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- Committer: Björn Påhlsson
- Date: 2008-08-10 00:07:24 UTC
- mfrom: (56 mandos)
- mto: (24.1.154 mandos) (237.4.3 mandos-release)
- mto: This revision was merged to the branch mainline in revision 58.
- Revision ID: belorn@braxen-20080810000724-zm9y5iasq9iujuo5
synopsis changed
- files added:
- mandos-client.xml
- files removed:
- ca.pem
- files renamed:
- mandos-clients.conf => clients.conf
- server.py => mandos
- plugbasedclient.c => mandos-client.c
- 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
8
8
* includes the following functions: "resolve_callback",
9
9
* "browse_callback", and parts of "main".
10
10
*
11
* Everything else is Copyright © 2007-2008 Teddy Hogeborn and Björn
12
* Påhlsson.
11
* Everything else is
12
* Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
13
13
*
14
14
* This program is free software: you can redistribute it and/or
15
15
* modify it under the terms of the GNU General Public License as
25
25
* along with this program. If not, see
26
26
* <http://www.gnu.org/licenses/>.
27
27
*
28
* Contact the authors at <https://www.fukt.bsnet.se/~belorn/> and
29
* <https://www.fukt.bsnet.se/~teddy/>.
28
* Contact the authors at <mandos@fukt.bsnet.se>.
30
29
*/
31
30
32
#define _FORTIFY_SOURCE 2
33
31
/* Needed by GPGME, specifically gpgme_data_seek() */
34
32
#define _LARGEFILE_SOURCE
35
33
#define _FILE_OFFSET_BITS 64
36
34
37
#include <stdio.h>
38
#include <assert.h>
39
#include <stdlib.h>
40
#include <time.h>
41
#include <net/if.h> /* if_nametoindex */
42
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */
36
37
#include <stdio.h> /* fprintf(), stderr, fwrite(), stdout,
38
ferror() */
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,
42
srand() */
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,
48
IFF_UP */
49
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
50
sockaddr_in6, PF_INET6,
51
SOCK_STREAM, INET6_ADDRSTRLEN,
52
uid_t, gid_t */
53
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
54
struct in6_addr, inet_pton(),
55
connect() */
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(),
64
setgid() */
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 */
72
73
/* Avahi */
74
/* All Avahi types, constants and functions
75
Avahi*, avahi_*,
76
AVAHI_* */
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>
49
83
50
//mandos client part
51
#include <sys/types.h> /* socket(), setsockopt(),
52
inet_pton() */
53
#include <sys/socket.h> /* socket(), setsockopt(),
54
struct sockaddr_in6,
55
struct in6_addr, inet_pton() */
56
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
57
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
58
59
#include <unistd.h> /* close() */
60
#include <netinet/in.h>
61
#include <stdbool.h> /* true */
62
#include <string.h> /* memset */
63
#include <arpa/inet.h> /* inet_pton() */
64
#include <iso646.h> /* not */
65
66
// gpgme
67
#include <errno.h> /* perror() */
68
#include <gpgme.h>
69
70
// getopt long
71
#include <getopt.h>
72
73
#ifndef CERT_ROOT
74
#define CERT_ROOT "/conf/conf.d/cryptkeyreq/"
75
#endif
76
#define CERTFILE CERT_ROOT "openpgp-client.txt"
77
#define KEYFILE CERT_ROOT "openpgp-client-key.txt"
84
/* GnuTLS */
85
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and functions
86
gnutls_*
87
init_gnutls_session(),
88
GNUTLS_* */
89
#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),
90
GNUTLS_OPENPGP_FMT_BASE64 */
91
92
/* GPGME */
93
#include <gpgme.h> /* All GPGME types, constants and functions
94
gpgme_*
95
GPGME_PROTOCOL_OpenPGP,
96
GPG_ERR_NO_* */
97
78
98
#define BUFFER_SIZE 256
79
#define DH_BITS 1024
80
99
81
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 = "mandosclient 0.9";
104
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
82
105
106
/* Used for passing in values through the Avahi callback functions */
83
107
typedef struct {
84
gnutls_session_t session;
108
AvahiSimplePoll *simple_poll;
109
AvahiServer *server;
85
110
gnutls_certificate_credentials_t cred;
111
unsigned int dh_bits;
86
112
gnutls_dh_params_t dh_params;
87
} encrypted_session;
88
89
90
ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
91
char **new_packet, const char *homedir){
113
const char *priority;
114
} mandos_context;
115
116
/*
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.
120
*/
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);
125
if (buffer == NULL){
126
return 0;
127
}
128
buffer_capacity += BUFFER_SIZE;
129
}
130
return buffer_capacity;
131
}
132
133
/*
134
* Decrypt OpenPGP data using keyrings in HOMEDIR.
