OpenSolaris_b135/lib/gss_mechs/mech_dh/backend/mech/name.c
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
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* CDDL HEADER END
*/
/*
* name.c
*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "dh_gssapi.h"
#include <pwd.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/note.h>
#include <thread.h>
extern int
get_der_length(unsigned char **, unsigned int, unsigned int *);
extern unsigned int
der_length_size(unsigned int);
extern int
put_der_length(unsigned int, unsigned char **, unsigned int);
/* Diffie-Hellman ONC RPC netname name type */
static gss_OID_desc __DH_GSS_C_NT_NETNAME_desc =
{ 9, "\053\006\004\001\052\002\032\001\001" };
const gss_OID_desc * const __DH_GSS_C_NT_NETNAME = &__DH_GSS_C_NT_NETNAME_desc;
#define OID_MAX_NAME_ENTRIES 32
/*
* __dh_gss_compare_name: Diffie-Hellman machanism support for
* gss_compare_name. Given two gss_name_ts that are presumed to
* be rpc netnames set the *equal parameter to true if they are
* the same, else set it to false.
*/
OM_uint32
__dh_gss_compare_name(void *ctx, /* Per mechanism context (not used) */
OM_uint32 *minor, /* Mechanism status */
gss_name_t name1, /* First name to compare */
gss_name_t name2, /* Second name to compare */
int *equal /* The result */)
{
_NOTE(ARGUNUSED(ctx))
if (minor == 0 || equal == 0)
return (GSS_S_CALL_INACCESSIBLE_WRITE);
*minor = DH_SUCCESS;
if (name1 == 0 || name2 == 0) {
*minor = DH_BADARG_FAILURE;
return (GSS_S_BAD_NAME | GSS_S_CALL_INACCESSIBLE_READ);
}
*equal = (strcmp((char *)name1, (char *)name2) == 0);
return (GSS_S_COMPLETE);
}
/*
* __dh_gss_display_name: Supports gss_display_name for Diffie-Hellman
* mechanism. This takes a gss internal name and converts it to
* a counted string suitable for display.
*/
OM_uint32
__dh_gss_display_name(void * ctx, /* Per mechanism context (not used) */
OM_uint32* minor, /* Mechanism status */
gss_name_t name, /* Diffie-Hellman internal name */
gss_buffer_t output, /* Were the printable name goes */
gss_OID *name_type /* Name type of the internal name */)
{
_NOTE(ARGUNUSED(ctx))
if (minor == 0 || output == 0)
return (GSS_S_CALL_INACCESSIBLE_WRITE);
if (name == 0)
return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_BAD_NAME);
*minor = DH_SUCCESS;
output->length = 0;
output->value = (void *)strdup((char *)name);
if (output->value == NULL) {
*minor = DH_NOMEM_FAILURE;
return (GSS_S_FAILURE);
}
output->length = strlen((char *)name) + 1;
/*
* Note: we no longer copy the name type OID. The current draft of
* the standard specifies:
*
* "The returned gss_OID will be a pointer into static stoarge
* and should be treated as read-only by the caller (in particular,
* it does not need to be freed)."
*
* if (name_type) {
* if ((*minor = __OID_copy(name_type, __DH_GSS_C_NT_NETNAME))
* != DH_SUCCESS) {
* free(output->value);
* output->value = NULL;
* return (GSS_S_FAILURE);
* }
* }
*/
if (name_type)
*name_type = (gss_OID) __DH_GSS_C_NT_NETNAME;
return (GSS_S_COMPLETE);
}
/*
* Routine that takes a netname as a character string and assigns it
* to a an gss_name_t pointed to by output.
*/
static OM_uint32
do_netname_nametype(OM_uint32 *minor, char *input, gss_name_t *output)
{
if (__dh_validate_principal(input) != DH_SUCCESS)
return (GSS_S_BAD_NAME);
*minor = DH_SUCCESS;
*output = (gss_name_t)strdup((char *)input);
if (*output == NULL) {
*minor = DH_NOMEM_FAILURE;
return (GSS_S_FAILURE);
}
return (GSS_S_COMPLETE);
}
/*
* do_uid_nametype converts a uid to a gss_name_t pointed to by output
*/
static OM_uint32
do_uid_nametype(OM_uint32 *minor, uid_t uid, gss_name_t *output)
{
char netname[MAXNETNAMELEN+1];
if (!user2netname(netname, uid, NULL)) {
*minor = DH_NETNAME_FAILURE;
return (GSS_S_FAILURE);
}
return (do_netname_nametype(minor, netname, output));
}
/*
* do_username_nametype converts a username to a gss_name_t pointed to by
* output.
