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/*
* lib/gssapi/krb5/import_sec_context.c
*
* Copyright 1995 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*/
/*
* import_sec_context.c - Internalize the security context.
*/
#include "gssapiP_krb5.h"
/*
* Fix up the OID of the mechanism so that uses the static version of
* the OID if possible.
*/
gss_OID krb5_gss_convert_static_mech_oid(oid)
gss_OID FAR oid;
{
const gss_OID_desc *p;
OM_uint32 minor_status;
for (p = krb5_gss_oid_array; p->length; p++) {
if ((oid->length == p->length) &&
(memcmp(oid->elements, p->elements, p->length) == 0)) {
gss_release_oid(&minor_status, &oid);
return p;
}
}
return oid;
}
OM_uint32
krb5_gss_import_sec_context(minor_status, interprocess_token, context_handle)
OM_uint32 *minor_status;
gss_buffer_t interprocess_token;
gss_ctx_id_t *context_handle;
{
krb5_context context;
krb5_error_code kret = 0;
OM_uint32 retval;
size_t blen;
krb5_gss_ctx_id_t ctx;
krb5_octet *ibp;
if (GSS_ERROR(kg_get_context(minor_status, &context)))
return(GSS_S_FAILURE);
/* Assume a tragic failure */
ctx = (krb5_gss_ctx_id_t) NULL;
retval = GSS_S_FAILURE;
*minor_status = 0;
/* Internalize the context */
ibp = (krb5_octet *) interprocess_token->value;
blen = (size_t) interprocess_token->length;
if ((kret = kg_ctx_internalize(context,
(krb5_pointer *) &ctx,
&ibp, &blen))) {
*minor_status = (OM_uint32) kret;
return(GSS_S_FAILURE);
}
/* intern the context handle */
if (! kg_save_ctx_id((gss_ctx_id_t) ctx)) {
(void)krb5_gss_delete_sec_context(minor_status,
(gss_ctx_id_t *) &ctx, NULL);
*minor_status = (OM_uint32) G_VALIDATE_FAILED;
return(GSS_S_FAILURE);
}
ctx->mech_used = krb5_gss_convert_static_mech_oid(ctx->mech_used);
*context_handle = (gss_ctx_id_t) ctx;
*minor_status = 0;
return (GSS_S_COMPLETE);
}
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