135
* Returns -1 on error
136
*/
137
static ssize_t pgp_packet_decrypt (const char *cryptotext,
138
size_t crypto_size,
139
char **plaintext,
140
const char *homedir){
92
141
gpgme_data_t dh_crypto, dh_plain;
93
142
gpgme_ctx_t ctx;
94
143
gpgme_error_t rc;
95
144
ssize_t ret;
96
ssize_t new_packet_capacity = 0;
97
ssize_t new_packet_length = 0;
145
size_t plaintext_capacity = 0;
146
ssize_t plaintext_length = 0;
98
147
gpgme_engine_info_t engine_info;
99
148
100
149
if (debug){
101
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
150
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
102
151
}
103
152
104
153
/* Init GPGME */
105
154
gpgme_check_version(NULL);
106
gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
155
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
156
if (rc != GPG_ERR_NO_ERROR){
157
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
158
gpgme_strsource(rc), gpgme_strerror(rc));
159
return -1;
160
}
107
161
108
/* Set GPGME home directory */
162
/* Set GPGME home directory for the OpenPGP engine only */
109
163
rc = gpgme_get_engine_info (&engine_info);
110
164
if (rc != GPG_ERR_NO_ERROR){
111
165
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
121
175
engine_info = engine_info->next;
122
176
}
123
177
if(engine_info == NULL){
124
fprintf(stderr, "Could not set home dir to %s\n", homedir);
178
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
125
179
return -1;
126
180
}
127
181
128
/* Create new GPGME data buffer from packet buffer */
129
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
182
/* Create new GPGME data buffer from memory cryptotext */
183
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
184
0);
130
185
if (rc != GPG_ERR_NO_ERROR){
131
186
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
132
187
gpgme_strsource(rc), gpgme_strerror(rc));
138
193
if (rc != GPG_ERR_NO_ERROR){
139
194
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
140
195
gpgme_strsource(rc), gpgme_strerror(rc));
196
gpgme_data_release(dh_crypto);
141
197
return -1;
142
198
}
143
199
146
202
if (rc != GPG_ERR_NO_ERROR){
147
203
fprintf(stderr, "bad gpgme_new: %s: %s\n",
148
204
gpgme_strsource(rc), gpgme_strerror(rc));
149
return -1;
205
plaintext_length = -1;
206
goto decrypt_end;
150
207
}
151
208
152
/* Decrypt data from the FILE pointer to the plaintext data
153
buffer */
209
/* Decrypt data from the cryptotext data buffer to the plaintext
210
data buffer */
154
211
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
155
212
if (rc != GPG_ERR_NO_ERROR){
156
213
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
157
214
gpgme_strsource(rc), gpgme_strerror(rc));
158
return -1;
215
plaintext_length = -1;
216
goto decrypt_end;
159
217
}
160
218
161
219
if(debug){
162
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
220
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
163
221
}
164
222
165
223
if (debug){
166
224
gpgme_decrypt_result_t result;
167
225
result = gpgme_op_decrypt_result(ctx);
191
249
}
192
250
}
193
251
194
/* Delete the GPGME FILE pointer cryptotext data buffer */
195
gpgme_data_release(dh_crypto);
196
197
252
/* Seek back to the beginning of the GPGME plaintext data buffer */
198
gpgme_data_seek(dh_plain, 0, SEEK_SET);
199
200
*new_packet = 0;
253
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
254
perror("pgpme_data_seek");
255
plaintext_length = -1;
256
goto decrypt_end;
257
}
258
259
*plaintext = NULL;
201
260
while(true){
202
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
203
*new_packet = realloc(*new_packet,
204
(unsigned int)new_packet_capacity
205
+ BUFFER_SIZE);
206
if (*new_packet == NULL){
207
perror("realloc");
208
return -1;
209
}
210
new_packet_capacity += BUFFER_SIZE;
261
plaintext_capacity = adjustbuffer(plaintext,
262
(size_t)plaintext_length,
263
plaintext_capacity);
264
if (plaintext_capacity == 0){
265
perror("adjustbuffer");
266
plaintext_length = -1;
267
goto decrypt_end;
211
268
}
212
269
213
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
270
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
214
271
BUFFER_SIZE);
215
272
/* Print the data, if any */
216
273
if (ret == 0){
274
/* EOF */
217
275
break;
218
276
}
219
277
if(ret < 0){
220
278
perror("gpgme_data_read");
221
return -1;
279
plaintext_length = -1;
280
goto decrypt_end;
222
281
}
223
new_packet_length += ret;
282
plaintext_length += ret;
224
283
}
225
284
226
/* FIXME: check characters before printing to screen so to not print
227
terminal control characters */
228
/* if(debug){ */
229
/* fprintf(stderr, "decrypted password is: "); */
230
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
231
/* fprintf(stderr, "\n"); */
232
/* } */
285
if(debug){
286
fprintf(stderr, "Decrypted password is: ");
287
for(ssize_t i = 0; i < plaintext_length; i++){
288
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
289
}
290
fprintf(stderr, "\n");
291
}
292
293
decrypt_end:
294
295
/* Delete the GPGME cryptotext data buffer */
296
gpgme_data_release(dh_crypto);
233
297
234
298
/* Delete the GPGME plaintext data buffer */
235
299
gpgme_data_release(dh_plain);
236
return new_packet_length;
300
return plaintext_length;
237
301
}
238
302
239
303
static const char * safer_gnutls_strerror (int value) {
243
307
return ret;
244
308
}
245
309
246
void debuggnutls(__attribute__((unused)) int level,
247
const char* string){
248
fprintf(stderr, "%s", string);
310
/* GnuTLS log function callback */
311
static void debuggnutls(__attribute__((unused)) int level,
312
const char* string){
313
fprintf(stderr, "GnuTLS: %s", string);
249
314
}
250
315
251
int initgnutls(encrypted_session *es){
252
const char *err;
316
static int init_gnutls_global(mandos_context *mc,
317
const char *pubkeyfile,
318
const char *seckeyfile){
253
319
int ret;
254
320
255
321
if(debug){
256
322
fprintf(stderr, "Initializing GnuTLS\n");
257
323
}
258
324
259
if ((ret = gnutls_global_init ())
260
!= GNUTLS_E_SUCCESS) {
261
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));
262
329
return -1;
263
330
}
264
331
265
332
if (debug){
333
/* "Use a log level over 10 to enable all debugging options."