*
* A username will be represented by the following:
* name[/node][@security-domain]
*
* Then optional security-domain will represent secure rpc domain if
* present. If not present the local domain will be used. name is the
* user name as found in the unix password file. If name is root and
* node is present, then node will represent the host. If the host is
* a qualified name we assume that it is a DNS name and will only return
* the first commponnet since we want host name that are relative to
* the security domain (secure rpc domain).
*/
static OM_uint32
do_username_nametype(OM_uint32 *minor, char *uname, gss_name_t *output)
{
char netname[MAXNETNAMELEN+1];
char *user, *node, *domain;
struct passwd pwd;
char buff[1024];
/* Set outputs to sane values */
*output = 0;
*minor = DH_SUCCESS;
/* See if we have a name */
if (uname == 0) {
*minor = DH_NO_SUCH_USER;
return (GSS_S_FAILURE);
}
/* copy the name so that we can do surgery on it */
user = strdup(uname);
if (user == 0) {
*minor = DH_NOMEM_FAILURE;
return (GSS_S_FAILURE);
}
/* Look for optional node part */
node = strchr(user, '/');
if (node) {
/*
* user is now just the user portion and node
* points to the start of the node part.
*/
*node++ = '\0';
/* Now see if there is a domain */
domain = strchr(node, '@');
}
else
/* Check for a domain */
domain = strchr(user, '@');
/* Set domain to the beginning of the domain part if pressent */
if (domain)
*domain++ = '\0';
/*
* See if the node part is important. If the user is root get
* the host from the node. If node is not present we assume
* we're the local host.
*/
if (strcmp(user, "root") == 0) {
char *dot;
/*
* We only want the host part of a qualfied host name. We
* assume the domain part of a hostname is a DNS domain,
* not an rpc domain. The rpc domain can be specified
* in the optional security domain part.
*/
if (node) {
dot = strchr(node, '.');
if (dot)
*dot = '\0';
}
/*
* If node is null, assume local host. If domain is
* null assume local domain. See host2netname(3N)
*/
if (!host2netname(netname, node, domain)) {
*minor = DH_NETNAME_FAILURE;
free(user);
return (GSS_S_FAILURE);
}
free(user);
return (do_netname_nametype(minor, netname, output));
}
/*
* We use getpwnam_r to convert the name to uid. Note it is
* important to use getpwnam_r to preserve MT safty.
*/
if (getpwnam_r(user, &pwd, buff, sizeof (buff)) == NULL) {
*minor = DH_NO_SUCH_USER;
free(user);
return (GSS_S_FAILURE);
}
/* If domain is null assume local domain. See user2netname(3N) */
if (!user2netname(netname, pwd.pw_uid, domain)) {
*minor = DH_NETNAME_FAILURE;
free(user);
return (GSS_S_FAILURE);
}
free(user);
return (do_netname_nametype(minor, netname, output));
}
/*
* do_hostbase_nametype convert a hostbase service name of the form
* service@hostname.
*
* For Diffie-Hellman we assume that the service is running with the
* credtials of the machine, i.e., as root.
*/
static OM_uint32
do_hostbase_nametype(OM_uint32 *minor, char *input, gss_name_t *output)
{
/* Get the nostname */
char *host = strchr(input, '@');
char netname[MAXNETNAMELEN+1];
/* If no host return bad name */
if (host == NULL)
return (GSS_S_BAD_NAME);
/* Advance pass the "@" sign */
host += 1;
/* Convert the hostname to its netname */
if (!host2netname(netname, host, NULL)) {
*minor = DH_NETNAME_FAILURE;
return (GSS_S_FAILURE);
}
/* Internalize the netname to output */
return (do_netname_nametype(minor, netname, output));
}
/*
* do_exported_netname: Convert an exported Diffie-Hellman name
* to a Diffie-Hellman internal name.
