32
32
#define _LARGEFILE_SOURCE
33
33
#define _FILE_OFFSET_BITS 64
39
#include <net/if.h> /* if_nametoindex */
40
#include <sys/ioctl.h> // ioctl, ifreq, SIOCGIFFLAGS, IFF_UP, SIOCSIFFLAGS
41
#include <net/if.h> // ioctl, ifreq, SIOCGIFFLAGS, IFF_UP, SIOCSIFFLAGS
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */
37
#include <stdio.h> /* fprintf(), stderr, fwrite(), stdout,
39
#include <stdint.h> /* uint16_t, uint32_t */
40
#include <stddef.h> /* NULL, size_t, ssize_t */
41
#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,
43
#include <stdbool.h> /* bool, true */
44
#include <string.h> /* memset(), strcmp(), strlen(),
45
strerror(), memcpy(), strcpy() */
46
#include <sys/ioctl.h> /* ioctl */
47
#include <net/if.h> /* ifreq, SIOCGIFFLAGS, SIOCSIFFLAGS,
49
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
50
sockaddr_in6, PF_INET6,
51
SOCK_STREAM, INET6_ADDRSTRLEN,
53
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
54
struct in6_addr, inet_pton(),
56
#include <assert.h> /* assert() */
57
#include <errno.h> /* perror(), errno */
58
#include <time.h> /* time() */
59
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
60
SIOCSIFFLAGS, if_indextoname(),
61
if_nametoindex(), IF_NAMESIZE */
62
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
63
getuid(), getgid(), setuid(),
65
#include <netinet/in.h>
66
#include <arpa/inet.h> /* inet_pton(), htons */
67
#include <iso646.h> /* not, and */
68
#include <argp.h> /* struct argp_option, error_t, struct
69
argp_state, struct argp,
70
argp_parse(), ARGP_KEY_ARG,
71
ARGP_KEY_END, ARGP_ERR_UNKNOWN */
74
/* All Avahi types, constants and functions
43
77
#include <avahi-core/core.h>
44
78
#include <avahi-core/lookup.h>
45
79
#include <avahi-core/log.h>
47
81
#include <avahi-common/malloc.h>
48
82
#include <avahi-common/error.h>
51
#include <sys/types.h> /* socket(), inet_pton() */
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
53
struct in6_addr, inet_pton() */
54
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
55
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
57
#include <unistd.h> /* close() */
58
#include <netinet/in.h>
59
#include <stdbool.h> /* true */
60
#include <string.h> /* memset */
61
#include <arpa/inet.h> /* inet_pton() */
62
#include <iso646.h> /* not */
65
#include <errno.h> /* perror() */
85
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and functions
87
init_gnutls_session(),
89
#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),
90
GNUTLS_OPENPGP_FMT_BASE64 */
93
#include <gpgme.h> /* All GPGME types, constants and functions
95
GPGME_PROTOCOL_OpenPGP,
71
98
#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
100
bool debug = false;
101
static const char *keydir = "/conf/conf.d/mandos";
102
static const char mandos_protocol_version[] = "1";
103
const char *argp_program_version = "password-request 1.0";
104
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
106
/* Used for passing in values through the Avahi callback functions */
81
108
AvahiSimplePoll *simple_poll;
82
109
AvahiServer *server;
83
110
gnutls_certificate_credentials_t cred;
84
111
unsigned int dh_bits;
112
gnutls_dh_params_t dh_params;
85
113
const char *priority;
88
static ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
117
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
118
* "buffer_capacity" is how much is currently allocated,
119
* "buffer_length" is how much is already used.
121
size_t adjustbuffer(char **buffer, size_t buffer_length,
122
size_t buffer_capacity){
123
if (buffer_length + BUFFER_SIZE > buffer_capacity){
124
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
128
buffer_capacity += BUFFER_SIZE;
130
return buffer_capacity;
134
* Decrypt OpenPGP data using keyrings in HOMEDIR.
