60
64
#include <string.h> /* memset */
61
65
#include <arpa/inet.h> /* inet_pton() */
62
66
#include <iso646.h> /* not */
67
#include <net/if.h> /* IF_NAMESIZE */
68
#include <argp.h> /* struct argp_option,
69
struct argp_state, struct argp,
65
72
#include <errno.h> /* perror() */
71
75
#define BUFFER_SIZE 256
74
static const char *certdir = "/conf/conf.d/mandos";
75
static const char *certfile = "openpgp-client.txt";
76
static const char *certkey = "openpgp-client-key.txt";
78
77
bool debug = false;
78
static const char *keydir = "/conf/conf.d/mandos";
79
static const char mandos_protocol_version[] = "1";
80
const char *argp_program_version = "mandosclient 0.9";
81
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
83
/* Used for passing in values through the Avahi callback functions */
81
85
AvahiSimplePoll *simple_poll;
82
86
AvahiServer *server;
83
87
gnutls_certificate_credentials_t cred;
84
88
unsigned int dh_bits;
89
gnutls_dh_params_t dh_params;
85
90
const char *priority;
88
static ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
94
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
95
* "buffer_capacity" is how much is currently allocated,
96
* "buffer_length" is how much is already used.
98
size_t adjustbuffer(char **buffer, size_t buffer_length,
99
size_t buffer_capacity){
100
if (buffer_length + BUFFER_SIZE > buffer_capacity){
101
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
105
buffer_capacity += BUFFER_SIZE;
107
return buffer_capacity;
111
* Decrypt OpenPGP data using keyrings in HOMEDIR.
112
* Returns -1 on error
114
static ssize_t pgp_packet_decrypt (const char *cryptotext,
90
117
const char *homedir){
91
118
gpgme_data_t dh_crypto, dh_plain;
95
ssize_t new_packet_capacity = 0;
96
ssize_t new_packet_length = 0;
122
size_t plaintext_capacity = 0;
123
ssize_t plaintext_length = 0;
97
124
gpgme_engine_info_t engine_info;
100
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
127
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
198
/* Delete the GPGME FILE pointer cryptotext data buffer */
199
gpgme_data_release(dh_crypto);
201
229
/* Seek back to the beginning of the GPGME plaintext data buffer */
202
230
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
203
231
perror("pgpme_data_seek");
232
plaintext_length = -1;
208
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
209
*new_packet = realloc(*new_packet,
210
(unsigned int)new_packet_capacity
212
if (*new_packet == NULL){
216
new_packet_capacity += BUFFER_SIZE;
238
plaintext_capacity = adjustbuffer(plaintext,
239
(size_t)plaintext_length,
241
if (plaintext_capacity == 0){
242
perror("adjustbuffer");
243
plaintext_length = -1;
219
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
247
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
221
249
/* Print the data, if any */
226
255
perror("gpgme_data_read");
256
plaintext_length = -1;
229
new_packet_length += ret;
259
plaintext_length += ret;
232
/* FIXME: check characters before printing to screen so to not print
233
terminal control characters */
235
/* fprintf(stderr, "decrypted password is: "); */
236
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
237
/* fprintf(stderr, "\n"); */
263
fprintf(stderr, "Decrypted password is: ");
264
for(ssize_t i = 0; i < plaintext_length; i++){
265
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
267
fprintf(stderr, "\n");
272
/* Delete the GPGME cryptotext data buffer */
273
gpgme_data_release(dh_crypto);
240
275
/* Delete the GPGME plaintext data buffer */
241
276
gpgme_data_release(dh_plain);
242
return new_packet_length;
277
return plaintext_length;
245
280
static const char * safer_gnutls_strerror (int value) {
265
302
if ((ret = gnutls_global_init ())
266
303
!= GNUTLS_E_SUCCESS) {
267
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
304
fprintf (stderr, "GnuTLS global_init: %s\n",
305
safer_gnutls_strerror(ret));
310
/* "Use a log level over 10 to enable all debugging options."
