get.c
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* 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 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 = (uint32_t)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 }