32
31
/* Needed by GPGME, specifically gpgme_data_seek() */
33
#ifndef _LARGEFILE_SOURCE
34
32
#define _LARGEFILE_SOURCE
36
#ifndef _FILE_OFFSET_BITS
37
33
#define _FILE_OFFSET_BITS 64
40
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), asprintf() */
42
#include <stdio.h> /* fprintf(), stderr, fwrite(),
43
stdout, ferror(), remove() */
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */
37
#include <stdio.h> /* fprintf(), stderr, fwrite(), stdout,
44
39
#include <stdint.h> /* uint16_t, uint32_t */
45
40
#include <stddef.h> /* NULL, size_t, ssize_t */
46
41
#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,
48
#include <stdbool.h> /* bool, false, true */
43
#include <stdbool.h> /* bool, true */
49
44
#include <string.h> /* memset(), strcmp(), strlen(),
50
strerror(), asprintf(), strcpy() */
51
#include <sys/ioctl.h> /* ioctl */
45
strerror(), memcpy(), strcpy() */
46
#include <sys/ioctl.h> /* ioctl */
52
47
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
53
48
sockaddr_in6, PF_INET6,
54
SOCK_STREAM, uid_t, gid_t, open(),
56
#include <sys/stat.h> /* open() */
49
SOCK_STREAM, INET6_ADDRSTRLEN,
51
#include <inttypes.h> /* PRIu16 */
57
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
58
inet_pton(), connect() */
59
#include <fcntl.h> /* open() */
60
#include <dirent.h> /* opendir(), struct dirent, readdir()
62
#include <inttypes.h> /* PRIu16, PRIdMAX, intmax_t,
53
struct in6_addr, inet_pton(),
64
55
#include <assert.h> /* assert() */
65
56
#include <errno.h> /* perror(), errno */
66
#include <time.h> /* nanosleep(), time() */
57
#include <time.h> /* time() */
67
58
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
68
59
SIOCSIFFLAGS, if_indextoname(),
69
60
if_nametoindex(), IF_NAMESIZE */
70
#include <netinet/in.h> /* IN6_IS_ADDR_LINKLOCAL,
71
INET_ADDRSTRLEN, INET6_ADDRSTRLEN
73
61
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
74
62
getuid(), getgid(), setuid(),
64
#include <netinet/in.h>
76
65
#include <arpa/inet.h> /* inet_pton(), htons */
77
#include <iso646.h> /* not, or, and */
66
#include <iso646.h> /* not, and */
78
67
#include <argp.h> /* struct argp_option, error_t, struct
79
68
argp_state, struct argp,
80
69
argp_parse(), ARGP_KEY_ARG,
81
70
ARGP_KEY_END, ARGP_ERR_UNKNOWN */
82
#include <signal.h> /* sigemptyset(), sigaddset(),
83
sigaction(), SIGTERM, sigaction,
87
#include <sys/klog.h> /* klogctl() */
88
#endif /* __linux__ */
91
73
/* All Avahi types, constants and functions
133
* Decrypt OpenPGP data using keyrings in HOMEDIR.
134
* Returns -1 on error
165
static bool init_gpgme(const char *seckey,
166
const char *pubkey, const char *tempdir){
136
static ssize_t pgp_packet_decrypt (const char *cryptotext,
139
const char *homedir){
140
gpgme_data_t dh_crypto, dh_plain;
168
142
gpgme_error_t rc;
144
size_t plaintext_capacity = 0;
145
ssize_t plaintext_length = 0;
169
146
gpgme_engine_info_t engine_info;
173
* Helper function to insert pub and seckey to the engine keyring.