135
* Returns -1 on error
137
static ssize_t pgp_packet_decrypt (const char *cryptotext,
90
140
const char *homedir){
91
141
gpgme_data_t dh_crypto, dh_plain;
95
ssize_t new_packet_capacity = 0;
96
ssize_t new_packet_length = 0;
145
size_t plaintext_capacity = 0;
146
ssize_t plaintext_length = 0;
97
147
gpgme_engine_info_t engine_info;
100
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
150
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
198
/* Delete the GPGME FILE pointer cryptotext data buffer */
199
gpgme_data_release(dh_crypto);
201
252
/* Seek back to the beginning of the GPGME plaintext data buffer */
202
253
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
203
254
perror("pgpme_data_seek");
255
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;
261
plaintext_capacity = adjustbuffer(plaintext,
262
(size_t)plaintext_length,
264
if (plaintext_capacity == 0){
265
perror("adjustbuffer");
266
plaintext_length = -1;
219
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
270
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
221
272
/* Print the data, if any */
226
278
perror("gpgme_data_read");
279
plaintext_length = -1;
229
new_packet_length += ret;
282
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"); */
286
fprintf(stderr, "Decrypted password is: ");
287
for(ssize_t i = 0; i < plaintext_length; i++){
288
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
290
fprintf(stderr, "\n");
295
/* Delete the GPGME cryptotext data buffer */
296
gpgme_data_release(dh_crypto);
240
298
/* Delete the GPGME plaintext data buffer */
241
299
gpgme_data_release(dh_plain);
242
return new_packet_length;
300
return plaintext_length;
245
303
static const char * safer_gnutls_strerror (int value) {
310
/* GnuTLS log function callback */
252
311
static void debuggnutls(__attribute__((unused)) int level,
253
312
const char* string){
254
fprintf(stderr, "%s", string);
313
fprintf(stderr, "GnuTLS: %s", string);
257
static int initgnutls(mandos_context *mc){
316
static int init_gnutls_global(mandos_context *mc,
317
const char *pubkeyfile,
318
const char *seckeyfile){
262
322
fprintf(stderr, "Initializing GnuTLS\n");
265
if ((ret = gnutls_global_init ())
266
!= GNUTLS_E_SUCCESS) {
267
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
325
ret = gnutls_global_init();
326
if (ret != GNUTLS_E_SUCCESS) {
327
fprintf (stderr, "GnuTLS global_init: %s\n",
328
safer_gnutls_strerror(ret));
333
/* "Use a log level over 10 to enable all debugging options."
272
336
gnutls_global_set_log_level(11);
273
337
gnutls_global_set_log_function(debuggnutls);
276
/* openpgp credentials */
277
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
278
!= GNUTLS_E_SUCCESS) {
279
fprintf (stderr, "memory error: %s\n",
340
/* OpenPGP credentials */
341
gnutls_certificate_allocate_credentials(&mc->cred);
342
if (ret != GNUTLS_E_SUCCESS){
343
fprintf (stderr, "GnuTLS memory error: %s\n",
280
344
safer_gnutls_strerror(ret));
345
gnutls_global_deinit ();
285
350
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
286
" and keyfile %s as GnuTLS credentials\n", certfile,
351
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
290
355
ret = gnutls_certificate_set_openpgp_key_file
291
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
356
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
292
357
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",
359
"Error[%d] while reading the OpenPGP key pair ('%s',"
360
" '%s')\n", ret, pubkeyfile, seckeyfile);
361
fprintf(stdout, "The GnuTLS error is: %s\n",
298
362
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){
366
/* GnuTLS server initialization */
367
ret = gnutls_dh_params_init(&mc->dh_params);
368
if (ret != GNUTLS_E_SUCCESS) {
369
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
370