334
* - GnuTLS manual
335
*/
266
336
gnutls_global_set_log_level(11);
267
337
gnutls_global_set_log_function(debuggnutls);
268
338
}
269
339
270
/* openpgp credentials */
271
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
272
!= GNUTLS_E_SUCCESS) {
273
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",
274
344
safer_gnutls_strerror(ret));
345
gnutls_global_deinit ();
275
346
return -1;
276
347
}
277
348
278
349
if(debug){
279
350
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
280
" and keyfile %s as GnuTLS credentials\n", CERTFILE,
281
KEYFILE);
351
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
352
seckeyfile);
282
353
}
283
354
284
355
ret = gnutls_certificate_set_openpgp_key_file
285
(es->cred, CERTFILE, KEYFILE, GNUTLS_OPENPGP_FMT_BASE64);
356
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
286
357
if (ret != GNUTLS_E_SUCCESS) {
287
fprintf
288
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
289
" '%s')\n",
290
ret, CERTFILE, KEYFILE);
291
fprintf(stdout, "The Error is: %s\n",
358
fprintf(stderr,
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",
292
362
safer_gnutls_strerror(ret));
293
return -1;
294
}
295
296
//GnuTLS server initialization
297
if ((ret = gnutls_dh_params_init (&es->dh_params))
298
!= GNUTLS_E_SUCCESS) {
299
fprintf (stderr, "Error in dh parameter initialization: %s\n",
300
safer_gnutls_strerror(ret));
301
return -1;
302
}
303
304
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
305
!= GNUTLS_E_SUCCESS) {
306
fprintf (stderr, "Error in prime generation: %s\n",
307
safer_gnutls_strerror(ret));
308
return -1;
309
}
310
311
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
312
313
// GnuTLS session creation
314
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
315
!= GNUTLS_E_SUCCESS){
363
goto globalfail;
364
}
365
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));
371
goto globalfail;
372
}
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));
377
goto globalfail;
378
}
379
380
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
381
382
return 0;
383
384
globalfail:
385
386
gnutls_certificate_free_credentials(mc->cred);
387
gnutls_global_deinit();
388
return -1;
389
390
}
391
392
static int init_gnutls_session(mandos_context *mc,
393
gnutls_session_t *session){
394
int ret;
395
/* GnuTLS session creation */
396
ret = gnutls_init(session, GNUTLS_SERVER);
397
if (ret != GNUTLS_E_SUCCESS){
316
398
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
317
399
safer_gnutls_strerror(ret));
318
400
}
319
401
320
if ((ret = gnutls_priority_set_direct (es->session, "NORMAL", &err))
321
!= GNUTLS_E_SUCCESS) {
322
fprintf(stderr, "Syntax error at: %s\n", err);
323
fprintf(stderr, "GnuTLS error: %s\n",
324
safer_gnutls_strerror(ret));
325
return -1;
402
{
403
const char *err;
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);
410
return -1;
411
}
326
412
}
327
413
328
if ((ret = gnutls_credentials_set
329
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
330
!= GNUTLS_E_SUCCESS) {
331
fprintf(stderr, "Error setting a credentials set: %s\n",
414
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
415
mc->cred);
416
if (ret != GNUTLS_E_SUCCESS) {
417
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
332
418
safer_gnutls_strerror(ret));
419
gnutls_deinit (*session);
333
420
return -1;
334
421
}
335
422
336
423
/* ignore client certificate if any. */
337
gnutls_certificate_server_set_request (es->session,
424
gnutls_certificate_server_set_request (*session,
338
425
GNUTLS_CERT_IGNORE);
339
426
340
gnutls_dh_set_prime_bits (es->session, DH_BITS);
427
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
341
428
342
429
return 0;
343
430
}
344
431
345
void empty_log(__attribute__((unused)) AvahiLogLevel level,
346
__attribute__((unused)) const char *txt){}
432
/* Avahi log function callback */
433
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
434
__attribute__((unused)) const char *txt){}
347
435
348
int start_mandos_communication(char *ip, uint16_t port,
349
unsigned int if_index){
436
/* Called when a Mandos server is found */
437
static int start_mandos_communication(const char *ip, uint16_t port,
438
AvahiIfIndex if_index,
439
mandos_context *mc){
350
440
int ret, tcp_sd;
351
struct sockaddr_in6 to;
352
