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- Committer: Teddy Hogeborn
- Date: 2008-09-07 01:44:44 UTC
- mfrom: (24.1.93 mandos)
- Revision ID: teddy@fukt.bsnet.se-20080907014444-cf4ilzndc0tbn8va
Merge & resolve.
- files added:
- .bzrignore
- files removed:
- network-protocol.txt
- files renamed:
- mandos-client.c => plugin-runner.c
- mandos-client.xml => plugin-runner.xml
- plugins.d/password-request.c => plugins.d/mandos-client.c
- plugins.d/password-request.xml => plugins.d/mandos-client.xml
- files modified:
- Makefile
added
removed
plugins.d/mandos-client.c
32
32
#define _LARGEFILE_SOURCE
33
33
#define _FILE_OFFSET_BITS 64
34
34
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), asprintf() */
36
36
37
#include <stdio.h> /* fprintf(), stderr, fwrite(), stdout,
38
ferror() */
37
#include <stdio.h> /* fprintf(), stderr, fwrite(),
38
stdout, ferror() */
39
39
#include <stdint.h> /* uint16_t, uint32_t */
40
40
#include <stddef.h> /* NULL, size_t, ssize_t */
41
41
#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,
42
42
srand() */
43
43
#include <stdbool.h> /* bool, true */
44
44
#include <string.h> /* memset(), strcmp(), strlen(),
45
strerror(), memcpy(), strcpy() */
45
strerror(), asprintf(), strcpy() */
46
46
#include <sys/ioctl.h> /* ioctl */
47
47
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
48
48
sockaddr_in6, PF_INET6,
49
49
SOCK_STREAM, INET6_ADDRSTRLEN,
50
uid_t, gid_t */
51
#include <inttypes.h> /* PRIu16 */
50
uid_t, gid_t, open(), opendir(), DIR */
51
#include <sys/stat.h> /* open() */
52
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
53
53
struct in6_addr, inet_pton(),
54
54
connect() */
55
#include <fcntl.h> /* open() */
56
#include <dirent.h> /* opendir(), struct dirent, readdir() */
57
#include <inttypes.h> /* PRIu16 */
55
58
#include <assert.h> /* assert() */
56
59
#include <errno.h> /* perror(), errno */
57
60
#include <time.h> /* time() */
58
61
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
59
62
SIOCSIFFLAGS, if_indextoname(),
60
63
if_nametoindex(), IF_NAMESIZE */
64
#include <netinet/in.h>
61
65
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
62
66
getuid(), getgid(), setuid(),
63
67
setgid() */
64
#include <netinet/in.h>
65
68
#include <arpa/inet.h> /* inet_pton(), htons */
66
69
#include <iso646.h> /* not, and */
67
70
#include <argp.h> /* struct argp_option, error_t, struct
81
84
#include <avahi-common/error.h>
82
85
83
86
/* GnuTLS */
84
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and functions
87
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and
88
functions:
85
89
gnutls_*
86
90
init_gnutls_session(),
87
91
GNUTLS_* */
89
93
GNUTLS_OPENPGP_FMT_BASE64 */
90
94
91
95
/* GPGME */
92
#include <gpgme.h> /* All GPGME types, constants and functions
96
#include <gpgme.h> /* All GPGME types, constants and
97
functions:
93
98
gpgme_*
94
99
GPGME_PROTOCOL_OpenPGP,
95
100
GPG_ERR_NO_* */
96
101
97
102
#define BUFFER_SIZE 256
98
103
104
/*
105
#define PATHDIR "/conf/conf.d/mandos"
106
*/
107
108
#define PATHDIR "/conf/conf.d/mandos"
109
#define SECKEY "seckey.txt"
110
#define PUBKEY "pubkey.txt"
111
99
112
bool debug = false;
100
static const char *keydir = "/conf/conf.d/mandos";
101
113
static const char mandos_protocol_version[] = "1";
102
const char *argp_program_version = "password-request 1.0";
114
const char *argp_program_version = "mandos-client 1.0";
103
115
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
104
116
105
117
/* Used for passing in values through the Avahi callback functions */
110
122
unsigned int dh_bits;
111
123
gnutls_dh_params_t dh_params;
112
124
const char *priority;
125
gpgme_ctx_t ctx;
113
126
} mandos_context;
114
127
115
128
/*
130
143
}
131
144
132
145
/*
133
* Decrypt OpenPGP data using keyrings in HOMEDIR.
