182
249
fd = (int)TEMP_FAILURE_RETRY(open(filename, O_RDONLY));
188
255
rc = gpgme_data_new_from_fd(&pgp_data, fd);
189
256
if(rc != GPG_ERR_NO_ERROR){
190
fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
257
fprintf(stderr, "Mandos plugin mandos-client: "
258
"bad gpgme_data_new_from_fd: %s: %s\n",
191
259
gpgme_strsource(rc), gpgme_strerror(rc));
195
263
rc = gpgme_op_import(mc.ctx, pgp_data);
196
264
if(rc != GPG_ERR_NO_ERROR){
197
fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
265
fprintf(stderr, "Mandos plugin mandos-client: "
266
"bad gpgme_op_import: %s: %s\n",
198
267
gpgme_strsource(rc), gpgme_strerror(rc));
202
271
ret = (int)TEMP_FAILURE_RETRY(close(fd));
273
perror_plus("close");
206
275
gpgme_data_release(pgp_data);
211
fprintf(stderr, "Initializing GPGME\n");
280
fprintf(stderr, "Mandos plugin mandos-client: "
281
"Initializing GPGME\n");
215
285
gpgme_check_version(NULL);
216
286
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
217
287
if(rc != GPG_ERR_NO_ERROR){
218
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
288
fprintf(stderr, "Mandos plugin mandos-client: "
289
"bad gpgme_engine_check_version: %s: %s\n",
219
290
gpgme_strsource(rc), gpgme_strerror(rc));
223
/* Set GPGME home directory for the OpenPGP engine only */
294
/* Set GPGME home directory for the OpenPGP engine only */
224
295
rc = gpgme_get_engine_info(&engine_info);
225
296
if(rc != GPG_ERR_NO_ERROR){
226
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
297
fprintf(stderr, "Mandos plugin mandos-client: "
298
"bad gpgme_get_engine_info: %s: %s\n",
227
299
gpgme_strsource(rc), gpgme_strerror(rc));
295
372
rc = gpgme_op_decrypt(mc.ctx, dh_crypto, dh_plain);
296
373
if(rc != GPG_ERR_NO_ERROR){
297
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
374
fprintf(stderr, "Mandos plugin mandos-client: "
375
"bad gpgme_op_decrypt: %s: %s\n",
298
376
gpgme_strsource(rc), gpgme_strerror(rc));
299
377
plaintext_length = -1;
301
379
gpgme_decrypt_result_t result;
302
380
result = gpgme_op_decrypt_result(mc.ctx);
303
381
if(result == NULL){
304
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
382
fprintf(stderr, "Mandos plugin mandos-client: "
383
"gpgme_op_decrypt_result failed\n");
306
fprintf(stderr, "Unsupported algorithm: %s\n",
385
fprintf(stderr, "Mandos plugin mandos-client: "
386
"Unsupported algorithm: %s\n",
307
387
result->unsupported_algorithm);
308
fprintf(stderr, "Wrong key usage: %u\n",
388
fprintf(stderr, "Mandos plugin mandos-client: "
389
"Wrong key usage: %u\n",
309
390
result->wrong_key_usage);
310
391
if(result->file_name != NULL){
311
fprintf(stderr, "File name: %s\n", result->file_name);
392
fprintf(stderr, "Mandos plugin mandos-client: "
393
"File name: %s\n", result->file_name);
313
395
gpgme_recipient_t recipient;
314
396
recipient = result->recipients;
315
397
while(recipient != NULL){
316
fprintf(stderr, "Public key algorithm: %s\n",
398
fprintf(stderr, "Mandos plugin mandos-client: "
399
"Public key algorithm: %s\n",
317
400
gpgme_pubkey_algo_name(recipient->pubkey_algo));
318
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
319
fprintf(stderr, "Secret key available: %s\n",
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",
320
405
recipient->status == GPG_ERR_NO_SECKEY
322
407
recipient = recipient->next;
441
527
GNUTLS_OPENPGP_FMT_BASE64);
442
528
if(ret != GNUTLS_E_SUCCESS){
530
"Mandos plugin mandos-client: "
444
531
"Error[%d] while reading the OpenPGP key pair ('%s',"
445
532