272
313
gnutls_global_set_log_level(11);
273
314
gnutls_global_set_log_function(debuggnutls);
276
/* openpgp credentials */
277
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
317
/* OpenPGP credentials */
318
if ((ret = gnutls_certificate_allocate_credentials (&mc->cred))
278
319
!= GNUTLS_E_SUCCESS) {
279
fprintf (stderr, "memory error: %s\n",
320
fprintf (stderr, "GnuTLS memory error: %s\n",
280
321
safer_gnutls_strerror(ret));
322
gnutls_global_deinit ();
285
327
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
286
" and keyfile %s as GnuTLS credentials\n", certfile,
328
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
290
332
ret = gnutls_certificate_set_openpgp_key_file
291
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
333
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
292
334
if (ret != GNUTLS_E_SUCCESS) {
294
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
296
ret, certfile, certkey);
297
fprintf(stdout, "The Error is: %s\n",
336
"Error[%d] while reading the OpenPGP key pair ('%s',"
337
" '%s')\n", ret, pubkeyfile, seckeyfile);
338
fprintf(stdout, "The GnuTLS error is: %s\n",
298
339
safer_gnutls_strerror(ret));
302
//GnuTLS server initialization
303
if ((ret = gnutls_dh_params_init (&es->dh_params))
304
!= GNUTLS_E_SUCCESS) {
305
fprintf (stderr, "Error in dh parameter initialization: %s\n",
306
safer_gnutls_strerror(ret));
310
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
311
!= GNUTLS_E_SUCCESS) {
312
fprintf (stderr, "Error in prime generation: %s\n",
313
safer_gnutls_strerror(ret));
317
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
319
// GnuTLS session creation
320
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
321
!= GNUTLS_E_SUCCESS){
343
/* GnuTLS server initialization */
344
ret = gnutls_dh_params_init(&mc->dh_params);
345
if (ret != GNUTLS_E_SUCCESS) {
346
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
347
" %s\n", safer_gnutls_strerror(ret));
350
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
351
if (ret != GNUTLS_E_SUCCESS) {
352
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
353
safer_gnutls_strerror(ret));
357
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
363
gnutls_certificate_free_credentials (mc->cred);
364
gnutls_global_deinit ();
369
static int init_gnutls_session(mandos_context *mc,
370
gnutls_session_t *session){
372
/* GnuTLS session creation */
373
ret = gnutls_init(session, GNUTLS_SERVER);
374
if (ret != GNUTLS_E_SUCCESS){
322
375
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
323
376
safer_gnutls_strerror(ret));
326
if ((ret = gnutls_priority_set_direct (es->session, mc->priority, &err))
327
!= GNUTLS_E_SUCCESS) {
328
fprintf(stderr, "Syntax error at: %s\n", err);
329
fprintf(stderr, "GnuTLS error: %s\n",
330
safer_gnutls_strerror(ret));
381
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
382
if (ret != GNUTLS_E_SUCCESS) {
383
fprintf(stderr, "Syntax error at: %s\n", err);
384
fprintf(stderr, "GnuTLS error: %s\n",
385
safer_gnutls_strerror(ret));
386
gnutls_deinit (*session);
334
if ((ret = gnutls_credentials_set
335
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
336
!= GNUTLS_E_SUCCESS) {
337
fprintf(stderr, "Error setting a credentials set: %s\n",
391
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
393
if (ret != GNUTLS_E_SUCCESS) {
394
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
338
395
safer_gnutls_strerror(ret));
396
gnutls_deinit (*session);
342
400
/* ignore client certificate if any. */
343
gnutls_certificate_server_set_request (es->session,
401
gnutls_certificate_server_set_request (*session,
344
