1 /* 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. 3 */ 4 /* 5 * lib/gssapi/krb5/export_name.c 6 * 7 * Copyright 1997 by the Massachusetts Institute of Technology. 8 * All Rights Reserved. 9 * 10 * Export of this software from the United States of America may 11 * require a specific license from the United States Government. 12 * It is the responsibility of any person or organization contemplating 13 * export to obtain such a license before exporting. 14 * 15 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and 16 * distribute this software and its documentation for any purpose and 17 * without fee is hereby granted, provided that the above copyright 18 * notice appear in all copies and that both that copyright notice and 19 * this permission notice appear in supporting documentation, and that 20 * the name of M.I.T. not be used in advertising or publicity pertaining 21 * to distribution of the software without specific, written prior 22 * permission. Furthermore if you modify this software you must label 23 * your software as modified software and not distribute it in such a 24 * fashion that it might be confused with the original M.I.T. software. 25 * M.I.T. makes no representations about the suitability of 26 * this software for any purpose. It is provided "as is" without express 27 * or implied warranty. 28 * 29 */ 30 31 #include "gssapiP_krb5.h" 32 33 OM_uint32 krb5_gss_export_name(OM_uint32 *minor_status, 34 const gss_name_t input_name, 35 gss_buffer_t exported_name) 36 { 37 krb5_context context; 38 krb5_error_code code; 39 size_t length; 40 char *str, *cp; 41 42 if (minor_status) 43 *minor_status = 0; 44 45 code = krb5_gss_init_context(&context); 46 if (code) { 47 if (minor_status) 48 *minor_status = code; 49 return GSS_S_FAILURE; 50 } 51 52 exported_name->length = 0; 53 exported_name->value = NULL; 54 55 if (! kg_validate_name(input_name)) { 56 /* Solaris Kerberos: spruce-up the err msg */ 57 krb5_principal princ = (krb5_principal) input_name; 58 char *s_name = NULL; 59 int kret = krb5_unparse_name(context, princ, &s_name); 60 if (minor_status) 61 *minor_status = (OM_uint32) G_VALIDATE_FAILED; 62 if (minor_status && kret == 0) { 63 krb5_set_error_message(context, *minor_status, 64 "Input name principal '%s' is invalid (kg_validate_name()) for export_name", 65 s_name); 66 save_error_info(*minor_status, context); 67 krb5_free_unparsed_name(context, s_name); 68 } 69 krb5_free_context(context); 70 return(GSS_S_CALL_BAD_STRUCTURE|GSS_S_BAD_NAME); 71 } 72 73 if ((code = krb5_unparse_name(context, (krb5_principal) input_name, 74 &str))) { 75 if (minor_status) 76 *minor_status = code; 77 save_error_info((OM_uint32)code, context); 78 krb5_free_context(context); 79 return(GSS_S_FAILURE); 80 } 81 82 krb5_free_context(context); 83 length = strlen(str); 84 exported_name->length = 10 + length + gss_mech_krb5->length; 85 exported_name->value = malloc(exported_name->length); 86 if (!exported_name->value) { 87 free(str); 88 if (minor_status) 89 *minor_status = ENOMEM; 90 return(GSS_S_FAILURE); 91 } 92 cp = exported_name->value; 93 94 /* Note: we assume the OID will be less than 128 bytes... */ 95 *cp++ = 0x04; *cp++ = 0x01; 96 *cp++ = (gss_mech_krb5->length+2) >> 8; 97 *cp++ = (gss_mech_krb5->length+2) & 0xFF; 98 *cp++ = 0x06; 99 *cp++ = (gss_mech_krb5->length) & 0xFF; 100 memcpy(cp, gss_mech_krb5->elements, gss_mech_krb5->length); 101 cp += gss_mech_krb5->length; 102 *cp++ = length >> 24; 103 *cp++ = length >> 16; 104 *cp++ = length >> 8; 105 *cp++ = length & 0xFF; 106 memcpy(cp, str, length); 107 108 free(str); 109 110 return(GSS_S_COMPLETE); 111 } 112