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- Committer: Teddy Hogeborn
- Date: 2009-09-17 02:42:49 UTC
- Revision ID: teddy@fukt.bsnet.se-20090917024249-y6j76xtzz3i2vptv
* plugins.d/mandos-client.c (init_gnutls_session): Always fail and
return immediately
if interrupted by
signal.
return immediately
if interrupted by
signal.
added
removed
plugins.d/mandos-client.c
43
43
stdout, ferror(), remove() */
44
44
#include <stdint.h> /* uint16_t, uint32_t */
45
45
#include <stddef.h> /* NULL, size_t, ssize_t */
46
#include <stdlib.h> /* free(), EXIT_SUCCESS, srand(),
47
strtof(), abort() */
46
#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,
47
srand(), strtof() */
48
48
#include <stdbool.h> /* bool, false, true */
49
49
#include <string.h> /* memset(), strcmp(), strlen(),
50
50
strerror(), asprintf(), strcpy() */
63
63
strtoimax() */
64
64
#include <assert.h> /* assert() */
65
65
#include <errno.h> /* perror(), errno */
66
#include <time.h> /* nanosleep(), time(), sleep() */
66
#include <time.h> /* nanosleep(), time() */
67
67
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
68
68
SIOCSIFFLAGS, if_indextoname(),
69
69
if_nametoindex(), IF_NAMESIZE */
72
72
*/
73
73
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
74
74
getuid(), getgid(), seteuid(),
75
setgid(), pause() */
75
setgid() */
76
76
#include <arpa/inet.h> /* inet_pton(), htons */
77
77
#include <iso646.h> /* not, or, and */
78
78
#include <argp.h> /* struct argp_option, error_t, struct
82
82
#include <signal.h> /* sigemptyset(), sigaddset(),
83
83
sigaction(), SIGTERM, sig_atomic_t,
84
84
raise() */
85
#include <sysexits.h> /* EX_OSERR, EX_USAGE, EX_UNAVAILABLE,
86
EX_NOHOST, EX_IOERR, EX_PROTOCOL */
87
85
88
86
#ifdef __linux__
89
87
#include <sys/klog.h> /* klogctl() */
127
125
static const char mandos_protocol_version[] = "1";
128
126
const char *argp_program_version = "mandos-client " VERSION;
129
127
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
130
static const char sys_class_net[] = "/sys/class/net";
131
char *connect_to = NULL;
132
128
133
129
/* Used for passing in values through the Avahi callback functions */
134
130
typedef struct {
548
544
struct sockaddr_in6 in6;
549
545
} to;
550
546
char *buffer = NULL;
551
char *decrypted_buffer = NULL;
547
char *decrypted_buffer;
552
548
size_t buffer_length = 0;
553
549
size_t buffer_capacity = 0;
554
550
size_t written;
555
int retval = -1;
551
int retval = 0;
556
552
gnutls_session_t session;
557
553
int pf; /* Protocol family */
558
554
559
errno = 0;
560
561
555
if(quit_now){
562
errno = EINTR;
563
556
return -1;
564
557
}
565
558
572
565
break;
573
566
default:
574
567
fprintf(stderr, "Bad address family: %d\n", af);
575
errno = EINVAL;
576
568
return -1;
577
569
}
578
570
588
580
589
581
tcp_sd = socket(pf, SOCK_STREAM, 0);
590
582
if(tcp_sd < 0){
591
int e = errno;
592
583
perror("socket");
593
errno = e;
584
retval = -1;
594
585
goto mandos_end;
595
586
}
596
587
597
588
if(quit_now){
598
errno = EINTR;
589
retval = -1;
599
590
goto mandos_end;
600
591
}
601
592
608
599
ret = inet_pton(af, ip, &to.in.sin_addr);
609
600
}
610
601
if(ret < 0 ){
611
