36
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), asprintf() */
38
37
#include <stdio.h> /* fprintf(), stderr, fwrite(),
39
stdout, ferror(), remove() */
40
39
#include <stdint.h> /* uint16_t, uint32_t */
41
40
#include <stddef.h> /* NULL, size_t, ssize_t */
42
41
#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,
44
#include <stdbool.h> /* bool, false, true */
43
#include <stdbool.h> /* bool, true */
45
44
#include <string.h> /* memset(), strcmp(), strlen(),
46
45
strerror(), asprintf(), strcpy() */
47
#include <sys/ioctl.h> /* ioctl */
46
#include <sys/ioctl.h> /* ioctl */
48
47
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
49
48
sockaddr_in6, PF_INET6,
50
SOCK_STREAM, uid_t, gid_t, open(),
52
#include <sys/stat.h> /* open() */
49
SOCK_STREAM, INET6_ADDRSTRLEN,
51
#include <inttypes.h> /* PRIu16 */
53
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
54
inet_pton(), connect() */
55
#include <fcntl.h> /* open() */
56
#include <dirent.h> /* opendir(), struct dirent, readdir()
58
#include <inttypes.h> /* PRIu16, PRIdMAX, intmax_t,
53
struct in6_addr, inet_pton(),
60
55
#include <assert.h> /* assert() */
61
56
#include <errno.h> /* perror(), errno */
62
#include <time.h> /* nanosleep(), time() */
57
#include <time.h> /* time() */
63
58
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
64
59
SIOCSIFFLAGS, if_indextoname(),
65
60
if_nametoindex(), IF_NAMESIZE */
66
#include <netinet/in.h> /* IN6_IS_ADDR_LINKLOCAL,
67
INET_ADDRSTRLEN, INET6_ADDRSTRLEN
69
61
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
70
62
getuid(), getgid(), setuid(),
64
#include <netinet/in.h>
72
65
#include <arpa/inet.h> /* inet_pton(), htons */
73
#include <iso646.h> /* not, or, and */
66
#include <iso646.h> /* not, and */
74
67
#include <argp.h> /* struct argp_option, error_t, struct
75
68
argp_state, struct argp,
76
69
argp_parse(), ARGP_KEY_ARG,
77
70
ARGP_KEY_END, ARGP_ERR_UNKNOWN */
78
#include <signal.h> /* sigemptyset(), sigaddset(),
79
sigaction(), SIGTERM, sigaction,
83
#include <sys/klog.h> /* klogctl() */
84
#endif /* __linux__ */
87
73
/* All Avahi types, constants and functions
135
* Decrypt OpenPGP data using keyrings in HOMEDIR.
136
* Returns -1 on error
161
static bool init_gpgme(const char *seckey,
162
const char *pubkey, const char *tempdir){
138
static ssize_t pgp_packet_decrypt (const char *cryptotext,
141
const char *homedir){
142
gpgme_data_t dh_crypto, dh_plain;
164
144
gpgme_error_t rc;
146
size_t plaintext_capacity = 0;
147
ssize_t plaintext_length = 0;
165
148
gpgme_engine_info_t engine_info;
169
* Helper function to insert pub and seckey to the engine keyring.
