/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
1
/*  -*- coding: utf-8 -*- */
2
/*
261 by Teddy Hogeborn
* plugins.d/askpass-fifo.c: Fix name in header.
3
 * Mandos-client - get and decrypt data from a Mandos server
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
4
 *
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
 * 
28 by Teddy Hogeborn
* server.conf: New file.
11
 * Everything else is
246 by Teddy Hogeborn
* README: Update copyright year; add "2009".
12
 * Copyright © 2008,2009 Teddy Hogeborn
13
 * Copyright © 2008,2009 Björn Påhlsson
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
14
 * 
15
 * This program is free software: you can redistribute it and/or
16
 * modify it under the terms of the GNU General Public License as
17
 * published by the Free Software Foundation, either version 3 of the
18
 * License, or (at your option) any later version.
19
 * 
20
 * This program is distributed in the hope that it will be useful, but
21
 * WITHOUT ANY WARRANTY; without even the implied warranty of
22
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
23
 * General Public License for more details.
24
 * 
25
 * You should have received a copy of the GNU General Public License
26
 * along with this program.  If not, see
27
 * <http://www.gnu.org/licenses/>.
28
 * 
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
29
 * Contact the authors at <mandos@fukt.bsnet.se>.
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
30
 */
31
28 by Teddy Hogeborn
* server.conf: New file.
32
/* Needed by GPGME, specifically gpgme_data_seek() */
13 by Björn Påhlsson
Added following support:
33
#define _LARGEFILE_SOURCE
34
#define _FILE_OFFSET_BITS 64
35
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
36
#define _GNU_SOURCE		/* TEMP_FAILURE_RETRY(), asprintf() */
24.1.10 by Björn Påhlsson
merge commit
37
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
38
#include <stdio.h>		/* fprintf(), stderr, fwrite(),
285 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Use remove() instead of unlink(),
39
				   stdout, ferror(), sscanf(),
40
				   remove() */
24.1.26 by Björn Påhlsson
tally count of used symbols
41
#include <stdint.h> 		/* uint16_t, uint32_t */
42
#include <stddef.h>		/* NULL, size_t, ssize_t */
24.1.29 by Björn Påhlsson
Added more header file comments
43
#include <stdlib.h> 		/* free(), EXIT_SUCCESS, EXIT_FAILURE,
44
				   srand() */
304 by Teddy Hogeborn
Four new interrelated features:
45
#include <stdbool.h>		/* bool, false, true */
24.1.29 by Björn Påhlsson
Added more header file comments
46
#include <string.h>		/* memset(), strcmp(), strlen(),
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
47
				   strerror(), asprintf(), strcpy() */
304 by Teddy Hogeborn
Four new interrelated features:
48
#include <sys/ioctl.h>		/* ioctl */
24.1.26 by Björn Påhlsson
tally count of used symbols
49
#include <sys/types.h>		/* socket(), inet_pton(), sockaddr,
24.1.29 by Björn Påhlsson
Added more header file comments
50
				   sockaddr_in6, PF_INET6,
304 by Teddy Hogeborn
Four new interrelated features:
51
				   SOCK_STREAM, uid_t, gid_t, open(),
52
				   opendir(), DIR */
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
53
#include <sys/stat.h>		/* open() */
24.1.26 by Björn Påhlsson
tally count of used symbols
54
#include <sys/socket.h>		/* socket(), struct sockaddr_in6,
304 by Teddy Hogeborn
Four new interrelated features:
55
				   inet_pton(), connect() */
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
56
#include <fcntl.h>		/* open() */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
57
#include <dirent.h>		/* opendir(), struct dirent, readdir()
58
				 */
268 by Teddy Hogeborn
Fixes for sscanf usage:
59
#include <inttypes.h>		/* PRIu16, intmax_t, SCNdMAX */
24.1.29 by Björn Påhlsson
Added more header file comments
60
#include <assert.h>		/* assert() */
61
#include <errno.h>		/* perror(), errno */
291 by Teddy Hogeborn
Merge from Björn:
62
#include <time.h>		/* nanosleep(), time() */
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
63
#include <net/if.h>		/* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
24.1.26 by Björn Påhlsson
tally count of used symbols
64
				   SIOCSIFFLAGS, if_indextoname(),
65
				   if_nametoindex(), IF_NAMESIZE */
304 by Teddy Hogeborn
Four new interrelated features:
66
#include <netinet/in.h>		/* IN6_IS_ADDR_LINKLOCAL,
67
				   INET_ADDRSTRLEN, INET6_ADDRSTRLEN
68
				*/
24.1.29 by Björn Påhlsson
Added more header file comments
69
#include <unistd.h>		/* close(), SEEK_SET, off_t, write(),
70
				   getuid(), getgid(), setuid(),
71
				   setgid() */
24.1.26 by Björn Påhlsson
tally count of used symbols
72
#include <arpa/inet.h>		/* inet_pton(), htons */
304 by Teddy Hogeborn
Four new interrelated features:
73
#include <iso646.h>		/* not, or, and */
24.1.29 by Björn Påhlsson
Added more header file comments
74
#include <argp.h>		/* struct argp_option, error_t, struct
75
				   argp_state, struct argp,
76
				   argp_parse(), ARGP_KEY_ARG,
77
				   ARGP_KEY_END, ARGP_ERR_UNKNOWN */
307 by Teddy Hogeborn
Merge from Björn:
78
#include <signal.h>		/* sigemptyset(), sigaddset(),
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
79
				   sigaction(), SIGTERM, sigaction,
80
				   sig_atomic_t */
307 by Teddy Hogeborn
Merge from Björn:
81
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
82
#ifdef __linux__
24.1.124 by Björn Påhlsson
Added lower kernel loglevel to reduce clutter on system console.
83
#include <sys/klog.h> 		/* klogctl() */
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
84
#endif	/* __linux__ */
24.1.26 by Björn Påhlsson
tally count of used symbols
85
86
/* Avahi */
24.1.29 by Björn Påhlsson
Added more header file comments
87
/* All Avahi types, constants and functions
88
 Avahi*, avahi_*,
89
 AVAHI_* */
90
#include <avahi-core/core.h>
24.1.26 by Björn Påhlsson
tally count of used symbols
91
#include <avahi-core/lookup.h>
24.1.29 by Björn Påhlsson
Added more header file comments
92
#include <avahi-core/log.h>
24.1.26 by Björn Påhlsson
tally count of used symbols
93
#include <avahi-common/simple-watch.h>
94
#include <avahi-common/malloc.h>
95
#include <avahi-common/error.h>
96
97
/* GnuTLS */
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
98
#include <gnutls/gnutls.h>	/* All GnuTLS types, constants and
99
				   functions:
24.1.29 by Björn Påhlsson
Added more header file comments
100
				   gnutls_*
24.1.26 by Björn Påhlsson
tally count of used symbols
101
				   init_gnutls_session(),
24.1.29 by Björn Påhlsson
Added more header file comments
102
				   GNUTLS_* */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
103
#include <gnutls/openpgp.h>
104
			  /* gnutls_certificate_set_openpgp_key_file(),
24.1.29 by Björn Påhlsson
Added more header file comments
105
				   GNUTLS_OPENPGP_FMT_BASE64 */
24.1.26 by Björn Påhlsson
tally count of used symbols
106
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
107
/* GPGME */
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
108
#include <gpgme.h> 		/* All GPGME types, constants and
109
				   functions:
24.1.29 by Björn Påhlsson
Added more header file comments
110
				   gpgme_*
24.1.26 by Björn Påhlsson
tally count of used symbols
111
				   GPGME_PROTOCOL_OpenPGP,
24.1.29 by Björn Påhlsson
Added more header file comments
112
				   GPG_ERR_NO_* */
13 by Björn Påhlsson
Added following support:
113
114
#define BUFFER_SIZE 256
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
115
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
116
#define PATHDIR "/conf/conf.d/mandos"
117
#define SECKEY "seckey.txt"
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
118
#define PUBKEY "pubkey.txt"
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
119
15.1.2 by Björn Påhlsson
Added debug options from passprompt as --debug and --debug=passprompt
120
bool debug = false;
43 by Teddy Hogeborn
* plugins.d/mandosclient.c: Cosmetic changes.
121
static const char mandos_protocol_version[] = "1";
217 by Teddy Hogeborn
* .bzrignore: Added "man" directory (created by "make install-html").
122
const char *argp_program_version = "mandos-client " VERSION;
24.1.14 by Björn Påhlsson
mandosclient
123
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
24.1.10 by Björn Påhlsson
merge commit
124
42 by Teddy Hogeborn
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
125
/* Used for passing in values through the Avahi callback functions */
13 by Björn Påhlsson
Added following support:
126
typedef struct {
24.1.9 by Björn Påhlsson
not working midwork...
127
  AvahiSimplePoll *simple_poll;
128
  AvahiServer *server;
13 by Björn Påhlsson
Added following support:
129
  gnutls_certificate_credentials_t cred;
24.1.9 by Björn Påhlsson
not working midwork...
130
  unsigned int dh_bits;
24.1.13 by Björn Påhlsson
mandosclient
131
  gnutls_dh_params_t dh_params;
24.1.9 by Björn Påhlsson
not working midwork...
132
  const char *priority;
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
133
  gpgme_ctx_t ctx;
24.1.9 by Björn Påhlsson
not working midwork...
134
} mandos_context;
13 by Björn Påhlsson
Added following support:
135
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
136
/* global context so signal handler can reach it*/
24.1.135 by Björn Påhlsson
Earlier signal handling
137
mandos_context mc = { .simple_poll = NULL, .server = NULL,
138
		      .dh_bits = 1024, .priority = "SECURE256"
139
		      ":!CTYPE-X.509:+CTYPE-OPENPGP" };
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
140
43 by Teddy Hogeborn
* plugins.d/mandosclient.c: Cosmetic changes.
141
/*
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
142
 * Make additional room in "buffer" for at least BUFFER_SIZE more
143
 * bytes. "buffer_capacity" is how much is currently allocated,
144
 * "buffer_length" is how much is already used.
43 by Teddy Hogeborn
* plugins.d/mandosclient.c: Cosmetic changes.
145
 */
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
146
size_t incbuffer(char **buffer, size_t buffer_length,
24.1.10 by Björn Påhlsson
merge commit
147
		  size_t buffer_capacity){
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
148
  if(buffer_length + BUFFER_SIZE > buffer_capacity){
24.1.12 by Björn Påhlsson
merge +
149
    *buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
150
    if(buffer == NULL){
24.1.10 by Björn Påhlsson
merge commit
151
      return 0;
152
    }
153
    buffer_capacity += BUFFER_SIZE;
154
  }
155
  return buffer_capacity;
156
}
157
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
158
/* 
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
159
 * Initialize GPGME.
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
160
 */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
161
static bool init_gpgme(const char *seckey,
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
162
		       const char *pubkey, const char *tempdir){
163
  int ret;
13 by Björn Påhlsson
Added following support:
164
  gpgme_error_t rc;
165
  gpgme_engine_info_t engine_info;
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
166
  
