53
53
sockaddr_in6, PF_INET6,
54
54
SOCK_STREAM, uid_t, gid_t, open(),
56
#include <sys/stat.h> /* open() */
56
#include <sys/stat.h> /* open(), S_ISREG */
57
57
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
58
58
inet_pton(), connect() */
59
59
#include <fcntl.h> /* open() */
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
92
#include <sys/klog.h> /* klogctl() */
108
110
init_gnutls_session(),
110
112
#include <gnutls/openpgp.h>
111
/* gnutls_certificate_set_openpgp_key_file(),
112
GNUTLS_OPENPGP_FMT_BASE64 */
113
/* gnutls_certificate_set_openpgp_key_file(),
114
GNUTLS_OPENPGP_FMT_BASE64 */
115
117
#include <gpgme.h> /* All GPGME types, constants and
170
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));
174
187
* Make additional room in "buffer" for at least BUFFER_SIZE more
175
188
* bytes. "buffer_capacity" is how much is currently allocated,
176
189
* "buffer_length" is how much is already used.
178
191
size_t incbuffer(char **buffer, size_t buffer_length,
179
size_t buffer_capacity){
192
size_t buffer_capacity){
180
193
if(buffer_length + BUFFER_SIZE > buffer_capacity){
181
194
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
182
195
if(buffer == NULL){
251
263
rc = gpgme_data_new_from_fd(&pgp_data, fd);
252
264
if(rc != GPG_ERR_NO_ERROR){
253
fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
254
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));
258
270
rc = gpgme_op_import(mc.ctx, pgp_data);
259
271
if(rc != GPG_ERR_NO_ERROR){
260
fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
261
gpgme_strsource(rc), gpgme_strerror(rc));
272
fprintf_plus(stderr, "bad gpgme_op_import: %s: %s\n",
273
gpgme_strsource(rc), gpgme_strerror(rc));
274
fprintf(stderr, "Initializing GPGME\n");
286
fprintf_plus(stderr, "Initializing GPGME\n");
278
290
gpgme_check_version(NULL);
279
291
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
280
292
if(rc != GPG_ERR_NO_ERROR){
281
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
282
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));
286
298
/* Set GPGME home directory for the OpenPGP engine only */
287
299
rc = gpgme_get_engine_info(&engine_info);
288
300
if(rc != GPG_ERR_NO_ERROR){
289
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
290
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));
293
305
while(engine_info != NULL){
299
311
engine_info = engine_info->next;
301
313
if(engine_info == NULL){
302
fprintf(stderr, "Could not set GPGME home dir to %s\n", tempdir);
314
fprintf_plus(stderr, "Could not set GPGME home dir to %s\n",
306
319
/* Create new GPGME "context" */
307
320
rc = gpgme_new(&(mc.ctx));
308
321
if(rc != GPG_ERR_NO_ERROR){
309
fprintf(stderr, "bad gpgme_new: %s: %s\n",
310
gpgme_strsource(rc), gpgme_strerror(rc));
322
fprintf_plus(stderr, "Mandos plugin mandos-client: "
323
"bad gpgme_new: %s: %s\n", gpgme_strsource(rc),
332
346
ssize_t plaintext_length = 0;
335
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
349
fprintf_plus(stderr, "Trying to decrypt OpenPGP data\n");
338
352
/* Create new GPGME data buffer from memory cryptotext */
339
353
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
341
355
if(rc != GPG_ERR_NO_ERROR){
342
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
343
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));
347
361
/* Create new empty GPGME data buffer for the plaintext */
348
362
rc = gpgme_data_new(&dh_plain);
349
363
if(rc != GPG_ERR_NO_ERROR){
350
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
351
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));
352
367
gpgme_data_release(dh_crypto);
358
373
rc = gpgme_op_decrypt(mc.ctx, dh_crypto, dh_plain);
359
374
if(rc != GPG_ERR_NO_ERROR){
360
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
361
gpgme_strsource(rc), gpgme_strerror(rc));
375
fprintf_plus(stderr, "bad gpgme_op_decrypt: %s: %s\n",
376
gpgme_strsource(rc), gpgme_strerror(rc));
362
377
plaintext_length = -1;
364
379
gpgme_decrypt_result_t result;
365
380
result = gpgme_op_decrypt_result(mc.ctx);
366
381
if(result == NULL){
367
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
382
fprintf_plus(stderr, "gpgme_op_decrypt_result failed\n");
369
fprintf(stderr, "Unsupported algorithm: %s\n",
370
result->unsupported_algorithm);
371
fprintf(stderr, "Wrong key usage: %u\n",
372
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);
373
388
if(result->file_name != NULL){
374
fprintf(stderr, "File name: %s\n", result->file_name);
389
fprintf_plus(stderr, "File name: %s\n", result->file_name);
376
391
gpgme_recipient_t recipient;
377
392
