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- Committer: Björn Påhlsson
- Date: 2008-08-09 04:49:12 UTC
- mfrom: (52 mandos)
- mto: (24.1.154 mandos) (237.4.3 mandos-release)
- mto: This revision was merged to the branch mainline in revision 53.
- Revision ID: belorn@braxen-20080809044912-b4axmz98dv4e09hh
merge
- files added:
- mandos-client.xml
- files removed:
- ca.pem
- files renamed:
- server.py => mandos
- plugbasedclient.c => mandos-client.c
- server.conf => mandos.conf
- plugins.d/passprompt.c => plugins.d/password-prompt.c
- plugins.d/mandosclient.c => plugins.d/password-request.c
- files modified:
- Makefile
added
removed
plugins.d/password-request.c
32
32
#define _LARGEFILE_SOURCE
33
33
#define _FILE_OFFSET_BITS 64
34
34
35
#include <stdio.h>
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */
36
37
#include <stdio.h> /* fprintf(), stderr, fwrite(), stdout, ferror() */
38
#include <stdint.h> /* uint16_t, uint32_t */
39
#include <stddef.h> /* NULL, size_t, ssize_t */
40
#include <stdlib.h> /* free() */
41
#include <stdbool.h> /* bool, true */
42
#include <string.h> /* memset(), strcmp(), strlen, strerror() */
43
#include <sys/ioctl.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
44
SIOCSIFFLAGS */
45
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
46
sockaddr_in6, PF_INET6, SOCK_STREAM, INET6_ADDRSTRLEN */
47
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
48
struct in6_addr, inet_pton(),
49
connect() */
36
50
#include <assert.h>
37
#include <stdlib.h>
51
#include <errno.h> /* perror() */
38
52
#include <time.h>
39
#include <net/if.h> /* if_nametoindex */
53
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
54
SIOCSIFFLAGS, if_indextoname(),
55
if_nametoindex(), IF_NAMESIZE */
56
#include <unistd.h> /* close(), SEEK_SET, off_t, write()*/
57
#include <netinet/in.h>
58
#include <arpa/inet.h> /* inet_pton(), htons */
59
#include <iso646.h> /* not */
60
#include <argp.h> /* struct argp_option,
61
struct argp_state, struct argp,
62
argp_parse() */
40
63
41
#include <avahi-core/core.h>
64
/* Avahi */
65
#include <avahi-core/core.h> /* AvahiSimplePoll, AvahiServer,
66
AvahiIfIndex */
42
67
#include <avahi-core/lookup.h>
43
#include <avahi-core/log.h>
68
#include <avahi-core/log.h> /* AvahiLogLevel */
44
69
#include <avahi-common/simple-watch.h>
45
70
#include <avahi-common/malloc.h>
46
71
#include <avahi-common/error.h>
47
72
48
//mandos client part
49
#include <sys/types.h> /* socket(), inet_pton() */
50
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
51
struct in6_addr, inet_pton() */
52
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
53
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
54
55
#include <unistd.h> /* close() */
56
#include <netinet/in.h>
57
#include <stdbool.h> /* true */
58
#include <string.h> /* memset */
59
#include <arpa/inet.h> /* inet_pton() */
60
#include <iso646.h> /* not */
61
62
// gpgme
63
#include <errno.h> /* perror() */
64
#include <gpgme.h>
65
66
// getopt long
67
#include <getopt.h>
73
/* GnuTLS */
74
#include <gnutls/gnutls.h> /* gnutls_certificate_credentials_t,
75
gnutls_dh_params_t,
76
gnutls_strerror(),
77
gnutls_global_init(),
78
gnutls_global_set_log_level(),
79
gnutls_global_set_log_function(),
80
gnutls_certificate_allocate_credentials(),
81
gnutls_global_deinit(),
82
gnutls_dh_params_init(),
83
gnutls_dh_params_generate(),
84
gnutls_certificate_set_dh_params(),
85
gnutls_certificate_free_credentials(),
86
gnutls_session_t, gnutls_init(),
87
gnutls_priority_set_direct(),
88
gnutls_deinit(),
89
gnutls_credentials_set(),
90
gnutls_certificate_server_set_request(),
91
gnutls_dh_set_prime_bits(),
92
gnutls_transport_set_ptr(),
93
gnutls_transport_ptr_t,
94
gnutls_handshake(),
95
gnutls_record_recv()
96
gnutls_perror(), gnutls_bye(),
97
init_gnutls_session(),
98
GNUTLS_E_SUCCESS,
99
GNUTLS_CRD_CERTIFICATE,
100
GNUTLS_CERT_IGNORE,
101
GNUTLS_E_INTERRUPTED,
102
GNUTLS_E_AGAIN,
103
GNUTLS_E_REHANDSHAKE,
104
GNUTLS_SHUT_RDWR, */
105
#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),
106
GNUTLS_OPENPGP_FMT_BASE64 */
107
108
/* GPGME */
109
#include <gpgme.h> /* gpgme_data_t, gpgme_ctx_t,
110
gpgme_error_t, gpgme_engine_info_t,
111
gpgme_check_version(),
112
gpgme_engine_check_version(),
113
gpgme_strsource(),
114
gpgme_strerror(),
115
gpgme_get_engine_info(),
116
gpgme_set_engine_info(),
117
gpgme_data_new_from_mem(),
118
gpgme_data_new(), gpgme_new(),
119
gpgme_op_decrypt(),
120
gpgme_decrypt_result_t,
121
gpgme_op_decrypt_result(),
122
gpgme_recipient_t,
123
gpgme_pubkey_algo_name(),
124
gpgme_data_seek(),
125
gpgme_data_read(),
126
gpgme_data_release()
127
GPGME_PROTOCOL_OpenPGP,
128
GPG_ERR_NO_ERROR,
129
GPG_ERR_NO_SECKEY, */
68
130
69
131
#define BUFFER_SIZE 256
70
#define DH_BITS 1024
71
72
const char *certdir = "/conf/conf.d/cryptkeyreq/";
73
const char *certfile = "openpgp-client.txt";
74
const char *certkey = "openpgp-client-key.txt";
75
132
76
133
bool debug = false;
134
static const char *keydir = "/conf/conf.d/mandos";
135
static const char mandos_protocol_version[] = "1";
136
const char *argp_program_version = "mandosclient 0.9";
137
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
77
138
139
/* Used for passing in values through the Avahi callback functions */
78
140
typedef struct {
79
gnutls_session_t session;
141
AvahiSimplePoll *simple_poll;
142
AvahiServer *server;
80
143
gnutls_certificate_credentials_t cred;
144
unsigned int dh_bits;
81
145
gnutls_dh_params_t dh_params;
82
} encrypted_session;
83
84
85
ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
86
char **new_packet, const char *homedir){
146
const char *priority;
147
} mandos_context;
148
149
/*
150
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
151
* "buffer_capacity" is how much is currently allocated,
152
* "buffer_length" is how much is already used.