*/
static OM_uint32
do_exported_netname(dh_context_t ctx, /* Diffie-Hellman mech context */
OM_uint32 *minor, /* Mech status */
gss_buffer_t input, /* The export name to convert */
gss_name_t *output /* The converted internal name */)
{
/* All export names must start with this */
const char tokid[] = "\x04\x01";
const int tokid_len = 2;
const int OIDlen_len = 2;
const int namelen_len = 4;
unsigned char *p = (unsigned char *)input->value;
OM_uint32 len = input->length;
int mechoidlen;
OM_uint32 oidlen; /* includes object tag len & DER len bytes */
OM_uint32 namelen;
OM_uint32 currlen;
OM_uint32 bytes;
*minor = DH_BADARG_FAILURE;
/* The len must be at least this big */
if (len < tokid_len + OIDlen_len + namelen_len)
return (GSS_S_DEFECTIVE_TOKEN);
/* Export names must start with the token id of 0x04 0x01 */
if (memcmp(p, tokid, tokid_len) != 0)
return (GSS_S_DEFECTIVE_TOKEN);
p += tokid_len;
/* Decode the Mechanism oid */
oidlen = (*p++ << 8) & 0xff00;
oidlen |= *p++ & 0xff;
/* Check that we actually have the mechanism oid elements */
if (len < tokid_len + OIDlen_len + oidlen + namelen_len)
return (GSS_S_DEFECTIVE_TOKEN);
/* Compare that the input is for this mechanism */
if (*p++ != 0x06)
return (GSS_S_DEFECTIVE_TOKEN);
currlen = len - (tokid_len + OIDlen_len + oidlen + namelen_len);
if ((mechoidlen = get_der_length(&p, currlen, &bytes)) < 0)
return (GSS_S_DEFECTIVE_TOKEN);
if (mechoidlen != ctx->mech->length)
return (GSS_S_DEFECTIVE_TOKEN);
if (memcmp(p, ctx->mech->elements, mechoidlen) != 0)
return (GSS_S_DEFECTIVE_TOKEN);
p += mechoidlen;
/* Grab the length of the mechanism specific name per RFC 2078 */
namelen = (*p++ << 24) & 0xff000000;
namelen |= (*p++ << 16) & 0xff0000;
namelen |= (*p++ << 8) & 0xff00;
namelen |= *p++ & 0xff;
/* This should alway be false */
if (len < tokid_len + OIDlen_len + oidlen + namelen_len + namelen)
return (GSS_S_DEFECTIVE_TOKEN);
/* Make sure the bytes for the netname oid length are available */
if (namelen < OIDlen_len)
return (GSS_S_DEFECTIVE_TOKEN);
/* Get the netname oid length */
oidlen = (*p++ << 8) & 0xff00;
oidlen = *p++ & 0xff;
/* See if we have the elements of the netname oid */
if (namelen < OIDlen_len + oidlen)
return (GSS_S_DEFECTIVE_TOKEN);
/* Check that the oid is really a netname */
if (oidlen != __DH_GSS_C_NT_NETNAME->length)
return (GSS_S_DEFECTIVE_TOKEN);
if (memcmp(p, __DH_GSS_C_NT_NETNAME->elements,
__DH_GSS_C_NT_NETNAME->length) != 0)
return (GSS_S_DEFECTIVE_TOKEN);
/* p now points to the netname wich is null terminated */
p += oidlen;
/*
* How the netname is encoded in an export name type for
* this mechanism. See _dh_gss_export_name below.
*/
if (namelen != OIDlen_len + oidlen + strlen((char *)p) + 1)
return (GSS_S_DEFECTIVE_TOKEN);
/* Grab the netname */
*output = (gss_name_t)strdup((char *)p);
if (*output) {
*minor = 0;
return (GSS_S_COMPLETE);
}
*minor = DH_NOMEM_FAILURE;
return (GSS_S_FAILURE);
}
/*
* __dh_gss_import_name: Diffie-Hellman entry point for gss_import_name.