encrypted_session es;
441
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
353
442
char *buffer = NULL;
354
443
char *decrypted_buffer;
355
444
size_t buffer_length = 0;
356
445
size_t buffer_capacity = 0;
357
446
ssize_t decrypted_buffer_size;
447
size_t written;
358
448
int retval = 0;
359
449
char interface[IF_NAMESIZE];
450
gnutls_session_t session;
451
452
ret = init_gnutls_session (mc, &session);
453
if (ret != 0){
454
return -1;
455
}
360
456
361
457
if(debug){
362
fprintf(stderr, "Setting up a tcp connection to %s\n", ip);
458
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
459
ip, port);
363
460
}
364
461
365
462
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
367
464
perror("socket");
368
465
return -1;
369
466
}
370
371
if(if_indextoname(if_index, interface) == NULL){
372
if(debug){
467
468
if(debug){
469
if(if_indextoname((unsigned int)if_index, interface) == NULL){
373
470
perror("if_indextoname");
471
return -1;
374
472
}
375
return -1;
376
}
377
378
if(debug){
379
473
fprintf(stderr, "Binding to interface %s\n", interface);
380
474
}
381
475
382
ret = setsockopt(tcp_sd, SOL_SOCKET, SO_BINDTODEVICE, interface, 5);
383
if(ret < 0) {
384
perror("setsockopt bindtodevice");
385
return -1;
386
}
387
388
memset(&to,0,sizeof(to));
389
to.sin6_family = AF_INET6;
390
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
476
memset(&to,0,sizeof(to)); /* Spurious warning */
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);
391
481
if (ret < 0 ){
392
482
perror("inet_pton");
393
483
return -1;
394
}
484
}
395
485
if(ret == 0){
396
486
fprintf(stderr, "Bad address: %s\n", ip);
397
487
return -1;
398
488
}
399
/* Spurious warnings for the next line, see for instance
400
<http://bugs.debian.org/488884> */
401
to.sin6_port = htons(port);
489
to.in6.sin6_port = htons(port); /* Spurious warning */
402
490
403
to.sin6_scope_id = (uint32_t)if_index;
491
to.in6.sin6_scope_id = (uint32_t)if_index;
404
492
405
493
if(debug){
406
fprintf(stderr, "Connection to: %s\n", ip);
494
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
495
char addrstr[INET6_ADDRSTRLEN] = "";
496
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
497
sizeof(addrstr)) == NULL){
498
perror("inet_ntop");
499
} else {
500
if(strcmp(addrstr, ip) != 0){
501
fprintf(stderr, "Canonical address form: %s\n", addrstr);
502
}
503
}
407
504
}
408
505
409
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
506
ret = connect(tcp_sd, &to.in, sizeof(to));
410
507
if (ret < 0){
411
508
perror("connect");
412
509
return -1;
413
510
}
414
415
ret = initgnutls (&es);
416
if (ret != 0){
417
retval = -1;
418
return -1;
511
512
const char *out = mandos_protocol_version;
513
written = 0;
514
while (true){
515
size_t out_size = strlen(out);
516
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
517
out_size - written));
518
if (ret == -1){
519
perror("write");
520
retval = -1;
521
goto mandos_end;
522
}
523
written += (size_t)ret;
524
if(written < out_size){
525
continue;
526
} else {
527
if (out == mandos_protocol_version){
528
written = 0;
529
out = "\r\n";
530
} else {
531
break;
532
}
533
}
419
534
}
420
421
gnutls_transport_set_ptr (es.session,
422
(gnutls_transport_ptr_t) tcp_sd);
423
535
424
536
if(debug){
425
537
fprintf(stderr, "Establishing TLS session with %s\n", ip);
426
538
}
427
539
428
ret = gnutls_handshake (es.session);
540
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
541
542
do{
543
ret = gnutls_handshake (session);
544
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
429
545
430
546
if (ret != GNUTLS_E_SUCCESS){
431
fprintf(stderr, "\n*** Handshake failed ***\n");
432
gnutls_perror (ret);
547
if(debug){
548
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
549
gnutls_perror (ret);
550
}
433
551
retval = -1;
434
goto exit;
552
goto mandos_end;
435
553
}
436
554
437
//Retrieve OpenPGP packet that contains the wanted password
555
/* Read OpenPGP packet that contains the wanted password */
438
556
439
557
if(debug){
440
558
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
442
560
}
443
561
444
562
while(true){
445
if (buffer_length + BUFFER_SIZE > buffer_capacity){
446
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
447
if (buffer == NULL){
448
perror("realloc");
449
goto exit;
450
}
