58
64
#include <string.h> /* memset */
59
65
#include <arpa/inet.h> /* inet_pton() */
60
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,
63
72
#include <errno.h> /* perror() */
69
75
#define BUFFER_SIZE 256
72
static const char *certdir = "/conf/conf.d/mandos";
73
static const char *certfile = "openpgp-client.txt";
74
static const char *certkey = "openpgp-client-key.txt";
76
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 */
79
gnutls_session_t session;
85
AvahiSimplePoll *simple_poll;
80
87
gnutls_certificate_credentials_t cred;
81
89
gnutls_dh_params_t dh_params;
85
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,
87
117
const char *homedir){
88
118
gpgme_data_t dh_crypto, dh_plain;
92
ssize_t new_packet_capacity = 0;
93
ssize_t new_packet_length = 0;
122
size_t plaintext_capacity = 0;
123
ssize_t plaintext_length = 0;
94
124
gpgme_engine_info_t engine_info;
97
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
127
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
195
/* Delete the GPGME FILE pointer cryptotext data buffer */
196
gpgme_data_release(dh_crypto);
198
229
/* Seek back to the beginning of the GPGME plaintext data buffer */
199
230
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
200
231
perror("pgpme_data_seek");
232
plaintext_length = -1;
205
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
206
*new_packet = realloc(*new_packet,
207
(unsigned int)new_packet_capacity
209
if (*new_packet == NULL){
213
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;
216
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
247
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
218
249
/* Print the data, if any */
223
255
perror("gpgme_data_read");
256
plaintext_length = -1;
226
new_packet_length += ret;
259
plaintext_length += ret;
229
/* FIXME: check characters before printing to screen so to not print
230
terminal control characters */
232
/* fprintf(stderr, "decrypted password is: "); */
233
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
234
/* 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);
237
275
/* Delete the GPGME plaintext data buffer */
238
276
gpgme_data_release(dh_plain);
239
return new_packet_length;
277
return plaintext_length;
242
280
static const char * safer_gnutls_strerror (int value) {
262
302
if ((ret = gnutls_global_init ())
263
303
!= GNUTLS_E_SUCCESS) {
264
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."
269
313
gnutls_global_set_log_level(11);
270
314
gnutls_global_set_log_function(debuggnutls);
273
/* openpgp credentials */
274
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
317
/* OpenPGP credentials */
318
if ((ret = gnutls_certificate_allocate_credentials (&mc->cred))
275
319
!= GNUTLS_E_SUCCESS) {
276
fprintf (stderr, "memory error: %s\n",
320
fprintf (stderr, "GnuTLS memory error: %s\n",
277
321
safer_gnutls_strerror(ret));
322
gnutls_global_deinit ();
282
327
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
283
" and keyfile %s as GnuTLS credentials\n", certfile,
328
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
287
332
ret = gnutls_certificate_set_openpgp_key_file
288
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
333
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
289
334
if (ret != GNUTLS_E_SUCCESS) {
291
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
293
ret, certfile, certkey);
294
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",
295
339
safer_gnutls_strerror(ret));
299
//GnuTLS server initialization
300
if ((ret = gnutls_dh_params_init (&es->dh_params))
301
!= GNUTLS_E_SUCCESS) {
302
fprintf (stderr, "Error in dh parameter initialization: %s\n",
303
safer_gnutls_strerror(ret));
307
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
308
!= GNUTLS_E_SUCCESS) {
309
fprintf (stderr, "Error in prime generation: %s\n",
310
safer_gnutls_strerror(ret));
314
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
316
// GnuTLS session creation
317
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
