1 /* $NetBSD: mod.c,v 1.3 2023/06/19 21:41:41 christos 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 "kadmin_locl.h"
37 #include "kadmin-commands.h"
38
39 static void
add_tl(kadm5_principal_ent_rec * princ,int type,krb5_data * data)40 add_tl(kadm5_principal_ent_rec *princ, int type, krb5_data *data)
41 {
42 krb5_tl_data *tl, **ptl;
43
44 tl = ecalloc(1, sizeof(*tl));
45 tl->tl_data_next = NULL;
46 tl->tl_data_type = type;
47 tl->tl_data_length = data->length;
48 tl->tl_data_contents = data->data;
49
50 princ->n_tl_data++;
51 ptl = &princ->tl_data;
52 while (*ptl != NULL)
53 ptl = &(*ptl)->tl_data_next;
54 *ptl = tl;
55
56 return;
57 }
58
59 static void
add_constrained_delegation(krb5_context contextp,kadm5_principal_ent_rec * princ,struct getarg_strings * strings)60 add_constrained_delegation(krb5_context contextp,
61 kadm5_principal_ent_rec *princ,
62 struct getarg_strings *strings)
63 {
64 krb5_error_code ret;
65 HDB_extension ext;
66 krb5_data buf;
67 size_t size = 0;
68
69 memset(&ext, 0, sizeof(ext));
70 ext.mandatory = FALSE;
71 ext.data.element = choice_HDB_extension_data_allowed_to_delegate_to;
72
73 if (strings->num_strings == 1 && strings->strings[0][0] == '\0') {
74 ext.data.u.allowed_to_delegate_to.val = NULL;
75 ext.data.u.allowed_to_delegate_to.len = 0;
76 } else {
77 krb5_principal p;
78 int i;
79
80 ext.data.u.allowed_to_delegate_to.val =
81 calloc(strings->num_strings,
82 sizeof(ext.data.u.allowed_to_delegate_to.val[0]));
83 ext.data.u.allowed_to_delegate_to.len = strings->num_strings;
84
85 for (i = 0; i < strings->num_strings; i++) {
86 ret = krb5_parse_name(contextp, strings->strings[i], &p);
87 if (ret)
88 abort();
89 ret = copy_Principal(p, &ext.data.u.allowed_to_delegate_to.val[i]);
90 if (ret)
91 abort();
92 krb5_free_principal(contextp, p);
93 }
94 }
95
96 ASN1_MALLOC_ENCODE(HDB_extension, buf.data, buf.length,
97 &ext, &size, ret);
98 free_HDB_extension(&ext);
99 if (ret)
100 abort();
101 if (buf.length != size)
102 abort();
103
104 add_tl(princ, KRB5_TL_EXTENSION, &buf);
105 }
106
107 static void
add_aliases(krb5_context contextp,kadm5_principal_ent_rec * princ,struct getarg_strings * strings)108 add_aliases(krb5_context contextp, kadm5_principal_ent_rec *princ,
109 struct getarg_strings *strings)
110 {
111 krb5_error_code ret = 0;
112 HDB_extension ext;
113 krb5_data buf;
114 krb5_principal p;
115 size_t size = 0;
116 int i;
117
118 memset(&ext, 0, sizeof(ext));
119 ext.mandatory = FALSE;
120 ext.data.element = choice_HDB_extension_data_aliases;
121 ext.data.u.aliases.case_insensitive = 0;
122
123 if (strings->num_strings == 1 && strings->strings[0][0] == '\0') {
124 ext.data.u.aliases.aliases.val = NULL;
125 ext.data.u.aliases.aliases.len = 0;
126 } else {
127 ext.data.u.aliases.aliases.val =
128 calloc(strings->num_strings,
129 sizeof(ext.data.u.aliases.aliases.val[0]));
130 ext.data.u.aliases.aliases.len = strings->num_strings;
131
132 for (i = 0; ret == 0 && i < strings->num_strings; i++) {
133 ret = krb5_parse_name(contextp, strings->strings[i], &p);
134 if (ret)
135 krb5_err(contextp, 1, ret, "Could not parse alias %s",
136 strings->strings[i]);
137 if (ret == 0)
138 ret = copy_Principal(p, &ext.data.u.aliases.aliases.val[i]);
139 if (ret)
140 krb5_err(contextp, 1, ret, "Could not copy parsed alias %s",
141 strings->strings[i]);
142 krb5_free_principal(contextp, p);
143 }
144 }
145
146 ASN1_MALLOC_ENCODE(HDB_extension, buf.data, buf.length,
147 &ext, &size, ret);
148 free_HDB_extension(&ext);
149 if (ret)
150 abort();
151 if (buf.length != size)
152 abort();
153
154 add_tl(princ, KRB5_TL_EXTENSION, &buf);
155 }
156
157 static void
add_pkinit_acl(krb5_context contextp,kadm5_principal_ent_rec * princ,struct getarg_strings * strings)158 add_pkinit_acl(krb5_context contextp, kadm5_principal_ent_rec *princ,
159 struct getarg_strings *strings)
160 {
161 krb5_error_code ret;
162 HDB_extension ext;
163 krb5_data buf;
164 size_t size = 0;
165 int i;
166
167 memset(&ext, 0, sizeof(ext));
168 ext.mandatory = FALSE;
169 ext.data.element = choice_HDB_extension_data_pkinit_acl;
170 ext.data.u.aliases.case_insensitive = 0;
171
172 if (strings->num_strings == 1 && strings->strings[0][0] == '\0') {
