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samba-mirror/source4/libcli/auth/spnego.c

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/*
Unix SMB/CIFS implementation.
RFC2478 Compliant SPNEGO implementation
Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "auth/auth.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_AUTH
enum spnego_state_position {
SPNEGO_SERVER_START,
SPNEGO_CLIENT_START,
SPNEGO_SERVER_TARG,
SPNEGO_CLIENT_TARG,
SPNEGO_FALLBACK,
SPNEGO_DONE
};
struct spnego_state {
uint_t ref_count;
enum spnego_message_type expected_packet;
enum spnego_state_position state_position;
struct gensec_security *sub_sec_security;
};
static NTSTATUS gensec_spnego_client_start(struct gensec_security *gensec_security)
{
struct spnego_state *spnego_state;
spnego_state = talloc_p(gensec_security, struct spnego_state);
if (!spnego_state) {
return NT_STATUS_NO_MEMORY;
}
spnego_state->expected_packet = SPNEGO_NEG_TOKEN_INIT;
spnego_state->state_position = SPNEGO_CLIENT_START;
spnego_state->sub_sec_security = NULL;
gensec_security->private_data = spnego_state;
return NT_STATUS_OK;
}
static NTSTATUS gensec_spnego_server_start(struct gensec_security *gensec_security)
{
struct spnego_state *spnego_state;
spnego_state = talloc_p(gensec_security, struct spnego_state);
if (!spnego_state) {
return NT_STATUS_NO_MEMORY;
}
spnego_state->expected_packet = SPNEGO_NEG_TOKEN_INIT;
spnego_state->state_position = SPNEGO_SERVER_START;
spnego_state->sub_sec_security = NULL;
gensec_security->private_data = spnego_state;
return NT_STATUS_OK;
}
/*
wrappers for the spnego_*() functions
*/
static NTSTATUS gensec_spnego_unseal_packet(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
DATA_BLOB *sig)
{
struct spnego_state *spnego_state = gensec_security->private_data;
if (spnego_state->state_position != SPNEGO_DONE
&& spnego_state->state_position != SPNEGO_FALLBACK) {
return NT_STATUS_INVALID_PARAMETER;
}
return gensec_unseal_packet(spnego_state->sub_sec_security,
mem_ctx,
data, length,
whole_pdu, pdu_length,
sig);
}
static NTSTATUS gensec_spnego_check_packet(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
const DATA_BLOB *sig)
{
struct spnego_state *spnego_state = gensec_security->private_data;
if (spnego_state->state_position != SPNEGO_DONE
&& spnego_state->state_position != SPNEGO_FALLBACK) {
return NT_STATUS_INVALID_PARAMETER;
}
return gensec_check_packet(spnego_state->sub_sec_security,
mem_ctx,
data, length,
whole_pdu, pdu_length,
sig);
}
static NTSTATUS gensec_spnego_seal_packet(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
DATA_BLOB *sig)
{
struct spnego_state *spnego_state = gensec_security->private_data;
if (spnego_state->state_position != SPNEGO_DONE
&& spnego_state->state_position != SPNEGO_FALLBACK) {
return NT_STATUS_INVALID_PARAMETER;
}
return gensec_seal_packet(spnego_state->sub_sec_security,
mem_ctx,
data, length,
whole_pdu, pdu_length,
sig);
}
static NTSTATUS gensec_spnego_sign_packet(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
DATA_BLOB *sig)
{
struct spnego_state *spnego_state = gensec_security->private_data;
if (spnego_state->state_position != SPNEGO_DONE
&& spnego_state->state_position != SPNEGO_FALLBACK) {
return NT_STATUS_INVALID_PARAMETER;