451
buffer_capacity += BUFFER_SIZE;
563
buffer_capacity = adjustbuffer(&buffer, buffer_length,
564
buffer_capacity);
565
if (buffer_capacity == 0){
566
perror("adjustbuffer");
567
retval = -1;
568
goto mandos_end;
452
569
}
453
570
454
ret = gnutls_record_recv
455
(es.session, buffer+buffer_length, BUFFER_SIZE);
571
ret = gnutls_record_recv(session, buffer+buffer_length,
572
BUFFER_SIZE);
456
573
if (ret == 0){
457
574
break;
458
575
}
462
579
case GNUTLS_E_AGAIN:
463
580
break;
464
581
case GNUTLS_E_REHANDSHAKE:
465
ret = gnutls_handshake (es.session);
582
do{
583
ret = gnutls_handshake (session);
584
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
466
585
if (ret < 0){
467
fprintf(stderr, "\n*** Handshake failed ***\n");
586
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
468
587
gnutls_perror (ret);
469
588
retval = -1;
470
goto exit;
589
goto mandos_end;
471
590
}
472
591
break;
473
592
default:
474
593
fprintf(stderr, "Unknown error while reading data from"
475
" encrypted session with mandos server\n");
594
" encrypted session with Mandos server\n");
476
595
retval = -1;
477
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
478
goto exit;
596
gnutls_bye (session, GNUTLS_SHUT_RDWR);
597
goto mandos_end;
479
598
}
480
599
} else {
481
600
buffer_length += (size_t) ret;
482
601
}
483
602
}
484
603
604
if(debug){
605
fprintf(stderr, "Closing TLS session\n");
606
}
607
608
gnutls_bye (session, GNUTLS_SHUT_RDWR);
609
485
610
if (buffer_length > 0){
486
611
decrypted_buffer_size = pgp_packet_decrypt(buffer,
487
612
buffer_length,
488
613
&decrypted_buffer,
489
CERT_ROOT);
614
keydir);
490
615
if (decrypted_buffer_size >= 0){
491
while(decrypted_buffer_size > 0){
492
ret = fwrite (decrypted_buffer, 1, (size_t)decrypted_buffer_size,
493
stdout);
616
written = 0;
617
while(written < (size_t) decrypted_buffer_size){
618
ret = (int)fwrite (decrypted_buffer + written, 1,
619
(size_t)decrypted_buffer_size - written,
620
stdout);
494
621
if(ret == 0 and ferror(stdout)){
495
622
if(debug){
496
623
fprintf(stderr, "Error writing encrypted data: %s\n",
499
626
retval = -1;
500
627
break;
501
628
}
502
decrypted_buffer += ret;
503
decrypted_buffer_size -= ret;
629
written += (size_t)ret;
504
630
}
505
631
free(decrypted_buffer);
506
632
} else {
507
633
retval = -1;
508
634
}
509
635
}
510
511
//shutdown procedure
512
513
if(debug){
514
fprintf(stderr, "Closing TLS session\n");
515
}
516
636
637
/* Shutdown procedure */
638
639
mandos_end:
517
640
free(buffer);
518
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
519
exit:
520
641
close(tcp_sd);
521
gnutls_deinit (es.session);
522
gnutls_certificate_free_credentials (es.cred);
523
gnutls_global_deinit ();
642
gnutls_deinit (session);
524
643
return retval;
525
644
}
526
645
527
static AvahiSimplePoll *simple_poll = NULL;
528
static AvahiServer *server = NULL;
529
530
static void resolve_callback(
531
AvahiSServiceResolver *r,
532
AVAHI_GCC_UNUSED AvahiIfIndex interface,
533
AVAHI_GCC_UNUSED AvahiProtocol protocol,
534
AvahiResolverEvent event,
535
const char *name,
536
const char *type,
537
const char *domain,
538
const char *host_name,
539
const AvahiAddress *address,
540
uint16_t port,
541
AVAHI_GCC_UNUSED AvahiStringList *txt,
542
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
543
AVAHI_GCC_UNUSED void* userdata) {
544
545
assert(r);
546
646
static void resolve_callback(AvahiSServiceResolver *r,
647
AvahiIfIndex interface,
648
AVAHI_GCC_UNUSED AvahiProtocol protocol,
649
AvahiResolverEvent event,
650
const char *name,
651
const char *type,
652
const char *domain,
653
const char *host_name,
654
const AvahiAddress *address,
655
uint16_t port,
656
AVAHI_GCC_UNUSED AvahiStringList *txt,
657
AVAHI_GCC_UNUSED AvahiLookupResultFlags
658
flags,
659
void* userdata) {
660
mandos_context *mc = userdata;
661
assert(r); /* Spurious warning */
662
547
663
/* Called whenever a service has been resolved successfully or
548
664
timed out */
549
665
550
666
switch (event) {
551
667
default:
552
668
case AVAHI_RESOLVER_FAILURE:
553
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of"
554
" type '%s' in domain '%s': %s\n", name, type, domain,
555
avahi_strerror(avahi_server_errno(server)));
669
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