* Given an input name of a specified name type, convert this to a
* Diffie-Hellman internal name (netname).
*
* The idea here is simply compare the name_type supplied with each
* name type that we know how to deal with. If we have a match we call
* the appropriate support routine form above. If we done't have a match
* we return GSS_S_BAD_NAMETYPE
*/
OM_uint32
__dh_gss_import_name(void *ctx, /* Per mechanism context */
OM_uint32 *minor, /* Mechanism status */
gss_buffer_t input, /* The name to convert */
gss_OID name_type, /* of this name_type */
gss_name_t *output /* The converted name */)
{
char *name;
OM_uint32 stat;
if (minor == NULL || output == NULL)
return (GSS_S_CALL_INACCESSIBLE_WRITE);
if (input == NULL || input->value == NULL)
return (GSS_S_BAD_NAME | GSS_S_CALL_INACCESSIBLE_READ);
if (name_type == GSS_C_NO_OID)
return (GSS_S_BAD_NAMETYPE);
/* Set sane state */
*minor = DH_SUCCESS;
*output = GSS_C_NO_NAME;
/* UID in machine format */
if (__OID_equal(name_type, GSS_C_NT_MACHINE_UID_NAME)) {
uid_t uid;
if (input->length != sizeof (uid_t))
return (GSS_S_BAD_NAME);
uid = *(uid_t *)input->value;
/* Should we assume that the id is network byte order ??? */
/* uid = htonl(uid); No, this should be the local orfering */
return (do_uid_nametype(minor, uid, output));
/* Name that was exported with __dh_gss_export_name */
} else if (__OID_equal(name_type, GSS_C_NT_EXPORT_NAME)) {
stat = do_exported_netname((dh_context_t)ctx, minor,
input, output);
return (stat);
}
/* Null ternamte name so we can manipulate as a c-style string */
name = malloc(input->length+1);
if (name == NULL) {
*minor = DH_NOMEM_FAILURE;
return (GSS_S_FAILURE);
}
memcpy(name, input->value, input->length);
name[input->length] = '\0';
/* Diffie-Hellman (ONC RPC netname) */
if (__OID_equal(name_type, __DH_GSS_C_NT_NETNAME)) {
stat = do_netname_nametype(minor, name, output);
free(name);
return (stat);
/* Host based service name (service@hostname) */
} else if (__OID_equal(name_type, GSS_C_NT_HOSTBASED_SERVICE)) {
stat = do_hostbase_nametype(minor, name, output);
free(name);
return (stat);
/* Thus local OS user name */
} else if (__OID_equal(name_type, GSS_C_NT_USER_NAME)) {
stat = do_username_nametype(minor, name, output);
free(name);
return (stat);
/* The os user id writen as a string */
} else if (__OID_equal(name_type, GSS_C_NT_STRING_UID_NAME)) {
char *p;
/* Convert the name to a uid */
uid_t uid = (uid_t)strtol(name, &p, 0);
free(name);
if (*p != '\0')
return (GSS_S_BAD_NAME);
return (do_uid_nametype(minor, uid, output));
} else {
/* Any thing else */
free(name);
return (GSS_S_BAD_NAMETYPE);
}
}
/*
* __dh_gss_release_name: DH entry point for gss_release_name.
* Release an internal DH name.
*/
OM_uint32
__dh_gss_release_name(void *ctx, OM_uint32 *minor, gss_name_t *name)
{
_NOTE(ARGUNUSED(ctx))
if (minor == 0 || name == 0)
return (GSS_S_CALL_INACCESSIBLE_WRITE);
*minor = DH_SUCCESS;
free(*name);
*name = GSS_C_NO_NAME;
return (GSS_S_COMPLETE);
}
/* Lock for initializing oid_name_tab */
static mutex_t name_tab_lock = DEFAULTMUTEX;
/* Table of name types that this mechanism understands */
static const gss_OID_desc * oid_name_tab[OID_MAX_NAME_ENTRIES];
/*
* __dh_gss_inquire_names_for_mech: DH entry point for
* gss_inquire_names_for_mech.
