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- Committer: Teddy Hogeborn
- Date: 2008-07-22 06:23:29 UTC
- Revision ID: teddy@fukt.bsnet.se-20080722062329-jaex5y5mslf6sqjx
* mandos-clients.conf ([DEFAULT]): New section.
* plugins.d/mandosclient.c (start_mandos_communication): Only print if
debugging.
Print server
name.
Bug fix: Loop
until suc-
cess.
* server.py (serverName): Set via option, not globally.
(Client.__init__): Removed argument "options". Require "timeout"
and "interval" arguments.
(tcp_handler.handle): Set "priority" from self.server.options.
(main): Removed "--timeout" and "--interval" options. New options
"--priority" and "--servicename". Add defaults for
"timeout" and "interval". Set "serviceName" from options.
Do not pass "options" to "Client()".
* plugins.d/mandosclient.c (start_mandos_communication): Only print if
debugging.
Print server
name.
Bug fix: Loop
until suc-
cess.
* server.py (serverName): Set via option, not globally.
(Client.__init__): Removed argument "options". Require "timeout"
and "interval" arguments.
(tcp_handler.handle): Set "priority" from self.server.options.
(main): Removed "--timeout" and "--interval" options. New options
"--priority" and "--servicename". Add defaults for
"timeout" and "interval". Set "serviceName" from options.
Do not pass "options" to "Client()".
- files added:
- ca.pem
- files removed:
- COPYING
- files renamed:
- clients.conf => mandos-clients.conf
- mandos-client.c => plugbasedclient.c
- plugins.d/password-request.c => plugins.d/mandosclient.c
- plugins.d/password-prompt.c => plugins.d/passprompt.c
- mandos => server.py
- files modified:
- Makefile
added
removed
plugins.d/mandosclient.c
8
8
* includes the following functions: "resolve_callback",
9
9
* "browse_callback", and parts of "main".
10
10
*
11
* Everything else is
12
* Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
11
* Everything else is Copyright © 2007-2008 Teddy Hogeborn and Björn
12
* 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 <mandos@fukt.bsnet.se>.
28
* Contact the authors at <https://www.fukt.bsnet.se/~belorn/> and
29
* <https://www.fukt.bsnet.se/~teddy/>.
29
30
*/
30
31
31
/* Needed by GPGME, specifically gpgme_data_seek() */
32
#define _FORTIFY_SOURCE 2
33
32
34
#define _LARGEFILE_SOURCE
33
35
#define _FILE_OFFSET_BITS 64
34
36
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_* */
37
#include <stdio.h>
38
#include <assert.h>
39
#include <stdlib.h>
40
#include <time.h>
41
#include <net/if.h> /* if_nametoindex */
42
76
43
#include <avahi-core/core.h>
77
44
#include <avahi-core/lookup.h>
78
45
#include <avahi-core/log.h>
80
47
#include <avahi-common/malloc.h>
81
48
#include <avahi-common/error.h>
82
49
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_* */
96
50
//mandos client part
51
#include <sys/types.h> /* socket(), inet_pton() */
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
53
struct in6_addr, inet_pton() */
54
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
55
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
56
57
#include <unistd.h> /* close() */
58
#include <netinet/in.h>
59
#include <stdbool.h> /* true */
60
#include <string.h> /* memset */
61
#include <arpa/inet.h> /* inet_pton() */
62
#include <iso646.h> /* not */
63
64
// gpgme
65
#include <errno.h> /* perror() */
66
#include <gpgme.h>
67
68
// getopt long
69
#include <getopt.h>
70
71
#ifndef CERT_ROOT
72
#define CERT_ROOT "/conf/conf.d/cryptkeyreq/"
73
#endif
74
#define CERTFILE CERT_ROOT "openpgp-client.txt"
75
#define KEYFILE CERT_ROOT "openpgp-client-key.txt"
97
76
#define BUFFER_SIZE 256
77
#define DH_BITS 1024
98
78
99
79
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>";
104
80
105
/* Used for passing in values through the Avahi callback functions */
106
81
typedef struct {
107
AvahiSimplePoll *simple_poll;
108