670
" of type '%s' in domain '%s': %s\n", name, type, domain,
671
avahi_strerror(avahi_server_errno(mc->server)));
556
672
break;
557
673
558
674
case AVAHI_RESOLVER_FOUND:
559
675
{
560
676
char ip[AVAHI_ADDRESS_STR_MAX];
561
677
avahi_address_snprint(ip, sizeof(ip), address);
562
678
if(debug){
563
fprintf(stderr, "Mandos server found on %s (%s) on port %d\n",
564
host_name, ip, port);
679
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %d) on"
680
" port %d\n", name, host_name, ip, interface, port);
565
681
}
566
int ret = start_mandos_communication(ip, port,
567
(unsigned int)
568
interface);
682
int ret = start_mandos_communication(ip, port, interface, mc);
569
683
if (ret == 0){
570
684
exit(EXIT_SUCCESS);
571
} else {
572
exit(EXIT_FAILURE);
573
685
}
574
686
}
575
687
}
576
688
avahi_s_service_resolver_free(r);
577
689
}
578
690
579
static void browse_callback(
580
AvahiSServiceBrowser *b,
581
AvahiIfIndex interface,
582
AvahiProtocol protocol,
583
AvahiBrowserEvent event,
584
const char *name,
585
const char *type,
586
const char *domain,
587
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
588
void* userdata) {
589
590
AvahiServer *s = userdata;
591
assert(b);
592
593
/* Called whenever a new services becomes available on the LAN or
594
is removed from the LAN */
595
596
switch (event) {
597
default:
598
case AVAHI_BROWSER_FAILURE:
599
600
fprintf(stderr, "(Browser) %s\n",
601
avahi_strerror(avahi_server_errno(server)));
602
avahi_simple_poll_quit(simple_poll);
603
return;
604
605
case AVAHI_BROWSER_NEW:
606
/* We ignore the returned resolver object. In the callback
607
function we free it. If the server is terminated before
608
the callback function is called the server will free
609
the resolver for us. */
610
611
if (!(avahi_s_service_resolver_new(s, interface, protocol, name,
612
type, domain,
613
AVAHI_PROTO_INET6, 0,
614
resolve_callback, s)))
615
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
616
avahi_strerror(avahi_server_errno(s)));
617
break;
618
619
case AVAHI_BROWSER_REMOVE:
620
break;
621
622
case AVAHI_BROWSER_ALL_FOR_NOW:
623
case AVAHI_BROWSER_CACHE_EXHAUSTED:
624
break;
691
static void browse_callback( AvahiSServiceBrowser *b,
692
AvahiIfIndex interface,
693
AvahiProtocol protocol,
694
AvahiBrowserEvent event,
695
const char *name,
696
const char *type,
697
const char *domain,
698
AVAHI_GCC_UNUSED AvahiLookupResultFlags
699
flags,
700
void* userdata) {
701
mandos_context *mc = userdata;
702
assert(b); /* Spurious warning */
703
704
/* Called whenever a new services becomes available on the LAN or
705
is removed from the LAN */
706
707
switch (event) {
708
default:
709
case AVAHI_BROWSER_FAILURE:
710
711
fprintf(stderr, "(Avahi browser) %s\n",
712
avahi_strerror(avahi_server_errno(mc->server)));
713
avahi_simple_poll_quit(mc->simple_poll);
714
return;
715
716
case AVAHI_BROWSER_NEW:
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
720
resolver for us. */
721
722
if (!(avahi_s_service_resolver_new(mc->server, interface,
723
protocol, name, type, domain,
724
AVAHI_PROTO_INET6, 0,
725
resolve_callback, mc)))
726
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
727
name, avahi_strerror(avahi_server_errno(mc->server)));
728
break;
729
730
case AVAHI_BROWSER_REMOVE:
731
break;
732
733
case AVAHI_BROWSER_ALL_FOR_NOW:
734
case AVAHI_BROWSER_CACHE_EXHAUSTED:
735
if(debug){
736
fprintf(stderr, "No Mandos server found, still searching...\n");
625
737
}
626
}
627
628
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
629
AvahiServerConfig config;
738
break;
739
}
740
}
741
742
/* Combines file name and path and returns the malloced new
743
string. some sane checks could/should be added */
744
static const char *combinepath(const char *first, const char *second){
745
size_t f_len = strlen(first);
746
size_t s_len = strlen(second);
747
char *tmp = malloc(f_len + s_len + 2);
748
if (tmp == NULL){
749
return NULL;
750
}
751
if(f_len > 0){
752
memcpy(tmp, first, f_len); /* Spurious warning */
753
}
754
tmp[f_len] = '/';
755
if(s_len > 0){
756
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
757
}
758
tmp[f_len + 1 + s_len] = '\0';
759
return tmp;
760
}
761
762
763
int main(int argc, char *argv[]){
630
764
AvahiSServiceBrowser *sb = NULL;
631
765
int error;