*
* Return a set of OID name types that a mechanism can understand
*/
OM_uint32
__dh_gss_inquire_names_for_mech(void *ctx, OM_uint32 *minor,
gss_OID mech, gss_OID_set *names)
{
_NOTE(ARGUNUSED(ctx,mech))
/* See if we need to initialize the table */
if (oid_name_tab[0] == 0) {
mutex_lock(&name_tab_lock);
/* If nobody sneaked in, initialize the table */
if (oid_name_tab[0] == 0) {
oid_name_tab[0] = __DH_GSS_C_NT_NETNAME;
oid_name_tab[1] = GSS_C_NT_HOSTBASED_SERVICE;
oid_name_tab[2] = GSS_C_NT_USER_NAME;
oid_name_tab[3] = GSS_C_NT_MACHINE_UID_NAME;
oid_name_tab[4] = GSS_C_NT_STRING_UID_NAME;
oid_name_tab[5] = GSS_C_NT_EXPORT_NAME;
/* oid_name_tab[6] = GSS_C_NT_ANONYMOUS_NAME; */
}
mutex_unlock(&name_tab_lock);
}
/* Return the set of OIDS from the table */
if ((*minor = __OID_copy_set_from_array(names,
oid_name_tab, 6)) != DH_SUCCESS)
return (GSS_S_FAILURE);
return (GSS_S_COMPLETE);
}
/*
* Private libgss entry point to convert a principal name to uid.
*/
OM_uint32
__dh_pname_to_uid(void *ctx, /* DH mech context (not used) */
OM_uint32 *minor, /* Mech status */
const gss_name_t pname, /* principal */
uid_t *uid /* where to put the uid */)
{
_NOTE(ARGUNUSED(ctx))
gid_t gid;
gid_t glist[NGRPS];
int glen;
/* Convert the principal name to a netname */
char *netname = (char *)pname;
char host_netname[MAXNETNAMELEN+1];
if (pname == 0)
return (GSS_S_BAD_NAME | GSS_S_CALL_INACCESSIBLE_READ);
if (minor == 0 || uid == 0)
return (GSS_S_CALL_INACCESSIBLE_WRITE);
*minor = DH_SUCCESS;
*uid = UID_NOBODY;
/* First try to convert as a user */
if (netname2user(netname, uid, &gid, &glen, glist))
return (GSS_S_COMPLETE);
/* Get this hosts netname */
else if (host2netname(host_netname, NULL, NULL)) {
/*
* If the netname is this host's netname then we're root
* else we're nobody.
*/
if (strncmp(netname, host_netname, MAXNETNAMELEN) == 0)
*uid = 0;
return (GSS_S_COMPLETE);
}
/* We could not get a netname */
*minor = DH_NETNAME_FAILURE;
return (GSS_S_FAILURE);
}
/*
* __dh_gss_export_name: Diffie-Hellman support for gss_export_name.
* Given a Diffie-Hellman internal name return the GSS exported format.
*/
OM_uint32
__dh_gss_export_name(void *ctx, /* Per mechanism context */
OM_uint32 *minor, /* Mechanism status */
const gss_name_t input_name, /* The name to export */
gss_buffer_t exported_name /* Exported name goes here */)
{
/* input_name is dh principal name */
dh_principal pname = (dh_principal)input_name;
dh_context_t dc = (dh_context_t)ctx;
/* Magic for exported blobs */
const char tokid[] = "\x04\x01";
const int tokid_len = 2;
const int OIDlen_len = 2; /* Why did they do this? */
const int namelen_len = 4;
const int mechoid_tag_len = 1;
unsigned char *p;
OM_uint32 len;
OM_uint32 namelen;
OM_uint32 currlen;
OM_uint32 oid_der_len = 0;
if (minor == 0 || exported_name == GSS_C_NO_BUFFER)
return (GSS_S_CALL_INACCESSIBLE_WRITE);
if (input_name == GSS_C_NO_NAME)
return (GSS_S_CALL_INACCESSIBLE_READ);
/* Set sane outputs */
*minor = DH_SUCCESS;
exported_name->length = 0;
exported_name->value = NULL;
/* Determine the length of the name */
namelen = OIDlen_len + __DH_GSS_C_NT_NETNAME->length
+ strlen(pname)+1;
oid_der_len = der_length_size(dc->mech->length);
/* Find the total length */
len = tokid_len + OIDlen_len + mechoid_tag_len + oid_der_len
+ dc->mech->length + namelen_len + namelen;
/* Allocate the blob */
p = New(unsigned char, len);
if (p == NULL) {
*minor = DH_NOMEM_FAILURE;
return (GSS_S_FAILURE);
}
/* Set the blob to the exported name */
exported_name->length = len;
exported_name->value = p;
/* Start with some magic */
memcpy(p, tokid, tokid_len);
p += tokid_len;
/*
* The spec only allows two bytes for the oid length.