" %s\n", safer_gnutls_strerror(ret));
373
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
374
if (ret != GNUTLS_E_SUCCESS) {
375
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
376
safer_gnutls_strerror(ret));
380
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
386
gnutls_certificate_free_credentials(mc->cred);
387
gnutls_global_deinit();
392
static int init_gnutls_session(mandos_context *mc,
393
gnutls_session_t *session){
395
/* GnuTLS session creation */
396
ret = gnutls_init(session, GNUTLS_SERVER);
397
if (ret != GNUTLS_E_SUCCESS){
322
398
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
323
399
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));
404
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
405
if (ret != GNUTLS_E_SUCCESS) {
406
fprintf(stderr, "Syntax error at: %s\n", err);
407
fprintf(stderr, "GnuTLS error: %s\n",
408
safer_gnutls_strerror(ret));
409
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",
414
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
416
if (ret != GNUTLS_E_SUCCESS) {
417
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
338
418
safer_gnutls_strerror(ret));
419
gnutls_deinit (*session);
342
423
/* ignore client certificate if any. */
343
gnutls_certificate_server_set_request (es->session,
424
gnutls_certificate_server_set_request (*session,
344
425
GNUTLS_CERT_IGNORE);
346
gnutls_dh_set_prime_bits (es->session, DH_BITS);
427
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
432
/* Avahi log function callback */
351
433
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
352
434
__attribute__((unused)) const char *txt){}
436
/* Called when a Mandos server is found */
354
437
static int start_mandos_communication(const char *ip, uint16_t port,
355
438
AvahiIfIndex if_index,
356
439
mandos_context *mc){
358
struct sockaddr_in6 to;
359
encrypted_session es;
441
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
360
442
char *buffer = NULL;
361
443
char *decrypted_buffer;
362
444
size_t buffer_length = 0;
363
445
size_t buffer_capacity = 0;
364
446
ssize_t decrypted_buffer_size;
367
449
char interface[IF_NAMESIZE];
450
gnutls_session_t session;
452
ret = init_gnutls_session (mc, &session);
370
458
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
381
469
if(if_indextoname((unsigned int)if_index, interface) == NULL){
383
perror("if_indextoname");
470
perror("if_indextoname");
388
473
fprintf(stderr, "Binding to interface %s\n", interface);
391
476
memset(&to,0,sizeof(to)); /* Spurious warning */
392
to.sin6_family = AF_INET6;
393
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
477
to.in6.sin6_family = AF_INET6;
478
/* It would be nice to have a way to detect if we were passed an
479
IPv4 address here. Now we assume an IPv6 address. */
480
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
395
482
perror("inet_pton");
399
486
fprintf(stderr, "Bad address: %s\n", ip);
402
to.sin6_port = htons(port); /* Spurious warning */
489
to.in6.sin6_port = htons(port); /* Spurious warning */
404
to.sin6_scope_id = (uint32_t)if_index;
491
to.in6.sin6_scope_id = (uint32_t)if_index;
407
494
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)); */
495
char addrstr[INET6_ADDRSTRLEN] = "";
496
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
497
sizeof(addrstr)) == NULL){
500
if(strcmp(addrstr, ip) != 0){
501
fprintf(stderr, "Canonical address form: %s\n", addrstr);
418
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
506
ret = connect(tcp_sd, &to.in, sizeof(to));
420
508
perror("connect");
424
ret = initgnutls (&es);
512
const char *out = mandos_protocol_version;
515
size_t out_size = strlen(out);
516
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
517
out_size - written));
523
written += (size_t)ret;
524
if(written < out_size){
527
if (out == mandos_protocol_version){
