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- Committer: Björn Påhlsson
- Date: 2008-08-15 20:17:32 UTC
- mto: (24.1.154 mandos) (237.4.3 mandos-release)
- mto: This revision was merged to the branch mainline in revision 77.
- Revision ID: belorn@braxen-20080815201732-b7uux3yqs05b3fy9
Added configuration files support for mandos-client
Removed plus argument support for mandos-client
Removed plus argument support for mandos-client
- files added:
- COPYING
- 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>
36
#include <assert.h>
37
#include <stdlib.h>
38
#include <time.h>
39
#include <net/if.h> /* if_nametoindex */
40
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 <sys/types.h> /* socket(), inet_pton(), sockaddr,
48
sockaddr_in6, PF_INET6,
49
SOCK_STREAM, INET6_ADDRSTRLEN,
50
uid_t, gid_t */
51
#include <inttypes.h> /* PRIu16 */
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
53
struct in6_addr, inet_pton(),
54
connect() */
55
#include <assert.h> /* assert() */
56
#include <errno.h> /* perror(), errno */
57
#include <time.h> /* time() */
58
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
59
SIOCSIFFLAGS, if_indextoname(),
60
if_nametoindex(), IF_NAMESIZE */
61
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
62
getuid(), getgid(), setuid(),
63
setgid() */
64
#include <netinet/in.h>
65
#include <arpa/inet.h> /* inet_pton(), htons */
66
#include <iso646.h> /* not, and */
67
#include <argp.h> /* struct argp_option, error_t, struct
68
argp_state, struct argp,
69
argp_parse(), ARGP_KEY_ARG,
70
ARGP_KEY_END, ARGP_ERR_UNKNOWN */
71
72
/* Avahi */
73
/* All Avahi types, constants and functions
74
Avahi*, avahi_*,
75
AVAHI_* */
41
76
#include <avahi-core/core.h>
42
77
#include <avahi-core/lookup.h>
43
78
#include <avahi-core/log.h>
45
80
#include <avahi-common/malloc.h>
46
81
#include <avahi-common/error.h>
47
82
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>
83
/* GnuTLS */
84
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and functions
85
gnutls_*
86
init_gnutls_session(),
87
GNUTLS_* */
88
#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),
89
GNUTLS_OPENPGP_FMT_BASE64 */
90
91
/* GPGME */
92
#include <gpgme.h> /* All GPGME types, constants and functions
93
gpgme_*
94
GPGME_PROTOCOL_OpenPGP,
95
GPG_ERR_NO_* */
68
96
69
97
#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
98
76
99
bool debug = false;
100
static const char *keydir = "/conf/conf.d/mandos";
101
static const char mandos_protocol_version[] = "1";
102
const char *argp_program_version = "password-request 1.0";
103
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
77
104
105
/* Used for passing in values through the Avahi callback functions */
78
106
typedef struct {
79
gnutls_session_t session;
107
AvahiSimplePoll *simple_poll;
108
AvahiServer *server;
80
109
gnutls_certificate_credentials_t cred;
110
unsigned int dh_bits;
81
111
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){
112
const char *priority;
113
} mandos_context;
114
115
/*
116
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
117
* "buffer_capacity" is how much is currently allocated,
118
* "buffer_length" is how much is already used.
119
*/
120
size_t adjustbuffer(char **buffer, size_t buffer_length,
121
size_t buffer_capacity){
122
if (buffer_length + BUFFER_SIZE > buffer_capacity){
123
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
124
if (buffer == NULL){
125
return 0;
126
}
127
buffer_capacity += BUFFER_SIZE;
128
}
129
return buffer_capacity;
130
}
131
132
/*
133
* Decrypt OpenPGP data using keyrings in HOMEDIR.
