174
174
perror(print_text);
177
int fprintf_plus(FILE *stream, const char *format, ...){
179
va_start (ap, format);
181
TEMP_FAILURE_RETRY(fprintf(stream, "Mandos plugin %s: ",
182
program_invocation_short_name));
183
return TEMP_FAILURE_RETRY(vfprintf(stream, format, ap));
178
187
* Make additional room in "buffer" for at least BUFFER_SIZE more
179
188
* bytes. "buffer_capacity" is how much is currently allocated,
180
189
* "buffer_length" is how much is already used.
182
191
size_t incbuffer(char **buffer, size_t buffer_length,
183
size_t buffer_capacity){
192
size_t buffer_capacity){
184
193
if(buffer_length + BUFFER_SIZE > buffer_capacity){
185
194
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
186
195
if(buffer == NULL){
255
263
rc = gpgme_data_new_from_fd(&pgp_data, fd);
256
264
if(rc != GPG_ERR_NO_ERROR){
257
fprintf(stderr, "Mandos plugin mandos-client: "
258
"bad gpgme_data_new_from_fd: %s: %s\n",
259
gpgme_strsource(rc), gpgme_strerror(rc));
265
fprintf_plus(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
266
gpgme_strsource(rc), gpgme_strerror(rc));
263
270
rc = gpgme_op_import(mc.ctx, pgp_data);
264
271
if(rc != GPG_ERR_NO_ERROR){
265
fprintf(stderr, "Mandos plugin mandos-client: "
266
"bad gpgme_op_import: %s: %s\n",
267
gpgme_strsource(rc), gpgme_strerror(rc));
272
fprintf_plus(stderr, "bad gpgme_op_import: %s: %s\n",
273
gpgme_strsource(rc), gpgme_strerror(rc));
280
fprintf(stderr, "Mandos plugin mandos-client: "
281
"Initializing GPGME\n");
286
fprintf_plus(stderr, "Initializing GPGME\n");
285
290
gpgme_check_version(NULL);
286
291
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
287
292
if(rc != GPG_ERR_NO_ERROR){
288
fprintf(stderr, "Mandos plugin mandos-client: "
289
"bad gpgme_engine_check_version: %s: %s\n",
290
gpgme_strsource(rc), gpgme_strerror(rc));
293
fprintf_plus(stderr, "bad gpgme_engine_check_version: %s: %s\n",
294
gpgme_strsource(rc), gpgme_strerror(rc));
294
298
/* Set GPGME home directory for the OpenPGP engine only */
295
299
rc = gpgme_get_engine_info(&engine_info);
296
300
if(rc != GPG_ERR_NO_ERROR){
297
fprintf(stderr, "Mandos plugin mandos-client: "
298
"bad gpgme_get_engine_info: %s: %s\n",
299
gpgme_strsource(rc), gpgme_strerror(rc));
301
fprintf_plus(stderr, "bad gpgme_get_engine_info: %s: %s\n",
302
gpgme_strsource(rc), gpgme_strerror(rc));
302
305
while(engine_info != NULL){
308
311
engine_info = engine_info->next;
310
313
if(engine_info == NULL){
311
fprintf(stderr, "Mandos plugin mandos-client: "
312
"Could not set GPGME home dir to %s\n", tempdir);
314
fprintf_plus(stderr, "Could not set GPGME home dir to %s\n",
316
319
/* Create new GPGME "context" */
317
320
rc = gpgme_new(&(mc.ctx));
318
321
if(rc != GPG_ERR_NO_ERROR){
319
fprintf(stderr, "Mandos plugin mandos-client: "
320
"bad gpgme_new: %s: %s\n", gpgme_strsource(rc),
322
fprintf_plus(stderr, "Mandos plugin mandos-client: "
323
"bad gpgme_new: %s: %s\n", gpgme_strsource(rc),
343
346
ssize_t plaintext_length = 0;
346
fprintf(stderr, "Mandos plugin mandos-client: "
347