134
* Returns -1 on error
146
* Initialize GPGME.
135
147
*/
136
static ssize_t pgp_packet_decrypt (const char *cryptotext,
137
size_t crypto_size,
138
char **plaintext,
139
const char *homedir){
140
gpgme_data_t dh_crypto, dh_plain;
141
gpgme_ctx_t ctx;
148
static bool init_gpgme(mandos_context *mc, const char *seckey,
149
const char *pubkey, const char *tempdir){
150
int ret;
142
151
gpgme_error_t rc;
143
ssize_t ret;
144
size_t plaintext_capacity = 0;
145
ssize_t plaintext_length = 0;
146
152
gpgme_engine_info_t engine_info;
147
153
154
155
/*
156
* Helper function to insert pub and seckey to the enigne keyring.
157
*/
158
bool import_key(const char *filename){
159
int fd;
160
gpgme_data_t pgp_data;
161
162
fd = TEMP_FAILURE_RETRY(open(filename, O_RDONLY));
163
if(fd == -1){
164
perror("open");
165
return false;
166
}
167
168
rc = gpgme_data_new_from_fd(&pgp_data, fd);
169
if (rc != GPG_ERR_NO_ERROR){
170
fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
171
gpgme_strsource(rc), gpgme_strerror(rc));
172
return false;
173
}
174
175
rc = gpgme_op_import(mc->ctx, pgp_data);
176
if (rc != GPG_ERR_NO_ERROR){
177
fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
178
gpgme_strsource(rc), gpgme_strerror(rc));
179
return false;
180
}
181
182
ret = TEMP_FAILURE_RETRY(close(fd));
183
if(ret == -1){
184
perror("close");
185
}
186
gpgme_data_release(pgp_data);
187
return true;
188
}
189
148
190
if (debug){
149
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
191
fprintf(stderr, "Initialize gpgme\n");
150
192
}
151
193
152
194
/* Init GPGME */
155
197
if (rc != GPG_ERR_NO_ERROR){
156
198
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
157
199
gpgme_strsource(rc), gpgme_strerror(rc));
158
return -1;
200
return false;
159
201
}
160
202
161
/* Set GPGME home directory for the OpenPGP engine only */
203
/* Set GPGME home directory for the OpenPGP engine only */
162
204
rc = gpgme_get_engine_info (&engine_info);
163
205
if (rc != GPG_ERR_NO_ERROR){
164
206
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
165
207
gpgme_strsource(rc), gpgme_strerror(rc));
166
return -1;
208
return false;
167
209
}
168
210
while(engine_info != NULL){
169
211
if(engine_info->protocol == GPGME_PROTOCOL_OpenPGP){
170
212
gpgme_set_engine_info(GPGME_PROTOCOL_OpenPGP,
171
engine_info->file_name, homedir);
213
engine_info->file_name, tempdir);
172
214
break;
173
215
}
174
216
engine_info = engine_info->next;
175
217
}
176
218
if(engine_info == NULL){
177
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
178
return -1;
219
fprintf(stderr, "Could not set GPGME home dir to %s\n", tempdir);
220
return false;
221
}
222
223
/* Create new GPGME "context" */
224
rc = gpgme_new(&(mc->ctx));
225
if (rc != GPG_ERR_NO_ERROR){
226
fprintf(stderr, "bad gpgme_new: %s: %s\n",
227
gpgme_strsource(rc), gpgme_strerror(rc));
228
return false;
229
}
230
231
if (not import_key(pubkey) or not import_key(seckey)){
232
return false;
233
}
234
235
return true;
236
}
237
238
/*
239
* Decrypt OpenPGP data.