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
446
fprintf(stderr, "The GnuTLS error is: %s\n",
447
safer_gnutls_strerror(ret));
533
fprintf(stderr, "Mandos plugin mandos-client: "
534
"The GnuTLS error is: %s\n", safer_gnutls_strerror(ret));
451
538
/* GnuTLS server initialization */
452
539
ret = gnutls_dh_params_init(&mc.dh_params);
453
540
if(ret != GNUTLS_E_SUCCESS){
454
fprintf(stderr, "Error in GnuTLS DH parameter initialization:"
541
fprintf(stderr, "Mandos plugin mandos-client: "
542
"Error in GnuTLS DH parameter initialization:"
455
543
" %s\n", safer_gnutls_strerror(ret));
458
546
ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
459
547
if(ret != GNUTLS_E_SUCCESS){
460
fprintf(stderr, "Error in GnuTLS prime generation: %s\n",
548
fprintf(stderr, "Mandos plugin mandos-client: "
549
"Error in GnuTLS prime generation: %s\n",
461
550
safer_gnutls_strerror(ret));
711
fprintf(stderr, "Establishing TLS session with %s\n", ip);
831
fprintf(stderr, "Mandos plugin mandos-client: "
832
"Establishing TLS session with %s\n", ip);
840
/* Spurious warning from -Wint-to-pointer-cast */
718
841
gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) tcp_sd);
725
849
ret = gnutls_handshake(session);
729
854
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
731
856
if(ret != GNUTLS_E_SUCCESS){
733
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
858
fprintf(stderr, "Mandos plugin mandos-client: "
859
"*** GnuTLS Handshake failed ***\n");
734
860
gnutls_perror(ret);
739
866
/* Read OpenPGP packet that contains the wanted password */
742
fprintf(stderr, "Retrieving OpenPGP encrypted password from %s\n",
869
fprintf(stderr, "Mandos plugin mandos-client: "
870
"Retrieving OpenPGP encrypted password from %s\n", ip);
752
880
buffer_capacity = incbuffer(&buffer, buffer_length,
753
881
buffer_capacity);
754
882
if(buffer_capacity == 0){
884
perror_plus("incbuffer");
969
1128
signal_received = sig;
970
1129
int old_errno = errno;
1130
/* set main loop to exit */
971
1131
if(mc.simple_poll != NULL){
972
1132
avahi_simple_poll_quit(mc.simple_poll);
974
1134
errno = old_errno;
1137
bool get_flags(const char *ifname, struct ifreq *ifr){
1140
int s = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1142
perror_plus("socket");
1145
strcpy(ifr->ifr_name, ifname);
1146
ret = ioctl(s, SIOCGIFFLAGS, ifr);
1149
perror_plus("ioctl SIOCGIFFLAGS");
1156
bool good_flags(const char *ifname, const struct ifreq *ifr){
1158
/* Reject the loopback device */
1159
if(ifr->ifr_flags & IFF_LOOPBACK){
1161
fprintf(stderr, "Mandos plugin mandos-client: "
1162
"Rejecting loopback interface \"%s\"\n", ifname);
1166
/* Accept point-to-point devices only if connect_to is specified */
1167
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);
1174
/* Otherwise, reject non-broadcast-capable devices */
1175
if(not (ifr->ifr_flags & IFF_BROADCAST)){
1177
fprintf(stderr, "Mandos plugin mandos-client: "
1178
"Rejecting non-broadcast interface \"%s\"\n", ifname);
1182
/* Reject non-ARP interfaces (including dummy interfaces) */
1183
if(ifr->ifr_flags & IFF_NOARP){
1185
fprintf(stderr, "Mandos plugin mandos-client: "
1186
"Rejecting non-ARP interface \"%s\"\n", ifname);
1191
/* Accept this device */
1193
fprintf(stderr, "Mandos plugin mandos-client: "
1194
"Interface \"%s\" is good\n", ifname);
1200
* This function determines if a directory entry in /sys/class/net
1201
* corresponds to an acceptable network device.
1202
* (This function is passed to scandir(3) as a filter function.)
