+++ /dev/null
-/* #ident "@(#)g_glue.c 1.1 96/02/06 SMI" */
-
-/*
- * Copyright 1996 by Sun Microsystems, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software
- * and its documentation for any purpose is hereby granted without fee,
- * provided that the above copyright notice appears in all copies and
- * that both that copyright notice and this permission notice appear in
- * supporting documentation, and that the name of Sun Microsystems not be used
- * in advertising or publicity pertaining to distribution of the software
- * without specific, written prior permission. Sun Microsystems makes no
- * representations about the suitability of this software for any
- * purpose. It is provided "as is" without express or implied warranty.
- *
- * SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
- * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
- * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "mglueP.h"
-#include <stdio.h>
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#include <string.h>
-#include <errno.h>
-
-#define g_OID_equal(o1,o2) \
- (((o1)->length == (o2)->length) && \
- (memcmp((o1)->elements,(o2)->elements,(int) (o1)->length) == 0))
-
-extern gss_mechanism *__gss_mechs_array;
-
-/*
- * This file contains the support routines for the glue layer.
- */
-
-/*
- * given the mechs_array and a mechanism OID, return the
- * pointer to the mechanism, or NULL if that mechanism is
- * not supported. If the requested OID is NULL, then return
- * the first mechanism.
- */
-
-gss_mechanism __gss_get_mechanism (type)
- gss_OID type;
-{
- int i;
-
- if (type == GSS_C_NULL_OID)
- return (__gss_mechs_array[0]);
-
- for (i=0; __gss_mechs_array[i]->mech_type.length != 0; i++) {
- if ((__gss_mechs_array[i]->mech_type.length == type->length) &&
- (memcmp (__gss_mechs_array[i]->mech_type.elements, type->elements,
- type->length) == 0)) {
-
- return (__gss_mechs_array[i]);
- }
- }
- return NULL;
-}
-
-
-/*
- * glue routine for get_mech_type
- *
- */
-
-OM_uint32 __gss_get_mech_type(OID, token)
- gss_OID OID;
- gss_buffer_t token;
-{
- unsigned char * buffer_ptr;
- int length;
-
- /*
- * This routine reads the prefix of "token" in order to determine
- * its mechanism type. It assumes the encoding suggested in
- * Appendix B of RFC 1508. This format starts out as follows :
- *
- * tag for APPLICATION 0, Sequence[constructed, definite length]
- * length of remainder of token
- * tag of OBJECT IDENTIFIER
- * length of mechanism OID
- * encoding of mechanism OID
- * <the rest of the token>
- *
- * Numerically, this looks like :
- *
- * 0x60
- * <length> - could be multiple bytes
- * 0x06
- * <length> - assume only one byte, hence OID length < 127
- * <mech OID bytes>
- *
- * The routine fills in the OID value and returns an error as necessary.
- */
-
- if (token == NULL)
- return (GSS_S_DEFECTIVE_TOKEN);
-
- /* Skip past the APP/Sequnce byte and the token length */
-
- buffer_ptr = (unsigned char *) token->value;
-
- if (*(buffer_ptr++) != 0x60)
- return (GSS_S_DEFECTIVE_TOKEN);
- length = *buffer_ptr++;
- if (length & 0x80) {
- if ((length & 0x7f) > 4)
- return (GSS_S_DEFECTIVE_TOKEN);
- buffer_ptr += length & 0x7f;
- }
-
- if (*(buffer_ptr++) != 0x06)
- return (GSS_S_DEFECTIVE_TOKEN);
-
- OID->length = (OM_uint32) *(buffer_ptr++);
- OID->elements = (void *) buffer_ptr;
- return (GSS_S_COMPLETE);
-}
-
-
-/*
- * Internal routines to get and release an internal mechanism name
- */
-
-#include "mglueP.h"
-
-OM_uint32 __gss_import_internal_name (minor_status, mech_type, union_name,
- internal_name)
-OM_uint32 *minor_status;
-gss_OID mech_type;
-gss_union_name_t union_name;
-gss_name_t *internal_name;
-{
- OM_uint32 status;
- gss_mechanism mech;
-
- mech = __gss_get_mechanism (mech_type);
- if (mech) {
- if (mech->gss_import_name)
- status = mech->gss_import_name (
-#ifdef USE_MECH_CONTEXT
- mech->context,
-#endif
- minor_status,
- union_name->external_name,
- union_name->name_type,
- internal_name);
- else
- status = GSS_S_BAD_BINDINGS;
-
- return (status);
- }
-
- return (GSS_S_BAD_MECH);
-}
-
-OM_uint32 __gss_display_internal_name (minor_status, mech_type, internal_name,
- external_name, name_type)
-OM_uint32 *minor_status;
-gss_OID mech_type;
-gss_name_t internal_name;
-gss_buffer_t external_name;
-gss_OID *name_type;
-{
- OM_uint32 status;
- gss_mechanism mech;
-
- mech = __gss_get_mechanism (mech_type);
- if (mech) {
- if (mech->gss_display_name)
- status = mech->gss_display_name (
-#ifdef USE_MECH_CONTEXT
- mech->context,
-#endif
- minor_status,
- internal_name,
- external_name,
- name_type);
- else
- status = GSS_S_BAD_BINDINGS;
-
- return (status);
- }
-
- return (GSS_S_BAD_MECH);
-}
-
-OM_uint32 __gss_release_internal_name (minor_status, mech_type, internal_name)
-OM_uint32 *minor_status;
-gss_OID mech_type;
-gss_name_t *internal_name;
-{
- OM_uint32 status;
- gss_mechanism mech;
-
- mech = __gss_get_mechanism (mech_type);
- if (mech) {
- if (mech->gss_release_name)
- status = mech->gss_release_name (
-#ifdef USE_MECH_CONTEXT
- mech->context,
-#endif
- minor_status,
- internal_name);
- else
- status = GSS_S_BAD_BINDINGS;
-
- return (status);
- }
-
- return (GSS_S_BAD_MECH);
-}
-
-
-/*
- * This function converts an internal gssapi name to a union gssapi
- * name. Note that internal_name should be considered "consumed" by
- * this call, whether or not we return an error.