402
GNUTLS_CERT_IGNORE);
346
gnutls_dh_set_prime_bits (es->session, DH_BITS);
404
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
409
/* Avahi log function callback */
351
410
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
352
411
__attribute__((unused)) const char *txt){}
413
/* Called when a Mandos server is found */
354
414
static int start_mandos_communication(const char *ip, uint16_t port,
355
415
AvahiIfIndex if_index,
356
416
mandos_context *mc){
358
struct sockaddr_in6 to;
359
encrypted_session es;
418
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
360
419
char *buffer = NULL;
361
420
char *decrypted_buffer;
362
421
size_t buffer_length = 0;
363
422
size_t buffer_capacity = 0;
364
423
ssize_t decrypted_buffer_size;
367
426
char interface[IF_NAMESIZE];
427
gnutls_session_t session;
429
ret = init_gnutls_session (mc, &session);
370
435
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
381
446
if(if_indextoname((unsigned int)if_index, interface) == NULL){
383
perror("if_indextoname");
447
perror("if_indextoname");
388
450
fprintf(stderr, "Binding to interface %s\n", interface);
391
453
memset(&to,0,sizeof(to)); /* Spurious warning */
392
to.sin6_family = AF_INET6;
393
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
454
to.in6.sin6_family = AF_INET6;
455
/* It would be nice to have a way to detect if we were passed an
456
IPv4 address here. Now we assume an IPv6 address. */
457
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
395
459
perror("inet_pton");
399
463
fprintf(stderr, "Bad address: %s\n", ip);
402
to.sin6_port = htons(port); /* Spurious warning */
466
to.in6.sin6_port = htons(port); /* Spurious warning */
404
to.sin6_scope_id = (uint32_t)if_index;
468
to.in6.sin6_scope_id = (uint32_t)if_index;
407
471
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
408
/* char addrstr[INET6_ADDRSTRLEN]; */
409
/* if(inet_ntop(to.sin6_family, &(to.sin6_addr), addrstr, */
410
/* sizeof(addrstr)) == NULL){ */
411
/* perror("inet_ntop"); */
413
/* fprintf(stderr, "Really connecting to: %s, port %d\n", */
414
/* addrstr, ntohs(to.sin6_port)); */
472
char addrstr[INET6_ADDRSTRLEN] = "";
473
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
474
sizeof(addrstr)) == NULL){
477
if(strcmp(addrstr, ip) != 0){
478
fprintf(stderr, "Canonical address form: %s\n", addrstr);
418
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
483
ret = connect(tcp_sd, &to.in, sizeof(to));
420
485
perror("connect");
424
ret = initgnutls (&es);
489
const char *out = mandos_protocol_version;
492
size_t out_size = strlen(out);
493
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
494
out_size - written));
500
written += (size_t)ret;
501
if(written < out_size){
504
if (out == mandos_protocol_version){
430
gnutls_transport_set_ptr (es.session,
431
(gnutls_transport_ptr_t) tcp_sd);
434
514
fprintf(stderr, "Establishing TLS session with %s\n", ip);
437
ret = gnutls_handshake (es.session);
517
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
519
ret = gnutls_handshake (session);
439
521
if (ret != GNUTLS_E_SUCCESS){
441
fprintf(stderr, "\n*** Handshake failed ***\n");
523
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
442
524
gnutls_perror (ret);
448
//Retrieve OpenPGP packet that contains the wanted password
530
/* Read OpenPGP packet that contains the wanted password */
451
533
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
473
554
case GNUTLS_E_AGAIN:
475
556
case GNUTLS_E_REHANDSHAKE:
476
ret = gnutls_handshake (es.session);
557
ret = gnutls_handshake (session);
478
fprintf(stderr, "\n*** Handshake failed ***\n");
559