AvahiServer *server;
82
gnutls_session_t session;
109
83
gnutls_certificate_credentials_t cred;
110
unsigned int dh_bits;
111
84
gnutls_dh_params_t dh_params;
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){
85
} encrypted_session;
86
87
88
ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
89
char **new_packet, const char *homedir){
140
90
gpgme_data_t dh_crypto, dh_plain;
141
91
gpgme_ctx_t ctx;
142
92
gpgme_error_t rc;
143
93
ssize_t ret;
144
size_t plaintext_capacity = 0;
145
ssize_t plaintext_length = 0;
94
ssize_t new_packet_capacity = 0;
95
ssize_t new_packet_length = 0;
146
96
gpgme_engine_info_t engine_info;
147
97
148
98
if (debug){
149
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
99
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
150
100
}
151
101
152
102
/* Init GPGME */
153
103
gpgme_check_version(NULL);
154
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
155
if (rc != GPG_ERR_NO_ERROR){
156
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
157
gpgme_strsource(rc), gpgme_strerror(rc));
158
return -1;
159
}
104
gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
160
105
161
/* Set GPGME home directory for the OpenPGP engine only */
106
/* Set GPGME home directory */
162
107
rc = gpgme_get_engine_info (&engine_info);
163
108
if (rc != GPG_ERR_NO_ERROR){
164
109
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
174
119
engine_info = engine_info->next;
175
120
}
176
121
if(engine_info == NULL){
177
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
122
fprintf(stderr, "Could not set home dir to %s\n", homedir);
178
123
return -1;
179
124
}
180
125
181
/* Create new GPGME data buffer from memory cryptotext */
182
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
183
0);
126
/* Create new GPGME data buffer from packet buffer */
127
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
184
128
if (rc != GPG_ERR_NO_ERROR){
185
129
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
186
130
gpgme_strsource(rc), gpgme_strerror(rc));
192
136
if (rc != GPG_ERR_NO_ERROR){
193
137
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
194
138
gpgme_strsource(rc), gpgme_strerror(rc));
195
gpgme_data_release(dh_crypto);
196
139
return -1;
197
140
}
198
141
201
144
if (rc != GPG_ERR_NO_ERROR){
202
145
fprintf(stderr, "bad gpgme_new: %s: %s\n",
203
146
gpgme_strsource(rc), gpgme_strerror(rc));
204
plaintext_length = -1;
205
goto decrypt_end;
147
return -1;
206
148
}
207
149
208
/* Decrypt data from the cryptotext data buffer to the plaintext
209
data buffer */
150
/* Decrypt data from the FILE pointer to the plaintext data
151
buffer */
210
152
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
211
153
if (rc != GPG_ERR_NO_ERROR){
212
154
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
213
155
gpgme_strsource(rc), gpgme_strerror(rc));
214
plaintext_length = -1;
215
goto decrypt_end;
156
return -1;
216
157
}
217
158
218
159
if(debug){
219
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
160
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
220
161
}
221
162
222
163
if (debug){
223
164
gpgme_decrypt_result_t result;
224
165
result = gpgme_op_decrypt_result(ctx);
227
168
} else {
228
169
fprintf(stderr, "Unsupported algorithm: %s\n",
229
170
result->unsupported_algorithm);
230
fprintf(stderr, "Wrong key usage: %u\n",
171
fprintf(stderr, "Wrong key usage: %d\n",
231
172
result->wrong_key_usage);
232
173
if(result->file_name != NULL){
233
174
fprintf(stderr, "File name: %s\n", result->file_name);
248
189
}
249
190
}
250
191
192
/* Delete the GPGME FILE pointer cryptotext data buffer */
193
gpgme_data_release(dh_crypto);
194
251
195
/* Seek back to the beginning of the GPGME plaintext data buffer */
252
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
253
perror("pgpme_data_seek");
254
plaintext_length = -1;
255
goto decrypt_end;
