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mirror of https://github.com/samba-team/samba.git synced 2025-02-23 09:57:40 +03:00

s3-dcerpc: use common spengo wrapper code for client SPNEGO/NTLMSSP

This commit is contained in:
Simo Sorce 2010-07-29 19:55:44 -04:00
parent 984438ca15
commit 186f93633b
5 changed files with 321 additions and 162 deletions

View File

@ -105,7 +105,7 @@ struct gse_context;
struct pipe_auth_data {
enum dcerpc_AuthType auth_type;
enum pipe_auth_type_spnego spnego_type;
enum pipe_auth_type_spnego spnego_type; /* used by server only */
enum dcerpc_AuthLevel auth_level;
union {

View File

@ -524,6 +524,7 @@ static NTSTATUS add_spnego_auth_footer(struct spnego_context *spnego_ctx,
{
enum dcerpc_AuthType auth_type;
struct gse_context *gse_ctx;
struct auth_ntlmssp_state *ntlmssp_ctx;
void *auth_ctx;
NTSTATUS status;
@ -548,8 +549,15 @@ static NTSTATUS add_spnego_auth_footer(struct spnego_context *spnego_ctx,
auth_level, rpc_out);
break;
case DCERPC_AUTH_LEVEL_INTEGRITY:
status = NT_STATUS_NOT_IMPLEMENTED;
case DCERPC_AUTH_TYPE_NTLMSSP:
ntlmssp_ctx = talloc_get_type(auth_ctx,
struct auth_ntlmssp_state);
if (!ntlmssp_ctx) {
status = NT_STATUS_INTERNAL_ERROR;
break;
}
status = add_ntlmssp_auth_footer(ntlmssp_ctx,
auth_level, rpc_out);
break;
default:
@ -560,6 +568,55 @@ static NTSTATUS add_spnego_auth_footer(struct spnego_context *spnego_ctx,
return status;
}
static NTSTATUS get_spnego_auth_footer(TALLOC_CTX *mem_ctx,
struct spnego_context *sp_ctx,
enum dcerpc_AuthLevel auth_level,
DATA_BLOB *data, DATA_BLOB *full_pkt,
DATA_BLOB *auth_token)
{
enum dcerpc_AuthType auth_type;
struct auth_ntlmssp_state *ntlmssp_ctx;
struct gse_context *gse_ctx;
void *auth_ctx;
NTSTATUS status;
status = spnego_get_negotiated_mech(sp_ctx, &auth_type, &auth_ctx);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
switch (auth_type) {
case DCERPC_AUTH_TYPE_KRB5:
gse_ctx = talloc_get_type(auth_ctx,
struct gse_context);
if (!gse_ctx) {
return NT_STATUS_INVALID_PARAMETER;
}
DEBUG(10, ("KRB5 auth\n"));
return get_gssapi_auth_footer(mem_ctx, gse_ctx,
auth_level,
data, full_pkt,
auth_token);
case DCERPC_AUTH_TYPE_NTLMSSP:
ntlmssp_ctx = talloc_get_type(auth_ctx,
struct auth_ntlmssp_state);
if (!ntlmssp_ctx) {
return NT_STATUS_INVALID_PARAMETER;
}
DEBUG(10, ("NTLMSSP auth\n"));
return get_ntlmssp_auth_footer(ntlmssp_ctx,
auth_level,
data, full_pkt,
auth_token);
default:
return NT_STATUS_INVALID_PARAMETER;
}
}
/**
* @brief Append an auth footer according to what is the current mechanism
*
@ -618,12 +675,16 @@ NTSTATUS dcerpc_add_auth_footer(struct pipe_auth_data *auth,
status = NT_STATUS_OK;
break;
case DCERPC_AUTH_TYPE_SPNEGO:
if (auth->spnego_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP) {
return add_spnego_auth_footer(auth->a_u.spnego_state,
auth->auth_level,
rpc_out);
if (auth->spnego_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP) {
/* compat for server code */
return add_ntlmssp_auth_footer(
auth->a_u.auth_ntlmssp_state,
auth->auth_level,
rpc_out);
}
/* fall thorugh */
status = add_spnego_auth_footer(auth->a_u.spnego_state,
auth->auth_level, rpc_out);
break;
case DCERPC_AUTH_TYPE_NTLMSSP:
status = add_ntlmssp_auth_footer(auth->a_u.auth_ntlmssp_state,
auth->auth_level,
@ -731,26 +792,12 @@ NTSTATUS dcerpc_check_auth(struct pipe_auth_data *auth,
return NT_STATUS_OK;
case DCERPC_AUTH_TYPE_SPNEGO:
if (auth->spnego_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP) {
enum dcerpc_AuthType auth_type;
struct gse_context *gse_ctx;
void *auth_ctx;
if (auth->spnego_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP) {
/* compat for server code */
DEBUG(10, ("NTLMSSP auth\n"));
status = spnego_get_negotiated_mech(
auth->a_u.spnego_state,
&auth_type, &auth_ctx);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
gse_ctx = talloc_get_type(auth_ctx,
struct gse_context);
if (!gse_ctx) {
return NT_STATUS_INVALID_PARAMETER;
}
DEBUG(10, ("KRB5 auth\n"));
status = get_gssapi_auth_footer(pkt, gse_ctx,
status = get_ntlmssp_auth_footer(
auth->a_u.auth_ntlmssp_state,
auth->auth_level,
&data, &full_pkt,
&auth_info.credentials);
@ -759,7 +806,16 @@ NTSTATUS dcerpc_check_auth(struct pipe_auth_data *auth,
}
break;
}
/* fall through */
status = get_spnego_auth_footer(pkt, auth->a_u.spnego_state,
auth->auth_level,
&data, &full_pkt,
&auth_info.credentials);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
break;
case DCERPC_AUTH_TYPE_NTLMSSP:
DEBUG(10, ("NTLMSSP auth\n"));