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
167
  
168
  /*
288 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Use separate bool variable instead
169
   * Helper function to insert pub and seckey to the engine keyring.
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
170
   */
171
  bool import_key(const char *filename){
172
    int fd;
173
    gpgme_data_t pgp_data;
174
    
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
175
    fd = (int)TEMP_FAILURE_RETRY(open(filename, O_RDONLY));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
176
    if(fd == -1){
177
      perror("open");
178
      return false;
179
    }
180
    
181
    rc = gpgme_data_new_from_fd(&pgp_data, fd);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
182
    if(rc != GPG_ERR_NO_ERROR){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
183
      fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
184
	      gpgme_strsource(rc), gpgme_strerror(rc));
185
      return false;
186
    }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
187
    
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
188
    rc = gpgme_op_import(mc.ctx, pgp_data);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
189
    if(rc != GPG_ERR_NO_ERROR){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
190
      fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
191
	      gpgme_strsource(rc), gpgme_strerror(rc));
192
      return false;
193
    }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
194
    
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
195
    ret = (int)TEMP_FAILURE_RETRY(close(fd));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
196
    if(ret == -1){
197
      perror("close");
198
    }
199
    gpgme_data_release(pgp_data);
200
    return true;
201
  }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
202
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
203
  if(debug){
307 by Teddy Hogeborn
Merge from Björn:
204
    fprintf(stderr, "Initializing GPGME\n");
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
205
  }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
206
  
13 by Björn Påhlsson
Added following support:
207
  /* Init GPGME */
208
  gpgme_check_version(NULL);
24.1.4 by Björn Påhlsson
Added optional parameters certdir, certkey and certfile that can be iven at start in the command line.
209
  rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
210
  if(rc != GPG_ERR_NO_ERROR){
24.1.4 by Björn Påhlsson
Added optional parameters certdir, certkey and certfile that can be iven at start in the command line.
211
    fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
212
	    gpgme_strsource(rc), gpgme_strerror(rc));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
213
    return false;
24.1.4 by Björn Påhlsson
Added optional parameters certdir, certkey and certfile that can be iven at start in the command line.
214
  }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
215
  
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
216
    /* Set GPGME home directory for the OpenPGP engine only */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
217
  rc = gpgme_get_engine_info(&engine_info);
218
  if(rc != GPG_ERR_NO_ERROR){
13 by Björn Påhlsson
Added following support:
219
    fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
220
	    gpgme_strsource(rc), gpgme_strerror(rc));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
221
    return false;
13 by Björn Påhlsson
Added following support:
222
  }
223
  while(engine_info != NULL){
224
    if(engine_info->protocol == GPGME_PROTOCOL_OpenPGP){
225
      gpgme_set_engine_info(GPGME_PROTOCOL_OpenPGP,
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
226
			    engine_info->file_name, tempdir);
13 by Björn Påhlsson
Added following support:
227
      break;
228
    }
229
    engine_info = engine_info->next;
230
  }
231
  if(engine_info == NULL){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
232
    fprintf(stderr, "Could not set GPGME home dir to %s\n", tempdir);
233
    return false;
234
  }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
235
  
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
236
  /* Create new GPGME "context" */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
237
  rc = gpgme_new(&(mc.ctx));
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
238
  if(rc != GPG_ERR_NO_ERROR){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
239
    fprintf(stderr, "bad gpgme_new: %s: %s\n",
240
	    gpgme_strsource(rc), gpgme_strerror(rc));
241
    return false;
242
  }
243
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
244
  if(not import_key(pubkey) or not import_key(seckey)){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
245
    return false;
246
  }
247
  
248
  return true; 
249
}
250
251
/* 
252
 * Decrypt OpenPGP data.
253
 * Returns -1 on error
254
 */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
255
static ssize_t pgp_packet_decrypt(const char *cryptotext,
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
256
				  size_t crypto_size,
257
				  char **plaintext){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
258
  gpgme_data_t dh_crypto, dh_plain;
259
  gpgme_error_t rc;
260
  ssize_t ret;
261
  size_t plaintext_capacity = 0;
262
  ssize_t plaintext_length = 0;
263
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
264
  if(debug){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
265
    fprintf(stderr, "Trying to decrypt OpenPGP data\n");
13 by Björn Påhlsson
Added following support:
266
  }
267
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
268
  /* Create new GPGME data buffer from memory cryptotext */
269
  rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
270
			       0);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
271
  if(rc != GPG_ERR_NO_ERROR){
13 by Björn Påhlsson
Added following support:
272
    fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
273
	    gpgme_strsource(rc), gpgme_strerror(rc));
274
    return -1;
275
  }
276
  