256
}
257
258
*plaintext = NULL;
196
gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET);
197
198
*new_packet = 0;
259
199
while(true){
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;
200
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
201
*new_packet = realloc(*new_packet,
202
(unsigned int)new_packet_capacity
203
+ BUFFER_SIZE);
204
if (*new_packet == NULL){
205
perror("realloc");
206
return -1;
207
}
208
new_packet_capacity += BUFFER_SIZE;
267
209
}
268
210
269
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
211
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
270
212
BUFFER_SIZE);
271
213
/* Print the data, if any */
272
214
if (ret == 0){
273
/* EOF */
274
215
break;
275
216
}
276
217
if(ret < 0){
277
218
perror("gpgme_data_read");
278
plaintext_length = -1;
279
goto decrypt_end;
219
return -1;
280
220
}
281
plaintext_length += ret;
221
new_packet_length += ret;
282
222
}
283
223
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);
224
/* FIXME: check characters before printing to screen so to not print
225
terminal control characters */
226
/* if(debug){ */
227
/* fprintf(stderr, "decrypted password is: "); */
228
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
229
/* fprintf(stderr, "\n"); */
230
/* } */
296
231
297
232
/* Delete the GPGME plaintext data buffer */
298
233
gpgme_data_release(dh_plain);
299
return plaintext_length;
234
return new_packet_length;
300
235
}
301
236
302
237
static const char * safer_gnutls_strerror (int value) {
306
241
return ret;
307
242
}
308
243
309
/* GnuTLS log function callback */
310
static void debuggnutls(__attribute__((unused)) int level,
311
const char* string){
312
fprintf(stderr, "GnuTLS: %s", string);
244
void debuggnutls(__attribute__((unused)) int level,
245
const char* string){
246
fprintf(stderr, "%s", string);
313
247
}
314
248
315
static int init_gnutls_global(mandos_context *mc,
316
const char *pubkeyfile,
317
const char *seckeyfile){
249
int initgnutls(encrypted_session *es){
250
const char *err;
318
251
int ret;
319
252
320
253
if(debug){
321
254
fprintf(stderr, "Initializing GnuTLS\n");
322
255
}
323
256
324
ret = gnutls_global_init();
325
if (ret != GNUTLS_E_SUCCESS) {
326
fprintf (stderr, "GnuTLS global_init: %s\n",
327
safer_gnutls_strerror(ret));
257
if ((ret = gnutls_global_init ())
258
!= GNUTLS_E_SUCCESS) {
259
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
328
260
return -1;
329
261
}
330
262
331
263
if (debug){
332
/* "Use a log level over 10 to enable all debugging options."
333
* - GnuTLS manual
334
*/
335
264
gnutls_global_set_log_level(11);
336
265
gnutls_global_set_log_function(debuggnutls);
337
266
}
338
267
339
/* OpenPGP credentials */
340
gnutls_certificate_allocate_credentials(&mc->cred);
341
if (ret != GNUTLS_E_SUCCESS){
342
fprintf (stderr, "GnuTLS memory error: %s\n",
268
/* openpgp credentials */
269
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
270
!= GNUTLS_E_SUCCESS) {
271
fprintf (stderr, "memory error: %s\n",
343
272
safer_gnutls_strerror(ret));
344
gnutls_global_deinit ();
345
273
return -1;
346
274
}
347
275
348
276
if(debug){
349
277
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
350
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
351
seckeyfile);
278
" and keyfile %s as GnuTLS credentials\n", CERTFILE,
279
KEYFILE);
352
280
}
353
281
354
282
ret = gnutls_certificate_set_openpgp_key_file
355
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
283
(es->cred, CERTFILE, KEYFILE, GNUTLS_OPENPGP_FMT_BASE64);
356
284
if (ret != GNUTLS_E_SUCCESS) {
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",
285
fprintf
286
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
287
" '%s')\n",
288
ret, CERTFILE, KEYFILE);
289
fprintf(stdout, "The Error is: %s\n",
361
290
safer_gnutls_strerror(ret));