1204
int good_interface(const struct dirent *if_entry){
1205
if(if_entry->d_name[0] == '.'){
1210
if(not get_flags(if_entry->d_name, &ifr)){
1212
fprintf(stderr, "Mandos plugin mandos-client: "
1213
"Failed to get flags for interface \"%s\"\n",
1219
if(not good_flags(if_entry->d_name, &ifr)){
1226
* This function determines if a directory entry in /sys/class/net
1227
* corresponds to an acceptable network device which is up.
1228
* (This function is passed to scandir(3) as a filter function.)
1230
int up_interface(const struct dirent *if_entry){
1231
if(if_entry->d_name[0] == '.'){
1236
if(not get_flags(if_entry->d_name, &ifr)){
1238
fprintf(stderr, "Mandos plugin mandos-client: "
1239
"Failed to get flags for interface \"%s\"\n",
1245
/* Reject down interfaces */
1246
if(not (ifr.ifr_flags & IFF_UP)){
1248
fprintf(stderr, "Mandos plugin mandos-client: "
1249
"Rejecting down interface \"%s\"\n",
1255
/* Reject non-running interfaces */
1256
if(not (ifr.ifr_flags & IFF_RUNNING)){
1258
fprintf(stderr, "Mandos plugin mandos-client: "
1259
"Rejecting non-running interface \"%s\"\n",
1265
if(not good_flags(if_entry->d_name, &ifr)){
1271
int notdotentries(const struct dirent *direntry){
1272
/* Skip "." and ".." */
1273
if(direntry->d_name[0] == '.'
1274
and (direntry->d_name[1] == '\0'
1275
or (direntry->d_name[1] == '.'
1276
and direntry->d_name[2] == '\0'))){
1282
/* Is this directory entry a runnable program? */
1283
int runnable_hook(const struct dirent *direntry){
1287
if((direntry->d_name)[0] == '\0'){
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 */
1308
char *fullname = NULL;
1309
ret = asprintf(&fullname, "%s/%s", hookdir,
1312
perror_plus("asprintf");
1316
ret = stat(fullname, &st);
1319
perror_plus("Could not stat plugin");
1323
if(not (S_ISREG(st.st_mode))){
1324
/* Not a regular file */
1327
if(not (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))){
1328
/* Not executable */
1334
int avahi_loop_with_timeout(AvahiSimplePoll *s, int retry_interval){
1336
struct timespec now;
1337
struct timespec waited_time;
1338
intmax_t block_time;
1341
if(mc.current_server == NULL){
1343
fprintf(stderr, "Mandos plugin mandos-client: "
1344
"Wait until first server is found. No timeout!\n");
1346
ret = avahi_simple_poll_iterate(s, -1);
1349
fprintf(stderr, "Mandos plugin mandos-client: "
1350
"Check current_server if we should run it,"
1353
/* the current time */
1354
ret = clock_gettime(CLOCK_MONOTONIC, &now);
1356
perror_plus("clock_gettime");
1359
/* Calculating in ms how long time between now and server
1360
who we visted longest time ago. Now - last seen. */
1361
waited_time.tv_sec = (now.tv_sec
1362
- mc.current_server->last_seen.tv_sec);
1363
waited_time.tv_nsec = (now.tv_nsec
1364
- mc.current_server->last_seen.tv_nsec);
1365
/* total time is 10s/10,000ms.
