attempting to use OpenPGP public key %s and"
526
fprintf(stderr, "Mandos plugin mandos-client: "
527
"Attempting to use OpenPGP public key %s and"
504
528
" secret key %s as GnuTLS credentials\n", pubkeyfilename,
505
529
seckeyfilename);
506
530
}
510
534
GNUTLS_OPENPGP_FMT_BASE64);
511
535
if(ret != GNUTLS_E_SUCCESS){
512
536
fprintf(stderr,
537
"Mandos plugin mandos-client: "
513
538
"Error[%d] while reading the OpenPGP key pair ('%s',"
514
539
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
515
fprintf(stderr, "The GnuTLS error is: %s\n",
516
safer_gnutls_strerror(ret));
540
fprintf(stderr, "Mandos plugin mandos-client: "
541
"The GnuTLS error is: %s\n", safer_gnutls_strerror(ret));
517
542
goto globalfail;
518
543
}
519
544
520
545
/* GnuTLS server initialization */
521
546
ret = gnutls_dh_params_init(&mc.dh_params);
522
547
if(ret != GNUTLS_E_SUCCESS){
523
fprintf(stderr, "Error in GnuTLS DH parameter initialization:"
548
fprintf(stderr, "Mandos plugin mandos-client: "
549
"Error in GnuTLS DH parameter initialization:"
524
550
" %s\n", safer_gnutls_strerror(ret));
525
551
goto globalfail;
526
552
}
527
553
ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
528
554
if(ret != GNUTLS_E_SUCCESS){
529
fprintf(stderr, "Error in GnuTLS prime generation: %s\n",
555
fprintf(stderr, "Mandos plugin mandos-client: "
556
"Error in GnuTLS prime generation: %s\n",
530
557
safer_gnutls_strerror(ret));
531
558
goto globalfail;
532
559
}
553
580
}
554
581
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
555
582
if(ret != GNUTLS_E_SUCCESS){
556
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
583
fprintf(stderr, "Mandos plugin mandos-client: "
584
"Error in GnuTLS session initialization: %s\n",
557
585
safer_gnutls_strerror(ret));
558
586
}
559
587
567
595
}
568
596
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
569
597
if(ret != GNUTLS_E_SUCCESS){
570
fprintf(stderr, "Syntax error at: %s\n", err);
571
fprintf(stderr, "GnuTLS error: %s\n",
572
safer_gnutls_strerror(ret));
598
fprintf(stderr, "Mandos plugin mandos-client: "
599
"Syntax error at: %s\n", err);
600
fprintf(stderr, "Mandos plugin mandos-client: "
601
"GnuTLS error: %s\n", safer_gnutls_strerror(ret));
573
602
gnutls_deinit(*session);
574
603
return -1;
575
604
}
584
613
}
585
614
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
586
615
if(ret != GNUTLS_E_SUCCESS){
587
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
616
fprintf(stderr, "Mandos plugin mandos-client: "
617
"Error setting GnuTLS credentials: %s\n",
588
618
safer_gnutls_strerror(ret));
589
619
gnutls_deinit(*session);
590
620
return -1;
636
666
pf = PF_INET;
637
667
break;
638
668
default:
639
fprintf(stderr, "Bad address family: %d\n", af);
669
fprintf(stderr, "Mandos plugin mandos-client: "
670
"Bad address family: %d\n", af);
640
671
errno = EINVAL;
641
672
return -1;
642
673
}
647
678
}
648
679
649
680
if(debug){
650
fprintf(stderr, "Setting up a TCP connection to %s, port %" PRIu16
681
fprintf(stderr, "Mandos plugin mandos-client: "
682
"Setting up a TCP connection to %s, port %" PRIu16
651
683
"\n", ip, port);
652
684
}
653
685
680
712
}
681
713
if(ret == 0){
682
714
int e = errno;
683
fprintf(stderr, "Bad address: %s\n", ip);
715
fprintf(stderr, "Mandos plugin mandos-client: "
716
"Bad address: %s\n", ip);
684
717
errno = e;
685
718
goto mandos_end;
686
719
}
691
724
692
725
if(IN6_IS_ADDR_LINKLOCAL /* Spurious warnings from */
693
726
(&to.in6.sin6_addr)){ /* -Wstrict-aliasing=2 or lower and
694
-Wunreachable-code*/
727
-Wunreachable-code*/
695
728
if(if_index == AVAHI_IF_UNSPEC){
696
fprintf(stderr, "An IPv6 link-local address is incomplete"
729
fprintf(stderr, "Mandos plugin mandos-client: "
730
"An IPv6 link-local address is incomplete"
697
731
" without a network interface\n");
698
732
errno = EINVAL;
699
733
goto mandos_end;
718
752
if(if_indextoname((unsigned int)if_index, interface) == NULL){
719
753
perror_plus("if_indextoname");
720
754
} else {
721
fprintf(stderr, "Connection to: %s%%%s, port %" PRIu16 "\n",
755
fprintf(stderr, "Mandos plugin mandos-client: "
756
"Connection to: %s%%%s, port %" PRIu16 "\n",
722
757
ip, interface, port);
723
758
}
724
759
} else {
725
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
726
port);
760
fprintf(stderr, "Mandos plugin mandos-client: "
761
"Connection to: %s, port %" PRIu16 "\n", ip, port);
727
762
}
728
763
char addrstr[(INET_ADDRSTRLEN > INET6_ADDRSTRLEN) ?
