1 /* $NetBSD: get_s.c,v 1.1.1.2 2014/04/24 12:45:48 pettai Exp $ */
2
3 /*
4 * Copyright (c) 1997 - 2006 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "kadm5_locl.h"
37
38 __RCSID("NetBSD");
39
40 static kadm5_ret_t
add_tl_data(kadm5_principal_ent_t ent,int16_t type,const void * data,size_t size)41 add_tl_data(kadm5_principal_ent_t ent, int16_t type,
42 const void *data, size_t size)
43 {
44 krb5_tl_data *tl;
45
46 tl = calloc(1, sizeof(*tl));
47 if (tl == NULL)
48 return _kadm5_error_code(ENOMEM);
49
50 tl->tl_data_type = type;
51 tl->tl_data_length = size;
52 tl->tl_data_contents = malloc(size);
53 if (tl->tl_data_contents == NULL && size != 0) {
54 free(tl);
55 return _kadm5_error_code(ENOMEM);
56 }
57 memcpy(tl->tl_data_contents, data, size);
58
59 tl->tl_data_next = ent->tl_data;
60 ent->tl_data = tl;
61 ent->n_tl_data++;
62
63 return 0;
64 }
65
66 KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL
67 _krb5_put_int(void *buffer, unsigned long value, size_t size); /* XXX */
68
69 kadm5_ret_t
kadm5_s_get_principal(void * server_handle,krb5_principal princ,kadm5_principal_ent_t out,uint32_t mask)70 kadm5_s_get_principal(void *server_handle,
71 krb5_principal princ,
72 kadm5_principal_ent_t out,
73 uint32_t mask)
74 {
75 kadm5_server_context *context = server_handle;
76 kadm5_ret_t ret;
77 hdb_entry_ex ent;
78
79 memset(&ent, 0, sizeof(ent));
80 ret = context->db->hdb_open(context->context, context->db, O_RDONLY, 0);
81 if(ret)
82 return ret;
83 ret = context->db->hdb_fetch_kvno(context->context, context->db, princ,
84 HDB_F_DECRYPT|HDB_F_GET_ANY|HDB_F_ADMIN_DATA, 0, &ent);
85 context->db->hdb_close(context->context, context->db);
86 if(ret)
87 return _kadm5_error_code(ret);
88
89 memset(out, 0, sizeof(*out));
90 if(mask & KADM5_PRINCIPAL)
91 ret = krb5_copy_principal(context->context, ent.entry.principal,
92 &out->principal);
93 if(ret)
94 goto out;
95 if(mask & KADM5_PRINC_EXPIRE_TIME && ent.entry.valid_end)
96 out->princ_expire_time = *ent.entry.valid_end;
97 if(mask & KADM5_PW_EXPIRATION && ent.entry.pw_end)
98 out->pw_expiration = *ent.entry.pw_end;
99 if(mask & KADM5_LAST_PWD_CHANGE)
100 hdb_entry_get_pw_change_time(&ent.entry, &out->last_pwd_change);
101 if(mask & KADM5_ATTRIBUTES){
102 out->attributes |= ent.entry.flags.postdate ? 0 : KRB5_KDB_DISALLOW_POSTDATED;
103 out->attributes |= ent.entry.flags.forwardable ? 0 : KRB5_KDB_DISALLOW_FORWARDABLE;
104 out->attributes |= ent.entry.flags.initial ? KRB5_KDB_DISALLOW_TGT_BASED : 0;
105 out->attributes |= ent.entry.flags.renewable ? 0 : KRB5_KDB_DISALLOW_RENEWABLE;
106 out->attributes |= ent.entry.flags.proxiable ? 0 : KRB5_KDB_DISALLOW_PROXIABLE;
107 out->attributes |= ent.entry.flags.invalid ? KRB5_KDB_DISALLOW_ALL_TIX : 0;
108 out->attributes |= ent.entry.flags.require_preauth ? KRB5_KDB_REQUIRES_PRE_AUTH : 0;
109 out->attributes |= ent.entry.flags.server ? 0 : KRB5_KDB_DISALLOW_SVR;
