2 * Copyright (c) 1997 - 2005 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"
39 #define __attribute__(X)
41 #ifndef HEIMDAL_SMALLER
43 /* keep this for compatibility with older code */
44 krb5_error_code KRB5_LIB_FUNCTION __attribute__((deprecated))
45 krb5_free_creds_contents (krb5_context context, krb5_creds *c)
47 return krb5_free_cred_contents (context, c);
50 #endif /* HEIMDAL_SMALLER */
53 * Free content of krb5_creds.
55 * @param context Kerberos 5 context.
56 * @param c krb5_creds to free.
58 * @return Returns 0 to indicate success. Otherwise an kerberos et
59 * error code is returned, see krb5_get_error_message().
64 krb5_error_code KRB5_LIB_FUNCTION
65 krb5_free_cred_contents (krb5_context context, krb5_creds *c)
67 krb5_free_principal (context, c->client);
69 krb5_free_principal (context, c->server);
71 krb5_free_keyblock_contents (context, &c->session);
72 krb5_data_free (&c->ticket);
73 krb5_data_free (&c->second_ticket);
74 free_AuthorizationData (&c->authdata);
75 krb5_free_addresses (context, &c->addresses);
76 memset(c, 0, sizeof(*c));
81 * Copy content of krb5_creds.
83 * @param context Kerberos 5 context.
84 * @param incred source credential
85 * @param c destination credential, free with krb5_free_cred_contents().
87 * @return Returns 0 to indicate success. Otherwise an kerberos et
88 * error code is returned, see krb5_get_error_message().
93 krb5_error_code KRB5_LIB_FUNCTION
94 krb5_copy_creds_contents (krb5_context context,
95 const krb5_creds *incred,
100 memset(c, 0, sizeof(*c));
101 ret = krb5_copy_principal (context, incred->client, &c->client);
104 ret = krb5_copy_principal (context, incred->server, &c->server);
107 ret = krb5_copy_keyblock_contents (context, &incred->session, &c->session);
110 c->times = incred->times;
111 ret = krb5_data_copy (&c->ticket,
113 incred->ticket.length);
116 ret = krb5_data_copy (&c->second_ticket,
117 incred->second_ticket.data,
118 incred->second_ticket.length);
121 ret = copy_AuthorizationData(&incred->authdata, &c->authdata);
124 ret = krb5_copy_addresses (context,
129 c->flags = incred->flags;
133 krb5_free_cred_contents (context, c);
140 * @param context Kerberos 5 context.
141 * @param incred source credential
142 * @param outcred destination credential, free with krb5_free_creds().
144 * @return Returns 0 to indicate success. Otherwise an kerberos et
145 * error code is returned, see krb5_get_error_message().
150 krb5_error_code KRB5_LIB_FUNCTION
151 krb5_copy_creds (krb5_context context,
152 const krb5_creds *incred,
153 krb5_creds **outcred)
157 c = malloc (sizeof (*c));
159 krb5_set_error_message (context, ENOMEM, "malloc: out of memory");
162 memset (c, 0, sizeof(*c));
164 return krb5_copy_creds_contents (context, incred, c);
170 * @param context Kerberos 5 context.
171 * @param c krb5_creds to free.
173 * @return Returns 0 to indicate success. Otherwise an kerberos et
174 * error code is returned, see krb5_get_error_message().
179 krb5_error_code KRB5_LIB_FUNCTION
180 krb5_free_creds (krb5_context context, krb5_creds *c)
182 krb5_free_cred_contents (context, c);
187 /* XXX this do not belong here */
189 krb5_times_equal(const krb5_times *a, const krb5_times *b)
191 return a->starttime == b->starttime &&
192 a->authtime == b->authtime &&
193 a->endtime == b->endtime &&
194 a->renew_till == b->renew_till;
198 * Return TRUE if `mcreds' and `creds' are equal (`whichfields'
199 * determines what equal means).
201 * @param context Kerberos 5 context.
202 * @param whichfields which fields to compare.
203 * @param mcreds cred to compare with.
204 * @param creds cred to compare with.
206 * @return return TRUE if mcred and creds are equal, FALSE if not.
211 krb5_boolean KRB5_LIB_FUNCTION
212 krb5_compare_creds(krb5_context context, krb5_flags whichfields,
213 const krb5_creds * mcreds, const krb5_creds * creds)
215 krb5_boolean match = TRUE;
217 if (match && mcreds->server) {
218 if (whichfields & (KRB5_TC_DONT_MATCH_REALM | KRB5_TC_MATCH_SRV_NAMEONLY))
219 match = krb5_principal_compare_any_realm (context, mcreds->server,
222 match = krb5_principal_compare (context, mcreds->server,
226 if (match && mcreds->client) {
227 if(whichfields & KRB5_TC_DONT_MATCH_REALM)
228 match = krb5_principal_compare_any_realm (context, mcreds->client,
231 match = krb5_principal_compare (context, mcreds->client,
235 if (match && (whichfields & KRB5_TC_MATCH_KEYTYPE))
236 match = krb5_enctypes_compatible_keys(context,
237 mcreds->session.keytype,
238 creds->session.keytype);
240 if (match && (whichfields & KRB5_TC_MATCH_FLAGS_EXACT))
241 match = mcreds->flags.i == creds->flags.i;
243 if (match && (whichfields & KRB5_TC_MATCH_FLAGS))
244 match = (creds->flags.i & mcreds->flags.i) == mcreds->flags.i;
246 if (match && (whichfields & KRB5_TC_MATCH_TIMES_EXACT))
247 match = krb5_times_equal(&mcreds->times, &creds->times);
249 if (match && (whichfields & KRB5_TC_MATCH_TIMES))
250 /* compare only expiration times */
251 match = (mcreds->times.renew_till <= creds->times.renew_till) &&
252 (mcreds->times.endtime <= creds->times.endtime);
254 if (match && (whichfields & KRB5_TC_MATCH_AUTHDATA)) {
256 if(mcreds->authdata.len != creds->authdata.len)
259 for(i = 0; match && i < mcreds->authdata.len; i++)
260 match = (mcreds->authdata.val[i].ad_type ==
261 creds->authdata.val[i].ad_type) &&
262 (krb5_data_cmp(&mcreds->authdata.val[i].ad_data,
263 &creds->authdata.val[i].ad_data) == 0);
265 if (match && (whichfields & KRB5_TC_MATCH_2ND_TKT))
266 match = (krb5_data_cmp(&mcreds->second_ticket, &creds->second_ticket) == 0);
268 if (match && (whichfields & KRB5_TC_MATCH_IS_SKEY))
269 match = ((mcreds->second_ticket.length == 0) ==
270 (creds->second_ticket.length == 0));