173 ext.data.u.pkinit_acl.val = NULL;
174 ext.data.u.pkinit_acl.len = 0;
175 } else {
176 ext.data.u.pkinit_acl.val =
177 calloc(strings->num_strings,
178 sizeof(ext.data.u.pkinit_acl.val[0]));
179 ext.data.u.pkinit_acl.len = strings->num_strings;
180
181 for (i = 0; i < strings->num_strings; i++) {
182 ext.data.u.pkinit_acl.val[i].subject = estrdup(strings->strings[i]);
183 }
184 }
185
186 ASN1_MALLOC_ENCODE(HDB_extension, buf.data, buf.length,
187 &ext, &size, ret);
188 free_HDB_extension(&ext);
189 if (ret)
190 abort();
191 if (buf.length != size)
192 abort();
193
194 add_tl(princ, KRB5_TL_EXTENSION, &buf);
195 }
196
197 static void
add_kvno_diff(krb5_context contextp,kadm5_principal_ent_rec * princ,int is_svc_diff,krb5_kvno kvno_diff)198 add_kvno_diff(krb5_context contextp, kadm5_principal_ent_rec *princ,
199 int is_svc_diff, krb5_kvno kvno_diff)
200 {
201 krb5_error_code ret;
202 HDB_extension ext;
203 krb5_data buf;
204 size_t size = 0;
205
206 if (kvno_diff < 0)
207 return;
208 if (kvno_diff > 2048)
209 kvno_diff = 2048;
210
211 if (is_svc_diff) {
212 ext.data.element = choice_HDB_extension_data_hist_kvno_diff_svc;
213 ext.data.u.hist_kvno_diff_svc = (unsigned int)kvno_diff;
214 } else {
215 ext.data.element = choice_HDB_extension_data_hist_kvno_diff_clnt;
216 ext.data.u.hist_kvno_diff_clnt = (unsigned int)kvno_diff;
217 }
218 ASN1_MALLOC_ENCODE(HDB_extension, buf.data, buf.length,
219 &ext, &size, ret);
220 if (ret)
221 abort();
222 if (buf.length != size)
223 abort();
224
225 add_tl(princ, KRB5_TL_EXTENSION, &buf);
226 }
227
228 static int
do_mod_entry(krb5_principal principal,void * data)229 do_mod_entry(krb5_principal principal, void *data)
230 {
231 krb5_error_code ret;
232 kadm5_principal_ent_rec princ;
233 int mask = 0;
234 struct modify_options *e = data;
235
236 memset (&princ, 0, sizeof(princ));
237 ret = kadm5_get_principal(kadm_handle, principal, &princ,
238 KADM5_PRINCIPAL | KADM5_ATTRIBUTES |
239 KADM5_MAX_LIFE | KADM5_MAX_RLIFE |
240 KADM5_PRINC_EXPIRE_TIME |
241 KADM5_PW_EXPIRATION);
242 if(ret)
243 return ret;
244
245 if(e->max_ticket_life_string ||
246 e->max_renewable_life_string ||
247 e->expiration_time_string ||
248 e->pw_expiration_time_string ||
249 e->attributes_string ||
250 e->policy_string ||
251 e->kvno_integer != -1 ||
252 e->constrained_delegation_strings.num_strings ||
253 e->alias_strings.num_strings ||
254 e->pkinit_acl_strings.num_strings ||
255 e->hist_kvno_diff_clnt_integer != -1 ||
256 e->hist_kvno_diff_svc_integer != -1) {
257 ret = set_entry(context, &princ, &mask,
258 e->max_ticket_life_string,
259 e->max_renewable_life_string,
260 e->expiration_time_string,
261 e->pw_expiration_time_string,
262 e->attributes_string,
263 e->policy_string);
264 if(e->kvno_integer != -1) {
265 princ.kvno = e->kvno_integer;
266 mask |= KADM5_KVNO;
267 }
268 if (e->constrained_delegation_strings.num_strings) {
269 add_constrained_delegation(context, &princ,
270 &e->constrained_delegation_strings);
271 mask |= KADM5_TL_DATA;
272 }
273 if (e->alias_strings.num_strings) {
274 add_aliases(context, &princ, &e->alias_strings);
275 mask |= KADM5_TL_DATA;
276 }
277 if (e->pkinit_acl_strings.num_strings) {
278 add_pkinit_acl(context, &princ, &e->pkinit_acl_strings);
279 mask |= KADM5_TL_DATA;
280 }
281 if (e->hist_kvno_diff_clnt_integer != -1) {
282 add_kvno_diff(context, &princ, 0, e->hist_kvno_diff_clnt_integer);
283 mask |= KADM5_TL_DATA;
284 }
285 if (e->hist_kvno_diff_svc_integer != -1) {
286 add_kvno_diff(context, &princ, 1, e->hist_kvno_diff_svc_integer);
287 mask |= KADM5_TL_DATA;
288 }
289 } else
290 ret = edit_entry(&princ, &mask, NULL, 0);
291 if(ret == 0) {
292 ret = kadm5_modify_principal(kadm_handle, &princ, mask);
293 if(ret)
294 krb5_warn(context, ret, "kadm5_modify_principal");
295 }
296
297 kadm5_free_principal_ent(kadm_handle, &princ);
298 return ret;
299 }
300
301 int
mod_entry(struct modify_options * opt,int argc,char ** argv)302 mod_entry(struct modify_options *opt, int argc, char **argv)
303 {
304 krb5_error_code ret = 0;
305 int i;
306
307 for(i = 0; i < argc; i++) {
308 ret = foreach_principal(argv[i], do_mod_entry, "mod", opt);
309 if (ret)
310 break;
311 }
312 return ret != 0;
313 }
314
315