134
* Returns -1 on error
135
*/
136
static ssize_t pgp_packet_decrypt (const char *cryptotext,
137
size_t crypto_size,
138
char **plaintext,
139
const char *homedir){
87
140
gpgme_data_t dh_crypto, dh_plain;
88
141
gpgme_ctx_t ctx;
89
142
gpgme_error_t rc;
90
143
ssize_t ret;
91
ssize_t new_packet_capacity = 0;
92
ssize_t new_packet_length = 0;
144
size_t plaintext_capacity = 0;
145
ssize_t plaintext_length = 0;
93
146
gpgme_engine_info_t engine_info;
94
147
95
148
if (debug){
96
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
149
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
97
150
}
98
151
99
152
/* Init GPGME */
105
158
return -1;
106
159
}
107
160
108
/* Set GPGME home directory */
161
/* Set GPGME home directory for the OpenPGP engine only */
109
162
rc = gpgme_get_engine_info (&engine_info);
110
163
if (rc != GPG_ERR_NO_ERROR){
111
164
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
121
174
engine_info = engine_info->next;
122
175
}
123
176
if(engine_info == NULL){
124
fprintf(stderr, "Could not set home dir to %s\n", homedir);
177
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
125
178
return -1;
126
179
}
127
180
128
/* Create new GPGME data buffer from packet buffer */
129
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
181
/* Create new GPGME data buffer from memory cryptotext */
182
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
183
0);
130
184
if (rc != GPG_ERR_NO_ERROR){
131
185
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
132
186
gpgme_strsource(rc), gpgme_strerror(rc));
138
192
if (rc != GPG_ERR_NO_ERROR){
139
193
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
140
194
gpgme_strsource(rc), gpgme_strerror(rc));
195
gpgme_data_release(dh_crypto);
141
196
return -1;
142
197
}
143
198
146
201
if (rc != GPG_ERR_NO_ERROR){
147
202
fprintf(stderr, "bad gpgme_new: %s: %s\n",
148
203
gpgme_strsource(rc), gpgme_strerror(rc));
149
return -1;
204
plaintext_length = -1;
205
goto decrypt_end;
150
206
}
151
207
152
/* Decrypt data from the FILE pointer to the plaintext data
153
buffer */
208
/* Decrypt data from the cryptotext data buffer to the plaintext
209
data buffer */
154
210
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
155
211
if (rc != GPG_ERR_NO_ERROR){
156
212
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
157
213
gpgme_strsource(rc), gpgme_strerror(rc));
158
return -1;
214
plaintext_length = -1;
215
goto decrypt_end;
159
216
}
160
217
161
218
if(debug){
162
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
219
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
163
220
}
164
221
165
222
if (debug){
166
223
gpgme_decrypt_result_t result;
167
224
result = gpgme_op_decrypt_result(ctx);
170
227
} else {
171
228
fprintf(stderr, "Unsupported algorithm: %s\n",
172
229
result->unsupported_algorithm);
173
fprintf(stderr, "Wrong key usage: %d\n",
230
fprintf(stderr, "Wrong key usage: %u\n",
174
231
result->wrong_key_usage);
175
232
if(result->file_name != NULL){
176
233
fprintf(stderr, "File name: %s\n", result->file_name);
191
248
}
192
249
}
193
250
194
/* Delete the GPGME FILE pointer cryptotext data buffer */
195
gpgme_data_release(dh_crypto);
196
197
251
/* Seek back to the beginning of the GPGME plaintext data buffer */
198
252
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
199
253
perror("pgpme_data_seek");
254
plaintext_length = -1;
255
goto decrypt_end;
200
256
}
201
257
202
*new_packet = 0;
258
*plaintext = NULL;
203
259
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;
260
plaintext_capacity = adjustbuffer(plaintext,
261
(size_t)plaintext_length,
262
plaintext_capacity);
263
if (plaintext_capacity == 0){
264
perror("adjustbuffer");
265
plaintext_length = -1;
266
goto decrypt_end;
213
267
}
214
268
215
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
