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- Committer: Björn Påhlsson
- Date: 2011-10-02 13:45:45 UTC
- mto: This revision was merged to the branch mainline in revision 505.
- Revision ID: belorn@fukt.bsnet.se-20111002134545-oytmfbl15r8lsm6p
working transition code for going between se.bsnet.fukt to se.recompile
- files removed:
- debian/source/local-options
- files modified:
- DBUS-API
added
removed
plugins.d/mandos-client.c
26
26
* along with this program. If not, see
27
27
* <http://www.gnu.org/licenses/>.
28
28
*
29
* Contact the authors at <mandos@recompile.se>.
29
* Contact the authors at <mandos@fukt.bsnet.se>.
30
30
*/
31
31
32
32
/* Needed by GPGME, specifically gpgme_data_seek() */
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(), S_ISREG */
56
#include <sys/stat.h> /* open() */
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() */
90
88
91
89
#ifdef __linux__
92
90
#include <sys/klog.h> /* klogctl() */
110
108
init_gnutls_session(),
111
109
GNUTLS_* */
112
110
#include <gnutls/openpgp.h>
113
/* gnutls_certificate_set_openpgp_key_file(),
114
GNUTLS_OPENPGP_FMT_BASE64 */
111
/* gnutls_certificate_set_openpgp_key_file(),
112
GNUTLS_OPENPGP_FMT_BASE64 */
115
113
116
114
/* GPGME */
117
115
#include <gpgme.h> /* All GPGME types, constants and
125
123
#define PATHDIR "/conf/conf.d/mandos"
126
124
#define SECKEY "seckey.txt"
127
125
#define PUBKEY "pubkey.txt"
128
#define HOOKDIR "/lib/mandos/network-hooks.d"
129
126
130
127
bool debug = false;
131
128
static const char mandos_protocol_version[] = "1";
132
129
const char *argp_program_version = "mandos-client " VERSION;
133
const char *argp_program_bug_address = "<mandos@recompile.se>";
130
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
134
131
static const char sys_class_net[] = "/sys/class/net";
135
132
char *connect_to = NULL;
136
const char *hookdir = HOOKDIR;
137
133
138
134
/* Doubly linked list that need to be circularly linked when used */
139
135
typedef struct server{
174
170
perror(print_text);
175
171
}
176
172
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: ", program_invocation_short_name));
182
return TEMP_FAILURE_RETRY(vfprintf(stream, format, ap));
183
}
184
185
173
/*
186
174
* Make additional room in "buffer" for at least BUFFER_SIZE more
187
175
* bytes. "buffer_capacity" is how much is currently allocated,
188
176
* "buffer_length" is how much is already used.
189
177
*/
190
178
size_t incbuffer(char **buffer, size_t buffer_length,
191
size_t buffer_capacity){
179
size_t buffer_capacity){
192
180
if(buffer_length + BUFFER_SIZE > buffer_capacity){
193
181
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
194
182
if(buffer == NULL){
200
188
}
201
189
202
190
/* Add server to set of servers to retry periodically */
203
int add_server(const char *ip, uint16_t port, AvahiIfIndex if_index,
204
int af){
191
int add_server(const char *ip, uint16_t port,
192
AvahiIfIndex if_index,
193
int af){
205
194
int ret;
206
195
server *new_server = malloc(sizeof(server));
207
196
if(new_server == NULL){
209
198
return -1;
210
199
}
211
200
*new_server = (server){ .ip = strdup(ip),
212
.port = port,
213
.if_index = if_index,
214
.af = af };
201
.port = port,
202
.if_index = if_index,
203
.af = af };
215
204
if(new_server->ip == NULL){
216
205
perror_plus("strdup");
217
206
return -1;
239
228
/*
240
229
* Initialize GPGME.
241
230
*/
242
static bool init_gpgme(const char *seckey, const char *pubkey,
243
const char *tempdir){
231
static bool init_gpgme(const char *seckey,
232
const char *pubkey, const char *tempdir){
244
233
gpgme_error_t rc;
245
234
gpgme_engine_info_t engine_info;
246
235
261
250
262
251
rc = gpgme_data_new_from_fd(&pgp_data, fd);
263
252
if(rc != GPG_ERR_NO_ERROR){
264
fprintf(stderr, "Mandos plugin mandos-client: "
265
"bad gpgme_data_new_from_fd: %s: %s\n",
253
fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
266
254
gpgme_strsource(rc), gpgme_strerror(rc));
267
255
return false;
268
256
}
269
257
270
258
rc = gpgme_op_import(mc.ctx, pgp_data);
271
259
if(rc != GPG_ERR_NO_ERROR){
272
fprintf(stderr, "Mandos plugin mandos-client: "
273
"bad gpgme_op_import: %s: %s\n",
260
fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
274
261
