17c478bd9Sstevel@tonic-gate /* 2*5e01956fSGlenn Barry * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. 37c478bd9Sstevel@tonic-gate */ 47c478bd9Sstevel@tonic-gate /* 57c478bd9Sstevel@tonic-gate * lib/gssapi/krb5/import_sec_context.c 67c478bd9Sstevel@tonic-gate * 7ab9b2e15Sgtb * Copyright 1995,2004 by the Massachusetts Institute of Technology. 87c478bd9Sstevel@tonic-gate * All Rights Reserved. 97c478bd9Sstevel@tonic-gate * 107c478bd9Sstevel@tonic-gate * Export of this software from the United States of America may 117c478bd9Sstevel@tonic-gate * require a specific license from the United States Government. 127c478bd9Sstevel@tonic-gate * It is the responsibility of any person or organization contemplating 137c478bd9Sstevel@tonic-gate * export to obtain such a license before exporting. 147c478bd9Sstevel@tonic-gate * 157c478bd9Sstevel@tonic-gate * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and 167c478bd9Sstevel@tonic-gate * distribute this software and its documentation for any purpose and 177c478bd9Sstevel@tonic-gate * without fee is hereby granted, provided that the above copyright 187c478bd9Sstevel@tonic-gate * notice appear in all copies and that both that copyright notice and 197c478bd9Sstevel@tonic-gate * this permission notice appear in supporting documentation, and that 207c478bd9Sstevel@tonic-gate * the name of M.I.T. not be used in advertising or publicity pertaining 217c478bd9Sstevel@tonic-gate * to distribution of the software without specific, written prior 227c478bd9Sstevel@tonic-gate * permission. Furthermore if you modify this software you must label 237c478bd9Sstevel@tonic-gate * your software as modified software and not distribute it in such a 247c478bd9Sstevel@tonic-gate * fashion that it might be confused with the original M.I.T. software. 257c478bd9Sstevel@tonic-gate * M.I.T. makes no representations about the suitability of 267c478bd9Sstevel@tonic-gate * this software for any purpose. It is provided "as is" without express 277c478bd9Sstevel@tonic-gate * or implied warranty. 287c478bd9Sstevel@tonic-gate * 297c478bd9Sstevel@tonic-gate */ 307c478bd9Sstevel@tonic-gate 317c478bd9Sstevel@tonic-gate /* 327c478bd9Sstevel@tonic-gate * import_sec_context.c - Internalize the security context. 337c478bd9Sstevel@tonic-gate */ 34ab9b2e15Sgtb #include "gssapiP_krb5.h" 35ab9b2e15Sgtb /* for serialization initialization functions */ 36ab9b2e15Sgtb #include "k5-int.h" 37ab9b2e15Sgtb #include "mglueP.h" /* SUNW15resync - for KGSS_ macros */ 38ab9b2e15Sgtb 39ab9b2e15Sgtb #ifdef _KERNEL 40ab9b2e15Sgtb extern OM_uint32 kgss_release_oid(OM_uint32 *, gss_OID *); 41ab9b2e15Sgtb #endif 42ab9b2e15Sgtb 437c478bd9Sstevel@tonic-gate 447c478bd9Sstevel@tonic-gate /* 457c478bd9Sstevel@tonic-gate * Fix up the OID of the mechanism so that uses the static version of 467c478bd9Sstevel@tonic-gate * the OID if possible. 477c478bd9Sstevel@tonic-gate */ 48ab9b2e15Sgtb gss_OID krb5_gss_convert_static_mech_oid(oid) 49ab9b2e15Sgtb gss_OID oid; 507c478bd9Sstevel@tonic-gate { 517c478bd9Sstevel@tonic-gate const gss_OID_desc *p; 527c478bd9Sstevel@tonic-gate OM_uint32 minor_status; 537c478bd9Sstevel@tonic-gate 547c478bd9Sstevel@tonic-gate for (p = krb5_gss_oid_array; p->length; p++) { 557c478bd9Sstevel@tonic-gate if ((oid->length == p->length) && 567c478bd9Sstevel@tonic-gate (memcmp(oid->elements, p->elements, p->length) == 0)) { 57ab9b2e15Sgtb (void) KGSS_RELEASE_OID(&minor_status, &oid); 58ab9b2e15Sgtb return (gss_OID) p; 597c478bd9Sstevel@tonic-gate } 607c478bd9Sstevel@tonic-gate } 61ab9b2e15Sgtb return oid; 627c478bd9Sstevel@tonic-gate } 63ab9b2e15Sgtb 64ab9b2e15Sgtb krb5_error_code 65ab9b2e15Sgtb krb5_gss_ser_init (krb5_context context) 66ab9b2e15Sgtb { 67ab9b2e15Sgtb krb5_error_code code; 68ab9b2e15Sgtb static krb5_error_code (KRB5_CALLCONV *const fns[])(krb5_context) = { 69ab9b2e15Sgtb krb5_ser_auth_context_init, 70ab9b2e15Sgtb #ifndef _KERNEL 71ab9b2e15Sgtb krb5_ser_context_init, 72ab9b2e15Sgtb krb5_ser_ccache_init, krb5_ser_rcache_init, krb5_ser_keytab_init, 