175
bool import_key(const char *filename){
177
gpgme_data_t pgp_data;
179
fd = (int)TEMP_FAILURE_RETRY(open(filename, O_RDONLY));
185
rc = gpgme_data_new_from_fd(&pgp_data, fd);
186
if(rc != GPG_ERR_NO_ERROR){
187
fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
188
gpgme_strsource(rc), gpgme_strerror(rc));
192
rc = gpgme_op_import(mc.ctx, pgp_data);
193
if(rc != GPG_ERR_NO_ERROR){
194
fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
195
gpgme_strsource(rc), gpgme_strerror(rc));
199
ret = (int)TEMP_FAILURE_RETRY(close(fd));
203
gpgme_data_release(pgp_data);
208
fprintf(stderr, "Initializing GPGME\n");
149
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
212
153
gpgme_check_version(NULL);
213
154
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
214
if(rc != GPG_ERR_NO_ERROR){
155
if (rc != GPG_ERR_NO_ERROR){
215
156
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
216
157
gpgme_strsource(rc), gpgme_strerror(rc));
220
/* Set GPGME home directory for the OpenPGP engine only */
221
rc = gpgme_get_engine_info(&engine_info);
222
if(rc != GPG_ERR_NO_ERROR){
161
/* Set GPGME home directory for the OpenPGP engine only */
162
rc = gpgme_get_engine_info (&engine_info);
163
if (rc != GPG_ERR_NO_ERROR){
223
164
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
224
165
gpgme_strsource(rc), gpgme_strerror(rc));
227
168
while(engine_info != NULL){
228
169
if(engine_info->protocol == GPGME_PROTOCOL_OpenPGP){
229
170
gpgme_set_engine_info(GPGME_PROTOCOL_OpenPGP,
230
engine_info->file_name, tempdir);
171
engine_info->file_name, homedir);
233
174
engine_info = engine_info->next;
235
176
if(engine_info == NULL){
236
fprintf(stderr, "Could not set GPGME home dir to %s\n", tempdir);
240
/* Create new GPGME "context" */
241
rc = gpgme_new(&(mc.ctx));
242
if(rc != GPG_ERR_NO_ERROR){
243
fprintf(stderr, "bad gpgme_new: %s: %s\n",
244
gpgme_strsource(rc), gpgme_strerror(rc));
248
if(not import_key(pubkey) or not import_key(seckey)){
256
* Decrypt OpenPGP data.
257
* Returns -1 on error
259
static ssize_t pgp_packet_decrypt(const char *cryptotext,
262
gpgme_data_t dh_crypto, dh_plain;
265
size_t plaintext_capacity = 0;
266
ssize_t plaintext_length = 0;
269
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
177
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
272
181
/* Create new GPGME data buffer from memory cryptotext */
273
182
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
275
if(rc != GPG_ERR_NO_ERROR){
184
if (rc != GPG_ERR_NO_ERROR){
276
185
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
277
186
gpgme_strsource(rc), gpgme_strerror(rc));
420
339
/* OpenPGP credentials */
421
gnutls_certificate_allocate_credentials(&mc.cred);
422
if(ret != GNUTLS_E_SUCCESS){
423
fprintf(stderr, "GnuTLS memory error: %s\n", /* Spurious warning
427
safer_gnutls_strerror(ret));
428
gnutls_global_deinit();
340
gnutls_certificate_allocate_credentials(&mc->cred);
341
if (ret != GNUTLS_E_SUCCESS){
342
fprintf (stderr, "GnuTLS memory error: %s\n",
343
safer_gnutls_strerror(ret));
344
gnutls_global_deinit ();
433
fprintf(stderr, "Attempting to use OpenPGP public key %s and"
434
" secret key %s as GnuTLS credentials\n", pubkeyfilename,
349
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
350
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
438
354
ret = gnutls_certificate_set_openpgp_key_file
439
(mc.cred, pubkeyfilename, seckeyfilename,