277
  /* Create new empty GPGME data buffer for the plaintext */
278
  rc = gpgme_data_new(&dh_plain);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
279
  if(rc != GPG_ERR_NO_ERROR){
13 by Björn Påhlsson
Added following support:
280
    fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
281
	    gpgme_strsource(rc), gpgme_strerror(rc));
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
282
    gpgme_data_release(dh_crypto);
13 by Björn Påhlsson
Added following support:
283
    return -1;
284
  }
285
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
286
  /* Decrypt data from the cryptotext data buffer to the plaintext
287
     data buffer */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
288
  rc = gpgme_op_decrypt(mc.ctx, dh_crypto, dh_plain);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
289
  if(rc != GPG_ERR_NO_ERROR){
13 by Björn Påhlsson
Added following support:
290
    fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
291
	    gpgme_strsource(rc), gpgme_strerror(rc));
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
292
    plaintext_length = -1;
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
293
    if(debug){
99 by Teddy Hogeborn
* mandos (fingerprint): Bug fix: Check crtverify.value, not crtverify.
294
      gpgme_decrypt_result_t result;
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
295
      result = gpgme_op_decrypt_result(mc.ctx);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
296
      if(result == NULL){
99 by Teddy Hogeborn
* mandos (fingerprint): Bug fix: Check crtverify.value, not crtverify.
297
	fprintf(stderr, "gpgme_op_decrypt_result failed\n");
298
      } else {
299
	fprintf(stderr, "Unsupported algorithm: %s\n",
300
		result->unsupported_algorithm);
301
	fprintf(stderr, "Wrong key usage: %u\n",
302
		result->wrong_key_usage);
303
	if(result->file_name != NULL){
304
	  fprintf(stderr, "File name: %s\n", result->file_name);
305
	}
306
	gpgme_recipient_t recipient;
307
	recipient = result->recipients;
308
	if(recipient){
309
	  while(recipient != NULL){
310
	    fprintf(stderr, "Public key algorithm: %s\n",
311
		    gpgme_pubkey_algo_name(recipient->pubkey_algo));
312
	    fprintf(stderr, "Key ID: %s\n", recipient->keyid);
313
	    fprintf(stderr, "Secret key available: %s\n",
314
		    recipient->status == GPG_ERR_NO_SECKEY
315
		    ? "No" : "Yes");
316
	    recipient = recipient->next;
317
	  }
318
	}
319
      }
320
    }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
321
    goto decrypt_end;
13 by Björn Påhlsson
Added following support:
322
  }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
323
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
324
  if(debug){
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
325
    fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
326
  }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
327
  
13 by Björn Påhlsson
Added following support:
328
  /* Seek back to the beginning of the GPGME plaintext data buffer */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
329
  if(gpgme_data_seek(dh_plain, (off_t)0, SEEK_SET) == -1){
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
330
    perror("gpgme_data_seek");
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
331
    plaintext_length = -1;
332
    goto decrypt_end;
24.1.5 by Björn Påhlsson
plugbasedclient:
333
  }
334
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
335
  *plaintext = NULL;
13 by Björn Påhlsson
Added following support:
336
  while(true){
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
337
    plaintext_capacity = incbuffer(plaintext,
42 by Teddy Hogeborn
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
338
				      (size_t)plaintext_length,
24.1.12 by Björn Påhlsson
merge +
339
				      plaintext_capacity);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
340
    if(plaintext_capacity == 0){
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
341
	perror("incbuffer");
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
342
	plaintext_length = -1;
343
	goto decrypt_end;
13 by Björn Påhlsson
Added following support:
344
    }
345
    
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
346
    ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
347
			  BUFFER_SIZE);
13 by Björn Påhlsson
Added following support:
348
    /* Print the data, if any */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
349
    if(ret == 0){
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
350
      /* EOF */
13 by Björn Påhlsson
Added following support:
351
      break;
352
    }
353
    if(ret < 0){
354
      perror("gpgme_data_read");
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
355
      plaintext_length = -1;
356
      goto decrypt_end;
13 by Björn Påhlsson
Added following support:
357
    }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
358
    plaintext_length += ret;
13 by Björn Påhlsson
Added following support:
359
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
360
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
361
  if(debug){
362
    fprintf(stderr, "Decrypted password is: ");
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
363
    for(ssize_t i = 0; i < plaintext_length; i++){
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
364
      fprintf(stderr, "%02hhX ", (*plaintext)[i]);
365
    }
366
    fprintf(stderr, "\n");
367
  }
368
  
369
 decrypt_end:
370
  
371
  /* Delete the GPGME cryptotext data buffer */
372
  gpgme_data_release(dh_crypto);
15.1.3 by Björn Påhlsson
Added getopt_long support for mandosclient and passprompt
373
  
374
  /* Delete the GPGME plaintext data buffer */
13 by Björn Påhlsson
Added following support:
375
  gpgme_data_release(dh_plain);
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
376
  return plaintext_length;
13 by Björn Påhlsson
Added following support:
377
}
378
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
379
static const char * safer_gnutls_strerror(int value){
267 by Teddy Hogeborn
* plugins.d/mandos-client.c: Only comment changes.
380
  const char *ret = gnutls_strerror(value); /* Spurious warning from
381
					       -Wunreachable-code */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
382
  if(ret == NULL)
13 by Björn Påhlsson
Added following support:
383
    ret = "(unknown)";
384
  return ret;
385
}
386
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
387
/* GnuTLS log function callback */
36 by Teddy Hogeborn
* TODO: Converted to org-mode style
388
static void debuggnutls(__attribute__((unused)) int level,
389
			const char* string){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
390
  fprintf(stderr, "GnuTLS: %s", string);
13 by Björn Påhlsson
Added following support:
391
}
392
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
393
static int init_gnutls_global(const char *pubkeyfilename,
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
394
			      const char *seckeyfilename){
13 by Björn Påhlsson
Added following support:
395
  int ret;
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
396
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
397
  if(debug){
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
398
    fprintf(stderr, "Initializing GnuTLS\n");
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
399
  }
24.1.29 by Björn Påhlsson
Added more header file comments
400
  
401
  ret = gnutls_global_init();
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
402
  if(ret != GNUTLS_E_SUCCESS){
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
403
    fprintf(stderr, "GnuTLS global_init: %s\n",
404
	    safer_gnutls_strerror(ret));
13 by Björn Påhlsson
Added following support:
405
    return -1;
406
  }
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
407
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
408
  if(debug){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
409
    /* "Use a log level over 10 to enable all debugging options."
410
     * - GnuTLS manual
411
     */
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
412
    gnutls_global_set_log_level(11);
413
    gnutls_global_set_log_function(debuggnutls);
414
  }
415
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
416
  /* OpenPGP credentials */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
417
  gnutls_certificate_allocate_credentials(&mc.cred);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
418
  if(ret != GNUTLS_E_SUCCESS){
267 by Teddy Hogeborn
* plugins.d/mandos-client.c: Only comment changes.
419
    fprintf(stderr, "GnuTLS memory error: %s\n", /* Spurious warning
304 by Teddy Hogeborn
Four new interrelated features:
420
						    from
421
						    -Wunreachable-code
422
						 */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
423
	    safer_gnutls_strerror(ret));
424
    gnutls_global_deinit();
13 by Björn Påhlsson
Added following support:
425
    return -1;
426
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
427
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
428
  if(debug){
147 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Improved wording
429
    fprintf(stderr, "Attempting to use OpenPGP public key %s and"
430
	    " secret key %s as GnuTLS credentials\n", pubkeyfilename,
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
431
	    seckeyfilename);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
432
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
433
  
13 by Björn Påhlsson
Added following support:
434
  ret = gnutls_certificate_set_openpgp_key_file
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
435
    (mc.cred, pubkeyfilename, seckeyfilename,
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
436
     GNUTLS_OPENPGP_FMT_BASE64);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
437
  if(ret != GNUTLS_E_SUCCESS){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
438
    fprintf(stderr,
439
	    "Error[%d] while reading the OpenPGP key pair ('%s',"
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
440
	    " '%s')\n", ret, pubkeyfilename, seckeyfilename);
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
441
    fprintf(stderr, "The GnuTLS error is: %s\n",
13 by Björn Påhlsson
Added following support:
442
	    safer_gnutls_strerror(ret));
24.1.20 by Björn Påhlsson
mandosclient
443
    goto globalfail;
13 by Björn Påhlsson
Added following support:
444
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
445
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
446
  /* GnuTLS server initialization */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
447
  ret = gnutls_dh_params_init(&mc.dh_params);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
448
  if(ret != GNUTLS_E_SUCCESS){
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
449
    fprintf(stderr, "Error in GnuTLS DH parameter initialization:"
450
	    " %s\n", safer_gnutls_strerror(ret));
24.1.20 by Björn Påhlsson
mandosclient
451
    goto globalfail;
13 by Björn Påhlsson
Added following support:
452
  }
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
453
  ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
454
  if(ret != GNUTLS_E_SUCCESS){
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
455
    fprintf(stderr, "Error in GnuTLS prime generation: %s\n",
456
	    safer_gnutls_strerror(ret));
24.1.20 by Björn Påhlsson
mandosclient
457
    goto globalfail;
13 by Björn Påhlsson
Added following support:
458
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
459
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
460
  gnutls_certificate_set_dh_params(mc.cred, mc.dh_params);
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
461
  