int e = errno;
612
602
perror("inet_pton");
613
errno = e;
603
retval = -1;
614
604
goto mandos_end;
615
605
}
616
606
if(ret == 0){
617
int e = errno;
618
607
fprintf(stderr, "Bad address: %s\n", ip);
619
errno = e;
608
retval = -1;
620
609
goto mandos_end;
621
610
}
622
611
if(af == AF_INET6){
630
619
if(if_index == AVAHI_IF_UNSPEC){
631
620
fprintf(stderr, "An IPv6 link-local address is incomplete"
632
621
" without a network interface\n");
633
errno = EINVAL;
622
retval = -1;
634
623
goto mandos_end;
635
624
}
636
625
/* Set the network interface number as scope */
643
632
}
644
633
645
634
if(quit_now){
646
errno = EINTR;
635
retval = -1;
647
636
goto mandos_end;
648
637
}
649
638
680
669
}
681
670
682
671
if(quit_now){
683
errno = EINTR;
672
retval = -1;
684
673
goto mandos_end;
685
674
}
686
675
690
679
ret = connect(tcp_sd, &to.in, sizeof(to)); /* IPv4 */
691
680
}
692
681
if(ret < 0){
693
if ((errno != ECONNREFUSED and errno != ENETUNREACH) or debug){
694
int e = errno;
695
perror("connect");
696
errno = e;
697
}
682
perror("connect");
683
retval = -1;
698
684
goto mandos_end;
699
685
}
700
686
701
687
if(quit_now){
702
errno = EINTR;
688
retval = -1;
703
689
goto mandos_end;
704
690
}
705
691
710
696
ret = (int)TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
711
697
out_size - written));
712
698
if(ret == -1){
713
int e = errno;
714
699
perror("write");
715
errno = e;
700
retval = -1;
716
701
goto mandos_end;
717
702
}
718
703
written += (size_t)ret;
728
713
}
729
714
730
715
if(quit_now){
731
errno = EINTR;
716
retval = -1;
732
717
goto mandos_end;
733
718
}
734
719
}
738
723
}
739
724
740
725
if(quit_now){
741
errno = EINTR;
726
retval = -1;
742
727
goto mandos_end;
743
728
}
744
729
745
730
gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) tcp_sd);
746
731
747
732
if(quit_now){
748
errno = EINTR;
733
retval = -1;
749
734
goto mandos_end;
750
735
}
751
736
752
737
do {
753
738
ret = gnutls_handshake(session);
754
739
if(quit_now){
755
errno = EINTR;
740
retval = -1;
756
741
goto mandos_end;
757
742
}
758
743
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
762
747
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
763
748
gnutls_perror(ret);
764
749
}
765
errno = EPROTO;
750
retval = -1;
766
751
goto mandos_end;
767
752
}
768
753
776
761
while(true){
777
762
778
763
if(quit_now){
779
errno = EINTR;
764
retval = -1;
780
765
goto mandos_end;
781
766
}
782
767
783
768
buffer_capacity = incbuffer(&buffer, buffer_length,
784
769
buffer_capacity);
785
770
if(buffer_capacity == 0){
786
int e = errno;
787
771
perror("incbuffer");
788
errno = e;
772
retval = -1;
789
773
goto mandos_end;
790
774
}
791
775
792
776
if(quit_now){
793
errno = EINTR;
777
retval = -1;
794
778
goto mandos_end;
795
779
}
796
780
809
793
ret = gnutls_handshake(session);
810
794
811
795
if(quit_now){
812
errno = EINTR;
796
retval = -1;
813
797
goto mandos_end;
814
798
}
815
799
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
816
800
if(ret < 0){
817
801
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
818
802
gnutls_perror(ret);
819
errno = EPROTO;
803
retval = -1;
820
804
goto mandos_end;
821