153
*/
154
size_t adjustbuffer(char **buffer, size_t buffer_length,
155
size_t buffer_capacity){
156
if (buffer_length + BUFFER_SIZE > buffer_capacity){
157
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
158
if (buffer == NULL){
159
return 0;
160
}
161
buffer_capacity += BUFFER_SIZE;
162
}
163
return buffer_capacity;
164
}
165
166
/*
167
* Decrypt OpenPGP data using keyrings in HOMEDIR.
168
* Returns -1 on error
169
*/
170
static ssize_t pgp_packet_decrypt (const char *cryptotext,
171
size_t crypto_size,
172
char **plaintext,
173
const char *homedir){
87
174
gpgme_data_t dh_crypto, dh_plain;
88
175
gpgme_ctx_t ctx;
89
176
gpgme_error_t rc;
90
177
ssize_t ret;
91
ssize_t new_packet_capacity = 0;
92
ssize_t new_packet_length = 0;
178
size_t plaintext_capacity = 0;
179
ssize_t plaintext_length = 0;
93
180
gpgme_engine_info_t engine_info;
94
181
95
182
if (debug){
96
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
183
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
97
184
}
98
185
99
186
/* Init GPGME */
105
192
return -1;
106
193
}
107
194
108
/* Set GPGME home directory */
195
/* Set GPGME home directory for the OpenPGP engine only */
109
196
rc = gpgme_get_engine_info (&engine_info);
110
197
if (rc != GPG_ERR_NO_ERROR){
111
198
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
121
208
engine_info = engine_info->next;
122
209
}
123
210
if(engine_info == NULL){
124
fprintf(stderr, "Could not set home dir to %s\n", homedir);
211
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
125
212
return -1;
126
213
}
127
214
128
/* Create new GPGME data buffer from packet buffer */
129
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
215
/* Create new GPGME data buffer from memory cryptotext */
216
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
217
0);
130
218
if (rc != GPG_ERR_NO_ERROR){
131
219
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
132
220
gpgme_strsource(rc), gpgme_strerror(rc));
138
226
if (rc != GPG_ERR_NO_ERROR){
139
227
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
140
228
gpgme_strsource(rc), gpgme_strerror(rc));
229
gpgme_data_release(dh_crypto);
141
230
return -1;
142
231
}
143
232
146
235
if (rc != GPG_ERR_NO_ERROR){
147
236
fprintf(stderr, "bad gpgme_new: %s: %s\n",
148
237
gpgme_strsource(rc), gpgme_strerror(rc));
149
return -1;
238
plaintext_length = -1;
239
goto decrypt_end;
150
240
}
151
241
152
/* Decrypt data from the FILE pointer to the plaintext data
153
buffer */
242
/* Decrypt data from the cryptotext data buffer to the plaintext
243
data buffer */
154
244
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
155
245
if (rc != GPG_ERR_NO_ERROR){
156
246
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
157
247
gpgme_strsource(rc), gpgme_strerror(rc));
158
return -1;
248
plaintext_length = -1;
249
goto decrypt_end;
159
250
}
160
251
161
252
if(debug){
162
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
253
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
163
254
}
164
255
165
256
if (debug){
166
257
gpgme_decrypt_result_t result;
167
258
result = gpgme_op_decrypt_result(ctx);
191
282
}
192
283
}
193
284
194
/* Delete the GPGME FILE pointer cryptotext data buffer */
195
gpgme_data_release(dh_crypto);
196
197
285
/* Seek back to the beginning of the GPGME plaintext data buffer */
198
286
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
199
287
perror("pgpme_data_seek");
288
plaintext_length = -1;
289
goto decrypt_end;
200
290
}
201
291
202
*new_packet = 0;
292
*plaintext = NULL;
203
293
while(true){
204
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
205
*new_packet = realloc(*new_packet,
206
(unsigned int)new_packet_capacity
207
+ BUFFER_SIZE);
208
if (*new_packet == NULL){
209
perror("realloc");
210
return -1;
211
}
212
new_packet_capacity += BUFFER_SIZE;
294
plaintext_capacity = adjustbuffer(plaintext,
295
(size_t)plaintext_length,
296
plaintext_capacity);
297
if (plaintext_capacity == 0){
298
perror("adjustbuffer");
299
plaintext_length = -1;
300
goto decrypt_end;
213
301
}
214
302
215
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
303
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
216
304
BUFFER_SIZE);
217
305
/* Print the data, if any */
218
306
if (ret == 0){
307
/* EOF */
219
308
break;
220
309
}
221
310
if(ret < 0){
222
311
perror("gpgme_data_read");
223
return -1;
312
plaintext_length = -1;
313
goto decrypt_end;
224
314
}
225
new_packet_length += ret;
315
plaintext_length += ret;
226
316
}
227
317
228
/* FIXME: check characters before printing to screen so to not print
229
terminal control characters */
230
/* if(debug){ */
231
/* fprintf(stderr, "decrypted password is: "); */
232
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
233
/* fprintf(stderr, "\n"); */
234
/* } */
318
if(debug){
319
fprintf(stderr, "Decrypted password is: ");
320