gpgme_strsource(rc), gpgme_strerror(rc));
275
262
return false;
276
263
}
284
271
}
285
272
286
273
if(debug){
287
fprintf(stderr, "Mandos plugin mandos-client: "
288
"Initializing GPGME\n");
274
fprintf(stderr, "Initializing GPGME\n");
289
275
}
290
276
291
277
/* Init GPGME */
292
278
gpgme_check_version(NULL);
293
279
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
294
280
if(rc != GPG_ERR_NO_ERROR){
295
fprintf(stderr, "Mandos plugin mandos-client: "
296
"bad gpgme_engine_check_version: %s: %s\n",
281
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
297
282
gpgme_strsource(rc), gpgme_strerror(rc));
298
283
return false;
299
284
}
301
286
/* Set GPGME home directory for the OpenPGP engine only */
302
287
rc = gpgme_get_engine_info(&engine_info);
303
288
if(rc != GPG_ERR_NO_ERROR){
304
fprintf(stderr, "Mandos plugin mandos-client: "
305
"bad gpgme_get_engine_info: %s: %s\n",
289
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
306
290
gpgme_strsource(rc), gpgme_strerror(rc));
307
291
return false;
308
292
}
315
299
engine_info = engine_info->next;
316
300
}
317
301
if(engine_info == NULL){
318
fprintf(stderr, "Mandos plugin mandos-client: "
319
"Could not set GPGME home dir to %s\n", tempdir);
302
fprintf(stderr, "Could not set GPGME home dir to %s\n", tempdir);
320
303
return false;
321
304
}
322
305
323
306
/* Create new GPGME "context" */
324
307
rc = gpgme_new(&(mc.ctx));
325
308
if(rc != GPG_ERR_NO_ERROR){
326
fprintf(stderr, "Mandos plugin mandos-client: "
327
"bad gpgme_new: %s: %s\n", gpgme_strsource(rc),
328
gpgme_strerror(rc));
309
fprintf(stderr, "bad gpgme_new: %s: %s\n",
310
gpgme_strsource(rc), gpgme_strerror(rc));
329
311
return false;
330
312
}
331
313
350
332
ssize_t plaintext_length = 0;
351
333
352
334
if(debug){
353
fprintf(stderr, "Mandos plugin mandos-client: "
354
"Trying to decrypt OpenPGP data\n");
335
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
355
336
}
356
337
357
338
/* Create new GPGME data buffer from memory cryptotext */
358
339
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
359
340
0);
360
341
if(rc != GPG_ERR_NO_ERROR){
361
fprintf(stderr, "Mandos plugin mandos-client: "
362
"bad gpgme_data_new_from_mem: %s: %s\n",
342
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
363
343
gpgme_strsource(rc), gpgme_strerror(rc));
364
344
return -1;
365
345
}
367
347
/* Create new empty GPGME data buffer for the plaintext */
368
348
rc = gpgme_data_new(&dh_plain);
369
349
if(rc != GPG_ERR_NO_ERROR){
370
fprintf(stderr, "Mandos plugin mandos-client: "
371
"bad gpgme_data_new: %s: %s\n",
350
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
372
351
gpgme_strsource(rc), gpgme_strerror(rc));
373
352
gpgme_data_release(dh_crypto);
374
353
return -1;
378
357
data buffer */
379
358
rc = gpgme_op_decrypt(mc.ctx, dh_crypto, dh_plain);
380
359
if(rc != GPG_ERR_NO_ERROR){
381
fprintf(stderr, "Mandos plugin mandos-client: "
382
"bad gpgme_op_decrypt: %s: %s\n",
360
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
383
361
gpgme_strsource(rc), gpgme_strerror(rc));
384
362
plaintext_length = -1;
385
363
if(debug){
386
364
gpgme_decrypt_result_t result;
387
365
result = gpgme_op_decrypt_result(mc.ctx);
388
366
if(result == NULL){
389
fprintf(stderr, "Mandos plugin mandos-client: "
390
"gpgme_op_decrypt_result failed\n");
367
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
391
368
} else {
392
fprintf(stderr, "Mandos plugin mandos-client: "
393
"Unsupported algorithm: %s\n",
369
fprintf(stderr, "Unsupported algorithm: %s\n",
394
370
result->unsupported_algorithm);
395
fprintf(stderr, "Mandos plugin mandos-client: "
396
"Wrong key usage: %u\n",
371
fprintf(stderr, "Wrong key usage: %u\n",
397
372
result->wrong_key_usage);
398
373
if(result->file_name != NULL){
399
fprintf(stderr, "Mandos plugin mandos-client: "
400
"File name: %s\n", result->file_name);
374
fprintf(stderr, "File name: %s\n", result->file_name);
401
375
}
402
376
gpgme_recipient_t recipient;
403
377
recipient = result->recipients;
404
378
while(recipient != NULL){
405
fprintf(stderr, "Mandos plugin mandos-client: "
406
"Public key algorithm: %s\n",
379
fprintf(stderr, "Public key algorithm: %s\n",
407
380
gpgme_pubkey_algo_name(recipient->pubkey_algo));