"Trying to decrypt OpenPGP data\n");
349
fprintf_plus(stderr, "Trying to decrypt OpenPGP data\n");
350
352
/* Create new GPGME data buffer from memory cryptotext */
351
353
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
353
355
if(rc != GPG_ERR_NO_ERROR){
354
fprintf(stderr, "Mandos plugin mandos-client: "
355
"bad gpgme_data_new_from_mem: %s: %s\n",
356
gpgme_strsource(rc), gpgme_strerror(rc));
356
fprintf_plus(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
357
gpgme_strsource(rc), gpgme_strerror(rc));
360
361
/* Create new empty GPGME data buffer for the plaintext */
361
362
rc = gpgme_data_new(&dh_plain);
362
363
if(rc != GPG_ERR_NO_ERROR){
363
fprintf(stderr, "Mandos plugin mandos-client: "
364
"bad gpgme_data_new: %s: %s\n",
365
gpgme_strsource(rc), gpgme_strerror(rc));
364
fprintf_plus(stderr, "Mandos plugin mandos-client: "
365
"bad gpgme_data_new: %s: %s\n",
366
gpgme_strsource(rc), gpgme_strerror(rc));
366
367
gpgme_data_release(dh_crypto);
372
373
rc = gpgme_op_decrypt(mc.ctx, dh_crypto, dh_plain);
373
374
if(rc != GPG_ERR_NO_ERROR){
374
fprintf(stderr, "Mandos plugin mandos-client: "
375
"bad gpgme_op_decrypt: %s: %s\n",
376
gpgme_strsource(rc), gpgme_strerror(rc));
375
fprintf_plus(stderr, "bad gpgme_op_decrypt: %s: %s\n",
376
gpgme_strsource(rc), gpgme_strerror(rc));
377
377
plaintext_length = -1;
379
379
gpgme_decrypt_result_t result;
380
380
result = gpgme_op_decrypt_result(mc.ctx);
381
381
if(result == NULL){
382
fprintf(stderr, "Mandos plugin mandos-client: "
383
"gpgme_op_decrypt_result failed\n");
382
fprintf_plus(stderr, "gpgme_op_decrypt_result failed\n");
385
fprintf(stderr, "Mandos plugin mandos-client: "
386
"Unsupported algorithm: %s\n",
387
result->unsupported_algorithm);
388
fprintf(stderr, "Mandos plugin mandos-client: "
389
"Wrong key usage: %u\n",
390
result->wrong_key_usage);
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);
391
388
if(result->file_name != NULL){
392
fprintf(stderr, "Mandos plugin mandos-client: "
393
"File name: %s\n", result->file_name);
389
fprintf_plus(stderr, "File name: %s\n", result->file_name);
395
391
gpgme_recipient_t recipient;
396
392
recipient = result->recipients;
397
393
while(recipient != NULL){
398
fprintf(stderr, "Mandos plugin mandos-client: "
399
"Public key algorithm: %s\n",
400
gpgme_pubkey_algo_name(recipient->pubkey_algo));
401
fprintf(stderr, "Mandos plugin mandos-client: "
402
"Key ID: %s\n", recipient->keyid);
403
fprintf(stderr, "Mandos plugin mandos-client: "
404
"Secret key available: %s\n",
405
recipient->status == GPG_ERR_NO_SECKEY
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
407
401
recipient = recipient->next;
426
419
*plaintext = NULL;
428
421
plaintext_capacity = incbuffer(plaintext,
429
(size_t)plaintext_length,
422
(size_t)plaintext_length,
431
424
if(plaintext_capacity == 0){
432
perror_plus("incbuffer");
433
plaintext_length = -1;
425
perror_plus("incbuffer");
426
plaintext_length = -1;
437
430
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
490