24.1.13 by Björn Påhlsson
mandosclient
462
  return 0;
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
463
  
24.1.20 by Björn Påhlsson
mandosclient
464
 globalfail:
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
465
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
466
  gnutls_certificate_free_credentials(mc.cred);
24.1.26 by Björn Påhlsson
tally count of used symbols
467
  gnutls_global_deinit();
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
468
  gnutls_dh_params_deinit(mc.dh_params);
24.1.20 by Björn Påhlsson
mandosclient
469
  return -1;
24.1.13 by Björn Påhlsson
mandosclient
470
}
471
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
472
static int init_gnutls_session(gnutls_session_t *session){
24.1.13 by Björn Påhlsson
mandosclient
473
  int ret;
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
474
  /* GnuTLS session creation */
475
  ret = gnutls_init(session, GNUTLS_SERVER);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
476
  if(ret != GNUTLS_E_SUCCESS){
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
477
    fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
13 by Björn Påhlsson
Added following support:
478
	    safer_gnutls_strerror(ret));
479
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
480
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
481
  {
482
    const char *err;
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
483
    ret = gnutls_priority_set_direct(*session, mc.priority, &err);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
484
    if(ret != GNUTLS_E_SUCCESS){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
485
      fprintf(stderr, "Syntax error at: %s\n", err);
486
      fprintf(stderr, "GnuTLS error: %s\n",
487
	      safer_gnutls_strerror(ret));
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
488
      gnutls_deinit(*session);
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
489
      return -1;
490
    }
13 by Björn Påhlsson
Added following support:
491
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
492
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
493
  ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
494
			       mc.cred);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
495
  if(ret != GNUTLS_E_SUCCESS){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
496
    fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
13 by Björn Påhlsson
Added following support:
497
	    safer_gnutls_strerror(ret));
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
498
    gnutls_deinit(*session);
13 by Björn Påhlsson
Added following support:
499
    return -1;
500
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
501
  
13 by Björn Påhlsson
Added following support:
502
  /* ignore client certificate if any. */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
503
  gnutls_certificate_server_set_request(*session,
504
					GNUTLS_CERT_IGNORE);
13 by Björn Påhlsson
Added following support:
505
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
506
  gnutls_dh_set_prime_bits(*session, mc.dh_bits);
13 by Björn Påhlsson
Added following support:
507
  
508
  return 0;
509
}
510
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
511
/* Avahi log function callback */
36 by Teddy Hogeborn
* TODO: Converted to org-mode style
512
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
513
		      __attribute__((unused)) const char *txt){}
13 by Björn Påhlsson
Added following support:
514
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
515
/* Called when a Mandos server is found */
36 by Teddy Hogeborn
* TODO: Converted to org-mode style
516
static int start_mandos_communication(const char *ip, uint16_t port,
24.1.9 by Björn Påhlsson
not working midwork...
517
				      AvahiIfIndex if_index,
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
518
				      int af){
13 by Björn Påhlsson
Added following support:
519
  int ret, tcp_sd;
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
520
  ssize_t sret;
304 by Teddy Hogeborn
Four new interrelated features:
521
  union {
522
    struct sockaddr_in in;
523
    struct sockaddr_in6 in6;
524
  } to;
13 by Björn Påhlsson
Added following support:
525
  char *buffer = NULL;
526
  char *decrypted_buffer;
527
  size_t buffer_length = 0;
528
  size_t buffer_capacity = 0;
529
  ssize_t decrypted_buffer_size;
24.1.10 by Björn Påhlsson
merge commit
530
  size_t written;
13 by Björn Påhlsson
Added following support:
531
  int retval = 0;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
532
  gnutls_session_t session;
304 by Teddy Hogeborn
Four new interrelated features:
533
  int pf;			/* Protocol family */
534
  
535
  switch(af){
536
  case AF_INET6:
537
    pf = PF_INET6;
538
    break;
539
  case AF_INET:
540
    pf = PF_INET;
541
    break;
542
  default:
543
    fprintf(stderr, "Bad address family: %d\n", af);
544
    return -1;
545
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
546
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
547
  ret = init_gnutls_session(&session);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
548
  if(ret != 0){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
549
    return -1;
550
  }
551
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
552
  if(debug){
304 by Teddy Hogeborn
Four new interrelated features:
553
    fprintf(stderr, "Setting up a TCP connection to %s, port %" PRIu16
60 by Teddy Hogeborn
* mandos-client.c (main): Cast pid_t to unsigned int before printing.
554
	    "\n", ip, port);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
555
  }
13 by Björn Påhlsson
Added following support:
556
  
304 by Teddy Hogeborn
Four new interrelated features:
557
  tcp_sd = socket(pf, SOCK_STREAM, 0);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
558
  if(tcp_sd < 0){
13 by Björn Påhlsson
Added following support:
559
    perror("socket");
560
    return -1;
561
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
562
  
84 by Teddy Hogeborn
* Makefile (DOCBOOKTOMAN): Use the local manpages/docbook.xsl file, do
563
  memset(&to, 0, sizeof(to));
304 by Teddy Hogeborn
Four new interrelated features:
564
  if(af == AF_INET6){
565
    to.in6.sin6_family = (uint16_t)af;
566
    ret = inet_pton(af, ip, &to.in6.sin6_addr);
567
  } else {			/* IPv4 */
568
    to.in.sin_family = (sa_family_t)af;
569
    ret = inet_pton(af, ip, &to.in.sin_addr);
570
  }
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
571
  if(ret < 0 ){
13 by Björn Påhlsson
Added following support:
572
    perror("inet_pton");
573
    return -1;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
574
  }
13 by Björn Påhlsson
Added following support:
575
  if(ret == 0){
576
    fprintf(stderr, "Bad address: %s\n", ip);
577
    return -1;
578
  }
304 by Teddy Hogeborn
Four new interrelated features:
579
  if(af == AF_INET6){
580
    to.in6.sin6_port = htons(port); /* Spurious warnings from
581
				       -Wconversion and
582
				       -Wunreachable-code */
583
    
584
    if(IN6_IS_ADDR_LINKLOCAL /* Spurious warnings from */
585
       (&to.in6.sin6_addr)){ /* -Wstrict-aliasing=2 or lower and
586
			      -Wunreachable-code*/
587
      if(if_index == AVAHI_IF_UNSPEC){
588
	fprintf(stderr, "An IPv6 link-local address is incomplete"
589
		" without a network interface\n");
590
	return -1;
591
      }
592
      /* Set the network interface number as scope */
593
      to.in6.sin6_scope_id = (uint32_t)if_index;
594
    }
595
  } else {
596
    to.in.sin_port = htons(port); /* Spurious warnings from
267 by Teddy Hogeborn
* plugins.d/mandos-client.c: Only comment changes.
597
				     -Wconversion and
598
				     -Wunreachable-code */
304 by Teddy Hogeborn
Four new interrelated features:
599
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
600
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
601
  if(debug){
304 by Teddy Hogeborn
Four new interrelated features:
602
    if(af == AF_INET6 and if_index != AVAHI_IF_UNSPEC){
603
      char interface[IF_NAMESIZE];
604
      if(if_indextoname((unsigned int)if_index, interface) == NULL){
605
	perror("if_indextoname");
606
      } else {
607
	fprintf(stderr, "Connection to: %s%%%s, port %" PRIu16 "\n",
608
		ip, interface, port);
609
      }
610
    } else {
611
      fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
612
	      port);
613
    }
614
    char addrstr[(INET_ADDRSTRLEN > INET6_ADDRSTRLEN) ?
615
		 INET_ADDRSTRLEN : INET6_ADDRSTRLEN] = "";
616
    const char *pcret;
617
    if(af == AF_INET6){
618
      pcret = inet_ntop(af, &(to.in6.sin6_addr), addrstr,
619
			sizeof(addrstr));
620
    } else {
621
      pcret = inet_ntop(af, &(to.in.sin_addr), addrstr,
622
			sizeof(addrstr));
623
    }
624
    if(pcret == NULL){
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
625
      perror("inet_ntop");
626
    } else {
627
      if(strcmp(addrstr, ip) != 0){
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
628
	fprintf(stderr, "Canonical address form: %s\n", addrstr);
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
629
      }
630
    }
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
631
  }
13 by Björn Påhlsson
Added following support:
632
  