240
* Returns -1 on error
241
*/
242
static ssize_t pgp_packet_decrypt (const mandos_context *mc,
243
const char *cryptotext,
244
size_t crypto_size,
245
char **plaintext){
246
gpgme_data_t dh_crypto, dh_plain;
247
gpgme_error_t rc;
248
ssize_t ret;
249
size_t plaintext_capacity = 0;
250
ssize_t plaintext_length = 0;
251
252
if (debug){
253
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
179
254
}
180
255
181
256
/* Create new GPGME data buffer from memory cryptotext */
196
271
return -1;
197
272
}
198
273
199
/* Create new GPGME "context" */
200
rc = gpgme_new(&ctx);
201
if (rc != GPG_ERR_NO_ERROR){
202
fprintf(stderr, "bad gpgme_new: %s: %s\n",
203
gpgme_strsource(rc), gpgme_strerror(rc));
204
plaintext_length = -1;
205
goto decrypt_end;
206
}
207
208
274
/* Decrypt data from the cryptotext data buffer to the plaintext
209
275
data buffer */
210
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
276
rc = gpgme_op_decrypt(mc->ctx, dh_crypto, dh_plain);
211
277
if (rc != GPG_ERR_NO_ERROR){
212
278
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
213
279
gpgme_strsource(rc), gpgme_strerror(rc));
214
280
plaintext_length = -1;
281
if (debug){
282
gpgme_decrypt_result_t result;
283
result = gpgme_op_decrypt_result(mc->ctx);
284
if (result == NULL){
285
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
286
} else {
287
fprintf(stderr, "Unsupported algorithm: %s\n",
288
result->unsupported_algorithm);
289
fprintf(stderr, "Wrong key usage: %u\n",
290
result->wrong_key_usage);
291
if(result->file_name != NULL){
292
fprintf(stderr, "File name: %s\n", result->file_name);
293
}
294
gpgme_recipient_t recipient;
295
recipient = result->recipients;
296
if(recipient){
297
while(recipient != NULL){
298
fprintf(stderr, "Public key algorithm: %s\n",
299
gpgme_pubkey_algo_name(recipient->pubkey_algo));
300
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
301
fprintf(stderr, "Secret key available: %s\n",
302
recipient->status == GPG_ERR_NO_SECKEY
303
? "No" : "Yes");
304
recipient = recipient->next;
305
}
306
}
307
}
308
}
215
309
goto decrypt_end;
216
310
}
217
311
219
313
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
220
314
}
221
315
222
if (debug){
223
gpgme_decrypt_result_t result;
224
result = gpgme_op_decrypt_result(ctx);
225
if (result == NULL){
226
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
227
} else {
228
fprintf(stderr, "Unsupported algorithm: %s\n",
229
result->unsupported_algorithm);
230
fprintf(stderr, "Wrong key usage: %u\n",
231
result->wrong_key_usage);
232
if(result->file_name != NULL){
233
fprintf(stderr, "File name: %s\n", result->file_name);
234
}
235
gpgme_recipient_t recipient;
236
recipient = result->recipients;
237
if(recipient){
238
while(recipient != NULL){
239
fprintf(stderr, "Public key algorithm: %s\n",
240
gpgme_pubkey_algo_name(recipient->pubkey_algo));
241
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
242
fprintf(stderr, "Secret key available: %s\n",
243
recipient->status == GPG_ERR_NO_SECKEY
244
? "No" : "Yes");
245
recipient = recipient->next;
246
}
247
}
248
}
249
}
250
251
316
/* Seek back to the beginning of the GPGME plaintext data buffer */
252
317
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
253
perror("pgpme_data_seek");