fprintf(stderr, "Mandos plugin mandos-client: "
491
"Initializing GnuTLS\n");
482
fprintf_plus(stderr, "Initializing GnuTLS\n");
494
485
ret = gnutls_global_init();
495
486
if(ret != GNUTLS_E_SUCCESS){
496
fprintf(stderr, "Mandos plugin mandos-client: "
497
"GnuTLS global_init: %s\n", safer_gnutls_strerror(ret));
487
fprintf_plus(stderr, "GnuTLS global_init: %s\n",
488
safer_gnutls_strerror(ret));
509
500
/* OpenPGP credentials */
510
501
ret = gnutls_certificate_allocate_credentials(&mc.cred);
511
502
if(ret != GNUTLS_E_SUCCESS){
512
fprintf(stderr, "Mandos plugin mandos-client: "
513
"GnuTLS memory error: %s\n", safer_gnutls_strerror(ret));
503
fprintf_plus(stderr, "GnuTLS memory error: %s\n",
504
safer_gnutls_strerror(ret));
514
505
gnutls_global_deinit();
519
fprintf(stderr, "Mandos plugin mandos-client: "
520
"Attempting to use OpenPGP public key %s and"
521
" secret key %s as GnuTLS credentials\n", pubkeyfilename,
510
fprintf_plus(stderr, "Attempting to use OpenPGP public key %s and"
511
" secret key %s as GnuTLS credentials\n",
525
516
ret = gnutls_certificate_set_openpgp_key_file
526
517
(mc.cred, pubkeyfilename, seckeyfilename,
527
518
GNUTLS_OPENPGP_FMT_BASE64);
528
519
if(ret != GNUTLS_E_SUCCESS){
530
"Mandos plugin mandos-client: "
531
"Error[%d] while reading the OpenPGP key pair ('%s',"
532
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
533
fprintf(stderr, "Mandos plugin mandos-client: "
534
"The GnuTLS error is: %s\n", safer_gnutls_strerror(ret));
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));
538
528
/* GnuTLS server initialization */
539
529
ret = gnutls_dh_params_init(&mc.dh_params);
540
530
if(ret != GNUTLS_E_SUCCESS){
541
fprintf(stderr, "Mandos plugin mandos-client: "
542
"Error in GnuTLS DH parameter initialization:"
543
" %s\n", safer_gnutls_strerror(ret));
531
fprintf_plus(stderr, "Error in GnuTLS DH parameter"
532
" initialization: %s\n",
533
safer_gnutls_strerror(ret));
546
536
ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
547
537
if(ret != GNUTLS_E_SUCCESS){
548
fprintf(stderr, "Mandos plugin mandos-client: "
549
"Error in GnuTLS prime generation: %s\n",
550
safer_gnutls_strerror(ret));
538
fprintf_plus(stderr, "Error in GnuTLS prime generation: %s\n",
539
safer_gnutls_strerror(ret));
574
563
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
575
564
if(ret != GNUTLS_E_SUCCESS){
576
fprintf(stderr, "Mandos plugin mandos-client: "
577
"Error in GnuTLS session initialization: %s\n",
578
safer_gnutls_strerror(ret));
566
"Error in GnuTLS session initialization: %s\n",
567
safer_gnutls_strerror(ret));
589
578
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
590
579
if(ret != GNUTLS_E_SUCCESS){
591
fprintf(stderr, "Mandos plugin mandos-client: "
592
"Syntax error at: %s\n", err);
593
fprintf(stderr, "Mandos plugin mandos-client: "
594
"GnuTLS error: %s\n", safer_gnutls_strerror(ret));
580
fprintf_plus(stderr, "Syntax error at: %s\n", err);
581
fprintf_plus(stderr, "GnuTLS error: %s\n",
582
safer_gnutls_strerror(ret));
595
583
gnutls_deinit(*session);
607