recipient = result->recipients;
378
393
while(recipient != NULL){
379
fprintf(stderr, "Public key algorithm: %s\n",
380
gpgme_pubkey_algo_name(recipient->pubkey_algo));
381
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
382
fprintf(stderr, "Secret key available: %s\n",
383
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
385
401
recipient = recipient->next;
403
419
*plaintext = NULL;
405
421
plaintext_capacity = incbuffer(plaintext,
406
(size_t)plaintext_length,
422
(size_t)plaintext_length,
408
424
if(plaintext_capacity == 0){
409
perror_plus("incbuffer");
410
plaintext_length = -1;
425
perror_plus("incbuffer");
426
plaintext_length = -1;
414
430
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
455
471
/* GnuTLS log function callback */
456
472
static void debuggnutls(__attribute__((unused)) int level,
457
473
const char* string){
458
fprintf(stderr, "GnuTLS: %s", string);
474
fprintf_plus(stderr, "GnuTLS: %s", string);
461
477
static int init_gnutls_global(const char *pubkeyfilename,
466
fprintf(stderr, "Initializing GnuTLS\n");
482
fprintf_plus(stderr, "Initializing GnuTLS\n");
469
485
ret = gnutls_global_init();
470
486
if(ret != GNUTLS_E_SUCCESS){
471
fprintf(stderr, "GnuTLS global_init: %s\n",
472
safer_gnutls_strerror(ret));
487
fprintf_plus(stderr, "GnuTLS global_init: %s\n",
488
safer_gnutls_strerror(ret));
484
500
/* OpenPGP credentials */
485
501
ret = gnutls_certificate_allocate_credentials(&mc.cred);
486
502
if(ret != GNUTLS_E_SUCCESS){
487
fprintf(stderr, "GnuTLS memory error: %s\n",
488
safer_gnutls_strerror(ret));
503
fprintf_plus(stderr, "GnuTLS memory error: %s\n",
504
safer_gnutls_strerror(ret));
489
505
gnutls_global_deinit();
494
fprintf(stderr, "Attempting to use OpenPGP public key %s and"
495
" 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",
499
516
ret = gnutls_certificate_set_openpgp_key_file
500
517
(mc.cred, pubkeyfilename, seckeyfilename,
501
518
GNUTLS_OPENPGP_FMT_BASE64);
502
519
if(ret != GNUTLS_E_SUCCESS){
504
"Error[%d] while reading the OpenPGP key pair ('%s',"
505
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
506
fprintf(stderr, "The GnuTLS error is: %s\n",
507
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));
511
528
/* GnuTLS server initialization */
512
529
ret = gnutls_dh_params_init(&mc.dh_params);
513
530
if(ret != GNUTLS_E_SUCCESS){
514
fprintf(stderr, "Error in GnuTLS DH parameter initialization:"
515
" %s\n", safer_gnutls_strerror(ret));
531
fprintf_plus(stderr, "Error in GnuTLS DH parameter"
532
" initialization: %s\n",
533
safer_gnutls_strerror(ret));
518
536
ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
519
537
if(ret != GNUTLS_E_SUCCESS){
520
fprintf(stderr, "Error in GnuTLS prime generation: %s\n",
521
safer_gnutls_strerror(ret));
538
fprintf_plus(stderr, "Error in GnuTLS prime generation: %s\n",
539
safer_gnutls_strerror(ret));
545
563
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
546
564
if(ret != GNUTLS_E_SUCCESS){
547
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
548
safer_gnutls_strerror(ret));
566
"Error in GnuTLS session initialization: %s\n",
567
safer_gnutls_strerror(ret));
559
578
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
560
579
if(ret != GNUTLS_E_SUCCESS){
561
fprintf(stderr, "Syntax error at: %s\n", err);
562
fprintf(stderr, "GnuTLS error: %s\n",
563
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));
564
583
gnutls_deinit(*session);
576
595
} while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
577
596
if(ret != GNUTLS_E_SUCCESS){
578
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
579
safer_gnutls_strerror(ret));
597
fprintf_plus(stderr, "Error setting GnuTLS credentials: %s\n",
598
safer_gnutls_strerror(ret));
580
599
gnutls_deinit(*session);
683
702
if(IN6_IS_ADDR_LINKLOCAL /* Spurious warnings from */
684
703
(&to.in6.sin6_addr)){ /* -Wstrict-aliasing=2 or lower and
686
705
if(if_index == AVAHI_IF_UNSPEC){
687
fprintf(stderr, "An IPv6 link-local address is incomplete"
688
" without a network interface\n");
706
fprintf_plus(stderr, "An IPv6 link-local address is"
707
" incomplete without a network interface\n");
709
728
if(if_indextoname((unsigned int)if_index, interface) == NULL){
710
729
perror_plus("if_indextoname");
712
fprintf(stderr, "Connection to: %s%%%s, port %" PRIu16 "\n",
713
ip, interface, port);
731
fprintf_plus(stderr, "Connection to: %s%%%s, port %" PRIu16
732
"\n", ip, interface, port);
716
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
735
fprintf_plus(stderr, "Connection to: %s, port %" PRIu16 "\n",
719
738
char addrstr[(INET_ADDRSTRLEN > INET6_ADDRSTRLEN) ?