805
}
822
806
break;
823
807
default:
824
808
fprintf(stderr, "Unknown error while reading data from"
825
809
" encrypted session with Mandos server\n");
810
retval = -1;
826
811
gnutls_bye(session, GNUTLS_SHUT_RDWR);
827
errno = EIO;
828
812
goto mandos_end;
829
813
}
830
814
} else {
837
821
}
838
822
839
823
if(quit_now){
840
errno = EINTR;
824
retval = -1;
841
825
goto mandos_end;
842
826
}
843
827
844
828
do {
845
829
ret = gnutls_bye(session, GNUTLS_SHUT_RDWR);
846
830
if(quit_now){
847
errno = EINTR;
831
retval = -1;
848
832
goto mandos_end;
849
833
}
850
834
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
859
843
written = 0;
860
844
while(written < (size_t) decrypted_buffer_size){
861
845
if(quit_now){
862
errno = EINTR;
846
retval = -1;
863
847
goto mandos_end;
864
848
}
865
849
867
851
(size_t)decrypted_buffer_size - written,
868
852
stdout);
869
853
if(ret == 0 and ferror(stdout)){
870
int e = errno;
871
854
if(debug){
872
855
fprintf(stderr, "Error writing encrypted data: %s\n",
873
856
strerror(errno));
874
857
}
875
errno = e;
876
goto mandos_end;
858
retval = -1;
859
break;
877
860
}
878
861
written += (size_t)ret;
879
862
}
880
retval = 0;
863
free(decrypted_buffer);
864
} else {
865
retval = -1;
881
866
}
867
} else {
868
retval = -1;
882
869
}
883
870
884
871
/* Shutdown procedure */
885
872
886
873
mandos_end:
887
{
888
int e = errno;
889
free(decrypted_buffer);
890
free(buffer);
891
if(tcp_sd >= 0){
892
ret = (int)TEMP_FAILURE_RETRY(close(tcp_sd));
893
}
894
if(ret == -1){
895
if(e == 0){
896
e = errno;
897
}
898
perror("close");
899
}
900
gnutls_deinit(session);
901
if(quit_now){
902
e = EINTR;
903
retval = -1;
904
}
905
errno = e;
874
free(buffer);
875
if(tcp_sd >= 0){
876
ret = (int)TEMP_FAILURE_RETRY(close(tcp_sd));
877
}
878
if(ret == -1){
879
perror("close");
880
}
881
gnutls_deinit(session);
882
if(quit_now){
883
retval = -1;
906
884
}
907
885
return retval;
908
886
}
1024
1002
errno = old_errno;
1025
1003
}
1026
1004
1027
/*
1028
* This function determines if a directory entry in /sys/class/net
1029
* corresponds to an acceptable network device.
1030
* (This function is passed to scandir(3) as a filter function.)
1031
*/
1032
int good_interface(const struct dirent *if_entry){
1033
ssize_t ssret;
1034
char *flagname = NULL;
1035
int ret = asprintf(&flagname, "%s/%s/flags", sys_class_net,
1036
if_entry->d_name);
1037
if(ret < 0){
1038
perror("asprintf");
1039
return 0;
1040
}
1041
if(if_entry->d_name[0] == '.'){
1042
return 0;
1043
}
1044
int flags_fd = (int)TEMP_FAILURE_RETRY(open(flagname, O_RDONLY));
1045
if(flags_fd == -1){
1046
perror("open");
1047
return 0;
1048
}
1049
typedef short ifreq_flags; /* ifreq.ifr_flags in netdevice(7) */
1050
/* read line from flags_fd */
1051
ssize_t to_read = (sizeof(ifreq_flags)*2)+3; /* "0x1003\n" */
1052
char *flagstring = malloc((size_t)to_read+1); /* +1 for final \0 */
1053
flagstring[(size_t)to_read] = '\0';
1054
if(flagstring == NULL){
1055
perror("malloc");
1056
close(flags_fd);
1057
return 0;
1058
}
1059
while(to_read > 0){
1060
ssret = (ssize_t)TEMP_FAILURE_RETRY(read(flags_fd, flagstring,
1061
(size_t)to_read));
1062