595
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
608
596
if(ret != GNUTLS_E_SUCCESS){
609
fprintf(stderr, "Mandos plugin mandos-client: "
610
"Error setting GnuTLS credentials: %s\n",
611
safer_gnutls_strerror(ret));
597
fprintf_plus(stderr, "Error setting GnuTLS credentials: %s\n",
598
safer_gnutls_strerror(ret));
612
599
gnutls_deinit(*session);
718
702
if(IN6_IS_ADDR_LINKLOCAL /* Spurious warnings from */
719
703
(&to.in6.sin6_addr)){ /* -Wstrict-aliasing=2 or lower and
721
705
if(if_index == AVAHI_IF_UNSPEC){
722
fprintf(stderr, "Mandos plugin mandos-client: "
723
"An IPv6 link-local address is incomplete"
724
" without a network interface\n");
706
fprintf_plus(stderr, "An IPv6 link-local address is"
707
" incomplete without a network interface\n");
745
728
if(if_indextoname((unsigned int)if_index, interface) == NULL){
746
729
perror_plus("if_indextoname");
748
fprintf(stderr, "Mandos plugin mandos-client: "
749
"Connection to: %s%%%s, port %" PRIu16 "\n",
750
ip, interface, port);
731
fprintf_plus(stderr, "Connection to: %s%%%s, port %" PRIu16
732
"\n", ip, interface, port);
753
fprintf(stderr, "Mandos plugin mandos-client: "
754
"Connection to: %s, port %" PRIu16 "\n", ip, port);
735
fprintf_plus(stderr, "Connection to: %s, port %" PRIu16 "\n",
756
738
char addrstr[(INET_ADDRSTRLEN > INET6_ADDRSTRLEN) ?
757
739
INET_ADDRSTRLEN : INET6_ADDRSTRLEN] = "";
912
891
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
914
fprintf(stderr, "Mandos plugin mandos-client: "
915
"*** GnuTLS Re-handshake failed ***\n");
893
fprintf_plus(stderr, "*** GnuTLS Re-handshake failed "
916
895
gnutls_perror(ret);
922
fprintf(stderr, "Mandos plugin mandos-client: "
923
"Unknown error while reading data from"
924
" encrypted session with Mandos server\n");
901
fprintf_plus(stderr, "Unknown error while reading data from"
902
" encrypted session with Mandos server\n");
925
903
gnutls_bye(session, GNUTLS_SHUT_RDWR);
1036
1011
case AVAHI_RESOLVER_FAILURE:
1037
fprintf(stderr, "Mandos plugin mandos-client: "
1038
"(Avahi Resolver) Failed to resolve service '%s'"
1039
" of type '%s' in domain '%s': %s\n", name, type, domain,
1040
avahi_strerror(avahi_server_errno(mc.server)));
1012
fprintf_plus(stderr, "(Avahi Resolver) Failed to resolve service "
1013
"'%s' of type '%s' in domain '%s': %s\n", name, type,
1015
avahi_strerror(avahi_server_errno(mc.server)));
1043
1018
case AVAHI_RESOLVER_FOUND:
1045
1020
char ip[AVAHI_ADDRESS_STR_MAX];
1046
1021
avahi_address_snprint(ip, sizeof(ip), address);
1048
fprintf(stderr, "Mandos plugin mandos-client: "
1049
"Mandos server \"%s\" found on %s (%s, %"
1050
PRIdMAX ") on port %" PRIu16 "\n", name, host_name,
1051
ip, (intmax_t)interface, port);
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);
1053
1027
int ret = start_mandos_communication(ip, port, interface,
1054
1028
avahi_proto_to_af(proto));
1101
1074
if(avahi_s_service_resolver_new(mc.server, interface, protocol,
1102
1075
name, type, domain, protocol, 0,
1103
1076
resolve_callback, NULL) == NULL)