318
perror("gpgme_data_seek");
254
319
plaintext_length = -1;
255
320
goto decrypt_end;
256
321
}
280
345
}
281
346
plaintext_length += ret;
282
347
}
283
348
284
349
if(debug){
285
350
fprintf(stderr, "Decrypted password is: ");
286
351
for(ssize_t i = 0; i < plaintext_length; i++){
300
365
}
301
366
302
367
static const char * safer_gnutls_strerror (int value) {
303
const char *ret = gnutls_strerror (value);
368
const char *ret = gnutls_strerror (value); /* Spurious warning */
304
369
if (ret == NULL)
305
370
ret = "(unknown)";
306
371
return ret;
313
378
}
314
379
315
380
static int init_gnutls_global(mandos_context *mc,
316
const char *pubkeyfile,
317
const char *seckeyfile){
381
const char *pubkeyfilename,
382
const char *seckeyfilename){
318
383
int ret;
319
384
320
385
if(debug){
339
404
/* OpenPGP credentials */
340
405
gnutls_certificate_allocate_credentials(&mc->cred);
341
406
if (ret != GNUTLS_E_SUCCESS){
342
fprintf (stderr, "GnuTLS memory error: %s\n",
407
fprintf (stderr, "GnuTLS memory error: %s\n", /* Spurious
408
warning */
343
409
safer_gnutls_strerror(ret));
344
410
gnutls_global_deinit ();
345
411
return -1;
346
412
}
347
413
348
414
if(debug){
349
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
350
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
351
seckeyfile);
415
fprintf(stderr, "Attempting to use OpenPGP public key %s and"
416
" secret key %s as GnuTLS credentials\n", pubkeyfilename,
417
seckeyfilename);
352
418
}
353
419
354
420
ret = gnutls_certificate_set_openpgp_key_file
355
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
421
(mc->cred, pubkeyfilename, seckeyfilename,
422
GNUTLS_OPENPGP_FMT_BASE64);
356
423
if (ret != GNUTLS_E_SUCCESS) {
357
424
fprintf(stderr,
358
425
"Error[%d] while reading the OpenPGP key pair ('%s',"
359
" '%s')\n", ret, pubkeyfile, seckeyfile);
360
fprintf(stdout, "The GnuTLS error is: %s\n",
426
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
427
fprintf(stderr, "The GnuTLS error is: %s\n",
361
428
safer_gnutls_strerror(ret));
362
429
goto globalfail;
363
430
}
377
444
}
378
445
379
446
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
380
447
381
448
return 0;
382
449
383
450
globalfail:
384
451
385
452
gnutls_certificate_free_credentials(mc->cred);
386
453
gnutls_global_deinit();
454
gnutls_dh_params_deinit(mc->dh_params);
387
455
return -1;
388
389
456
}
390
457
391
458
static int init_gnutls_session(mandos_context *mc,
463
530
perror("socket");
464
531
return -1;
465
532
}
466
533
467
534
if(debug){
468
535
if(if_indextoname((unsigned int)if_index, interface) == NULL){
469
536
perror("if_indextoname");
472
539
fprintf(stderr, "Binding to interface %s\n", interface);
473
540
}
474
541
475
memset(&to,0,sizeof(to)); /* Spurious warning */
542
memset(&to, 0, sizeof(to));
476
543
to.in6.sin6_family = AF_INET6;
477
544
/* It would be nice to have a way to detect if we were passed an
478
545
IPv4 address here. Now we assume an IPv6 address. */
508
575
perror("connect");
509
576
return -1;
510
577
}
511
578
512
579
const char *out = mandos_protocol_version;
513
580
written = 0;
514
581
while (true){
532
599
}
533
600
}
534
601
}
535
602
536
603
if(debug){
537
604
fprintf(stderr, "Establishing TLS session with %s\n", ip);