for(ssize_t i = 0; i < plaintext_length; i++){
321
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
322
}
323
fprintf(stderr, "\n");
324
}
325
326
decrypt_end:
327
328
/* Delete the GPGME cryptotext data buffer */
329
gpgme_data_release(dh_crypto);
235
330
236
331
/* Delete the GPGME plaintext data buffer */
237
332
gpgme_data_release(dh_plain);
238
return new_packet_length;
333
return plaintext_length;
239
334
}
240
335
241
336
static const char * safer_gnutls_strerror (int value) {
245
340
return ret;
246
341
}
247
342
248
void debuggnutls(__attribute__((unused)) int level,
249
const char* string){
250
fprintf(stderr, "%s", string);
343
/* GnuTLS log function callback */
344
static void debuggnutls(__attribute__((unused)) int level,
345
const char* string){
346
fprintf(stderr, "GnuTLS: %s", string);
251
347
}
252
348
253
int initgnutls(encrypted_session *es){
254
const char *err;
349
static int init_gnutls_global(mandos_context *mc,
350
const char *pubkeyfile,
351
const char *seckeyfile){
255
352
int ret;
256
353
257
354
if(debug){
260
357
261
358
if ((ret = gnutls_global_init ())
262
359
!= GNUTLS_E_SUCCESS) {
263
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
360
fprintf (stderr, "GnuTLS global_init: %s\n",
361
safer_gnutls_strerror(ret));
264
362
return -1;
265
363
}
266
364
267
365
if (debug){
366
/* "Use a log level over 10 to enable all debugging options."
367
* - GnuTLS manual
368
*/
268
369
gnutls_global_set_log_level(11);
269
370
gnutls_global_set_log_function(debuggnutls);
270
371
}
271
372
272
/* openpgp credentials */
273
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
373
/* OpenPGP credentials */
374
if ((ret = gnutls_certificate_allocate_credentials (&mc->cred))
274
375
!= GNUTLS_E_SUCCESS) {
275
fprintf (stderr, "memory error: %s\n",
376
fprintf (stderr, "GnuTLS memory error: %s\n",
276
377
safer_gnutls_strerror(ret));
378
gnutls_global_deinit ();
277
379
return -1;
278
380
}
279
381
280
382
if(debug){
281
383
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
282
" and keyfile %s as GnuTLS credentials\n", certfile,
283
certkey);
384
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
385
seckeyfile);
284
386
}
285
387
286
388
ret = gnutls_certificate_set_openpgp_key_file
287
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
389
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
288
390
if (ret != GNUTLS_E_SUCCESS) {
289
fprintf
290
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
291
" '%s')\n",
292
ret, certfile, certkey);
293
fprintf(stdout, "The Error is: %s\n",
391
fprintf(stderr,
392
"Error[%d] while reading the OpenPGP key pair ('%s',"
393
" '%s')\n", ret, pubkeyfile, seckeyfile);
394
fprintf(stdout, "The GnuTLS error is: %s\n",
294
395
safer_gnutls_strerror(ret));
295
return -1;
296
}
297
298
//GnuTLS server initialization
299
if ((ret = gnutls_dh_params_init (&es->dh_params))
300
!= GNUTLS_E_SUCCESS) {
301
fprintf (stderr, "Error in dh parameter initialization: %s\n",
302
safer_gnutls_strerror(ret));
303
return -1;
304
}
305
306
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
307
!= GNUTLS_E_SUCCESS) {
308
fprintf (stderr, "Error in prime generation: %s\n",
309
safer_gnutls_strerror(ret));
310
return -1;
311
}
312
313
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
314
315
// GnuTLS session creation
316
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
317
!= GNUTLS_E_SUCCESS){
396
goto globalfail;
397
}
398
399
/* GnuTLS server initialization */
400
ret = gnutls_dh_params_init(&mc->dh_params);
401
if (ret != GNUTLS_E_SUCCESS) {
402
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
403
" %s\n", safer_gnutls_strerror(ret));
404
goto globalfail;
405
}
406
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
407
if (ret != GNUTLS_E_SUCCESS) {
408
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
409
safer_gnutls_strerror(ret));
410
goto globalfail;
411
}
412
413
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
414
415
return 0;
416
417
globalfail:
418
419
gnutls_certificate_free_credentials(mc->cred);
420
gnutls_global_deinit();
421
return -1;
422
423
}
424
425
static int init_gnutls_session(mandos_context *mc,
426
gnutls_session_t *session){
427
int ret;
428
/* GnuTLS session creation */
429
ret = gnutls_init(session, GNUTLS_SERVER);
430
if (ret != GNUTLS_E_SUCCESS){
318
431
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
319
432
safer_gnutls_strerror(ret));
320
433
}
321
434
322
if ((ret = gnutls_priority_set_direct (es->session, "NORMAL", &err))
323
!= GNUTLS_E_SUCCESS) {
324
fprintf(stderr, "Syntax error at: %s\n", err);
325
fprintf(stderr, "GnuTLS error: %s\n",
326
safer_gnutls_strerror(ret));
327
return -1;
435
{
436
const char *err;
437
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
438
if (ret != GNUTLS_E_SUCCESS) {
439
fprintf(stderr, "Syntax error at: %s\n", err);
440
fprintf(stderr, "GnuTLS error: %s\n",