1104
fprintf(stderr, "Mandos plugin mandos-client: "
1105
"Avahi: Failed to resolve service '%s': %s\n",
1106
name, avahi_strerror(avahi_server_errno(mc.server)));
1077
fprintf_plus(stderr, "Avahi: Failed to resolve service '%s':"
1079
avahi_strerror(avahi_server_errno(mc.server)));
1109
1082
case AVAHI_BROWSER_REMOVE:
1158
1131
/* Reject the loopback device */
1159
1132
if(ifr->ifr_flags & IFF_LOOPBACK){
1161
fprintf(stderr, "Mandos plugin mandos-client: "
1162
"Rejecting loopback interface \"%s\"\n", ifname);
1134
fprintf_plus(stderr, "Rejecting loopback interface \"%s\"\n",
1166
1139
/* Accept point-to-point devices only if connect_to is specified */
1167
1140
if(connect_to != NULL and (ifr->ifr_flags & IFF_POINTOPOINT)){
1169
fprintf(stderr, "Mandos plugin mandos-client: "
1170
"Accepting point-to-point interface \"%s\"\n", ifname);
1142
fprintf_plus(stderr, "Accepting point-to-point interface"
1143
" \"%s\"\n", ifname);
1174
1147
/* Otherwise, reject non-broadcast-capable devices */
1175
1148
if(not (ifr->ifr_flags & IFF_BROADCAST)){
1177
fprintf(stderr, "Mandos plugin mandos-client: "
1178
"Rejecting non-broadcast interface \"%s\"\n", ifname);
1150
fprintf_plus(stderr, "Rejecting non-broadcast interface"
1151
" \"%s\"\n", ifname);
1182
1155
/* Reject non-ARP interfaces (including dummy interfaces) */
1183
1156
if(ifr->ifr_flags & IFF_NOARP){
1185
fprintf(stderr, "Mandos plugin mandos-client: "
1186
"Rejecting non-ARP interface \"%s\"\n", ifname);
1158
fprintf_plus(stderr, "Rejecting non-ARP interface \"%s\"\n",
1191
1164
/* Accept this device */
1193
fprintf(stderr, "Mandos plugin mandos-client: "
1194
"Interface \"%s\" is good\n", ifname);
1166
fprintf_plus(stderr, "Interface \"%s\" is good\n", ifname);
1292
/* Save pointer to last character */
1293
char *end = strchr(direntry->d_name, '\0')-1;
1300
if(((direntry->d_name)[0] == '#')
1302
/* Temporary #name# */
1306
/* XXX more rules here */
1261
sret = strspn(direntry->d_name, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
1262
"abcdefghijklmnopqrstuvwxyz"
1265
if((direntry->d_name)[sret] != '\0'){
1266
/* Contains non-allowed characters */
1268
fprintf_plus(stderr, "Ignoring hook \"%s\" with bad name\n",
1308
1274
char *fullname = NULL;
1309
ret = asprintf(&fullname, "%s/%s", hookdir,
1275
ret = asprintf(&fullname, "%s/%s", hookdir, direntry->d_name);
1312
1277
perror_plus("asprintf");
1316
1281
ret = stat(fullname, &st);
1319
perror_plus("Could not stat plugin");
1284
perror_plus("Could not stat hook");
1323
1288
if(not (S_ISREG(st.st_mode))){
1324
1289
/* Not a regular file */
1291
fprintf_plus(stderr, "Ignoring hook \"%s\" - not a file\n",
1327
1296
if(not (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))){
1328
1297
/* Not executable */
1299
fprintf_plus(stderr, "Ignoring hook \"%s\" - not executable\n",
1341
1314
if(mc.current_server == NULL){
1343
fprintf(stderr, "Mandos plugin mandos-client: "
1344
"Wait until first server is found. No timeout!\n");
1316
fprintf_plus(stderr, "Wait until first server is found."