View File

@ -19,6 +19,8 @@
#include "includes.h"
#include "../libcli/auth/spnego.h"
#include "include/ntlmssp_wrap.h"
#include "librpc/gen_ndr/ntlmssp.h"
#include "dcerpc_spnego.h"
#include "dcerpc_gssapi.h"
@ -26,7 +28,7 @@ struct spnego_context {
enum dcerpc_AuthType auth_type;
union {
struct auth_ntlmssp_state *auth_ntlmssp_state;
struct auth_ntlmssp_state *ntlmssp_state;
struct gse_context *gssapi_state;
} mech_ctx;
@ -88,12 +90,80 @@ NTSTATUS spnego_gssapi_init_client(TALLOC_CTX *mem_ctx,
return NT_STATUS_OK;
}
NTSTATUS spnego_ntlmssp_init_client(TALLOC_CTX *mem_ctx,
enum dcerpc_AuthLevel auth_level,
const char *domain,
const char *username,
const char *password,
struct spnego_context **spnego_ctx)
{
struct spnego_context *sp_ctx;
NTSTATUS status;
status = spnego_context_init(mem_ctx,
DCERPC_AUTH_TYPE_NTLMSSP, &sp_ctx);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = auth_ntlmssp_client_start(sp_ctx,
global_myname(),
lp_workgroup(),
lp_client_ntlmv2_auth(),
&sp_ctx->mech_ctx.ntlmssp_state);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(sp_ctx);
return status;
}
status = auth_ntlmssp_set_username(sp_ctx->mech_ctx.ntlmssp_state,
username);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(sp_ctx);
return status;
}
status = auth_ntlmssp_set_domain(sp_ctx->mech_ctx.ntlmssp_state,
domain);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(sp_ctx);
return status;
}
status = auth_ntlmssp_set_password(sp_ctx->mech_ctx.ntlmssp_state,
password);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(sp_ctx);
return status;
}
/*
* Turn off sign+seal to allow selected auth level to turn it back on.
*/
auth_ntlmssp_and_flags(sp_ctx->mech_ctx.ntlmssp_state,
~(NTLMSSP_NEGOTIATE_SIGN |
NTLMSSP_NEGOTIATE_SEAL));
if (auth_level == DCERPC_AUTH_LEVEL_INTEGRITY) {
auth_ntlmssp_or_flags(sp_ctx->mech_ctx.ntlmssp_state,
NTLMSSP_NEGOTIATE_SIGN);
} else if (auth_level == DCERPC_AUTH_LEVEL_PRIVACY) {
auth_ntlmssp_or_flags(sp_ctx->mech_ctx.ntlmssp_state,
NTLMSSP_NEGOTIATE_SEAL |
NTLMSSP_NEGOTIATE_SIGN);
}
*spnego_ctx = sp_ctx;
return NT_STATUS_OK;
}
NTSTATUS spnego_get_client_auth_token(TALLOC_CTX *mem_ctx,
struct spnego_context *sp_ctx,
