2 * Copyright (c) 1997 - 2002 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include "krb5_locl.h"
36 RCSID("$Id: auth_context.c,v 1.59 2002/09/02 17:11:02 joda Exp $");
39 krb5_auth_con_init(krb5_context context,
40 krb5_auth_context *auth_context)
46 krb5_set_error_string(context, "malloc: out of memory");
49 memset(p, 0, sizeof(*p));
50 ALLOC(p->authenticator, 1);
51 if (!p->authenticator) {
52 krb5_set_error_string(context, "malloc: out of memory");
56 memset (p->authenticator, 0, sizeof(*p->authenticator));
57 p->flags = KRB5_AUTH_CONTEXT_DO_TIME;
59 p->local_address = NULL;
60 p->remote_address = NULL;
63 p->keytype = KEYTYPE_NULL;
64 p->cksumtype = CKSUMTYPE_NONE;
70 krb5_auth_con_free(krb5_context context,
71 krb5_auth_context auth_context)
73 if (auth_context != NULL) {
74 krb5_free_authenticator(context, &auth_context->authenticator);
75 if(auth_context->local_address){
76 free_HostAddress(auth_context->local_address);
77 free(auth_context->local_address);
79 if(auth_context->remote_address){
80 free_HostAddress(auth_context->remote_address);
81 free(auth_context->remote_address);
83 krb5_free_keyblock(context, auth_context->keyblock);
84 krb5_free_keyblock(context, auth_context->remote_subkey);
85 krb5_free_keyblock(context, auth_context->local_subkey);
92 krb5_auth_con_setflags(krb5_context context,
93 krb5_auth_context auth_context,
96 auth_context->flags = flags;
102 krb5_auth_con_getflags(krb5_context context,
103 krb5_auth_context auth_context,
106 *flags = auth_context->flags;
112 krb5_auth_con_setaddrs(krb5_context context,
113 krb5_auth_context auth_context,
114 krb5_address *local_addr,
115 krb5_address *remote_addr)
118 if (auth_context->local_address)
119 krb5_free_address (context, auth_context->local_address);
121 auth_context->local_address = malloc(sizeof(krb5_address));
122 krb5_copy_address(context, local_addr, auth_context->local_address);
125 if (auth_context->remote_address)
126 krb5_free_address (context, auth_context->remote_address);
128 auth_context->remote_address = malloc(sizeof(krb5_address));
129 krb5_copy_address(context, remote_addr, auth_context->remote_address);
135 krb5_auth_con_genaddrs(krb5_context context,
136 krb5_auth_context auth_context,
140 krb5_address local_k_address, remote_k_address;
141 krb5_address *lptr = NULL, *rptr = NULL;
142 struct sockaddr_storage ss_local, ss_remote;
143 struct sockaddr *local = (struct sockaddr *)&ss_local;
144 struct sockaddr *remote = (struct sockaddr *)&ss_remote;
147 if(flags & KRB5_AUTH_CONTEXT_GENERATE_LOCAL_ADDR) {
148 if (auth_context->local_address == NULL) {
149 len = sizeof(ss_local);
150 if(getsockname(fd, local, &len) < 0) {
152 krb5_set_error_string (context, "getsockname: %s",
156 ret = krb5_sockaddr2address (context, local, &local_k_address);
158 if(flags & KRB5_AUTH_CONTEXT_GENERATE_LOCAL_FULL_ADDR) {
159 krb5_sockaddr2port (context, local, &auth_context->local_port);
161 auth_context->local_port = 0;
162 lptr = &local_k_address;
165 if(flags & KRB5_AUTH_CONTEXT_GENERATE_REMOTE_ADDR) {
166 len = sizeof(ss_remote);
167 if(getpeername(fd, remote, &len) < 0) {
169 krb5_set_error_string (context, "getpeername: %s", strerror(ret));
172 ret = krb5_sockaddr2address (context, remote, &remote_k_address);
174 if(flags & KRB5_AUTH_CONTEXT_GENERATE_REMOTE_FULL_ADDR) {
175 krb5_sockaddr2port (context, remote, &auth_context->remote_port);
177 auth_context->remote_port = 0;
178 rptr = &remote_k_address;
180 ret = krb5_auth_con_setaddrs (context,
186 krb5_free_address (context, lptr);
188 krb5_free_address (context, rptr);
194 krb5_auth_con_setaddrs_from_fd (krb5_context context,
195 krb5_auth_context auth_context,
198 int fd = *(int*)p_fd;
200 if(auth_context->local_address == NULL)
201 flags |= KRB5_AUTH_CONTEXT_GENERATE_LOCAL_FULL_ADDR;
202 if(auth_context->remote_address == NULL)
203 flags |= KRB5_AUTH_CONTEXT_GENERATE_REMOTE_FULL_ADDR;
204 return krb5_auth_con_genaddrs(context, auth_context, fd, flags);
208 krb5_auth_con_getaddrs(krb5_context context,
209 krb5_auth_context auth_context,
210 krb5_address **local_addr,
211 krb5_address **remote_addr)
214 krb5_free_address (context, *local_addr);
215 *local_addr = malloc (sizeof(**local_addr));
216 if (*local_addr == NULL) {
217 krb5_set_error_string(context, "malloc: out of memory");
220 krb5_copy_address(context,
221 auth_context->local_address,
225 krb5_free_address (context, *remote_addr);
226 *remote_addr = malloc (sizeof(**remote_addr));
227 if (*remote_addr == NULL) {
228 krb5_set_error_string(context, "malloc: out of memory");
229 krb5_free_address (context, *local_addr);
233 krb5_copy_address(context,
234 auth_context->remote_address,
239 static krb5_error_code
240 copy_key(krb5_context context,
245 return krb5_copy_keyblock(context, in, out);
246 *out = NULL; /* is this right? */