1346
1319
ret = avahi_simple_poll_iterate(s, -1);
1349
fprintf(stderr, "Mandos plugin mandos-client: "
1350
"Check current_server if we should run it,"
1322
fprintf_plus(stderr, "Check current_server if we should run"
1353
1325
/* the current time */
1354
1326
ret = clock_gettime(CLOCK_MONOTONIC, &now);
1379
bool run_network_hooks(const char *mode, const char *interface,
1381
struct dirent **direntries;
1382
struct dirent *direntry;
1384
int numhooks = scandir(hookdir, &direntries, runnable_hook,
1387
perror_plus("scandir");
1389
int devnull = open("/dev/null", O_RDONLY);
1390
for(int i = 0; i < numhooks; i++){
1391
direntry = direntries[i];
1392
char *fullname = NULL;
1393
ret = asprintf(&fullname, "%s/%s", hookdir, direntry->d_name);
1395
perror_plus("asprintf");
1399
fprintf_plus(stderr, "Running network hook \"%s\"\n",
1402
pid_t hook_pid = fork();
1405
dup2(devnull, STDIN_FILENO);
1407
dup2(STDERR_FILENO, STDOUT_FILENO);
1408
ret = setenv("MANDOSNETHOOKDIR", hookdir, 1);
1410
perror_plus("setenv");
1413
ret = setenv("DEVICE", interface, 1);
1415
perror_plus("setenv");
1418
ret = setenv("VERBOSE", debug ? "1" : "0", 1);
1420
perror_plus("setenv");
1423
ret = setenv("MODE", mode, 1);
1425
perror_plus("setenv");
1429
ret = asprintf(&delaystring, "%f", delay);
1431
perror_plus("asprintf");
1434
ret = setenv("DELAY", delaystring, 1);
1437
perror_plus("setenv");
1441
ret = execl(fullname, direntry->d_name, mode, NULL);
1442
perror_plus("execl");
1445
if(TEMP_FAILURE_RETRY(waitpid(hook_pid, &status, 0)) == -1){
1446
perror_plus("waitpid");
1450
if(WIFEXITED(status)){
1451
if(WEXITSTATUS(status) != 0){
1452
fprintf_plus(stderr, "Warning: network hook \"%s\" exited"
1453
" with status %d\n", direntry->d_name,
1454
WEXITSTATUS(status));
1458
} else if(WIFSIGNALED(status)){
1459
fprintf_plus(stderr, "Warning: network hook \"%s\" died by"
1460
" signal %d\n", direntry->d_name,
1465
fprintf_plus(stderr, "Warning: network hook \"%s\""
1466
" crashed\n", direntry->d_name);
1407
1481
int main(int argc, char *argv[]){
1408
1482
AvahiSServiceBrowser *sb = NULL;
1567
1641
argp_state_help(state, state->out_stream,
1568
1642
ARGP_HELP_USAGE | ARGP_HELP_EXIT_ERR);
1569
1643
case 'V': /* --version */
1570
fprintf(state->out_stream, "Mandos plugin mandos-client: ");
1571
fprintf(state->out_stream, "%s\n", argp_program_version);
1644
fprintf_plus(state->out_stream,
1645
"Mandos plugin mandos-client: ");
1646
fprintf_plus(state->out_stream, "%s\n", argp_program_version);
1572
1647
exit(argp_err_exit_status);
1661
/* Find network hooks and run them */
1738
/* Run network hooks */
1663
struct dirent **direntries;
1664
struct dirent *direntry;
1665
int numhooks = scandir(hookdir, &direntries, runnable_hook,
1668
perror_plus("scandir");
1670
int devnull = open("/dev/null", O_RDONLY);
1671
for(int i = 0; i < numhooks; i++){
1672
direntry = direntries[0];
1673
char *fullname = NULL;
1674
ret = asprintf(&fullname, "%s/%s", hookdir, direntry->d_name);
1676
perror_plus("asprintf");
1679
pid_t hook_pid = fork();
1682
dup2(devnull, STDIN_FILENO);
1684
dup2(STDERR_FILENO, STDOUT_FILENO);
1685
ret = setenv("DEVICE", interface, 1);
1687