}
return gensec_sign_packet(spnego_state->sub_sec_security,
mem_ctx,
data, length,
whole_pdu, pdu_length,
sig);
}
static size_t gensec_spnego_sig_size(struct gensec_security *gensec_security)
{
struct spnego_state *spnego_state = gensec_security->private_data;
if (spnego_state->state_position != SPNEGO_DONE
&& spnego_state->state_position != SPNEGO_FALLBACK) {
return 0;
}
return gensec_sig_size(spnego_state->sub_sec_security);
}
static NTSTATUS gensec_spnego_session_key(struct gensec_security *gensec_security,
DATA_BLOB *session_key)
{
struct spnego_state *spnego_state = gensec_security->private_data;
if (!spnego_state->sub_sec_security) {
return NT_STATUS_INVALID_PARAMETER;
}
return gensec_session_key(spnego_state->sub_sec_security,
session_key);
}
static NTSTATUS gensec_spnego_session_info(struct gensec_security *gensec_security,
struct auth_session_info **session_info)
{
struct spnego_state *spnego_state = gensec_security->private_data;
if (!spnego_state->sub_sec_security) {
return NT_STATUS_INVALID_PARAMETER;
}
return gensec_session_info(spnego_state->sub_sec_security,
session_info);
}
/** Fallback to another GENSEC mechanism, based on magic strings
*
* This is the 'fallback' case, where we don't get SPNEGO, and have to
* try all the other options (and hope they all have a magic string
* they check)
*/
static NTSTATUS gensec_spnego_server_try_fallback(struct gensec_security *gensec_security,
struct spnego_state *spnego_state,
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out)
{
int i;
int num_ops;
const struct gensec_security_ops **all_ops = gensec_security_all(&num_ops);
for (i=0; i < num_ops; i++) {
NTSTATUS nt_status;
if (!all_ops[i]->oid) {
continue;
}
if (strcasecmp(GENSEC_OID_SPNEGO,all_ops[i]->oid) == 0) {
continue;
}
nt_status = gensec_subcontext_start(gensec_security,
&spnego_state->sub_sec_security);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
/* select the sub context */
nt_status = gensec_start_mech_by_oid(spnego_state->sub_sec_security,
all_ops[i]->oid);
if (!NT_STATUS_IS_OK(nt_status)) {
gensec_end(&spnego_state->sub_sec_security);
continue;
}
nt_status = gensec_update(spnego_state->sub_sec_security,
out_mem_ctx, in, out);
if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
spnego_state->state_position = SPNEGO_FALLBACK;
return nt_status;
}
gensec_end(&spnego_state->sub_sec_security);
}
DEBUG(1, ("Failed to parse SPNEGO request\n"));
return NT_STATUS_INVALID_PARAMETER;
}
static NTSTATUS gensec_spnego_parse_negTokenInit(struct gensec_security *gensec_security,
struct spnego_state *spnego_state,
TALLOC_CTX *out_mem_ctx,
const char **mechType,
const DATA_BLOB unwrapped_in, DATA_BLOB *unwrapped_out)
{
int i;
NTSTATUS nt_status;
DATA_BLOB null_data_blob = data_blob(NULL,0);
for (i=0; mechType && mechType[i]; i++) {
nt_status = gensec_subcontext_start(gensec_security,
&spnego_state->sub_sec_security);
if (!NT_STATUS_IS_OK(nt_status)) {
break;
}
/* select the sub context */
nt_status = gensec_start_mech_by_oid(spnego_state->sub_sec_security,
mechType[i]);
if (!NT_STATUS_IS_OK(nt_status)) {
gensec_end(&spnego_state->sub_sec_security);
continue;
}
if (i == 0) {
nt_status = gensec_update(spnego_state->sub_sec_security,
out_mem_ctx,