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",
381
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
382
fprintf(stderr, "Secret key available: %s\n",
412
383
recipient->status == GPG_ERR_NO_SECKEY
413
384
? "No" : "Yes");
414
385
recipient = recipient->next;
419
390
}
420
391
421
392
if(debug){
422
fprintf(stderr, "Mandos plugin mandos-client: "
423
"Decryption of OpenPGP data succeeded\n");
393
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
424
394
}
425
395
426
396
/* Seek back to the beginning of the GPGME plaintext data buffer */
433
403
*plaintext = NULL;
434
404
while(true){
435
405
plaintext_capacity = incbuffer(plaintext,
436
(size_t)plaintext_length,
437
plaintext_capacity);
406
(size_t)plaintext_length,
407
plaintext_capacity);
438
408
if(plaintext_capacity == 0){
439
perror_plus("incbuffer");
440
plaintext_length = -1;
441
goto decrypt_end;
409
perror_plus("incbuffer");
410
plaintext_length = -1;
411
goto decrypt_end;
442
412
}
443
413
444
414
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
457
427
}
458
428
459
429
if(debug){
460
fprintf(stderr, "Mandos plugin mandos-client: "
461
"Decrypted password is: ");
430
fprintf(stderr, "Decrypted password is: ");
462
431
for(ssize_t i = 0; i < plaintext_length; i++){
463
432
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
464
433
}
486
455
/* GnuTLS log function callback */
487
456
static void debuggnutls(__attribute__((unused)) int level,
488
457
const char* string){
489
fprintf(stderr, "Mandos plugin mandos-client: GnuTLS: %s", string);
458
fprintf(stderr, "GnuTLS: %s", string);
490
459
}
491
460
492
461
static int init_gnutls_global(const char *pubkeyfilename,
494
463
int ret;
495
464
496
465
if(debug){
497
fprintf(stderr, "Mandos plugin mandos-client: "
498
"Initializing GnuTLS\n");
466
fprintf(stderr, "Initializing GnuTLS\n");
499
467
}
500
468
501
469
ret = gnutls_global_init();
502
470
if(ret != GNUTLS_E_SUCCESS){
503
fprintf(stderr, "Mandos plugin mandos-client: "
504
"GnuTLS global_init: %s\n", safer_gnutls_strerror(ret));
471
fprintf(stderr, "GnuTLS global_init: %s\n",
472
safer_gnutls_strerror(ret));
505
473
return -1;
506
474
}
507
475
516
484
/* OpenPGP credentials */
517
485
ret = gnutls_certificate_allocate_credentials(&mc.cred);
518
486
if(ret != GNUTLS_E_SUCCESS){
519
fprintf(stderr, "Mandos plugin mandos-client: "
520
"GnuTLS memory error: %s\n", safer_gnutls_strerror(ret));
487
fprintf(stderr, "GnuTLS memory error: %s\n",
488
safer_gnutls_strerror(ret));
521
489
gnutls_global_deinit();
522
490
return -1;
523
491
}
524
492
525
493
if(debug){
526
fprintf(stderr, "Mandos plugin mandos-client: "
527
"Attempting to use OpenPGP public key %s and"
494
fprintf(stderr, "Attempting to use OpenPGP public key %s and"
528
495
" secret key %s as GnuTLS credentials\n", pubkeyfilename,
529
496
seckeyfilename);
530
497
}
534
501
GNUTLS_OPENPGP_FMT_BASE64);
535
502
if(ret != GNUTLS_E_SUCCESS){
536
503
fprintf(stderr,
537
"Mandos plugin mandos-client: "
538
504
"Error[%d] while reading the OpenPGP key pair ('%s',"
539
505
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
540
fprintf(stderr, "Mandos plugin mandos-client: "
541
"The GnuTLS error is: %s\n", safer_gnutls_strerror(ret));
506
fprintf(stderr, "The GnuTLS error is: %s\n",
507
safer_gnutls_strerror(ret));
542
508
goto globalfail;
543
509
}
544
510
545
511
/* GnuTLS server initialization */
546
512
ret = gnutls_dh_params_init(&mc.dh_params);
547
513
if(ret != GNUTLS_E_SUCCESS){
548
fprintf(stderr, "Mandos plugin mandos-client: "
549
"Error in GnuTLS DH parameter initialization:"
514
fprintf(stderr, "Error in GnuTLS DH parameter initialization:"
550
515
" %s\n", safer_gnutls_strerror(ret));
551
516
goto globalfail;
552
517
}
553
518
ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
554
519
if(ret != GNUTLS_E_SUCCESS){
555
fprintf(stderr, "Mandos plugin mandos-client: "
556
"Error in GnuTLS prime generation: %s\n",
520
fprintf(stderr, "Error in GnuTLS prime generation: %s\n",
557
521
safer_gnutls_strerror(ret));
558
522
goto globalfail;
559
523
}
580
544
}
581
545
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
582
546
if(ret != GNUTLS_E_SUCCESS){
583
fprintf(stderr, "Mandos plugin mandos-client: "