632
766
int ret;
633
int returncode = EXIT_SUCCESS;
767
int exitcode = EXIT_SUCCESS;
634
768
const char *interface = "eth0";
635
636
while (true){
637
static struct option long_options[] = {
638
{"debug", no_argument, (int *)&debug, 1},
639
{"interface", required_argument, 0, 'i'},
640
{0, 0, 0, 0} };
641
642
int option_index = 0;
643
ret = getopt_long (argc, argv, "i:", long_options,
644
&option_index);
645
646
if (ret == -1){
647
break;
648
}
649
650
switch(ret){
651
case 0:
652
break;
653
case 'i':
654
interface = optarg;
655
break;
656
default:
657
exit(EXIT_FAILURE);
658
}
769
struct ifreq network;
770
int sd;
771
uid_t uid;
772
gid_t gid;
773
char *connect_to = NULL;
774
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
775
const char *pubkeyfile = "pubkey.txt";
776
const char *seckeyfile = "seckey.txt";
777
mandos_context mc = { .simple_poll = NULL, .server = NULL,
778
.dh_bits = 1024, .priority = "SECURE256"};
779
bool gnutls_initalized = false;
780
781
{
782
struct argp_option options[] = {
783
{ .name = "debug", .key = 128,
784
.doc = "Debug mode", .group = 3 },
785
{ .name = "connect", .key = 'c',
786
.arg = "IP",
787
.doc = "Connect directly to a sepcified mandos server",
788
.group = 1 },
789
{ .name = "interface", .key = 'i',
790
.arg = "INTERFACE",
791
.doc = "Interface that Avahi will conntect through",
792
.group = 1 },
793
{ .name = "keydir", .key = 'd',
794
.arg = "KEYDIR",
795
.doc = "Directory where the openpgp keyring is",
796
.group = 1 },
797
{ .name = "seckey", .key = 's',
798
.arg = "SECKEY",
799
.doc = "Secret openpgp key for gnutls authentication",
800
.group = 1 },
801
{ .name = "pubkey", .key = 'p',
802
.arg = "PUBKEY",
803
.doc = "Public openpgp key for gnutls authentication",
804
.group = 2 },
805
{ .name = "dh-bits", .key = 129,
806
.arg = "BITS",
807
.doc = "dh-bits to use in gnutls communication",
808
.group = 2 },
809
{ .name = "priority", .key = 130,
810
.arg = "PRIORITY",
811
.doc = "GNUTLS priority", .group = 1 },
812
{ .name = NULL }
813
};
814
815
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. */
820
switch (key) {
821
case 128:
822
debug = true;
823
break;
824
case 'c':
825
connect_to = arg;
826
break;
827
case 'i':
828
interface = arg;
829
break;
830
case 'd':
831
keydir = arg;
832
break;
833
case 's':
834
seckeyfile = arg;
835
break;
836
case 'p':
837
pubkeyfile = arg;
838
break;
839
case 129:
840
errno = 0;
841
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
842
if (errno){
843
perror("strtol");
844
exit(EXIT_FAILURE);
845
}
846
break;
847
case 130:
848
mc.priority = arg;
849
break;
850
case ARGP_KEY_ARG:
851
argp_usage (state);
852
break;
853
case ARGP_KEY_END:
854
break;
855
default:
856
return ARGP_ERR_UNKNOWN;
857
}
858
return 0;
859
}
860
861
struct argp argp = { .options = options, .parser = parse_opt,
862
.args_doc = "",
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;
869
goto end;
870
}
871
}
872
873
pubkeyfile = combinepath(keydir, pubkeyfile);
874
if (pubkeyfile == NULL){
875
perror("combinepath");
876
exitcode = EXIT_FAILURE;
877
goto end;
878
}
879
880
seckeyfile = combinepath(keydir, seckeyfile);
881
if (seckeyfile == NULL){
882
perror("combinepath");
883
goto end;
884
}
885
886
ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);
887
if (ret == -1){
888
fprintf(stderr, "init_gnutls_global\n");
889
goto end;
890
} else {
891
gnutls_initalized = true;
892
}
893
894
uid = getuid();
895
gid = getgid();
896
897
ret = setuid(uid);
898
if (ret == -1){
899
perror("setuid");
900
}
901
902
setgid(gid);
903
if (ret == -1){
904
perror("setgid");
905
}
906
907
if_index = (AvahiIfIndex) if_nametoindex(interface);
908
if(if_index == 0){
909
fprintf(stderr, "No such interface: \"%s\"\n", interface);
910
exit(EXIT_FAILURE);
911
}
912
913
if(connect_to != NULL){
914
/* Connect directly, do not use Zeroconf */
915
/* (Mainly meant for debugging) */
916
char *address = strrchr(connect_to, ':');
917
if(address == NULL){
918
fprintf(stderr, "No colon in address\n");
919
exitcode = EXIT_FAILURE;
920
goto end;
921
}
922
errno = 0;
923
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
924
if(errno){
925
perror("Bad port number");
926
exitcode = EXIT_FAILURE;
927
goto end;
928
}
929
*address = '\0';
930
address = connect_to;
931