538
605
}
539
606
540
607
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
541
608
542
609
do{
543
610
ret = gnutls_handshake (session);
544
611
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
558
625
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
559
626
ip);
560
627
}
561
628
562
629
while(true){
563
630
buffer_capacity = adjustbuffer(&buffer, buffer_length,
564
631
buffer_capacity);
608
675
gnutls_bye (session, GNUTLS_SHUT_RDWR);
609
676
610
677
if (buffer_length > 0){
611
decrypted_buffer_size = pgp_packet_decrypt(buffer,
678
decrypted_buffer_size = pgp_packet_decrypt(mc, buffer,
612
679
buffer_length,
613
&decrypted_buffer,
614
keydir);
680
&decrypted_buffer);
615
681
if (decrypted_buffer_size >= 0){
616
682
written = 0;
617
683
while(written < (size_t) decrypted_buffer_size){
632
698
} else {
633
699
retval = -1;
634
700
}
701
} else {
702
retval = -1;
635
703
}
636
704
637
705
/* Shutdown procedure */
638
706
639
707
mandos_end:
640
708
free(buffer);
641
close(tcp_sd);
709
ret = TEMP_FAILURE_RETRY(close(tcp_sd));
710
if(ret == -1){
711
perror("close");
712
}
642
713
gnutls_deinit (session);
643
714
return retval;
644
715
}
658
729
flags,
659
730
void* userdata) {
660
731
mandos_context *mc = userdata;
661
assert(r); /* Spurious warning */
732
assert(r);
662
733
663
734
/* Called whenever a service has been resolved successfully or
664
735
timed out */
682
753
}
683
754
int ret = start_mandos_communication(ip, port, interface, mc);
684
755
if (ret == 0){
685
exit(EXIT_SUCCESS);
756
avahi_simple_poll_quit(mc->simple_poll);
686
757
}
687
758
}
688
759
}
700
771
flags,
701
772
void* userdata) {
702
773
mandos_context *mc = userdata;
703
assert(b); /* Spurious warning */
774
assert(b);
704
775
705
776
/* Called whenever a new services becomes available on the LAN or
706
777
is removed from the LAN */
740
811
}
741
812
}
742
813
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
814
int main(int argc, char *argv[]){
765
815
AvahiSServiceBrowser *sb = NULL;
766
816
int error;
772
822
uid_t uid;
773
823
gid_t gid;
774
824
char *connect_to = NULL;
825
char tempdir[] = "/tmp/mandosXXXXXX";
775
826
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
776
const char *pubkeyfile = "pubkey.txt";
777
const char *seckeyfile = "seckey.txt";
827
const char *seckey = PATHDIR "/" SECKEY;
828
const char *pubkey = PATHDIR "/" PUBKEY;
829
778
830
mandos_context mc = { .simple_poll = NULL, .server = NULL,
779
.dh_bits = 1024, .priority = "SECURE256"};
831
.dh_bits = 1024, .priority = "SECURE256"
832
":!CTYPE-X.509:+CTYPE-OPENPGP" };
780
833
bool gnutls_initalized = false;
834
bool gpgme_initalized = false;
781
835
782
836
{
783
837
struct argp_option options[] = {
784
838
{ .name = "debug", .key = 128,
785
839
.doc = "Debug mode", .group = 3 },
786
840
{ .name = "connect", .key = 'c',
787
.arg = "IP",
788
.doc = "Connect directly to a sepcified mandos server",
841
.arg = "ADDRESS:PORT",
842
.doc = "Connect directly to a specific Mandos server",
789
843
.group = 1 },
790
844
{ .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",
845
.arg = "NAME",
846
.doc = "Interface that will be used to search for Mandos"
847
" servers",
797
848
.group = 1 },
798
849
{ .name = "seckey", .key = 's',
799