430
gnutls_transport_set_ptr (es.session,
431
(gnutls_transport_ptr_t) tcp_sd);
434
537
fprintf(stderr, "Establishing TLS session with %s\n", ip);
437
ret = gnutls_handshake (es.session);
540
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
543
ret = gnutls_handshake (session);
544
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
439
546
if (ret != GNUTLS_E_SUCCESS){
441
fprintf(stderr, "\n*** Handshake failed ***\n");
548
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
442
549
gnutls_perror (ret);
448
//Retrieve OpenPGP packet that contains the wanted password
555
/* Read OpenPGP packet that contains the wanted password */
451
558
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
525
fprintf(stderr, "Closing TLS session\n");
637
/* 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 ();
642
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) {
646
static void resolve_callback(AvahiSServiceResolver *r,
647
AvahiIfIndex interface,
648
AVAHI_GCC_UNUSED AvahiProtocol protocol,
649
AvahiResolverEvent event,
653
const char *host_name,
654
const AvahiAddress *address,
656
AVAHI_GCC_UNUSED AvahiStringList *txt,
657
AVAHI_GCC_UNUSED AvahiLookupResultFlags
551
660
mandos_context *mc = userdata;
552
661
assert(r); /* Spurious warning */
599
709
case AVAHI_BROWSER_FAILURE:
601
fprintf(stderr, "(Browser) %s\n",
711
fprintf(stderr, "(Avahi browser) %s\n",
602
712
avahi_strerror(avahi_server_errno(mc->server)));
603
713
avahi_simple_poll_quit(mc->simple_poll);
606
716
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,
717
/* We ignore the returned Avahi resolver object. In the callback
718
function we free it. If the Avahi server is terminated before
719
the callback function is called the Avahi server will free the
722
if (!(avahi_s_service_resolver_new(mc->server, interface,
723
protocol, name, type, domain,
614
724
AVAHI_PROTO_INET6, 0,
615
725
resolve_callback, mc)))
616
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
617
avahi_strerror(avahi_server_errno(s)));
726
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
727
name, avahi_strerror(avahi_server_errno(mc->server)));
620
730
case AVAHI_BROWSER_REMOVE:
623
733
case AVAHI_BROWSER_ALL_FOR_NOW:
624
734
case AVAHI_BROWSER_CACHE_EXHAUSTED:
736
fprintf(stderr, "No Mandos server found, still searching...\n");
639
memcpy(tmp, first, f_len);
752
memcpy(tmp, first, f_len); /* Spurious warning */
641
754
tmp[f_len] = '/';
643
memcpy(tmp + f_len + 1, second, s_len);
756
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
645
758
tmp[f_len + 1 + s_len] = '\0';
650
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
651
AvahiServerConfig config;
763
int main(int argc, char *argv[]){
652
764
AvahiSServiceBrowser *sb = NULL;
655
int returncode = EXIT_SUCCESS;
767
int exitcode = EXIT_SUCCESS;
656
768
const char *interface = "eth0";
657
769
struct ifreq network;
659
773
char *connect_to = NULL;
660
774
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
775
const char *pubkeyfile = "pubkey.txt";
776
const char *seckeyfile = "seckey.txt";
661
777
mandos_context mc = { .simple_poll = NULL, .server = NULL,
662
.dh_bits = 2048, .priority = "SECURE256"};
778
.dh_bits = 1024, .priority = "SECURE256"};
779
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,
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. */
706
tmp = strtol(optarg, NULL, 10);
707
if (errno == ERANGE){
841
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
708
843
perror("strtol");
709
844
exit(EXIT_FAILURE);
856
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;
861
struct argp argp = { .options = options, .parser = parse_opt,
863
.doc = "Mandos client -- Get and decrypt"
864
" passwords from mandos server" };
865
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
866