unwrapped_in,
unwrapped_out);
} else {
/* only get the helping start blob for the first OID */
nt_status = gensec_update(spnego_state->sub_sec_security,
out_mem_ctx,
null_data_blob,
unwrapped_out);
}
if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED) && !NT_STATUS_IS_OK(nt_status)) {
DEBUG(1, ("SPNEGO(%s) NEG_TOKEN_INIT failed: %s\n",
spnego_state->sub_sec_security->ops->name, nt_errstr(nt_status)));
gensec_end(&spnego_state->sub_sec_security);
}
return nt_status;
}
if (!mechType || !mechType[i]) {
DEBUG(1, ("SPNEGO: Could not find a suitable mechtype in NEG_TOKEN_INIT\n"));
}
return NT_STATUS_INVALID_PARAMETER;
}
/** create a client negTokenInit
*
* This is the case, where the client is the first one who sends data
*/
static NTSTATUS gensec_spnego_client_negTokenInit(struct gensec_security *gensec_security,
struct spnego_state *spnego_state,
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out)
{
DATA_BLOB null_data_blob = data_blob(NULL,0);
NTSTATUS nt_status;
const char **mechTypes = NULL;
DATA_BLOB unwrapped_out = data_blob(NULL,0);
mechTypes = gensec_security_oids(out_mem_ctx, GENSEC_OID_SPNEGO);
if (!mechTypes) {
DEBUG(1, ("no GENSEC OID backends available\n"));
return NT_STATUS_INVALID_PARAMETER;
}
nt_status = gensec_subcontext_start(gensec_security,
&spnego_state->sub_sec_security);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
/* select our preferred mech */
nt_status = gensec_start_mech_by_oid(spnego_state->sub_sec_security,
mechTypes[0]);
if (!NT_STATUS_IS_OK(nt_status)) {
gensec_end(&spnego_state->sub_sec_security);
return nt_status;
}
nt_status = gensec_update(spnego_state->sub_sec_security,
out_mem_ctx, in, &unwrapped_out);
if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
struct spnego_data spnego_out;
spnego_out.type = SPNEGO_NEG_TOKEN_INIT;
spnego_out.negTokenInit.mechTypes = mechTypes;
spnego_out.negTokenInit.reqFlags = 0;
spnego_out.negTokenInit.mechListMIC = null_data_blob;
spnego_out.negTokenInit.mechToken = unwrapped_out;
if (spnego_write_data(out_mem_ctx, out, &spnego_out) == -1) {
DEBUG(1, ("Failed to write SPNEGO reply to NEG_TOKEN_INIT\n"));
return NT_STATUS_INVALID_PARAMETER;
}
/* set next state */
spnego_state->expected_packet = SPNEGO_NEG_TOKEN_TARG;
spnego_state->state_position = SPNEGO_CLIENT_TARG;
return nt_status;
}
gensec_end(&spnego_state->sub_sec_security);
DEBUG(1, ("Failed to setup SPNEGO netTokenInit request\n"));
return NT_STATUS_INVALID_PARAMETER;
}
/** create a client negTokenTarg
*
* This is the case, where the client is the first one who sends data
*/
static NTSTATUS gensec_spnego_server_negTokenTarg(struct gensec_security *gensec_security,
struct spnego_state *spnego_state,
TALLOC_CTX *out_mem_ctx,
NTSTATUS nt_status,
const DATA_BLOB unwrapped_out, DATA_BLOB *out)
{
struct spnego_data spnego_out;
DATA_BLOB null_data_blob = data_blob(NULL, 0);
/* compose reply */
spnego_out.type = SPNEGO_NEG_TOKEN_TARG;
spnego_out.negTokenTarg.responseToken = unwrapped_out;
spnego_out.negTokenTarg.mechListMIC = null_data_blob;
spnego_out.negTokenTarg.supportedMech = NULL;
if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
spnego_out.negTokenTarg.supportedMech
= spnego_state->sub_sec_security->ops->oid;