.arg = "SECKEY",
800
.doc = "Secret openpgp key for gnutls authentication",
850
.arg = "FILE",
851
.doc = "OpenPGP secret key file base name",
801
852
.group = 1 },
802
853
{ .name = "pubkey", .key = 'p',
803
.arg = "PUBKEY",
804
.doc = "Public openpgp key for gnutls authentication",
854
.arg = "FILE",
855
.doc = "OpenPGP public key file base name",
805
856
.group = 2 },
806
857
{ .name = "dh-bits", .key = 129,
807
858
.arg = "BITS",
808
.doc = "dh-bits to use in gnutls communication",
859
.doc = "Bit length of the prime number used in the"
860
" Diffie-Hellman key exchange",
809
861
.group = 2 },
810
862
{ .name = "priority", .key = 130,
811
.arg = "PRIORITY",
812
.doc = "GNUTLS priority", .group = 1 },
863
.arg = "STRING",
864
.doc = "GnuTLS priority string for the TLS handshake",
865
.group = 1 },
813
866
{ .name = NULL }
814
867
};
815
816
868
817
869
error_t parse_opt (int key, char *arg,
818
870
struct argp_state *state) {
819
871
/* Get the INPUT argument from `argp_parse', which we know is
820
872
a pointer to our plugin list pointer. */
821
873
switch (key) {
822
case 128:
874
case 128: /* --debug */
823
875
debug = true;
824
876
break;
825
case 'c':
877
case 'c': /* --connect */
826
878
connect_to = arg;
827
879
break;
828
case 'i':
880
case 'i': /* --interface */
829
881
interface = arg;
830
882
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:
883
case 's': /* --seckey */
884
seckey = arg;
885
break;
886
case 'p': /* --pubkey */
887
pubkey = arg;
888
break;
889
case 129: /* --dh-bits */
841
890
errno = 0;
842
891
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
843
892
if (errno){
845
894
exit(EXIT_FAILURE);
846
895
}
847
896
break;
848
case 130:
897
case 130: /* --priority */
849
898
mc.priority = arg;
850
899
break;
851
900
case ARGP_KEY_ARG:
852
901
argp_usage (state);
902
case ARGP_KEY_END:
853
903
break;
854
case ARGP_KEY_END:
855
break;
856
904
default:
857
905
return ARGP_ERR_UNKNOWN;
858
906
}
859
907
return 0;
860
908
}
861
909
862
910
struct argp argp = { .options = options, .parser = parse_opt,
863
911
.args_doc = "",
864
912
.doc = "Mandos client -- Get and decrypt"
865
" passwords from mandos server" };
913
" passwords from a Mandos server" };
866
914
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
867
915
if (ret == ARGP_ERR_UNKNOWN){
868
fprintf(stderr, "Unkown error while parsing arguments\n");
916
fprintf(stderr, "Unknown error while parsing arguments\n");
869
917
exitcode = EXIT_FAILURE;
870
918
goto end;
871
919
}
872
920
}
873
874
pubkeyfile = combinepath(keydir, pubkeyfile);
875
if (pubkeyfile == NULL){
876
perror("combinepath");
877
exitcode = EXIT_FAILURE;
878
goto end;
879
}
880
881
seckeyfile = combinepath(keydir, seckeyfile);
882
if (seckeyfile == NULL){
883
perror("combinepath");
884
goto end;
885
}
886
887
ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);
888
if (ret == -1){
889
fprintf(stderr, "init_gnutls_global\n");
890
goto end;
891
} else {
892
gnutls_initalized = true;
893
}
894
921
895
922
/* If the interface is down, bring it up */
896
923
{
900
927
exitcode = EXIT_FAILURE;
901
928
goto end;
902
929
}
903
strcpy(network.ifr_name, interface); /* Spurious warning */
930
strcpy(network.ifr_name, interface);
904
931
ret = ioctl(sd, SIOCGIFFLAGS, &network);