440
GNUTLS_OPENPGP_FMT_BASE64);
441
if(ret != GNUTLS_E_SUCCESS){
355
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
356
if (ret != GNUTLS_E_SUCCESS) {
443
358
"Error[%d] while reading the OpenPGP key pair ('%s',"
444
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
445
fprintf(stderr, "The GnuTLS error is: %s\n",
359
" '%s')\n", ret, pubkeyfile, seckeyfile);
360
fprintf(stdout, "The GnuTLS error is: %s\n",
446
361
safer_gnutls_strerror(ret));
450
365
/* GnuTLS server initialization */
451
ret = gnutls_dh_params_init(&mc.dh_params);
452
if(ret != GNUTLS_E_SUCCESS){
453
fprintf(stderr, "Error in GnuTLS DH parameter initialization:"
454
" %s\n", safer_gnutls_strerror(ret));
457
ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
458
if(ret != GNUTLS_E_SUCCESS){
459
fprintf(stderr, "Error in GnuTLS prime generation: %s\n",
460
safer_gnutls_strerror(ret));
464
gnutls_certificate_set_dh_params(mc.cred, mc.dh_params);
366
ret = gnutls_dh_params_init(&mc->dh_params);
367
if (ret != GNUTLS_E_SUCCESS) {
368
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
369
" %s\n", safer_gnutls_strerror(ret));
372
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
373
if (ret != GNUTLS_E_SUCCESS) {
374
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
375
safer_gnutls_strerror(ret));
379
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
470
gnutls_certificate_free_credentials(mc.cred);
385
gnutls_certificate_free_credentials(mc->cred);
471
386
gnutls_global_deinit();
472
gnutls_dh_params_deinit(mc.dh_params);
476
static int init_gnutls_session(gnutls_session_t *session){
391
static int init_gnutls_session(mandos_context *mc,
392
gnutls_session_t *session){
478
394
/* GnuTLS session creation */
479
395
ret = gnutls_init(session, GNUTLS_SERVER);
480
if(ret != GNUTLS_E_SUCCESS){
396
if (ret != GNUTLS_E_SUCCESS){
481
397
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
482
398
safer_gnutls_strerror(ret));
487
ret = gnutls_priority_set_direct(*session, mc.priority, &err);
488
if(ret != GNUTLS_E_SUCCESS){
403
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
404
if (ret != GNUTLS_E_SUCCESS) {
489
405
fprintf(stderr, "Syntax error at: %s\n", err);
490
406
fprintf(stderr, "GnuTLS error: %s\n",
491
407
safer_gnutls_strerror(ret));
492
gnutls_deinit(*session);
408
gnutls_deinit (*session);
497
413
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
499
if(ret != GNUTLS_E_SUCCESS){
415
if (ret != GNUTLS_E_SUCCESS) {
500
416
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
501
417
safer_gnutls_strerror(ret));
502
gnutls_deinit(*session);
418
gnutls_deinit (*session);
506
422
/* ignore client certificate if any. */
507
gnutls_certificate_server_set_request(*session,
423
gnutls_certificate_server_set_request (*session,
510
gnutls_dh_set_prime_bits(*session, mc.dh_bits);
426
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
880
sig_atomic_t quit_now = 0;
882
/* stop main loop after sigterm has been called */
883
static void handle_sigterm(__attribute__((unused)) int sig){
888
int old_errno = errno;
889
if(mc.simple_poll != NULL){
890
avahi_simple_poll_quit(mc.simple_poll);
743
/* Combines file name and path and returns the malloced new
744
string. some sane checks could/should be added */
745
static const char *combinepath(const char *first, const char *second){
746
size_t f_len = strlen(first);
747
size_t s_len = strlen(second);
