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- Committer: Teddy Hogeborn
- Date: 2008-08-03 21:45:14 UTC
- mfrom: (24.1.13 mandos)
- Revision ID: teddy@fukt.bsnet.se-20080803214514-plvvkrpoitwsrxeg
Merge.
- files added:
- ca.pem
- files removed:
- .bzrignore
- files renamed:
- plugin-runner.c => plugbasedclient.c
- plugins.d/password-request.c => plugins.d/mandosclient.c
- plugins.d/password-prompt.c => plugins.d/passprompt.c
- mandos.conf => server.conf
- mandos => server.py
- files modified:
- Makefile
added
removed
plugins.d/mandosclient.c
32
32
#define _LARGEFILE_SOURCE
33
33
#define _FILE_OFFSET_BITS 64
34
34
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), asprintf() */
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */
36
36
37
#include <stdio.h> /* fprintf(), stderr, fwrite(),
38
stdout, 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(), asprintf(), 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() */
37
#include <stdio.h>
38
#include <assert.h>
39
#include <stdlib.h>
40
#include <time.h>
41
#include <net/if.h> /* if_nametoindex */
42
#include <sys/ioctl.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
43
SIOCSIFFLAGS */
58
44
#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 */
45
SIOCSIFFLAGS */
71
46
72
/* Avahi */
73
/* All Avahi types, constants and functions
74
Avahi*, avahi_*,
75
AVAHI_* */
76
47
#include <avahi-core/core.h>
77
48
#include <avahi-core/lookup.h>
78
49
#include <avahi-core/log.h>
80
51
#include <avahi-common/malloc.h>
81
52
#include <avahi-common/error.h>
82
53
83
/* GnuTLS */
84
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and
85
functions:
86
gnutls_*
87
init_gnutls_session(),
88
GNUTLS_* */
89
#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),
90
GNUTLS_OPENPGP_FMT_BASE64 */
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 */
60
61
#include <unistd.h> /* close() */
62
#include <netinet/in.h>
63
#include <stdbool.h> /* true */
64
#include <string.h> /* memset */
65
#include <arpa/inet.h> /* inet_pton() */
66
#include <iso646.h> /* not */
67
#include <net/if.h> /* IF_NAMESIZE */
91
68
92
69
/* GPGME */
93
#include <gpgme.h> /* All GPGME types, constants and
94
functions:
95
gpgme_*
96
GPGME_PROTOCOL_OpenPGP,
97
GPG_ERR_NO_* */
70
#include <errno.h> /* perror() */
71
#include <gpgme.h>
72
73
/* getopt_long */
74
#include <getopt.h>
98
75
99
76
#define BUFFER_SIZE 256
100
77
78
static const char *keydir = "/conf/conf.d/mandos";
79
static const char *pubkeyfile = "pubkey.txt";
80
static const char *seckeyfile = "seckey.txt";
81
101
82
bool debug = false;
102
static const char *keydir = "/conf/conf.d/mandos";
103
static const char mandos_protocol_version[] = "1";
104
const char *argp_program_version = "password-request 1.0";
105
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
106
107
/* Used for passing in values through the Avahi callback functions */
83
84
const char mandos_protocol_version[] = "1";
85
86
/* Used for passing in values through all the callback functions */
108
87
typedef struct {
109
88
AvahiSimplePoll *simple_poll;
110
89
AvahiServer *server;
114
93
const char *priority;
115
94
} mandos_context;
116
95
117
/*
118
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
119
* "buffer_capacity" is how much is currently allocated,
120
* "buffer_length" is how much is already used.