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
479
560
gnutls_perror (ret);
485
566
fprintf(stderr, "Unknown error while reading data from"
486
" encrypted session with mandos server\n");
567
" encrypted session with Mandos server\n");
488
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
569
gnutls_bye (session, GNUTLS_SHUT_RDWR);
492
573
buffer_length += (size_t) ret;
578
fprintf(stderr, "Closing TLS session\n");
581
gnutls_bye (session, GNUTLS_SHUT_RDWR);
496
583
if (buffer_length > 0){
497
584
decrypted_buffer_size = pgp_packet_decrypt(buffer,
499
586
&decrypted_buffer,
501
588
if (decrypted_buffer_size >= 0){
502
590
while(written < (size_t) decrypted_buffer_size){
503
591
ret = (int)fwrite (decrypted_buffer + written, 1,
504
592
(size_t)decrypted_buffer_size - written,
525
fprintf(stderr, "Closing TLS session\n");
610
/* Shutdown procedure */
529
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
532
gnutls_deinit (es.session);
533
gnutls_certificate_free_credentials (es.cred);
534
gnutls_global_deinit ();
615
gnutls_deinit (session);
538
static void resolve_callback( AvahiSServiceResolver *r,
539
AvahiIfIndex interface,
540
AVAHI_GCC_UNUSED AvahiProtocol protocol,
541
AvahiResolverEvent event,
545
const char *host_name,
546
const AvahiAddress *address,
548
AVAHI_GCC_UNUSED AvahiStringList *txt,
549
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
550
AVAHI_GCC_UNUSED void* userdata) {
619
static void resolve_callback(AvahiSServiceResolver *r,
620
AvahiIfIndex interface,
621
AVAHI_GCC_UNUSED AvahiProtocol protocol,
622
AvahiResolverEvent event,
626
const char *host_name,
627
const AvahiAddress *address,
629
AVAHI_GCC_UNUSED AvahiStringList *txt,
630
AVAHI_GCC_UNUSED AvahiLookupResultFlags
551
633
mandos_context *mc = userdata;
552
634
assert(r); /* Spurious warning */
599
682
case AVAHI_BROWSER_FAILURE:
601
fprintf(stderr, "(Browser) %s\n",
684
fprintf(stderr, "(Avahi browser) %s\n",
602
685
avahi_strerror(avahi_server_errno(mc->server)));
603
686
avahi_simple_poll_quit(mc->simple_poll);
606
689
case AVAHI_BROWSER_NEW:
607
/* We ignore the returned resolver object. In the callback
608
function we free it. If the server is terminated before
609
the callback function is called the server will free
610
the resolver for us. */
612
if (!(avahi_s_service_resolver_new(mc->server, interface, protocol, name,
690
/* We ignore the returned Avahi resolver object. In the callback
691
function we free it. If the Avahi server is terminated before
692
the callback function is called the Avahi server will free the
695
if (!(avahi_s_service_resolver_new(mc->server, interface,
696
protocol, name, type, domain,
614
697
AVAHI_PROTO_INET6, 0,
615
698
resolve_callback, mc)))
616
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
617
avahi_strerror(avahi_server_errno(s)));
699
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
700
name, avahi_strerror(avahi_server_errno(mc->server)));
620
703
case AVAHI_BROWSER_REMOVE:
623
706
case AVAHI_BROWSER_ALL_FOR_NOW:
624
707
case AVAHI_BROWSER_CACHE_EXHAUSTED:
709
fprintf(stderr, "No Mandos server found, still searching...\n");
639
memcpy(tmp, first, f_len);
725
memcpy(tmp, first, f_len); /* Spurious warning */
641
727
tmp[f_len] = '/';
643
memcpy(tmp + f_len + 1, second, s_len);
729
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
645
731
tmp[f_len + 1 + s_len] = '\0';
650
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
651
AvahiServerConfig config;
736
int main(int argc, char *argv[]){
652
737
AvahiSServiceBrowser *sb = NULL;
655
int returncode = EXIT_SUCCESS;
740
int exitcode = EXIT_SUCCESS;
656
741