584
"Error in GnuTLS session initialization: %s\n",
547
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
585
548
safer_gnutls_strerror(ret));
586
549
}
587
550
595
558
}
596
559
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
597
560
if(ret != GNUTLS_E_SUCCESS){
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));
561
fprintf(stderr, "Syntax error at: %s\n", err);
562
fprintf(stderr, "GnuTLS error: %s\n",
563
safer_gnutls_strerror(ret));
602
564
gnutls_deinit(*session);
603
565
return -1;
604
566
}
613
575
}
614
576
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
615
577
if(ret != GNUTLS_E_SUCCESS){
616
fprintf(stderr, "Mandos plugin mandos-client: "
617
"Error setting GnuTLS credentials: %s\n",
578
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
618
579
safer_gnutls_strerror(ret));
619
580
gnutls_deinit(*session);
620
581
return -1;
666
627
pf = PF_INET;
667
628
break;
668
629
default:
669
fprintf(stderr, "Mandos plugin mandos-client: "
670
"Bad address family: %d\n", af);
630
fprintf(stderr, "Bad address family: %d\n", af);
671
631
errno = EINVAL;
672
632
return -1;
673
633
}
678
638
}
679
639
680
640
if(debug){
681
fprintf(stderr, "Mandos plugin mandos-client: "
682
"Setting up a TCP connection to %s, port %" PRIu16
641
fprintf(stderr, "Setting up a TCP connection to %s, port %" PRIu16
683
642
"\n", ip, port);
684
643
}
685
644
712
671
}
713
672
if(ret == 0){
714
673
int e = errno;
715
fprintf(stderr, "Mandos plugin mandos-client: "
716
"Bad address: %s\n", ip);
674
fprintf(stderr, "Bad address: %s\n", ip);
717
675
errno = e;
718
676
goto mandos_end;
719
677
}
724
682
725
683
if(IN6_IS_ADDR_LINKLOCAL /* Spurious warnings from */
726
684
(&to.in6.sin6_addr)){ /* -Wstrict-aliasing=2 or lower and
727
-Wunreachable-code*/
685
-Wunreachable-code*/
728
686
if(if_index == AVAHI_IF_UNSPEC){
729
fprintf(stderr, "Mandos plugin mandos-client: "
730
"An IPv6 link-local address is incomplete"
687
fprintf(stderr, "An IPv6 link-local address is incomplete"
731
688
" without a network interface\n");
732
689
errno = EINVAL;
733
690
goto mandos_end;
752
709
if(if_indextoname((unsigned int)if_index, interface) == NULL){
753
710
perror_plus("if_indextoname");
754
711
} else {
755
fprintf(stderr, "Mandos plugin mandos-client: "
756
"Connection to: %s%%%s, port %" PRIu16 "\n",
712
fprintf(stderr, "Connection to: %s%%%s, port %" PRIu16 "\n",
757
713
ip, interface, port);
758
714
}
759
715
} else {
760
fprintf(stderr, "Mandos plugin mandos-client: "
761
"Connection to: %s, port %" PRIu16 "\n", ip, port);
716
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
717
port);
762
718
}
763
719
char addrstr[(INET_ADDRSTRLEN > INET6_ADDRSTRLEN) ?
764
720
INET_ADDRSTRLEN : INET6_ADDRSTRLEN] = "";
774
730
perror_plus("inet_ntop");
775
731
} else {
776
732
if(strcmp(addrstr, ip) != 0){
777
fprintf(stderr, "Mandos plugin mandos-client: "
778
"Canonical address form: %s\n", addrstr);
733
fprintf(stderr, "Canonical address form: %s\n", addrstr);
779
734
}
780
735
}
781
736
}
809
764
while(true){
810
765
size_t out_size = strlen(out);
811
766
ret = (int)TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
812
out_size - written));
767
out_size - written));
813
768
if(ret == -1){
814
769
int e = errno;
815
770
perror_plus("write");
835
790
}
836
791
837
792
if(debug){
838
fprintf(stderr, "Mandos plugin mandos-client: "
839
"Establishing TLS session with %s\n", ip);
793
fprintf(stderr, "Establishing TLS session with %s\n", ip);
840
794
}
841
795
842
796
if(quit_now){
862
816
863
817
if(ret != GNUTLS_E_SUCCESS){
864
818
if(debug){
865
fprintf(stderr, "Mandos plugin mandos-client: "
866
"*** GnuTLS Handshake failed ***\n");
819
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
867
820
gnutls_perror(ret);
868
821
}
869
822
errno = EPROTO;
873
826
/* Read OpenPGP packet that contains the wanted password */
874
827
875
828
if(debug){
876
fprintf(stderr, "Mandos plugin mandos-client: "
877
"Retrieving OpenPGP encrypted password from %s\n", ip);
829
fprintf(stderr, "Retrieving OpenPGP encrypted password from %s\n",
830
ip);
878
831
}
879
832
880
833
while(true){
885
838
}
886
839
887
840
buffer_capacity = incbuffer(&buffer, buffer_length,
888
buffer_capacity);
841