DATA_BLOB *spnego_in,
DATA_BLOB *spnego_out)
{
struct gse_context *gse_ctx;
struct auth_ntlmssp_state *ntlmssp_ctx;
struct spnego_data sp_in, sp_out;
DATA_BLOB token_in = data_blob_null;
DATA_BLOB token_out = data_blob_null;
@ -129,6 +199,7 @@ NTSTATUS spnego_get_client_auth_token(TALLOC_CTX *mem_ctx,
if (sp_ctx->state == SPNEGO_CONV_AUTH_CONFIRM) {
if (sp_in.negTokenTarg.negResult == SPNEGO_ACCEPT_COMPLETED) {
sp_ctx->state = SPNEGO_CONV_AUTH_DONE;
*spnego_out = data_blob_null;
status = NT_STATUS_OK;
} else {
status = NT_STATUS_ACCESS_DENIED;
@ -152,8 +223,21 @@ NTSTATUS spnego_get_client_auth_token(TALLOC_CTX *mem_ctx,
break;
case DCERPC_AUTH_TYPE_NTLMSSP:
status = NT_STATUS_NOT_IMPLEMENTED;
goto done;
ntlmssp_ctx = sp_ctx->mech_ctx.ntlmssp_state;
status = auth_ntlmssp_update(ntlmssp_ctx,
token_in, &token_out);
if (NT_STATUS_EQUAL(status,
NT_STATUS_MORE_PROCESSING_REQUIRED)) {
mech_wants_more = true;
} else if (!NT_STATUS_IS_OK(status)) {
goto done;
}
mech_oids[0] = OID_NTLMSSP;
break;
default:
status = NT_STATUS_INTERNAL_ERROR;
goto done;
@ -227,6 +311,8 @@ bool spnego_require_more_processing(struct spnego_context *sp_ctx)
case DCERPC_AUTH_TYPE_KRB5:
gse_ctx = sp_ctx->mech_ctx.gssapi_state;
return gse_require_more_processing(gse_ctx);
case DCERPC_AUTH_TYPE_NTLMSSP:
return false;
default:
DEBUG(0, ("Unsupported type in request!\n"));
return false;
@ -242,7 +328,7 @@ NTSTATUS spnego_get_negotiated_mech(struct spnego_context *sp_ctx,
*auth_context = sp_ctx->mech_ctx.gssapi_state;
break;
case DCERPC_AUTH_TYPE_NTLMSSP:
*auth_context = sp_ctx->mech_ctx.auth_ntlmssp_state;
*auth_context = sp_ctx->mech_ctx.ntlmssp_state;
break;
default:
return NT_STATUS_INTERNAL_ERROR;
@ -252,3 +338,17 @@ NTSTATUS spnego_get_negotiated_mech(struct spnego_context *sp_ctx,
return NT_STATUS_OK;
}
DATA_BLOB spnego_get_session_key(struct spnego_context *sp_ctx)
{
switch (sp_ctx->auth_type) {
case DCERPC_AUTH_TYPE_KRB5:
return gse_get_session_key(sp_ctx->mech_ctx.gssapi_state);
case DCERPC_AUTH_TYPE_NTLMSSP:
return auth_ntlmssp_get_session_key(
sp_ctx->mech_ctx.ntlmssp_state);
default:
DEBUG(0, ("Unsupported type in request!\n"));
return data_blob_null;
}
}