ret = start_mandos_communication(address, port, if_index, &mc);
932
if(ret < 0){
933
exitcode = EXIT_FAILURE;
934
} else {
935
exitcode = EXIT_SUCCESS;
936
}
937
goto end;
938
}
939
940
/* If the interface is down, bring it up */
941
{
942
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
943
if(sd < 0) {
944
perror("socket");
945
exitcode = EXIT_FAILURE;
946
goto end;
947
}
948
strcpy(network.ifr_name, interface); /* Spurious warning */
949
ret = ioctl(sd, SIOCGIFFLAGS, &network);
950
if(ret == -1){
951
perror("ioctl SIOCGIFFLAGS");
952
exitcode = EXIT_FAILURE;
953
goto end;
954
}
955
if((network.ifr_flags & IFF_UP) == 0){
956
network.ifr_flags |= IFF_UP;
957
ret = ioctl(sd, SIOCSIFFLAGS, &network);
958
if(ret == -1){
959
perror("ioctl SIOCSIFFLAGS");
960
exitcode = EXIT_FAILURE;
961
goto end;
962
}
963
}
964
close(sd);
659
965
}
660
966
661
967
if (not debug){
662
968
avahi_set_log_function(empty_log);
663
969
}
664
970
665
/* Initialize the psuedo-RNG */
971
/* Initialize the pseudo-RNG for Avahi */
666
972
srand((unsigned int) time(NULL));
667
668
/* Allocate main loop object */
669
if (!(simple_poll = avahi_simple_poll_new())) {
670
fprintf(stderr, "Failed to create simple poll object.\n");
671
672
goto exit;
673
}
674
675
/* Do not publish any local records */
676
avahi_server_config_init(&config);
677
config.publish_hinfo = 0;
678
config.publish_addresses = 0;
679
config.publish_workstation = 0;
680
config.publish_domain = 0;
681
682
/* Allocate a new server */
683
server = avahi_server_new(avahi_simple_poll_get(simple_poll),
684
&config, NULL, NULL, &error);
685
686
/* Free the configuration data */
687
avahi_server_config_free(&config);
688
689
/* Check if creating the server object succeeded */
690
if (!server) {
691
fprintf(stderr, "Failed to create server: %s\n",
973
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"
978
" object.\n");
979
exitcode = EXIT_FAILURE;
980
goto end;
981
}
982
983
{
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;
991
992
/* Allocate a new server */
993
mc.server = avahi_server_new(avahi_simple_poll_get
994
(mc.simple_poll), &config, NULL,
995
NULL, &error);
996
997
/* Free the Avahi configuration data */
998
avahi_server_config_free(&config);
999
}
1000
1001
/* Check if creating the Avahi server object succeeded */
1002
if (mc.server == NULL) {
1003
fprintf(stderr, "Failed to create Avahi server: %s\n",
692
1004
avahi_strerror(error));
693
returncode = EXIT_FAILURE;
694
goto exit;
1005
exitcode = EXIT_FAILURE;
1006
goto end;
695
1007
}
696
1008
697
/* Create the service browser */
698
sb = avahi_s_service_browser_new(server,
699
(AvahiIfIndex)
700
if_nametoindex(interface),
1009
/* Create the Avahi service browser */
1010
sb = avahi_s_service_browser_new(mc.server, if_index,
701
1011
AVAHI_PROTO_INET6,
702
1012
"_mandos._tcp", NULL, 0,
703
browse_callback, server);
704
if (!sb) {
1013
browse_callback, &mc);
1014
if (sb == NULL) {
705
1015
fprintf(stderr, "Failed to create service browser: %s\n",
706
avahi_strerror(avahi_server_errno(server)));
707
returncode = EXIT_FAILURE;
708
goto exit;
1016
avahi_strerror(avahi_server_errno(mc.server)));
1017
exitcode = EXIT_FAILURE;
1018
goto end;
709
1019
}
710
1020
711
1021
/* Run the main loop */
712
1022
713
1023
if (debug){
714
fprintf(stderr, "Starting avahi loop search\n");
1024
fprintf(stderr, "Starting Avahi loop search\n");
715
1025
}
716
1026
717
avahi_simple_poll_loop(simple_poll);
1027
avahi_simple_poll_loop(mc.simple_poll);
718
1028
719
exit:
1029
end:
720
1030
721
1031
if (debug){
722
1032
fprintf(stderr, "%s exiting\n", argv[0]);
723
1033
}
724
1034
725
1035
/* Cleanup things */
726
if (sb)
1036
if (sb != NULL)
727
1037
avahi_s_service_browser_free(sb);
728
1038
729
if (server)
730
avahi_server_free(server);
731
732
if (simple_poll)
733
avahi_simple_poll_free(simple_poll);
734
735
return returncode;
1039
if (mc.server != NULL)
1040
avahi_server_free(mc.server);
1041
1042
if (mc.simple_poll != NULL)
1043
avahi_simple_poll_free(mc.simple_poll);
1044
free(pubkeyfile);
1045
free(seckeyfile);
1046
1047
if (gnutls_initalized){
1048
gnutls_certificate_free_credentials(mc.cred);
1049
gnutls_global_deinit ();
1050
}
1051
1052
return exitcode;
736
1053
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0