121
*/
122
96
size_t adjustbuffer(char **buffer, size_t buffer_length,
123
97
size_t buffer_capacity){
124
98
if (buffer_length + BUFFER_SIZE > buffer_capacity){
214
188
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
215
189
gpgme_strsource(rc), gpgme_strerror(rc));
216
190
plaintext_length = -1;
217
if (debug){
218
gpgme_decrypt_result_t result;
219
result = gpgme_op_decrypt_result(ctx);
220
if (result == NULL){
221
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
222
} else {
223
fprintf(stderr, "Unsupported algorithm: %s\n",
224
result->unsupported_algorithm);
225
fprintf(stderr, "Wrong key usage: %u\n",
226
result->wrong_key_usage);
227
if(result->file_name != NULL){
228
fprintf(stderr, "File name: %s\n", result->file_name);
229
}
230
gpgme_recipient_t recipient;
231
recipient = result->recipients;
232
if(recipient){
233
while(recipient != NULL){
234
fprintf(stderr, "Public key algorithm: %s\n",
235
gpgme_pubkey_algo_name(recipient->pubkey_algo));
236
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
237
fprintf(stderr, "Secret key available: %s\n",
238
recipient->status == GPG_ERR_NO_SECKEY
239
? "No" : "Yes");
240
recipient = recipient->next;
241
}
242
}
243
}
244
}
245
191
goto decrypt_end;
246
192
}
247
193
249
195
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
250
196
}
251
197
198
if (debug){
199
gpgme_decrypt_result_t result;
200
result = gpgme_op_decrypt_result(ctx);
201
if (result == NULL){
202
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
203
} else {
204
fprintf(stderr, "Unsupported algorithm: %s\n",
205
result->unsupported_algorithm);
206
fprintf(stderr, "Wrong key usage: %d\n",
207
result->wrong_key_usage);
208
if(result->file_name != NULL){
209
fprintf(stderr, "File name: %s\n", result->file_name);
210
}
211
gpgme_recipient_t recipient;
212
recipient = result->recipients;
213
if(recipient){
214
while(recipient != NULL){
215
fprintf(stderr, "Public key algorithm: %s\n",
216
gpgme_pubkey_algo_name(recipient->pubkey_algo));
217
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
218
fprintf(stderr, "Secret key available: %s\n",
219
recipient->status == GPG_ERR_NO_SECKEY
220
? "No" : "Yes");
221
recipient = recipient->next;
222
}
223
}
224
}
225
}
226
252
227
/* Seek back to the beginning of the GPGME plaintext data buffer */
253
228
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
254
229
perror("pgpme_data_seek");
258
233
259
234
*plaintext = NULL;
260
235
while(true){
261
plaintext_capacity = adjustbuffer(plaintext,
262
(size_t)plaintext_length,
236
plaintext_capacity = adjustbuffer(plaintext, (size_t)plaintext_length,
263
237
plaintext_capacity);
264
238
if (plaintext_capacity == 0){
265
239
perror("adjustbuffer");
281
255
}
282
256
plaintext_length += ret;
283
257
}
284
258
285
259
if(debug){
286
260
fprintf(stderr, "Decrypted password is: ");
287
261
for(ssize_t i = 0; i < plaintext_length; i++){
301
275
}
302
276
303
277
static const char * safer_gnutls_strerror (int value) {
304
const char *ret = gnutls_strerror (value); /* Spurious warning */
278
const char *ret = gnutls_strerror (value);
305
279
if (ret == NULL)
306
280
ret = "(unknown)";
307
281
return ret;
313
287
fprintf(stderr, "GnuTLS: %s", string);
314
288
}
315
289
316
static int init_gnutls_global(mandos_context *mc,
317
const char *pubkeyfilename,
318
const char *seckeyfilename){
290
static int init_gnutls_global(mandos_context *mc){
319
291
int ret;
320
292
321
293
if(debug){
322
294
fprintf(stderr, "Initializing GnuTLS\n");
323
295
}
324
325
ret = gnutls_global_init();
326
if (ret != GNUTLS_E_SUCCESS) {
296
297
if ((ret = gnutls_global_init ())
298
!= GNUTLS_E_SUCCESS) {
327
299
fprintf (stderr, "GnuTLS global_init: %s\n",
328
300
safer_gnutls_strerror(ret));
329
301
return -1;
338
310
}
339
311
340
312
/* OpenPGP credentials */
341
gnutls_certificate_allocate_credentials(&mc->cred);
342
