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- Committer: Teddy Hogeborn
- Date: 2008-08-04 20:43:31 UTC
- mfrom: (24.1.17 mandos)
- Revision ID: teddy@fukt.bsnet.se-20080804204331-zgu42g8ii997h1l2
* ca.pem: Removed.
* cert.pem: - '' -
* client-cert.pem: - '' -
* client-key.pem: - '' -
* crl.pem: - '' -
* key.pem: - '' -
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
to be a union. All users changed.
* server.py: Changed log severity for many log messages.
(Client.__init__): Take all config file settins as a dict instead of
as keyword arguments.
* cert.pem: - '' -
* client-cert.pem: - '' -
* client-key.pem: - '' -
* crl.pem: - '' -
* key.pem: - '' -
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
to be a union. All users changed.
* server.py: Changed log severity for many log messages.
(Client.__init__): Take all config file settins as a dict instead of
as keyword arguments.
- files added:
- server.conf
- files removed:
- ca.pem
- files renamed:
- mandos-clients.conf => clients.conf
- files modified:
- Makefile
added
removed
plugins.d/mandosclient.c
1
/* $Id$ */
2
3
/* PLEASE NOTE *
4
* This file demonstrates how to use Avahi's core API, this is
5
* the embeddable mDNS stack for embedded applications.
1
/* -*- coding: utf-8 -*- */
2
/*
3
* Mandos client - get and decrypt data from a Mandos server
6
4
*
7
* End user applications should *not* use this API and should use
8
* the D-Bus or C APIs, please see
9
* client-browse-services.c and glib-integration.c
10
*
11
* I repeat, you probably do *not* want to use this example.
5
* This program is partly derived from an example program for an Avahi
6
* service browser, downloaded from
7
* <http://avahi.org/browser/examples/core-browse-services.c>. This
8
* includes the following functions: "resolve_callback",
9
* "browse_callback", and parts of "main".
10
*
11
* Everything else is
12
* Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
13
*
14
* This program is free software: you can redistribute it and/or
15
* modify it under the terms of the GNU General Public License as
16
* published by the Free Software Foundation, either version 3 of the
17
* License, or (at your option) any later version.
18
*
19
* This program is distributed in the hope that it will be useful, but
20
* WITHOUT ANY WARRANTY; without even the implied warranty of
21
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22
* General Public License for more details.
23
*
24
* You should have received a copy of the GNU General Public License
25
* along with this program. If not, see
26
* <http://www.gnu.org/licenses/>.
27
*
28
* Contact the authors at <mandos@fukt.bsnet.se>.
12
29
*/
13
30
14
/***
15
This file is part of avahi.
16
17
avahi is free software; you can redistribute it and/or modify it
18
under the terms of the GNU Lesser General Public License as
19
published by the Free Software Foundation; either version 2.1 of the
20
License, or (at your option) any later version.
21
22
avahi is distributed in the hope that it will be useful, but WITHOUT
23
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
24
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
25
Public License for more details.
26
27
You should have received a copy of the GNU Lesser General Public
28
License along with avahi; if not, write to the Free Software
29
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
30
USA.
31
***/
32
31
/* Needed by GPGME, specifically gpgme_data_seek() */
33
32
#define _LARGEFILE_SOURCE
34
33
#define _FILE_OFFSET_BITS 64
35
34
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */
36
36
37
#include <stdio.h>
37
38
#include <assert.h>
38
39
#include <stdlib.h>
39
40
#include <time.h>
40
41
#include <net/if.h> /* if_nametoindex */
42
#include <sys/ioctl.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
43
SIOCSIFFLAGS */
44
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
45
SIOCSIFFLAGS */
41
46
42
47
#include <avahi-core/core.h>
43
48
#include <avahi-core/lookup.h>
46
51
#include <avahi-common/malloc.h>
47
52
#include <avahi-common/error.h>
48
53
49
//mandos client part
50
#include <sys/types.h> /* socket(), setsockopt(), inet_pton() */
51
#include <sys/socket.h> /* socket(), setsockopt(), struct sockaddr_in6, struct in6_addr, inet_pton() */
52
#include <gnutls/gnutls.h> /* ALL GNUTLS STUFF */
53
#include <gnutls/openpgp.h> /* gnutls with openpgp stuff */
54
/* Mandos client part */
55
#include <sys/types.h> /* socket(), inet_pton() */
56
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
57
struct in6_addr, inet_pton() */
58
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
59
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
54
60
55
61
#include <unistd.h> /* close() */
56
62
#include <netinet/in.h>
58
64
#include <string.h> /* memset */
59
65
#include <arpa/inet.h> /* inet_pton() */
60
66
#include <iso646.h> /* not */
61
62
// gpgme
67
#include <net/if.h> /* IF_NAMESIZE */
68
#include <argp.h> /* struct argp_option,
69
struct argp_state, struct argp,
70
argp_parse() */
71
/* GPGME */
63
72
#include <errno.h> /* perror() */
64
73
#include <gpgme.h>
65
74
66
67
#ifndef CERT_ROOT
68
#define CERT_ROOT "/conf/conf.d/cryptkeyreq/"
69
#endif
70
#define CERTFILE CERT_ROOT "openpgp-client.txt"
71
#define KEYFILE CERT_ROOT "openpgp-client-key.txt"
72
75
#define BUFFER_SIZE 256
73
#define DH_BITS 1024
74
76
77
bool debug = false;
78
static const char *keydir = "/conf/conf.d/mandos";
79
static const char mandos_protocol_version[] = "1";
80
const char *argp_program_version = "mandosclient 0.9";
81
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
82
83
/* Used for passing in values through the Avahi callback functions */
75
84
typedef struct {
76
gnutls_session_t session;
85
AvahiSimplePoll *simple_poll;
86
AvahiServer *server;
77
87
gnutls_certificate_credentials_t cred;
88
unsigned int dh_bits;
78
89
gnutls_dh_params_t dh_params;
79
} encrypted_session;
80
81
82
ssize_t gpg_packet_decrypt (char *packet, size_t packet_size, char **new_packet, char *homedir){
90
const char *priority;
91
} mandos_context;
92
93
/*
94
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
95
* "buffer_capacity" is how much is currently allocated,
96
* "buffer_length" is how much is already used.