729
764
INET_ADDRSTRLEN : INET6_ADDRSTRLEN] = "";
739
774
perror_plus("inet_ntop");
740
775
} else {
741
776
if(strcmp(addrstr, ip) != 0){
742
fprintf(stderr, "Canonical address form: %s\n", addrstr);
777
fprintf(stderr, "Mandos plugin mandos-client: "
778
"Canonical address form: %s\n", addrstr);
743
779
}
744
780
}
745
781
}
773
809
while(true){
774
810
size_t out_size = strlen(out);
775
811
ret = (int)TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
776
out_size - written));
812
out_size - written));
777
813
if(ret == -1){
778
814
int e = errno;
779
815
perror_plus("write");
799
835
}
800
836
801
837
if(debug){
802
fprintf(stderr, "Establishing TLS session with %s\n", ip);
838
fprintf(stderr, "Mandos plugin mandos-client: "
839
"Establishing TLS session with %s\n", ip);
803
840
}
804
841
805
842
if(quit_now){
825
862
826
863
if(ret != GNUTLS_E_SUCCESS){
827
864
if(debug){
828
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
865
fprintf(stderr, "Mandos plugin mandos-client: "
866
"*** GnuTLS Handshake failed ***\n");
829
867
gnutls_perror(ret);
830
868
}
831
869
errno = EPROTO;
835
873
/* Read OpenPGP packet that contains the wanted password */
836
874
837
875
if(debug){
838
fprintf(stderr, "Retrieving OpenPGP encrypted password from %s\n",
839
ip);
876
fprintf(stderr, "Mandos plugin mandos-client: "
877
"Retrieving OpenPGP encrypted password from %s\n", ip);
840
878
}
841
879
842
880
while(true){
847
885
}
848
886
849
887
buffer_capacity = incbuffer(&buffer, buffer_length,
850
buffer_capacity);
888
buffer_capacity);
851
889
if(buffer_capacity == 0){
852
890
int e = errno;
853
891
perror_plus("incbuffer");
880
918
}
881
919
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
882
920
if(ret < 0){
883
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
921
fprintf(stderr, "Mandos plugin mandos-client: "
922
"*** GnuTLS Re-handshake failed ***\n");
884
923
gnutls_perror(ret);
885
924
errno = EPROTO;
886
925
goto mandos_end;
887
926
}
888
927
break;
889
928
default:
890
fprintf(stderr, "Unknown error while reading data from"
929
fprintf(stderr, "Mandos plugin mandos-client: "
930
"Unknown error while reading data from"
891
931
" encrypted session with Mandos server\n");
892
932
gnutls_bye(session, GNUTLS_SHUT_RDWR);
893
933
errno = EIO;
899
939
}
900
940
901
941
if(debug){
902
fprintf(stderr, "Closing TLS session\n");
942
fprintf(stderr, "Mandos plugin mandos-client: "
943
"Closing TLS session\n");
903
944
}
904
945
905
946
if(quit_now){
917
958
918
959
if(buffer_length > 0){
919
960
ssize_t decrypted_buffer_size;
920
decrypted_buffer_size = pgp_packet_decrypt(buffer,
921
buffer_length,
961
decrypted_buffer_size = pgp_packet_decrypt(buffer, buffer_length,
922
962
&decrypted_buffer);
923
963
if(decrypted_buffer_size >= 0){
924
964
935
975
if(ret == 0 and ferror(stdout)){
936
976
int e = errno;
937
977
if(debug){
938
fprintf(stderr, "Error writing encrypted data: %s\n",
978
fprintf(stderr, "Mandos plugin mandos-client: "
979
"Error writing encrypted data: %s\n",
939
980
strerror(errno));
940
981
}
941
982
errno = e;
999
1040
switch(event){
1000
1041
default:
1001
1042
case AVAHI_RESOLVER_FAILURE:
1002
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
1043
fprintf(stderr, "Mandos plugin mandos-client: "
1044
"(Avahi Resolver) Failed to resolve service '%s'"
1003
1045
" of type '%s' in domain '%s': %s\n", name, type, domain,