905
932
if(ret == -1){
906
933
perror("ioctl SIOCGIFFLAGS");
916
943
goto end;
917
944
}
918
945
}
919
close(sd);
946
ret = TEMP_FAILURE_RETRY(close(sd));
947
if(ret == -1){
948
perror("close");
949
}
920
950
}
921
951
922
952
uid = getuid();
932
962
perror("setgid");
933
963
}
934
964
965
ret = init_gnutls_global(&mc, pubkey, seckey);
966
if (ret == -1){
967
fprintf(stderr, "init_gnutls_global failed\n");
968
exitcode = EXIT_FAILURE;
969
goto end;
970
} else {
971
gnutls_initalized = true;
972
}
973
974
if(mkdtemp(tempdir) == NULL){
975
perror("mkdtemp");
976
tempdir[0] = '\0';
977
goto end;
978
}
979
980
if(not init_gpgme(&mc, pubkey, seckey, tempdir)){
981
fprintf(stderr, "gpgme_initalized failed\n");
982
exitcode = EXIT_FAILURE;
983
goto end;
984
} else {
985
gpgme_initalized = true;
986
}
987
935
988
if_index = (AvahiIfIndex) if_nametoindex(interface);
936
989
if(if_index == 0){
937
990
fprintf(stderr, "No such interface: \"%s\"\n", interface);
980
1033
exitcode = EXIT_FAILURE;
981
1034
goto end;
982
1035
}
983
1036
984
1037
{
985
1038
AvahiServerConfig config;
986
1039
/* Do not publish any local Zeroconf records */
989
1042
config.publish_addresses = 0;
990
1043
config.publish_workstation = 0;
991
1044
config.publish_domain = 0;
992
1045
993
1046
/* Allocate a new server */
994
1047
mc.server = avahi_server_new(avahi_simple_poll_get
995
1048
(mc.simple_poll), &config, NULL,
996
1049
NULL, &error);
997
1050
998
1051
/* Free the Avahi configuration data */
999
1052
avahi_server_config_free(&config);
1000
1053
}
1020
1073
}
1021
1074
1022
1075
/* Run the main loop */
1023
1076
1024
1077
if (debug){
1025
1078
fprintf(stderr, "Starting Avahi loop search\n");
1026
1079
}
1028
1081
avahi_simple_poll_loop(mc.simple_poll);
1029
1082
1030
1083
end:
1031
1084
1032
1085
if (debug){
1033
1086
fprintf(stderr, "%s exiting\n", argv[0]);
1034
1087
}
1039
1092
1040
1093
if (mc.server != NULL)
1041
1094
avahi_server_free(mc.server);
1042
1095
1043
1096
if (mc.simple_poll != NULL)
1044
1097
avahi_simple_poll_free(mc.simple_poll);
1045
free(pubkeyfile);
1046
free(seckeyfile);
1047
1098
1048
1099
if (gnutls_initalized){
1049
1100
gnutls_certificate_free_credentials(mc.cred);
1050
1101
gnutls_global_deinit ();
1051
}
1052
1102
gnutls_dh_params_deinit(mc.dh_params);
1103
}
1104
1105
if(gpgme_initalized){
1106
gpgme_release(mc.ctx);
1107
}
1108
1109
/* Removes the temp directory used by GPGME */
1110
if(tempdir[0] != '\0'){
1111
DIR *d;
1112
struct dirent *direntry;
1113
d = opendir(tempdir);
1114
if(d == NULL){
1115
perror("opendir");
1116
} else {
1117
while(true){
1118
direntry = readdir(d);
1119
if(direntry == NULL){
1120
break;
1121
}
1122
if (direntry->d_type == DT_REG){
1123
char *fullname = NULL;
1124
ret = asprintf(&fullname, "%s/%s", tempdir,
1125
direntry->d_name);
1126
if(ret < 0){
1127
perror("asprintf");
1128
continue;
1129
}
1130
ret = unlink(fullname);
1131
if(ret == -1){
1132
fprintf(stderr, "unlink(\"%s\"): %s",
1133
fullname, strerror(errno));
1134
}
1135
free(fullname);
1136
}
1137
}
1138
closedir(d);
1139
}
1140
ret = rmdir(tempdir);
1141
if(ret == -1){
1142
perror("rmdir");
1143
}
1144
}
1145
1053
1146
return exitcode;
1054
1147
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0