441
safer_gnutls_strerror(ret));
442
gnutls_deinit (*session);
443
return -1;
444
}
328
445
}
329
446
330
if ((ret = gnutls_credentials_set
331
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
332
!= GNUTLS_E_SUCCESS) {
333
fprintf(stderr, "Error setting a credentials set: %s\n",
447
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
448
mc->cred);
449
if (ret != GNUTLS_E_SUCCESS) {
450
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
334
451
safer_gnutls_strerror(ret));
452
gnutls_deinit (*session);
335
453
return -1;
336
454
}
337
455
338
456
/* ignore client certificate if any. */
339
gnutls_certificate_server_set_request (es->session,
457
gnutls_certificate_server_set_request (*session,
340
458
GNUTLS_CERT_IGNORE);
341
459
342
gnutls_dh_set_prime_bits (es->session, DH_BITS);
460
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
343
461
344
462
return 0;
345
463
}
346
464
347
void empty_log(__attribute__((unused)) AvahiLogLevel level,
348
__attribute__((unused)) const char *txt){}
465
/* Avahi log function callback */
466
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
467
__attribute__((unused)) const char *txt){}
349
468
350
int start_mandos_communication(const char *ip, uint16_t port,
351
AvahiIfIndex if_index){
469
/* Called when a Mandos server is found */
470
static int start_mandos_communication(const char *ip, uint16_t port,
471
AvahiIfIndex if_index,
472
mandos_context *mc){
352
473
int ret, tcp_sd;
353
struct sockaddr_in6 to;
354
encrypted_session es;
474
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
355
475
char *buffer = NULL;
356
476
char *decrypted_buffer;
357
477
size_t buffer_length = 0;
358
478
size_t buffer_capacity = 0;
359
479
ssize_t decrypted_buffer_size;
360
size_t written = 0;
480
size_t written;
361
481
int retval = 0;
362
482
char interface[IF_NAMESIZE];
483
gnutls_session_t session;
484
485
ret = init_gnutls_session (mc, &session);
486
if (ret != 0){
487
return -1;
488
}
363
489
364
490
if(debug){
365
491
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
371
497
perror("socket");
372
498
return -1;
373
499
}
374
375
if(if_indextoname((unsigned int)if_index, interface) == NULL){
376
if(debug){
500
501
if(debug){
502
if(if_indextoname((unsigned int)if_index, interface) == NULL){
377
503
perror("if_indextoname");
504
return -1;
378
505
}
379
return -1;
380
}
381
382
if(debug){
383
506
fprintf(stderr, "Binding to interface %s\n", interface);
384
507
}
385
508
386
509
memset(&to,0,sizeof(to)); /* Spurious warning */
387
to.sin6_family = AF_INET6;
388
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
510
to.in6.sin6_family = AF_INET6;
511
/* It would be nice to have a way to detect if we were passed an
512
IPv4 address here. Now we assume an IPv6 address. */
513
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
389
514
if (ret < 0 ){
390
515
perror("inet_pton");
391
516
return -1;
392
}
517
}
393
518
if(ret == 0){
394
519
fprintf(stderr, "Bad address: %s\n", ip);
395
520
return -1;
396
521
}
397
to.sin6_port = htons(port); /* Spurious warning */
522
to.in6.sin6_port = htons(port); /* Spurious warning */
398
523
399
to.sin6_scope_id = (uint32_t)if_index;
524
to.in6.sin6_scope_id = (uint32_t)if_index;
400
525
401
526
if(debug){
402
527
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
403
/* char addrstr[INET6_ADDRSTRLEN]; */
404
/* if(inet_ntop(to.sin6_family, &(to.sin6_addr), addrstr, */
405
/* sizeof(addrstr)) == NULL){ */
406
/* perror("inet_ntop"); */
407
/* } else { */
408
/* fprintf(stderr, "Really connecting to: %s, port %d\n", */
409
/* addrstr, ntohs(to.sin6_port)); */
410
/* } */
528
char addrstr[INET6_ADDRSTRLEN] = "";
529
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
530
sizeof(addrstr)) == NULL){
531
perror("inet_ntop");
532
} else {
533
if(strcmp(addrstr, ip) != 0){
534
fprintf(stderr, "Canonical address form: %s\n", addrstr);
535
}
536
}
411
537
}
412
538
413
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
539
ret = connect(tcp_sd, &to.in, sizeof(to));
414
540
if (ret < 0){
415
541
perror("connect");
416
542
return -1;
417
543
}
418
419
ret = initgnutls (&es);
420
if (ret != 0){
421
retval = -1;
422
return -1;
544
545
const char *out = mandos_protocol_version;
546
written = 0;
547
while (true){
548
size_t out_size = strlen(out);
549
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
550
out_size - written));
551
if (ret == -1){
552
perror("write");
553
retval = -1;
554
goto mandos_end;
555
}
556
written += (size_t)ret;
557
if(written < out_size){
558
continue;
559
} else {
560
if (out == mandos_protocol_version){
561
written = 0;
562
out = "\r\n";
563
} else {
564
break;
565
}
566
}
423
567
}
424
425
gnutls_transport_set_ptr (es.session,
426
(gnutls_transport_ptr_t) tcp_sd);
427
568
428
569
if(debug){
429
570
fprintf(stderr, "Establishing TLS session with %s\n", ip);