720
739
INET_ADDRSTRLEN : INET6_ADDRSTRLEN] = "";
872
891
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
874
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
893
fprintf_plus(stderr, "*** GnuTLS Re-handshake failed "
875
895
gnutls_perror(ret);
881
fprintf(stderr, "Unknown error while reading data from"
882
" encrypted session with Mandos server\n");
901
fprintf_plus(stderr, "Unknown error while reading data from"
902
" encrypted session with Mandos server\n");
883
903
gnutls_bye(session, GNUTLS_SHUT_RDWR);
992
1011
case AVAHI_RESOLVER_FAILURE:
993
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
994
" of type '%s' in domain '%s': %s\n", name, type, domain,
995
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)));
998
1018
case AVAHI_RESOLVER_FOUND:
1000
1020
char ip[AVAHI_ADDRESS_STR_MAX];
1001
1021
avahi_address_snprint(ip, sizeof(ip), address);
1003
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
1004
PRIdMAX ") on port %" PRIu16 "\n", name, host_name,
1005
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);
1007
1027
int ret = start_mandos_communication(ip, port, interface,
1008
1028
avahi_proto_to_af(proto));
1041
1061
case AVAHI_BROWSER_FAILURE:
1043
fprintf(stderr, "(Avahi browser) %s\n",
1044
avahi_strerror(avahi_server_errno(mc.server)));
1063
fprintf_plus(stderr, "(Avahi browser) %s\n",
1064
avahi_strerror(avahi_server_errno(mc.server)));
1045
1065
avahi_simple_poll_quit(mc.simple_poll);
1054
1074
if(avahi_s_service_resolver_new(mc.server, interface, protocol,
1055
1075
name, type, domain, protocol, 0,
1056
1076
resolve_callback, NULL) == NULL)
1057
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
1058
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)));
1061
1082
case AVAHI_BROWSER_REMOVE:
1109
1131
/* Reject the loopback device */
1110
1132
if(ifr->ifr_flags & IFF_LOOPBACK){
1112
fprintf(stderr, "Rejecting loopback interface \"%s\"\n",
1134
fprintf_plus(stderr, "Rejecting loopback interface \"%s\"\n",
1117
1139
/* Accept point-to-point devices only if connect_to is specified */
1118
1140
if(connect_to != NULL and (ifr->ifr_flags & IFF_POINTOPOINT)){
1120
fprintf(stderr, "Accepting point-to-point interface \"%s\"\n",
1142
fprintf_plus(stderr, "Accepting point-to-point interface"
1143
" \"%s\"\n", ifname);
1125
1147
/* Otherwise, reject non-broadcast-capable devices */
1126
1148
if(not (ifr->ifr_flags & IFF_BROADCAST)){
1128
fprintf(stderr, "Rejecting non-broadcast interface \"%s\"\n",
1150
fprintf_plus(stderr, "Rejecting non-broadcast interface"
1151
" \"%s\"\n", ifname);
1133
1155
/* Reject non-ARP interfaces (including dummy interfaces) */
1134
1156
if(ifr->ifr_flags & IFF_NOARP){
1136
fprintf(stderr, "Rejecting non-ARP interface \"%s\"\n", ifname);
1158
fprintf_plus(stderr, "Rejecting non-ARP interface \"%s\"\n",
1141
1164
/* Accept this device */
1143
fprintf(stderr, "Interface \"%s\" is good\n", ifname);
1166
fprintf_plus(stderr, "Interface \"%s\" is good\n", ifname);
1151
1174
* (This function is passed to scandir(3) as a filter function.)