1004
1046
avahi_strerror(avahi_server_errno(mc.server)));
1005
1047
break;
1009
1051
char ip[AVAHI_ADDRESS_STR_MAX];
1010
1052
avahi_address_snprint(ip, sizeof(ip), address);
1011
1053
if(debug){
1012
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
1054
fprintf(stderr, "Mandos plugin mandos-client: "
1055
"Mandos server \"%s\" found on %s (%s, %"
1013
1056
PRIdMAX ") on port %" PRIu16 "\n", name, host_name,
1014
1057
ip, (intmax_t)interface, port);
1015
1058
}
1049
1092
default:
1050
1093
case AVAHI_BROWSER_FAILURE:
1051
1094
1052
fprintf(stderr, "(Avahi browser) %s\n",
1095
fprintf(stderr, "Mandos plugin mandos-client: "
1096
"(Avahi browser) %s\n",
1053
1097
avahi_strerror(avahi_server_errno(mc.server)));
1054
1098
avahi_simple_poll_quit(mc.simple_poll);
1055
1099
return;
1063
1107
if(avahi_s_service_resolver_new(mc.server, interface, protocol,
1064
1108
name, type, domain, protocol, 0,
1065
1109
resolve_callback, NULL) == NULL)
1066
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
1110
fprintf(stderr, "Mandos plugin mandos-client: "
1111
"Avahi: Failed to resolve service '%s': %s\n",
1067
1112
name, avahi_strerror(avahi_server_errno(mc.server)));
1068
1113
break;
1069
1114
1073
1118
case AVAHI_BROWSER_ALL_FOR_NOW:
1074
1119
case AVAHI_BROWSER_CACHE_EXHAUSTED:
1075
1120
if(debug){
1076
fprintf(stderr, "No Mandos server found, still searching...\n");
1121
fprintf(stderr, "Mandos plugin mandos-client: "
1122
"No Mandos server found, still searching...\n");
1077
1123
}
1078
1124
break;
1079
1125
}
1118
1164
/* Reject the loopback device */
1119
1165
if(ifr->ifr_flags & IFF_LOOPBACK){
1120
1166
if(debug){
1121
fprintf(stderr, "Rejecting loopback interface \"%s\"\n",
1122
ifname);
1167
fprintf(stderr, "Mandos plugin mandos-client: "
1168
"Rejecting loopback interface \"%s\"\n", ifname);
1123
1169
}
1124
1170
return false;
1125
1171
}
1126
1172
/* Accept point-to-point devices only if connect_to is specified */
1127
1173
if(connect_to != NULL and (ifr->ifr_flags & IFF_POINTOPOINT)){
1128
1174
if(debug){
1129
fprintf(stderr, "Accepting point-to-point interface \"%s\"\n",
1130
ifname);
1175
fprintf(stderr, "Mandos plugin mandos-client: "
1176
"Accepting point-to-point interface \"%s\"\n", ifname);
1131
1177
}
1132
1178
return true;
1133
1179
}
1134
1180
/* Otherwise, reject non-broadcast-capable devices */
1135
1181
if(not (ifr->ifr_flags & IFF_BROADCAST)){
1136
1182
if(debug){
1137
fprintf(stderr, "Rejecting non-broadcast interface \"%s\"\n",
1138
ifname);
1183
fprintf(stderr, "Mandos plugin mandos-client: "
1184
"Rejecting non-broadcast interface \"%s\"\n", ifname);
1139
1185
}
1140
1186
return false;
1141
1187
}
1142
1188
/* Reject non-ARP interfaces (including dummy interfaces) */
1143
1189
if(ifr->ifr_flags & IFF_NOARP){
1144
1190
if(debug){
1145
fprintf(stderr, "Rejecting non-ARP interface \"%s\"\n", ifname);
1191
fprintf(stderr, "Mandos plugin mandos-client: "
1192
"Rejecting non-ARP interface \"%s\"\n", ifname);
1146
1193
}
1147
1194
return false;
1148
1195
}
1149
1196
1150
1197
/* Accept this device */
1151
1198
if(debug){
1152
fprintf(stderr, "Interface \"%s\" is good\n", ifname);
1199
fprintf(stderr, "Mandos plugin mandos-client: "
1200
"Interface \"%s\" is good\n", ifname);
1153
1201
}
1154
1202
return true;
1155
1203
}
1160
1208
* (This function is passed to scandir(3) as a filter function.)
