1/* 2 * Copyright (c) 1999-2006 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 "kadmin_locl.h" 35#include "kadmin-commands.h" 36 37/* 38 * del_enctype principal enctypes... 39 */ 40 41int 42add_enctype(struct add_enctype_options*opt, int argc, char **argv) 43{ 44 kadm5_principal_ent_rec princ; 45 krb5_principal princ_ent = NULL; 46 krb5_error_code ret; 47 const char *princ_name; 48 int i, j; 49 krb5_key_data *new_key_data; 50 int n_etypes; 51 krb5_enctype *etypes; 52 53 if (!opt->random_key_flag) { 54 krb5_warnx (context, "only random key is supported now"); 55 return 0; 56 } 57 58 memset (&princ, 0, sizeof(princ)); 59 princ_name = argv[0]; 60 n_etypes = argc - 1; 61 etypes = malloc (n_etypes * sizeof(*etypes)); 62 if (etypes == NULL) { 63 krb5_warnx (context, "out of memory"); 64 return 0; 65 } 66 argv++; 67 for (i = 0; i < n_etypes; ++i) { 68 ret = krb5_string_to_enctype (context, argv[i], &etypes[i]); 69 if (ret) { 70 krb5_warnx (context, "bad enctype \"%s\"", argv[i]); 71 goto out2; 72 } 73 } 74 75 ret = krb5_parse_name(context, princ_name, &princ_ent); 76 if (ret) { 77 krb5_warn (context, ret, "krb5_parse_name %s", princ_name); 78 goto out2; 79 } 80 81 /* The principal might have zero keys, but it will still have a kvno! */ 82 ret = kadm5_get_principal(kadm_handle, princ_ent, &princ, 83 KADM5_KVNO | KADM5_PRINCIPAL | KADM5_KEY_DATA); 84 if (ret) { 85 krb5_free_principal (context, princ_ent); 86 krb5_warnx (context, "no such principal: %s", princ_name); 87 goto out2; 88 } 89 90 new_key_data = malloc((princ.n_key_data + n_etypes) 91 * sizeof(*new_key_data)); 92 if (new_key_data == NULL) { 93 krb5_warnx (context, "out of memory"); 94 goto out; 95 } 96 97 for (i = 0; i < princ.n_key_data; ++i) { 98 krb5_key_data *key = &princ.key_data[i]; 99 100 for (j = 0; j < n_etypes; ++j) { 101 if (etypes[j] == key->key_data_type[0]) { 102 /* XXX Should this be an error? The admin can del_enctype... */ 103 krb5_warnx(context, "enctype %d already exists", 104 (int)etypes[j]); 105 free(new_key_data); 106 goto out; 107 } 108 } 109 new_key_data[i] = *key; 110 } 111 112 for (i = 0; i < n_etypes; ++i) { 113 int n = princ.n_key_data + i; 114 krb5_keyblock keyblock; 115 116 memset(&new_key_data[n], 0, sizeof(new_key_data[n])); 117 new_key_data[n].key_data_ver = 2; 118 new_key_data[n].key_data_kvno = princ.kvno; 119 120 ret = krb5_generate_random_keyblock (context, etypes[i], &keyblock); 121 if (ret) { 122 krb5_warnx(context, "genernate enctype %d failed", (int)etypes[i]); 123 while (--i >= 0) 124 free(new_key_data[--n].key_data_contents[0]); 125 goto out; 126 } 127 128 /* key */ 129 new_key_data[n].key_data_type[0] = etypes[i]; 130 new_key_data[n].key_data_contents[0] = malloc(keyblock.keyvalue.length); 131 if (new_key_data[n].key_data_contents[0] == NULL) { 132 ret = ENOMEM; 133 krb5_warn(context, ret, "out of memory"); 134 while (--i >= 0) 135 free(new_key_data[--n].key_data_contents[0]); 136 goto out; 137 } 138 new_key_data[n].key_data_length[0] = keyblock.keyvalue.length; 139 memcpy(new_key_data[n].key_data_contents[0], 140 keyblock.keyvalue.data, 141 keyblock.keyvalue.length); 142 krb5_free_keyblock_contents(context, &keyblock); 143 144 /* salt */ 145 new_key_data[n].key_data_type[1] = KRB5_PW_SALT; 146 new_key_data[n].key_data_length[1] = 0; 147 new_key_data[n].key_data_contents[1] = NULL; 148 149 } 150 151 free (princ.key_data); 152 princ.n_key_data += n_etypes; 153 princ.key_data = new_key_data; 154 new_key_data = NULL; 155 156 ret = kadm5_modify_principal (kadm_handle, &princ, KADM5_KEY_DATA); 157 if (ret) 158 krb5_warn(context, ret, "kadm5_modify_principal"); 159out: 160 krb5_free_principal (context, princ_ent); 161 kadm5_free_principal_ent(kadm_handle, &princ); 162out2: 163 free (etypes); 164 return ret != 0; 165} 166