748
char *tmp = malloc(f_len + s_len + 2);
753
memcpy(tmp, first, f_len); /* Spurious warning */
757
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
759
tmp[f_len + 1 + s_len] = '\0';
895
764
int main(int argc, char *argv[]){
896
AvahiSServiceBrowser *sb = NULL;
901
int exitcode = EXIT_SUCCESS;
902
const char *interface = "eth0";
903
struct ifreq network;
907
char *connect_to = NULL;
908
char tempdir[] = "/tmp/mandosXXXXXX";
909
bool tempdir_created = false;
910
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
911
const char *seckey = PATHDIR "/" SECKEY;
912
const char *pubkey = PATHDIR "/" PUBKEY;
914
bool gnutls_initialized = false;
915
bool gpgme_initialized = false;
918
struct sigaction old_sigterm_action;
919
struct sigaction sigterm_action = { .sa_handler = handle_sigterm };
922
struct argp_option options[] = {
923
{ .name = "debug", .key = 128,
924
.doc = "Debug mode", .group = 3 },
925
{ .name = "connect", .key = 'c',
926
.arg = "ADDRESS:PORT",
927
.doc = "Connect directly to a specific Mandos server",
929
{ .name = "interface", .key = 'i',
931
.doc = "Network interface that will be used to search for"
934
{ .name = "seckey", .key = 's',
936
.doc = "OpenPGP secret key file base name",
938
{ .name = "pubkey", .key = 'p',
940
.doc = "OpenPGP public key file base name",
942
{ .name = "dh-bits", .key = 129,
944
.doc = "Bit length of the prime number used in the"
945
" Diffie-Hellman key exchange",
947
{ .name = "priority", .key = 130,
949
.doc = "GnuTLS priority string for the TLS handshake",
951
{ .name = "delay", .key = 131,
953
.doc = "Maximum delay to wait for interface startup",
958
error_t parse_opt(int key, char *arg,
959
struct argp_state *state){
961
case 128: /* --debug */
964
case 'c': /* --connect */
967
case 'i': /* --interface */
970
case 's': /* --seckey */
973
case 'p': /* --pubkey */
976
case 129: /* --dh-bits */
978
tmpmax = strtoimax(arg, &tmp, 10);
979
if(errno != 0 or tmp == arg or *tmp != '\0'
980
or tmpmax != (typeof(mc.dh_bits))tmpmax){
981
fprintf(stderr, "Bad number of DH bits\n");
984
mc.dh_bits = (typeof(mc.dh_bits))tmpmax;
986
case 130: /* --priority */
989
case 131: /* --delay */
991
delay = strtof(arg, &tmp);
992
if(errno != 0 or tmp == arg or *tmp != '\0'){
993
fprintf(stderr, "Bad delay\n");
1002
return ARGP_ERR_UNKNOWN;
1007
struct argp argp = { .options = options, .parser = parse_opt,
1009
.doc = "Mandos client -- Get and decrypt"
1010
" passwords from a Mandos server" };
1011
ret = argp_parse(&argp, argc, argv, 0, 0, NULL);
1012
if(ret == ARGP_ERR_UNKNOWN){
1013
fprintf(stderr, "Unknown error while parsing arguments\n");
1014
exitcode = EXIT_FAILURE;
1020
avahi_set_log_function(empty_log);
1023
/* Initialize Avahi early so avahi_simple_poll_quit() can be called
1024
from the signal handler */
1025
/* Initialize the pseudo-RNG for Avahi */
1026
srand((unsigned int) time(NULL));
1027
mc.simple_poll = avahi_simple_poll_new();
1028
if(mc.simple_poll == NULL){
1029
fprintf(stderr, "Avahi: Failed to create simple poll object.\n");
1030
exitcode = EXIT_FAILURE;
1034
sigemptyset(&sigterm_action.sa_mask);
1035
ret = sigaddset(&sigterm_action.sa_mask, SIGINT);
1037
perror("sigaddset");
1038
exitcode = EXIT_FAILURE;
1041
ret = sigaddset(&sigterm_action.sa_mask, SIGHUP);
1043
perror("sigaddset");
1044
exitcode = EXIT_FAILURE;
1047
ret = sigaddset(&sigterm_action.sa_mask, SIGTERM);
1049
perror("sigaddset");