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){
291
return -1;
292
}
293
294
//GnuTLS server initialization
295
if ((ret = gnutls_dh_params_init (&es->dh_params))
296
!= GNUTLS_E_SUCCESS) {
297
fprintf (stderr, "Error in dh parameter initialization: %s\n",
298
safer_gnutls_strerror(ret));
299
return -1;
300
}
301
302
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
303
!= GNUTLS_E_SUCCESS) {
304
fprintf (stderr, "Error in prime generation: %s\n",
305
safer_gnutls_strerror(ret));
306
return -1;
307
}
308
309
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
310
311
// GnuTLS session creation
312
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
313
!= GNUTLS_E_SUCCESS){
397
314
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
398
315
safer_gnutls_strerror(ret));
399
316
}
400
317
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
}
318
if ((ret = gnutls_priority_set_direct (es->session, "NORMAL", &err))
319
!= GNUTLS_E_SUCCESS) {
320
fprintf(stderr, "Syntax error at: %s\n", err);
321
fprintf(stderr, "GnuTLS error: %s\n",
322
safer_gnutls_strerror(ret));
323
return -1;
411
324
}
412
325
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",
326
if ((ret = gnutls_credentials_set
327
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
328
!= GNUTLS_E_SUCCESS) {
329
fprintf(stderr, "Error setting a credentials set: %s\n",
417
330
safer_gnutls_strerror(ret));
418
gnutls_deinit (*session);
419
331
return -1;
420
332
}
421
333
422
334
/* ignore client certificate if any. */
423
gnutls_certificate_server_set_request (*session,
335
gnutls_certificate_server_set_request (es->session,
424
336
GNUTLS_CERT_IGNORE);
425
337
426
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
338
gnutls_dh_set_prime_bits (es->session, DH_BITS);
427
339
428
340
return 0;
429
341
}
430
342
431
/* Avahi log function callback */
432
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
433
__attribute__((unused)) const char *txt){}
343
void empty_log(__attribute__((unused)) AvahiLogLevel level,
344
__attribute__((unused)) const char *txt){}
434
345
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){
346
int start_mandos_communication(const char *ip, uint16_t port,
347
unsigned int if_index){
439
348
int ret, tcp_sd;
440
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
349
struct sockaddr_in6 to;
350
encrypted_session es;
441
351
char *buffer = NULL;
442
352
char *decrypted_buffer;
443
353
size_t buffer_length = 0;
444
354
size_t buffer_capacity = 0;
445
355
ssize_t decrypted_buffer_size;
446
size_t written;
356
size_t written = 0;
447
357
int retval = 0;
448
358
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
}
455
359
456
360
if(debug){
457
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
458
"\n", ip, port);
361
fprintf(stderr, "Setting up a tcp connection to %s\n", ip);
459
362
}
460
363
461
364
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
463
366
perror("socket");
464
367
return -1;
465
368
}
466
467
if(debug){
468
if(if_indextoname((unsigned int)if_index, interface) == NULL){
369
370
if(if_indextoname(if_index, interface) == NULL){
371
if(debug){
469
372
perror("if_indextoname");
470
return -1;
471
373
}
374
return -1;
375
}
376
377
if(debug){
472
378
fprintf(stderr, "Binding to interface %s\n", interface);
473
379
}
474
380
475
381
memset(&to,0,sizeof(to)); /* Spurious warning */
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);
382
to.sin6_family = AF_INET6;
383
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
480
384
if (ret < 0 ){
481
385
perror("inet_pton");
482
386
return -1;
483
}
387
}
484
388
if(ret == 0){
485
389
fprintf(stderr, "Bad address: %s\n", ip);
486
390
return -1;
487
391
}
488
to.in6.sin6_port = htons(port); /* Spurious warning */
392
to.sin6_port = htons(port); /* Spurious warning */
489
393
490
to.in6.sin6_scope_id = (uint32_t)if_index;