318
!= 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){
319
375
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
320
376
safer_gnutls_strerror(ret));
323
if ((ret = gnutls_priority_set_direct (es->session, "NORMAL", &err))
324
!= GNUTLS_E_SUCCESS) {
325
fprintf(stderr, "Syntax error at: %s\n", err);
326
fprintf(stderr, "GnuTLS error: %s\n",
327
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);
331
if ((ret = gnutls_credentials_set
332
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
333
!= GNUTLS_E_SUCCESS) {
334
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",
335
395
safer_gnutls_strerror(ret));
396
gnutls_deinit (*session);
339
400
/* ignore client certificate if any. */
340
gnutls_certificate_server_set_request (es->session,
401
gnutls_certificate_server_set_request (*session,
341
402
GNUTLS_CERT_IGNORE);
343
gnutls_dh_set_prime_bits (es->session, DH_BITS);
404
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
409
/* Avahi log function callback */
348
410
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
349
411
__attribute__((unused)) const char *txt){}
413
/* Called when a Mandos server is found */
351
414
static int start_mandos_communication(const char *ip, uint16_t port,
352
AvahiIfIndex if_index){
415
AvahiIfIndex if_index,
354
struct sockaddr_in6 to;
355
encrypted_session es;
418
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
356
419
char *buffer = NULL;
357
420
char *decrypted_buffer;
358
421
size_t buffer_length = 0;
359
422
size_t buffer_capacity = 0;
360
423
ssize_t decrypted_buffer_size;
363
426
char interface[IF_NAMESIZE];
427
gnutls_session_t session;
429
ret = init_gnutls_session (mc, &session);
366
435
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
372
441
perror("socket");
376
if(if_indextoname((unsigned int)if_index, interface) == NULL){
446
if(if_indextoname((unsigned int)if_index, interface) == NULL){
378
447
perror("if_indextoname");
384
450
fprintf(stderr, "Binding to interface %s\n", interface);
387
453
memset(&to,0,sizeof(to)); /* Spurious warning */
388
to.sin6_family = AF_INET6;
389
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);
391
459
perror("inet_pton");
395
463
fprintf(stderr, "Bad address: %s\n", ip);
398
to.sin6_port = htons(port); /* Spurious warning */
466
to.in6.sin6_port = htons(port); /* Spurious warning */
400
to.sin6_scope_id = (uint32_t)if_index;
468
to.in6.sin6_scope_id = (uint32_t)if_index;
403
471
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
404
/* char addrstr[INET6_ADDRSTRLEN]; */
405
/* if(inet_ntop(to.sin6_family, &(to.sin6_addr), addrstr, */
406
/* sizeof(addrstr)) == NULL){ */
407
/* perror("inet_ntop"); */
409
/* fprintf(stderr, "Really connecting to: %s, port %d\n", */
410
/* 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);
414
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
483
ret = connect(tcp_sd, &to.in, sizeof(to));
416
485
perror("connect");
420
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){
426
gnutls_transport_set_ptr (es.session,
427
(gnutls_transport_ptr_t) tcp_sd);
430
514
fprintf(stderr, "Establishing TLS session with %s\n", ip);
433
ret = gnutls_handshake (es.session);
517
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
519
ret = gnutls_handshake (session);
435
521
if (ret != GNUTLS_E_SUCCESS){
437
fprintf(stderr, "\n*** Handshake failed ***\n");
523
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
438
524
gnutls_perror (ret);
444
//Retrieve OpenPGP packet that contains the wanted password
530
/* Read OpenPGP packet that contains the wanted password */
447
533
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
469
554
case GNUTLS_E_AGAIN:
471
556
case GNUTLS_E_REHANDSHAKE:
472
ret = gnutls_handshake (es.session);
557
ret = gnutls_handshake (session);
474
fprintf(stderr, "\n*** Handshake failed ***\n");
559
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
475
560
gnutls_perror (ret);
481
566
fprintf(stderr, "Unknown error while reading data from"