251 krb5_auth_con_getkey(krb5_context context,
252 krb5_auth_context auth_context,
253 krb5_keyblock **keyblock)
255 return copy_key(context, auth_context->keyblock, keyblock);
259 krb5_auth_con_getlocalsubkey(krb5_context context,
260 krb5_auth_context auth_context,
261 krb5_keyblock **keyblock)
263 return copy_key(context, auth_context->local_subkey, keyblock);
267 krb5_auth_con_getremotesubkey(krb5_context context,
268 krb5_auth_context auth_context,
269 krb5_keyblock **keyblock)
271 return copy_key(context, auth_context->remote_subkey, keyblock);
275 krb5_auth_con_setkey(krb5_context context,
276 krb5_auth_context auth_context,
277 krb5_keyblock *keyblock)
279 if(auth_context->keyblock)
280 krb5_free_keyblock(context, auth_context->keyblock);
281 return copy_key(context, keyblock, &auth_context->keyblock);
285 krb5_auth_con_setlocalsubkey(krb5_context context,
286 krb5_auth_context auth_context,
287 krb5_keyblock *keyblock)
289 if(auth_context->local_subkey)
290 krb5_free_keyblock(context, auth_context->local_subkey);
291 return copy_key(context, keyblock, &auth_context->local_subkey);
295 krb5_auth_con_generatelocalsubkey(krb5_context context,
296 krb5_auth_context auth_context,
300 krb5_keyblock *subkey;
302 ret = krb5_generate_subkey (context, key, &subkey);
305 if(auth_context->local_subkey)
306 krb5_free_keyblock(context, auth_context->local_subkey);
307 auth_context->local_subkey = subkey;
313 krb5_auth_con_setremotesubkey(krb5_context context,
314 krb5_auth_context auth_context,
315 krb5_keyblock *keyblock)
317 if(auth_context->remote_subkey)
318 krb5_free_keyblock(context, auth_context->remote_subkey);
319 return copy_key(context, keyblock, &auth_context->remote_subkey);
323 krb5_auth_con_setcksumtype(krb5_context context,
324 krb5_auth_context auth_context,
325 krb5_cksumtype cksumtype)
327 auth_context->cksumtype = cksumtype;
332 krb5_auth_con_getcksumtype(krb5_context context,
333 krb5_auth_context auth_context,
334 krb5_cksumtype *cksumtype)
336 *cksumtype = auth_context->cksumtype;
341 krb5_auth_con_setkeytype (krb5_context context,
342 krb5_auth_context auth_context,
343 krb5_keytype keytype)
345 auth_context->keytype = keytype;
350 krb5_auth_con_getkeytype (krb5_context context,
351 krb5_auth_context auth_context,
352 krb5_keytype *keytype)
354 *keytype = auth_context->keytype;
360 krb5_auth_con_setenctype(krb5_context context,
361 krb5_auth_context auth_context,
364 if(auth_context->keyblock)
365 krb5_free_keyblock(context, auth_context->keyblock);
366 ALLOC(auth_context->keyblock, 1);
367 if(auth_context->keyblock == NULL)
369 auth_context->keyblock->keytype = etype;
374 krb5_auth_con_getenctype(krb5_context context,
375 krb5_auth_context auth_context,
378 krb5_abortx(context, "unimplemented krb5_auth_getenctype called");
383 krb5_auth_con_getlocalseqnumber(krb5_context context,
384 krb5_auth_context auth_context,
387 *seqnumber = auth_context->local_seqnumber;
392 krb5_auth_con_setlocalseqnumber (krb5_context context,
393 krb5_auth_context auth_context,
396 auth_context->local_seqnumber = seqnumber;
401 krb5_auth_getremoteseqnumber(krb5_context context,
402 krb5_auth_context auth_context,
405 *seqnumber = auth_context->remote_seqnumber;
410 krb5_auth_con_setremoteseqnumber (krb5_context context,
411 krb5_auth_context auth_context,
414 auth_context->remote_seqnumber = seqnumber;
420 krb5_auth_con_getauthenticator(krb5_context context,
421 krb5_auth_context auth_context,
422 krb5_authenticator *authenticator)
424 *authenticator = malloc(sizeof(**authenticator));
425 if (*authenticator == NULL) {
426 krb5_set_error_string(context, "malloc: out of memory");
430 copy_Authenticator(auth_context->authenticator,
437 krb5_free_authenticator(krb5_context context,
438 krb5_authenticator *authenticator)
440 free_Authenticator (*authenticator);
441 free (*authenticator);
442 *authenticator = NULL;
447 krb5_auth_con_setuserkey(krb5_context context,
448 krb5_auth_context auth_context,
449 krb5_keyblock *keyblock)
451 if(auth_context->keyblock)
452 krb5_free_keyblock(context, auth_context->keyblock);
453 return krb5_copy_keyblock(context, keyblock, &auth_context->keyblock);
457 krb5_auth_con_getrcache(krb5_context context,
458 krb5_auth_context auth_context,
461 *rcache = auth_context->rcache;
466 krb5_auth_con_setrcache(krb5_context context,
467 krb5_auth_context auth_context,
470 auth_context->rcache = rcache;
474 #if 0 /* not implemented */
477 krb5_auth_con_initivector(krb5_context context,
478 krb5_auth_context auth_context)
480 krb5_abortx(context, "unimplemented krb5_auth_con_initivector called");
485 krb5_auth_con_setivector(krb5_context context,
486 krb5_auth_context auth_context,
487 krb5_pointer ivector)
489 krb5_abortx(context, "unimplemented krb5_auth_con_setivector called");
492 #endif /* not implemented */