1161
1209
*/
1162
1210
int good_interface(const struct dirent *if_entry){
1163
int ret;
1164
1211
if(if_entry->d_name[0] == '.'){
1165
1212
return 0;
1166
1213
}
1214
1167
1215
struct ifreq ifr;
1168
1169
1216
if(not get_flags(if_entry->d_name, &ifr)){
1217
if(debug){
1218
fprintf(stderr, "Mandos plugin mandos-client: "
1219
"Failed to get flags for interface \"%s\"\n",
1220
if_entry->d_name);
1221
}
1170
1222
return 0;
1171
1223
}
1172
1224
1182
1234
* (This function is passed to scandir(3) as a filter function.)
1183
1235
*/
1184
1236
int up_interface(const struct dirent *if_entry){
1185
ssize_t ssret;
1186
char *flagname = NULL;
1187
1237
if(if_entry->d_name[0] == '.'){
1188
1238
return 0;
1189
1239
}
1190
int ret = asprintf(&flagname, "%s/%s/flags", sys_class_net,
1191
if_entry->d_name);
1192
if(ret < 0){
1193
perror_plus("asprintf");
1194
return 0;
1195
}
1196
int flags_fd = (int)TEMP_FAILURE_RETRY(open(flagname, O_RDONLY));
1197
if(flags_fd == -1){
1198
perror_plus("open");
1199
free(flagname);
1200
return 0;
1201
}
1202
free(flagname);
1203
typedef short ifreq_flags; /* ifreq.ifr_flags in netdevice(7) */
1204
/* read line from flags_fd */
1205
ssize_t to_read = 2+(sizeof(ifreq_flags)*2)+1; /* "0x1003\n" */
1206
char *flagstring = malloc((size_t)to_read+1); /* +1 for final \0 */
1207
flagstring[(size_t)to_read] = '\0';
1208
if(flagstring == NULL){
1209
perror_plus("malloc");
1210
close(flags_fd);
1211
return 0;
1212
}
1213
while(to_read > 0){
1214
ssret = (ssize_t)TEMP_FAILURE_RETRY(read(flags_fd, flagstring,
1215
(size_t)to_read));
1216
if(ssret == -1){
1217
perror_plus("read");
1218
free(flagstring);
1219
close(flags_fd);
1220
return 0;
1221
}
1222
to_read -= ssret;
1223
if(ssret == 0){
1224
break;
1225
}
1226
}
1227
close(flags_fd);
1228
intmax_t tmpmax;
1229
char *tmp;
1230
errno = 0;
1231
tmpmax = strtoimax(flagstring, &tmp, 0);
1232
if(errno != 0 or tmp == flagstring or (*tmp != '\0'
1233
and not (isspace(*tmp)))
1234
or tmpmax != (ifreq_flags)tmpmax){
1235
if(debug){
1236
fprintf(stderr, "Invalid flags \"%s\" for interface \"%s\"\n",
1237
flagstring, if_entry->d_name);
1238
}
1239
free(flagstring);
1240
return 0;
1241
}
1242
free(flagstring);
1243
ifreq_flags flags = (ifreq_flags)tmpmax;
1244
/* Reject the loopback device */
1245
if(flags & IFF_LOOPBACK){
1246
if(debug){
1247
fprintf(stderr, "Rejecting loopback interface \"%s\"\n",
1240
1241
struct ifreq ifr;
1242
if(not get_flags(if_entry->d_name, &ifr)){
1243
if(debug){
1244
fprintf(stderr, "Mandos plugin mandos-client: "
1245
"Failed to get flags for interface \"%s\"\n",
1248
1246
if_entry->d_name);
1249
1247
}
1250
1248
return 0;
1251
1249
}
1252
1250
1253
1251
/* Reject down interfaces */
1254
if(not (flags & IFF_UP)){
1255
return 0;
1256
}
1257
1258
/* Accept point-to-point devices only if connect_to is specified */
1259
if(connect_to != NULL and (flags & IFF_POINTOPOINT)){
1260
if(debug){
1261
fprintf(stderr, "Accepting point-to-point interface \"%s\"\n",
1262
if_entry->d_name);
1263
}
1264
return 1;
1265
}
1266
/* Otherwise, reject non-broadcast-capable devices */
1267
if(not (flags & IFF_BROADCAST)){
1268
if(debug){
1269
fprintf(stderr, "Rejecting non-broadcast interface \"%s\"\n",
1270
if_entry->d_name);
1271
}
1272
return 0;
1273
}
1274
/* Reject non-ARP interfaces (including dummy interfaces) */
1275
if(flags & IFF_NOARP){
1276
if(debug){
1277
fprintf(stderr, "Rejecting non-ARP interface \"%s\"\n",
1278
if_entry->d_name);
1279
}
1280
return 0;
1281