171
bool import_key(const char *filename){
173
gpgme_data_t pgp_data;
175
fd = (int)TEMP_FAILURE_RETRY(open(filename, O_RDONLY));
181
rc = gpgme_data_new_from_fd(&pgp_data, fd);
182
if(rc != GPG_ERR_NO_ERROR){
183
fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
184
gpgme_strsource(rc), gpgme_strerror(rc));
188
rc = gpgme_op_import(mc.ctx, pgp_data);
189
if(rc != GPG_ERR_NO_ERROR){
190
fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
191
gpgme_strsource(rc), gpgme_strerror(rc));
195
ret = (int)TEMP_FAILURE_RETRY(close(fd));
199
gpgme_data_release(pgp_data);
204
fprintf(stderr, "Initializing GPGME\n");
151
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
208
155
gpgme_check_version(NULL);
209
156
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
210
if(rc != GPG_ERR_NO_ERROR){
157
if (rc != GPG_ERR_NO_ERROR){
211
158
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
212
159
gpgme_strsource(rc), gpgme_strerror(rc));
216
/* Set GPGME home directory for the OpenPGP engine only */
217
rc = gpgme_get_engine_info(&engine_info);
218
if(rc != GPG_ERR_NO_ERROR){
163
/* Set GPGME home directory for the OpenPGP engine only */
164
rc = gpgme_get_engine_info (&engine_info);
165
if (rc != GPG_ERR_NO_ERROR){
219
166
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
220
167
gpgme_strsource(rc), gpgme_strerror(rc));
223
170
while(engine_info != NULL){
224
171
if(engine_info->protocol == GPGME_PROTOCOL_OpenPGP){
225
172
gpgme_set_engine_info(GPGME_PROTOCOL_OpenPGP,
226
engine_info->file_name, tempdir);
173
engine_info->file_name, homedir);
229
176
engine_info = engine_info->next;
231
178
if(engine_info == NULL){
232
fprintf(stderr, "Could not set GPGME home dir to %s\n", tempdir);
236
/* Create new GPGME "context" */
237
rc = gpgme_new(&(mc.ctx));
238
if(rc != GPG_ERR_NO_ERROR){
239
fprintf(stderr, "bad gpgme_new: %s: %s\n",
240
gpgme_strsource(rc), gpgme_strerror(rc));
244
if(not import_key(pubkey) or not import_key(seckey)){
252
* Decrypt OpenPGP data.
253
* Returns -1 on error
255
static ssize_t pgp_packet_decrypt(const char *cryptotext,
258
gpgme_data_t dh_crypto, dh_plain;
261
size_t plaintext_capacity = 0;
262
ssize_t plaintext_length = 0;
265
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
179
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
268
183
/* Create new GPGME data buffer from memory cryptotext */
269
184
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
271
if(rc != GPG_ERR_NO_ERROR){
186
if (rc != GPG_ERR_NO_ERROR){
272
187
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
273
188
gpgme_strsource(rc), gpgme_strerror(rc));
416
341
/* OpenPGP credentials */
417
gnutls_certificate_allocate_credentials(&mc.cred);
418
if(ret != GNUTLS_E_SUCCESS){
419
fprintf(stderr, "GnuTLS memory error: %s\n", /* Spurious warning
423
safer_gnutls_strerror(ret));
424
gnutls_global_deinit();
342
gnutls_certificate_allocate_credentials(&mc->cred);
343
if (ret != GNUTLS_E_SUCCESS){
344
fprintf (stderr, "GnuTLS memory error: %s\n", /* Spurious
346
safer_gnutls_strerror(ret));
347
gnutls_global_deinit ();
429
fprintf(stderr, "Attempting to use OpenPGP public key %s and"
430
" secret key %s as GnuTLS credentials\n", pubkeyfilename,
352
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
353
" and keyfile %s as GnuTLS credentials\n", pubkeyfilename,
434
357
ret = gnutls_certificate_set_openpgp_key_file
435
(mc.cred, pubkeyfilename, seckeyfilename,
358
(mc->cred, pubkeyfilename, seckeyfilename,
436
359
GNUTLS_OPENPGP_FMT_BASE64);
437
if(ret != GNUTLS_E_SUCCESS){
360
if (ret != GNUTLS_E_SUCCESS) {