430
571
}
431
572
432
ret = gnutls_handshake (es.session);
573
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
574
575
ret = gnutls_handshake (session);
433
576
434
577
if (ret != GNUTLS_E_SUCCESS){
435
578
if(debug){
436
fprintf(stderr, "\n*** Handshake failed ***\n");
579
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
437
580
gnutls_perror (ret);
438
581
}
439
582
retval = -1;
440
goto exit;
583
goto mandos_end;
441
584
}
442
585
443
//Retrieve OpenPGP packet that contains the wanted password
586
/* Read OpenPGP packet that contains the wanted password */
444
587
445
588
if(debug){
446
589
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
448
591
}
449
592
450
593
while(true){
451
if (buffer_length + BUFFER_SIZE > buffer_capacity){
452
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
453
if (buffer == NULL){
454
perror("realloc");
455
goto exit;
456
}
457
buffer_capacity += BUFFER_SIZE;
594
buffer_capacity = adjustbuffer(&buffer, buffer_length,
595
buffer_capacity);
596
if (buffer_capacity == 0){
597
perror("adjustbuffer");
598
retval = -1;
599
goto mandos_end;
458
600
}
459
601
460
ret = gnutls_record_recv
461
(es.session, buffer+buffer_length, BUFFER_SIZE);
602
ret = gnutls_record_recv(session, buffer+buffer_length,
603
BUFFER_SIZE);
462
604
if (ret == 0){
463
605
break;
464
606
}
468
610
case GNUTLS_E_AGAIN:
469
611
break;
470
612
case GNUTLS_E_REHANDSHAKE:
471
ret = gnutls_handshake (es.session);
613
ret = gnutls_handshake (session);
472
614
if (ret < 0){
473
fprintf(stderr, "\n*** Handshake failed ***\n");
615
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
474
616
gnutls_perror (ret);
475
617
retval = -1;
476
goto exit;
618
goto mandos_end;
477
619
}
478
620
break;
479
621
default:
480
622
fprintf(stderr, "Unknown error while reading data from"
481
" encrypted session with mandos server\n");
623
" encrypted session with Mandos server\n");
482
624
retval = -1;
483
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
484
goto exit;
625
gnutls_bye (session, GNUTLS_SHUT_RDWR);
626
goto mandos_end;
485
627
}
486
628
} else {
487
629
buffer_length += (size_t) ret;
488
630
}
489
631
}
490
632
633
if(debug){
634
fprintf(stderr, "Closing TLS session\n");
635
}
636
637
gnutls_bye (session, GNUTLS_SHUT_RDWR);
638
491
639
if (buffer_length > 0){
492
640
decrypted_buffer_size = pgp_packet_decrypt(buffer,
493
641
buffer_length,
494
642
&decrypted_buffer,
495
certdir);
643
keydir);
496
644
if (decrypted_buffer_size >= 0){
645
written = 0;
497
646
while(written < (size_t) decrypted_buffer_size){
498
647
ret = (int)fwrite (decrypted_buffer + written, 1,
499
648
(size_t)decrypted_buffer_size - written,
513
662
retval = -1;
514
663
}
515
664
}
516
517
//shutdown procedure
518
519
if(debug){
520
fprintf(stderr, "Closing TLS session\n");
521
}
522
665
666
/* Shutdown procedure */
667
668
mandos_end:
523
669
free(buffer);
524
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
525
exit:
526
670
close(tcp_sd);
527
gnutls_deinit (es.session);
528
gnutls_certificate_free_credentials (es.cred);
529
gnutls_global_deinit ();
671
gnutls_deinit (session);
530
672
return retval;
531
673
}
532
674
533
static AvahiSimplePoll *simple_poll = NULL;
534
static AvahiServer *server = NULL;
535
536
static void resolve_callback(
537
AvahiSServiceResolver *r,
538
AvahiIfIndex interface,
539
AVAHI_GCC_UNUSED AvahiProtocol protocol,
540
AvahiResolverEvent event,
541
const char *name,
542
const char *type,
543
const char *domain,
544
const char *host_name,
545
const AvahiAddress *address,
546
uint16_t port,
547
AVAHI_GCC_UNUSED AvahiStringList *txt,
548
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
549
AVAHI_GCC_UNUSED void* userdata) {
550
675
static void resolve_callback(AvahiSServiceResolver *r,
676
AvahiIfIndex interface,
677
AVAHI_GCC_UNUSED AvahiProtocol protocol,
678
AvahiResolverEvent event,
679
const char *name,
680
const char *type,
681
const char *domain,
682
const char *host_name,
683
const AvahiAddress *address,
684
uint16_t port,
685
AVAHI_GCC_UNUSED AvahiStringList *txt,
686
AVAHI_GCC_UNUSED AvahiLookupResultFlags
687
flags,
688
void* userdata) {
689
mandos_context *mc = userdata;
551
690
assert(r); /* Spurious warning */
552
691
553
692
/* Called whenever a service has been resolved successfully or
556
695
switch (event) {
557
696
default:
558
697
case AVAHI_RESOLVER_FAILURE:
559
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of"
560
" type '%s' in domain '%s': %s\n", name, type, domain,
561
avahi_strerror(avahi_server_errno(server)));
698
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
699
" of type '%s' in domain '%s': %s\n", name, type, domain,
700
avahi_strerror(avahi_server_errno(mc->server)));
562
701
break;
563
702
564
703
case AVAHI_RESOLVER_FOUND:
566
705
char ip[AVAHI_ADDRESS_STR_MAX];
567
706
avahi_address_snprint(ip, sizeof(ip), address);