if (ret != GNUTLS_E_SUCCESS){
343
fprintf (stderr, "GnuTLS memory error: %s\n", /* Spurious
344
warning */
313
if ((ret = gnutls_certificate_allocate_credentials (&mc->cred))
314
!= GNUTLS_E_SUCCESS) {
315
fprintf (stderr, "GnuTLS memory error: %s\n",
345
316
safer_gnutls_strerror(ret));
346
gnutls_global_deinit ();
347
317
return -1;
348
318
}
349
319
350
320
if(debug){
351
321
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
352
" and keyfile %s as GnuTLS credentials\n", pubkeyfilename,
353
seckeyfilename);
322
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
323
seckeyfile);
354
324
}
355
325
356
326
ret = gnutls_certificate_set_openpgp_key_file
357
(mc->cred, pubkeyfilename, seckeyfilename,
358
GNUTLS_OPENPGP_FMT_BASE64);
327
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
359
328
if (ret != GNUTLS_E_SUCCESS) {
360
329
fprintf(stderr,
361
330
"Error[%d] while reading the OpenPGP key pair ('%s',"
362
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
331
" '%s')\n", ret, pubkeyfile, seckeyfile);
363
332
fprintf(stdout, "The GnuTLS error is: %s\n",
364
333
safer_gnutls_strerror(ret));
365
goto globalfail;
334
return -1;
366
335
}
367
336
368
337
/* GnuTLS server initialization */
370
339
if (ret != GNUTLS_E_SUCCESS) {
371
340
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
372
341
" %s\n", safer_gnutls_strerror(ret));
373
goto globalfail;
342
return -1;
374
343
}
375
344
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
376
345
if (ret != GNUTLS_E_SUCCESS) {
377
346
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
378
347
safer_gnutls_strerror(ret));
379
goto globalfail;
348
return -1;
380
349
}
381
350
382
351
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
383
352
384
353
return 0;
385
386
globalfail:
387
388
gnutls_certificate_free_credentials(mc->cred);
389
gnutls_global_deinit();
390
return -1;
391
354
}
392
355
393
static int init_gnutls_session(mandos_context *mc,
394
gnutls_session_t *session){
356
static int init_gnutls_session(mandos_context *mc, gnutls_session_t *session){
395
357
int ret;
396
358
/* GnuTLS session creation */
397
359
ret = gnutls_init(session, GNUTLS_SERVER);
407
369
fprintf(stderr, "Syntax error at: %s\n", err);
408
370
fprintf(stderr, "GnuTLS error: %s\n",
409
371
safer_gnutls_strerror(ret));
410
gnutls_deinit (*session);
411
372
return -1;
412
373
}
413
374
}
417
378
if (ret != GNUTLS_E_SUCCESS) {
418
379
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
419
380
safer_gnutls_strerror(ret));
420
gnutls_deinit (*session);
421
381
return -1;
422
382
}
423
383
439
399
AvahiIfIndex if_index,
440
400
mandos_context *mc){
441
401
int ret, tcp_sd;
442
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
402
struct sockaddr_in6 to;
443
403
char *buffer = NULL;
444
404
char *decrypted_buffer;
445
405
size_t buffer_length = 0;
449
409
int retval = 0;
450
410
char interface[IF_NAMESIZE];
451
411
gnutls_session_t session;
412
gnutls_dh_params_t dh_params;
452
413
453
414
ret = init_gnutls_session (mc, &session);
454
415
if (ret != 0){
456
417
}
457
418
458
419
if(debug){
459
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
460
"\n", ip, port);
420
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
421
ip, port);
461
422
}
462
423
463
424
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
465
426
perror("socket");
466
427
return -1;
467
428
}
468
429
469
430
if(debug){
470
431
if(if_indextoname((unsigned int)if_index, interface) == NULL){
471
432
perror("if_indextoname");
474
435
fprintf(stderr, "Binding to interface %s\n", interface);
475
436
}
476
437
477
memset(&to, 0, sizeof(to));
478
to.in6.sin6_family = AF_INET6;
438
memset(&to,0,sizeof(to)); /* Spurious warning */
439
to.sin6_family = AF_INET6;
479
440
/* It would be nice to have a way to detect if we were passed an
480
441
IPv4 address here. Now we assume an IPv6 address. */
481
