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/*
* Unix SMB/CIFS implementation.
* RPC Pipe client / server routines
* Largely rewritten by Jeremy Allison 2005.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "../librpc/gen_ndr/ndr_schannel.h"
#include "../librpc/gen_ndr/ndr_netlogon.h"
#include "../libcli/auth/schannel.h"
#include "rpc_client/cli_netlogon.h"
#include "rpc_client/cli_pipe.h"
#include "librpc/rpc/dcerpc.h"
#include "passdb.h"
#include "../libcli/smb/smbXcli_base.h"
#include "libcli/auth/netlogon_creds_cli.h"
#include "auth/gensec/gensec.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_CLI
/****************************************************************************
Open a named pipe to an SMB server and bind using schannel (bind type 68).
Fetch the session key ourselves using a temporary netlogon pipe.
****************************************************************************/
NTSTATUS cli_rpc_pipe_open_schannel(struct cli_state *cli,
struct messaging_context *msg_ctx,
const struct ndr_interface_table *table,
enum dcerpc_transport_t transport,
const char *domain,
const char *remote_name,
const struct sockaddr_storage *remote_sockaddr,
struct rpc_pipe_client **presult,
TALLOC_CTX *mem_ctx,
struct netlogon_creds_cli_context **pcreds)
{
TALLOC_CTX *frame = talloc_stackframe();
struct rpc_pipe_client *result = NULL;
NTSTATUS status;
struct cli_credentials *cli_creds = NULL;
struct netlogon_creds_cli_context *netlogon_creds = NULL;
struct netlogon_creds_CredentialState *creds = NULL;
uint32_t netlogon_flags;
bool authenticate_kerberos;
status = pdb_get_trust_credentials(domain, NULL,
frame, &cli_creds);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(frame);
return status;
}
cli_credentials_add_gensec_features(cli_creds,
GENSEC_FEATURE_NO_DELEGATION,
CRED_SPECIFIED);
status = rpccli_create_netlogon_creds_ctx(cli_creds,
remote_name,
msg_ctx,
frame,
&netlogon_creds);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(frame);
return status;
}
if (table == &ndr_table_netlogon) {
status = rpccli_connect_netlogon(cli,
transport,
remote_name,
remote_sockaddr,
netlogon_creds,
false, /* force_reauth */
cli_creds,
&result);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(frame);
return status;
}
goto done;
}
status = rpccli_setup_netlogon_creds(cli,
transport,
remote_name,
remote_sockaddr,
netlogon_creds,
false, /* force_reauth */
cli_creds);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(frame);
return status;
}
status = netlogon_creds_cli_get(netlogon_creds, frame, &creds);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(frame);
return status;
}
netlogon_flags = creds->negotiate_flags;
authenticate_kerberos = creds->authenticate_kerberos;
TALLOC_FREE(creds);
if (authenticate_kerberos) {
status = cli_rpc_pipe_open_with_creds(cli,
table,
transport,
DCERPC_AUTH_TYPE_KRB5,
DCERPC_AUTH_LEVEL_PRIVACY,
"netlogon",
remote_name,
remote_sockaddr,
cli_creds,
&result);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(frame);
return status;
}
} else if (netlogon_flags & NETLOGON_NEG_AUTHENTICATED_RPC) {
status = cli_rpc_pipe_open_schannel_with_creds(cli, table,
transport,
netlogon_creds,
remote_name,
remote_sockaddr,
&result);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(frame);
return status;
}
} else {
status = cli_rpc_pipe_open_noauth(cli, table, &result);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(frame);
return status;
}
}
done:
*presult = result;
if (pcreds != NULL) {
*pcreds = talloc_move(mem_ctx, &netlogon_creds);
}
TALLOC_FREE(frame);
return NT_STATUS_OK;
}
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