}
1282
/* Accept this device */
1283
if(debug){
1284
fprintf(stderr, "Interface \"%s\" is acceptable\n",
1285
if_entry->d_name);
1252
if(not (ifr.ifr_flags & IFF_UP)){
1253
if(debug){
1254
fprintf(stderr, "Mandos plugin mandos-client: "
1255
"Rejecting down interface \"%s\"\n",
1256
if_entry->d_name);
1257
}
1258
return 0;
1259
}
1260
1261
/* Reject non-running interfaces */
1262
if(not (ifr.ifr_flags & IFF_RUNNING)){
1263
if(debug){
1264
fprintf(stderr, "Mandos plugin mandos-client: "
1265
"Rejecting non-running interface \"%s\"\n",
1266
if_entry->d_name);
1267
}
1268
return 0;
1269
}
1270
1271
if(not good_flags(if_entry->d_name, &ifr)){
1272
return 0;
1286
1273
}
1287
1274
return 1;
1288
1275
}
1301
1288
/* Is this directory entry a runnable program? */
1302
1289
int runnable_hook(const struct dirent *direntry){
1303
1290
int ret;
1291
size_t sret;
1304
1292
struct stat st;
1305
1293
1306
1294
if((direntry->d_name)[0] == '\0'){
1308
1296
return 0;
1309
1297
}
1310
1298
1311
/* Save pointer to last character */
1312
char *end = strchr(direntry->d_name, '\0')-1;
1313
1314
if(*end == '~'){
1315
/* Backup name~ */
1316
return 0;
1317
}
1318
1319
if(((direntry->d_name)[0] == '#')
1320
and (*end == '#')){
1321
/* Temporary #name# */
1322
return 0;
1323
}
1324
1325
/* XXX more rules here */
1326
1327
ret = stat(direntry->d_name, &st);
1299
sret = strspn(direntry->d_name, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
1300
"abcdefghijklmnopqrstuvwxyz"
1301
"0123456789"
1302
"_-");
1303
if((direntry->d_name)[sret] != '\0'){
1304
/* Contains non-allowed characters */
1305
if(debug){
1306
fprintf(stderr, "Mandos plugin mandos-client: "
1307
"Ignoring hook \"%s\" with bad name\n",
1308
direntry->d_name);
1309
}
1310
return 0;
1311
}
1312
1313
char *fullname = NULL;
1314
ret = asprintf(&fullname, "%s/%s", hookdir, direntry->d_name);
1315
if(ret < 0){
1316
perror_plus("asprintf");
1317
return 0;
1318
}
1319
1320
ret = stat(fullname, &st);
1328
1321
if(ret == -1){
1329
1322
if(debug){
1330
perror_plus("Could not stat plugin");
1323
perror_plus("Could not stat hook");
1331
1324
}
1332
1325
return 0;
1333
1326
}
1334
if(not (st.st_mode & S_ISREG)){
1327
if(not (S_ISREG(st.st_mode))){
1335
1328
/* Not a regular file */
1329
if(debug){
1330
fprintf(stderr, "Mandos plugin mandos-client: "
1331
"Ignoring hook \"%s\" - not a file\n",
1332
direntry->d_name);
1333
}
1336
1334
return 0;
1337
1335
}
1338
1336
if(not (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))){
1339
1337
/* Not executable */
1338
if(debug){
1339
fprintf(stderr, "Mandos plugin mandos-client: "
1340
"Ignoring hook \"%s\" - not executable\n",
1341
direntry->d_name);
1342
}
1340
1343
return 0;
1341
1344
}
1342
1345
return 1;
1351
1354
while(true){
1352
1355
if(mc.current_server == NULL){
1353
1356
if (debug){
1354
fprintf(stderr,
1357
fprintf(stderr, "Mandos plugin mandos-client: "
1355
1358
"Wait until first server is found. No timeout!\n");
1356
1359
}
1357
1360
ret = avahi_simple_poll_iterate(s, -1);
1358
1361
} else {
1359
1362
if (debug){
1360
fprintf(stderr, "Check current_server if we should run it,"
1363
fprintf(stderr, "Mandos plugin mandos-client: "
1364
"Check current_server if we should run it,"
1361
1365
" or wait\n");
1362
1366
}
1363
1367
/* the current time */
1380
1384
- ((intmax_t)waited_time.tv_nsec / 1000000));
1381
1385
1382
1386
if (debug){
1383
fprintf(stderr, "Blocking for %" PRIdMAX " ms\n", block_time);
1387
fprintf(stderr, "Mandos plugin mandos-client: "