482
" encrypted session with mandos server\n");
567
" encrypted session with Mandos server\n");
484
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
569
gnutls_bye (session, GNUTLS_SHUT_RDWR);
488
573
buffer_length += (size_t) ret;
578
fprintf(stderr, "Closing TLS session\n");
581
gnutls_bye (session, GNUTLS_SHUT_RDWR);
492
583
if (buffer_length > 0){
493
584
decrypted_buffer_size = pgp_packet_decrypt(buffer,
495
586
&decrypted_buffer,
497
588
if (decrypted_buffer_size >= 0){
498
590
while(written < (size_t) decrypted_buffer_size){
499
591
ret = (int)fwrite (decrypted_buffer + written, 1,
500
592
(size_t)decrypted_buffer_size - written,
521
fprintf(stderr, "Closing TLS session\n");
610
/* Shutdown procedure */
525
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
528
gnutls_deinit (es.session);
529
gnutls_certificate_free_credentials (es.cred);
530
gnutls_global_deinit ();
615
gnutls_deinit (session);
534
static AvahiSimplePoll *simple_poll = NULL;
535
static AvahiServer *server = NULL;
537
static void resolve_callback(
538
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
633
mandos_context *mc = userdata;
552
634
assert(r); /* Spurious warning */
554
636
/* Called whenever a service has been resolved successfully or
579
661
avahi_s_service_resolver_free(r);
582
static void browse_callback(
583
AvahiSServiceBrowser *b,
584
AvahiIfIndex interface,
585
AvahiProtocol protocol,
586
AvahiBrowserEvent event,
590
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
593
AvahiServer *s = userdata;
594
assert(b); /* Spurious warning */
596
/* Called whenever a new services becomes available on the LAN or
597
is removed from the LAN */
601
case AVAHI_BROWSER_FAILURE:
603
fprintf(stderr, "(Browser) %s\n",
604
avahi_strerror(avahi_server_errno(server)));
605
avahi_simple_poll_quit(simple_poll);
608
case AVAHI_BROWSER_NEW:
609
/* We ignore the returned resolver object. In the callback
610
function we free it. If the server is terminated before
611
the callback function is called the server will free
612
the resolver for us. */
614
if (!(avahi_s_service_resolver_new(s, interface, protocol, name,
616
AVAHI_PROTO_INET6, 0,
617
resolve_callback, s)))
618
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
619
avahi_strerror(avahi_server_errno(s)));
622
case AVAHI_BROWSER_REMOVE:
625
case AVAHI_BROWSER_ALL_FOR_NOW:
626
case AVAHI_BROWSER_CACHE_EXHAUSTED:
664
static void browse_callback( AvahiSServiceBrowser *b,
665
AvahiIfIndex interface,
666
AvahiProtocol protocol,
667
AvahiBrowserEvent event,
671
AVAHI_GCC_UNUSED AvahiLookupResultFlags
674
mandos_context *mc = userdata;
675
assert(b); /* Spurious warning */
677
/* Called whenever a new services becomes available on the LAN or
678
is removed from the LAN */
682
case AVAHI_BROWSER_FAILURE:
684
fprintf(stderr, "(Avahi browser) %s\n",
685
avahi_strerror(avahi_server_errno(mc->server)));
686
avahi_simple_poll_quit(mc->simple_poll);
689
case AVAHI_BROWSER_NEW:
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,
697
AVAHI_PROTO_INET6, 0,
698
resolve_callback, mc)))
699
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
700
name, avahi_strerror(avahi_server_errno(mc->server)));
703
case AVAHI_BROWSER_REMOVE:
706
case AVAHI_BROWSER_ALL_FOR_NOW:
707
case AVAHI_BROWSER_CACHE_EXHAUSTED:
709
fprintf(stderr, "No Mandos server found, still searching...\n");
631
715
/* Combines file name and path and returns the malloced new
641
memcpy(tmp, first, f_len);
725
memcpy(tmp, first, f_len); /* Spurious warning */
643
727
tmp[f_len] = '/';
645
memcpy(tmp + f_len + 1, second, s_len);
729
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
647
731
tmp[f_len + 1 + s_len] = '\0';
652
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
653
AvahiServerConfig config;
736
int main(int argc, char *argv[]){
654
737
AvahiSServiceBrowser *sb = NULL;
657
int returncode = EXIT_SUCCESS;
658
const char *interface = NULL;
740
int exitcode = EXIT_SUCCESS;
741
const char *interface = "eth0";