269
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
216
270
BUFFER_SIZE);
217
271
/* Print the data, if any */
218
272
if (ret == 0){
273
/* EOF */
219
274
break;
220
275
}
221
276
if(ret < 0){
222
277
perror("gpgme_data_read");
223
return -1;
278
plaintext_length = -1;
279
goto decrypt_end;
224
280
}
225
new_packet_length += ret;
281
plaintext_length += ret;
226
282
}
227
283
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
/* } */
284
if(debug){
285
fprintf(stderr, "Decrypted password is: ");
286
for(ssize_t i = 0; i < plaintext_length; i++){
287
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
288
}
289
fprintf(stderr, "\n");
290
}
291
292
decrypt_end:
293
294
/* Delete the GPGME cryptotext data buffer */
295
gpgme_data_release(dh_crypto);
235
296
236
297
/* Delete the GPGME plaintext data buffer */
237
298
gpgme_data_release(dh_plain);
238
return new_packet_length;
299
return plaintext_length;
239
300
}
240
301
241
302
static const char * safer_gnutls_strerror (int value) {
245
306
return ret;
246
307
}
247
308
248
void debuggnutls(__attribute__((unused)) int level,
249
const char* string){
250
fprintf(stderr, "%s", string);
309
/* GnuTLS log function callback */
310
static void debuggnutls(__attribute__((unused)) int level,
311
const char* string){
312
fprintf(stderr, "GnuTLS: %s", string);
251
313
}
252
314
253
int initgnutls(encrypted_session *es){
254
const char *err;
315
static int init_gnutls_global(mandos_context *mc,
316
const char *pubkeyfile,
317
const char *seckeyfile){
255
318
int ret;
256
319
257
320
if(debug){
258
321
fprintf(stderr, "Initializing GnuTLS\n");
259
322
}
260
261
if ((ret = gnutls_global_init ())
262
!= GNUTLS_E_SUCCESS) {
263
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
323
324
ret = gnutls_global_init();
325
if (ret != GNUTLS_E_SUCCESS) {
326
fprintf (stderr, "GnuTLS global_init: %s\n",
327
safer_gnutls_strerror(ret));
264
328
return -1;
265
329
}
266
330
267
331
if (debug){
332
/* "Use a log level over 10 to enable all debugging options."
333
* - GnuTLS manual
334
*/
268
335
gnutls_global_set_log_level(11);
269
336
gnutls_global_set_log_function(debuggnutls);
270
337
}
271
338
272
/* openpgp credentials */
273
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
274
!= GNUTLS_E_SUCCESS) {
275
fprintf (stderr, "memory error: %s\n",
339
/* OpenPGP credentials */
340
gnutls_certificate_allocate_credentials(&mc->cred);
341
if (ret != GNUTLS_E_SUCCESS){
342
fprintf (stderr, "GnuTLS memory error: %s\n",
276
343
safer_gnutls_strerror(ret));
344
gnutls_global_deinit ();
277
345
return -1;
278
346
}
279
347
280
348
if(debug){
281
349
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
282
" and keyfile %s as GnuTLS credentials\n", certfile,
283
certkey);
350
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
351
seckeyfile);
284
352
}
285
353
286
354
ret = gnutls_certificate_set_openpgp_key_file
287
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
355
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
288
356
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",
357
fprintf(stderr,
358
"Error[%d] while reading the OpenPGP key pair ('%s',"
359
" '%s')\n", ret, pubkeyfile, seckeyfile);
360
fprintf(stdout, "The GnuTLS error is: %s\n",
294
361
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){
362
goto globalfail;
363
}
364
365
/* GnuTLS server initialization */
366
ret = gnutls_dh_params_init(&mc->dh_params);
367
if (ret != GNUTLS_E_SUCCESS) {
368
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
369
" %s\n", safer_gnutls_strerror(ret));
370
goto globalfail;
371
}
372
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
373
if (ret != GNUTLS_E_SUCCESS) {
374
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
375
safer_gnutls_strerror(ret));