304 by Teddy Hogeborn
Four new interrelated features:
633
  if(af == AF_INET6){
634
    ret = connect(tcp_sd, &to.in6, sizeof(to));
635
  } else {
636
    ret = connect(tcp_sd, &to.in, sizeof(to)); /* IPv4 */
637
  }
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
638
  if(ret < 0){
13 by Björn Påhlsson
Added following support:
639
    perror("connect");
640
    return -1;
641
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
642
  
24.1.12 by Björn Påhlsson
merge +
643
  const char *out = mandos_protocol_version;
24.1.10 by Björn Påhlsson
merge commit
644
  written = 0;
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
645
  while(true){
24.1.10 by Björn Påhlsson
merge commit
646
    size_t out_size = strlen(out);
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
647
    ret = (int)TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
24.1.10 by Björn Påhlsson
merge commit
648
				   out_size - written));
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
649
    if(ret == -1){
24.1.10 by Björn Påhlsson
merge commit
650
      perror("write");
651
      retval = -1;
24.1.12 by Björn Påhlsson
merge +
652
      goto mandos_end;
24.1.10 by Björn Påhlsson
merge commit
653
    }
24.1.12 by Björn Påhlsson
merge +
654
    written += (size_t)ret;
24.1.10 by Björn Påhlsson
merge commit
655
    if(written < out_size){
656
      continue;
657
    } else {
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
658
      if(out == mandos_protocol_version){
24.1.10 by Björn Påhlsson
merge commit
659
	written = 0;
660
	out = "\r\n";
661
      } else {
662
	break;
663
      }
664
    }
665
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
666
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
667
  if(debug){
668
    fprintf(stderr, "Establishing TLS session with %s\n", ip);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
669
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
670
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
671
  gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) tcp_sd);
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
672
  
24.1.29 by Björn Påhlsson
Added more header file comments
673
  do{
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
674
    ret = gnutls_handshake(session);
24.1.29 by Björn Påhlsson
Added more header file comments
675
  } while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
13 by Björn Påhlsson
Added following support:
676
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
677
  if(ret != GNUTLS_E_SUCCESS){
25 by Teddy Hogeborn
* mandos-clients.conf ([DEFAULT]): New section.
678
    if(debug){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
679
      fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
680
      gnutls_perror(ret);
25 by Teddy Hogeborn
* mandos-clients.conf ([DEFAULT]): New section.
681
    }
13 by Björn Påhlsson
Added following support:
682
    retval = -1;
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
683
    goto mandos_end;
13 by Björn Påhlsson
Added following support:
684
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
685
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
686
  /* Read OpenPGP packet that contains the wanted password */
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
687
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
688
  if(debug){
304 by Teddy Hogeborn
Four new interrelated features:
689
    fprintf(stderr, "Retrieving OpenPGP encrypted password from %s\n",
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
690
	    ip);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
691
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
692
  
13 by Björn Påhlsson
Added following support:
693
  while(true){
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
694
    buffer_capacity = incbuffer(&buffer, buffer_length,
42 by Teddy Hogeborn
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
695
				   buffer_capacity);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
696
    if(buffer_capacity == 0){
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
697
      perror("incbuffer");
24.1.10 by Björn Påhlsson
merge commit
698
      retval = -1;
24.1.12 by Björn Påhlsson
merge +
699
      goto mandos_end;
13 by Björn Påhlsson
Added following support:
700
    }
701
    
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
702
    sret = gnutls_record_recv(session, buffer+buffer_length,
703
			      BUFFER_SIZE);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
704
    if(sret == 0){
13 by Björn Påhlsson
Added following support:
705
      break;
706
    }
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
707
    if(sret < 0){
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
708
      switch(sret){
13 by Björn Påhlsson
Added following support:
709
      case GNUTLS_E_INTERRUPTED:
710
      case GNUTLS_E_AGAIN:
711
	break;
712
      case GNUTLS_E_REHANDSHAKE:
24.1.29 by Björn Påhlsson
Added more header file comments
713
	do{
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
714
	  ret = gnutls_handshake(session);
24.1.29 by Björn Påhlsson
Added more header file comments
715
	} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
716
	if(ret < 0){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
717
	  fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
718
	  gnutls_perror(ret);
13 by Björn Påhlsson
Added following support:
719
	  retval = -1;
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
720
	  goto mandos_end;
13 by Björn Påhlsson
Added following support:
721
	}
722
	break;
723
      default:
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
724
	fprintf(stderr, "Unknown error while reading data from"
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
725
		" encrypted session with Mandos server\n");
13 by Björn Påhlsson
Added following support:
726
	retval = -1;
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
727
	gnutls_bye(session, GNUTLS_SHUT_RDWR);
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
728
	goto mandos_end;
13 by Björn Påhlsson
Added following support:
729
      }
730
    } else {
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
731
      buffer_length += (size_t) sret;
13 by Björn Påhlsson
Added following support:
732
    }
733
  }
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
734
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
735
  if(debug){
736
    fprintf(stderr, "Closing TLS session\n");
737
  }
738
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
739
  gnutls_bye(session, GNUTLS_SHUT_RDWR);
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
740
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
741
  if(buffer_length > 0){
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
742
    decrypted_buffer_size = pgp_packet_decrypt(buffer,
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
743
					       buffer_length,
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
744
					       &decrypted_buffer);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
745
    if(decrypted_buffer_size >= 0){
24.1.10 by Björn Påhlsson
merge commit
746
      written = 0;
28 by Teddy Hogeborn
* server.conf: New file.
747
      while(written < (size_t) decrypted_buffer_size){
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
748
	ret = (int)fwrite(decrypted_buffer + written, 1,
749
			  (size_t)decrypted_buffer_size - written,
750
			  stdout);
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
751
	if(ret == 0 and ferror(stdout)){
752
	  if(debug){
753
	    fprintf(stderr, "Error writing encrypted data: %s\n",
754
		    strerror(errno));
755
	  }
756
	  retval = -1;
757
	  break;
758
	}
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
759
	written += (size_t)ret;
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
760
      }
13 by Björn Påhlsson
Added following support:
761
      free(decrypted_buffer);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
762
    } else {
763
      retval = -1;
13 by Björn Påhlsson
Added following support:
764
    }
24.1.63 by Björn Påhlsson
merge + fallback bugg
765
  } else {
766
    retval = -1;
13 by Björn Påhlsson
Added following support:
767
  }
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
768
  
