1 /*
2 * Copyright (c) 1997-2004 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
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.
16 *
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.
20 *
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
31 * SUCH DAMAGE.
32 */
33
34 #include "ktutil_locl.h"
35
36 RCSID("$Id$");
37
38 static void*
open_kadmin_connection(char * principal,const char * realm,char * admin_server,int server_port)39 open_kadmin_connection(char *principal,
40 const char *realm,
41 char *admin_server,
42 int server_port)
43 {
44 static kadm5_config_params conf;
45 krb5_error_code ret;
46 void *kadm_handle;
47 memset(&conf, 0, sizeof(conf));
48
49 if(realm) {
50 conf.realm = strdup(realm);
51 if (conf.realm == NULL) {
52 krb5_set_error_message(context, 0, "malloc: out of memory");
53 return NULL;
54 }
55 conf.mask |= KADM5_CONFIG_REALM;
56 }
57
58 if (admin_server) {
59 conf.admin_server = admin_server;
60 conf.mask |= KADM5_CONFIG_ADMIN_SERVER;
61 }
62
63 if (server_port) {
64 conf.kadmind_port = htons(server_port);
65 conf.mask |= KADM5_CONFIG_KADMIND_PORT;
66 }
67
68 /* should get realm from each principal, instead of doing
69 everything with the same (local) realm */
70
71 ret = kadm5_init_with_password_ctx(context,
72 principal,
73 NULL,
74 KADM5_ADMIN_SERVICE,
75 &conf, 0, 0,
76 &kadm_handle);
77 free(conf.realm);
78 if(ret) {
79 krb5_warn(context, ret, "kadm5_init_with_password");
80 return NULL;
81 }
82 return kadm_handle;
83 }
84
85 int
kt_get(struct get_options * opt,int argc,char ** argv)86 kt_get(struct get_options *opt, int argc, char **argv)
87 {
88 krb5_error_code ret = 0;
89 krb5_keytab keytab;
90 void *kadm_handle = NULL;
91 krb5_enctype *etypes = NULL;
92 size_t netypes = 0;
93 size_t i;
94 int a, j;
95 unsigned int failed = 0;
96
97 if((keytab = ktutil_open_keytab()) == NULL)
98 return 1;
99
100 if(opt->realm_string)
101 krb5_set_default_realm(context, opt->realm_string);
102
103 if (opt->enctypes_strings.num_strings != 0) {
104
105 etypes = malloc (opt->enctypes_strings.num_strings * sizeof(*etypes));
106 if (etypes == NULL) {
107 krb5_warnx(context, "malloc failed");
108 goto out;
109 }
110 netypes = opt->enctypes_strings.num_strings;
111 for(i = 0; i < netypes; i++) {
112 ret = krb5_string_to_enctype(context,
113 opt->enctypes_strings.strings[i],
114 &etypes[i]);
115 if(ret) {
116 krb5_warnx(context, "unrecognized enctype: %s",
117 opt->enctypes_strings.strings[i]);
118 goto out;
119 }
120 }
121 }
122
123
124 for(a = 0; a < argc; a++){
125 krb5_principal princ_ent;
126 kadm5_principal_ent_rec princ;
127 int mask = 0;
128 krb5_keyblock *keys;
129 int n_keys;
130 int created = 0;
131 krb5_keytab_entry entry;
132
133 ret = krb5_parse_name(context, argv[a], &princ_ent);
134 if (ret) {
135 krb5_warn(context, ret, "can't parse principal %s", argv[a]);
136 failed++;
137 continue;
138 }
139 memset(&princ, 0, sizeof(princ));
140 princ.principal = princ_ent;
141 mask |= KADM5_PRINCIPAL;
142 princ.attributes |= KRB5_KDB_DISALLOW_ALL_TIX;
143 mask |= KADM5_ATTRIBUTES;
144 princ.princ_expire_time = 0;
145 mask |= KADM5_PRINC_EXPIRE_TIME;
146
147 if(kadm_handle == NULL) {
148 const char *r;
149 if(opt->realm_string != NULL)
150 r = opt->realm_string;
151 else
152 r = krb5_principal_get_realm(context, princ_ent);
153 kadm_handle = open_kadmin_connection(opt->principal_string,
154 r,
155 opt->admin_server_string,
156 opt->server_port_integer);
157 if(kadm_handle == NULL)
158 break;
159 }
160
161 ret = kadm5_create_principal(kadm_handle, &princ, mask, "x");
162 if(ret == 0)
163 created = 1;
164 else if(ret != KADM5_DUP) {
165 krb5_warn(context, ret, "kadm5_create_principal(%s)", argv[a]);
166 krb5_free_principal(context, princ_ent);
167 failed++;
168 continue;
169 }
170 ret = kadm5_randkey_principal(kadm_handle, princ_ent, &keys, &n_keys);
171 if (ret) {
172 krb5_warn(context, ret, "kadm5_randkey_principal(%s)", argv[a]);
173 krb5_free_principal(context, princ_ent);
174 failed++;
175 continue;
176 }
177
178 ret = kadm5_get_principal(kadm_handle, princ_ent, &princ,
179 KADM5_PRINCIPAL | KADM5_KVNO | KADM5_ATTRIBUTES);
180 if (ret) {
181 krb5_warn(context, ret, "kadm5_get_principal(%s)", argv[a]);
182 for (j = 0; j < n_keys; j++)
183 krb5_free_keyblock_contents(context, &keys[j]);
184 krb5_free_principal(context, princ_ent);
185 failed++;
186 continue;
187 }
188 if(!created && (princ.attributes & KRB5_KDB_DISALLOW_ALL_TIX))
189 krb5_warnx(context, "%s: disallow-all-tix flag set - clearing", argv[a]);
190 princ.attributes &= (~KRB5_KDB_DISALLOW_ALL_TIX);
191 mask = KADM5_ATTRIBUTES;
192 if(created) {
193 princ.kvno = 1;
194 mask |= KADM5_KVNO;
195 }
196 ret = kadm5_modify_principal(kadm_handle, &princ, mask);
197 if (ret) {
198 krb5_warn(context, ret, "kadm5_modify_principal(%s)", argv[a]);
199 for (j = 0; j < n_keys; j++)
200 krb5_free_keyblock_contents(context, &keys[j]);
201 krb5_free_principal(context, princ_ent);
202 failed++;
203 continue;
204 }
205 for(j = 0; j < n_keys; j++) {
206 int do_add = TRUE;
207
208 if (netypes) {
209 size_t k;
210
211 do_add = FALSE;
212 for (k = 0; k < netypes; ++k)
213 if (keys[j].keytype == etypes[k]) {
214 do_add = TRUE;
215 break;
216 }
217 }
218 if (do_add) {
219 entry.principal = princ_ent;
220 entry.vno = princ.kvno;
221 entry.keyblock = keys[j];
222 entry.timestamp = time (NULL);
223 ret = krb5_kt_add_entry(context, keytab, &entry);
224 if (ret)
225 krb5_warn(context, ret, "krb5_kt_add_entry");
226 }
227 krb5_free_keyblock_contents(context, &keys[j]);
228 }
229
230 kadm5_free_principal_ent(kadm_handle, &princ);
231 krb5_free_principal(context, princ_ent);
232 }
233 out:
234 free(etypes);
235 if (kadm_handle)
236 kadm5_destroy(kadm_handle);
237 krb5_kt_close(context, keytab);
238 return ret != 0 || failed > 0;
239 }
240