97
*/
98
size_t adjustbuffer(char **buffer, size_t buffer_length,
99
size_t buffer_capacity){
100
if (buffer_length + BUFFER_SIZE > buffer_capacity){
101
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
102
if (buffer == NULL){
103
return 0;
104
}
105
buffer_capacity += BUFFER_SIZE;
106
}
107
return buffer_capacity;
108
}
109
110
/*
111
* Decrypt OpenPGP data using keyrings in HOMEDIR.
112
* Returns -1 on error
113
*/
114
static ssize_t pgp_packet_decrypt (const char *cryptotext,
115
size_t crypto_size,
116
char **plaintext,
117
const char *homedir){
83
118
gpgme_data_t dh_crypto, dh_plain;
84
119
gpgme_ctx_t ctx;
85
120
gpgme_error_t rc;
86
121
ssize_t ret;
87
size_t new_packet_capacity = 0;
88
size_t new_packet_length = 0;
122
size_t plaintext_capacity = 0;
123
ssize_t plaintext_length = 0;
89
124
gpgme_engine_info_t engine_info;
90
125
126
if (debug){
127
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
128
}
129
91
130
/* Init GPGME */
92
131
gpgme_check_version(NULL);
93
gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
132
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
133
if (rc != GPG_ERR_NO_ERROR){
134
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
135
gpgme_strsource(rc), gpgme_strerror(rc));
136
return -1;
137
}
94
138
95
/* Set GPGME home directory */
139
/* Set GPGME home directory for the OpenPGP engine only */
96
140
rc = gpgme_get_engine_info (&engine_info);
97
141
if (rc != GPG_ERR_NO_ERROR){
98
142
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
108
152
engine_info = engine_info->next;
109
153
}
110
154
if(engine_info == NULL){
111
fprintf(stderr, "Could not set home dir to %s\n", homedir);
155
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
112
156
return -1;
113
157
}
114
158
115
/* Create new GPGME data buffer from packet buffer */
116
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
159
/* Create new GPGME data buffer from memory cryptotext */
160
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
161
0);
117
162
if (rc != GPG_ERR_NO_ERROR){
118
163
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
119
164
gpgme_strsource(rc), gpgme_strerror(rc));
125
170
if (rc != GPG_ERR_NO_ERROR){
126
171
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
127
172
gpgme_strsource(rc), gpgme_strerror(rc));
173
gpgme_data_release(dh_crypto);
128
174
return -1;
129
175
}
130
176
133
179
if (rc != GPG_ERR_NO_ERROR){
134
180
fprintf(stderr, "bad gpgme_new: %s: %s\n",
135
181
gpgme_strsource(rc), gpgme_strerror(rc));
136
return -1;
182
plaintext_length = -1;
183
goto decrypt_end;
137
184
}
138
185
139
/* Decrypt data from the FILE pointer to the plaintext data buffer */
186
/* Decrypt data from the cryptotext data buffer to the plaintext
187
data buffer */
140
188
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
141
189
if (rc != GPG_ERR_NO_ERROR){
142
190
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
143
191
gpgme_strsource(rc), gpgme_strerror(rc));
144
return -1;
145
}
146
147
/* gpgme_decrypt_result_t result; */
148
/* result = gpgme_op_decrypt_result(ctx); */
149
/* fprintf(stderr, "Unsupported algorithm: %s\n", result->unsupported_algorithm); */
150
/* fprintf(stderr, "Wrong key usage: %d\n", result->wrong_key_usage); */
151
/* if(result->file_name != NULL){ */
152
/* fprintf(stderr, "File name: %s\n", result->file_name); */
153
/* } */
154
/* gpgme_recipient_t recipient; */
155
/* recipient = result->recipients; */
156
/* if(recipient){ */
157
/* while(recipient != NULL){ */
158
/* fprintf(stderr, "Public key algorithm: %s\n", */
159
/* gpgme_pubkey_algo_name(recipient->pubkey_algo)); */
160
/* fprintf(stderr, "Key ID: %s\n", recipient->keyid); */
161
/* fprintf(stderr, "Secret key available: %s\n", */
162
/* recipient->status == GPG_ERR_NO_SECKEY ? "No" : "Yes"); */
163
/* recipient = recipient->next; */
164
/* } */
165
/* } */
166
167
/* Delete the GPGME FILE pointer cryptotext data buffer */
168
gpgme_data_release(dh_crypto);
192
plaintext_length = -1;
193
goto decrypt_end;
194
}
195
196
if(debug){
197
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
198
}
199
200
if (debug){
201
gpgme_decrypt_result_t result;
202
result = gpgme_op_decrypt_result(ctx);
203
if (result == NULL){
204
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
205
} else {
206
fprintf(stderr, "Unsupported algorithm: %s\n",
207
result->unsupported_algorithm);
208
fprintf(stderr, "Wrong key usage: %d\n",
209
result->wrong_key_usage);
210
if(result->file_name != NULL){
211
fprintf(stderr, "File name: %s\n", result->file_name);
212
}
213
gpgme_recipient_t recipient;
214
recipient = result->recipients;
215
if(recipient){
216
while(recipient != NULL){
217
fprintf(stderr, "Public key algorithm: %s\n",
218
gpgme_pubkey_algo_name(recipient->pubkey_algo));
219
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
220
fprintf(stderr, "Secret key available: %s\n",
