1 /* 2 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 #pragma ident "%Z%%M% %I% %E% SMI" 7 8 /* 9 * lib/gssapi/krb5/import_sec_context.c 10 * 11 * Copyright 1995 by the Massachusetts Institute of Technology. 12 * All Rights Reserved. 13 * 14 * Export of this software from the United States of America may 15 * require a specific license from the United States Government. 16 * It is the responsibility of any person or organization contemplating 17 * export to obtain such a license before exporting. 18 * 19 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and 20 * distribute this software and its documentation for any purpose and 21 * without fee is hereby granted, provided that the above copyright 22 * notice appear in all copies and that both that copyright notice and 23 * this permission notice appear in supporting documentation, and that 24 * the name of M.I.T. not be used in advertising or publicity pertaining 25 * to distribution of the software without specific, written prior 26 * permission. Furthermore if you modify this software you must label 27 * your software as modified software and not distribute it in such a 28 * fashion that it might be confused with the original M.I.T. software. 29 * M.I.T. makes no representations about the suitability of 30 * this software for any purpose. It is provided "as is" without express 31 * or implied warranty. 32 * 33 */ 34 35 /* 36 * import_sec_context.c - Internalize the security context. 37 */ 38 #include <gssapiP_krb5.h> 39 #include <k5-int.h> 40 #include <gssapi/gssapi.h> 41 42 /* 43 * Fix up the OID of the mechanism so that uses the static version of 44 * the OID if possible. 45 * 46 * Solaris Kerberos: this is not necessary. Our mech_used is allocated 47 * as part of the context structure. This function attempts to point to 48 * the corresponding gss_OID in the array krb5_gss_oid_array. 49 */ 50 #if 0 51 gss_OID_desc krb5_gss_convert_static_mech_oid(oid) 52 gss_OID FAR oid; 53 { 54 const gss_OID_desc *p; 55 OM_uint32 minor_status; 56 57 for (p = krb5_gss_oid_array; p->length; p++) { 58 if ((oid->length == p->length) && 59 (memcmp(oid->elements, p->elements, p->length) == 0)) { 60 gss_release_oid(&minor_status, &oid); 61 return *p; 62 } 63 } 64 return *oid; 65 } 66 #endif 67 68 OM_uint32 69 krb5_gss_import_sec_context(ct, minor_status, interprocess_token, context_handle) 70 void *ct; 71 OM_uint32 *minor_status; 72 gss_buffer_t interprocess_token; 73 gss_ctx_id_t *context_handle; 74 { 75 krb5_context context; 76 krb5_error_code kret = 0; 77 size_t blen; 78 krb5_gss_ctx_id_t ctx; 79 krb5_octet *ibp; 80 81 /* Solaris Kerberos: we use the global kg_context for MT safe */ 82 #if 0 83 if (GSS_ERROR(kg_get_context(minor_status, &context))) 84 return(GSS_S_FAILURE); 85 #endif 86 87 KRB5_LOG0(KRB5_INFO, "krb5_gss_import_sec_context() start\n"); 88 89 mutex_lock(&krb5_mutex); 90 context = ct; 91 92 /* Assume a tragic failure */ 93 ctx = (krb5_gss_ctx_id_t) NULL; 94 *minor_status = 0; 95 96 /* Internalize the context */ 97 ibp = (krb5_octet *) interprocess_token->value; 98 blen = (size_t) interprocess_token->length; 99 if ((kret = kg_ctx_internalize(context, 100 (krb5_pointer *) &ctx, 101 &ibp, &blen))) { 102 *minor_status = (OM_uint32) kret; 103 mutex_unlock(&krb5_mutex); 104 105 KRB5_LOG(KRB5_ERR, "krb5_gss_import_sec_context() end," 106 "kg_ctx_internalize() error kret = %d\n", kret); 107 108 if (kret == ENOMEM) 109 return(GSS_S_FAILURE); 110 else 111 return(GSS_S_DEFECTIVE_TOKEN); 112 } 113 114 /* intern the context handle */ 115 if (! kg_save_ctx_id((gss_ctx_id_t) ctx)) { 116 (void)krb5_gss_delete_sec_context_no_lock(context, minor_status, 117 (gss_ctx_id_t *) &ctx, NULL 118 #ifdef _KERNEL 119 ,0 /* gssd_ctx_verifier */ 120 #endif 121 ); 122 *minor_status = (OM_uint32) G_VALIDATE_FAILED; 123 mutex_unlock(&krb5_mutex); 124 125 KRB5_LOG0(KRB5_ERR, "krb5_gss_import_sec_context() end," 126 "kg_save_ctx_id() error\n"); 127 128 return(GSS_S_FAILURE); 129 } 130 if (! kg_validate_ctx_id((gss_ctx_id_t) ctx)) { 131 *minor_status = (OM_uint32) G_VALIDATE_FAILED; 132 mutex_unlock(&krb5_mutex); 133 134 KRB5_LOG0(KRB5_ERR, "krb5_gss_import_sec_context() end," 135 "kg_validate_ctx_id() error\n"); 136 137 return(GSS_S_FAILURE); 138 } 139 140 /* Solaris Kerberos: our mech_used is part of the ctx structure */ 141 /* ctx->mech_used = krb5_gss_convert_static_mech_oid(&(ctx->mech_used)); */ 142 143 *context_handle = (gss_ctx_id_t) ctx; 144 145 *minor_status = 0; 146 mutex_unlock(&krb5_mutex); 147 148 KRB5_LOG0(KRB5_INFO, "krb5_gss_import_sec_context() end\n"); 149 150 return (GSS_S_COMPLETE); 151 } 152