if(ssret == -1){
1063
perror("read");
1064
free(flagstring);
1065
close(flags_fd);
1066
return 0;
1067
}
1068
to_read -= ssret;
1069
if(ssret == 0){
1070
break;
1071
}
1072
}
1073
close(flags_fd);
1074
intmax_t tmpmax;
1075
char *tmp;
1076
errno = 0;
1077
tmpmax = strtoimax(flagstring, &tmp, 0);
1078
if(errno != 0 or tmp == flagstring or (*tmp != '\0'
1079
and not (isspace(*tmp)))
1080
or tmpmax != (ifreq_flags)tmpmax){
1081
if(debug){
1082
fprintf(stderr, "Invalid flags \"%s\" for interface \"%s\"\n",
1083
flagstring, if_entry->d_name);
1084
}
1085
free(flagstring);
1086
return 0;
1087
}
1088
free(flagstring);
1089
ifreq_flags flags = (ifreq_flags)tmpmax;
1090
/* Reject the loopback device */
1091
if(flags & IFF_LOOPBACK){
1092
if(debug){
1093
fprintf(stderr, "Rejecting loopback interface \"%s\"\n",
1094
if_entry->d_name);
1095
}
1096
return 0;
1097
}
1098
/* Accept point-to-point devices only if connect_to is specified */
1099
if(connect_to != NULL and (flags & IFF_POINTOPOINT)){
1100
if(debug){
1101
fprintf(stderr, "Accepting point-to-point interface \"%s\"\n",
1102
if_entry->d_name);
1103
}
1104
return 1;
1105
}
1106
/* Otherwise, reject non-broadcast-capable devices */
1107
if(not (flags & IFF_BROADCAST)){
1108
if(debug){
1109
fprintf(stderr, "Rejecting non-broadcast interface \"%s\"\n",
1110
if_entry->d_name);
1111
}
1112
return 0;
1113
}
1114
/* Accept this device */
1115
if(debug){
1116
fprintf(stderr, "Interface \"%s\" is acceptable\n",
1117
if_entry->d_name);
1118
}
1119
return 1;
1120
}
1121
1122
1005
int main(int argc, char *argv[]){
1123
1006
AvahiSServiceBrowser *sb = NULL;
1124
1007
int error;
1126
1009
intmax_t tmpmax;
1127
1010
char *tmp;
1128
1011
int exitcode = EXIT_SUCCESS;
1129
const char *interface = "";
1012
const char *interface = "eth0";
1130
1013
struct ifreq network;
1131
1014
int sd = -1;
1132
1015
bool take_down_interface = false;
1133
1016
uid_t uid;
1134
1017
gid_t gid;
1018
char *connect_to = NULL;
1135
1019
char tempdir[] = "/tmp/mandosXXXXXX";
1136
1020
bool tempdir_created = false;
1137
1021
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
1200
1084
.arg = "SECONDS",
1201
1085
.doc = "Maximum delay to wait for interface startup",
1202
1086
.group = 2 },
1203
/*
1204
* These reproduce what we would get without ARGP_NO_HELP
1205
*/
1206
{ .name = "help", .key = '?',
1207
.doc = "Give this help list", .group = -1 },
1208
{ .name = "usage", .key = -3,
1209
.doc = "Give a short usage message", .group = -1 },
1210
{ .name = "version", .key = 'V',
1211
.doc = "Print program version", .group = -1 },
1212
1087
{ .name = NULL }
1213
1088
};
1214
1089
1215
1090
error_t parse_opt(int key, char *arg,
1216
1091
struct argp_state *state){
1217
errno = 0;
1218
1092
switch(key){
1219
1093
case 128: /* --debug */
1220
1094
debug = true;
1236
1110
tmpmax = strtoimax(arg, &tmp, 10);
1237
1111
if(errno != 0 or tmp == arg or *tmp != '\0'
1238
1112
or tmpmax != (typeof(mc.dh_bits))tmpmax){
1239
argp_error(state, "Bad number of DH bits");
1113
fprintf(stderr, "Bad number of DH bits\n");
1114
exit(EXIT_FAILURE);
1240
1115
}
1241
1116
mc.dh_bits = (typeof(mc.dh_bits))tmpmax;
1242