394
to.sin6_scope_id = (uint32_t)if_index;
491
395
492
396
if(debug){
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
}
397
fprintf(stderr, "Connection to: %s\n", ip);
504
398
}
505
399
506
ret = connect(tcp_sd, &to.in, sizeof(to));
400
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
507
401
if (ret < 0){
508
402
perror("connect");
509
403
return -1;
510
404
}
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
}
405
406
ret = initgnutls (&es);
407
if (ret != 0){
408
retval = -1;
409
return -1;
534
410
}
535
411
412
gnutls_transport_set_ptr (es.session,
413
(gnutls_transport_ptr_t) tcp_sd);
414
536
415
if(debug){
537
416
fprintf(stderr, "Establishing TLS session with %s\n", ip);
538
417
}
539
418
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);
419
ret = gnutls_handshake (es.session);
545
420
546
421
if (ret != GNUTLS_E_SUCCESS){
547
422
if(debug){
548
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
423
fprintf(stderr, "\n*** Handshake failed ***\n");
549
424
gnutls_perror (ret);
550
425
}
551
426
retval = -1;
552
goto mandos_end;
427
goto exit;
553
428
}
554
429
555
/* Read OpenPGP packet that contains the wanted password */
430
//Retrieve OpenPGP packet that contains the wanted password
556
431
557
432
if(debug){
558
433
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
560
435
}
561
436
562
437
while(true){
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;
438
if (buffer_length + BUFFER_SIZE > buffer_capacity){
439
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
440
if (buffer == NULL){
441
perror("realloc");
442
goto exit;
443
}
444
buffer_capacity += BUFFER_SIZE;
569
445
}
570
446
571
ret = gnutls_record_recv(session, buffer+buffer_length,
572
BUFFER_SIZE);
447
ret = gnutls_record_recv
448
(es.session, buffer+buffer_length, BUFFER_SIZE);
573
449
if (ret == 0){
574
450
break;
575
451
}
579
455
case GNUTLS_E_AGAIN:
580
456
break;
581
457
case GNUTLS_E_REHANDSHAKE:
582
do{
583
ret = gnutls_handshake (session);
584
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
458
ret = gnutls_handshake (es.session);
585
459
if (ret < 0){
586
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
460
fprintf(stderr, "\n*** Handshake failed ***\n");
587
461
gnutls_perror (ret);
588
462
retval = -1;
589
goto mandos_end;
463
goto exit;
590
464
}
591
465
break;
592
466
default:
593
467
fprintf(stderr, "Unknown error while reading data from"
594
" encrypted session with Mandos server\n");
468
" encrypted session with mandos server\n");
595
469
retval = -1;
596
gnutls_bye (session, GNUTLS_SHUT_RDWR);
597
goto mandos_end;
470
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
471
goto exit;
598
472
}
599
473
} else {
600
474
buffer_length += (size_t) ret;
601
475
}
602
476
}
603
477
604
if(debug){
605
fprintf(stderr, "Closing TLS session\n");
606
}
607
608
gnutls_bye (session, GNUTLS_SHUT_RDWR);
609
610
478
if (buffer_length > 0){
611
479
decrypted_buffer_size = pgp_packet_decrypt(buffer,
612
480
buffer_length,
613
481
&decrypted_buffer,
614
keydir);
482
CERT_ROOT);
615
483
if (decrypted_buffer_size >= 0){
616
written = 0;
617
while(written < (size_t) decrypted_buffer_size){
484
while(written < decrypted_buffer_size){
618
485
ret = (int)fwrite (decrypted_buffer + written, 1,
619
486
(size_t)decrypted_buffer_size - written,
620
487
stdout);
633
500
retval = -1;
634
501
}
635
502
}
636
637
/* Shutdown procedure */
638
639
mandos_end:
503
504
//shutdown procedure
505
506
if(debug){
507
fprintf(stderr, "Closing TLS session\n");
508
}
509
640
510
free(buffer);
511
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
512
exit:
641
513
close(tcp_sd);
642
gnutls_deinit (session);
514
gnutls_deinit (es.session);
515
gnutls_certificate_free_credentials (es.cred);
516
gnutls_global_deinit ();
643
517
return retval;
644
518
}
645
519