* We are assuming here that the correct encodeing is MSB first as
* was done in libgss.
*/
*p++ = ((mechoid_tag_len + oid_der_len + dc->mech->length)
& 0xff00) >> 8;
*p++ = ((mechoid_tag_len + oid_der_len + dc->mech->length)
& 0x00ff);
/* Now the mechanism OID DER Encoding */
*p++ = 0x06; /* Universal Tag for OID */
currlen = len - tokid_len - OIDlen_len - mechoid_tag_len;
if (!put_der_length(dc->mech->length, &p, currlen) == 0) {
return (GSS_S_FAILURE);
}
/* Now the mechanism OID elements */
memcpy(p, dc->mech->elements, dc->mech->length);
p += dc->mech->length;
/* The name length most MSB first */
*p++ = (namelen & 0xff000000) >> 24;
*p++ = (namelen & 0x00ff0000) >> 16;
*p++ = (namelen & 0x0000ff00) >> 8;
*p++ = (namelen & 0x000000ff);
/*
* We'll now encode the netname oid. Again we'll just use 2 bytes.
* This is the same encoding that the libgss implementor uses, so
* we'll just follow along.
*/
*p++ = (__DH_GSS_C_NT_NETNAME->length & 0xff00) >> 8;
*p++ = (__DH_GSS_C_NT_NETNAME->length &0x00ff);
/* The netname oid values */
memcpy(p, __DH_GSS_C_NT_NETNAME->elements,
__DH_GSS_C_NT_NETNAME->length);
p += __DH_GSS_C_NT_NETNAME->length;
/* Now we copy the netname including the null byte to be safe */
memcpy(p, pname, strlen(pname) + 1);
return (GSS_S_COMPLETE);
}
/*
* Support routine for __dh_internal_release_oid. Return True if
* the supplied OID points to the reference OID or if the elements
* of the reference OID are the same as the supplied OID. In the
* latter case, just free the OID container and set the pointer to it
* to GSS_C_NO_OID. Otherwise return false
*/
static int
release_oid(const gss_OID_desc * const ref, gss_OID *oid)
{
gss_OID id = *oid;
if (id == ref)
return (TRUE);
/*
* If some on create a shallow copy free, the structure point to
* id and set the pointer to it to GSS_C_NO_OID
*/
if (id->elements == ref->elements) {
Free(id);
*oid = GSS_C_NO_OID;
return (TRUE);
}
return (FALSE);
}
/*
* __dh_gss_internal_release_oid: DH support for the gss_internal_relaese_oid
* entry. Check that the refence to an oid is one of our mechanisms static
* OIDS. If it is return true indicating to libgss that we have handled the
* release of that OID. Otherwise we return false and let libgss deal with it.
*
* The only OIDS we know are the calling mechanism found in the context
* and the shared DH_GSS_C_NT_NETNAME name type
*/
OM_uint32
__dh_gss_internal_release_oid(void *ctx, OM_uint32 *minor, gss_OID *oid)
{
dh_context_t dhcxt = (dh_context_t)ctx;
if (minor == 0)
return (GSS_S_CALL_INACCESSIBLE_WRITE);
*minor = DH_SUCCESS;
if (oid == NULL || *oid == NULL)
return (GSS_S_COMPLETE);
if (release_oid(dhcxt->mech, oid))
return (GSS_S_COMPLETE);
if (release_oid(__DH_GSS_C_NT_NETNAME, oid))
return (GSS_S_COMPLETE);
return (GSS_S_FAILURE);
}