buffer_capacity);
889
842
if(buffer_capacity == 0){
890
843
int e = errno;
891
844
perror_plus("incbuffer");
918
871
}
919
872
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
920
873
if(ret < 0){
921
fprintf(stderr, "Mandos plugin mandos-client: "
922
"*** GnuTLS Re-handshake failed ***\n");
874
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
923
875
gnutls_perror(ret);
924
876
errno = EPROTO;
925
877
goto mandos_end;
926
878
}
927
879
break;
928
880
default:
929
fprintf(stderr, "Mandos plugin mandos-client: "
930
"Unknown error while reading data from"
881
fprintf(stderr, "Unknown error while reading data from"
931
882
" encrypted session with Mandos server\n");
932
883
gnutls_bye(session, GNUTLS_SHUT_RDWR);
933
884
errno = EIO;
939
890
}
940
891
941
892
if(debug){
942
fprintf(stderr, "Mandos plugin mandos-client: "
943
"Closing TLS session\n");
893
fprintf(stderr, "Closing TLS session\n");
944
894
}
945
895
946
896
if(quit_now){
958
908
959
909
if(buffer_length > 0){
960
910
ssize_t decrypted_buffer_size;
961
decrypted_buffer_size = pgp_packet_decrypt(buffer, buffer_length,
911
decrypted_buffer_size = pgp_packet_decrypt(buffer,
912
buffer_length,
962
913
&decrypted_buffer);
963
914
if(decrypted_buffer_size >= 0){
964
915
975
926
if(ret == 0 and ferror(stdout)){
976
927
int e = errno;
977
928
if(debug){
978
fprintf(stderr, "Mandos plugin mandos-client: "
979
"Error writing encrypted data: %s\n",
929
fprintf(stderr, "Error writing encrypted data: %s\n",
980
930
strerror(errno));
981
931
}
982
932
errno = e;
1040
990
switch(event){
1041
991
default:
1042
992
case AVAHI_RESOLVER_FAILURE:
1043
fprintf(stderr, "Mandos plugin mandos-client: "
1044
"(Avahi Resolver) Failed to resolve service '%s'"
993
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
1045
994
" of type '%s' in domain '%s': %s\n", name, type, domain,
1046
995
avahi_strerror(avahi_server_errno(mc.server)));
1047
996
break;
1051
1000
char ip[AVAHI_ADDRESS_STR_MAX];
1052
1001
avahi_address_snprint(ip, sizeof(ip), address);
1053
1002
if(debug){
1054
fprintf(stderr, "Mandos plugin mandos-client: "
1055
"Mandos server \"%s\" found on %s (%s, %"
1003
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
1056
1004
PRIdMAX ") on port %" PRIu16 "\n", name, host_name,
1057
1005
ip, (intmax_t)interface, port);
1058
1006
}
1092
1040
default:
1093
1041
case AVAHI_BROWSER_FAILURE:
1094
1042
1095
fprintf(stderr, "Mandos plugin mandos-client: "
1096
"(Avahi browser) %s\n",
1043
fprintf(stderr, "(Avahi browser) %s\n",
1097
1044
avahi_strerror(avahi_server_errno(mc.server)));
1098
1045
avahi_simple_poll_quit(mc.simple_poll);
1099
1046
return;
1107
1054
if(avahi_s_service_resolver_new(mc.server, interface, protocol,
1108
1055
name, type, domain, protocol, 0,
1109
1056
resolve_callback, NULL) == NULL)
1110
fprintf(stderr, "Mandos plugin mandos-client: "
1111
"Avahi: Failed to resolve service '%s': %s\n",
1057
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
1112
1058
name, avahi_strerror(avahi_server_errno(mc.server)));
1113
1059
break;
1114
1060
1118
1064
case AVAHI_BROWSER_ALL_FOR_NOW:
1119
1065
case AVAHI_BROWSER_CACHE_EXHAUSTED:
1120
1066
if(debug){
1121
fprintf(stderr, "Mandos plugin mandos-client: "
1122
"No Mandos server found, still searching...\n");
1067
fprintf(stderr, "No Mandos server found, still searching...\n");
1123
1068
}
1124
1069
break;
1125
1070
}
1140
1085
errno = old_errno;
1141
1086
}
1142
1087
1143
bool get_flags(const char *ifname, struct ifreq *ifr){
1144
int ret;
1145
1146
int s = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1147
if(s < 0){
1148
perror_plus("socket");
1149
return false;
1150
}
1151
strcpy(ifr->ifr_name, ifname);
1152
ret = ioctl(s, SIOCGIFFLAGS, ifr);
1153
if(ret == -1){
1088
/*
1089
* This function determines if a directory entry in /sys/class/net
1090
* corresponds to an acceptable network device.
1091
* (This function is passed to scandir(3) as a filter function.)
1092
*/
1093
int good_interface(const struct dirent *if_entry){
1094
ssize_t ssret;
1095
char *flagname = NULL;
1096
if(if_entry->d_name[0] == '.'){
1097
return 0;
1098
}
1099
int ret = asprintf(&flagname, "%s/%s/flags", sys_class_net,
1100
if_entry->d_name);
1101
if(ret < 0){
1102