1366
Converting to s from ms by dividing by 1,000,
1367
and ns to ms by dividing by 1,000,000. */
1368
block_time = ((retry_interval
1369
- ((intmax_t)waited_time.tv_sec * 1000))
1370
- ((intmax_t)waited_time.tv_nsec / 1000000));
1373
fprintf(stderr, "Mandos plugin mandos-client: "
1374
"Blocking for %" PRIdMAX " ms\n", block_time);
1377
if(block_time <= 0){
1378
ret = start_mandos_communication(mc.current_server->ip,
1379
mc.current_server->port,
1380
mc.current_server->if_index,
1381
mc.current_server->af);
1383
avahi_simple_poll_quit(mc.simple_poll);
1386
ret = clock_gettime(CLOCK_MONOTONIC,
1387
&mc.current_server->last_seen);
1389
perror_plus("clock_gettime");
1392
mc.current_server = mc.current_server->next;
1393
block_time = 0; /* Call avahi to find new Mandos
1394
servers, but don't block */
1397
ret = avahi_simple_poll_iterate(s, (int)block_time);
1400
if (ret > 0 or errno != EINTR){
1401
return (ret != 1) ? ret : 0;
977
1407
int main(int argc, char *argv[]){
978
1408
AvahiSServiceBrowser *sb = NULL;
1095
1543
delay = strtof(arg, &tmp);
1096
1544
if(errno != 0 or tmp == arg or *tmp != '\0'){
1097
fprintf(stderr, "Bad delay\n");
1545
argp_error(state, "Bad delay");
1547
case 132: /* --retry */
1549
retry_interval = strtod(arg, &tmp);
1550
if(errno != 0 or tmp == arg or *tmp != '\0'
1551
or (retry_interval * 1000) > INT_MAX
1552
or retry_interval < 0){
1553
argp_error(state, "Bad retry interval");
1556
case 133: /* --network-hook-dir */
1560
* These reproduce what we would get without ARGP_NO_HELP
1562
case '?': /* --help */
1563
argp_state_help(state, state->out_stream,
1564
(ARGP_HELP_STD_HELP | ARGP_HELP_EXIT_ERR)
1565
& ~(unsigned int)ARGP_HELP_EXIT_OK);
1566
case -3: /* --usage */
1567
argp_state_help(state, state->out_stream,
1568
ARGP_HELP_USAGE | ARGP_HELP_EXIT_ERR);
1569
case 'V': /* --version */
1570
fprintf(state->out_stream, "Mandos plugin mandos-client: ");
1571
fprintf(state->out_stream, "%s\n", argp_program_version);
1572
exit(argp_err_exit_status);
1106
1575
return ARGP_ERR_UNKNOWN;
1111
1580
struct argp argp = { .options = options, .parser = parse_opt,
1112
1581
.args_doc = "",
1113
1582
.doc = "Mandos client -- Get and decrypt"
1114
1583
" passwords from a Mandos server" };
1115
ret = argp_parse(&argp, argc, argv, 0, 0, NULL);
1116
if(ret == ARGP_ERR_UNKNOWN){
1117
fprintf(stderr, "Unknown error while parsing arguments\n");
1118
exitcode = EXIT_FAILURE;
1584
ret = argp_parse(&argp, argc, argv,
1585
ARGP_IN_ORDER | ARGP_NO_HELP, 0, NULL);
1592
perror_plus("argp_parse");
1593
exitcode = EX_OSERR;
1596
exitcode = EX_USAGE;
1602
/* Work around Debian bug #633582:
1603
<http://bugs.debian.org/633582> */
1606
/* Re-raise priviliges */
1610
perror_plus("seteuid");
1613
if(strcmp(seckey, PATHDIR "/" SECKEY) == 0){
1614
int seckey_fd = open(seckey, O_RDONLY);
1615
if(seckey_fd == -1){
1616
perror_plus("open");
1618
ret = (int)TEMP_FAILURE_RETRY(fstat(seckey_fd, &st));
1620
perror_plus("fstat");
1622
if(S_ISREG(st.st_mode) and st.st_uid == 0 and st.st_gid == 0){
1623
ret = fchown(seckey_fd, uid, gid);
1625
perror_plus("fchown");
1629
TEMP_FAILURE_RETRY(close(seckey_fd));
1633
if(strcmp(pubkey, PATHDIR "/" PUBKEY) == 0){
1634
int pubkey_fd = open(pubkey, O_RDONLY);
1635