439
362
"Error[%d] while reading the OpenPGP key pair ('%s',"
440
363
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
441
fprintf(stderr, "The GnuTLS error is: %s\n",
364
fprintf(stdout, "The GnuTLS error is: %s\n",
442
365
safer_gnutls_strerror(ret));
446
369
/* GnuTLS server initialization */
447
ret = gnutls_dh_params_init(&mc.dh_params);
448
if(ret != GNUTLS_E_SUCCESS){
449
fprintf(stderr, "Error in GnuTLS DH parameter initialization:"
450
" %s\n", safer_gnutls_strerror(ret));
453
ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
454
if(ret != GNUTLS_E_SUCCESS){
455
fprintf(stderr, "Error in GnuTLS prime generation: %s\n",
456
safer_gnutls_strerror(ret));
460
gnutls_certificate_set_dh_params(mc.cred, mc.dh_params);
370
ret = gnutls_dh_params_init(&mc->dh_params);
371
if (ret != GNUTLS_E_SUCCESS) {
372
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
373
" %s\n", safer_gnutls_strerror(ret));
376
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
377
if (ret != GNUTLS_E_SUCCESS) {
378
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
379
safer_gnutls_strerror(ret));
383
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
466
gnutls_certificate_free_credentials(mc.cred);
389
gnutls_certificate_free_credentials(mc->cred);
467
390
gnutls_global_deinit();
468
gnutls_dh_params_deinit(mc.dh_params);
472
static int init_gnutls_session(gnutls_session_t *session){
395
static int init_gnutls_session(mandos_context *mc,
396
gnutls_session_t *session){
474
398
/* GnuTLS session creation */
475
399
ret = gnutls_init(session, GNUTLS_SERVER);
476
if(ret != GNUTLS_E_SUCCESS){
400
if (ret != GNUTLS_E_SUCCESS){
477
401
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
478
402
safer_gnutls_strerror(ret));
483
ret = gnutls_priority_set_direct(*session, mc.priority, &err);
484
if(ret != GNUTLS_E_SUCCESS){
407
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
408
if (ret != GNUTLS_E_SUCCESS) {
485
409
fprintf(stderr, "Syntax error at: %s\n", err);
486
410
fprintf(stderr, "GnuTLS error: %s\n",
487
411
safer_gnutls_strerror(ret));
488
gnutls_deinit(*session);
412
gnutls_deinit (*session);
493
417
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
495
if(ret != GNUTLS_E_SUCCESS){
419
if (ret != GNUTLS_E_SUCCESS) {
496
420
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
497
421
safer_gnutls_strerror(ret));
498
gnutls_deinit(*session);
422
gnutls_deinit (*session);
502
426
/* ignore client certificate if any. */
503
gnutls_certificate_server_set_request(*session,
427
gnutls_certificate_server_set_request (*session,
506
gnutls_dh_set_prime_bits(*session, mc.dh_bits);
430
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
876
sig_atomic_t quit_now = 0;
878
/* stop main loop after sigterm has been called */
879
static void handle_sigterm(__attribute__((unused)) int sig){
884
int old_errno = errno;
885
if(mc.simple_poll != NULL){
886
avahi_simple_poll_quit(mc.simple_poll);
749
/* Combines file name and path and returns the malloced new
750
string. some sane checks could/should be added */
751
static char *combinepath(const char *first, const char *second){
753
int ret = asprintf(&tmp, "%s/%s", first, second);
891
761
int main(int argc, char *argv[]){
892
AvahiSServiceBrowser *sb = NULL;
897
int exitcode = EXIT_SUCCESS;
898
const char *interface = "eth0";
899
struct ifreq network;
903
char *connect_to = NULL;
904
char tempdir[] = "/tmp/mandosXXXXXX";
905
bool tempdir_created = false;
906
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
907
const char *seckey = PATHDIR "/" SECKEY;
908