perror_plus("asprintf");
1103
return 0;
1104
}
1105
int flags_fd = (int)TEMP_FAILURE_RETRY(open(flagname, O_RDONLY));
1106
if(flags_fd == -1){
1107
perror_plus("open");
1108
free(flagname);
1109
return 0;
1110
}
1111
free(flagname);
1112
typedef short ifreq_flags; /* ifreq.ifr_flags in netdevice(7) */
1113
/* read line from flags_fd */
1114
ssize_t to_read = 2+(sizeof(ifreq_flags)*2)+1; /* "0x1003\n" */
1115
char *flagstring = malloc((size_t)to_read+1); /* +1 for final \0 */
1116
flagstring[(size_t)to_read] = '\0';
1117
if(flagstring == NULL){
1118
perror_plus("malloc");
1119
close(flags_fd);
1120
return 0;
1121
}
1122
while(to_read > 0){
1123
ssret = (ssize_t)TEMP_FAILURE_RETRY(read(flags_fd, flagstring,
1124
(size_t)to_read));
1125
if(ssret == -1){
1126
perror_plus("read");
1127
free(flagstring);
1128
close(flags_fd);
1129
return 0;
1130
}
1131
to_read -= ssret;
1132
if(ssret == 0){
1133
break;
1134
}
1135
}
1136
close(flags_fd);
1137
intmax_t tmpmax;
1138
char *tmp;
1139
errno = 0;
1140
tmpmax = strtoimax(flagstring, &tmp, 0);
1141
if(errno != 0 or tmp == flagstring or (*tmp != '\0'
1142
and not (isspace(*tmp)))
1143
or tmpmax != (ifreq_flags)tmpmax){
1154
1144
if(debug){
1155
perror_plus("ioctl SIOCGIFFLAGS");
1145
fprintf(stderr, "Invalid flags \"%s\" for interface \"%s\"\n",
1146
flagstring, if_entry->d_name);
1156
1147
}
1157
return false;
1148
free(flagstring);
1149
return 0;
1158
1150
}
1159
return true;
1160
}
1161
1162
bool good_flags(const char *ifname, const struct ifreq *ifr){
1163
1151
free(flagstring);
1152
ifreq_flags flags = (ifreq_flags)tmpmax;
1164
1153
/* Reject the loopback device */
1165
if(ifr->ifr_flags & IFF_LOOPBACK){
1154
if(flags & IFF_LOOPBACK){
1166
1155
if(debug){
1167
fprintf(stderr, "Mandos plugin mandos-client: "
1168
"Rejecting loopback interface \"%s\"\n", ifname);
1156
fprintf(stderr, "Rejecting loopback interface \"%s\"\n",
1157
if_entry->d_name);
1169
1158
}
1170
return false;
1159
return 0;
1171
1160
}
1172
1161
/* Accept point-to-point devices only if connect_to is specified */
1173
if(connect_to != NULL and (ifr->ifr_flags & IFF_POINTOPOINT)){
1162
if(connect_to != NULL and (flags & IFF_POINTOPOINT)){
1174
1163
if(debug){
1175
fprintf(stderr, "Mandos plugin mandos-client: "
1176
"Accepting point-to-point interface \"%s\"\n", ifname);
1164
fprintf(stderr, "Accepting point-to-point interface \"%s\"\n",
1165
if_entry->d_name);
1177
1166
}
1178
return true;
1167
return 1;
1179
1168
}
1180
1169
/* Otherwise, reject non-broadcast-capable devices */
1181
if(not (ifr->ifr_flags & IFF_BROADCAST)){
1170
if(not (flags & IFF_BROADCAST)){
1182
1171
if(debug){
1183
fprintf(stderr, "Mandos plugin mandos-client: "
1184
"Rejecting non-broadcast interface \"%s\"\n", ifname);
1172
fprintf(stderr, "Rejecting non-broadcast interface \"%s\"\n",
1173
if_entry->d_name);
1185
1174
}
1186
return false;
1175
return 0;
1187
1176
}
1188
1177
/* Reject non-ARP interfaces (including dummy interfaces) */
1189
if(ifr->ifr_flags & IFF_NOARP){
1178
if(flags & IFF_NOARP){
1190
1179
if(debug){
1191
fprintf(stderr, "Mandos plugin mandos-client: "
1192
"Rejecting non-ARP interface \"%s\"\n", ifname);
1180
fprintf(stderr, "Rejecting non-ARP interface \"%s\"\n",
1181
if_entry->d_name);
1193
1182
}
1194
return false;
1183
return 0;
1195
1184
}
1196
1197
1185
/* Accept this device */
1198
1186
if(debug){
1199
fprintf(stderr, "Mandos plugin mandos-client: "
1200
"Interface \"%s\" is good\n", ifname);
1201
}
1202
return true;
1203
}
1204
1205
/*
1206
* This function determines if a directory entry in /sys/class/net
1207
* corresponds to an acceptable network device.
1208
* (This function is passed to scandir(3) as a filter function.)
1209
*/
1210
int good_interface(const struct dirent *if_entry){
1211
if(if_entry->d_name[0] == '.'){
1212
return 0;
1213
}
1214
1215
struct ifreq ifr;
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
}
1222
return 0;
1223
}
1224
1225
if(not good_flags(if_entry->d_name, &ifr)){
1226
return 0;
1227
}
1228
return 1;
1229
}
1230
1231
/*
1232
* This function determines if a directory entry in /sys/class/net
1233
* corresponds to an acceptable network device which is up.
1234
* (This function is passed to scandir(3) as a filter function.)