if(pubkey_fd == -1){
1636
perror_plus("open");
1638
ret = (int)TEMP_FAILURE_RETRY(fstat(pubkey_fd, &st));
1640
perror_plus("fstat");
1642
if(S_ISREG(st.st_mode) and st.st_uid == 0 and st.st_gid == 0){
1643
ret = fchown(pubkey_fd, uid, gid);
1645
perror_plus("fchown");
1649
TEMP_FAILURE_RETRY(close(pubkey_fd));
1653
/* Lower privileges */
1657
perror_plus("seteuid");
1661
/* Find network hooks and run them */
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",
1124
1756
avahi_set_log_function(empty_log);
1759
if(interface[0] == '\0'){
1760
struct dirent **direntries;
1761
/* First look for interfaces that are up */
1762
ret = scandir(sys_class_net, &direntries, up_interface,
1765
/* No up interfaces, look for any good interfaces */
1767
ret = scandir(sys_class_net, &direntries, good_interface,
1771
/* Pick the first interface returned */
1772
interface = strdup(direntries[0]->d_name);
1774
fprintf(stderr, "Mandos plugin mandos-client: "
1775
"Using interface \"%s\"\n", interface);
1777
if(interface == NULL){
1778
perror_plus("malloc");
1780
exitcode = EXIT_FAILURE;
1786
fprintf(stderr, "Mandos plugin mandos-client: "
1787
"Could not find a network interface\n");
1788
exitcode = EXIT_FAILURE;
1127
1793
/* Initialize Avahi early so avahi_simple_poll_quit() can be called
1128
1794
from the signal handler */
1129
1795
/* Initialize the pseudo-RNG for Avahi */
1130
1796
srand((unsigned int) time(NULL));
1131
1797
mc.simple_poll = avahi_simple_poll_new();
1132
1798
if(mc.simple_poll == NULL){
1133
fprintf(stderr, "Avahi: Failed to create simple poll object.\n");
1134
exitcode = EXIT_FAILURE;
1799
fprintf(stderr, "Mandos plugin mandos-client: "
1800
"Avahi: Failed to create simple poll object.\n");
1801
exitcode = EX_UNAVAILABLE;
1138
1805
sigemptyset(&sigterm_action.sa_mask);
1139
1806
ret = sigaddset(&sigterm_action.sa_mask, SIGINT);
1141
perror("sigaddset");
1142
exitcode = EXIT_FAILURE;
1808
perror_plus("sigaddset");
1809
exitcode = EX_OSERR;
1145
1812
ret = sigaddset(&sigterm_action.sa_mask, SIGHUP);
1147
perror("sigaddset");
1148
exitcode = EXIT_FAILURE;
1814
perror_plus("sigaddset");
1815
exitcode = EX_OSERR;
1151
1818
ret = sigaddset(&sigterm_action.sa_mask, SIGTERM);
1153
perror("sigaddset");
1154
exitcode = EXIT_FAILURE;
1820
perror_plus("sigaddset");
1821
exitcode = EX_OSERR;
1157
1824
/* Need to check if the handler is SIG_IGN before handling:
1161
1828
ret = sigaction(SIGINT, NULL, &old_sigterm_action);
1163
perror("sigaction");
1164
return EXIT_FAILURE;
1830
perror_plus("sigaction");
1166
1833
if(old_sigterm_action.sa_handler != SIG_IGN){
1167
1834
ret = sigaction(SIGINT, &sigterm_action, NULL);
1169
perror("sigaction");
1170
exitcode = EXIT_FAILURE;
1836
perror_plus("sigaction");
1837
exitcode = EX_OSERR;
1174
1841
ret = sigaction(SIGHUP, NULL, &old_sigterm_action);
1176
perror("sigaction");
1177
return EXIT_FAILURE;
1843
perror_plus("sigaction");
1179
1846
if(old_sigterm_action.sa_handler != SIG_IGN){
1180
1847
ret = sigaction(SIGHUP, &sigterm_action, NULL);
1182
perror("sigaction");
1183
exitcode = EXIT_FAILURE;
1849
perror_plus("sigaction");
1850
exitcode = EX_OSERR;
1187
1854
ret = sigaction(SIGTERM, NULL, &old_sigterm_action);
1189
perror("sigaction");
1190
return EXIT_FAILURE;