376
goto globalfail;
377
}
378
379
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
380
381
return 0;
382
383
globalfail:
384
385
gnutls_certificate_free_credentials(mc->cred);
386
gnutls_global_deinit();
387
return -1;
388
389
}
390
391
static int init_gnutls_session(mandos_context *mc,
392
gnutls_session_t *session){
393
int ret;
394
/* GnuTLS session creation */
395
ret = gnutls_init(session, GNUTLS_SERVER);
396
if (ret != GNUTLS_E_SUCCESS){
318
397
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
319
398
safer_gnutls_strerror(ret));
320
399
}
321
400
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;
401
{
402
const char *err;
403
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
404
if (ret != GNUTLS_E_SUCCESS) {
405
fprintf(stderr, "Syntax error at: %s\n", err);
406
fprintf(stderr, "GnuTLS error: %s\n",
407
safer_gnutls_strerror(ret));
408
gnutls_deinit (*session);
409
return -1;
410
}
328
411
}
329
412
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",
413
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
414
mc->cred);
415
if (ret != GNUTLS_E_SUCCESS) {
416
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
334
417
safer_gnutls_strerror(ret));
418
gnutls_deinit (*session);
335
419
return -1;
336
420
}
337
421
338
422
/* ignore client certificate if any. */
339
gnutls_certificate_server_set_request (es->session,
423
gnutls_certificate_server_set_request (*session,
340
424
GNUTLS_CERT_IGNORE);
341
425
342
gnutls_dh_set_prime_bits (es->session, DH_BITS);
426
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
343
427
344
428
return 0;
345
429
}
346
430
347
void empty_log(__attribute__((unused)) AvahiLogLevel level,
348
__attribute__((unused)) const char *txt){}
431
/* Avahi log function callback */
432
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
433
__attribute__((unused)) const char *txt){}
349
434
350
int start_mandos_communication(const char *ip, uint16_t port,
351
AvahiIfIndex if_index){
435
/* Called when a Mandos server is found */
436
static int start_mandos_communication(const char *ip, uint16_t port,
437
AvahiIfIndex if_index,
438
mandos_context *mc){
352
439
int ret, tcp_sd;
353
struct sockaddr_in6 to;
354
encrypted_session es;
440
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
355
441
char *buffer = NULL;
356
442
char *decrypted_buffer;
357
443
size_t buffer_length = 0;
358
444
size_t buffer_capacity = 0;
359
445
ssize_t decrypted_buffer_size;
360
size_t written = 0;
446
size_t written;
361
447
int retval = 0;
362
448
char interface[IF_NAMESIZE];
449
gnutls_session_t session;
450
451
ret = init_gnutls_session (mc, &session);
452
if (ret != 0){
453
return -1;
454
}
363
455
364
456
if(debug){
365
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
366
ip, port);
457
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
458
"\n", ip, port);
367
459
}
368
460
369
461
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
371
463
perror("socket");
372
464
return -1;
373
465
}
374
375
if(if_indextoname((unsigned int)if_index, interface) == NULL){
376
if(debug){
466
467
if(debug){
468
if(if_indextoname((unsigned int)if_index, interface) == NULL){
377
469
perror("if_indextoname");
470
return -1;
378
471
}
379
return -1;
380
}
381
382
if(debug){
383
472
fprintf(stderr, "Binding to interface %s\n", interface);
384
473
}
385
474
386
475
memset(&to,0,sizeof(to)); /* Spurious warning */
387
to.sin6_family = AF_INET6;
388
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
476
to.in6.sin6_family = AF_INET6;
477
/* It would be nice to have a way to detect if we were passed an
478
IPv4 address here. Now we assume an IPv6 address. */
479
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
389
480
if (ret < 0 ){
390
481
perror("inet_pton");
391
482
return -1;
392
}
483
}
393