spnego_out.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
spnego_state->state_position = SPNEGO_SERVER_TARG;
} else if (NT_STATUS_IS_OK(nt_status)) {
if (unwrapped_out.data) {
spnego_out.negTokenTarg.supportedMech
= spnego_state->sub_sec_security->ops->oid;
}
spnego_out.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
spnego_state->state_position = SPNEGO_DONE;
} else {
spnego_out.negTokenTarg.negResult = SPNEGO_REJECT;
DEBUG(1, ("SPNEGO login failed: %s\n", nt_errstr(nt_status)));
spnego_state->state_position = SPNEGO_DONE;
}
if (spnego_write_data(out_mem_ctx, out, &spnego_out) == -1) {
DEBUG(1, ("Failed to write SPNEGO reply to NEG_TOKEN_TARG\n"));
return NT_STATUS_INVALID_PARAMETER;
}
spnego_state->expected_packet = SPNEGO_NEG_TOKEN_TARG;
return nt_status;
}
static NTSTATUS gensec_spnego_update(struct gensec_security *gensec_security, TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out)
{
struct spnego_state *spnego_state = gensec_security->private_data;
DATA_BLOB null_data_blob = data_blob(NULL, 0);
DATA_BLOB unwrapped_out = data_blob(NULL, 0);
struct spnego_data spnego_out;
struct spnego_data spnego;
ssize_t len;
*out = data_blob(NULL, 0);
if (!out_mem_ctx) {
out_mem_ctx = spnego_state;
}
/* and switch into the state machine */
switch (spnego_state->state_position) {
case SPNEGO_FALLBACK:
return gensec_update(spnego_state->sub_sec_security,
out_mem_ctx, in, out);
case SPNEGO_SERVER_START:
{
if (in.length) {
NTSTATUS nt_status;
len = spnego_read_data(in, &spnego);
if (len == -1) {
return gensec_spnego_server_try_fallback(gensec_security, spnego_state, out_mem_ctx, in, out);
}
/* client sent NegTargetInit, we send NegTokenTarg */
/* OK, so it's real SPNEGO, check the packet's the one we expect */
if (spnego.type != spnego_state->expected_packet) {
DEBUG(1, ("Invalid SPNEGO request: %d, expected %d\n", spnego.type,
spnego_state->expected_packet));
dump_data(1, in.data, in.length);
spnego_free_data(&spnego);
return NT_STATUS_INVALID_PARAMETER;
}
nt_status = gensec_spnego_parse_negTokenInit(gensec_security,
spnego_state,
out_mem_ctx,
spnego.negTokenInit.mechTypes,
spnego.negTokenInit.mechToken,
&unwrapped_out);
nt_status = gensec_spnego_server_negTokenTarg(gensec_security,
spnego_state,
out_mem_ctx,
nt_status,
unwrapped_out,
out);
spnego_free_data(&spnego);
return nt_status;
} else {
const char **mechlist = gensec_security_oids(out_mem_ctx, GENSEC_OID_SPNEGO);
const char *mechListMIC;
mechListMIC = talloc_asprintf(out_mem_ctx,"%s$@%s",
lp_netbios_name(),
lp_realm());
if (!mechListMIC) {
return NT_STATUS_NO_MEMORY;
}
spnego_out.type = SPNEGO_NEG_TOKEN_INIT;
spnego_out.negTokenInit.mechTypes = mechlist;
spnego_out.negTokenInit.reqFlags = 0;
spnego_out.negTokenInit.mechListMIC = data_blob_string_const(mechListMIC);
spnego_out.negTokenInit.mechToken = unwrapped_out;
if (spnego_write_data(out_mem_ctx, out, &spnego_out) == -1) {
DEBUG(1, ("Failed to write SPNEGO reply to NEG_TOKEN_INIT\n"));
return NT_STATUS_INVALID_PARAMETER;
}
/* set next state */
spnego_state->expected_packet = SPNEGO_NEG_TOKEN_TARG;
spnego_state->state_position = SPNEGO_SERVER_TARG;
return NT_STATUS_MORE_PROCESSING_REQUIRED;
}
}
case SPNEGO_CLIENT_START:
{
/* The server offers a list of mechanisms */