View File

@ -31,6 +31,12 @@ NTSTATUS spnego_gssapi_init_client(TALLOC_CTX *mem_ctx,
const char *password,
uint32_t add_gss_c_flags,
struct spnego_context **spengo_ctx);
NTSTATUS spnego_ntlmssp_init_client(TALLOC_CTX *mem_ctx,
enum dcerpc_AuthLevel auth_level,
const char *domain,
const char *username,
const char *password,
struct spnego_context **spnego_ctx);
NTSTATUS spnego_get_client_auth_token(TALLOC_CTX *mem_ctx,
struct spnego_context *sp_ctx,
@ -43,4 +49,5 @@ NTSTATUS spnego_get_negotiated_mech(struct spnego_context *sp_ctx,
enum dcerpc_AuthType *auth_type,
void **auth_context);
DATA_BLOB spnego_get_session_key(struct spnego_context *sp_ctx);
#endif /* _DCERPC_SPENGO_H_ */

View File

@ -1247,20 +1247,7 @@ static NTSTATUS create_rpc_bind_req(TALLOC_CTX *mem_ctx,
break;
case DCERPC_AUTH_TYPE_SPNEGO:
switch (auth->spnego_type) {
case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
ret = create_spnego_ntlmssp_auth_rpc_bind_req(cli,
auth->auth_level,
&auth_info);
break;
case PIPE_AUTH_TYPE_SPNEGO_KRB5:
ret = create_spnego_auth_bind_req(cli, auth,
&auth_info);
break;
default:
return NT_STATUS_INTERNAL_ERROR;
}
ret = create_spnego_auth_bind_req(cli, auth, &auth_info);
if (!NT_STATUS_IS_OK(ret)) {
return ret;
}
@ -1331,17 +1318,17 @@ static NTSTATUS calculate_data_len_tosend(struct rpc_pipe_client *cli,
/* Treat the same for all authenticated rpc requests. */
switch(cli->auth->auth_type) {
case DCERPC_AUTH_TYPE_SPNEGO:
switch (cli->auth->spnego_type) {
case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
status = spnego_get_negotiated_mech(
cli->auth->a_u.spnego_state,
&auth_type, &auth_ctx);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
switch (auth_type) {
case DCERPC_AUTH_TYPE_NTLMSSP:
*p_auth_len = NTLMSSP_SIG_SIZE;
break;
case PIPE_AUTH_TYPE_SPNEGO_KRB5:
status = spnego_get_negotiated_mech(
cli->auth->a_u.spnego_state,
&auth_type, &auth_ctx);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
case DCERPC_AUTH_TYPE_KRB5:
gse_ctx = talloc_get_type(auth_ctx,
struct gse_context);
if (!gse_ctx) {
@ -1986,36 +1973,24 @@ static void rpc_pipe_bind_step_one_done(struct tevent_req *subreq)
break;
case DCERPC_AUTH_TYPE_SPNEGO:
switch (pauth->spnego_type) {
case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
/* Need to send alter context request and reply. */
status = rpc_finish_spnego_ntlmssp_bind_send(req,
state, &auth.credentials);
break;
case PIPE_AUTH_TYPE_SPNEGO_KRB5:
status = spnego_get_client_auth_token(state,
status = spnego_get_client_auth_token(state,
pauth->a_u.spnego_state,
&auth.credentials,
&auth_token);
if (!NT_STATUS_IS_OK(status)) {
break;
}
if (auth_token.length == 0) {
/* Bind complete. */
tevent_req_done(req);
return;
}
if (spnego_require_more_processing(pauth->a_u.spnego_state)) {
status = rpc_bind_next_send(req, state,
&auth_token);
} else {
status = rpc_bind_finish_send(req, state,
&auth_token);
}
if (!NT_STATUS_IS_OK(status)) {
break;
default:
status = NT_STATUS_INTERNAL_ERROR;
}
if (auth_token.length == 0) {
/* Bind complete. */
tevent_req_done(req);
return;
}
if (spnego_require_more_processing(pauth->a_u.spnego_state)) {
status = rpc_bind_next_send(req, state,
&auth_token);
} else {
status = rpc_bind_finish_send(req, state,
&auth_token);
}
break;
@ -2358,12 +2333,31 @@ bool rpccli_is_connected(struct rpc_pipe_client *rpc_cli)