221
recipient->status == GPG_ERR_NO_SECKEY
222
? "No" : "Yes");
223
recipient = recipient->next;
224
}
225
}
226
}
227
}
169
228
170
229
/* Seek back to the beginning of the GPGME plaintext data buffer */
171
gpgme_data_seek(dh_plain, 0, SEEK_SET);
172
173
*new_packet = 0;
230
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
231
perror("pgpme_data_seek");
232
plaintext_length = -1;
233
goto decrypt_end;
234
}
235
236
*plaintext = NULL;
174
237
while(true){
175
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
176
*new_packet = realloc(*new_packet, new_packet_capacity + BUFFER_SIZE);
177
if (*new_packet == NULL){
178
perror("realloc");
179
return -1;
180
}
181
new_packet_capacity += BUFFER_SIZE;
238
plaintext_capacity = adjustbuffer(plaintext,
239
(size_t)plaintext_length,
240
plaintext_capacity);
241
if (plaintext_capacity == 0){
242
perror("adjustbuffer");
243
plaintext_length = -1;
244
goto decrypt_end;
182
245
}
183
246
184
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length, BUFFER_SIZE);
247
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
248
BUFFER_SIZE);
185
249
/* Print the data, if any */
186
250
if (ret == 0){
187
/* If password is empty, then a incorrect error will be printed */
251
/* EOF */
188
252
break;
189
253
}
190
254
if(ret < 0){
191
255
perror("gpgme_data_read");
192
return -1;
256
plaintext_length = -1;
257
goto decrypt_end;
193
258
}
194
new_packet_length += ret;
259
plaintext_length += ret;
195
260
}
196
261
197
/* Delete the GPGME plaintext data buffer */
262
if(debug){
263
fprintf(stderr, "Decrypted password is: ");
264
for(ssize_t i = 0; i < plaintext_length; i++){
265
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
266
}
267
fprintf(stderr, "\n");
268
}
269
270
decrypt_end:
271
272
/* Delete the GPGME cryptotext data buffer */
273
gpgme_data_release(dh_crypto);
274
275
/* Delete the GPGME plaintext data buffer */
198
276
gpgme_data_release(dh_plain);
199
return new_packet_length;
277
return plaintext_length;
200
278
}
201
279
202
280
static const char * safer_gnutls_strerror (int value) {
206
284
return ret;
207
285
}
208
286
209
void debuggnutls(int level, const char* string){
210
fprintf(stderr, "%s", string);
287
/* GnuTLS log function callback */
288
static void debuggnutls(__attribute__((unused)) int level,
289
const char* string){
290
fprintf(stderr, "GnuTLS: %s", string);
211
291
}
212
292
213
int initgnutls(encrypted_session *es){
214
const char *err;
293
static int init_gnutls_global(mandos_context *mc,
294
const char *pubkeyfile,
295
const char *seckeyfile){
215
296
int ret;
216
297
298
if(debug){
299
fprintf(stderr, "Initializing GnuTLS\n");
300
}
301
217
302
if ((ret = gnutls_global_init ())
218
303
!= GNUTLS_E_SUCCESS) {
219
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
304
fprintf (stderr, "GnuTLS global_init: %s\n",
305
safer_gnutls_strerror(ret));
220
306
return -1;
221
307
}
222
223
/* Uncomment to enable full debuggin on the gnutls library */
224
/* gnutls_global_set_log_level(11); */
225
/* gnutls_global_set_log_function(debuggnutls); */
226
227
228
/* openpgp credentials */
229
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
308
309
if (debug){
310
/* "Use a log level over 10 to enable all debugging options."
311
* - GnuTLS manual
312
*/
313
gnutls_global_set_log_level(11);
314
gnutls_global_set_log_function(debuggnutls);
315
}
316
317
/* OpenPGP credentials */
318
if ((ret = gnutls_certificate_allocate_credentials (&mc->cred))
230
319
!= GNUTLS_E_SUCCESS) {
231
fprintf (stderr, "memory error: %s\n", safer_gnutls_strerror(ret));
320
fprintf (stderr, "GnuTLS memory error: %s\n",
321
safer_gnutls_strerror(ret));
232
322
return -1;
233
323
}
234
324
325
if(debug){
326
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
327
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
328
seckeyfile);
329
}
330
235
331
ret = gnutls_certificate_set_openpgp_key_file
236
(es->cred, CERTFILE, KEYFILE, GNUTLS_OPENPGP_FMT_BASE64);
237
if (ret != GNUTLS_E_SUCCESS) {
238
fprintf
239
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s', '%s')\n",
240
ret, CERTFILE, KEYFILE);
241
fprintf(stdout, "The Error is: %s\n",
242
safer_gnutls_strerror(ret));
243
return -1;
244
}
245
246
//Gnutls server initialization
247
if ((ret = gnutls_dh_params_init (&es->dh_params))
248
!= GNUTLS_E_SUCCESS) {
249
fprintf (stderr, "Error in dh parameter initialization: %s\n",
250
safer_gnutls_strerror(ret));
251
return -1;
252
}
253
254
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
255
!= GNUTLS_E_SUCCESS) {
256
fprintf (stderr, "Error in prime generation: %s\n",
257
safer_gnutls_strerror(ret));
258
return -1;
259
}
260
261
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
262
263
// Gnutls session creation
264
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
265
!= GNUTLS_E_SUCCESS){
266