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
442
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
482
443
if (ret < 0 ){
483
444
perror("inet_pton");
484
445
return -1;
487
448
fprintf(stderr, "Bad address: %s\n", ip);
488
449
return -1;
489
450
}
490
to.in6.sin6_port = htons(port); /* Spurious warning */
451
to.sin6_port = htons(port); /* Spurious warning */
491
452
492
to.in6.sin6_scope_id = (uint32_t)if_index;
453
to.sin6_scope_id = (uint32_t)if_index;
493
454
494
455
if(debug){
495
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
496
port);
456
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
497
457
char addrstr[INET6_ADDRSTRLEN] = "";
498
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
458
if(inet_ntop(to.sin6_family, &(to.sin6_addr), addrstr,
499
459
sizeof(addrstr)) == NULL){
500
460
perror("inet_ntop");
501
461
} else {
505
465
}
506
466
}
507
467
508
ret = connect(tcp_sd, &to.in, sizeof(to));
468
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
509
469
if (ret < 0){
510
470
perror("connect");
511
471
return -1;
512
472
}
513
473
514
474
const char *out = mandos_protocol_version;
515
475
written = 0;
516
476
while (true){
534
494
}
535
495
}
536
496
}
537
497
538
498
if(debug){
539
499
fprintf(stderr, "Establishing TLS session with %s\n", ip);
540
500
}
541
501
542
502
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
543
503
544
do{
545
ret = gnutls_handshake (session);
546
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
504
ret = gnutls_handshake (session);
547
505
548
506
if (ret != GNUTLS_E_SUCCESS){
549
507
if(debug){
560
518
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
561
519
ip);
562
520
}
563
521
564
522
while(true){
565
buffer_capacity = adjustbuffer(&buffer, buffer_length,
566
buffer_capacity);
523
buffer_capacity = adjustbuffer(&buffer, buffer_length, buffer_capacity);
567
524
if (buffer_capacity == 0){
568
525
perror("adjustbuffer");
569
526
retval = -1;
581
538
case GNUTLS_E_AGAIN:
582
539
break;
583
540
case GNUTLS_E_REHANDSHAKE:
584
do{
585
ret = gnutls_handshake (session);
586
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
541
ret = gnutls_handshake (session);
587
542
if (ret < 0){
588
543
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
589
544
gnutls_perror (ret);
634
589
} else {
635
590
retval = -1;
636
591
}
637
} else {
638
retval = -1;
639
592
}
640
593
641
594
/* Shutdown procedure */
644
597
free(buffer);
645
598
close(tcp_sd);
646
599
gnutls_deinit (session);
600
gnutls_certificate_free_credentials (mc->cred);
601
gnutls_global_deinit ();
647
602
return retval;
648
603
}
649
604
662
617
flags,
663
618
void* userdata) {
664
619
mandos_context *mc = userdata;
665
assert(r);
620
assert(r); /* Spurious warning */
666
621
667
622
/* Called whenever a service has been resolved successfully or
668
623
timed out */
680
635
char ip[AVAHI_ADDRESS_STR_MAX];
681
636
avahi_address_snprint(ip, sizeof(ip), address);
682
637
if(debug){
683
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
684
PRIu16 ") on port %d\n", name, host_name, ip,
685
interface, port);
638
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %d) on"
639
" port %d\n", name, host_name, ip, interface, port);
686
640
}
687
641
int ret = start_mandos_communication(ip, port, interface, mc);
688
642
if (ret == 0){
689
avahi_simple_poll_quit(mc->simple_poll);
643
exit(EXIT_SUCCESS);
690
644
}
691
645
}
692
646
}
704
658
flags,
705
659
void* userdata) {
706
660
mandos_context *mc = userdata;
707
assert(b);
661
assert(b); /* Spurious warning */
708
662
709
663
/* Called whenever a new services becomes available on the LAN or
710
664
is removed from the LAN */
746
700
747
701
/* Combines file name and path and returns the malloced new
748
702
string. some sane checks could/should be added */
749
static char *combinepath(const char *first, const char *second){