perror_plus("setenv");
1690
ret = setenv("VERBOSE", debug ? "1" : "0", 1);
1692
perror_plus("setenv");
1695
ret = setenv("MODE", "start", 1);
1697
perror_plus("setenv");
1701
ret = asprintf(&delaystring, "%f", delay);
1703
perror_plus("asprintf");
1706
ret = setenv("DELAY", delaystring, 1);
1709
perror_plus("setenv");
1713
ret = execl(fullname, direntry->d_name, "start", NULL);
1714
perror_plus("execl");
1717
if(TEMP_FAILURE_RETRY(waitpid(hook_pid, &status, 0)) == -1){
1718
perror_plus("waitpid");
1722
if(WIFEXITED(status)){
1723
if(WEXITSTATUS(status) != 0){
1724
fprintf(stderr, "Mandos plugin mandos-client: "
1725
"Warning: network hook \"%s\" exited"
1726
" with status %d\n", direntry->d_name,
1727
WEXITSTATUS(status));
1731
} else if(WIFSIGNALED(status)){
1732
fprintf(stderr, "Mandos plugin mandos-client: "
1733
"Warning: network hook \"%s\" died by"
1734
" signal %d\n", direntry->d_name,
1739
fprintf(stderr, "Mandos plugin mandos-client: "
1740
"Warning: network hook \"%s\" crashed\n",
1741
/* Re-raise priviliges */
1745
perror_plus("seteuid");
1748
if(not run_network_hooks("start", interface, delay)){
1752
/* Lower privileges */
1756
perror_plus("seteuid");
1869
1873
if(strcmp(interface, "none") != 0){
1870
1874
if_index = (AvahiIfIndex) if_nametoindex(interface);
1871
1875
if(if_index == 0){
1872
fprintf(stderr, "Mandos plugin mandos-client: "
1873
"No such interface: \"%s\"\n", interface);
1876
fprintf_plus(stderr, "No such interface: \"%s\"\n", interface);
1874
1877
exitcode = EX_UNAVAILABLE;
2162
2152
AVAHI_PROTO_UNSPEC, "_mandos._tcp",
2163
2153
NULL, 0, browse_callback, NULL);
2164
2154
if(sb == NULL){
2165
fprintf(stderr, "Mandos plugin mandos-client: "
2166
"Failed to create service browser: %s\n",
2167
avahi_strerror(avahi_server_errno(mc.server)));
2155
fprintf_plus(stderr, "Failed to create service browser: %s\n",
2156
avahi_strerror(avahi_server_errno(mc.server)));
2168
2157
exitcode = EX_UNAVAILABLE;
2176
2165
/* Run the main loop */
2179
fprintf(stderr, "Mandos plugin mandos-client: "
2180
"Starting Avahi loop search\n");
2168
fprintf_plus(stderr, "Starting Avahi loop search\n");
2183
2171
ret = avahi_loop_with_timeout(mc.simple_poll,
2184
2172
(int)(retry_interval * 1000));
2186
fprintf(stderr, "Mandos plugin mandos-client: "
2187
"avahi_loop_with_timeout exited %s\n",
2188
(ret == 0) ? "successfully" : "with error");
2174
fprintf_plus(stderr, "avahi_loop_with_timeout exited %s\n",
2175
(ret == 0) ? "successfully" : "with error");
2194
fprintf(stderr, "Mandos plugin mandos-client: "
2195
"%s exiting\n", argv[0]);
2181
fprintf_plus(stderr, "%s exiting\n", argv[0]);
2198
2184
/* Cleanup things */
2229
/* XXX run network hooks "stop" here */
2231
/* Take down the network interface */
2232
if(take_down_interface){
2233
/* Re-raise priviliges */
2237
perror_plus("seteuid");
2215
/* Re-raise priviliges */
2221
perror_plus("seteuid");
2224
/* Run network hooks */
2225
if(not run_network_hooks("stop", interface, delay)){
2229
/* Take down the network interface */
2230
if(take_down_interface and geteuid() == 0){
2240
2231
ret = ioctl(sd, SIOCGIFFLAGS, &network);
2242
2233
perror_plus("ioctl SIOCGIFFLAGS");