1388
"Blocking for %" PRIdMAX " ms\n", block_time);
1384
1389
}
1385
1390
1386
1391
if(block_time <= 0){
1406
1411
ret = avahi_simple_poll_iterate(s, (int)block_time);
1407
1412
}
1408
1413
if(ret != 0){
1409
if (ret > 0 or errno != EINTR) {
1414
if (ret > 0 or errno != EINTR){
1410
1415
return (ret != 1) ? ret : 0;
1411
1416
}
1412
1417
}
1500
1505
.arg = "SECONDS",
1501
1506
.doc = "Retry interval used when denied by the mandos server",
1502
1507
.group = 2 },
1508
{ .name = "network-hook-dir", .key = 133,
1509
.arg = "DIR",
1510
.doc = "Directory where network hooks are located",
1511
.group = 2 },
1503
1512
/*
1504
1513
* These reproduce what we would get without ARGP_NO_HELP
1505
1514
*/
1558
1567
argp_error(state, "Bad retry interval");
1559
1568
}
1560
1569
break;
1570
case 133: /* --network-hook-dir */
1571
hookdir = arg;
1572
break;
1561
1573
/*
1562
1574
* These reproduce what we would get without ARGP_NO_HELP
1563
1575
*/
1569
1581
argp_state_help(state, state->out_stream,
1570
1582
ARGP_HELP_USAGE | ARGP_HELP_EXIT_ERR);
1571
1583
case 'V': /* --version */
1584
fprintf(state->out_stream, "Mandos plugin mandos-client: ");
1572
1585
fprintf(state->out_stream, "%s\n", argp_program_version);
1573
1586
exit(argp_err_exit_status);
1574
1587
break;
1663
1676
{
1664
1677
struct dirent **direntries;
1665
1678
struct dirent *direntry;
1666
int numhooks = scandir(HOOKDIR, &direntries, runnable_hook,
1679
int numhooks = scandir(hookdir, &direntries, runnable_hook,
1667
1680
alphasort);
1668
int devnull = open("/dev/null", O_RDONLY);
1669
for(int i = 0; i < numhooks; i++){
1670
direntry = direntries[0];
1671
char *fullname = NULL;
1672
ret = asprintf(&fullname, "%s/%s", tempdir,
1673
direntry->d_name);
1674
if(ret < 0){
1675
perror_plus("asprintf");
1676
continue;
1677
}
1678
pid_t hook_pid = fork();
1679
if(hook_pid == 0){
1680
/* Child */
1681
dup2(devnull, STDIN_FILENO);
1682
close(devnull);
1683
dup2(STDERR_FILENO, STDOUT_FILENO);
1684
setenv("DEVICE", interface, 1);
1685
setenv("VERBOSE", debug ? "1" : "0", 1);
1686
setenv("MODE", "start", 1);
1687
/* setenv( XXX more here */
1688
ret = execl(fullname, direntry->d_name, "start");
1689
perror_plus("execl");
1690
}
1691
free(fullname);
1692
if(quit_now){
1693
goto end;
1694
}
1681
if(numhooks == -1){
1682
perror_plus("scandir");
1683
} else {
1684
int devnull = open("/dev/null", O_RDONLY);
1685
for(int i = 0; i < numhooks; i++){
1686
direntry = direntries[0];
1687
char *fullname = NULL;
1688
ret = asprintf(&fullname, "%s/%s", hookdir, direntry->d_name);
1689
if(ret < 0){
1690
perror_plus("asprintf");
1691
continue;
1692
}
1693
pid_t hook_pid = fork();
1694
if(hook_pid == 0){
1695
/* Child */
1696
dup2(devnull, STDIN_FILENO);
1697
close(devnull);
1698
dup2(STDERR_FILENO, STDOUT_FILENO);
1699
ret = setenv("MANDOSNETHOOKDIR", hookdir, 1);
1700
if(ret == -1){
1701
perror_plus("setenv");
1702
exit(1);
1703
}
1704
ret = setenv("DEVICE", interface, 1);
1705
if(ret == -1){
1706
perror_plus("setenv");
1707
exit(1);
1708
}
1709
ret = setenv("VERBOSE", debug ? "1" : "0", 1);
1710
if(ret == -1){
1711
perror_plus("setenv");
1712
exit(1);
1713
}
1714
ret = setenv("MODE", "start", 1);
1715
if(ret == -1){
1716
perror_plus("setenv");
1717
exit(1);
1718
}
1719
char *delaystring;
1720
ret = asprintf(&delaystring, "%f", delay);
1721
if(ret == -1){
1722
perror_plus("asprintf");
1723
exit(1);
1724
}
1725
ret = setenv("DELAY", delaystring, 1);
1726
if(ret == -1){
1727