1117
break;
1247
1122
errno = 0;
1248
1123
delay = strtof(arg, &tmp);
1249
1124
if(errno != 0 or tmp == arg or *tmp != '\0'){
1250
argp_error(state, "Bad delay");
1125
fprintf(stderr, "Bad delay\n");
1126
exit(EXIT_FAILURE);
1251
1127
}
1252
1128
break;
1253
/*
1254
* These reproduce what we would get without ARGP_NO_HELP
1255
*/
1256
case '?': /* --help */
1257
argp_state_help(state, state->out_stream,
1258
(ARGP_HELP_STD_HELP | ARGP_HELP_EXIT_ERR)
1259
& ~(unsigned int)ARGP_HELP_EXIT_OK);
1260
case -3: /* --usage */
1261
argp_state_help(state, state->out_stream,
1262
ARGP_HELP_USAGE | ARGP_HELP_EXIT_ERR);
1263
case 'V': /* --version */
1264
fprintf(state->out_stream, "%s\n", argp_program_version);
1265
exit(argp_err_exit_status);
1129
case ARGP_KEY_ARG:
1130
argp_usage(state);
1131
case ARGP_KEY_END:
1266
1132
break;
1267
1133
default:
1268
1134
return ARGP_ERR_UNKNOWN;
1269
1135
}
1270
return errno;
1136
return 0;
1271
1137
}
1272
1138
1273
1139
struct argp argp = { .options = options, .parser = parse_opt,
1274
1140
.args_doc = "",
1275
1141
.doc = "Mandos client -- Get and decrypt"
1276
1142
" passwords from a Mandos server" };
1277
ret = argp_parse(&argp, argc, argv,
1278
ARGP_IN_ORDER | ARGP_NO_HELP, 0, NULL);
1279
switch(ret){
1280
case 0:
1281
break;
1282
case ENOMEM:
1283
default:
1284
errno = ret;
1285
perror("argp_parse");
1286
exitcode = EX_OSERR;
1287
goto end;
1288
case EINVAL:
1289
exitcode = EX_USAGE;
1143
ret = argp_parse(&argp, argc, argv, 0, 0, NULL);
1144
if(ret == ARGP_ERR_UNKNOWN){
1145
fprintf(stderr, "Unknown error while parsing arguments\n");
1146
exitcode = EXIT_FAILURE;
1290
1147
goto end;
1291
1148
}
1292
1149
}
1294
1151
if(not debug){
1295
1152
avahi_set_log_function(empty_log);
1296
1153
}
1297
1298
if(interface[0] == '\0'){
1299
struct dirent **direntries;
1300
ret = scandir(sys_class_net, &direntries, good_interface,
1301
alphasort);
1302
if(ret >= 1){
1303
/* Pick the first good interface */
1304
interface = strdup(direntries[0]->d_name);
1305
if(debug){
1306
fprintf(stderr, "Using interface \"%s\"\n", interface);
1307
}
1308
if(interface == NULL){
1309
perror("malloc");
1310
free(direntries);
1311
exitcode = EXIT_FAILURE;
1312
goto end;
1313
}
1314
free(direntries);
1315
} else {
1316
free(direntries);
1317
fprintf(stderr, "Could not find a network interface\n");
1318
exitcode = EXIT_FAILURE;
1319
goto end;
1320
}
1321
}
1322
1154
1323
1155
/* Initialize Avahi early so avahi_simple_poll_quit() can be called
1324
1156
from the signal handler */
1327
1159
mc.simple_poll = avahi_simple_poll_new();
1328
1160
if(mc.simple_poll == NULL){
1329
1161
fprintf(stderr, "Avahi: Failed to create simple poll object.\n");
1330
exitcode = EX_UNAVAILABLE;
1162
exitcode = EXIT_FAILURE;
1331
1163
goto end;
1332
1164
}
1333
1165
1335
1167
ret = sigaddset(&sigterm_action.sa_mask, SIGINT);
1336
1168
if(ret == -1){
1337
1169
perror("sigaddset");
1338
exitcode = EX_OSERR;
1170
exitcode = EXIT_FAILURE;
1339
1171
goto end;
1340
1172
}
1341
1173
ret = sigaddset(&sigterm_action.sa_mask, SIGHUP);
1342
1174
if(ret == -1){
1343
1175
perror("sigaddset");
1344
exitcode = EX_OSERR;
1176