737c478bd9Sstevel@tonic-gate #endif 74ab9b2e15Sgtb }; 75ab9b2e15Sgtb int i; 76ab9b2e15Sgtb 77ab9b2e15Sgtb for (i = 0; i < sizeof(fns)/sizeof(fns[0]); i++) 78ab9b2e15Sgtb if ((code = (fns[i])(context)) != 0) 79ab9b2e15Sgtb return code; 80ab9b2e15Sgtb return 0; 81ab9b2e15Sgtb } 827c478bd9Sstevel@tonic-gate 837c478bd9Sstevel@tonic-gate OM_uint32 84ab9b2e15Sgtb krb5_gss_import_sec_context(minor_status, interprocess_token, context_handle) 857c478bd9Sstevel@tonic-gate OM_uint32 *minor_status; 867c478bd9Sstevel@tonic-gate gss_buffer_t interprocess_token; 877c478bd9Sstevel@tonic-gate gss_ctx_id_t *context_handle; 887c478bd9Sstevel@tonic-gate { 897c478bd9Sstevel@tonic-gate krb5_context context; 907c478bd9Sstevel@tonic-gate krb5_error_code kret = 0; 917c478bd9Sstevel@tonic-gate size_t blen; 927c478bd9Sstevel@tonic-gate krb5_gss_ctx_id_t ctx; 937c478bd9Sstevel@tonic-gate krb5_octet *ibp; 947c478bd9Sstevel@tonic-gate 95ab9b2e15Sgtb /* This is a bit screwy. We create a krb5 context because we need 96ab9b2e15Sgtb one when calling the serialization code. However, one of the 97ab9b2e15Sgtb objects we're unpacking is a krb5 context, so when we finish, 98ab9b2e15Sgtb we can throw this one away. */ 99ab9b2e15Sgtb kret = KGSS_INIT_CONTEXT(&context); 100ab9b2e15Sgtb if (kret) { 101ab9b2e15Sgtb *minor_status = kret; 102ab9b2e15Sgtb return GSS_S_FAILURE; 103ab9b2e15Sgtb } 1047c478bd9Sstevel@tonic-gate 105ab9b2e15Sgtb kret = krb5_gss_ser_init(context); 106ab9b2e15Sgtb if (kret) { 107ab9b2e15Sgtb *minor_status = kret; 108*5e01956fSGlenn Barry save_error_info(*minor_status, context); 109*5e01956fSGlenn Barry krb5_free_context(context); 110ab9b2e15Sgtb return GSS_S_FAILURE; 111ab9b2e15Sgtb } 1127c478bd9Sstevel@tonic-gate 1137c478bd9Sstevel@tonic-gate /* Assume a tragic failure */ 1147c478bd9Sstevel@tonic-gate ctx = (krb5_gss_ctx_id_t) NULL; 1157c478bd9Sstevel@tonic-gate *minor_status = 0; 1167c478bd9Sstevel@tonic-gate 1177c478bd9Sstevel@tonic-gate /* Internalize the context */ 1187c478bd9Sstevel@tonic-gate ibp = (krb5_octet *) interprocess_token->value; 1197c478bd9Sstevel@tonic-gate blen = (size_t) interprocess_token->length; 120ab9b2e15Sgtb kret = kg_ctx_internalize(context, (krb5_pointer *) &ctx, &ibp, &blen); 121ab9b2e15Sgtb /* 122ab9b2e15Sgtb * SUNW15resync 123ab9b2e15Sgtb * 124ab9b2e15Sgtb * krb5_free_context(context); 125ab9b2e15Sgtb * Previous versions of MIT(1.2ish)/Solaris did not serialize the 126ab9b2e15Sgtb * k5_context but MIT 1.5 does. But we don't need all the userspace 127ab9b2e15Sgtb * junk in the kernel so we continue to not serialize it. 128ab9b2e15Sgtb * So we keep this context live here (see it's use in kg_ctx_internalize) 129ab9b2e15Sgtb * and it will get freed by delete_sec_context. 130ab9b2e15Sgtb */ 131ab9b2e15Sgtb if (kret) { 1327c478bd9Sstevel@tonic-gate *minor_status = (OM_uint32) kret; 133*5e01956fSGlenn Barry save_error_info(*minor_status, context); 134*5e01956fSGlenn Barry krb5_free_context(context); 135ab9b2e15Sgtb return(GSS_S_FAILURE); 1367c478bd9Sstevel@tonic-gate } 1377c478bd9Sstevel@tonic-gate 1387c478bd9Sstevel@tonic-gate /* intern the context handle */ 1397c478bd9Sstevel@tonic-gate if (! kg_save_ctx_id((gss_ctx_id_t) ctx)) { 140ab9b2e15Sgtb (void)krb5_gss_delete_sec_context(minor_status, 1417c478bd9Sstevel@tonic-gate (gss_ctx_id_t *) &ctx, NULL 1427c478bd9Sstevel@tonic-gate #ifdef _KERNEL 143ab9b2e15Sgtb ,0 /* gssd_ctx_verifier */ 1447c478bd9Sstevel@tonic-gate #endif 1457c478bd9Sstevel@tonic-gate ); 1467c478bd9Sstevel@tonic-gate *minor_status = (OM_uint32) G_VALIDATE_FAILED; 1477c478bd9Sstevel@tonic-gate return(GSS_S_FAILURE); 1487c478bd9Sstevel@tonic-gate } 149ab9b2e15Sgtb ctx->mech_used = krb5_gss_convert_static_mech_oid(ctx->mech_used); 150ab9b2e15Sgtb 1517c478bd9Sstevel@tonic-gate *context_handle = (gss_ctx_id_t) ctx; 1527c478bd9Sstevel@tonic-gate 1537c478bd9Sstevel@tonic-gate *minor_status = 0; 1547c478bd9Sstevel@tonic-gate return (GSS_S_COMPLETE); 1557c478bd9Sstevel@tonic-gate } 156