769
  /* Shutdown procedure */
770
  
771
 mandos_end:
13 by Björn Påhlsson
Added following support:
772
  free(buffer);
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
773
  ret = (int)TEMP_FAILURE_RETRY(close(tcp_sd));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
774
  if(ret == -1){
775
    perror("close");
776
  }
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
777
  gnutls_deinit(session);
13 by Björn Påhlsson
Added following support:
778
  return retval;
779
}
780
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
781
static void resolve_callback(AvahiSServiceResolver *r,
782
			     AvahiIfIndex interface,
304 by Teddy Hogeborn
Four new interrelated features:
783
			     AvahiProtocol proto,
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
784
			     AvahiResolverEvent event,
785
			     const char *name,
786
			     const char *type,
787
			     const char *domain,
788
			     const char *host_name,
789
			     const AvahiAddress *address,
790
			     uint16_t port,
791
			     AVAHI_GCC_UNUSED AvahiStringList *txt,
792
			     AVAHI_GCC_UNUSED AvahiLookupResultFlags
793
			     flags,
307 by Teddy Hogeborn
Merge from Björn:
794
			     AVAHI_GCC_UNUSED void* userdata){
84 by Teddy Hogeborn
* Makefile (DOCBOOKTOMAN): Use the local manpages/docbook.xsl file, do
795
  assert(r);
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
796
  
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
797
  /* Called whenever a service has been resolved successfully or
798
     timed out */
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
799
  
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
800
  switch(event){
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
801
  default:
802
  case AVAHI_RESOLVER_FAILURE:
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
803
    fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
804
	    " of type '%s' in domain '%s': %s\n", name, type, domain,
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
805
	    avahi_strerror(avahi_server_errno(mc.server)));
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
806
    break;
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
807
    
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
808
  case AVAHI_RESOLVER_FOUND:
809
    {
810
      char ip[AVAHI_ADDRESS_STR_MAX];
811
      avahi_address_snprint(ip, sizeof(ip), address);
812
      if(debug){
60 by Teddy Hogeborn
* mandos-client.c (main): Cast pid_t to unsigned int before printing.
813
	fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
268 by Teddy Hogeborn
Fixes for sscanf usage:
814
		PRIdMAX ") on port %" PRIu16 "\n", name, host_name,
815
		ip, (intmax_t)interface, port);
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
816
      }
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
817
      int ret = start_mandos_communication(ip, port, interface,
304 by Teddy Hogeborn
Four new interrelated features:
818
					   avahi_proto_to_af(proto));
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
819
      if(ret == 0){
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
820
	avahi_simple_poll_quit(mc.simple_poll);
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
821
      }
13 by Björn Påhlsson
Added following support:
822
    }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
823
  }
824
  avahi_s_service_resolver_free(r);
13 by Björn Påhlsson
Added following support:
825
}
826
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
827
static void browse_callback(AvahiSServiceBrowser *b,
828
			    AvahiIfIndex interface,
829
			    AvahiProtocol protocol,
830
			    AvahiBrowserEvent event,
831
			    const char *name,
832
			    const char *type,
833
			    const char *domain,
834
			    AVAHI_GCC_UNUSED AvahiLookupResultFlags
835
			    flags,
307 by Teddy Hogeborn
Merge from Björn:
836
			    AVAHI_GCC_UNUSED void* userdata){
84 by Teddy Hogeborn
* Makefile (DOCBOOKTOMAN): Use the local manpages/docbook.xsl file, do
837
  assert(b);
24.1.9 by Björn Påhlsson
not working midwork...
838
  
839
  /* Called whenever a new services becomes available on the LAN or
840
     is removed from the LAN */
841
  
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
842
  switch(event){
24.1.9 by Björn Påhlsson
not working midwork...
843
  default:
844
  case AVAHI_BROWSER_FAILURE:
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
845
    
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
846
    fprintf(stderr, "(Avahi browser) %s\n",
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
847
	    avahi_strerror(avahi_server_errno(mc.server)));
848
    avahi_simple_poll_quit(mc.simple_poll);
24.1.9 by Björn Påhlsson
not working midwork...
849
    return;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
850
    
24.1.9 by Björn Påhlsson
not working midwork...
851
  case AVAHI_BROWSER_NEW:
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
852
    /* We ignore the returned Avahi resolver object. In the callback
853
       function we free it. If the Avahi server is terminated before
854
       the callback function is called the Avahi server will free the
855
       resolver for us. */
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
856
    
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
857
    if(!(avahi_s_service_resolver_new(mc.server, interface,
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
858
				       protocol, name, type, domain,
24.1.9 by Björn Påhlsson
not working midwork...
859
				       AVAHI_PROTO_INET6, 0,
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
860
				       resolve_callback, NULL)))
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
861
      fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
862
	      name, avahi_strerror(avahi_server_errno(mc.server)));
24.1.9 by Björn Påhlsson
not working midwork...
863
    break;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
864
    
24.1.9 by Björn Påhlsson
not working midwork...
865
  case AVAHI_BROWSER_REMOVE:
866
    break;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
867
    
24.1.9 by Björn Påhlsson
not working midwork...
868
  case AVAHI_BROWSER_ALL_FOR_NOW:
869
  case AVAHI_BROWSER_CACHE_EXHAUSTED:
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
870
    if(debug){
871
      fprintf(stderr, "No Mandos server found, still searching...\n");
872
    }
24.1.9 by Björn Påhlsson
not working midwork...
873
    break;
874
  }
13 by Björn Påhlsson
Added following support:
875
}
876
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
877
sig_atomic_t quit_now = 0;
878
24.1.135 by Björn Påhlsson
Earlier signal handling
879
/* stop main loop after sigterm has been called */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
880
static void handle_sigterm(__attribute__((unused)) int sig){
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
881
  if(quit_now){
882
    return;
883
  }
884
  quit_now = 1;
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
885
  int old_errno = errno;
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
886
  if(mc.simple_poll != NULL){
887
    avahi_simple_poll_quit(mc.simple_poll);
888
  }
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
889
  errno = old_errno;
890
}
891
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
892
int main(int argc, char *argv[]){
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
893
  AvahiSServiceBrowser *sb = NULL;
894
  int error;
895
  int ret;
896
  intmax_t tmpmax;
897
  int numchars;
898
  int exitcode = EXIT_SUCCESS;
899
  const char *interface = "eth0";
900
  struct ifreq network;
901
  int sd;
902
  uid_t uid;
903
  gid_t gid;
904
  char *connect_to = NULL;
905
  char tempdir[] = "/tmp/mandosXXXXXX";
906
  bool tempdir_created = false;
907
  AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
908
  const char *seckey = PATHDIR "/" SECKEY;
909
  const char *pubkey = PATHDIR "/" PUBKEY;
910
  
307 by Teddy Hogeborn
Merge from Björn:
911
  /* Initialize Mandos context */
912
  mc = (mandos_context){ .simple_poll = NULL, .server = NULL,
913
			 .dh_bits = 1024, .priority = "SECURE256"
914
			 ":!CTYPE-X.509:+CTYPE-OPENPGP" };
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
915
  bool gnutls_initialized = false;
916
  bool gpgme_initialized = false;
917
  double delay = 2.5;
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
918
919
  struct sigaction old_sigterm_action;
920
  struct sigaction sigterm_action = { .sa_handler = handle_sigterm };
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
921
  
922
  {
923
    struct argp_option options[] = {
924
      { .name = "debug", .key = 128,
925
	.doc = "Debug mode", .group = 3 },
926
      { .name = "connect", .key = 'c',
927
	.arg = "ADDRESS:PORT",
928
	.doc = "Connect directly to a specific Mandos server",
929
	.group = 1 },
930
      { .name = "interface", .key = 'i',
931
	.arg = "NAME",
304 by Teddy Hogeborn
Four new interrelated features:
932
	.doc = "Network interface that will be used to search for"
933
	" Mandos servers",
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
934
	.group = 1 },
935
      { .name = "seckey", .key = 's',
936
	.arg = "FILE",
937
	.doc = "OpenPGP secret key file base name",
938
	.group = 1 },
939
      { .name = "pubkey", .key = 'p',
940
	.arg = "FILE",
941
	.doc = "OpenPGP public key file base name",
942
	.group = 2 },
943
      { .name = "dh-bits", .key = 129,
944
	.arg = "BITS",
945
	.doc = "Bit length of the prime number used in the"
946
	" Diffie-Hellman key exchange",
947
	.group = 2 },
948
      { .name = "priority", .key = 130,
949
	.arg = "STRING",
950
	.doc = "GnuTLS priority string for the TLS handshake",
951
	.group = 1 },
952
      { .name = "delay", .key = 131,
953
	.arg = "SECONDS",
954
	.doc = "Maximum delay to wait for interface startup",
955
	.group = 2 },
956
      { .name = NULL }
957
    };
958
    