750
char *tmp;
751
int ret = asprintf(&tmp, "%s/%s", first, second);
752
if(ret < 0){
703
static const char *combinepath(const char *first, const char *second){
704
size_t f_len = strlen(first);
705
size_t s_len = strlen(second);
706
char *tmp = malloc(f_len + s_len + 2);
707
if (tmp == NULL){
753
708
return NULL;
754
709
}
710
if(f_len > 0){
711
memcpy(tmp, first, f_len); /* Spurious warning */
712
}
713
tmp[f_len] = '/';
714
if(s_len > 0){
715
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
716
}
717
tmp[f_len + 1 + s_len] = '\0';
755
718
return tmp;
756
719
}
757
720
768
731
gid_t gid;
769
732
char *connect_to = NULL;
770
733
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
771
char *pubkeyfilename = NULL;
772
char *seckeyfilename = NULL;
773
const char *pubkeyname = "pubkey.txt";
774
const char *seckeyname = "seckey.txt";
775
734
mandos_context mc = { .simple_poll = NULL, .server = NULL,
776
.dh_bits = 1024, .priority = "SECURE256"
777
":!CTYPE-X.509:+CTYPE-OPENPGP" };
778
bool gnutls_initalized = false;
735
.dh_bits = 1024, .priority = "SECURE256"};
779
736
780
737
{
781
struct argp_option options[] = {
782
{ .name = "debug", .key = 128,
783
.doc = "Debug mode", .group = 3 },
784
{ .name = "connect", .key = 'c',
785
.arg = "ADDRESS:PORT",
786
.doc = "Connect directly to a specific Mandos server",
787
.group = 1 },
788
{ .name = "interface", .key = 'i',
789
.arg = "NAME",
790
.doc = "Interface that will be used to search for Mandos"
791
" servers",
792
.group = 1 },
793
{ .name = "keydir", .key = 'd',
794
.arg = "DIRECTORY",
795
.doc = "Directory to read the OpenPGP key files from",
796
.group = 1 },
797
{ .name = "seckey", .key = 's',
798
.arg = "FILE",
799
.doc = "OpenPGP secret key file base name",
800
.group = 1 },
801
{ .name = "pubkey", .key = 'p',
802
.arg = "FILE",
803
.doc = "OpenPGP public key file base name",
804
.group = 2 },
805
{ .name = "dh-bits", .key = 129,
806
.arg = "BITS",
807
.doc = "Bit length of the prime number used in the"
808
" Diffie-Hellman key exchange",
809
.group = 2 },
810
{ .name = "priority", .key = 130,
811
.arg = "STRING",
812
.doc = "GnuTLS priority string for the TLS handshake",
813
.group = 1 },
814
{ .name = NULL }
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: /* --debug */
823
debug = true;
824
break;
825
case 'c': /* --connect */
826
connect_to = arg;
827
break;
828
case 'i': /* --interface */
829
interface = arg;
830
break;
831
case 'd': /* --keydir */
832
keydir = arg;
833
break;
834
case 's': /* --seckey */
835
seckeyname = arg;
836
break;
837
case 'p': /* --pubkey */
838
pubkeyname = arg;
839
break;
840
case 129: /* --dh-bits */
738
/* Temporary int to get the address of for getopt_long */
739
int debug_int = debug ? 1 : 0;
740
while (true){
741
struct option long_options[] = {
742
{"debug", no_argument, &debug_int, 1},
743
{"connect", required_argument, NULL, 'c'},
744
{"interface", required_argument, NULL, 'i'},
745
{"keydir", required_argument, NULL, 'd'},
746
{"seckey", required_argument, NULL, 's'},
747
{"pubkey", required_argument, NULL, 'p'},
748
{"dh-bits", required_argument, NULL, 'D'},
749
{"priority", required_argument, NULL, 'P'},
750
{0, 0, 0, 0} };
751
752
int option_index = 0;
753
ret = getopt_long (argc, argv, "i:", long_options,
754
&option_index);
755
756
if (ret == -1){
757
break;
758
}
759
760
switch(ret){
761
case 0:
762
break;
763
case 'i':
764
interface = optarg;
765
break;
766
case 'c':
767
connect_to = optarg;
768
break;
769
case 'd':
770
keydir = optarg;
771
break;
772
case 'p':
773
pubkeyfile = optarg;
774
break;
775
case 's':
776
seckeyfile = optarg;
777
break;
778
case 'D':
841
779
errno = 0;
842
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
780
mc.dh_bits = (unsigned int) strtol(optarg, NULL, 10);
843
781
if (errno){
844
782
perror("strtol");
845
783
exit(EXIT_FAILURE);
846
784
}
847
785
break;
848