const char *pubkey = PATHDIR "/" PUBKEY;
910
bool gnutls_initialized = false;
911
bool gpgme_initialized = false;
914
struct sigaction old_sigterm_action;
915
struct sigaction sigterm_action = { .sa_handler = handle_sigterm };
918
struct argp_option options[] = {
919
{ .name = "debug", .key = 128,
920
.doc = "Debug mode", .group = 3 },
921
{ .name = "connect", .key = 'c',
922
.arg = "ADDRESS:PORT",
923
.doc = "Connect directly to a specific Mandos server",
925
{ .name = "interface", .key = 'i',
927
.doc = "Network interface that will be used to search for"
930
{ .name = "seckey", .key = 's',
932
.doc = "OpenPGP secret key file base name",
934
{ .name = "pubkey", .key = 'p',
936
.doc = "OpenPGP public key file base name",
938
{ .name = "dh-bits", .key = 129,
940
.doc = "Bit length of the prime number used in the"
941
" Diffie-Hellman key exchange",
943
{ .name = "priority", .key = 130,
945
.doc = "GnuTLS priority string for the TLS handshake",
947
{ .name = "delay", .key = 131,
949
.doc = "Maximum delay to wait for interface startup",
954
error_t parse_opt(int key, char *arg,
955
struct argp_state *state){
957
case 128: /* --debug */
960
case 'c': /* --connect */
963
case 'i': /* --interface */
966
case 's': /* --seckey */
969
case 'p': /* --pubkey */
972
case 129: /* --dh-bits */
974
tmpmax = strtoimax(arg, &tmp, 10);
975
if(errno != 0 or tmp == arg or *tmp != '\0'
976
or tmpmax != (typeof(mc.dh_bits))tmpmax){
977
fprintf(stderr, "Bad number of DH bits\n");
980
mc.dh_bits = (typeof(mc.dh_bits))tmpmax;
982
case 130: /* --priority */
985
case 131: /* --delay */
987
delay = strtof(arg, &tmp);
988
if(errno != 0 or tmp == arg or *tmp != '\0'){
989
fprintf(stderr, "Bad delay\n");
998
return ARGP_ERR_UNKNOWN;
1003
struct argp argp = { .options = options, .parser = parse_opt,
1005
.doc = "Mandos client -- Get and decrypt"
1006
" passwords from a Mandos server" };
1007
ret = argp_parse(&argp, argc, argv, 0, 0, NULL);
1008
if(ret == ARGP_ERR_UNKNOWN){
1009
fprintf(stderr, "Unknown error while parsing arguments\n");
1010
exitcode = EXIT_FAILURE;
1016
avahi_set_log_function(empty_log);
1019
/* Initialize Avahi early so avahi_simple_poll_quit() can be called
1020
from the signal handler */
1021
/* Initialize the pseudo-RNG for Avahi */
1022
srand((unsigned int) time(NULL));
1023
mc.simple_poll = avahi_simple_poll_new();
1024
if(mc.simple_poll == NULL){
1025
fprintf(stderr, "Avahi: Failed to create simple poll object.\n");
1026
exitcode = EXIT_FAILURE;
1030
sigemptyset(&sigterm_action.sa_mask);
1031
ret = sigaddset(&sigterm_action.sa_mask, SIGINT);
1033
perror("sigaddset");
1034
exitcode = EXIT_FAILURE;
1037
ret = sigaddset(&sigterm_action.sa_mask, SIGHUP);
1039
perror("sigaddset");
1040
exitcode = EXIT_FAILURE;
1043
ret = sigaddset(&sigterm_action.sa_mask, SIGTERM);
1045
perror("sigaddset");
1046
exitcode = EXIT_FAILURE;
1049
ret = sigaction(SIGTERM, &sigterm_action, &old_sigterm_action);
1051
perror("sigaction");
1052
exitcode = EXIT_FAILURE;
1056
/* If the interface is down, bring it up */
1057
if(interface[0] != '\0'){
1059
/* Lower kernel loglevel to KERN_NOTICE to avoid KERN_INFO
1060
messages to mess up the prompt */
1061
ret = klogctl(8, NULL, 5);
1062
bool restore_loglevel = true;
1064
restore_loglevel = false;
1067
#endif /* __linux__ */
1069
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1072
exitcode = EXIT_FAILURE;
1074
if(restore_loglevel){
1075
ret = klogctl(7, NULL, 0);
1080
#endif /* __linux__ */
1083
strcpy(network.ifr_name, interface);
1084
ret = ioctl(sd, SIOCGIFFLAGS, &network);
1086