fprintf(stderr, "Error in gnutls session initialization: %s\n",
267
safer_gnutls_strerror(ret));
268
}
269
270
if ((ret = gnutls_priority_set_direct (es->session, "NORMAL", &err))
271
!= GNUTLS_E_SUCCESS) {
272
fprintf(stderr, "Syntax error at: %s\n", err);
273
fprintf(stderr, "Gnutls error: %s\n",
274
safer_gnutls_strerror(ret));
275
return -1;
276
}
277
278
if ((ret = gnutls_credentials_set
279
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
280
!= GNUTLS_E_SUCCESS) {
281
fprintf(stderr, "Error setting a credentials set: %s\n",
282
safer_gnutls_strerror(ret));
283
return -1;
284
}
285
332
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
333
if (ret != GNUTLS_E_SUCCESS) {
334
fprintf(stderr,
335
"Error[%d] while reading the OpenPGP key pair ('%s',"
336
" '%s')\n", ret, pubkeyfile, seckeyfile);
337
fprintf(stdout, "The GnuTLS error is: %s\n",
338
safer_gnutls_strerror(ret));
339
return -1;
340
}
341
342
/* GnuTLS server initialization */
343
ret = gnutls_dh_params_init(&mc->dh_params);
344
if (ret != GNUTLS_E_SUCCESS) {
345
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
346
" %s\n", safer_gnutls_strerror(ret));
347
return -1;
348
}
349
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
350
if (ret != GNUTLS_E_SUCCESS) {
351
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
352
safer_gnutls_strerror(ret));
353
return -1;
354
}
355
356
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
357
358
return 0;
359
}
360
361
static int init_gnutls_session(mandos_context *mc,
362
gnutls_session_t *session){
363
int ret;
364
/* GnuTLS session creation */
365
ret = gnutls_init(session, GNUTLS_SERVER);
366
if (ret != GNUTLS_E_SUCCESS){
367
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
368
safer_gnutls_strerror(ret));
369
}
370
371
{
372
const char *err;
373
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
374
if (ret != GNUTLS_E_SUCCESS) {
375
fprintf(stderr, "Syntax error at: %s\n", err);
376
fprintf(stderr, "GnuTLS error: %s\n",
377
safer_gnutls_strerror(ret));
378
return -1;
379
}
380
}
381
382
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
383
mc->cred);
384
if (ret != GNUTLS_E_SUCCESS) {
385
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
386
safer_gnutls_strerror(ret));
387
return -1;
388
}
389
286
390
/* ignore client certificate if any. */
287
gnutls_certificate_server_set_request (es->session, GNUTLS_CERT_IGNORE);
391
gnutls_certificate_server_set_request (*session,
392
GNUTLS_CERT_IGNORE);
288
393
289
gnutls_dh_set_prime_bits (es->session, DH_BITS);
394
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
290
395
291
396
return 0;
292
397
}
293
398
294
void empty_log(AvahiLogLevel level, const char *txt){}
399
/* Avahi log function callback */
400
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
401
__attribute__((unused)) const char *txt){}
295
402
296
int start_mandos_communcation(char *ip, uint16_t port){
403
/* Called when a Mandos server is found */
404
static int start_mandos_communication(const char *ip, uint16_t port,
405
AvahiIfIndex if_index,
406
mandos_context *mc){
297
407
int ret, tcp_sd;
298
struct sockaddr_in6 to;
299
struct in6_addr ip_addr;
300
encrypted_session es;
408
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
301
409
char *buffer = NULL;
302
410
char *decrypted_buffer;
303
411
size_t buffer_length = 0;
304
412
size_t buffer_capacity = 0;
305
413
ssize_t decrypted_buffer_size;
414
size_t written;
306
415
int retval = 0;
307
416
char interface[IF_NAMESIZE];
417
gnutls_session_t session;
418
419
ret = init_gnutls_session (mc, &session);
420
if (ret != 0){
421
return -1;
422
}
423
424
if(debug){
425
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
426
ip, port);
427
}
308
428
309
429
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
310
430
if(tcp_sd < 0) {
311
431
perror("socket");
312
432
return -1;
313
433
}
314
315
ret = setsockopt(tcp_sd, SOL_SOCKET, SO_BINDTODEVICE, "eth0", 5);
316
if(tcp_sd < 0) {
317
perror("setsockopt bindtodevice");
318
return -1;
434
435
if(debug){
436
if(if_indextoname((unsigned int)if_index, interface) == NULL){
437
perror("if_indextoname");
438
return -1;
439
}
440
fprintf(stderr, "Binding to interface %s\n", interface);
319
441
}
320
442
321
memset(&to,0,sizeof(to));
322
to.sin6_family = AF_INET6;
323
ret = inet_pton(AF_INET6, ip, &ip_addr);
443
memset(&to,0,sizeof(to)); /* Spurious warning */
444
to.in6.sin6_family = AF_INET6;
445
/* It would be nice to have a way to detect if we were passed an
446
IPv4 address here. Now we assume an IPv6 address. */
447
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
324
448
if (ret < 0 ){
325
449
perror("inet_pton");
326
450
return -1;
327
}
451
}
328
452
if(ret == 0){
329
453
fprintf(stderr, "Bad address: %s\n", ip);
330
454
return -1;
331
455
}
332
to.sin6_port = htons(port);
333
to.sin6_scope_id = if_nametoindex("eth0");
334
335
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