bool rpccli_get_pwd_hash(struct rpc_pipe_client *rpc_cli, uint8_t nt_hash[16])
{
struct auth_ntlmssp_state *a = NULL;
struct cli_state *cli;
if ((rpc_cli->auth->auth_type == DCERPC_AUTH_TYPE_NTLMSSP)
|| ((rpc_cli->auth->auth_type == DCERPC_AUTH_TYPE_SPNEGO
&& rpc_cli->auth->spnego_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP))) {
memcpy(nt_hash, auth_ntlmssp_get_nt_hash(rpc_cli->auth->a_u.auth_ntlmssp_state), 16);
if (rpc_cli->auth->auth_type == DCERPC_AUTH_TYPE_NTLMSSP) {
a = rpc_cli->auth->a_u.auth_ntlmssp_state;
} else if (rpc_cli->auth->auth_type == DCERPC_AUTH_TYPE_SPNEGO) {
enum dcerpc_AuthType auth_type;
void *auth_ctx;
NTSTATUS status;
status = spnego_get_negotiated_mech(
rpc_cli->auth->a_u.spnego_state,
&auth_type, &auth_ctx);
if (!NT_STATUS_IS_OK(status)) {
return false;
}
if (auth_type == DCERPC_AUTH_TYPE_NTLMSSP) {
a = talloc_get_type(auth_ctx,
struct auth_ntlmssp_state);
}
}
if (a) {
memcpy(nt_hash, auth_ntlmssp_get_nt_hash(a), 16);
return true;
}
@ -2408,7 +2402,6 @@ static int cli_auth_ntlmssp_data_destructor(struct pipe_auth_data *auth)
static NTSTATUS rpccli_ntlmssp_bind_data(TALLOC_CTX *mem_ctx,
enum dcerpc_AuthType auth_type,
enum pipe_auth_type_spnego spnego_type,
enum dcerpc_AuthLevel auth_level,
const char *domain,
const char *username,
@ -2424,7 +2417,6 @@ static NTSTATUS rpccli_ntlmssp_bind_data(TALLOC_CTX *mem_ctx,
}
result->auth_type = auth_type;
result->spnego_type = spnego_type;
result->auth_level = auth_level;
result->user_name = talloc_strdup(result, username);
@ -3056,20 +3048,18 @@ NTSTATUS cli_rpc_pipe_open_noauth(struct cli_state *cli,
Open a named pipe to an SMB server and bind using NTLMSSP or SPNEGO NTLMSSP
****************************************************************************/
static NTSTATUS cli_rpc_pipe_open_ntlmssp_internal(struct cli_state *cli,
const struct ndr_syntax_id *interface,
enum dcerpc_transport_t transport,
bool use_spnego,
enum dcerpc_AuthLevel auth_level,
const char *domain,
const char *username,
const char *password,
struct rpc_pipe_client **presult)
NTSTATUS cli_rpc_pipe_open_ntlmssp(struct cli_state *cli,
const struct ndr_syntax_id *interface,
enum dcerpc_transport_t transport,
enum dcerpc_AuthLevel auth_level,
const char *domain,
const char *username,
const char *password,
struct rpc_pipe_client **presult)
{
struct rpc_pipe_client *result;
struct pipe_auth_data *auth;
enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NTLMSSP;
enum pipe_auth_type_spnego spnego_type = PIPE_AUTH_TYPE_SPNEGO_NONE;
NTSTATUS status;
status = cli_rpc_pipe_open(cli, transport, interface, &result);
@ -3077,13 +3067,8 @@ static NTSTATUS cli_rpc_pipe_open_ntlmssp_internal(struct cli_state *cli,
return status;
}
if (use_spnego) {
auth_type = DCERPC_AUTH_TYPE_SPNEGO;
spnego_type = PIPE_AUTH_TYPE_SPNEGO_NTLMSSP;
}
status = rpccli_ntlmssp_bind_data(result,
auth_type, spnego_type, auth_level,
auth_type, auth_level,
domain, username, password,
&auth);
if (!NT_STATUS_IS_OK(status)) {
@ -3113,56 +3098,6 @@ static NTSTATUS cli_rpc_pipe_open_ntlmssp_internal(struct cli_state *cli,
return status;
}
/****************************************************************************
External interface.
Open a named pipe to an SMB server and bind using NTLMSSP (bind type 10)
****************************************************************************/
NTSTATUS cli_rpc_pipe_open_ntlmssp(struct cli_state *cli,