perror("ioctl SIOCGIFFLAGS");
1088
if(restore_loglevel){
1089
ret = klogctl(7, NULL, 0);
1094
#endif /* __linux__ */
1095
exitcode = EXIT_FAILURE;
1098
if((network.ifr_flags & IFF_UP) == 0){
1099
network.ifr_flags |= IFF_UP;
1100
ret = ioctl(sd, SIOCSIFFLAGS, &network);
1102
perror("ioctl SIOCSIFFLAGS");
1103
exitcode = EXIT_FAILURE;
1105
if(restore_loglevel){
1106
ret = klogctl(7, NULL, 0);
762
AvahiSServiceBrowser *sb = NULL;
765
int exitcode = EXIT_SUCCESS;
766
const char *interface = "eth0";
767
struct ifreq network;
771
char *connect_to = NULL;
772
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
773
char *pubkeyfilename = NULL;
774
char *seckeyfilename = NULL;
775
const char *pubkeyname = "pubkey.txt";
776
const char *seckeyname = "seckey.txt";
777
mandos_context mc = { .simple_poll = NULL, .server = NULL,
778
.dh_bits = 1024, .priority = "SECURE256"};
779
bool gnutls_initalized = false;
782
struct argp_option options[] = {
783
{ .name = "debug", .key = 128,
784
.doc = "Debug mode", .group = 3 },
785
{ .name = "connect", .key = 'c',
787
.doc = "Connect directly to a sepcified mandos server",
789
{ .name = "interface", .key = 'i',
791
.doc = "Interface that Avahi will conntect through",
793
{ .name = "keydir", .key = 'd',
795
.doc = "Directory where the openpgp keyring is",
797
{ .name = "seckey", .key = 's',
799
.doc = "Secret openpgp key for gnutls authentication",
801
{ .name = "pubkey", .key = 'p',
803
.doc = "Public openpgp key for gnutls authentication",
805
{ .name = "dh-bits", .key = 129,
807
.doc = "dh-bits to use in gnutls communication",
809
{ .name = "priority", .key = 130,
811
.doc = "GNUTLS priority", .group = 1 },
816
error_t parse_opt (int key, char *arg,
817
struct argp_state *state) {
818
/* Get the INPUT argument from `argp_parse', which we know is
819
a pointer to our plugin list pointer. */
841
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
855
return ARGP_ERR_UNKNOWN;
1111
#endif /* __linux__ */
1115
/* sleep checking until interface is running */
1116
for(int i=0; i < delay * 4; i++){
860
struct argp argp = { .options = options, .parser = parse_opt,
862
.doc = "Mandos client -- Get and decrypt"
863
" passwords from mandos server" };
864
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
865
if (ret == ARGP_ERR_UNKNOWN){
866
fprintf(stderr, "Unknown error while parsing arguments\n");
867
exitcode = EXIT_FAILURE;
872
pubkeyfilename = combinepath(keydir, pubkeyname);
873
if (pubkeyfilename == NULL){
874
perror("combinepath");
875
exitcode = EXIT_FAILURE;
879
seckeyfilename = combinepath(keydir, seckeyname);
880
if (seckeyfilename == NULL){
881
perror("combinepath");
882
exitcode = EXIT_FAILURE;
886
ret = init_gnutls_global(&mc, pubkeyfilename, seckeyfilename);
888
fprintf(stderr, "init_gnutls_global failed\n");
889
exitcode = EXIT_FAILURE;
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);
1117
904
ret = ioctl(sd, SIOCGIFFLAGS, &network);
1119
906
perror("ioctl SIOCGIFFLAGS");
1120
} else if(network.ifr_flags & IFF_RUNNING){
1123
struct timespec sleeptime = { .tv_nsec = 250000000 };
1124
ret = nanosleep(&sleeptime, NULL);
1125
if(ret == -1 and errno != EINTR){
1126
perror("nanosleep");
1129
ret = (int)TEMP_FAILURE_RETRY(close(sd));
1134
if(restore_loglevel){
1135
/* Restores kernel loglevel to default */
1136
ret = klogctl(7, NULL, 0);
1141
#endif /* __linux__ */
1158
ret = init_gnutls_global(pubkey, seckey);
1160
fprintf(stderr, "init_gnutls_global failed\n");
1161
exitcode = EXIT_FAILURE;
1164
gnutls_initialized = true;
1167
if(mkdtemp(tempdir) == NULL){
1171
tempdir_created = true;