456
to.in6.sin6_port = htons(port); /* Spurious warning */
457
458
to.in6.sin6_scope_id = (uint32_t)if_index;
459
460
if(debug){
461
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
462
char addrstr[INET6_ADDRSTRLEN] = "";
463
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
464
sizeof(addrstr)) == NULL){
465
perror("inet_ntop");
466
} else {
467
if(strcmp(addrstr, ip) != 0){
468
fprintf(stderr, "Canonical address form: %s\n", addrstr);
469
}
470
}
471
}
472
473
ret = connect(tcp_sd, &to.in, sizeof(to));
336
474
if (ret < 0){
337
475
perror("connect");
338
476
return -1;
339
477
}
340
341
ret = initgnutls (&es);
342
if (ret != 0){
343
retval = -1;
344
return -1;
345
}
346
347
348
gnutls_transport_set_ptr (es.session, (gnutls_transport_ptr_t) tcp_sd);
349
478
350
ret = gnutls_handshake (es.session);
479
const char *out = mandos_protocol_version;
480
written = 0;
481
while (true){
482
size_t out_size = strlen(out);
483
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
484
out_size - written));
485
if (ret == -1){
486
perror("write");
487
retval = -1;
488
goto mandos_end;
489
}
490
written += (size_t)ret;
491
if(written < out_size){
492
continue;
493
} else {
494
if (out == mandos_protocol_version){
495
written = 0;
496
out = "\r\n";
497
} else {
498
break;
499
}
500
}
501
}
502
503
if(debug){
504
fprintf(stderr, "Establishing TLS session with %s\n", ip);
505
}
506
507
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
508
509
ret = gnutls_handshake (session);
351
510
352
511
if (ret != GNUTLS_E_SUCCESS){
353
fprintf(stderr, "\n*** Handshake failed ***\n");
354
gnutls_perror (ret);
512
if(debug){
513
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
514
gnutls_perror (ret);
515
}
355
516
retval = -1;
356
goto exit;
517
goto mandos_end;
518
}
519
520
/* Read OpenPGP packet that contains the wanted password */
521
522
if(debug){
523
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
524
ip);
357
525
}
358
526
359
//retrive password
360
527
while(true){
361
if (buffer_length + BUFFER_SIZE > buffer_capacity){
362
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
363
if (buffer == NULL){
364
perror("realloc");
365
goto exit;
366
}
367
buffer_capacity += BUFFER_SIZE;
528
buffer_capacity = adjustbuffer(&buffer, buffer_length,
529
buffer_capacity);
530
if (buffer_capacity == 0){
531
perror("adjustbuffer");
532
retval = -1;
533
goto mandos_end;
368
534
}
369
535
370
ret = gnutls_record_recv
371
(es.session, buffer+buffer_length, BUFFER_SIZE);
536
ret = gnutls_record_recv(session, buffer+buffer_length,
537
BUFFER_SIZE);
372
538
if (ret == 0){
373
539
break;
374
540
}
378
544
case GNUTLS_E_AGAIN:
379
545
break;
380
546
case GNUTLS_E_REHANDSHAKE:
381
ret = gnutls_handshake (es.session);
547
ret = gnutls_handshake (session);
382
548
if (ret < 0){
383
fprintf(stderr, "\n*** Handshake failed ***\n");
549
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
384
550
gnutls_perror (ret);
385
551
retval = -1;
386
goto exit;
552
goto mandos_end;
387
553
}
388
554
break;
389
555
default:
390
fprintf(stderr, "Unknown error while reading data from encrypted session with mandos server\n");
556
fprintf(stderr, "Unknown error while reading data from"
557
" encrypted session with Mandos server\n");
391
558
retval = -1;
392
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
393
goto exit;
559
gnutls_bye (session, GNUTLS_SHUT_RDWR);
560
goto mandos_end;
394
561
}
395
562
} else {
396
buffer_length += ret;
563
buffer_length += (size_t) ret;
397
564
}
398
565
}
399
566
567
if(debug){
568
fprintf(stderr, "Closing TLS session\n");
569
}
570
571
gnutls_bye (session, GNUTLS_SHUT_RDWR);
572
400
573
if (buffer_length > 0){
401
if ((decrypted_buffer_size = gpg_packet_decrypt(buffer, buffer_length, &decrypted_buffer, CERT_ROOT)) == 0){
402
retval = -1;
403
} else {
404
fwrite (decrypted_buffer, 1, decrypted_buffer_size, stdout);
574
decrypted_buffer_size = pgp_packet_decrypt(buffer,
575
buffer_length,
576
&decrypted_buffer,
577
keydir);
578
if (decrypted_buffer_size >= 0){
579
written = 0;
580
while(written < (size_t) decrypted_buffer_size){
581
ret = (int)fwrite (decrypted_buffer + written, 1,
582
(size_t)decrypted_buffer_size - written,
583
stdout);
584
if(ret == 0 and ferror(stdout)){
585
if(debug){
586
fprintf(stderr, "Error writing encrypted data: %s\n",
587
strerror(errno));
588
}
589
retval = -1;
590
break;
591
}
592
written += (size_t)ret;
593
}
405
594
free(decrypted_buffer);
595
} else {
596
retval = -1;
406
597
}
407
598
}
408
599
600
/* Shutdown procedure */
601
602
mandos_end:
409
603
free(buffer);
410
411
//shutdown procedure
412
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
413
exit:
414
604
close(tcp_sd);
415
gnutls_deinit (es.session);
416
gnutls_certificate_free_credentials (es.cred);
605
gnutls_deinit (session);
606
gnutls_certificate_free_credentials (mc->cred);