exitcode = EXIT_FAILURE;
1345
1177
goto end;
1346
1178
}
1347
1179
ret = sigaddset(&sigterm_action.sa_mask, SIGTERM);
1348
1180
if(ret == -1){
1349
1181
perror("sigaddset");
1350
exitcode = EX_OSERR;
1182
exitcode = EXIT_FAILURE;
1351
1183
goto end;
1352
1184
}
1353
1185
/* Need to check if the handler is SIG_IGN before handling:
1357
1189
ret = sigaction(SIGINT, NULL, &old_sigterm_action);
1358
1190
if(ret == -1){
1359
1191
perror("sigaction");
1360
return EX_OSERR;
1192
return EXIT_FAILURE;
1361
1193
}
1362
1194
if(old_sigterm_action.sa_handler != SIG_IGN){
1363
1195
ret = sigaction(SIGINT, &sigterm_action, NULL);
1364
1196
if(ret == -1){
1365
1197
perror("sigaction");
1366
exitcode = EX_OSERR;
1198
exitcode = EXIT_FAILURE;
1367
1199
goto end;
1368
1200
}
1369
1201
}
1370
1202
ret = sigaction(SIGHUP, NULL, &old_sigterm_action);
1371
1203
if(ret == -1){
1372
1204
perror("sigaction");
1373
return EX_OSERR;
1205
return EXIT_FAILURE;
1374
1206
}
1375
1207
if(old_sigterm_action.sa_handler != SIG_IGN){
1376
1208
ret = sigaction(SIGHUP, &sigterm_action, NULL);
1377
1209
if(ret == -1){
1378
1210
perror("sigaction");
1379
exitcode = EX_OSERR;
1211
exitcode = EXIT_FAILURE;
1380
1212
goto end;
1381
1213
}
1382
1214
}
1383
1215
ret = sigaction(SIGTERM, NULL, &old_sigterm_action);
1384
1216
if(ret == -1){
1385
1217
perror("sigaction");
1386
return EX_OSERR;
1218
return EXIT_FAILURE;
1387
1219
}
1388
1220
if(old_sigterm_action.sa_handler != SIG_IGN){
1389
1221
ret = sigaction(SIGTERM, &sigterm_action, NULL);
1390
1222
if(ret == -1){
1391
1223
perror("sigaction");
1392
exitcode = EX_OSERR;
1224
exitcode = EXIT_FAILURE;
1393
1225
goto end;
1394
1226
}
1395
1227
}
1396
1228
1397
1229
/* If the interface is down, bring it up */
1398
if(strcmp(interface, "none") != 0){
1230
if(interface[0] != '\0'){
1399
1231
if_index = (AvahiIfIndex) if_nametoindex(interface);
1400
1232
if(if_index == 0){
1401
1233
fprintf(stderr, "No such interface: \"%s\"\n", interface);
1402
exitcode = EX_UNAVAILABLE;
1234
exitcode = EXIT_FAILURE;
1403
1235
goto end;
1404
1236
}
1405
1237
1416
1248
1417
1249
#ifdef __linux__
1418
1250
/* Lower kernel loglevel to KERN_NOTICE to avoid KERN_INFO
1419
messages about the network interface to mess up the prompt */
1251
messages to mess up the prompt */
1420
1252
ret = klogctl(8, NULL, 5);
1421
1253
bool restore_loglevel = true;
1422
1254
if(ret == -1){
1428
1260
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1429
1261
if(sd < 0){
1430
1262
perror("socket");
1431
exitcode = EX_OSERR;
1263
exitcode = EXIT_FAILURE;
1432
1264
#ifdef __linux__
1433
1265
if(restore_loglevel){
1434
1266
ret = klogctl(7, NULL, 0);
1457
1289
}
1458
1290
}
1459
1291
#endif /* __linux__ */
1460
exitcode = EX_OSERR;
1292
exitcode = EXIT_FAILURE;
1461
1293
/* Lower privileges */
1462
1294
errno = 0;
1463
1295
ret = seteuid(uid);
1472
1304
ret = ioctl(sd, SIOCSIFFLAGS, &network);
1473
1305
if(ret == -1){
1474
1306
take_down_interface = false;
1475
perror("ioctl SIOCSIFFLAGS +IFF_UP");
1476
exitcode = EX_OSERR;
1307
perror("ioctl SIOCSIFFLAGS");
1308
exitcode = EXIT_FAILURE;
1477
1309
#ifdef __linux__
1478
1310
if(restore_loglevel){
