1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* 27 * Solaris Kerberos: 28 * Iterate through a keytab (keytab) looking for an entry which matches 29 * the components of a principal (princ) but match on any realm. When a 30 * suitable entry is found return the entry's realm. 31 */ 32 33 #include "k5-int.h" 34 35 krb5_error_code krb5_kt_find_realm(krb5_context context, krb5_keytab keytab, 36 krb5_principal princ, krb5_data *realm) { 37 38 krb5_kt_cursor cur; 39 krb5_keytab_entry ent; 40 krb5_boolean match; 41 krb5_data tmp_realm; 42 krb5_error_code ret, ret2; 43 44 ret = krb5_kt_start_seq_get(context, keytab, &cur); 45 if (ret != 0) { 46 return (ret); 47 } 48 49 while ((ret = krb5_kt_next_entry(context, keytab, &ent, &cur)) == 0) { 50 /* For the comparison the realms should be the same. */ 51 memcpy(&tmp_realm, &ent.principal->realm, sizeof (krb5_data)); 52 memcpy(&ent.principal->realm, &princ->realm, 53 sizeof (krb5_data)); 54 55 match = krb5_principal_compare(context, ent.principal, princ); 56 57 /* Copy the realm back */ 58 memcpy(&ent.principal->realm, &tmp_realm, sizeof (krb5_data)); 59 60 if (match) { 61 /* 62 * A suitable entry was found in the keytab. 63 * Copy its realm 64 */ 65 ret = krb5int_copy_data_contents(context, 66 &ent.principal->realm, realm); 67 if (ret) { 68 krb5_kt_free_entry(context, &ent); 69 krb5_kt_end_seq_get(context, keytab, &cur); 70 return (ret); 71 } 72 73 krb5_kt_free_entry(context, &ent); 74 break; 75 } 76 77 krb5_kt_free_entry(context, &ent); 78 } 79 80 ret2 = krb5_kt_end_seq_get(context, keytab, &cur); 81 82 if (ret == KRB5_KT_END) { 83 return (KRB5_KT_NOTFOUND); 84 } 85 86 return (ret ? ret : ret2); 87 } 88