free(delaystring);
1728
perror_plus("setenv");
1729
exit(1);
1730
}
1731
free(delaystring);
1732
ret = execl(fullname, direntry->d_name, "start", NULL);
1733
perror_plus("execl");
1734
} else {
1735
int status;
1736
if(TEMP_FAILURE_RETRY(waitpid(hook_pid, &status, 0)) == -1){
1737
perror_plus("waitpid");
1738
free(fullname);
1739
continue;
1740
}
1741
if(WIFEXITED(status)){
1742
if(WEXITSTATUS(status) != 0){
1743
fprintf(stderr, "Mandos plugin mandos-client: "
1744
"Warning: network hook \"%s\" exited"
1745
" with status %d\n", direntry->d_name,
1746
WEXITSTATUS(status));
1747
free(fullname);
1748
continue;
1749
}
1750
} else if(WIFSIGNALED(status)){
1751
fprintf(stderr, "Mandos plugin mandos-client: "
1752
"Warning: network hook \"%s\" died by"
1753
" signal %d\n", direntry->d_name,
1754
WTERMSIG(status));
1755
free(fullname);
1756
continue;
1757
} else {
1758
fprintf(stderr, "Mandos plugin mandos-client: "
1759
"Warning: network hook \"%s\" crashed\n",
1760
direntry->d_name);
1761
free(fullname);
1762
continue;
1763
}
1764
}
1765
free(fullname);
1766
if(quit_now){
1767
goto end;
1768
}
1769
}
1770
close(devnull);
1695
1771
}
1696
close(devnull);
1697
1772
}
1698
1773
1699
1774
if(not debug){
1702
1777
1703
1778
if(interface[0] == '\0'){
1704
1779
struct dirent **direntries;
1705
ret = scandir(sys_class_net, &direntries, good_interface,
1780
/* First look for interfaces that are up */
1781
ret = scandir(sys_class_net, &direntries, up_interface,
1706
1782
alphasort);
1783
if(ret == 0){
1784
/* No up interfaces, look for any good interfaces */
1785
free(direntries);
1786
ret = scandir(sys_class_net, &direntries, good_interface,
1787
alphasort);
1788
}
1707
1789
if(ret >= 1){
1708
/* Pick the first good interface */
1790
/* Pick the first interface returned */
1709
1791
interface = strdup(direntries[0]->d_name);
1710
1792
if(debug){
1711
fprintf(stderr, "Using interface \"%s\"\n", interface);
1793
fprintf(stderr, "Mandos plugin mandos-client: "
1794
"Using interface \"%s\"\n", interface);
1712
1795
}
1713
1796
if(interface == NULL){
1714
1797
perror_plus("malloc");
1719
1802
free(direntries);
1720
1803
} else {
1721
1804
free(direntries);
1722
fprintf(stderr, "Could not find a network interface\n");
1805
fprintf(stderr, "Mandos plugin mandos-client: "
1806
"Could not find a network interface\n");
1723
1807
exitcode = EXIT_FAILURE;
1724
1808
goto end;
1725
1809
}
1731
1815
srand((unsigned int) time(NULL));
1732
1816
mc.simple_poll = avahi_simple_poll_new();
1733
1817
if(mc.simple_poll == NULL){
1734
fprintf(stderr, "Avahi: Failed to create simple poll object.\n");
1818
fprintf(stderr, "Mandos plugin mandos-client: "
1819
"Avahi: Failed to create simple poll object.\n");
1735
1820
exitcode = EX_UNAVAILABLE;
1736
1821
goto end;
1737
1822
}
1803
1888
if(strcmp(interface, "none") != 0){
1804
1889
if_index = (AvahiIfIndex) if_nametoindex(interface);
1805
1890
if(if_index == 0){
1806
fprintf(stderr, "No such interface: \"%s\"\n", interface);
1891
fprintf(stderr, "Mandos plugin mandos-client: "
1892
"No such interface: \"%s\"\n", interface);
1807
1893
exitcode = EX_UNAVAILABLE;
1808
1894
goto end;
1809
1895
}
1950
2036
1951
2037
ret = init_gnutls_global(pubkey, seckey);
1952
2038
if(ret == -1){
1953
fprintf(stderr, "init_gnutls_global failed\n");
2039
fprintf(stderr, "Mandos plugin mandos-client: "
2040
"init_gnutls_global failed\n");
1954
2041
exitcode = EX_UNAVAILABLE;
1955
2042
goto end;
1956
2043
} else {
1972
2059
}
1973
2060
1974