742
struct ifreq network;
746
char *connect_to = NULL;
659
747
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
660
char *connect_to = NULL;
663
static struct option long_options[] = {
664
{"debug", no_argument, (int *)&debug, 1},
665
{"connect", required_argument, 0, 'C'},
666
{"interface", required_argument, 0, 'i'},
667
{"certdir", required_argument, 0, 'd'},
668
{"certkey", required_argument, 0, 'c'},
669
{"certfile", required_argument, 0, 'k'},
672
int option_index = 0;
673
ret = getopt_long (argc, argv, "i:", long_options,
703
certfile = combinepath(certdir, certfile);
704
if (certfile == NULL){
705
perror("combinepath");
709
if(interface != NULL){
710
if_index = (AvahiIfIndex) if_nametoindex(interface);
712
fprintf(stderr, "No such interface: \"%s\"\n", interface);
748
const char *pubkeyfile = "pubkey.txt";
749
const char *seckeyfile = "seckey.txt";
750
mandos_context mc = { .simple_poll = NULL, .server = NULL,
751
.dh_bits = 1024, .priority = "SECURE256"};
752
bool gnutls_initalized = false;
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. */
814
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
829
return ARGP_ERR_UNKNOWN;
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;
875
if_index = (AvahiIfIndex) if_nametoindex(interface);
877
fprintf(stderr, "No such interface: \"%s\"\n", interface);
717
881
if(connect_to != NULL){
720
884
char *address = strrchr(connect_to, ':');
721
885
if(address == NULL){
722
886
fprintf(stderr, "No colon in address\n");
887
exitcode = EXIT_FAILURE;
726
891
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
728
893
perror("Bad port number");
894
exitcode = EXIT_FAILURE;
732
898
address = connect_to;
733
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;
741
certkey = combinepath(certdir, certkey);
742
if (certkey == NULL){
743
perror("combinepath");
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);
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;
748
936
avahi_set_log_function(empty_log);
751
/* Initialize the psuedo-RNG */
939
/* Initialize the pseudo-RNG for Avahi */
752
940
srand((unsigned int) time(NULL));
754
/* Allocate main loop object */
755
if (!(simple_poll = avahi_simple_poll_new())) {
756
fprintf(stderr, "Failed to create simple poll object.\n");
761
/* Do not publish any local records */
762
avahi_server_config_init(&config);
763
config.publish_hinfo = 0;
764
config.publish_addresses = 0;
765
config.publish_workstation = 0;
766
config.publish_domain = 0;
768
/* Allocate a new server */
769
server = avahi_server_new(avahi_simple_poll_get(simple_poll),
770
&config, NULL, NULL, &error);
772
/* Free the configuration data */
773
avahi_server_config_free(&config);
775
/* Check if creating the server object succeeded */
777
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",
778
972
avahi_strerror(error));
779
returncode = EXIT_FAILURE;
973
exitcode = EXIT_FAILURE;
783
/* Create the service browser */
784
sb = avahi_s_service_browser_new(server, if_index,
977
/* Create the Avahi service browser */
978
sb = avahi_s_service_browser_new(mc.server, if_index,
785
979
AVAHI_PROTO_INET6,
786
980
"_mandos._tcp", NULL, 0,
787
browse_callback, server);
981
browse_callback, &mc);
789
983
fprintf(stderr, "Failed to create service browser: %s\n",
790
avahi_strerror(avahi_server_errno(server)));
791
returncode = EXIT_FAILURE;
984
avahi_strerror(avahi_server_errno(mc.server)));
985
exitcode = EXIT_FAILURE;
795
989
/* Run the main loop */
798
fprintf(stderr, "Starting avahi loop search\n");
992
fprintf(stderr, "Starting Avahi loop search\n");
801
avahi_simple_poll_loop(simple_poll);
995
avahi_simple_poll_loop(mc.simple_poll);
806
1000
fprintf(stderr, "%s exiting\n", argv[0]);
809
1003
/* Cleanup things */
811
1005
avahi_s_service_browser_free(sb);
814
avahi_server_free(server);
817
avahi_simple_poll_free(simple_poll);
1007
if (mc.server != NULL)
1008
avahi_server_free(mc.server);
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 ();