8478dd1c88
Add helper APIs to the mechanism glue from the Apple implementation. gss_mg_export_name() can be used by a mechanism to create an exported name (this is used by the future SAnon implementation). _gss_mech_import_name() allows the mechanism to pass in a list of parsing functions for specific name tiypes. This commit only adds support to the mechanism glue itself.
114 lines
3.5 KiB
C
114 lines
3.5 KiB
C
/*-
|
|
* Copyright (c) 2005 Doug Rabson
|
|
* All rights reserved.
|
|
*
|
|
* Portions Copyright (c) 2010 Apple Inc. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD: src/lib/libgssapi/gss_export_name.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
|
|
*/
|
|
|
|
#include "mech_locl.h"
|
|
|
|
/**
|
|
* Convert a GGS-API name from internal form to contiguous string.
|
|
*
|
|
* @sa gss_import_name(), @ref internalVSmechname.
|
|
*
|
|
* @param minor_status minor status code
|
|
* @param input_name input name in internal name form
|
|
* @param exported_name output name in contiguos string form
|
|
*
|
|
* @returns a gss_error code, see gss_display_status() about printing
|
|
* the error code.
|
|
*
|
|
* @ingroup gssapi
|
|
*/
|
|
GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
|
|
gss_export_name(OM_uint32 *minor_status,
|
|
gss_const_name_t input_name,
|
|
gss_buffer_t exported_name)
|
|
{
|
|
struct _gss_name *name = (struct _gss_name *) input_name;
|
|
struct _gss_mechanism_name *mn;
|
|
|
|
_mg_buffer_zero(exported_name);
|
|
|
|
/*
|
|
* If this name already has any attached MNs, export the first
|
|
* one, otherwise export based on the first mechanism in our
|
|
* list.
|
|
*/
|
|
mn = HEIM_TAILQ_FIRST(&name->gn_mn);
|
|
if (!mn) {
|
|
*minor_status = 0;
|
|
return (GSS_S_NAME_NOT_MN);
|
|
}
|
|
|
|
return mn->gmn_mech->gm_export_name(minor_status,
|
|
mn->gmn_name, exported_name);
|
|
}
|
|
|
|
OM_uint32
|
|
gss_mg_export_name(OM_uint32 *minor_status,
|
|
const gss_const_OID mech,
|
|
const void *name,
|
|
size_t length,
|
|
gss_buffer_t exported_name)
|
|
{
|
|
uint8_t *buf;
|
|
|
|
exported_name->length = 10 + length + mech->length;
|
|
exported_name->value = malloc(exported_name->length);
|
|
if (exported_name->value == NULL) {
|
|
*minor_status = ENOMEM;
|
|
return GSS_S_FAILURE;
|
|
}
|
|
|
|
/* TOK, MECH_OID_LEN, DER(MECH_OID), NAME_LEN, NAME */
|
|
|
|
buf = exported_name->value;
|
|
memcpy(buf, "\x04\x01", 2);
|
|
buf += 2;
|
|
buf[0] = ((mech->length + 2) >> 8) & 0xff;
|
|
buf[1] = (mech->length + 2) & 0xff;
|
|
buf+= 2;
|
|
buf[0] = 0x06;
|
|
buf[1] = (mech->length) & 0xFF;
|
|
buf+= 2;
|
|
|
|
memcpy(buf, mech->elements, mech->length);
|
|
buf += mech->length;
|
|
|
|
buf[0] = (length >> 24) & 0xff;
|
|
buf[1] = (length >> 16) & 0xff;
|
|
buf[2] = (length >> 8) & 0xff;
|
|
buf[3] = (length) & 0xff;
|
|
buf += 4;
|
|
|
|
memcpy (buf, name, length);
|
|
|
|
*minor_status = 0;
|
|
return GSS_S_COMPLETE;
|
|
}
|