2061
if(not init_gpgme(pubkey, seckey, tempdir)){
1975
fprintf(stderr, "init_gpgme failed\n");
2062
fprintf(stderr, "Mandos plugin mandos-client: "
2063
"init_gpgme failed\n");
1976
2064
exitcode = EX_UNAVAILABLE;
1977
2065
goto end;
1978
2066
} else {
1988
2076
/* (Mainly meant for debugging) */
1989
2077
char *address = strrchr(connect_to, ':');
1990
2078
if(address == NULL){
1991
fprintf(stderr, "No colon in address\n");
2079
fprintf(stderr, "Mandos plugin mandos-client: "
2080
"No colon in address\n");
1992
2081
exitcode = EX_USAGE;
1993
2082
goto end;
1994
2083
}
2002
2091
tmpmax = strtoimax(address+1, &tmp, 10);
2003
2092
if(errno != 0 or tmp == address+1 or *tmp != '\0'
2004
2093
or tmpmax != (uint16_t)tmpmax){
2005
fprintf(stderr, "Bad port number\n");
2094
fprintf(stderr, "Mandos plugin mandos-client: "
2095
"Bad port number\n");
2006
2096
exitcode = EX_USAGE;
2007
2097
goto end;
2008
2098
}
2038
2128
break;
2039
2129
}
2040
2130
if(debug){
2041
fprintf(stderr, "Retrying in %d seconds\n",
2042
(int)retry_interval);
2131
fprintf(stderr, "Mandos plugin mandos-client: "
2132
"Retrying in %d seconds\n", (int)retry_interval);
2043
2133
}
2044
2134
sleep((int)retry_interval);
2045
2135
}
2075
2165
2076
2166
/* Check if creating the Avahi server object succeeded */
2077
2167
if(mc.server == NULL){
2078
fprintf(stderr, "Failed to create Avahi server: %s\n",
2168
fprintf(stderr, "Mandos plugin mandos-client: "
2169
"Failed to create Avahi server: %s\n",
2079
2170
avahi_strerror(error));
2080
2171
exitcode = EX_UNAVAILABLE;
2081
2172
goto end;
2090
2181
AVAHI_PROTO_UNSPEC, "_mandos._tcp",
2091
2182
NULL, 0, browse_callback, NULL);
2092
2183
if(sb == NULL){
2093
fprintf(stderr, "Failed to create service browser: %s\n",
2184
fprintf(stderr, "Mandos plugin mandos-client: "
2185
"Failed to create service browser: %s\n",
2094
2186
avahi_strerror(avahi_server_errno(mc.server)));
2095
2187
exitcode = EX_UNAVAILABLE;
2096
2188
goto end;
2103
2195
/* Run the main loop */
2104
2196
2105
2197
if(debug){
2106
fprintf(stderr, "Starting Avahi loop search\n");
2198
fprintf(stderr, "Mandos plugin mandos-client: "
2199
"Starting Avahi loop search\n");
2107
2200
}
2108
2201
2109
2202
ret = avahi_loop_with_timeout(mc.simple_poll,
2110
2203
(int)(retry_interval * 1000));
2111
2204
if(debug){
2112
fprintf(stderr, "avahi_loop_with_timeout exited %s\n",
2205
fprintf(stderr, "Mandos plugin mandos-client: "
2206
"avahi_loop_with_timeout exited %s\n",
2113
2207
(ret == 0) ? "successfully" : "with error");
2114
2208
}
2115
2209
2116
2210
end:
2117
2211
2118
2212
if(debug){
2119
fprintf(stderr, "%s exiting\n", argv[0]);
2213
fprintf(stderr, "Mandos plugin mandos-client: "
2214
"%s exiting\n", argv[0]);
2120
2215
}
2121
2216
2122
2217
/* Cleanup things */
2164
2259
ret = ioctl(sd, SIOCGIFFLAGS, &network);
2165
2260
if(ret == -1){
2166
2261
perror_plus("ioctl SIOCGIFFLAGS");
2167
} else if(network.ifr_flags & IFF_UP) {
2262
} else if(network.ifr_flags & IFF_UP){
2168
2263
network.ifr_flags &= ~(short)IFF_UP; /* clear flag */
2169
2264
ret = ioctl(sd, SIOCSIFFLAGS, &network);
2170
2265
if(ret == -1){
2202
2297
}
2203
2298
ret = remove(fullname);
2204
2299
if(ret == -1){
2205
fprintf(stderr, "remove(\"%s\"): %s\n", fullname,
2206
strerror(errno));
2300
fprintf(stderr, "Mandos plugin mandos-client: "
2301
"remove(\"%s\"): %s\n", fullname, strerror(errno));
2207
2302
}
2208
2303
free(fullname);
2209
2304
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0