if (ret == ARGP_ERR_UNKNOWN){
867
fprintf(stderr, "Unkown error while parsing arguments\n");
868
exitcode = EXIT_FAILURE;
873
pubkeyfile = combinepath(keydir, pubkeyfile);
874
if (pubkeyfile == NULL){
875
perror("combinepath");
876
exitcode = EXIT_FAILURE;
880
seckeyfile = combinepath(keydir, seckeyfile);
881
if (seckeyfile == NULL){
882
perror("combinepath");
886
ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);
888
fprintf(stderr, "init_gnutls_global\n");
891
gnutls_initalized = true;
736
907
if_index = (AvahiIfIndex) if_nametoindex(interface);
745
916
char *address = strrchr(connect_to, ':');
746
917
if(address == NULL){
747
918
fprintf(stderr, "No colon in address\n");
919
exitcode = EXIT_FAILURE;
751
923
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
753
925
perror("Bad port number");
926
exitcode = EXIT_FAILURE;
757
930
address = connect_to;
758
ret = start_mandos_communication(address, port, if_index);
931
ret = start_mandos_communication(address, port, if_index, &mc);
933
exitcode = EXIT_FAILURE;
935
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);
940
/* If the interface is down, bring it up */
942
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
945
exitcode = EXIT_FAILURE;
948
strcpy(network.ifr_name, interface); /* Spurious warning */
949
ret = ioctl(sd, SIOCGIFFLAGS, &network);
784
perror("ioctl SIOCSIFFLAGS");
785
returncode = EXIT_FAILURE;
951
perror("ioctl SIOCGIFFLAGS");
952
exitcode = EXIT_FAILURE;
955
if((network.ifr_flags & IFF_UP) == 0){
956
network.ifr_flags |= IFF_UP;
957
ret = ioctl(sd, SIOCSIFFLAGS, &network);
959
perror("ioctl SIOCSIFFLAGS");
960
exitcode = EXIT_FAILURE;
792
968
avahi_set_log_function(empty_log);
795
/* Initialize the psuedo-RNG */
971
/* Initialize the pseudo-RNG for Avahi */
796
972
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",
974
/* Allocate main Avahi loop object */
975
mc.simple_poll = avahi_simple_poll_new();
976
if (mc.simple_poll == NULL) {
977
fprintf(stderr, "Avahi: Failed to create simple poll"
979
exitcode = EXIT_FAILURE;
984
AvahiServerConfig config;
985
/* Do not publish any local Zeroconf records */
986
avahi_server_config_init(&config);
987
config.publish_hinfo = 0;
988
config.publish_addresses = 0;
989
config.publish_workstation = 0;
990
config.publish_domain = 0;
992
/* Allocate a new server */
993
mc.server = avahi_server_new(avahi_simple_poll_get
994
(mc.simple_poll), &config, NULL,
997
/* Free the Avahi configuration data */
998
avahi_server_config_free(&config);
1001
/* Check if creating the Avahi server object succeeded */
1002
if (mc.server == NULL) {
1003
fprintf(stderr, "Failed to create Avahi server: %s\n",
822
1004
avahi_strerror(error));
823
returncode = EXIT_FAILURE;
1005
exitcode = EXIT_FAILURE;
827
/* Create the service browser */
1009
/* Create the Avahi service browser */
828
1010
sb = avahi_s_service_browser_new(mc.server, if_index,
829
1011
AVAHI_PROTO_INET6,
830
1012
"_mandos._tcp", NULL, 0,
831
1013
browse_callback, &mc);
833
1015
fprintf(stderr, "Failed to create service browser: %s\n",
834
1016
avahi_strerror(avahi_server_errno(mc.server)));
835
returncode = EXIT_FAILURE;
1017
exitcode = EXIT_FAILURE;
839
1021
/* Run the main loop */
842
fprintf(stderr, "Starting avahi loop search\n");
1024
fprintf(stderr, "Starting Avahi loop search\n");
845
avahi_simple_poll_loop(simple_poll);
1027
avahi_simple_poll_loop(mc.simple_poll);
850
1032
fprintf(stderr, "%s exiting\n", argv[0]);
853
1035
/* Cleanup things */
855
1037
avahi_s_service_browser_free(sb);
1039
if (mc.server != NULL)
858
1040
avahi_server_free(mc.server);
861
avahi_simple_poll_free(simple_poll);
1042
if (mc.simple_poll != NULL)
1043
avahi_simple_poll_free(mc.simple_poll);
1047
if (gnutls_initalized){
1048
gnutls_certificate_free_credentials(mc.cred);
1049
gnutls_global_deinit ();