1479
1311
ret = klogctl(7, NULL, 0);
1545
1377
ret = init_gnutls_global(pubkey, seckey);
1546
1378
if(ret == -1){
1547
1379
fprintf(stderr, "init_gnutls_global failed\n");
1548
exitcode = EX_UNAVAILABLE;
1380
exitcode = EXIT_FAILURE;
1549
1381
goto end;
1550
1382
} else {
1551
1383
gnutls_initialized = true;
1568
1400
1569
1401
if(not init_gpgme(pubkey, seckey, tempdir)){
1570
1402
fprintf(stderr, "init_gpgme failed\n");
1571
exitcode = EX_UNAVAILABLE;
1403
exitcode = EXIT_FAILURE;
1572
1404
goto end;
1573
1405
} else {
1574
1406
gpgme_initialized = true;
1584
1416
char *address = strrchr(connect_to, ':');
1585
1417
if(address == NULL){
1586
1418
fprintf(stderr, "No colon in address\n");
1587
exitcode = EX_USAGE;
1419
exitcode = EXIT_FAILURE;
1588
1420
goto end;
1589
1421
}
1590
1422
1598
1430
if(errno != 0 or tmp == address+1 or *tmp != '\0'
1599
1431
or tmpmax != (uint16_t)tmpmax){
1600
1432
fprintf(stderr, "Bad port number\n");
1601
exitcode = EX_USAGE;
1433
exitcode = EXIT_FAILURE;
1602
1434
goto end;
1603
1435
}
1604
1436
1620
1452
if(quit_now){
1621
1453
goto end;
1622
1454
}
1623
1624
while(not quit_now){
1625
ret = start_mandos_communication(address, port, if_index, af);
1626
if(quit_now or ret == 0){
1627
break;
1628
}
1629
sleep(15);
1630
};
1631
1632
if (not quit_now){
1455
1456
ret = start_mandos_communication(address, port, if_index, af);
1457
if(ret < 0){
1458
exitcode = EXIT_FAILURE;
1459
} else {
1633
1460
exitcode = EXIT_SUCCESS;
1634
1461
}
1635
1636
1462
goto end;
1637
1463
}
1638
1464
1662
1488
if(mc.server == NULL){
1663
1489
fprintf(stderr, "Failed to create Avahi server: %s\n",
1664
1490
avahi_strerror(error));
1665
exitcode = EX_UNAVAILABLE;
1491
exitcode = EXIT_FAILURE;
1666
1492
goto end;
1667
1493
}
1668
1494
1677
1503
if(sb == NULL){
1678
1504
fprintf(stderr, "Failed to create service browser: %s\n",
1679
1505
avahi_strerror(avahi_server_errno(mc.server)));
1680
exitcode = EX_UNAVAILABLE;
1506
exitcode = EXIT_FAILURE;
1681
1507
goto end;
1682
1508
}
1683
1509
1732
1558
if(ret == -1){
1733
1559
perror("ioctl SIOCGIFFLAGS");
1734
1560
} else if(network.ifr_flags & IFF_UP) {
1735
network.ifr_flags &= ~(short)IFF_UP; /* clear flag */
1561
network.ifr_flags &= ~IFF_UP; /* clear flag */
1736
1562
ret = ioctl(sd, SIOCSIFFLAGS, &network);
1737
1563
if(ret == -1){
1738
perror("ioctl SIOCSIFFLAGS -IFF_UP");
1564
perror("ioctl SIOCSIFFLAGS");
1739
1565
}
1740
1566
}
1741
1567
ret = (int)TEMP_FAILURE_RETRY(close(sd));
1798
1624
if(quit_now){
1799
1625
sigemptyset(&old_sigterm_action.sa_mask);
1800
1626
old_sigterm_action.sa_handler = SIG_DFL;
1801
ret = (int)TEMP_FAILURE_RETRY(sigaction(signal_received,
1802
&old_sigterm_action,
1803
NULL));
1627
ret = sigaction(signal_received, &old_sigterm_action, NULL);
1804
1628
if(ret == -1){
1805
1629
perror("sigaction");
1806
1630
}
1807
do {
1808
ret = raise(signal_received);
1809
} while(ret != 0 and errno == EINTR);
1810
if(ret != 0){
1811
perror("raise");
1812
abort();
1813
}
1814
TEMP_FAILURE_RETRY(pause());
1631
raise(signal_received);
1815
1632
}
1816
1633
1817
1634
return exitcode;
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0