417
607
gnutls_global_deinit ();
418
608
return retval;
419
609
}
420
610
421
static AvahiSimplePoll *simple_poll = NULL;
422
static AvahiServer *server = NULL;
423
424
static void resolve_callback(
425
AvahiSServiceResolver *r,
426
AVAHI_GCC_UNUSED AvahiIfIndex interface,
427
AVAHI_GCC_UNUSED AvahiProtocol protocol,
428
AvahiResolverEvent event,
429
const char *name,
430
const char *type,
431
const char *domain,
432
const char *host_name,
433
const AvahiAddress *address,
434
uint16_t port,
435
AvahiStringList *txt,
436
AvahiLookupResultFlags flags,
437
AVAHI_GCC_UNUSED void* userdata) {
438
439
assert(r);
440
441
/* Called whenever a service has been resolved successfully or timed out */
442
443
switch (event) {
444
case AVAHI_RESOLVER_FAILURE:
445
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of type '%s' in domain '%s': %s\n", name, type, domain, avahi_strerror(avahi_server_errno(server)));
446
break;
447
448
case AVAHI_RESOLVER_FOUND: {
449
char ip[AVAHI_ADDRESS_STR_MAX];
450
avahi_address_snprint(ip, sizeof(ip), address);
451
int ret = start_mandos_communcation(ip, port);
452
if (ret == 0){
453
exit(EXIT_SUCCESS);
454
} else {
455
exit(EXIT_FAILURE);
456
}
457
}
458
}
459
avahi_s_service_resolver_free(r);
460
}
461
462
static void browse_callback(
463
AvahiSServiceBrowser *b,
464
AvahiIfIndex interface,
465
AvahiProtocol protocol,
466
AvahiBrowserEvent event,
467
const char *name,
468
const char *type,
469
const char *domain,
470
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
471
void* userdata) {
472
473
AvahiServer *s = userdata;
474
assert(b);
475
476
/* Called whenever a new services becomes available on the LAN or is removed from the LAN */
477
478
switch (event) {
479
480
case AVAHI_BROWSER_FAILURE:
481
482
fprintf(stderr, "(Browser) %s\n", avahi_strerror(avahi_server_errno(server)));
483
avahi_simple_poll_quit(simple_poll);
484
return;
485
486
case AVAHI_BROWSER_NEW:
487
/* We ignore the returned resolver object. In the callback
488
function we free it. If the server is terminated before
489
the callback function is called the server will free
490
the resolver for us. */
491
492
if (!(avahi_s_service_resolver_new(s, interface, protocol, name, type, domain, AVAHI_PROTO_INET6, 0, resolve_callback, s)))
493
fprintf(stderr, "Failed to resolve service '%s': %s\n", name, avahi_strerror(avahi_server_errno(s)));
494
495
break;
496
497
case AVAHI_BROWSER_REMOVE:
498
break;
499
500
case AVAHI_BROWSER_ALL_FOR_NOW:
501
case AVAHI_BROWSER_CACHE_EXHAUSTED:
502
break;
503
}
504
}
505
506
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
507
AvahiServerConfig config;
611
static void resolve_callback(AvahiSServiceResolver *r,
612
AvahiIfIndex interface,
613
AVAHI_GCC_UNUSED AvahiProtocol protocol,
614
AvahiResolverEvent event,
615
const char *name,
616
const char *type,
617
const char *domain,
618
const char *host_name,
619
const AvahiAddress *address,
620
uint16_t port,
621
AVAHI_GCC_UNUSED AvahiStringList *txt,
622
AVAHI_GCC_UNUSED AvahiLookupResultFlags
623
flags,
624
void* userdata) {
625
mandos_context *mc = userdata;
626
assert(r); /* Spurious warning */
627
628
/* Called whenever a service has been resolved successfully or
629
timed out */
630
631
switch (event) {
632
default:
633
case AVAHI_RESOLVER_FAILURE:
634
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
635
" of type '%s' in domain '%s': %s\n", name, type, domain,
636
avahi_strerror(avahi_server_errno(mc->server)));
637
break;
638
639
case AVAHI_RESOLVER_FOUND:
640
{
641
char ip[AVAHI_ADDRESS_STR_MAX];
642
avahi_address_snprint(ip, sizeof(ip), address);
643
if(debug){
644
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %d) on"
645
" port %d\n", name, host_name, ip, interface, port);
646
}
647
int ret = start_mandos_communication(ip, port, interface, mc);
648
if (ret == 0){
649
exit(EXIT_SUCCESS);
650
}
651
}
652
}
653
avahi_s_service_resolver_free(r);
654
}
655
656
static void browse_callback( AvahiSServiceBrowser *b,
657
AvahiIfIndex interface,
658
AvahiProtocol protocol,
659
AvahiBrowserEvent event,
660
const char *name,
661
const char *type,
662
const char *domain,
663
AVAHI_GCC_UNUSED AvahiLookupResultFlags
664
flags,
665
void* userdata) {
666
mandos_context *mc = userdata;
667
assert(b); /* Spurious warning */
668
669
/* Called whenever a new services becomes available on the LAN or
670
is removed from the LAN */
671
672
switch (event) {
673
default:
674
case AVAHI_BROWSER_FAILURE:
675
676
fprintf(stderr, "(Avahi browser) %s\n",
677
avahi_strerror(avahi_server_errno(mc->server)));
678
avahi_simple_poll_quit(mc->simple_poll);
679
return;
680
681
case AVAHI_BROWSER_NEW:
682
/* We ignore the returned Avahi resolver object. In the callback
683
function we free it. If the Avahi server is terminated before
684
the callback function is called the Avahi server will free the
685
resolver for us. */
686