568
707
if(debug){
569
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
570
" port %d\n", name, host_name, ip, port);
708
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %d) on"
709
" port %d\n", name, host_name, ip, interface, port);
571
710
}
572
int ret = start_mandos_communication(ip, port, interface);
711
int ret = start_mandos_communication(ip, port, interface, mc);
573
712
if (ret == 0){
574
713
exit(EXIT_SUCCESS);
575
714
}
578
717
avahi_s_service_resolver_free(r);
579
718
}
580
719
581
static void browse_callback(
582
AvahiSServiceBrowser *b,
583
AvahiIfIndex interface,
584
AvahiProtocol protocol,
585
AvahiBrowserEvent event,
586
const char *name,
587
const char *type,
588
const char *domain,
589
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
590
void* userdata) {
591
592
AvahiServer *s = userdata;
593
assert(b); /* Spurious warning */
594
595
/* Called whenever a new services becomes available on the LAN or
596
is removed from the LAN */
597
598
switch (event) {
599
default:
600
case AVAHI_BROWSER_FAILURE:
601
602
fprintf(stderr, "(Browser) %s\n",
603
avahi_strerror(avahi_server_errno(server)));
604
avahi_simple_poll_quit(simple_poll);
605
return;
606
607
case AVAHI_BROWSER_NEW:
608
/* We ignore the returned resolver object. In the callback
609
function we free it. If the server is terminated before
610
the callback function is called the server will free
611
the resolver for us. */
612
613
if (!(avahi_s_service_resolver_new(s, interface, protocol, name,
614
type, domain,
615
AVAHI_PROTO_INET6, 0,
616
resolve_callback, s)))
617
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
618
avahi_strerror(avahi_server_errno(s)));
619
break;
620
621
case AVAHI_BROWSER_REMOVE:
622
break;
623
624
case AVAHI_BROWSER_ALL_FOR_NOW:
625
case AVAHI_BROWSER_CACHE_EXHAUSTED:
626
break;
720
static void browse_callback( AvahiSServiceBrowser *b,
721
AvahiIfIndex interface,
722
AvahiProtocol protocol,
723
AvahiBrowserEvent event,
724
const char *name,
725
const char *type,
726
const char *domain,
727
AVAHI_GCC_UNUSED AvahiLookupResultFlags
728
flags,
729
void* userdata) {
730
mandos_context *mc = userdata;
731
assert(b); /* Spurious warning */
732
733
/* Called whenever a new services becomes available on the LAN or
734
is removed from the LAN */
735
736
switch (event) {
737
default:
738
case AVAHI_BROWSER_FAILURE:
739
740
fprintf(stderr, "(Avahi browser) %s\n",
741
avahi_strerror(avahi_server_errno(mc->server)));
742
avahi_simple_poll_quit(mc->simple_poll);
743
return;
744
745
case AVAHI_BROWSER_NEW:
746
/* We ignore the returned Avahi resolver object. In the callback
747
function we free it. If the Avahi server is terminated before
748
the callback function is called the Avahi server will free the
749
resolver for us. */
750
751
if (!(avahi_s_service_resolver_new(mc->server, interface,
752
protocol, name, type, domain,
753
AVAHI_PROTO_INET6, 0,
754
resolve_callback, mc)))
755
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
756
name, avahi_strerror(avahi_server_errno(mc->server)));
757
break;
758
759
case AVAHI_BROWSER_REMOVE:
760
break;
761
762
case AVAHI_BROWSER_ALL_FOR_NOW:
763
case AVAHI_BROWSER_CACHE_EXHAUSTED:
764
if(debug){
765
fprintf(stderr, "No Mandos server found, still searching...\n");
627
766
}
767
break;
768
}
628
769
}
629
770
630
/* combinds file name and path and returns the malloced new string. som sane checks could/should be added */
631
const char *combinepath(const char *first, const char *second){
632
char *tmp;
633
tmp = malloc(strlen(first) + strlen(second) + 2);
771
/* Combines file name and path and returns the malloced new
772
string. some sane checks could/should be added */
773
static const char *combinepath(const char *first, const char *second){
774
size_t f_len = strlen(first);
775
size_t s_len = strlen(second);
776
char *tmp = malloc(f_len + s_len + 2);
634
777
if (tmp == NULL){
635
perror("malloc");
636
778
return NULL;
637
779
}
638
strcpy(tmp, first);
639
if (first[0] != '\0' and first[strlen(first) - 1] != '/'){
640
strcat(tmp, "/");
641
}
642
strcat(tmp, second);
780
if(f_len > 0){
781
memcpy(tmp, first, f_len); /* Spurious warning */
782
}
783
tmp[f_len] = '/';
784
if(s_len > 0){
785
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
786
}
787
tmp[f_len + 1 + s_len] = '\0';
643
788
return tmp;
644
789
}
645
790
646
791
647
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
648
AvahiServerConfig config;
792
int main(int argc, char *argv[]){
649
793
AvahiSServiceBrowser *sb = NULL;
650
794
int error;
651
795
int ret;
652
int returncode = EXIT_SUCCESS;
653
const char *interface = NULL;
796
int exitcode = EXIT_SUCCESS;
797
const char *interface = "eth0";
798
struct ifreq network;
799
int sd;
800
uid_t uid;
801
gid_t gid;
802
char *connect_to = NULL;
654
803
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
655