const char *interface = "eth0";
657
742
struct ifreq network;
659
746
char *connect_to = NULL;
660
747
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
748
const char *pubkeyfile = "pubkey.txt";
749
const char *seckeyfile = "seckey.txt";
661
750
mandos_context mc = { .simple_poll = NULL, .server = NULL,
662
.dh_bits = 2048, .priority = "SECURE256"};
751
.dh_bits = 1024, .priority = "SECURE256"};
752
bool gnutls_initalized = false;
665
static struct option long_options[] = {
666
{"debug", no_argument, (int *)&debug, 1},
667
{"connect", required_argument, 0, 'C'},
668
{"interface", required_argument, 0, 'i'},
669
{"certdir", required_argument, 0, 'd'},
670
{"certkey", required_argument, 0, 'c'},
671
{"certfile", required_argument, 0, 'k'},
672
{"dh_bits", required_argument, 0, 'D'},
673
{"priority", required_argument, 0, 'p'},
676
int option_index = 0;
677
ret = getopt_long (argc, argv, "i:", long_options,
755
struct argp_option options[] = {
756
{ .name = "debug", .key = 128,
757
.doc = "Debug mode", .group = 3 },
758
{ .name = "connect", .key = 'c',
760
.doc = "Connect directly to a sepcified mandos server",
762
{ .name = "interface", .key = 'i',
764
.doc = "Interface that Avahi will conntect through",
766
{ .name = "keydir", .key = 'd',
768
.doc = "Directory where the openpgp keyring is",
770
{ .name = "seckey", .key = 's',
772
.doc = "Secret openpgp key for gnutls authentication",
774
{ .name = "pubkey", .key = 'p',
776
.doc = "Public openpgp key for gnutls authentication",
778
{ .name = "dh-bits", .key = 129,
780
.doc = "dh-bits to use in gnutls communication",
782
{ .name = "priority", .key = 130,
784
.doc = "GNUTLS priority", .group = 1 },
789
error_t parse_opt (int key, char *arg,
790
struct argp_state *state) {
791
/* Get the INPUT argument from `argp_parse', which we know is
792
a pointer to our plugin list pointer. */
706
tmp = strtol(optarg, NULL, 10);
707
if (errno == ERANGE){
814
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
708
816
perror("strtol");
709
817
exit(EXIT_FAILURE);
829
return ARGP_ERR_UNKNOWN;
715
mc.priority = optarg;
722
certfile = combinepath(certdir, certfile);
723
if (certfile == NULL){
724
perror("combinepath");
725
returncode = EXIT_FAILURE;
729
certkey = combinepath(certdir, certkey);
730
if (certkey == NULL){
731
perror("combinepath");
732
returncode = EXIT_FAILURE;
834
struct argp argp = { .options = options, .parser = parse_opt,
836
.doc = "Mandos client -- Get and decrypt"
837
" passwords from mandos server" };
838
argp_parse (&argp, argc, argv, 0, 0, NULL);
841
pubkeyfile = combinepath(keydir, pubkeyfile);
842
if (pubkeyfile == NULL){
843
perror("combinepath");
844
exitcode = EXIT_FAILURE;
848
seckeyfile = combinepath(keydir, seckeyfile);
849
if (seckeyfile == NULL){
850
perror("combinepath");
854
ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);
856
fprintf(stderr, "init_gnutls_global\n");
859
gnutls_initalized = true;
736
875
if_index = (AvahiIfIndex) if_nametoindex(interface);
745
884
char *address = strrchr(connect_to, ':');
746
885
if(address == NULL){
747
886
fprintf(stderr, "No colon in address\n");
887
exitcode = EXIT_FAILURE;
751
891
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
753
893
perror("Bad port number");
894
exitcode = EXIT_FAILURE;
757
898
address = connect_to;
758
ret = start_mandos_communication(address, port, if_index);
899
ret = start_mandos_communication(address, port, if_index, &mc);
901
exitcode = EXIT_FAILURE;
903
exitcode = EXIT_SUCCESS;
766
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
769
returncode = EXIT_FAILURE;
772
strcpy(network.ifr_name, interface);
773