110 out->attributes |= ent.entry.flags.change_pw ? KRB5_KDB_PWCHANGE_SERVICE : 0;
111 out->attributes |= ent.entry.flags.ok_as_delegate ? KRB5_KDB_OK_AS_DELEGATE : 0;
112 out->attributes |= ent.entry.flags.trusted_for_delegation ? KRB5_KDB_TRUSTED_FOR_DELEGATION : 0;
113 out->attributes |= ent.entry.flags.allow_kerberos4 ? KRB5_KDB_ALLOW_KERBEROS4 : 0;
114 out->attributes |= ent.entry.flags.allow_digest ? KRB5_KDB_ALLOW_DIGEST : 0;
115 }
116 if(mask & KADM5_MAX_LIFE) {
117 if(ent.entry.max_life)
118 out->max_life = *ent.entry.max_life;
119 else
120 out->max_life = INT_MAX;
121 }
122 if(mask & KADM5_MOD_TIME) {
123 if(ent.entry.modified_by)
124 out->mod_date = ent.entry.modified_by->time;
125 else
126 out->mod_date = ent.entry.created_by.time;
127 }
128 if(mask & KADM5_MOD_NAME) {
129 if(ent.entry.modified_by) {
130 if (ent.entry.modified_by->principal != NULL)
131 ret = krb5_copy_principal(context->context,
132 ent.entry.modified_by->principal,
133 &out->mod_name);
134 } else if(ent.entry.created_by.principal != NULL)
135 ret = krb5_copy_principal(context->context,
136 ent.entry.created_by.principal,
137 &out->mod_name);
138 else
139 out->mod_name = NULL;
140 }
141 if(ret)
142 goto out;
143
144 if(mask & KADM5_KVNO)
145 out->kvno = ent.entry.kvno;
146 if(mask & KADM5_MKVNO) {
147 size_t n;
148 out->mkvno = 0; /* XXX */
149 for(n = 0; n < ent.entry.keys.len; n++)
150 if(ent.entry.keys.val[n].mkvno) {
151 out->mkvno = *ent.entry.keys.val[n].mkvno; /* XXX this isn't right */
152 break;
153 }
154 }
155 #if 0 /* XXX implement */
156 if(mask & KADM5_AUX_ATTRIBUTES)
157 ;
158 if(mask & KADM5_LAST_SUCCESS)
159 ;
160 if(mask & KADM5_LAST_FAILED)
161 ;
162 if(mask & KADM5_FAIL_AUTH_COUNT)
163 ;
164 #endif
165 if(mask & KADM5_POLICY)
166 out->policy = NULL;
167 if(mask & KADM5_MAX_RLIFE) {
168 if(ent.entry.max_renew)
169 out->max_renewable_life = *ent.entry.max_renew;
170 else
171 out->max_renewable_life = INT_MAX;
172 }
173 if(mask & KADM5_KEY_DATA){
174 size_t i;
175 Key *key;
176 krb5_key_data *kd;
177 krb5_salt salt;
178 krb5_data *sp;
179 krb5_get_pw_salt(context->context, ent.entry.principal, &salt);
180 out->key_data = malloc(ent.entry.keys.len * sizeof(*out->key_data));
181 if (out->key_data == NULL && ent.entry.keys.len != 0) {
182 ret = ENOMEM;
183 goto out;
184 }
185 for(i = 0; i < ent.entry.keys.len; i++){
186 key = &ent.entry.keys.val[i];
187 kd = &out->key_data[i];
188 kd->key_data_ver = 2;
189 kd->key_data_kvno = ent.entry.kvno;
190 kd->key_data_type[0] = key->key.keytype;
191 if(key->salt)
192 kd->key_data_type[1] = key->salt->type;
193 else
194 kd->key_data_type[1] = KRB5_PADATA_PW_SALT;
195 /* setup key */
196 kd->key_data_length[0] = key->key.keyvalue.length;
197 kd->key_data_contents[0] = malloc(kd->key_data_length[0]);
198 if(kd->key_data_contents[0] == NULL && kd->key_data_length[0] != 0){
199 ret = ENOMEM;
200 break;
201 }
202 memcpy(kd->key_data_contents[0], key->key.keyvalue.data,
