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 ret = kadm5_get_principal(kadm_handle, princ_ent, &princ, 82 KADM5_PRINCIPAL | KADM5_KEY_DATA); 83 if (ret) { 84 krb5_free_principal (context, princ_ent); 85 krb5_warnx (context, "no such principal: %s", princ_name); 86 goto out2; 87 } 88 89 new_key_data = malloc((princ.n_key_data + n_etypes) 90 * sizeof(*new_key_data)); 91 if (new_key_data == NULL) { 92 krb5_warnx (context, "out of memory"); 93 goto out; 94 } 95 96 for (i = 0; i < princ.n_key_data; ++i) { 97 krb5_key_data *key = &princ.key_data[i]; 98 99 for (j = 0; j < n_etypes; ++j) { 100 if (etypes[j] == key->key_data_type[0]) { 101 krb5_warnx(context, "enctype %d already exists", 102 (int)etypes[j]); 103 free(new_key_data); 104 goto out; 105 } 106 } 107 new_key_data[i] = *key; 108 } 109 110 for (i = 0; i < n_etypes; ++i) { 111 int n = princ.n_key_data + i; 112 krb5_keyblock keyblock; 113 114 memset(&new_key_data[n], 0, sizeof(new_key_data[n])); 115 new_key_data[n].key_data_ver = 2; 116 new_key_data[n].key_data_kvno = 0; 117 118 ret = krb5_generate_random_keyblock (context, etypes[i], &keyblock); 119 if (ret) { 120 krb5_warnx(context, "genernate enctype %d failed", (int)etypes[i]); 121 while (--i >= 0) 122 free(new_key_data[--n].key_data_contents[0]); 123 goto out; 124 } 125 126 /* key */ 127 new_key_data[n].key_data_type[0] = etypes[i]; 128 new_key_data[n].key_data_contents[0] = malloc(keyblock.keyvalue.length); 129 if (new_key_data[n].key_data_contents[0] == NULL) { 130 ret = ENOMEM; 131 krb5_warn(context, ret, "out of memory"); 132 while (--i >= 0) 133 free(new_key_data[--n].key_data_contents[0]); 134 goto out; 135 } 136 new_key_data[n].key_data_length[0] = keyblock.keyvalue.length; 137 memcpy(new_key_data[n].key_data_contents[0], 138 keyblock.keyvalue.data, 139 keyblock.keyvalue.length); 140 krb5_free_keyblock_contents(context, &keyblock); 141 142 /* salt */ 143 new_key_data[n].key_data_type[1] = KRB5_PW_SALT; 144 new_key_data[n].key_data_length[1] = 0; 145 new_key_data[n].key_data_contents[1] = NULL; 146 147 } 148 149 free (princ.key_data); 150 princ.n_key_data += n_etypes; 151 princ.key_data = new_key_data; 152 new_key_data = NULL; 153 154 ret = kadm5_modify_principal (kadm_handle, &princ, KADM5_KEY_DATA); 155 if (ret) 156 krb5_warn(context, ret, "kadm5_modify_principal"); 157out: 158 krb5_free_principal (context, princ_ent); 159 kadm5_free_principal_ent(kadm_handle, &princ); 160out2: 161 free (etypes); 162 return ret != 0; 163} 164