const struct ndr_syntax_id *interface,
enum dcerpc_transport_t transport,
enum dcerpc_AuthLevel auth_level,
const char *domain,
const char *username,
const char *password,
struct rpc_pipe_client **presult)
{
return cli_rpc_pipe_open_ntlmssp_internal(cli,
interface,
transport,
false,
auth_level,
domain,
username,
password,
presult);
}
/****************************************************************************
External interface.
Open a named pipe to an SMB server and bind using spnego NTLMSSP (bind type 9)
****************************************************************************/
NTSTATUS cli_rpc_pipe_open_spnego_ntlmssp(struct cli_state *cli,
const struct ndr_syntax_id *interface,
enum dcerpc_transport_t transport,
enum dcerpc_AuthLevel auth_level,
const char *domain,
const char *username,
const char *password,
struct rpc_pipe_client **presult)
{
return cli_rpc_pipe_open_ntlmssp_internal(cli,
interface,
transport,
true,
auth_level,
domain,
username,
password,
presult);
}
/****************************************************************************
Get a the schannel session key out of an already opened netlogon pipe.
****************************************************************************/
@ -3562,6 +3497,74 @@ err_out:
return status;
}
NTSTATUS cli_rpc_pipe_open_spnego_ntlmssp(struct cli_state *cli,
const struct ndr_syntax_id *interface,
enum dcerpc_transport_t transport,
enum dcerpc_AuthLevel auth_level,
const char *domain,
const char *username,
const char *password,
struct rpc_pipe_client **presult)
{
struct rpc_pipe_client *result;
struct pipe_auth_data *auth;
NTSTATUS status;
status = cli_rpc_pipe_open(cli, transport, interface, &result);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
auth = talloc(result, struct pipe_auth_data);
if (auth == NULL) {
status = NT_STATUS_NO_MEMORY;
goto err_out;
}
auth->auth_type = DCERPC_AUTH_TYPE_SPNEGO;
auth->auth_level = auth_level;
if (!username) {
username = "";
}
auth->user_name = talloc_strdup(auth, username);
if (!auth->user_name) {
status = NT_STATUS_NO_MEMORY;
goto err_out;
}
if (!domain) {
domain = "";
}
auth->domain = talloc_strdup(auth, domain);
if (!auth->domain) {
status = NT_STATUS_NO_MEMORY;
goto err_out;
}
status = spnego_ntlmssp_init_client(auth, auth->auth_level,
domain, username, password,
&auth->a_u.spnego_state);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("spnego_init_client returned %s\n",
nt_errstr(status)));
goto err_out;
}
status = rpc_pipe_bind(result, auth);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("cli_rpc_pipe_bind failed with error %s\n",
nt_errstr(status)));
goto err_out;
}
*presult = result;
return NT_STATUS_OK;
err_out:
TALLOC_FREE(result);
return status;
}
NTSTATUS cli_get_session_key(TALLOC_CTX *mem_ctx,
struct rpc_pipe_client *cli,
DATA_BLOB *session_key)
@ -3583,15 +3586,8 @@ NTSTATUS cli_get_session_key(TALLOC_CTX *mem_ctx,
16);
break;
case DCERPC_AUTH_TYPE_SPNEGO:
switch (cli->auth->spnego_type) {
case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
sk = auth_ntlmssp_get_session_key(
a->a_u.auth_ntlmssp_state);
break;
case PIPE_AUTH_TYPE_SPNEGO_KRB5:
sk = gse_get_session_key(a->a_u.gssapi_state);
break;
default:
sk = spnego_get_session_key(a->a_u.spnego_state);
if (sk.length == 0) {
return NT_STATUS_NO_USER_SESSION_KEY;
}
break;