484
if(ret == 0){
394
485
fprintf(stderr, "Bad address: %s\n", ip);
395
486
return -1;
396
487
}
397
to.sin6_port = htons(port); /* Spurious warning */
488
to.in6.sin6_port = htons(port); /* Spurious warning */
398
489
399
to.sin6_scope_id = (uint32_t)if_index;
490
to.in6.sin6_scope_id = (uint32_t)if_index;
400
491
401
492
if(debug){
402
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
/* } */
493
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
494
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
}
411
504
}
412
505
413
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
506
ret = connect(tcp_sd, &to.in, sizeof(to));
414
507
if (ret < 0){
415
508
perror("connect");
416
509
return -1;
417
510
}
418
419
ret = initgnutls (&es);
420
if (ret != 0){
421
retval = -1;
422
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
}
423
534
}
424
425
gnutls_transport_set_ptr (es.session,
426
(gnutls_transport_ptr_t) tcp_sd);
427
535
428
536
if(debug){
429
537
fprintf(stderr, "Establishing TLS session with %s\n", ip);
430
538
}
431
539
432
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);
433
545
434
546
if (ret != GNUTLS_E_SUCCESS){
435
547
if(debug){
436
fprintf(stderr, "\n*** Handshake failed ***\n");
548
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
437
549
gnutls_perror (ret);
438
550
}
439
551
retval = -1;
440
goto exit;
552
goto mandos_end;
441
553
}
442
554
443
//Retrieve OpenPGP packet that contains the wanted password
555
/* Read OpenPGP packet that contains the wanted password */
444
556
445
557
if(debug){
446
558
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
448
560
}
449
561
450
562
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;
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;
458
569
}
459
570
460
ret = gnutls_record_recv
461
(es.session, buffer+buffer_length, BUFFER_SIZE);
571
ret = gnutls_record_recv(session, buffer+buffer_length,
572
BUFFER_SIZE);
462
573
if (ret == 0){
463
574
break;
464
575
}
468
579
case GNUTLS_E_AGAIN:
469
580
break;
470
581
case GNUTLS_E_REHANDSHAKE:
471
ret = gnutls_handshake (es.session);
582
do{
583
ret = gnutls_handshake (session);
584
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
472
585
if (ret < 0){
473
fprintf(stderr, "\n*** Handshake failed ***\n");
586
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
474
587
gnutls_perror (ret);
475
588
retval = -1;
476
goto exit;
589
goto mandos_end;
477
590
}
478
591
break;
479
592
default:
480
593
fprintf(stderr, "Unknown error while reading data from"
481
" encrypted session with mandos server\n");
594
" encrypted session with Mandos server\n");
482
595
retval = -1;
483
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
484
goto exit;
596
gnutls_bye (session, GNUTLS_SHUT_RDWR);
597
goto mandos_end;
485
598
}
486
599
} else {
487
600
buffer_length += (size_t) ret;
488
601
}
489
602
}
490
603
604
if(debug){
605
fprintf(stderr, "Closing TLS session\n");
606
}
607
608
gnutls_bye (session, GNUTLS_SHUT_RDWR);
609
491
610
if (buffer_length > 0){
492
611
decrypted_buffer_size = pgp_packet_decrypt(buffer,
493
612
buffer_length,
494
613
&decrypted_buffer,
495
certdir);
614
keydir);
496
615
if (decrypted_buffer_size >= 0){
616
written = 0;
497
617
while(written < (size_t) decrypted_buffer_size){
498
618
ret = (int)fwrite (decrypted_buffer + written, 1,
499
619
(size_t)decrypted_buffer_size - written,
513
633
retval = -1;
514
634
}
515
635
}
516
517
//shutdown procedure
518
519
if(debug){
520
fprintf(stderr, "Closing TLS session\n");
521
}
522
636
637
/* Shutdown procedure */
638
639
mandos_end:
523
640
free(buffer);
524
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
525
exit:
526
641
close(tcp_sd);
527
gnutls_deinit (es.session);
528
gnutls_certificate_free_credentials (es.cred);
529