203 kd->key_data_length[0]);
204 /* setup salt */
205 if(key->salt)
206 sp = &key->salt->salt;
207 else
208 sp = &salt.saltvalue;
209 kd->key_data_length[1] = sp->length;
210 kd->key_data_contents[1] = malloc(kd->key_data_length[1]);
211 if(kd->key_data_length[1] != 0
212 && kd->key_data_contents[1] == NULL) {
213 memset(kd->key_data_contents[0], 0, kd->key_data_length[0]);
214 ret = ENOMEM;
215 break;
216 }
217 memcpy(kd->key_data_contents[1], sp->data, kd->key_data_length[1]);
218 out->n_key_data = i + 1;
219 }
220 krb5_free_salt(context->context, salt);
221 }
222 if(ret){
223 kadm5_free_principal_ent(context, out);
224 goto out;
225 }
226 if(mask & KADM5_TL_DATA) {
227 time_t last_pw_expire;
228 const HDB_Ext_PKINIT_acl *acl;
229 const HDB_Ext_Aliases *aliases;
230
231 ret = hdb_entry_get_pw_change_time(&ent.entry, &last_pw_expire);
232 if (ret == 0 && last_pw_expire) {
233 unsigned char buf[4];
234 _krb5_put_int(buf, last_pw_expire, sizeof(buf));
235 ret = add_tl_data(out, KRB5_TL_LAST_PWD_CHANGE, buf, sizeof(buf));
236 }
237 if(ret){
238 kadm5_free_principal_ent(context, out);
239 goto out;
240 }
241 /*
242 * If the client was allowed to get key data, let it have the
243 * password too.
244 */
245 if(mask & KADM5_KEY_DATA) {
246 heim_utf8_string pw;
247
248 ret = hdb_entry_get_password(context->context,
249 context->db, &ent.entry, &pw);
250 if (ret == 0) {
251 ret = add_tl_data(out, KRB5_TL_PASSWORD, pw, strlen(pw) + 1);
252 free(pw);
253 }
254 krb5_clear_error_message(context->context);
255 }
256
257 ret = hdb_entry_get_pkinit_acl(&ent.entry, &acl);
258 if (ret == 0 && acl) {
259 krb5_data buf;
260 size_t len;
261
262 ASN1_MALLOC_ENCODE(HDB_Ext_PKINIT_acl, buf.data, buf.length,
263 acl, &len, ret);
264 if (ret) {
265 kadm5_free_principal_ent(context, out);
266 goto out;
267 }
268 if (len != buf.length)
269 krb5_abortx(context->context,
270 "internal ASN.1 encoder error");
271 ret = add_tl_data(out, KRB5_TL_PKINIT_ACL, buf.data, buf.length);
272 free(buf.data);
273 if (ret) {
274 kadm5_free_principal_ent(context, out);
275 goto out;
276 }
277 }
278 if(ret){
279 kadm5_free_principal_ent(context, out);
280 goto out;
281 }
282
283 ret = hdb_entry_get_aliases(&ent.entry, &aliases);
284 if (ret == 0 && aliases) {
285 krb5_data buf;
286 size_t len;
287
288 ASN1_MALLOC_ENCODE(HDB_Ext_Aliases, buf.data, buf.length,
289 aliases, &len, ret);
290 if (ret) {
291 kadm5_free_principal_ent(context, out);
292 goto out;
293 }
294 if (len != buf.length)
295 krb5_abortx(context->context,
296 "internal ASN.1 encoder error");
297 ret = add_tl_data(out, KRB5_TL_ALIASES, buf.data, buf.length);
298 free(buf.data);
299 if (ret) {
300 kadm5_free_principal_ent(context, out);
301 goto out;
302 }
303 }
304 if(ret){
305 kadm5_free_principal_ent(context, out);
306 goto out;
307 }
308
309 }
310 out:
311 hdb_free_entry(context->context, &ent);
312
313 return _kadm5_error_code(ret);
314 }
315