char *connect_to = NULL;
656
657
while (true){
658
static struct option long_options[] = {
659
{"debug", no_argument, (int *)&debug, 1},
660
{"connect", required_argument, 0, 'C'},
661
{"interface", required_argument, 0, 'i'},
662
{"certdir", required_argument, 0, 'd'},
663
{"certkey", required_argument, 0, 'c'},
664
{"certfile", required_argument, 0, 'k'},
665
{0, 0, 0, 0} };
666
667
int option_index = 0;
668
ret = getopt_long (argc, argv, "i:", long_options,
669
&option_index);
670
671
if (ret == -1){
672
break;
673
}
674
675
switch(ret){
676
case 0:
677
break;
678
case 'i':
679
interface = optarg;
680
break;
681
case 'C':
682
connect_to = optarg;
683
break;
684
case 'd':
685
certdir = optarg;
686
break;
687
case 'c':
688
certfile = optarg;
689
break;
690
case 'k':
691
certkey = optarg;
692
break;
693
default:
694
exit(EXIT_FAILURE);
695
}
696
}
697
698
certfile = combinepath(certdir, certfile);
699
if (certfile == NULL){
700
goto exit;
701
}
702
703
if(interface != NULL){
704
if_index = (AvahiIfIndex) if_nametoindex(interface);
705
if(if_index == 0){
706
fprintf(stderr, "No such interface: \"%s\"\n", interface);
707
exit(EXIT_FAILURE);
708
}
804
const char *pubkeyfile = "pubkey.txt";
805
const char *seckeyfile = "seckey.txt";
806
mandos_context mc = { .simple_poll = NULL, .server = NULL,
807
.dh_bits = 1024, .priority = "SECURE256"};
808
bool gnutls_initalized = false;
809
810
{
811
struct argp_option options[] = {
812
{ .name = "debug", .key = 128,
813
.doc = "Debug mode", .group = 3 },
814
{ .name = "connect", .key = 'c',
815
.arg = "IP",
816
.doc = "Connect directly to a sepcified mandos server",
817
.group = 1 },
818
{ .name = "interface", .key = 'i',
819
.arg = "INTERFACE",
820
.doc = "Interface that Avahi will conntect through",
821
.group = 1 },
822
{ .name = "keydir", .key = 'd',
823
.arg = "KEYDIR",
824
.doc = "Directory where the openpgp keyring is",
825
.group = 1 },
826
{ .name = "seckey", .key = 's',
827
.arg = "SECKEY",
828
.doc = "Secret openpgp key for gnutls authentication",
829
.group = 1 },
830
{ .name = "pubkey", .key = 'p',
831
.arg = "PUBKEY",
832
.doc = "Public openpgp key for gnutls authentication",
833
.group = 2 },
834
{ .name = "dh-bits", .key = 129,
835
.arg = "BITS",
836
.doc = "dh-bits to use in gnutls communication",
837
.group = 2 },
838
{ .name = "priority", .key = 130,
839
.arg = "PRIORITY",
840
.doc = "GNUTLS priority", .group = 1 },
841
{ .name = NULL }
842
};
843
844
845
error_t parse_opt (int key, char *arg,
846
struct argp_state *state) {
847
/* Get the INPUT argument from `argp_parse', which we know is
848
a pointer to our plugin list pointer. */
849
switch (key) {
850
case 128:
851
debug = true;
852
break;
853
case 'c':
854
connect_to = arg;
855
break;
856
case 'i':
857
interface = arg;
858
break;
859
case 'd':
860
keydir = arg;
861
break;
862
case 's':
863
seckeyfile = arg;
864
break;
865
case 'p':
866
pubkeyfile = arg;
867
break;
868
case 129:
869
errno = 0;
870
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
871
if (errno){
872
perror("strtol");
873
exit(EXIT_FAILURE);
874
}
875
break;
876
case 130:
877
mc.priority = arg;
878
break;
879
case ARGP_KEY_ARG:
880
argp_usage (state);
881
break;
882
case ARGP_KEY_END:
883
break;
884
default:
885
return ARGP_ERR_UNKNOWN;
886
}
887
return 0;
888
}
889
890
struct argp argp = { .options = options, .parser = parse_opt,
891
.args_doc = "",
892
.doc = "Mandos client -- Get and decrypt"
893
" passwords from mandos server" };
894
argp_parse (&argp, argc, argv, 0, 0, NULL);
895
}
896
897
pubkeyfile = combinepath(keydir, pubkeyfile);
898
if (pubkeyfile == NULL){
899
perror("combinepath");
900
exitcode = EXIT_FAILURE;
901
goto end;
902
}
903
904
seckeyfile = combinepath(keydir, seckeyfile);
905
if (seckeyfile == NULL){
906
perror("combinepath");
907
goto end;
908
}
909
910
ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);
911
if (ret == -1){
912
fprintf(stderr, "init_gnutls_global\n");
913
goto end;
914
} else {
915
gnutls_initalized = true;
916
}
917
918
uid = getuid();
919
gid = getgid();
920
921
ret = setuid(uid);
922
if (ret == -1){
923
perror("setuid");
924
}
925
926
setgid(gid);
927
if (ret == -1){
928
perror("setgid");
929
}
930
931
if_index = (AvahiIfIndex) if_nametoindex(interface);
932
if(if_index == 0){
933
fprintf(stderr, "No such interface: \"%s\"\n", interface);
934
exit(EXIT_FAILURE);
709
935
}
710
936
711
937
if(connect_to != NULL){
714
940
char *address = strrchr(connect_to, ':');
715
941
if(address == NULL){
716
942
fprintf(stderr, "No colon in address\n");
717
exit(EXIT_FAILURE);
943
exitcode = EXIT_FAILURE;
944
goto end;
718
945
}
719
946
errno = 0;
720
947
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
721
948
if(errno){
722
949
perror("Bad port number");
723
exit(EXIT_FAILURE);
950
exitcode = EXIT_FAILURE;
951
goto end;
724
952
}
725
953
*address = '\0';
726
954