1856
perror_plus("sigaction");
1192
1859
if(old_sigterm_action.sa_handler != SIG_IGN){
1193
1860
ret = sigaction(SIGTERM, &sigterm_action, NULL);
1195
perror("sigaction");
1196
exitcode = EXIT_FAILURE;
1862
perror_plus("sigaction");
1863
exitcode = EX_OSERR;
1201
1868
/* If the interface is down, bring it up */
1202
if(interface[0] != '\0'){
1869
if(strcmp(interface, "none") != 0){
1203
1870
if_index = (AvahiIfIndex) if_nametoindex(interface);
1204
1871
if(if_index == 0){
1205
fprintf(stderr, "No such interface: \"%s\"\n", interface);
1206
exitcode = EXIT_FAILURE;
1872
fprintf(stderr, "Mandos plugin mandos-client: "
1873
"No such interface: \"%s\"\n", interface);
1874
exitcode = EX_UNAVAILABLE;
1524
2235
ret = seteuid(0);
2237
perror_plus("seteuid");
1528
2239
if(geteuid() == 0){
1529
2240
ret = ioctl(sd, SIOCGIFFLAGS, &network);
1531
perror("ioctl SIOCGIFFLAGS");
1532
} else if(network.ifr_flags & IFF_UP) {
1533
network.ifr_flags &= ~IFF_UP; /* clear flag */
2242
perror_plus("ioctl SIOCGIFFLAGS");
2243
} else if(network.ifr_flags & IFF_UP){
2244
network.ifr_flags &= ~(short)IFF_UP; /* clear flag */
1534
2245
ret = ioctl(sd, SIOCSIFFLAGS, &network);
1536
perror("ioctl SIOCSIFFLAGS");
2247
perror_plus("ioctl SIOCSIFFLAGS -IFF_UP");
1539
2250
ret = (int)TEMP_FAILURE_RETRY(close(sd));
2252
perror_plus("close");
1543
2254
/* Lower privileges permanently */
1545
2256
ret = setuid(uid);
2258
perror_plus("setuid");
1552
/* Removes the temp directory used by GPGME */
2263
/* Removes the GPGME temp directory and all files inside */
1553
2264
if(tempdir_created){
1555
struct dirent *direntry;
1556
d = opendir(tempdir);
1558
if(errno != ENOENT){
1563
direntry = readdir(d);
1564
if(direntry == NULL){
1567
/* Skip "." and ".." */
1568
if(direntry->d_name[0] == '.'
1569
and (direntry->d_name[1] == '\0'
1570
or (direntry->d_name[1] == '.'
1571
and direntry->d_name[2] == '\0'))){
2265
struct dirent **direntries = NULL;
2266
struct dirent *direntry = NULL;
2267
int numentries = scandir(tempdir, &direntries, notdotentries,
2269
if (numentries > 0){
2270
for(int i = 0; i < numentries; i++){
2271
direntry = direntries[i];
1574
2272
char *fullname = NULL;
1575
2273
ret = asprintf(&fullname, "%s/%s", tempdir,
1576
2274
direntry->d_name);
2276
perror_plus("asprintf");
1581
2279
ret = remove(fullname);
1583
fprintf(stderr, "remove(\"%s\"): %s\n", fullname,
2281
fprintf(stderr, "Mandos plugin mandos-client: "
2282
"remove(\"%s\"): %s\n", fullname, strerror(errno));
1586
2284
free(fullname);
2288
/* need to clean even if 0 because man page doesn't specify */
2290
if (numentries == -1){
2291
perror_plus("scandir");
1590
2293
ret = rmdir(tempdir);
1591
2294
if(ret == -1 and errno != ENOENT){
2295
perror_plus("rmdir");
1597
2300
sigemptyset(&old_sigterm_action.sa_mask);
1598
2301
old_sigterm_action.sa_handler = SIG_DFL;
1599
ret = sigaction(signal_received, &old_sigterm_action, NULL);
2302
ret = (int)TEMP_FAILURE_RETRY(sigaction(signal_received,
2303
&old_sigterm_action,
1601
perror("sigaction");
1603
raise(signal_received);
2306
perror_plus("sigaction");
2309
ret = raise(signal_received);
2310
} while(ret != 0 and errno == EINTR);
2312
perror_plus("raise");
2315
TEMP_FAILURE_RETRY(pause());
1606
2318
return exitcode;