const char *my_mechs[] = {NULL, NULL};
NTSTATUS nt_status = NT_STATUS_INVALID_PARAMETER;
if (!in.length) {
/* client to produce negTokenInit */
return gensec_spnego_client_negTokenInit(gensec_security, spnego_state, out_mem_ctx, in, out);
}
len = spnego_read_data(in, &spnego);
if (len == -1) {
DEBUG(1, ("Invalid SPNEGO request:\n"));
dump_data(1, in.data, in.length);
return NT_STATUS_INVALID_PARAMETER;
}
/* OK, so it's real SPNEGO, check the packet's the one we expect */
if (spnego.type != spnego_state->expected_packet) {
DEBUG(1, ("Invalid SPNEGO request: %d, expected %d\n", spnego.type,
spnego_state->expected_packet));
dump_data(1, in.data, in.length);
spnego_free_data(&spnego);
return NT_STATUS_INVALID_PARAMETER;
}
if (spnego.negTokenInit.targetPrincipal) {
DEBUG(5, ("Server claims it's principal name is %s\n", spnego.negTokenInit.targetPrincipal));
nt_status = gensec_set_target_principal(gensec_security,
spnego.negTokenInit.targetPrincipal);
if (!NT_STATUS_IS_OK(nt_status)) {
spnego_free_data(&spnego);
return nt_status;
}
}
nt_status = gensec_spnego_parse_negTokenInit(gensec_security,
spnego_state,
out_mem_ctx,
spnego.negTokenInit.mechTypes,
spnego.negTokenInit.mechToken,
&unwrapped_out);
if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED) && !NT_STATUS_IS_OK(nt_status)) {
spnego_free_data(&spnego);
return nt_status;
}
/* compose reply */
my_mechs[0] = spnego_state->sub_sec_security->ops->oid;
spnego_out.type = SPNEGO_NEG_TOKEN_INIT;
spnego_out.negTokenInit.mechTypes = my_mechs;
spnego_out.negTokenInit.reqFlags = 0;
spnego_out.negTokenInit.mechListMIC = null_data_blob;
spnego_out.negTokenInit.mechToken = unwrapped_out;
if (spnego_write_data(out_mem_ctx, out, &spnego_out) == -1) {
DEBUG(1, ("Failed to write SPNEGO reply to NEG_TOKEN_INIT\n"));
return NT_STATUS_INVALID_PARAMETER;
}
/* set next state */
spnego_state->expected_packet = SPNEGO_NEG_TOKEN_TARG;
spnego_state->state_position = SPNEGO_CLIENT_TARG;
return NT_STATUS_MORE_PROCESSING_REQUIRED;
}
case SPNEGO_SERVER_TARG:
{
NTSTATUS nt_status;
if (!in.length) {
return NT_STATUS_INVALID_PARAMETER;
}
len = spnego_read_data(in, &spnego);
if (len == -1) {
DEBUG(1, ("Invalid SPNEGO request:\n"));
dump_data(1, in.data, in.length);
return NT_STATUS_INVALID_PARAMETER;
}
/* OK, so it's real SPNEGO, check the packet's the one we expect */
if (spnego.type != spnego_state->expected_packet) {
DEBUG(1, ("Invalid SPNEGO request: %d, expected %d\n", spnego.type,
spnego_state->expected_packet));
dump_data(1, in.data, in.length);
spnego_free_data(&spnego);
return NT_STATUS_INVALID_PARAMETER;
}
nt_status = gensec_update(spnego_state->sub_sec_security,
out_mem_ctx,
spnego.negTokenTarg.responseToken,
&unwrapped_out);
nt_status = gensec_spnego_server_negTokenTarg(gensec_security,
spnego_state,
out_mem_ctx,
nt_status,
unwrapped_out,
out);
spnego_free_data(&spnego);
return nt_status;
}
case SPNEGO_CLIENT_TARG:
{
NTSTATUS nt_status;
if (!in.length) {
return NT_STATUS_INVALID_PARAMETER;
}
len = spnego_read_data(in, &spnego);
if (len == -1) {
DEBUG(1, ("Invalid SPNEGO request:\n"));
dump_data(1, in.data, in.length);
return NT_STATUS_INVALID_PARAMETER;
}
/* OK, so it's real SPNEGO, check the packet's the one we expect */
