1 /*
2 * Copyright (c) 1997-2004 Kungliga Tekniska H�gskolan
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: get.c 15583 2005-07-07 21:44:37Z lha $");
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_string(context, "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 int i, j;
94 unsigned int failed = 0;
95
96 if((keytab = ktutil_open_keytab()) == NULL)
97 return 1;
98
99 if(opt->realm_string)
100 krb5_set_default_realm(context, opt->realm_string);
101
102 if (opt->enctypes_strings.num_strings != 0) {
103
104 etypes = malloc (opt->enctypes_strings.num_strings * sizeof(*etypes));
105 if (etypes == NULL) {
106 krb5_warnx(context, "malloc failed");
107 goto out;
108 }
109 netypes = opt->enctypes_strings.num_strings;
110 for(i = 0; i < netypes; i++) {
111 ret = krb5_string_to_enctype(context,
112 opt->enctypes_strings.strings[i],
113 &etypes[i]);
114 if(ret) {
115 krb5_warnx(context, "unrecognized enctype: %s",
116 opt->enctypes_strings.strings[i]);
117 goto out;
118 }
119 }
120 }
121
122
123 for(i = 0; i < argc; i++){
124 krb5_principal princ_ent;
125 kadm5_principal_ent_rec princ;
126 int mask = 0;
127 krb5_keyblock *keys;
128 int n_keys;
129 int created = 0;
130 krb5_keytab_entry entry;
131
132 ret = krb5_parse_name(context, argv[i], &princ_ent);
133 if (ret) {
134 krb5_warn(context, ret, "can't parse principal %s", argv[i]);
135 failed++;
136 continue;
137 }
138 memset(&princ, 0, sizeof(princ));
139 princ.principal = princ_ent;
140 mask |= KADM5_PRINCIPAL;
141 princ.attributes |= KRB5_KDB_DISALLOW_ALL_TIX;
142 mask |= KADM5_ATTRIBUTES;
143 princ.princ_expire_time = 0;
144 mask |= KADM5_PRINC_EXPIRE_TIME;
145
146 if(kadm_handle == NULL) {
147 const char *r;
148 if(opt->realm_string != NULL)
149 r = opt->realm_string;
150 else
151 r = krb5_principal_get_realm(context, princ_ent);
152 kadm_handle = open_kadmin_connection(opt->principal_string,
153 r,
154 opt->admin_server_string,
155 opt->server_port_integer);
156 if(kadm_handle == NULL)
157 break;
158 }
159
160 ret = kadm5_create_principal(kadm_handle, &princ, mask, "x");
161 if(ret == 0)
162 created = 1;
163 else if(ret != KADM5_DUP) {
164 krb5_warn(context, ret, "kadm5_create_principal(%s)", argv[i]);
165 krb5_free_principal(context, princ_ent);
166 failed++;
167 continue;
168 }
169 ret = kadm5_randkey_principal(kadm_handle, princ_ent, &keys, &n_keys);
170 if (ret) {
171 krb5_warn(context, ret, "kadm5_randkey_principal(%s)", argv[i]);
172 krb5_free_principal(context, princ_ent);
173 failed++;
174 continue;
175 }
176
177 ret = kadm5_get_principal(kadm_handle, princ_ent, &princ,
178 KADM5_PRINCIPAL | KADM5_KVNO | KADM5_ATTRIBUTES);
179 if (ret) {
180 krb5_warn(context, ret, "kadm5_get_principal(%s)", argv[i]);
181 for (j = 0; j < n_keys; j++)
182 krb5_free_keyblock_contents(context, &keys[j]);
183 krb5_free_principal(context, princ_ent);
184 failed++;
185 continue;
186 }
187 if(!created && (princ.attributes & KRB5_KDB_DISALLOW_ALL_TIX))
188 krb5_warnx(context, "%s: disallow-all-tix flag set - clearing", argv[i]);
189 princ.attributes &= (~KRB5_KDB_DISALLOW_ALL_TIX);
190 mask = KADM5_ATTRIBUTES;
191 if(created) {
192 princ.kvno = 1;
193 mask |= KADM5_KVNO;
194 }
195 ret = kadm5_modify_principal(kadm_handle, &princ, mask);
196 if (ret) {
197 krb5_warn(context, ret, "kadm5_modify_principal(%s)", argv[i]);
198 for (j = 0; j < n_keys; j++)
199 krb5_free_keyblock_contents(context, &keys[j]);
200 krb5_free_principal(context, princ_ent);
201 failed++;
202 continue;
203 }
204 for(j = 0; j < n_keys; j++) {
205 int do_add = TRUE;
206
207 if (netypes) {
208 int k;
209
210 do_add = FALSE;
211 for (k = 0; k < netypes; ++k)
212 if (keys[j].keytype == etypes[k]) {
213 do_add = TRUE;
214 break;
215 }
216 }
217 if (do_add) {
218 entry.principal = princ_ent;
219 entry.vno = princ.kvno;
220 entry.keyblock = keys[j];
221 entry.timestamp = time (NULL);
222 ret = krb5_kt_add_entry(context, keytab, &entry);
223 if (ret)
224 krb5_warn(context, ret, "krb5_kt_add_entry");
225 }
226 krb5_free_keyblock_contents(context, &keys[j]);
227 }
228
229 kadm5_free_principal_ent(kadm_handle, &princ);
230 krb5_free_principal(context, princ_ent);
231 }
232 out:
233 free(etypes);
234 if (kadm_handle)
235 kadm5_destroy(kadm_handle);
236 krb5_kt_close(context, keytab);
237 return ret != 0 || failed > 0;
238 }
239