ret = ioctl(sd, SIOCGIFFLAGS, &network);
776
perror("ioctl SIOCGIFFLAGS");
777
returncode = EXIT_FAILURE;
780
if((network.ifr_flags & IFF_UP) == 0){
781
network.ifr_flags |= IFF_UP;
782
ret = ioctl(sd, SIOCSIFFLAGS, &network);
908
/* If the interface is down, bring it up */
910
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
913
exitcode = EXIT_FAILURE;
916
strcpy(network.ifr_name, interface); /* Spurious warning */
917
ret = ioctl(sd, SIOCGIFFLAGS, &network);
784
perror("ioctl SIOCSIFFLAGS");
785
returncode = EXIT_FAILURE;
919
perror("ioctl SIOCGIFFLAGS");
920
exitcode = EXIT_FAILURE;
923
if((network.ifr_flags & IFF_UP) == 0){
924
network.ifr_flags |= IFF_UP;
925
ret = ioctl(sd, SIOCSIFFLAGS, &network);
927
perror("ioctl SIOCSIFFLAGS");
928
exitcode = EXIT_FAILURE;
792
936
avahi_set_log_function(empty_log);
795
/* Initialize the psuedo-RNG */
939
/* Initialize the pseudo-RNG for Avahi */
796
940
srand((unsigned int) time(NULL));
798
/* Allocate main loop object */
799
if (!(mc.simple_poll = avahi_simple_poll_new())) {
800
fprintf(stderr, "Failed to create simple poll object.\n");
801
returncode = EXIT_FAILURE;
805
/* Do not publish any local records */
806
avahi_server_config_init(&config);
807
config.publish_hinfo = 0;
808
config.publish_addresses = 0;
809
config.publish_workstation = 0;
810
config.publish_domain = 0;
812
/* Allocate a new server */
813
mc.server = avahi_server_new(avahi_simple_poll_get(simple_poll),
814
&config, NULL, NULL, &error);
816
/* Free the configuration data */
817
avahi_server_config_free(&config);
819
/* Check if creating the server object succeeded */
821
fprintf(stderr, "Failed to create server: %s\n",
942
/* Allocate main Avahi loop object */
943
mc.simple_poll = avahi_simple_poll_new();
944
if (mc.simple_poll == NULL) {
945
fprintf(stderr, "Avahi: Failed to create simple poll"
947
exitcode = EXIT_FAILURE;
952
AvahiServerConfig config;
953
/* Do not publish any local Zeroconf records */
954
avahi_server_config_init(&config);
955
config.publish_hinfo = 0;
956
config.publish_addresses = 0;
957
config.publish_workstation = 0;
958
config.publish_domain = 0;
960
/* Allocate a new server */
961
mc.server = avahi_server_new(avahi_simple_poll_get
962
(mc.simple_poll), &config, NULL,
965
/* Free the Avahi configuration data */
966
avahi_server_config_free(&config);
969
/* Check if creating the Avahi server object succeeded */
970
if (mc.server == NULL) {
971
fprintf(stderr, "Failed to create Avahi server: %s\n",
822
972
avahi_strerror(error));
823
returncode = EXIT_FAILURE;
973
exitcode = EXIT_FAILURE;
827
/* Create the service browser */
977
/* Create the Avahi service browser */
828
978
sb = avahi_s_service_browser_new(mc.server, if_index,
829
979
AVAHI_PROTO_INET6,
830
980
"_mandos._tcp", NULL, 0,
831
981
browse_callback, &mc);
833
983
fprintf(stderr, "Failed to create service browser: %s\n",
834
984
avahi_strerror(avahi_server_errno(mc.server)));
835
returncode = EXIT_FAILURE;
985
exitcode = EXIT_FAILURE;
839
989
/* Run the main loop */
842
fprintf(stderr, "Starting avahi loop search\n");
992
fprintf(stderr, "Starting Avahi loop search\n");
845
avahi_simple_poll_loop(simple_poll);
995
avahi_simple_poll_loop(mc.simple_poll);
850
1000
fprintf(stderr, "%s exiting\n", argv[0]);
853
1003
/* Cleanup things */
855
1005
avahi_s_service_browser_free(sb);
1007
if (mc.server != NULL)
858
1008
avahi_server_free(mc.server);
861
avahi_simple_poll_free(simple_poll);
1010
if (mc.simple_poll != NULL)
1011
avahi_simple_poll_free(mc.simple_poll);
1015
if (gnutls_initalized){
1016
gnutls_certificate_free_credentials (mc.cred);
1017
gnutls_global_deinit ();