1050
exitcode = EXIT_FAILURE;
1053
ret = sigaction(SIGTERM, &sigterm_action, &old_sigterm_action);
1055
perror("sigaction");
1056
exitcode = EXIT_FAILURE;
1060
/* If the interface is down, bring it up */
1061
if(interface[0] != '\0'){
1063
/* Lower kernel loglevel to KERN_NOTICE to avoid KERN_INFO
1064
messages to mess up the prompt */
1065
ret = klogctl(8, NULL, 5);
1066
bool restore_loglevel = true;
1068
restore_loglevel = false;
1071
#endif /* __linux__ */
1073
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1076
exitcode = EXIT_FAILURE;
1078
if(restore_loglevel){
1079
ret = klogctl(7, NULL, 0);
1084
#endif /* __linux__ */
1087
strcpy(network.ifr_name, interface);
1088
ret = ioctl(sd, SIOCGIFFLAGS, &network);
1090
perror("ioctl SIOCGIFFLAGS");
1092
if(restore_loglevel){
1093
ret = klogctl(7, NULL, 0);
1098
#endif /* __linux__ */
1099
exitcode = EXIT_FAILURE;
1102
if((network.ifr_flags & IFF_UP) == 0){
1103
network.ifr_flags |= IFF_UP;
1104
ret = ioctl(sd, SIOCSIFFLAGS, &network);
1106
perror("ioctl SIOCSIFFLAGS");
1107
exitcode = EXIT_FAILURE;
1109
if(restore_loglevel){
1110
ret = klogctl(7, NULL, 0);
765
AvahiSServiceBrowser *sb = NULL;
768
int exitcode = EXIT_SUCCESS;
769
const char *interface = "eth0";
770
struct ifreq network;
774
char *connect_to = NULL;
775
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
776
const char *pubkeyfile = "pubkey.txt";
777
const char *seckeyfile = "seckey.txt";
778
mandos_context mc = { .simple_poll = NULL, .server = NULL,
779
.dh_bits = 1024, .priority = "SECURE256"};
780
bool gnutls_initalized = false;
783
struct argp_option options[] = {
784
{ .name = "debug", .key = 128,
785
.doc = "Debug mode", .group = 3 },
786
{ .name = "connect", .key = 'c',
788
.doc = "Connect directly to a sepcified mandos server",
790
{ .name = "interface", .key = 'i',
792
.doc = "Interface that Avahi will conntect through",
794
{ .name = "keydir", .key = 'd',
796
.doc = "Directory where the openpgp keyring is",
798
{ .name = "seckey", .key = 's',
800
.doc = "Secret openpgp key for gnutls authentication",
802
{ .name = "pubkey", .key = 'p',
804
.doc = "Public openpgp key for gnutls authentication",
806
{ .name = "dh-bits", .key = 129,
808
.doc = "dh-bits to use in gnutls communication",
810
{ .name = "priority", .key = 130,
812
.doc = "GNUTLS priority", .group = 1 },
817
error_t parse_opt (int key, char *arg,
818
struct argp_state *state) {
819
/* Get the INPUT argument from `argp_parse', which we know is
820
a pointer to our plugin list pointer. */
842
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
857
return ARGP_ERR_UNKNOWN;
1115
#endif /* __linux__ */
1119
/* sleep checking until interface is running */
1120
for(int i=0; i < delay * 4; i++){
862
struct argp argp = { .options = options, .parser = parse_opt,
864
.doc = "Mandos client -- Get and decrypt"
865
" passwords from mandos server" };
866
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
867
if (ret == ARGP_ERR_UNKNOWN){
868
fprintf(stderr, "Unkown error while parsing arguments\n");
869
exitcode = EXIT_FAILURE;
874
pubkeyfile = combinepath(keydir, pubkeyfile);
875
if (pubkeyfile == NULL){
876
perror("combinepath");
877
exitcode = EXIT_FAILURE;
881
seckeyfile = combinepath(keydir, seckeyfile);
882
if (seckeyfile == NULL){
883
perror("combinepath");
887
ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);
889
fprintf(stderr, "init_gnutls_global\n");