959
    error_t parse_opt(int key, char *arg,
960
		      struct argp_state *state){
961
      switch(key){
962
      case 128:			/* --debug */
963
	debug = true;
964
	break;
965
      case 'c':			/* --connect */
966
	connect_to = arg;
967
	break;
968
      case 'i':			/* --interface */
969
	interface = arg;
970
	break;
971
      case 's':			/* --seckey */
972
	seckey = arg;
973
	break;
974
      case 'p':			/* --pubkey */
975
	pubkey = arg;
976
	break;
977
      case 129:			/* --dh-bits */
978
	ret = sscanf(arg, "%" SCNdMAX "%n", &tmpmax, &numchars);
979
	if(ret < 1 or tmpmax != (typeof(mc.dh_bits))tmpmax
980
	   or arg[numchars] != '\0'){
981
	  fprintf(stderr, "Bad number of DH bits\n");
982
	  exit(EXIT_FAILURE);
983
	}
984
	mc.dh_bits = (typeof(mc.dh_bits))tmpmax;
985
	break;
986
      case 130:			/* --priority */
987
	mc.priority = arg;
988
	break;
989
      case 131:			/* --delay */
990
	ret = sscanf(arg, "%lf%n", &delay, &numchars);
991
	if(ret < 1 or arg[numchars] != '\0'){
992
	  fprintf(stderr, "Bad delay\n");
993
	  exit(EXIT_FAILURE);
994
	}
995
	break;
996
      case ARGP_KEY_ARG:
997
	argp_usage(state);
998
      case ARGP_KEY_END:
999
	break;
1000
      default:
1001
	return ARGP_ERR_UNKNOWN;
1002
      }
1003
      return 0;
1004
    }
1005
    
1006
    struct argp argp = { .options = options, .parser = parse_opt,
1007
			 .args_doc = "",
1008
			 .doc = "Mandos client -- Get and decrypt"
1009
			 " passwords from a Mandos server" };
1010
    ret = argp_parse(&argp, argc, argv, 0, 0, NULL);
1011
    if(ret == ARGP_ERR_UNKNOWN){
1012
      fprintf(stderr, "Unknown error while parsing arguments\n");
1013
      exitcode = EXIT_FAILURE;
1014
      goto end;
1015
    }
1016
  }
1017
  
24.1.135 by Björn Påhlsson
Earlier signal handling
1018
  if(not debug){
1019
    avahi_set_log_function(empty_log);
1020
  }
309 by Teddy Hogeborn
Merge from Björn:
1021
  
24.1.135 by Björn Påhlsson
Earlier signal handling
1022
  /* Initialize Avahi early so avahi_simple_poll_quit() can be called
1023
     from the signal handler */
1024
  /* Initialize the pseudo-RNG for Avahi */
1025
  srand((unsigned int) time(NULL));
1026
  mc.simple_poll = avahi_simple_poll_new();
1027
  if(mc.simple_poll == NULL){
1028
    fprintf(stderr, "Avahi: Failed to create simple poll object.\n");
1029
    exitcode = EXIT_FAILURE;
1030
    goto end;
1031
  }
309 by Teddy Hogeborn
Merge from Björn:
1032
  
24.1.135 by Björn Påhlsson
Earlier signal handling
1033
  sigemptyset(&sigterm_action.sa_mask);
309 by Teddy Hogeborn
Merge from Björn:
1034
  ret = sigaddset(&sigterm_action.sa_mask, SIGINT);
1035
  if(ret == -1){
1036
    perror("sigaddset");
1037
    exitcode = EXIT_FAILURE;
1038
    goto end;
1039
  }
1040
  ret = sigaddset(&sigterm_action.sa_mask, SIGHUP);
1041
  if(ret == -1){
1042
    perror("sigaddset");
1043
    exitcode = EXIT_FAILURE;
1044
    goto end;
1045
  }
24.1.135 by Björn Påhlsson
Earlier signal handling
1046
  ret = sigaddset(&sigterm_action.sa_mask, SIGTERM);
1047
  if(ret == -1){
1048
    perror("sigaddset");
1049
    exitcode = EXIT_FAILURE;
1050
    goto end;
1051
  }
1052
  ret = sigaction(SIGTERM, &sigterm_action, &old_sigterm_action);
1053
  if(ret == -1){
1054
    perror("sigaction");
1055
    exitcode = EXIT_FAILURE;
1056
    goto end;
1057
  }  
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1058
  
1059
  /* If the interface is down, bring it up */
304 by Teddy Hogeborn
Four new interrelated features:
1060
  if(interface[0] != '\0'){
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1061
#ifdef __linux__
1062
    /* Lower kernel loglevel to KERN_NOTICE to avoid KERN_INFO
1063
       messages to mess up the prompt */
1064
    ret = klogctl(8, NULL, 5);
304 by Teddy Hogeborn
Four new interrelated features:
1065
    bool restore_loglevel = true;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1066
    if(ret == -1){
304 by Teddy Hogeborn
Four new interrelated features:
1067
      restore_loglevel = false;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1068
      perror("klogctl");
1069
    }
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1070
#endif	/* __linux__ */
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1071
    
1072
    sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1073
    if(sd < 0){
1074
      perror("socket");
1075
      exitcode = EXIT_FAILURE;
1076
#ifdef __linux__
304 by Teddy Hogeborn
Four new interrelated features:
1077
      if(restore_loglevel){
1078
	ret = klogctl(7, NULL, 0);
1079
	if(ret == -1){
1080
	  perror("klogctl");
1081
	}
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1082
      }
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1083
#endif	/* __linux__ */
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1084
      goto end;
1085
    }
1086
    strcpy(network.ifr_name, interface);
1087
    ret = ioctl(sd, SIOCGIFFLAGS, &network);
1088
    if(ret == -1){
1089
      perror("ioctl SIOCGIFFLAGS");
1090
#ifdef __linux__
304 by Teddy Hogeborn
Four new interrelated features:
1091
      if(restore_loglevel){
1092
	ret = klogctl(7, NULL, 0);
1093
	if(ret == -1){
1094
	  perror("klogctl");
1095
	}
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1096
      }
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1097
#endif	/* __linux__ */
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1098
      exitcode = EXIT_FAILURE;
1099
      goto end;
1100
    }
1101
    if((network.ifr_flags & IFF_UP) == 0){
1102
      network.ifr_flags |= IFF_UP;
1103
      ret = ioctl(sd, SIOCSIFFLAGS, &network);
1104
      if(ret == -1){
1105
	perror("ioctl SIOCSIFFLAGS");
1106
	exitcode = EXIT_FAILURE;
1107
#ifdef __linux__
304 by Teddy Hogeborn
Four new interrelated features:
1108
	if(restore_loglevel){
1109
	  ret = klogctl(7, NULL, 0);
1110
	  if(ret == -1){
1111
	    perror("klogctl");
1112
	  }
24.1.124 by Björn Påhlsson
Added lower kernel loglevel to reduce clutter on system console.
1113
	}
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1114
#endif	/* __linux__ */
65 by Teddy Hogeborn
* plugins.d/password-request.c (main): Bug fix: Bring up network
1115
	goto end;
1116
      }
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1117
    }
1118
    /* sleep checking until interface is running */
1119
    for(int i=0; i < delay * 4; i++){
65 by Teddy Hogeborn
* plugins.d/password-request.c (main): Bug fix: Bring up network
1120
      ret = ioctl(sd, SIOCGIFFLAGS, &network);
1121
      if(ret == -1){
1122
	perror("ioctl SIOCGIFFLAGS");
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1123
      } else if(network.ifr_flags & IFF_RUNNING){
1124
	break;
1125
      }
1126
      struct timespec sleeptime = { .tv_nsec = 250000000 };
1127
      ret = nanosleep(&sleeptime, NULL);
1128
      if(ret == -1 and errno != EINTR){
1129
	perror("nanosleep");
1130
      }
1131
    }
1132
    ret = (int)TEMP_FAILURE_RETRY(close(sd));
1133
    if(ret == -1){
1134
      perror("close");
1135
    }
1136
#ifdef __linux__
304 by Teddy Hogeborn
Four new interrelated features:
1137
    if(restore_loglevel){
1138
      /* Restores kernel loglevel to default */
1139
      ret = klogctl(7, NULL, 0);
1140
      if(ret == -1){
1141
	perror("klogctl");
1142
      }
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1143
    }
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1144
#endif	/* __linux__ */
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1145
  }
1146
  