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;
520
static AvahiSimplePoll *simple_poll = NULL;
521
static AvahiServer *server = NULL;
522
523
static void resolve_callback(
524
AvahiSServiceResolver *r,
525
AvahiIfIndex interface,
526
AVAHI_GCC_UNUSED AvahiProtocol protocol,
527
AvahiResolverEvent event,
528
const char *name,
529
const char *type,
530
const char *domain,
531
const char *host_name,
532
const AvahiAddress *address,
533
uint16_t port,
534
AVAHI_GCC_UNUSED AvahiStringList *txt,
535
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
536
AVAHI_GCC_UNUSED void* userdata) {
537
661
538
assert(r); /* Spurious warning */
662
539
663
540
/* Called whenever a service has been resolved successfully or
666
543
switch (event) {
667
544
default:
668
545
case AVAHI_RESOLVER_FAILURE:
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)));
546
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of"
547
" type '%s' in domain '%s': %s\n", name, type, domain,
548
avahi_strerror(avahi_server_errno(server)));
672
549
break;
673
550
674
551
case AVAHI_RESOLVER_FOUND:
676
553
char ip[AVAHI_ADDRESS_STR_MAX];
677
554
avahi_address_snprint(ip, sizeof(ip), address);
678
555
if(debug){
679
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
680
PRIu16 ") on port %d\n", name, host_name, ip,
681
interface, port);
556
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
557
" port %d\n", name, host_name, ip, port);
682
558
}
683
int ret = start_mandos_communication(ip, port, interface, mc);
559
int ret = start_mandos_communication(ip, port,
560
(unsigned int) interface);
684
561
if (ret == 0){
685
avahi_simple_poll_quit(mc->simple_poll);
562
exit(EXIT_SUCCESS);
686
563
}
687
564
}
688
565
}
689
566
avahi_s_service_resolver_free(r);
690
567
}
691
568
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");
569
static void browse_callback(
570
AvahiSServiceBrowser *b,
571
AvahiIfIndex interface,
572
AvahiProtocol protocol,
573
AvahiBrowserEvent event,
574
const char *name,
575
const char *type,
576
const char *domain,
577
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
578
void* userdata) {
579
580
AvahiServer *s = userdata;
581
assert(b); /* Spurious warning */
582
583
/* Called whenever a new services becomes available on the LAN or
584
is removed from the LAN */
585
586
switch (event) {
587
default:
588
case AVAHI_BROWSER_FAILURE:
589
590
fprintf(stderr, "(Browser) %s\n",
591
avahi_strerror(avahi_server_errno(server)));
592
avahi_simple_poll_quit(simple_poll);
593
return;
594
595
case AVAHI_BROWSER_NEW:
596
/* We ignore the returned resolver object. In the callback
597
function we free it. If the server is terminated before
598
the callback function is called the server will free
599
the resolver for us. */
600
601
if (!(avahi_s_service_resolver_new(s, interface, protocol, name,
602
type, domain,
603
AVAHI_PROTO_INET6, 0,
604
resolve_callback, s)))
605
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
606
avahi_strerror(avahi_server_errno(s)));
607
break;
608
609
case AVAHI_BROWSER_REMOVE:
610
break;
611
612
case AVAHI_BROWSER_ALL_FOR_NOW:
613
case AVAHI_BROWSER_CACHE_EXHAUSTED:
614
break;
738
615
}
739
break;
740
}
741
}
742
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);
749
if (tmp == NULL){
750
return NULL;
751
}
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';
760
return tmp;
761
}
762
763
764
int main(int argc, char *argv[]){
616
}
617
618
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
619
AvahiServerConfig config;
765
620
AvahiSServiceBrowser *sb = NULL;
766
621
int error;
767
622
int ret;
768
int exitcode = EXIT_SUCCESS;
623
int returncode = EXIT_SUCCESS;
769
624
const char *interface = "eth0";
770
struct ifreq network;
771
int sd;
772
uid_t uid;
773
gid_t gid;
774
char *connect_to = NULL;
775
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