892
gnutls_initalized = true;
895
/* If the interface is down, bring it up */
897
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
900
exitcode = EXIT_FAILURE;
903
strcpy(network.ifr_name, interface); /* Spurious warning */
1121
904
ret = ioctl(sd, SIOCGIFFLAGS, &network);
1123
906
perror("ioctl SIOCGIFFLAGS");
1124
} else if(network.ifr_flags & IFF_RUNNING){
1127
struct timespec sleeptime = { .tv_nsec = 250000000 };
1128
ret = nanosleep(&sleeptime, NULL);
1129
if(ret == -1 and errno != EINTR){
1130
perror("nanosleep");
1133
ret = (int)TEMP_FAILURE_RETRY(close(sd));
1138
if(restore_loglevel){
1139
/* Restores kernel loglevel to default */
1140
ret = klogctl(7, NULL, 0);
1145
#endif /* __linux__ */
1162
ret = init_gnutls_global(pubkey, seckey);
1164
fprintf(stderr, "init_gnutls_global failed\n");
1165
exitcode = EXIT_FAILURE;
1168
gnutls_initialized = true;
1171
if(mkdtemp(tempdir) == NULL){
1175
tempdir_created = true;
1177
if(not init_gpgme(pubkey, seckey, tempdir)){
1178
fprintf(stderr, "init_gpgme failed\n");
1179
exitcode = EXIT_FAILURE;
1182
gpgme_initialized = true;
1185
if(interface[0] != '\0'){
907
exitcode = EXIT_FAILURE;
910
if((network.ifr_flags & IFF_UP) == 0){
911
network.ifr_flags |= IFF_UP;
912
ret = ioctl(sd, SIOCSIFFLAGS, &network);
914
perror("ioctl SIOCSIFFLAGS");
915
exitcode = EXIT_FAILURE;
1186
935
if_index = (AvahiIfIndex) if_nametoindex(interface);
1187
936
if(if_index == 0){
1188
937
fprintf(stderr, "No such interface: \"%s\"\n", interface);
1189
exitcode = EXIT_FAILURE;
1194
if(connect_to != NULL){
1195
/* Connect directly, do not use Zeroconf */
1196
/* (Mainly meant for debugging) */
1197
char *address = strrchr(connect_to, ':');
1198
if(address == NULL){
1199
fprintf(stderr, "No colon in address\n");
1200
exitcode = EXIT_FAILURE;
1205
tmpmax = strtoimax(address+1, &tmp, 10);
1206
if(errno != 0 or tmp == address+1 or *tmp != '\0'
1207
or tmpmax != (uint16_t)tmpmax){
1208
fprintf(stderr, "Bad port number\n");
1209
exitcode = EXIT_FAILURE;
1212
port = (uint16_t)tmpmax;
1214
address = connect_to;
1215
/* Colon in address indicates IPv6 */
1217
if(strchr(address, ':') != NULL){
1222
ret = start_mandos_communication(address, port, if_index, af);
1224
exitcode = EXIT_FAILURE;
1226
exitcode = EXIT_SUCCESS;
1232
AvahiServerConfig config;
1233
/* Do not publish any local Zeroconf records */
1234
avahi_server_config_init(&config);
1235
config.publish_hinfo = 0;
1236
config.publish_addresses = 0;
1237
config.publish_workstation = 0;
1238
config.publish_domain = 0;
1240
/* Allocate a new server */
1241
mc.server = avahi_server_new(avahi_simple_poll_get
1242
(mc.simple_poll), &config, NULL,
1245
/* Free the Avahi configuration data */
1246
avahi_server_config_free(&config);
1249
/* Check if creating the Avahi server object succeeded */
1250
if(mc.server == NULL){
1251
fprintf(stderr, "Failed to create Avahi server: %s\n",
1252
avahi_strerror(error));
1253
exitcode = EXIT_FAILURE;
1257
/* Create the Avahi service browser */
1258
sb = avahi_s_service_browser_new(mc.server, if_index,
1259
AVAHI_PROTO_UNSPEC, "_mandos._tcp",
1260
NULL, 0, browse_callback, NULL);
1262
fprintf(stderr, "Failed to create service browser: %s\n",
1263
avahi_strerror(avahi_server_errno(mc.server)));
1264
exitcode = EXIT_FAILURE;
1268
/* Run the main loop */
1271
fprintf(stderr, "Starting Avahi loop search\n");
1274
avahi_simple_poll_loop(mc.simple_poll);