case 130: /* --priority */
849
mc.priority = arg;
850
break;
851
case ARGP_KEY_ARG:
852
argp_usage (state);
853
case ARGP_KEY_END:
854
break;
786
case 'P':
787
mc.priority = optarg;
788
break;
789
case '?':
855
790
default:
856
return ARGP_ERR_UNKNOWN;
791
/* getopt_long() has already printed a message about the
792
unrcognized option, so just exit. */
793
exit(EXIT_FAILURE);
857
794
}
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 a 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
pubkeyfilename = combinepath(keydir, pubkeyname);
874
if (pubkeyfilename == NULL){
875
perror("combinepath");
876
exitcode = EXIT_FAILURE;
877
goto end;
878
}
879
880
seckeyfilename = combinepath(keydir, seckeyname);
881
if (seckeyfilename == NULL){
882
perror("combinepath");
883
exitcode = EXIT_FAILURE;
884
goto end;
885
}
886
887
ret = init_gnutls_global(&mc, pubkeyfilename, seckeyfilename);
795
}
796
/* Set the global debug flag from the temporary int */
797
debug = debug_int ? true : false;
798
}
799
800
pubkeyfile = combinepath(keydir, pubkeyfile);
801
if (pubkeyfile == NULL){
802
perror("combinepath");
803
exitcode = EXIT_FAILURE;
804
goto end;
805
}
806
807
seckeyfile = combinepath(keydir, seckeyfile);
808
if (seckeyfile == NULL){
809
perror("combinepath");
810
goto end;
811
}
812
813
ret = init_gnutls_global(&mc);
888
814
if (ret == -1){
889
fprintf(stderr, "init_gnutls_global failed\n");
890
exitcode = EXIT_FAILURE;
815
fprintf(stderr, "init_gnutls_global\n");
891
816
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);
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
817
}
818
923
819
uid = getuid();
924
820
gid = getgid();
925
821
926
822
ret = setuid(uid);
927
823
if (ret == -1){
928
824
perror("setuid");
966
862
goto end;
967
863
}
968
864
865
/* If the interface is down, bring it up */
866
{
867
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
868
if(sd < 0) {
869
perror("socket");
870
exitcode = EXIT_FAILURE;
871
goto end;
872
}
873
strcpy(network.ifr_name, interface); /* Spurious warning */
874
ret = ioctl(sd, SIOCGIFFLAGS, &network);
875
if(ret == -1){
876
perror("ioctl SIOCGIFFLAGS");
877
exitcode = EXIT_FAILURE;
878
goto end;
879
}
880
if((network.ifr_flags & IFF_UP) == 0){
881
network.ifr_flags |= IFF_UP;
882
ret = ioctl(sd, SIOCSIFFLAGS, &network);
883
if(ret == -1){
884
perror("ioctl SIOCSIFFLAGS");
885
exitcode = EXIT_FAILURE;
886
goto end;
887
}
888
}
889
close(sd);
890
}
891
969
892
if (not debug){
970
893
avahi_set_log_function(empty_log);
971
894
}
981
904
exitcode = EXIT_FAILURE;
982
905
goto end;
983
906
}
984
907
985
908
{
986
909
AvahiServerConfig config;
987
910
/* Do not publish any local Zeroconf records */
990
913
config.publish_addresses = 0;
991
914
config.publish_workstation = 0;
992
915
config.publish_domain = 0;
993
916
994
917
/* Allocate a new server */
995
918
mc.server = avahi_server_new(avahi_simple_poll_get
996
919
(mc.simple_poll), &config, NULL,
997
920
NULL, &error);
998
921
999
922
/* Free the Avahi configuration data */
1000
923
avahi_server_config_free(&config);
1001
924
}
1021
944
}
1022
945
1023
946
/* Run the main loop */
1024
947
1025
948
if (debug){
1026
949
fprintf(stderr, "Starting Avahi loop search\n");
1027
950
}
1029
952
avahi_simple_poll_loop(mc.simple_poll);
1030
953
1031
954
end:
1032
955
1033
956
if (debug){
1034
957
fprintf(stderr, "%s exiting\n", argv[0]);
1035
958
}
1040
963
1041
964
if (mc.server != NULL)
1042
965
avahi_server_free(mc.server);
1043
966
1044
967
if (mc.simple_poll != NULL)
1045
968
avahi_simple_poll_free(mc.simple_poll);
1046
free(pubkeyfilename);
1047
free(seckeyfilename);
1048
1049
if (gnutls_initalized){
1050
gnutls_certificate_free_credentials(mc.cred);
1051
gnutls_global_deinit ();
1052
}
969
free(pubkeyfile);
970
free(seckeyfile);
1053
971
1054
972
return exitcode;
1055
973
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0