687
if (!(avahi_s_service_resolver_new(mc->server, interface,
688
protocol, name, type, domain,
689
AVAHI_PROTO_INET6, 0,
690
resolve_callback, mc)))
691
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
692
name, avahi_strerror(avahi_server_errno(mc->server)));
693
break;
694
695
case AVAHI_BROWSER_REMOVE:
696
break;
697
698
case AVAHI_BROWSER_ALL_FOR_NOW:
699
case AVAHI_BROWSER_CACHE_EXHAUSTED:
700
if(debug){
701
fprintf(stderr, "No Mandos server found, still searching...\n");
702
}
703
break;
704
}
705
}
706
707
/* Combines file name and path and returns the malloced new
708
string. some sane checks could/should be added */
709
static const char *combinepath(const char *first, const char *second){
710
size_t f_len = strlen(first);
711
size_t s_len = strlen(second);
712
char *tmp = malloc(f_len + s_len + 2);
713
if (tmp == NULL){
714
return NULL;
715
}
716
if(f_len > 0){
717
memcpy(tmp, first, f_len); /* Spurious warning */
718
}
719
tmp[f_len] = '/';
720
if(s_len > 0){
721
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
722
}
723
tmp[f_len + 1 + s_len] = '\0';
724
return tmp;
725
}
726
727
728
int main(int argc, char *argv[]){
508
729
AvahiSServiceBrowser *sb = NULL;
509
730
int error;
510
int ret = 1;
511
512
avahi_set_log_function(empty_log);
513
514
/* Initialize the psuedo-RNG */
515
srand(time(NULL));
516
517
/* Allocate main loop object */
518
if (!(simple_poll = avahi_simple_poll_new())) {
519
fprintf(stderr, "Failed to create simple poll object.\n");
520
goto fail;
521
}
522
523
/* Do not publish any local records */
524
avahi_server_config_init(&config);
525
config.publish_hinfo = 0;
526
config.publish_addresses = 0;
527
config.publish_workstation = 0;
528
config.publish_domain = 0;
529
530
/* /\* Set a unicast DNS server for wide area DNS-SD *\/ */
531
/* avahi_address_parse("193.11.177.11", AVAHI_PROTO_UNSPEC, &config.wide_area_servers[0]); */
532
/* config.n_wide_area_servers = 1; */
533
/* config.enable_wide_area = 1; */
534
535
/* Allocate a new server */
536
server = avahi_server_new(avahi_simple_poll_get(simple_poll), &config, NULL, NULL, &error);
537
538
/* Free the configuration data */
539
avahi_server_config_free(&config);
540
541
/* Check wether creating the server object succeeded */
542
if (!server) {
543
fprintf(stderr, "Failed to create server: %s\n", avahi_strerror(error));
544
goto fail;
545
}
546
547
/* Create the service browser */
548
if (!(sb = avahi_s_service_browser_new(server, if_nametoindex("eth0"), AVAHI_PROTO_INET6, "_mandos._tcp", NULL, 0, browse_callback, server))) {
549
fprintf(stderr, "Failed to create service browser: %s\n", avahi_strerror(avahi_server_errno(server)));
550
goto fail;
731
int ret;
732
int exitcode = EXIT_SUCCESS;
733
const char *interface = "eth0";
734
struct ifreq network;
735
int sd;
736
uid_t uid;
737
gid_t gid;
738
char *connect_to = NULL;
739
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
740
const char *pubkeyfile = "pubkey.txt";
741
const char *seckeyfile = "seckey.txt";
742
mandos_context mc = { .simple_poll = NULL, .server = NULL,
743
.dh_bits = 1024, .priority = "SECURE256"};
744
745
{
746
struct argp_option options[] = {
747
{ .name = "debug", .key = 128,
748
.doc = "Debug mode", .group = 3 },
749
{ .name = "connect", .key = 'c',
750
.arg = "IP",
751
.doc = "Connect directly to a sepcified mandos server",
752
.group = 1 },
753
{ .name = "interface", .key = 'i',
754
.arg = "INTERFACE",
755
.doc = "Interface that Avahi will conntect through",
756
.group = 1 },
757
{ .name = "keydir", .key = 'd',
758
.arg = "KEYDIR",
759
.doc = "Directory where the openpgp keyring is",
760
.group = 1 },
761
{ .name = "seckey", .key = 's',
762
.arg = "SECKEY",
763
.doc = "Secret openpgp key for gnutls authentication",
764
.group = 1 },
765
{ .name = "pubkey", .key = 'p',
766
.arg = "PUBKEY",
767
.doc = "Public openpgp key for gnutls authentication",
768
.group = 2 },
769
{ .name = "dh-bits", .key = 129,
770
.arg = "BITS",
771
.doc = "dh-bits to use in gnutls communication",
772
.group = 2 },
773
{ .name = "priority", .key = 130,
774
.arg = "PRIORITY",
775
.doc = "GNUTLS priority", .group = 1 },
776
{ .name = NULL }
777
};
778
779
780
error_t parse_opt (int key, char *arg,
781
struct argp_state *state) {
782
/* Get the INPUT argument from `argp_parse', which we know is
783
a pointer to our plugin list pointer. */
784
switch (key) {
785
case 128:
786
debug = true;
787
break;
788
case 'c':
789
connect_to = arg;
790
break;
791
case 'i':
792
interface = arg;
793
break;
794
case 'd':
795
keydir = arg;
796
break;
797
case 's':
798
seckeyfile = arg;
799
break;
800
case 'p':
801
pubkeyfile = arg;
802
break;
803
case 129:
804
errno = 0;
805
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
806
if (errno){
807
perror("strtol");
808
exit(EXIT_FAILURE);
809
}
810
break;
811
case 130:
812
mc.priority = arg;
813
break;
814
case ARGP_KEY_ARG:
815
argp_usage (state);
816
break;
817
case ARGP_KEY_END:
818
break;
819
default:
820
return ARGP_ERR_UNKNOWN;
821
}
822
return 0;
823
}
824
825
struct argp argp = { .options = options, .parser = parse_opt,
826
.args_doc = "",
827
.doc = "Mandos client -- Get and decrypt"
828
" passwords from mandos server" };
829
argp_parse (&argp, argc, argv, 0, 0, NULL);
830
}
831
832
pubkeyfile = combinepath(keydir, pubkeyfile);
833
if (pubkeyfile == NULL){
834
perror("combinepath");
835
exitcode = EXIT_FAILURE;
836
goto end;
837
}
838
839
seckeyfile = combinepath(keydir, seckeyfile);
840
if (seckeyfile == NULL){
841
perror("combinepath");
842
goto end;
843
}
844
845
ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);
846
if (ret == -1){
847
fprintf(stderr, "init_gnutls_global\n");
848
goto end;
849
}
850
851
uid = getuid();
852
gid = getgid();
853
854
ret = setuid(uid);
855
if (ret == -1){
856
perror("setuid");
857
}
858
859
setgid(gid);
860
if (ret == -1){
861
perror("setgid");
862
}
863
864
if_index = (AvahiIfIndex) if_nametoindex(interface);
865
if(if_index == 0){
866
fprintf(stderr, "No such interface: \"%s\"\n", interface);
867
exit(EXIT_FAILURE);
868
}
869
870
if(connect_to != NULL){
871
/* Connect directly, do not use Zeroconf */
872
/* (Mainly meant for debugging) */
873
char *address = strrchr(connect_to, ':');
874
if(address == NULL){
875
fprintf(stderr, "No colon in address\n");
876
exitcode = EXIT_FAILURE;
877
goto end;
878
}
879
errno = 0;
880
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
881
if(errno){
882
perror("Bad port number");
883
exitcode = EXIT_FAILURE;
884
goto end;
885
}
886
*address = '\0';
887
address = connect_to;
888
ret = start_mandos_communication(address, port, if_index, &mc);
889
if(ret < 0){
890
exitcode = EXIT_FAILURE;
891
} else {
892
exitcode = EXIT_SUCCESS;
893
}
894
goto end;
895
}
896
897
/* If the interface is down, bring it up */
898
{
899
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
900
if(sd < 0) {
901
perror("socket");
902
exitcode = EXIT_FAILURE;
903
goto end;
904
}
905
strcpy(network.ifr_name, interface); /* Spurious warning */
906
ret = ioctl(sd, SIOCGIFFLAGS, &network);
907
if(ret == -1){
908
perror("ioctl SIOCGIFFLAGS");
909
exitcode = EXIT_FAILURE;
910
goto end;
911
}
912
if((network.ifr_flags & IFF_UP) == 0){
913
network.ifr_flags |= IFF_UP;
914
ret = ioctl(sd, SIOCSIFFLAGS, &network);
915
if(ret == -1){
916
perror("ioctl SIOCSIFFLAGS");
917
exitcode = EXIT_FAILURE;
918
goto end;
919
}
920
}
921
close(sd);
922
}
923
924
if (not debug){
925
avahi_set_log_function(empty_log);
926
}
927
928
/* Initialize the pseudo-RNG for Avahi */
929
srand((unsigned int) time(NULL));
930
931
/* Allocate main Avahi loop object */
932
mc.simple_poll = avahi_simple_poll_new();
933
if (mc.simple_poll == NULL) {
934
fprintf(stderr, "Avahi: Failed to create simple poll"
935
" object.\n");
936
exitcode = EXIT_FAILURE;
937
goto end;
938
}
939
940
{
941
AvahiServerConfig config;
942
/* Do not publish any local Zeroconf records */
943
avahi_server_config_init(&config);
944
config.publish_hinfo = 0;
945
config.publish_addresses = 0;
946
config.publish_workstation = 0;
947
config.publish_domain = 0;
948
949
/* Allocate a new server */
950
mc.server = avahi_server_new(avahi_simple_poll_get
951
(mc.simple_poll), &config, NULL,
952
NULL, &error);
953
954
/* Free the Avahi configuration data */
955
avahi_server_config_free(&config);
956
}
957
958
/* Check if creating the Avahi server object succeeded */
959
if (mc.server == NULL) {
960
fprintf(stderr, "Failed to create Avahi server: %s\n",
961
avahi_strerror(error));
962
exitcode = EXIT_FAILURE;
963
goto end;
964
}
965
966
/* Create the Avahi service browser */
967
sb = avahi_s_service_browser_new(mc.server, if_index,
968
AVAHI_PROTO_INET6,
969
"_mandos._tcp", NULL, 0,
970
browse_callback, &mc);
971
if (sb == NULL) {
972
fprintf(stderr, "Failed to create service browser: %s\n",
973
avahi_strerror(avahi_server_errno(mc.server)));
974
exitcode = EXIT_FAILURE;
975
goto end;
551
976
}
552
977
553
978
/* Run the main loop */
554
avahi_simple_poll_loop(simple_poll);
555
556
ret = 0;
557
558
fail:
979
980
if (debug){
981
fprintf(stderr, "Starting Avahi loop search\n");
982
}
983
984
avahi_simple_poll_loop(mc.simple_poll);
985
986
end:
987
988
if (debug){
989
fprintf(stderr, "%s exiting\n", argv[0]);
990
}
559
991
560
992
/* Cleanup things */
561
if (sb)
993
if (sb != NULL)
562
994
avahi_s_service_browser_free(sb);
563
995
564
if (server)
565
avahi_server_free(server);
566
567
if (simple_poll)
568
avahi_simple_poll_free(simple_poll);
569
570
return ret;
996
if (mc.server != NULL)
997
avahi_server_free(mc.server);
998
999
if (mc.simple_poll != NULL)
1000
avahi_simple_poll_free(mc.simple_poll);
1001
free(pubkeyfile);
1002
free(seckeyfile);
1003
1004
return exitcode;
571
1005
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0