1173
if(not init_gpgme(pubkey, seckey, tempdir)){
1174
fprintf(stderr, "init_gpgme failed\n");
1175
exitcode = EXIT_FAILURE;
1178
gpgme_initialized = true;
1181
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;
1182
935
if_index = (AvahiIfIndex) if_nametoindex(interface);
1183
936
if(if_index == 0){
1184
937
fprintf(stderr, "No such interface: \"%s\"\n", interface);
1185
exitcode = EXIT_FAILURE;
1190
if(connect_to != NULL){
1191
/* Connect directly, do not use Zeroconf */
1192
/* (Mainly meant for debugging) */
1193
char *address = strrchr(connect_to, ':');
1194
if(address == NULL){
1195
fprintf(stderr, "No colon in address\n");
1196
exitcode = EXIT_FAILURE;
1201
tmpmax = strtoimax(address+1, &tmp, 10);
1202
if(errno != 0 or tmp == address+1 or *tmp != '\0'
1203
or tmpmax != (uint16_t)tmpmax){
1204
fprintf(stderr, "Bad port number\n");
1205
exitcode = EXIT_FAILURE;
1208
port = (uint16_t)tmpmax;
1210
address = connect_to;
1211
/* Colon in address indicates IPv6 */
1213
if(strchr(address, ':') != NULL){
1218
ret = start_mandos_communication(address, port, if_index, af);
1220
exitcode = EXIT_FAILURE;
1222
exitcode = EXIT_SUCCESS;
1228
AvahiServerConfig config;
1229
/* Do not publish any local Zeroconf records */
1230
avahi_server_config_init(&config);
1231
config.publish_hinfo = 0;
1232
config.publish_addresses = 0;
1233
config.publish_workstation = 0;
1234
config.publish_domain = 0;
1236
/* Allocate a new server */
1237
mc.server = avahi_server_new(avahi_simple_poll_get
1238
(mc.simple_poll), &config, NULL,
1241
/* Free the Avahi configuration data */
1242
avahi_server_config_free(&config);
1245
/* Check if creating the Avahi server object succeeded */
1246
if(mc.server == NULL){
1247
fprintf(stderr, "Failed to create Avahi server: %s\n",
1248
avahi_strerror(error));
1249
exitcode = EXIT_FAILURE;
1253
/* Create the Avahi service browser */
1254
sb = avahi_s_service_browser_new(mc.server, if_index,
1255
AVAHI_PROTO_UNSPEC, "_mandos._tcp",
1256
NULL, 0, browse_callback, NULL);
1258
fprintf(stderr, "Failed to create service browser: %s\n",
1259
avahi_strerror(avahi_server_errno(mc.server)));
1260
exitcode = EXIT_FAILURE;
1264
/* Run the main loop */
1267
fprintf(stderr, "Starting Avahi loop search\n");
1270
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);
1275
fprintf(stderr, "%s exiting\n", argv[0]);
1278
/* Cleanup things */
1280
avahi_s_service_browser_free(sb);
1282
if(mc.server != NULL)
1283
avahi_server_free(mc.server);
1285
if(mc.simple_poll != NULL)
1286
avahi_simple_poll_free(mc.simple_poll);
1288
if(gnutls_initialized){
1289
gnutls_certificate_free_credentials(mc.cred);
1290
gnutls_global_deinit();
1291
gnutls_dh_params_deinit(mc.dh_params);
1294
if(gpgme_initialized){
1295
gpgme_release(mc.ctx);
1298
/* Removes the temp directory used by GPGME */
1299
if(tempdir_created){
1301
struct dirent *direntry;
1302
d = opendir(tempdir);
1304
if(errno != ENOENT){
1309
direntry = readdir(d);
1310
if(direntry == NULL){
1313
/* Skip "." and ".." */
1314
if(direntry->d_name[0] == '.'
1315
and (direntry->d_name[1] == '\0'
1316
or (direntry->d_name[1] == '.'
1317
and direntry->d_name[2] == '\0'))){
1320
char *fullname = NULL;
1321
ret = asprintf(&fullname, "%s/%s", tempdir,
1327
ret = remove(fullname);
1329
fprintf(stderr, "remove(\"%s\"): %s\n", fullname,
1336
ret = rmdir(tempdir);
1337
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);
1045
free(pubkeyfilename);
1046
free(seckeyfilename);
1048
if (gnutls_initalized){
1049
gnutls_certificate_free_credentials(mc.cred);
1050
gnutls_global_deinit ();