1 /* $NetBSD: mod.c,v 1.2 2017/01/28 21:31:44 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 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 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 108 add_aliases(krb5_context contextp, kadm5_principal_ent_rec *princ, 109 struct getarg_strings *strings) 110 { 111 krb5_error_code ret; 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; i < strings->num_strings; i++) { 133 ret = krb5_parse_name(contextp, strings->strings[i], &p); 134 ret = copy_Principal(p, &ext.data.u.aliases.aliases.val[i]); 135 krb5_free_principal(contextp, p); 136 } 137 } 138 139 ASN1_MALLOC_ENCODE(HDB_extension, buf.data, buf.length, 140 &ext, &size, ret); 141 free_HDB_extension(&ext); 142 if (ret) 143 abort(); 144 if (buf.length != size) 145 abort(); 146 147 add_tl(princ, KRB5_TL_EXTENSION, &buf); 148 } 149 150 static void 151 add_pkinit_acl(krb5_context contextp, kadm5_principal_ent_rec *princ, 152 struct getarg_strings *strings) 153 { 154 krb5_error_code ret; 155 HDB_extension ext; 156 krb5_data buf; 157 size_t size = 0; 158 int i; 159 160 memset(&ext, 0, sizeof(ext)); 161 ext.mandatory = FALSE; 162 ext.data.element = choice_HDB_extension_data_pkinit_acl; 163 ext.data.u.aliases.case_insensitive = 0; 164 165 if (strings->num_strings == 1 && strings->strings[0][0] == '\0') { 166 ext.data.u.pkinit_acl.val = NULL; 167 ext.data.u.pkinit_acl.len = 0; 168 } else { 169 ext.data.u.pkinit_acl.val = 170 calloc(strings->num_strings, 171 sizeof(ext.data.u.pkinit_acl.val[0])); 172 ext.data.u.pkinit_acl.len = strings->num_strings; 173 174 for (i = 0; i < strings->num_strings; i++) { 175 ext.data.u.pkinit_acl.val[i].subject = estrdup(strings->strings[i]); 176 } 177 } 178 179 ASN1_MALLOC_ENCODE(HDB_extension, buf.data, buf.length, 180 &ext, &size, ret); 181 free_HDB_extension(&ext); 182 if (ret) 183 abort(); 184 if (buf.length != size) 185 abort(); 186 187 add_tl(princ, KRB5_TL_EXTENSION, &buf); 188 } 189 190 static void 191 add_kvno_diff(krb5_context contextp, kadm5_principal_ent_rec *princ, 192 int is_svc_diff, krb5_kvno kvno_diff) 193 { 194 krb5_error_code ret; 195 HDB_extension ext; 196 krb5_data buf; 197 size_t size = 0; 198 199 if (kvno_diff < 0) 200 return; 201 if (kvno_diff > 2048) 202 kvno_diff = 2048; 203 204 if (is_svc_diff) { 205 ext.data.element = choice_HDB_extension_data_hist_kvno_diff_svc; 206 ext.data.u.hist_kvno_diff_svc = (unsigned int)kvno_diff; 207 } else { 208 ext.data.element = choice_HDB_extension_data_hist_kvno_diff_clnt; 209 ext.data.u.hist_kvno_diff_clnt = (unsigned int)kvno_diff; 210 } 211 ASN1_MALLOC_ENCODE(HDB_extension, buf.data, buf.length, 212 &ext, &size, ret); 213 if (ret) 214 abort(); 215 if (buf.length != size) 216 abort(); 217 218 add_tl(princ, KRB5_TL_EXTENSION, &buf); 219 } 220 221 static int 222 do_mod_entry(krb5_principal principal, void *data) 223 { 224 krb5_error_code ret; 225 kadm5_principal_ent_rec princ; 226 int mask = 0; 227 struct modify_options *e = data; 228 229 memset (&princ, 0, sizeof(princ)); 230 ret = kadm5_get_principal(kadm_handle, principal, &princ, 231 KADM5_PRINCIPAL | KADM5_ATTRIBUTES | 232 KADM5_MAX_LIFE | KADM5_MAX_RLIFE | 233 KADM5_PRINC_EXPIRE_TIME | 234 KADM5_PW_EXPIRATION); 235 if(ret) 236 return ret; 237 238 if(e->max_ticket_life_string || 239 e->max_renewable_life_string || 240 e->expiration_time_string || 241 e->pw_expiration_time_string || 242 e->attributes_string || 243 e->policy_string || 244 e->kvno_integer != -1 || 245 e->constrained_delegation_strings.num_strings || 246 e->alias_strings.num_strings || 247 e->pkinit_acl_strings.num_strings || 248 e->hist_kvno_diff_clnt_integer != -1 || 249 e->hist_kvno_diff_svc_integer != -1) { 250 ret = set_entry(context, &princ, &mask, 251 e->max_ticket_life_string, 252 e->max_renewable_life_string, 253 e->expiration_time_string, 254 e->pw_expiration_time_string, 255 e->attributes_string, 256 e->policy_string); 257 if(e->kvno_integer != -1) { 258 princ.kvno = e->kvno_integer; 259 mask |= KADM5_KVNO; 260 } 261 if (e->constrained_delegation_strings.num_strings) { 262 add_constrained_delegation(context, &princ, 263 &e->constrained_delegation_strings); 264 mask |= KADM5_TL_DATA; 265 } 266 if (e->alias_strings.num_strings) { 267 add_aliases(context, &princ, &e->alias_strings); 268 mask |= KADM5_TL_DATA; 269 } 270 if (e->pkinit_acl_strings.num_strings) { 271 add_pkinit_acl(context, &princ, &e->pkinit_acl_strings); 272 mask |= KADM5_TL_DATA; 273 } 274 if (e->hist_kvno_diff_clnt_integer != -1) { 275 add_kvno_diff(context, &princ, 0, e->hist_kvno_diff_clnt_integer); 276 mask |= KADM5_TL_DATA; 277 } 278 if (e->hist_kvno_diff_svc_integer != -1) { 279 add_kvno_diff(context, &princ, 1, e->hist_kvno_diff_svc_integer); 280 mask |= KADM5_TL_DATA; 281 } 282 } else 283 ret = edit_entry(&princ, &mask, NULL, 0); 284 if(ret == 0) { 285 ret = kadm5_modify_principal(kadm_handle, &princ, mask); 286 if(ret) 287 krb5_warn(context, ret, "kadm5_modify_principal"); 288 } 289 290 kadm5_free_principal_ent(kadm_handle, &princ); 291 return ret; 292 } 293 294 int 295 mod_entry(struct modify_options *opt, int argc, char **argv) 296 { 297 krb5_error_code ret = 0; 298 int i; 299 300 for(i = 0; i < argc; i++) { 301 ret = foreach_principal(argv[i], do_mod_entry, "mod", opt); 302 if (ret) 303 break; 304 } 305 return ret != 0; 306 } 307 308