if (spnego.type != spnego_state->expected_packet) {
DEBUG(1, ("Invalid SPNEGO request: %d, expected %d\n", spnego.type,
spnego_state->expected_packet));
dump_data(1, in.data, in.length);
spnego_free_data(&spnego);
return NT_STATUS_INVALID_PARAMETER;
}
if (spnego.negTokenTarg.negResult == SPNEGO_REJECT) {
return NT_STATUS_ACCESS_DENIED;
}
nt_status = gensec_update(spnego_state->sub_sec_security,
out_mem_ctx,
spnego.negTokenTarg.responseToken,
&unwrapped_out);
if (NT_STATUS_IS_OK(nt_status)
&& (spnego.negTokenTarg.negResult != SPNEGO_ACCEPT_COMPLETED)) {
DEBUG(1,("gensec_update ok but not accepted\n"));
nt_status = NT_STATUS_INVALID_PARAMETER;
}
spnego_free_data(&spnego);
if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
/* compose reply */
spnego_out.type = SPNEGO_NEG_TOKEN_TARG;
spnego_out.negTokenTarg.negResult = SPNEGO_NONE_RESULT;
spnego_out.negTokenTarg.supportedMech = NULL;
spnego_out.negTokenTarg.responseToken = unwrapped_out;
spnego_out.negTokenTarg.mechListMIC = null_data_blob;
if (spnego_write_data(out_mem_ctx, out, &spnego_out) == -1) {
DEBUG(1, ("Failed to write SPNEGO reply to NEG_TOKEN_TARG\n"));
return NT_STATUS_INVALID_PARAMETER;
}
spnego_state->state_position = SPNEGO_CLIENT_TARG;
} else if (NT_STATUS_IS_OK(nt_status)) {
/* all done - server has accepted, and we agree */
if (unwrapped_out.length) {
spnego_out.type = SPNEGO_NEG_TOKEN_TARG;
spnego_out.negTokenTarg.negResult = SPNEGO_NONE_RESULT;
spnego_out.negTokenTarg.supportedMech = NULL;
spnego_out.negTokenTarg.responseToken = unwrapped_out;
spnego_out.negTokenTarg.mechListMIC = null_data_blob;
if (spnego_write_data(out_mem_ctx, out, &spnego_out) == -1) {
DEBUG(1, ("Failed to write SPNEGO reply to NEG_TOKEN_TARG\n"));
return NT_STATUS_INVALID_PARAMETER;
}
} else {
*out = null_data_blob;
}
spnego_state->state_position = SPNEGO_DONE;
} else {
DEBUG(1, ("SPNEGO(%s) login failed: %s\n",
spnego_state->sub_sec_security->ops->name,
nt_errstr(nt_status)));
}
return nt_status;
}
case SPNEGO_DONE:
return NT_STATUS_OK;
}
return NT_STATUS_INVALID_PARAMETER;
}
static void gensec_spnego_end(struct gensec_security *gensec_security)
{
struct spnego_state *spnego_state = gensec_security->private_data;
if (spnego_state->sub_sec_security) {
gensec_end(&spnego_state->sub_sec_security);
}
talloc_free(spnego_state);
gensec_security->private_data = NULL;
}
static const struct gensec_security_ops gensec_spnego_security_ops = {
.name = "spnego",
.sasl_name = "GSS-SPNEGO",
.auth_type = DCERPC_AUTH_TYPE_SPNEGO,
.oid = GENSEC_OID_SPNEGO,
.client_start = gensec_spnego_client_start,
.server_start = gensec_spnego_server_start,
.update = gensec_spnego_update,
.seal_packet = gensec_spnego_seal_packet,
.sign_packet = gensec_spnego_sign_packet,
.sig_size = gensec_spnego_sig_size,
.check_packet = gensec_spnego_check_packet,
.unseal_packet = gensec_spnego_unseal_packet,
.session_key = gensec_spnego_session_key,
.session_info = gensec_spnego_session_info,
.end = gensec_spnego_end
};
NTSTATUS gensec_spnego_init(void)
{
NTSTATUS ret;
ret = gensec_register(&gensec_spnego_security_ops);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(0,("Failed to register '%s' gensec backend!\n",
gensec_spnego_security_ops.name));
return ret;
}
return ret;
}