1153
1176
int good_interface(const struct dirent *if_entry){
1155
1177
if(if_entry->d_name[0] == '.'){
1158
1181
struct ifreq ifr;
1182
if(not get_flags(if_entry->d_name, &ifr)){
1184
fprintf_plus(stderr, "Failed to get flags for interface "
1185
"\"%s\"\n", if_entry->d_name);
1190
if(not good_flags(if_entry->d_name, &ifr)){
1197
* This function determines if a directory entry in /sys/class/net
1198
* corresponds to an acceptable network device which is up.
1199
* (This function is passed to scandir(3) as a filter function.)
1201
int up_interface(const struct dirent *if_entry){
1202
if(if_entry->d_name[0] == '.'){
1160
1207
if(not get_flags(if_entry->d_name, &ifr)){
1209
fprintf_plus(stderr, "Failed to get flags for interface "
1210
"\"%s\"\n", if_entry->d_name);
1215
/* Reject down interfaces */
1216
if(not (ifr.ifr_flags & IFF_UP)){
1218
fprintf_plus(stderr, "Rejecting down interface \"%s\"\n",
1224
/* Reject non-running interfaces */
1225
if(not (ifr.ifr_flags & IFF_RUNNING)){
1227
fprintf_plus(stderr, "Rejecting non-running interface \"%s\"\n",
1250
/* Is this directory entry a runnable program? */
1251
int runnable_hook(const struct dirent *direntry){
1256
if((direntry->d_name)[0] == '\0'){
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",
1274
char *fullname = NULL;
1275
ret = asprintf(&fullname, "%s/%s", hookdir, direntry->d_name);
1277
perror_plus("asprintf");
1281
ret = stat(fullname, &st);
1284
perror_plus("Could not stat hook");
1288
if(not (S_ISREG(st.st_mode))){
1289
/* Not a regular file */
1291
fprintf_plus(stderr, "Ignoring hook \"%s\" - not a file\n",
1296
if(not (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))){
1297
/* Not executable */
1299
fprintf_plus(stderr, "Ignoring hook \"%s\" - not executable\n",
1181
1307
int avahi_loop_with_timeout(AvahiSimplePoll *s, int retry_interval){
1183
1309
struct timespec now;
1188
1314
if(mc.current_server == NULL){
1191
"Wait until first server is found. No timeout!\n");
1316
fprintf_plus(stderr, "Wait until first server is found."
1193
1319
ret = avahi_simple_poll_iterate(s, -1);
1196
fprintf(stderr, "Check current_server if we should run it,"
1322
fprintf_plus(stderr, "Check current_server if we should run"
1199
1325
/* the current time */
1200
1326
ret = clock_gettime(CLOCK_MONOTONIC, &now);
1242
1369
ret = avahi_simple_poll_iterate(s, (int)block_time);
1245
if (ret > 0 or errno != EINTR) {
1372
if (ret > 0 or errno != EINTR){
1246
1373
return (ret != 1) ? ret : 0;
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[0];
1392
char *fullname = NULL;
1393
ret = asprintf(&fullname, "%s/%s", hookdir, direntry->d_name);
1395
perror_plus("asprintf");
1398
pid_t hook_pid = fork();
1401
dup2(devnull, STDIN_FILENO);
1403
dup2(STDERR_FILENO, STDOUT_FILENO);
1404
ret = setenv("MANDOSNETHOOKDIR", hookdir, 1);
1406
perror_plus("setenv");
1409
ret = setenv("DEVICE", interface, 1);
1411
perror_plus("setenv");
1414
ret = setenv("VERBOSE", debug ? "1" : "0", 1);
1416
perror_plus("setenv");
1419
ret = setenv("MODE", mode, 1);
1421
perror_plus("setenv");
1425
ret = asprintf(&delaystring, "%f", delay);
1427
perror_plus("asprintf");
1430
ret = setenv("DELAY", delaystring, 1);
1433
perror_plus("setenv");
1437
ret = execl(fullname, direntry->d_name, mode, NULL);
1438
perror_plus("execl");
1441
if(TEMP_FAILURE_RETRY(waitpid(hook_pid, &status, 0)) == -1){
1442
perror_plus("waitpid");
1446
if(WIFEXITED(status)){
1447
if(WEXITSTATUS(status) != 0){
1448
fprintf_plus(stderr, "Warning: network hook \"%s\" exited"
1449
" with status %d\n", direntry->d_name,
1450
WEXITSTATUS(status));
1454
} else if(WIFSIGNALED(status)){
1455
fprintf_plus(stderr, "Warning: network hook \"%s\" died by"
1456
" signal %d\n", direntry->d_name,
1461