address = connect_to;
727
ret = start_mandos_communication(address, port, if_index);
955
ret = start_mandos_communication(address, port, if_index, &mc);
728
956
if(ret < 0){
729
exit(EXIT_FAILURE);
957
exitcode = EXIT_FAILURE;
730
958
} else {
731
exit(EXIT_SUCCESS);
959
exitcode = EXIT_SUCCESS;
732
960
}
961
goto end;
733
962
}
734
963
735
certkey = combinepath(certdir, certkey);
736
if (certkey == NULL){
737
goto exit;
964
/* If the interface is down, bring it up */
965
{
966
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
967
if(sd < 0) {
968
perror("socket");
969
exitcode = EXIT_FAILURE;
970
goto end;
971
}
972
strcpy(network.ifr_name, interface); /* Spurious warning */
973
ret = ioctl(sd, SIOCGIFFLAGS, &network);
974
if(ret == -1){
975
perror("ioctl SIOCGIFFLAGS");
976
exitcode = EXIT_FAILURE;
977
goto end;
978
}
979
if((network.ifr_flags & IFF_UP) == 0){
980
network.ifr_flags |= IFF_UP;
981
ret = ioctl(sd, SIOCSIFFLAGS, &network);
982
if(ret == -1){
983
perror("ioctl SIOCSIFFLAGS");
984
exitcode = EXIT_FAILURE;
985
goto end;
986
}
987
}
988
close(sd);
738
989
}
739
990
740
991
if (not debug){
741
992
avahi_set_log_function(empty_log);
742
993
}
743
994
744
/* Initialize the psuedo-RNG */
995
/* Initialize the pseudo-RNG for Avahi */
745
996
srand((unsigned int) time(NULL));
746
747
/* Allocate main loop object */
748
if (!(simple_poll = avahi_simple_poll_new())) {
749
fprintf(stderr, "Failed to create simple poll object.\n");
750
751
goto exit;
752
}
753
754
/* Do not publish any local records */
755
avahi_server_config_init(&config);
756
config.publish_hinfo = 0;
757
config.publish_addresses = 0;
758
config.publish_workstation = 0;
759
config.publish_domain = 0;
760
761
/* Allocate a new server */
762
server = avahi_server_new(avahi_simple_poll_get(simple_poll),
763
&config, NULL, NULL, &error);
764
765
/* Free the configuration data */
766
avahi_server_config_free(&config);
767
768
/* Check if creating the server object succeeded */
769
if (!server) {
770
fprintf(stderr, "Failed to create server: %s\n",
997
998
/* Allocate main Avahi loop object */
999
mc.simple_poll = avahi_simple_poll_new();
1000
if (mc.simple_poll == NULL) {
1001
fprintf(stderr, "Avahi: Failed to create simple poll"
1002
" object.\n");
1003
exitcode = EXIT_FAILURE;
1004
goto end;
1005
}
1006
1007
{
1008
AvahiServerConfig config;
1009
/* Do not publish any local Zeroconf records */
1010
avahi_server_config_init(&config);
1011
config.publish_hinfo = 0;
1012
config.publish_addresses = 0;
1013
config.publish_workstation = 0;
1014
config.publish_domain = 0;
1015
1016
/* Allocate a new server */
1017
mc.server = avahi_server_new(avahi_simple_poll_get
1018
(mc.simple_poll), &config, NULL,
1019
NULL, &error);
1020
1021
/* Free the Avahi configuration data */
1022
avahi_server_config_free(&config);
1023
}
1024
1025
/* Check if creating the Avahi server object succeeded */
1026
if (mc.server == NULL) {
1027
fprintf(stderr, "Failed to create Avahi server: %s\n",
771
1028
avahi_strerror(error));
772
returncode = EXIT_FAILURE;
773
goto exit;
1029
exitcode = EXIT_FAILURE;
1030
goto end;
774
1031
}
775
1032
776
/* Create the service browser */
777
sb = avahi_s_service_browser_new(server, if_index,
1033
/* Create the Avahi service browser */
1034
sb = avahi_s_service_browser_new(mc.server, if_index,
778
1035
AVAHI_PROTO_INET6,
779
1036
"_mandos._tcp", NULL, 0,
780
browse_callback, server);
781
if (!sb) {
1037
browse_callback, &mc);
1038
if (sb == NULL) {
782
1039
fprintf(stderr, "Failed to create service browser: %s\n",
783
avahi_strerror(avahi_server_errno(server)));
784
returncode = EXIT_FAILURE;
785
goto exit;
1040
avahi_strerror(avahi_server_errno(mc.server)));
1041
exitcode = EXIT_FAILURE;
1042
goto end;
786
1043
}
787
1044
788
1045
/* Run the main loop */
789
1046
790
1047
if (debug){
791
fprintf(stderr, "Starting avahi loop search\n");
1048
fprintf(stderr, "Starting Avahi loop search\n");
792
1049
}
793
1050
794
avahi_simple_poll_loop(simple_poll);
1051
avahi_simple_poll_loop(mc.simple_poll);
795
1052
796
exit:
1053
end:
797
1054
798
1055
if (debug){
799
1056
fprintf(stderr, "%s exiting\n", argv[0]);
800
1057
}
801
1058
802
1059
/* Cleanup things */
803
if (sb)
1060
if (sb != NULL)
804
1061
avahi_s_service_browser_free(sb);
805
1062
806
if (server)
807
avahi_server_free(server);
808
809
if (simple_poll)
810
avahi_simple_poll_free(simple_poll);
811
free(certfile);
812
free(certkey);
1063
if (mc.server != NULL)
1064
avahi_server_free(mc.server);
1065
1066
if (mc.simple_poll != NULL)
1067
avahi_simple_poll_free(mc.simple_poll);
1068
free(pubkeyfile);
1069
free(seckeyfile);
1070
1071
if (gnutls_initalized){
1072
gnutls_certificate_free_credentials (mc.cred);
1073
gnutls_global_deinit ();
1074
}
813
1075
814
return returncode;
1076
return exitcode;
815
1077
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0