gnutls_global_deinit ();
642
gnutls_deinit (session);
530
643
return retval;
531
644
}
532
645
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
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;
551
661
assert(r); /* Spurious warning */
552
662
553
663
/* Called whenever a service has been resolved successfully or
556
666
switch (event) {
557
667
default:
558
668
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)));
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)));
562
672
break;
563
673
564
674
case AVAHI_RESOLVER_FOUND:
566
676
char ip[AVAHI_ADDRESS_STR_MAX];
567
677
avahi_address_snprint(ip, sizeof(ip), address);
568
678
if(debug){
569
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
570
" port %d\n", name, host_name, ip, port);
679
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
680
PRIu16 ") on port %d\n", name, host_name, ip,
681
interface, port);
571
682
}
572
int ret = start_mandos_communication(ip, port, interface);
683
int ret = start_mandos_communication(ip, port, interface, mc);
573
684
if (ret == 0){
574
exit(EXIT_SUCCESS);
685
avahi_simple_poll_quit(mc->simple_poll);
575
686
}
576
687
}
577
688
}
578
689
avahi_s_service_resolver_free(r);
579
690
}
580
691
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;
692
static void browse_callback( AvahiSServiceBrowser *b,
693
AvahiIfIndex interface,
694
AvahiProtocol protocol,
695
AvahiBrowserEvent event,
696
const char *name,
697
const char *type,
698
const char *domain,
699
AVAHI_GCC_UNUSED AvahiLookupResultFlags
700
flags,
701
void* userdata) {
702
mandos_context *mc = userdata;
703
assert(b); /* Spurious warning */
704
705
/* Called whenever a new services becomes available on the LAN or
706
is removed from the LAN */
707
708
switch (event) {
709
default:
710
case AVAHI_BROWSER_FAILURE:
711
712
fprintf(stderr, "(Avahi browser) %s\n",
713
avahi_strerror(avahi_server_errno(mc->server)));
714
avahi_simple_poll_quit(mc->simple_poll);
715
return;
716
717
case AVAHI_BROWSER_NEW:
718
/* We ignore the returned Avahi resolver object. In the callback
719
function we free it. If the Avahi server is terminated before
720
the callback function is called the Avahi server will free the
721
resolver for us. */
722
723
if (!(avahi_s_service_resolver_new(mc->server, interface,
724
protocol, name, type, domain,
725
AVAHI_PROTO_INET6, 0,
726
resolve_callback, mc)))
727
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
728
name, avahi_strerror(avahi_server_errno(mc->server)));
729
break;
730
731
case AVAHI_BROWSER_REMOVE:
732
break;
733
734
case AVAHI_BROWSER_ALL_FOR_NOW:
735
case AVAHI_BROWSER_CACHE_EXHAUSTED:
736
if(debug){
737
fprintf(stderr, "No Mandos server found, still searching...\n");
627
738
}
739
break;
740
}
628
741
}
629
742
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);
743
/* Combines file name and path and returns the malloced new
744
string. some sane checks could/should be added */
745
static const char *combinepath(const char *first, const char *second){
746
size_t f_len = strlen(first);
747
size_t s_len = strlen(second);
748
char *tmp = malloc(f_len + s_len + 2);
634
749
if (tmp == NULL){
635
perror("malloc");
636
750
return NULL;
637
751
}
638
strcpy(tmp, first);
639
if (first[0] != '\0' and first[strlen(first) - 1] != '/'){
640
strcat(tmp, "/");
641
}
642
strcat(tmp, second);
752
if(f_len > 0){
753
memcpy(tmp, first, f_len); /* Spurious warning */
754
}
755
tmp[f_len] = '/';
756
if(s_len > 0){
757
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
758
}
759
tmp[f_len + 1 + s_len] = '\0';
643
760
return tmp;
644
761
}
645
762
646
763
647
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
648
AvahiServerConfig config;
764
int main(int argc, char *argv[]){
649
765
AvahiSServiceBrowser *sb = NULL;
650
766
int error;
651
767
int ret;
652