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);
940
}
941
942
if(connect_to != NULL){
943
/* Connect directly, do not use Zeroconf */
944
/* (Mainly meant for debugging) */
945
char *address = strrchr(connect_to, ':');
946
if(address == NULL){
947
fprintf(stderr, "No colon in address\n");
948
exitcode = EXIT_FAILURE;
949
goto end;
950
}
951
errno = 0;
952
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
953
if(errno){
954
perror("Bad port number");
955
exitcode = EXIT_FAILURE;
956
goto end;
957
}
958
*address = '\0';
959
address = connect_to;
960
ret = start_mandos_communication(address, port, if_index, &mc);
961
if(ret < 0){
962
exitcode = EXIT_FAILURE;
963
} else {
964
exitcode = EXIT_SUCCESS;
965
}
966
goto end;
625
626
while (true){
627
static struct option long_options[] = {
628
{"debug", no_argument, (int *)&debug, 1},
629
{"interface", required_argument, 0, 'i'},
630
{0, 0, 0, 0} };
631
632
int option_index = 0;
633
ret = getopt_long (argc, argv, "i:", long_options,
634
&option_index);
635
636
if (ret == -1){
637
break;
638
}
639
640
switch(ret){
641
case 0:
642
break;
643
case 'i':
644
interface = optarg;
645
break;
646
default:
647
exit(EXIT_FAILURE);
648
}
967
649
}
968
650
969
651
if (not debug){
970
652
avahi_set_log_function(empty_log);
971
653
}
972
654
973
/* Initialize the pseudo-RNG for Avahi */
655
/* Initialize the psuedo-RNG */
974
656
srand((unsigned int) time(NULL));
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",
657
658
/* Allocate main loop object */
659
if (!(simple_poll = avahi_simple_poll_new())) {
660
fprintf(stderr, "Failed to create simple poll object.\n");
661
662
goto exit;
663
}
664
665
/* Do not publish any local records */
666
avahi_server_config_init(&config);
667
config.publish_hinfo = 0;
668
config.publish_addresses = 0;
669
config.publish_workstation = 0;
670
config.publish_domain = 0;
671
672
/* Allocate a new server */
673
server = avahi_server_new(avahi_simple_poll_get(simple_poll),
674
&config, NULL, NULL, &error);
675
676
/* Free the configuration data */
677
avahi_server_config_free(&config);
678
679
/* Check if creating the server object succeeded */
680
if (!server) {
681
fprintf(stderr, "Failed to create server: %s\n",
1006
682
avahi_strerror(error));
1007
exitcode = EXIT_FAILURE;
1008
goto end;
683
returncode = EXIT_FAILURE;
684
goto exit;
1009
685
}
1010
686
1011
/* Create the Avahi service browser */
1012
sb = avahi_s_service_browser_new(mc.server, if_index,
687
/* Create the service browser */
688
sb = avahi_s_service_browser_new(server,
689
(AvahiIfIndex)
690
if_nametoindex(interface),
1013
691
AVAHI_PROTO_INET6,
1014
692
"_mandos._tcp", NULL, 0,
1015
browse_callback, &mc);
1016
if (sb == NULL) {
693
browse_callback, server);
694
if (!sb) {
1017
695
fprintf(stderr, "Failed to create service browser: %s\n",
1018
avahi_strerror(avahi_server_errno(mc.server)));
1019
exitcode = EXIT_FAILURE;
1020
goto end;
696
avahi_strerror(avahi_server_errno(server)));
697
returncode = EXIT_FAILURE;
698
goto exit;
1021
699
}
1022
700
1023
701
/* Run the main loop */
1024
702
1025
703
if (debug){
1026
fprintf(stderr, "Starting Avahi loop search\n");
704
fprintf(stderr, "Starting avahi loop search\n");
1027
705
}
1028
706
1029
avahi_simple_poll_loop(mc.simple_poll);
707
avahi_simple_poll_loop(simple_poll);
1030
708
1031
end:
709
exit:
1032
710
1033
711
if (debug){
1034
712
fprintf(stderr, "%s exiting\n", argv[0]);
1035
713
}
1036
714
1037
715
/* Cleanup things */
1038
if (sb != NULL)
716
if (sb)
1039
717
avahi_s_service_browser_free(sb);
1040
718
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
}
1053
1054
return exitcode;
719
if (server)
720
avahi_server_free(server);
721
722
if (simple_poll)
723
avahi_simple_poll_free(simple_poll);
724
725
return returncode;
1055
726
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0