- */
-OM_uint32 __gss_convert_name_to_union_name(minor_status, mech,
- internal_name, external_name)
- OM_uint32 *minor_status;
- gss_mechanism mech;
- gss_name_t internal_name;
- gss_name_t *external_name;
-{
- OM_uint32 major_status,tmp;
- gss_union_name_t union_name;
-
- union_name = (gss_union_name_t) malloc (sizeof(gss_union_name_desc));
- if (!union_name) {
- *minor_status = ENOMEM;
- goto allocation_failure;
- }
- union_name->mech_type = 0;
- union_name->mech_name = internal_name;
- union_name->name_type = 0;
- union_name->external_name = 0;
- union_name->gss_mech = mech;
-
- major_status = generic_gss_copy_oid(minor_status, &mech->mech_type,
- &union_name->mech_type);
- if (major_status != GSS_S_COMPLETE)
- goto allocation_failure;
-
- union_name->external_name =
- (gss_buffer_t) malloc(sizeof(gss_buffer_desc));
- if (!union_name->external_name) {
- *minor_status = ENOMEM;
- goto allocation_failure;
- }
-
-#ifdef USE_MECH_CONTEXT
- major_status = mech->gss_display_name(mech->context, minor_status,
-#else
- major_status = mech->gss_display_name(minor_status,
-#endif
- internal_name,
- union_name->external_name,
- &union_name->name_type);
- if (major_status != GSS_S_COMPLETE)
- goto allocation_failure;
-
- *external_name = union_name;
- return (GSS_S_COMPLETE);
-
-allocation_failure:
- if (union_name) {
- if (union_name->external_name) {
- if (union_name->external_name->value)
- free(union_name->external_name->value);
- free(union_name->external_name);
- }
- if (union_name->name_type)
- generic_gss_release_oid(&tmp, &union_name->name_type);
- if (union_name->mech_name)
- __gss_release_internal_name(minor_status, union_name->mech_type,
- &union_name->mech_name);
- if (union_name->mech_type)
- mech_gss_release_oid(&tmp, &union_name->mech_type, mech);
- free(union_name);
- }
- return (major_status);
-}
-
-/*
- * Glue routine for returning the mechanism-specific credential from a
- * external union credential.
- */
-gss_cred_id_t
-__gss_get_mechanism_cred(union_cred, mech_type)
- gss_union_cred_t union_cred;
- gss_OID mech_type;
-{
- int i;
-
- if (union_cred == GSS_C_NO_CREDENTIAL)
- return GSS_C_NO_CREDENTIAL;
-
- for (i=0; i < union_cred->count; i++) {
- if (g_OID_equal(mech_type, &union_cred->mechs_array[i]))
- return union_cred->cred_array[i];
- }
- return GSS_C_NO_CREDENTIAL;
-}
-
-
-/*
- * Glue routine to copy an external name buffer (used by gss_duplicate_name)
- */
-OM_uint32 __gss_copy_namebuf(src, dest)
- gss_buffer_t src;
- gss_buffer_t *dest;
-{
- gss_buffer_t temp = NULL;
-
- if (dest == NULL)
- return (GSS_S_BAD_NAME);
-
- temp = (gss_buffer_t) malloc (sizeof(gss_buffer_t));
- if (!temp) {
- return(GSS_S_FAILURE);
- }
- temp->value = (void *) malloc (src->length + 1);
- if (temp->value == NULL) {
- free(temp);
- return(GSS_S_FAILURE);
- }
-
- memcpy(temp->value, src->value, src->length);
- temp->length = src->length;
-
- *dest = temp;
- return (GSS_S_COMPLETE);
-}
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