fprintf_plus(stderr, "Warning: network hook \"%s\""
1462
" crashed\n", direntry->d_name);
1252
1477
int main(int argc, char *argv[]){
1253
1478
AvahiSServiceBrowser *sb = NULL;
1405
1637
argp_state_help(state, state->out_stream,
1406
1638
ARGP_HELP_USAGE | ARGP_HELP_EXIT_ERR);
1407
1639
case 'V': /* --version */
1408
fprintf(state->out_stream, "%s\n", argp_program_version);
1640
fprintf_plus(state->out_stream,
1641
"Mandos plugin mandos-client: ");
1642
fprintf_plus(state->out_stream, "%s\n", argp_program_version);
1409
1643
exit(argp_err_exit_status);
1734
/* Run network hooks */
1736
/* Re-raise priviliges */
1740
perror_plus("seteuid");
1742
if(not run_network_hooks("start", interface, delay)){
1745
/* Lower privileges */
1749
perror_plus("seteuid");
1499
1754
avahi_set_log_function(empty_log);
1502
1757
if(interface[0] == '\0'){
1503
1758
struct dirent **direntries;
1504
ret = scandir(sys_class_net, &direntries, good_interface,
1759
/* First look for interfaces that are up */
1760
ret = scandir(sys_class_net, &direntries, up_interface,
1763
/* No up interfaces, look for any good interfaces */
1765
ret = scandir(sys_class_net, &direntries, good_interface,
1507
/* Pick the first good interface */
1769
/* Pick the first interface returned */
1508
1770
interface = strdup(direntries[0]->d_name);
1510
fprintf(stderr, "Using interface \"%s\"\n", interface);
1772
fprintf_plus(stderr, "Using interface \"%s\"\n", interface);
1512
1774
if(interface == NULL){
1513
1775
perror_plus("malloc");
1602
1865
if(strcmp(interface, "none") != 0){
1603
1866
if_index = (AvahiIfIndex) if_nametoindex(interface);
1604
1867
if(if_index == 0){
1605
fprintf(stderr, "No such interface: \"%s\"\n", interface);
1868
fprintf_plus(stderr, "No such interface: \"%s\"\n", interface);
1606
1869
exitcode = EX_UNAVAILABLE;
1801
2056
tmpmax = strtoimax(address+1, &tmp, 10);
1802
2057
if(errno != 0 or tmp == address+1 or *tmp != '\0'
1803
2058
or tmpmax != (uint16_t)tmpmax){
1804
fprintf(stderr, "Bad port number\n");
2059
fprintf_plus(stderr, "Bad port number\n");
1805
2060
exitcode = EX_USAGE;
1889
2144
AVAHI_PROTO_UNSPEC, "_mandos._tcp",
1890
2145
NULL, 0, browse_callback, NULL);
1891
2146
if(sb == NULL){
1892
fprintf(stderr, "Failed to create service browser: %s\n",
1893
avahi_strerror(avahi_server_errno(mc.server)));
2147
fprintf_plus(stderr, "Failed to create service browser: %s\n",
2148
avahi_strerror(avahi_server_errno(mc.server)));
1894
2149
exitcode = EX_UNAVAILABLE;
1902
2157
/* Run the main loop */
1905
fprintf(stderr, "Starting Avahi loop search\n");
2160
fprintf_plus(stderr, "Starting Avahi loop search\n");
1908
2163
ret = avahi_loop_with_timeout(mc.simple_poll,
1909
2164
(int)(retry_interval * 1000));
1911
fprintf(stderr, "avahi_loop_with_timeout exited %s\n",
1912
(ret == 0) ? "successfully" : "with error");
2166
fprintf_plus(stderr, "avahi_loop_with_timeout exited %s\n",
2167
(ret == 0) ? "successfully" : "with error");
1918
fprintf(stderr, "%s exiting\n", argv[0]);
2173
fprintf_plus(stderr, "%s exiting\n", argv[0]);
1921
2176
/* Cleanup things */
1952
/* Take down the network interface */
1953
if(take_down_interface){
1954
/* Re-raise priviliges */
2207
/* Re-raise priviliges */
1956
2210
ret = seteuid(0);
1958
2212
perror_plus("seteuid");
2214
/* Run network hooks */
2215
if(not run_network_hooks("stop", interface, delay)){
2219
/* Take down the network interface */
2220
if(take_down_interface and geteuid() == 0){
1961
2221
ret = ioctl(sd, SIOCGIFFLAGS, &network);
1963
2223
perror_plus("ioctl SIOCGIFFLAGS");
1964
} else if(network.ifr_flags & IFF_UP) {
2224
} else if(network.ifr_flags & IFF_UP){
1965
2225
network.ifr_flags &= ~(short)IFF_UP; /* clear flag */
1966
2226
ret = ioctl(sd, SIOCSIFFLAGS, &network);