1147
  uid = getuid();
1148
  gid = getgid();
1149
  
304 by Teddy Hogeborn
Four new interrelated features:
1150
  errno = 0;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1151
  setgid(gid);
1152
  if(ret == -1){
1153
    perror("setgid");
1154
  }
1155
  
1156
  ret = setuid(uid);
1157
  if(ret == -1){
1158
    perror("setuid");
1159
  }
1160
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1161
  ret = init_gnutls_global(pubkey, seckey);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1162
  if(ret == -1){
1163
    fprintf(stderr, "init_gnutls_global failed\n");
1164
    exitcode = EXIT_FAILURE;
1165
    goto end;
1166
  } else {
1167
    gnutls_initialized = true;
1168
  }
1169
  
1170
  if(mkdtemp(tempdir) == NULL){
1171
    perror("mkdtemp");
1172
    goto end;
1173
  }
1174
  tempdir_created = true;
1175
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1176
  if(not init_gpgme(pubkey, seckey, tempdir)){
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1177
    fprintf(stderr, "init_gpgme failed\n");
1178
    exitcode = EXIT_FAILURE;
1179
    goto end;
1180
  } else {
1181
    gpgme_initialized = true;
1182
  }
1183
  
304 by Teddy Hogeborn
Four new interrelated features:
1184
  if(interface[0] != '\0'){
1185
    if_index = (AvahiIfIndex) if_nametoindex(interface);
1186
    if(if_index == 0){
1187
      fprintf(stderr, "No such interface: \"%s\"\n", interface);
1188
      exitcode = EXIT_FAILURE;
1189
      goto end;
1190
    }
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1191
  }
1192
  
1193
  if(connect_to != NULL){
1194
    /* Connect directly, do not use Zeroconf */
1195
    /* (Mainly meant for debugging) */
1196
    char *address = strrchr(connect_to, ':');
1197
    if(address == NULL){
1198
      fprintf(stderr, "No colon in address\n");
1199
      exitcode = EXIT_FAILURE;
1200
      goto end;
1201
    }
1202
    uint16_t port;
1203
    ret = sscanf(address+1, "%" SCNdMAX "%n", &tmpmax, &numchars);
1204
    if(ret < 1 or tmpmax != (uint16_t)tmpmax
1205
       or address[numchars+1] != '\0'){
1206
      fprintf(stderr, "Bad port number\n");
1207
      exitcode = EXIT_FAILURE;
1208
      goto end;
1209
    }
1210
    port = (uint16_t)tmpmax;
1211
    *address = '\0';
1212
    address = connect_to;
304 by Teddy Hogeborn
Four new interrelated features:
1213
    /* Colon in address indicates IPv6 */
1214
    int af;
1215
    if(strchr(address, ':') != NULL){
1216
      af = AF_INET6;
1217
    } else {
1218
      af = AF_INET;
1219
    }
307 by Teddy Hogeborn
Merge from Björn:
1220
    ret = start_mandos_communication(address, port, if_index, af);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1221
    if(ret < 0){
1222
      exitcode = EXIT_FAILURE;
1223
    } else {
1224
      exitcode = EXIT_SUCCESS;
1225
    }
1226
    goto end;
1227
  }
24.1.135 by Björn Påhlsson
Earlier signal handling
1228
    
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1229
  {
1230
    AvahiServerConfig config;
1231
    /* Do not publish any local Zeroconf records */
1232
    avahi_server_config_init(&config);
1233
    config.publish_hinfo = 0;
1234
    config.publish_addresses = 0;
1235
    config.publish_workstation = 0;
1236
    config.publish_domain = 0;
1237
    
1238
    /* Allocate a new server */
1239
    mc.server = avahi_server_new(avahi_simple_poll_get
1240
				 (mc.simple_poll), &config, NULL,
1241
				 NULL, &error);
1242
    
1243
    /* Free the Avahi configuration data */
1244
    avahi_server_config_free(&config);
1245
  }
1246
  
1247
  /* Check if creating the Avahi server object succeeded */
1248
  if(mc.server == NULL){
1249
    fprintf(stderr, "Failed to create Avahi server: %s\n",
1250
	    avahi_strerror(error));
1251
    exitcode = EXIT_FAILURE;
1252
    goto end;
1253
  }
1254
  
1255
  /* Create the Avahi service browser */
1256
  sb = avahi_s_service_browser_new(mc.server, if_index,
1257
				   AVAHI_PROTO_INET6, "_mandos._tcp",
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1258
				   NULL, 0, browse_callback, NULL);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1259
  if(sb == NULL){
1260
    fprintf(stderr, "Failed to create service browser: %s\n",
1261
	    avahi_strerror(avahi_server_errno(mc.server)));
1262
    exitcode = EXIT_FAILURE;
1263
    goto end;
1264
  }
307 by Teddy Hogeborn
Merge from Björn:
1265
  
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1266
  /* Run the main loop */
1267
  
1268
  if(debug){
1269
    fprintf(stderr, "Starting Avahi loop search\n");
1270
  }
1271
  
1272
  avahi_simple_poll_loop(mc.simple_poll);
1273
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
1274
 end:
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1275
  
1276
  if(debug){
1277
    fprintf(stderr, "%s exiting\n", argv[0]);
1278
  }
1279
  
1280
  /* Cleanup things */
1281
  if(sb != NULL)
1282
    avahi_s_service_browser_free(sb);
1283
  
1284
  if(mc.server != NULL)
1285
    avahi_server_free(mc.server);
1286
  
1287
  if(mc.simple_poll != NULL)
1288
    avahi_simple_poll_free(mc.simple_poll);
1289
  
1290
  if(gnutls_initialized){
1291
    gnutls_certificate_free_credentials(mc.cred);
1292
    gnutls_global_deinit();
1293
    gnutls_dh_params_deinit(mc.dh_params);
1294
  }
1295
  
1296
  if(gpgme_initialized){
1297
    gpgme_release(mc.ctx);
1298
  }
1299
  
1300
  /* Removes the temp directory used by GPGME */
1301
  if(tempdir_created){
1302
    DIR *d;
1303
    struct dirent *direntry;
1304
    d = opendir(tempdir);
1305
    if(d == NULL){
1306
      if(errno != ENOENT){
1307
	perror("opendir");
1308
      }
1309
    } else {
1310
      while(true){
1311
	direntry = readdir(d);
1312
	if(direntry == NULL){
1313
	  break;
1314
	}
1315
	/* Skip "." and ".." */
1316
	if(direntry->d_name[0] == '.'
1317
	   and (direntry->d_name[1] == '\0'
1318
		or (direntry->d_name[1] == '.'
1319
		    and direntry->d_name[2] == '\0'))){
1320
	  continue;
1321
	}
1322
	char *fullname = NULL;
1323
	ret = asprintf(&fullname, "%s/%s", tempdir,
1324
		       direntry->d_name);
1325
	if(ret < 0){
1326
	  perror("asprintf");
1327
	  continue;
1328
	}
1329
	ret = remove(fullname);
1330
	if(ret == -1){
1331
	  fprintf(stderr, "remove(\"%s\"): %s\n", fullname,
1332
		  strerror(errno));
1333
	}
1334
	free(fullname);
1335
      }
1336
      closedir(d);
1337
    }
1338
    ret = rmdir(tempdir);
1339
    if(ret == -1 and errno != ENOENT){
1340
      perror("rmdir");
1341
    }
1342
  }
1343
  
1344
  return exitcode;
13 by Björn Påhlsson
Added following support:
1345
}