int returncode = EXIT_SUCCESS;
653
const char *interface = NULL;
768
int exitcode = EXIT_SUCCESS;
769
const char *interface = "eth0";
770
struct ifreq network;
771
int sd;
772
uid_t uid;
773
gid_t gid;
774
char *connect_to = NULL;
654
775
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
}
776
const char *pubkeyfile = "pubkey.txt";
777
const char *seckeyfile = "seckey.txt";
778
mandos_context mc = { .simple_poll = NULL, .server = NULL,
779
.dh_bits = 1024, .priority = "SECURE256"};
780
bool gnutls_initalized = false;
781
782
{
783
struct argp_option options[] = {
784
{ .name = "debug", .key = 128,
785
.doc = "Debug mode", .group = 3 },
786
{ .name = "connect", .key = 'c',
787
.arg = "IP",
788
.doc = "Connect directly to a sepcified mandos server",
789
.group = 1 },
790
{ .name = "interface", .key = 'i',
791
.arg = "INTERFACE",
792
.doc = "Interface that Avahi will conntect through",
793
.group = 1 },
794
{ .name = "keydir", .key = 'd',
795
.arg = "KEYDIR",
796
.doc = "Directory where the openpgp keyring is",
797
.group = 1 },
798
{ .name = "seckey", .key = 's',
799
.arg = "SECKEY",
800
.doc = "Secret openpgp key for gnutls authentication",
801
.group = 1 },
802
{ .name = "pubkey", .key = 'p',
803
.arg = "PUBKEY",
804
.doc = "Public openpgp key for gnutls authentication",
805
.group = 2 },
806
{ .name = "dh-bits", .key = 129,
807
.arg = "BITS",
808
.doc = "dh-bits to use in gnutls communication",
809
.group = 2 },
810
{ .name = "priority", .key = 130,
811
.arg = "PRIORITY",
812
.doc = "GNUTLS priority", .group = 1 },
813
{ .name = NULL }
814
};
815
816
817
error_t parse_opt (int key, char *arg,
818
struct argp_state *state) {
819
/* Get the INPUT argument from `argp_parse', which we know is
820
a pointer to our plugin list pointer. */
821
switch (key) {
822
case 128:
823
debug = true;
824
break;
825
case 'c':
826
connect_to = arg;
827
break;
828
case 'i':
829
interface = arg;
830
break;
831
case 'd':
832
keydir = arg;
833
break;
834
case 's':
835
seckeyfile = arg;
836
break;
837
case 'p':
838
pubkeyfile = arg;
839
break;
840
case 129:
841
errno = 0;
842
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
843
if (errno){
844
perror("strtol");
845
exit(EXIT_FAILURE);
846
}
847
break;
848
case 130:
849
mc.priority = arg;
850
break;
851
case ARGP_KEY_ARG:
852
argp_usage (state);
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, "Unknown 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
exitcode = EXIT_FAILURE;
884
goto end;
885
}
886
887
ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);
888
if (ret == -1){
889
fprintf(stderr, "init_gnutls_global failed\n");
890
exitcode = EXIT_FAILURE;
891
goto end;
892
} else {
893
gnutls_initalized = true;
894
}
895
896
/* If the interface is down, bring it up */
897
{
898
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
899
if(sd < 0) {
900
perror("socket");
901
exitcode = EXIT_FAILURE;
902
goto end;
903
}
904
strcpy(network.ifr_name, interface); /* Spurious warning */
905
ret = ioctl(sd, SIOCGIFFLAGS, &network);
906
if(ret == -1){
907
perror("ioctl SIOCGIFFLAGS");
908
exitcode = EXIT_FAILURE;
909
goto end;
910
}
911
if((network.ifr_flags & IFF_UP) == 0){
912
network.ifr_flags |= IFF_UP;
913
ret = ioctl(sd, SIOCSIFFLAGS, &network);
914
if(ret == -1){
915
perror("ioctl SIOCSIFFLAGS");
916
exitcode = EXIT_FAILURE;
917
goto end;
918
}
919
}
920
close(sd);
921
}
922
923
uid = getuid();
924
gid = getgid();
925
926
ret = setuid(uid);
927
if (ret == -1){
928
perror("setuid");
929
}
930
931
setgid(gid);
932
if (ret == -1){
933
perror("setgid");
934
}
935
936
if_index = (AvahiIfIndex) if_nametoindex(interface);
937
if(if_index == 0){
938
fprintf(stderr, "No such interface: \"%s\"\n", interface);
939
exit(EXIT_FAILURE);
709
940
}
710
941
711
942
if(connect_to != NULL){
714
945