941
if(connect_to != NULL){
942
/* Connect directly, do not use Zeroconf */
943
/* (Mainly meant for debugging) */
944
char *address = strrchr(connect_to, ':');
946
fprintf(stderr, "No colon in address\n");
947
exitcode = EXIT_FAILURE;
951
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
953
perror("Bad port number");
954
exitcode = EXIT_FAILURE;
958
address = connect_to;
959
ret = start_mandos_communication(address, port, if_index, &mc);
961
exitcode = EXIT_FAILURE;
963
exitcode = EXIT_SUCCESS;
969
avahi_set_log_function(empty_log);
972
/* Initialize the pseudo-RNG for Avahi */
973
srand((unsigned int) time(NULL));
975
/* Allocate main Avahi loop object */
976
mc.simple_poll = avahi_simple_poll_new();
977
if (mc.simple_poll == NULL) {
978
fprintf(stderr, "Avahi: Failed to create simple poll"
980
exitcode = EXIT_FAILURE;
985
AvahiServerConfig config;
986
/* Do not publish any local Zeroconf records */
987
avahi_server_config_init(&config);
988
config.publish_hinfo = 0;
989
config.publish_addresses = 0;
990
config.publish_workstation = 0;
991
config.publish_domain = 0;
993
/* Allocate a new server */
994
mc.server = avahi_server_new(avahi_simple_poll_get
995
(mc.simple_poll), &config, NULL,
998
/* Free the Avahi configuration data */
999
avahi_server_config_free(&config);
1002
/* Check if creating the Avahi server object succeeded */
1003
if (mc.server == NULL) {
1004
fprintf(stderr, "Failed to create Avahi server: %s\n",
1005
avahi_strerror(error));
1006
exitcode = EXIT_FAILURE;
1010
/* Create the Avahi service browser */
1011
sb = avahi_s_service_browser_new(mc.server, if_index,
1013
"_mandos._tcp", NULL, 0,
1014
browse_callback, &mc);
1016
fprintf(stderr, "Failed to create service browser: %s\n",
1017
avahi_strerror(avahi_server_errno(mc.server)));
1018
exitcode = EXIT_FAILURE;
1022
/* Run the main loop */
1025
fprintf(stderr, "Starting Avahi loop search\n");
1028
avahi_simple_poll_loop(mc.simple_poll);
1279
fprintf(stderr, "%s exiting\n", argv[0]);
1282
/* Cleanup things */
1284
avahi_s_service_browser_free(sb);
1286
if(mc.server != NULL)
1287
avahi_server_free(mc.server);
1289
if(mc.simple_poll != NULL)
1290
avahi_simple_poll_free(mc.simple_poll);
1292
if(gnutls_initialized){
1293
gnutls_certificate_free_credentials(mc.cred);
1294
gnutls_global_deinit();
1295
gnutls_dh_params_deinit(mc.dh_params);
1298
if(gpgme_initialized){
1299
gpgme_release(mc.ctx);
1302
/* Removes the temp directory used by GPGME */
1303
if(tempdir_created){
1305
struct dirent *direntry;
1306
d = opendir(tempdir);
1308
if(errno != ENOENT){
1313
direntry = readdir(d);
1314
if(direntry == NULL){
1317
/* Skip "." and ".." */
1318
if(direntry->d_name[0] == '.'
1319
and (direntry->d_name[1] == '\0'
1320
or (direntry->d_name[1] == '.'
1321
and direntry->d_name[2] == '\0'))){
1324
char *fullname = NULL;
1325
ret = asprintf(&fullname, "%s/%s", tempdir,
1331
ret = remove(fullname);
1333
fprintf(stderr, "remove(\"%s\"): %s\n", fullname,
1340
ret = rmdir(tempdir);
1341
if(ret == -1 and errno != ENOENT){
1033
fprintf(stderr, "%s exiting\n", argv[0]);
1036
/* Cleanup things */
1038
avahi_s_service_browser_free(sb);
1040
if (mc.server != NULL)
1041
avahi_server_free(mc.server);
1043
if (mc.simple_poll != NULL)
1044
avahi_simple_poll_free(mc.simple_poll);
1048
if (gnutls_initalized){
1049
gnutls_certificate_free_credentials(mc.cred);
1050
gnutls_global_deinit ();