1235
*/
1236
int up_interface(const struct dirent *if_entry){
1237
if(if_entry->d_name[0] == '.'){
1238
return 0;
1239
}
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",
1246
if_entry->d_name);
1247
}
1248
return 0;
1249
}
1250
1251
/* Reject down interfaces */
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;
1187
fprintf(stderr, "Interface \"%s\" is acceptable\n",
1188
if_entry->d_name);
1273
1189
}
1274
1190
return 1;
1275
1191
}
1285
1201
return 1;
1286
1202
}
1287
1203
1288
/* Is this directory entry a runnable program? */
1289
int runnable_hook(const struct dirent *direntry){
1290
int ret;
1291
size_t sret;
1292
struct stat st;
1293
1294
if((direntry->d_name)[0] == '\0'){
1295
/* Empty name? */
1296
return 0;
1297
}
1298
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);
1321
if(ret == -1){
1322
if(debug){
1323
perror_plus("Could not stat hook");
1324
}
1325
return 0;
1326
}
1327
if(not (S_ISREG(st.st_mode))){
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
}
1334
return 0;
1335
}
1336
if(not (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))){
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
}
1343
return 0;
1344
}
1345
return 1;
1346
}
1347
1348
1204
int avahi_loop_with_timeout(AvahiSimplePoll *s, int retry_interval){
1349
1205
int ret;
1350
1206
struct timespec now;
1354
1210
while(true){
1355
1211
if(mc.current_server == NULL){
1356
1212
if (debug){
1357
fprintf(stderr, "Mandos plugin mandos-client: "
1213
fprintf(stderr,
1358
1214
"Wait until first server is found. No timeout!\n");
1359
1215
}
1360
1216
ret = avahi_simple_poll_iterate(s, -1);
1361
1217
} else {
1362
1218
if (debug){
1363
fprintf(stderr, "Mandos plugin mandos-client: "
1364
"Check current_server if we should run it,"
1219
fprintf(stderr, "Check current_server if we should run it,"
1365
1220
" or wait\n");
1366
1221
}
1367
1222
/* the current time */
1384
1239
- ((intmax_t)waited_time.tv_nsec / 1000000));
1385
1240
1386
1241
if (debug){
1387
fprintf(stderr, "Mandos plugin mandos-client: "
1388
"Blocking for %" PRIdMAX " ms\n", block_time);
1242
fprintf(stderr, "Blocking for %" PRIdMAX " ms\n", block_time);
1389
1243
}
1390
1244
1391
1245
if(block_time <= 0){
1411
1265
ret = avahi_simple_poll_iterate(s, (int)block_time);
1412
1266
}
1413
1267
if(ret != 0){
1414
if (ret > 0 or errno != EINTR){
1268
if (ret > 0 or errno != EINTR) {
1415
1269
return (ret != 1) ? ret : 0;
1416
1270
}
1417
1271
}
1505
1359
.arg = "SECONDS",
1506
1360
.doc = "Retry interval used when denied by the mandos server",
1507
1361
.group = 2 },
1508
{ .name = "network-hook-dir", .key = 133,
1509
.arg = "DIR",
1510
.doc = "Directory where network hooks are located",
1511
.group = 2 },
1512
1362
/*
1513
1363
* These reproduce what we would get without ARGP_NO_HELP
1514
1364
*/
1567
1417
argp_error(state, "Bad retry interval");
1568
1418
}
1569
1419
break;
1570
case 133: /* --network-hook-dir */
1571
hookdir = arg;
1572
break;
1573
1420
/*
1574
1421
* These reproduce what we would get without ARGP_NO_HELP
1575
1422
*/
1581
1428
argp_state_help(state, state->out_stream,
1582
1429
ARGP_HELP_USAGE | ARGP_HELP_EXIT_ERR);
1583
1430
case 'V': /* --version */
1584
fprintf(state->out_stream, "Mandos plugin mandos-client: ");
1585
1431
fprintf(state->out_stream, "%s\n", argp_program_version);
1586
1432
exit(argp_err_exit_status);
1587
1433
break;
1672
1518
}
1673
1519
}
1674
1520
1675
/* Find network hooks and run them */
1676
{
1677
struct dirent **direntries;
1678
struct dirent *direntry;
1679
int numhooks = scandir(hookdir, &direntries, runnable_hook,
1680
alphasort);
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);
1771
}
1772
}
1773
1774
1521
if(not debug){
1775
1522
avahi_set_log_function(empty_log);
1776
1523
}
1777
1524
1778
1525
if(interface[0] == '\0'){
1779
1526
struct dirent **direntries;
1780
/* First look for interfaces that are up */
1781
ret = scandir(sys_class_net, &direntries, up_interface,
1527
ret = scandir(sys_class_net, &direntries, good_interface,
1782
1528
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
}
1789
1529
if(ret >= 1){
1790
/* Pick the first interface returned */
1530
/* Pick the first good interface */
1791
1531
interface = strdup(direntries[0]->d_name);
1792
1532
if(debug){
1793
fprintf(stderr, "Mandos plugin mandos-client: "
1794
"Using interface \"%s\"\n", interface);
1533
fprintf(stderr, "Using interface \"%s\"\n", interface);
1795
1534
}
1796
1535
if(interface == NULL){
1797
1536
perror_plus("malloc");
1802
1541
free(direntries);
1803
1542
} else {
1804
1543
free(direntries);
1805
fprintf(stderr, "Mandos plugin mandos-client: "
1806
"Could not find a network interface\n");
1544
fprintf(stderr, "Could not find a network interface\n");
1807
1545
exitcode = EXIT_FAILURE;
1808
1546
goto end;
1809
1547
}
1815
1553
srand((unsigned int) time(NULL));
1816