char *address = strrchr(connect_to, ':');
715
946
if(address == NULL){
716
947
fprintf(stderr, "No colon in address\n");
717
exit(EXIT_FAILURE);
948
exitcode = EXIT_FAILURE;
949
goto end;
718
950
}
719
951
errno = 0;
720
952
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
721
953
if(errno){
722
954
perror("Bad port number");
723
exit(EXIT_FAILURE);
955
exitcode = EXIT_FAILURE;
956
goto end;
724
957
}
725
958
*address = '\0';
726
959
address = connect_to;
727
ret = start_mandos_communication(address, port, if_index);
960
ret = start_mandos_communication(address, port, if_index, &mc);
728
961
if(ret < 0){
729
exit(EXIT_FAILURE);
962
exitcode = EXIT_FAILURE;
730
963
} else {
731
exit(EXIT_SUCCESS);
964
exitcode = EXIT_SUCCESS;
732
965
}
733
}
734
735
certkey = combinepath(certdir, certkey);
736
if (certkey == NULL){
737
goto exit;
966
goto end;
738
967
}
739
968
740
969
if (not debug){
741
970
avahi_set_log_function(empty_log);
742
971
}
743
972
744
/* Initialize the psuedo-RNG */
973
/* Initialize the pseudo-RNG for Avahi */
745
974
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",
975
976
/* Allocate main Avahi loop object */
977
mc.simple_poll = avahi_simple_poll_new();
978
if (mc.simple_poll == NULL) {
979
fprintf(stderr, "Avahi: Failed to create simple poll"
980
" object.\n");
981
exitcode = EXIT_FAILURE;
982
goto end;
983
}
984
985
{
986
AvahiServerConfig config;
987
/* Do not publish any local Zeroconf records */
988
avahi_server_config_init(&config);
989
config.publish_hinfo = 0;
990
config.publish_addresses = 0;
991
config.publish_workstation = 0;
992
config.publish_domain = 0;
993
994
/* Allocate a new server */
995
mc.server = avahi_server_new(avahi_simple_poll_get
996
(mc.simple_poll), &config, NULL,
997
NULL, &error);
998
999
/* Free the Avahi configuration data */
1000
avahi_server_config_free(&config);
1001
}
1002
1003
/* Check if creating the Avahi server object succeeded */
1004
if (mc.server == NULL) {
1005
fprintf(stderr, "Failed to create Avahi server: %s\n",
771
1006
avahi_strerror(error));
772
returncode = EXIT_FAILURE;
773
goto exit;
1007
exitcode = EXIT_FAILURE;
1008
goto end;
774
1009
}
775
1010
776
/* Create the service browser */
777
sb = avahi_s_service_browser_new(server, if_index,
1011
/* Create the Avahi service browser */
1012
sb = avahi_s_service_browser_new(mc.server, if_index,
778
1013
AVAHI_PROTO_INET6,
779
1014
"_mandos._tcp", NULL, 0,
780
browse_callback, server);
781
if (!sb) {
1015
browse_callback, &mc);
1016
if (sb == NULL) {
782
1017
fprintf(stderr, "Failed to create service browser: %s\n",
783
avahi_strerror(avahi_server_errno(server)));
784
returncode = EXIT_FAILURE;
785
goto exit;
1018
avahi_strerror(avahi_server_errno(mc.server)));
1019
exitcode = EXIT_FAILURE;
1020
goto end;
786
1021
}
787
1022
788
1023
/* Run the main loop */
789
1024
790
1025
if (debug){
791
fprintf(stderr, "Starting avahi loop search\n");
1026
fprintf(stderr, "Starting Avahi loop search\n");
792
1027
}
793
1028
794
avahi_simple_poll_loop(simple_poll);
1029
avahi_simple_poll_loop(mc.simple_poll);
795
1030
796
exit:
1031
end:
797
1032
798
1033
if (debug){
799
1034
fprintf(stderr, "%s exiting\n", argv[0]);
800
1035
}
801
1036
802
1037
/* Cleanup things */
803
if (sb)
1038
if (sb != NULL)
804
1039
avahi_s_service_browser_free(sb);
805
1040
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);
1041
if (mc.server != NULL)
1042
avahi_server_free(mc.server);
1043
1044
if (mc.simple_poll != NULL)
1045
avahi_simple_poll_free(mc.simple_poll);
1046
free(pubkeyfile);
1047
free(seckeyfile);
1048
1049
if (gnutls_initalized){
1050
gnutls_certificate_free_credentials(mc.cred);
1051
gnutls_global_deinit ();
1052
}
813
1053
814
return returncode;
1054
return exitcode;
815
1055
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0