1554
mc.simple_poll = avahi_simple_poll_new();
1817
1555
if(mc.simple_poll == NULL){
1818
fprintf(stderr, "Mandos plugin mandos-client: "
1819
"Avahi: Failed to create simple poll object.\n");
1556
fprintf(stderr, "Avahi: Failed to create simple poll object.\n");
1820
1557
exitcode = EX_UNAVAILABLE;
1821
1558
goto end;
1822
1559
}
1888
1625
if(strcmp(interface, "none") != 0){
1889
1626
if_index = (AvahiIfIndex) if_nametoindex(interface);
1890
1627
if(if_index == 0){
1891
fprintf(stderr, "Mandos plugin mandos-client: "
1892
"No such interface: \"%s\"\n", interface);
1628
fprintf(stderr, "No such interface: \"%s\"\n", interface);
1893
1629
exitcode = EX_UNAVAILABLE;
1894
1630
goto end;
1895
1631
}
2036
1772
2037
1773
ret = init_gnutls_global(pubkey, seckey);
2038
1774
if(ret == -1){
2039
fprintf(stderr, "Mandos plugin mandos-client: "
2040
"init_gnutls_global failed\n");
1775
fprintf(stderr, "init_gnutls_global failed\n");
2041
1776
exitcode = EX_UNAVAILABLE;
2042
1777
goto end;
2043
1778
} else {
2059
1794
}
2060
1795
2061
1796
if(not init_gpgme(pubkey, seckey, tempdir)){
2062
fprintf(stderr, "Mandos plugin mandos-client: "
2063
"init_gpgme failed\n");
1797
fprintf(stderr, "init_gpgme failed\n");
2064
1798
exitcode = EX_UNAVAILABLE;
2065
1799
goto end;
2066
1800
} else {
2076
1810
/* (Mainly meant for debugging) */
2077
1811
char *address = strrchr(connect_to, ':');
2078
1812
if(address == NULL){
2079
fprintf(stderr, "Mandos plugin mandos-client: "
2080
"No colon in address\n");
1813
fprintf(stderr, "No colon in address\n");
2081
1814
exitcode = EX_USAGE;
2082
1815
goto end;
2083
1816
}
2091
1824
tmpmax = strtoimax(address+1, &tmp, 10);
2092
1825
if(errno != 0 or tmp == address+1 or *tmp != '\0'
2093
1826
or tmpmax != (uint16_t)tmpmax){
2094
fprintf(stderr, "Mandos plugin mandos-client: "
2095
"Bad port number\n");
1827
fprintf(stderr, "Bad port number\n");
2096
1828
exitcode = EX_USAGE;
2097
1829
goto end;
2098
1830
}
2128
1860
break;
2129
1861
}
2130
1862
if(debug){
2131
fprintf(stderr, "Mandos plugin mandos-client: "
2132
"Retrying in %d seconds\n", (int)retry_interval);
1863
fprintf(stderr, "Retrying in %d seconds\n",
1864
(int)retry_interval);
2133
1865
}
2134
1866
sleep((int)retry_interval);
2135
1867
}
2137
1869
if (not quit_now){
2138
1870
exitcode = EXIT_SUCCESS;
2139
1871
}
2140
1872
2141
1873
goto end;
2142
1874
}
2143
1875
2165
1897
2166
1898
/* Check if creating the Avahi server object succeeded */
2167
1899
if(mc.server == NULL){
2168
fprintf(stderr, "Mandos plugin mandos-client: "
2169
"Failed to create Avahi server: %s\n",
1900
fprintf(stderr, "Failed to create Avahi server: %s\n",
2170
1901
avahi_strerror(error));
2171
1902
exitcode = EX_UNAVAILABLE;
2172
1903
goto end;
2181
1912
AVAHI_PROTO_UNSPEC, "_mandos._tcp",
2182
1913
NULL, 0, browse_callback, NULL);
2183
1914
if(sb == NULL){
2184
fprintf(stderr, "Mandos plugin mandos-client: "
2185
"Failed to create service browser: %s\n",
1915
fprintf(stderr, "Failed to create service browser: %s\n",
2186
1916
avahi_strerror(avahi_server_errno(mc.server)));
2187
1917
exitcode = EX_UNAVAILABLE;
2188
1918
goto end;
2195
1925
/* Run the main loop */
2196
1926
2197
1927
if(debug){
2198
fprintf(stderr, "Mandos plugin mandos-client: "
2199
"Starting Avahi loop search\n");
1928
fprintf(stderr, "Starting Avahi loop search\n");
2200
1929
}
2201
1930
2202
1931
ret = avahi_loop_with_timeout(mc.simple_poll,
2203
1932
(int)(retry_interval * 1000));
2204
1933
if(debug){
2205
fprintf(stderr, "Mandos plugin mandos-client: "
2206
"avahi_loop_with_timeout exited %s\n",
1934
fprintf(stderr, "avahi_loop_with_timeout exited %s\n",
2207
1935
(ret == 0) ? "successfully" : "with error");
2208
1936
}
2209
1937
2210
1938
end:
2211
1939
2212
1940
if(debug){
2213
fprintf(stderr, "Mandos plugin mandos-client: "
2214
"%s exiting\n", argv[0]);
1941
fprintf(stderr, "%s exiting\n", argv[0]);
2215
1942
}
2216
1943
2217
1944
/* Cleanup things */
2245
1972
}
2246
1973
}
2247
1974
2248
/* XXX run network hooks "stop" here */
2249
2250
1975
/* Take down the network interface */
2251
1976
if(take_down_interface){
2252
1977
/* Re-raise priviliges */
2259
1984
ret = ioctl(sd, SIOCGIFFLAGS, &network);
2260
1985
if(ret == -1){
2261
1986
perror_plus("ioctl SIOCGIFFLAGS");
2262
} else if(network.ifr_flags & IFF_UP){
1987
} else if(network.ifr_flags & IFF_UP) {
2263
1988
network.ifr_flags &= ~(short)IFF_UP; /* clear flag */
2264
1989
ret = ioctl(sd, SIOCSIFFLAGS, &network);
2265
1990
if(ret == -1){
2297
2022
}
2298
2023
ret = remove(fullname);
2299
2024
if(ret == -1){
2300
fprintf(stderr, "Mandos plugin mandos-client: "
2301
"remove(\"%s\"): %s\n", fullname, strerror(errno));
2025
fprintf(stderr, "remove(\"%s\"): %s\n", fullname,
2026
strerror(errno));
2302
2027
}
2303
2028
free(fullname);
2304
2029
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0