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https://github.com/samba-team/samba.git
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0970822699
Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
218 lines
6.1 KiB
C
218 lines
6.1 KiB
C
/*
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* Unix SMB/CIFS implementation.
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* RPC Pipe client / server routines
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* Copyright (C) Andrew Tridgell 1992-1998,
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* Largely re-written : 2005
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* Copyright (C) Jeremy Allison 1998 - 2005
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* Copyright (C) Simo Sorce 2010
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* Copyright (C) Andrew Bartlett 2011
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "rpc_client/cli_pipe.h"
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#include "rpc_dce.h"
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#include "../libcli/named_pipe_auth/npa_tstream.h"
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#include "rpc_server/rpc_ncacn_np.h"
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#include "librpc/gen_ndr/netlogon.h"
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#include "librpc/gen_ndr/auth.h"
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#include "../auth/auth_sam_reply.h"
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#include "../auth/auth_util.h"
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#include "auth.h"
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#include "rpc_server/rpc_pipes.h"
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#include "../lib/tsocket/tsocket.h"
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#include "../lib/util/tevent_ntstatus.h"
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#include "rpc_server/rpc_config.h"
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#include "librpc/ndr/ndr_table.h"
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#include "rpc_server/rpc_server.h"
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#include "librpc/rpc/dcerpc_util.h"
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#undef DBGC_CLASS
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#define DBGC_CLASS DBGC_RPC_SRV
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struct np_proxy_state {
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uint16_t file_type;
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uint16_t device_state;
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uint64_t allocation_size;
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struct tstream_context *npipe;
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struct tevent_queue *read_queue;
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struct tevent_queue *write_queue;
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};
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struct npa_state *npa_state_init(TALLOC_CTX *mem_ctx)
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{
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struct npa_state *npa;
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npa = talloc_zero(mem_ctx, struct npa_state);
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if (npa == NULL) {
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return NULL;
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}
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npa->read_queue = tevent_queue_create(npa, "npa_cli_read");
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if (npa->read_queue == NULL) {
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DEBUG(0, ("tevent_queue_create failed\n"));
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goto fail;
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}
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npa->write_queue = tevent_queue_create(npa, "npa_cli_write");
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if (npa->write_queue == NULL) {
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DEBUG(0, ("tevent_queue_create failed\n"));
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goto fail;
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}
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return npa;
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fail:
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talloc_free(npa);
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return NULL;
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}
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/**
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* @brief Create a new DCERPC Binding Handle which uses a local dispatch function.
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*
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* @param[in] mem_ctx The memory context to use.
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*
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* @param[in] ndr_table Normally the ndr_table_<name>.
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*
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* @param[in] remote_address The info about the connected client.
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*
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* @param[in] serversupplied_info The server supplied authentication function.
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*
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* @param[in] msg_ctx The messaging context that can be used by the server
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*
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* @param[out] binding_handle A pointer to store the connected
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* dcerpc_binding_handle
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*
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* @return NT_STATUS_OK on success, a corresponding NT status if an
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* error occurred.
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*
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* @code
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* struct dcerpc_binding_handle *winreg_binding;
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* NTSTATUS status;
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*
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* status = rpcint_binding_handle(tmp_ctx,
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* &ndr_table_winreg,
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* p->remote_address,
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* p->session_info,
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* p->msg_ctx
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* &winreg_binding);
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* @endcode
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*/
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NTSTATUS rpcint_binding_handle(TALLOC_CTX *mem_ctx,
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const struct ndr_interface_table *ndr_table,
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const struct tsocket_address *remote_address,
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const struct tsocket_address *local_address,
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const struct auth_session_info *session_info,
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struct messaging_context *msg_ctx,
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struct dcerpc_binding_handle **binding_handle)
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{
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struct rpc_pipe_client *rpccli = NULL;
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NTSTATUS status;
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status = rpc_pipe_open_local_np(
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mem_ctx,
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ndr_table,
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NULL,
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remote_address,
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NULL,
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local_address,
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session_info,
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&rpccli);
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if (!NT_STATUS_IS_OK(status)) {
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DBG_DEBUG("rpc_pipe_open_local_np failed: %s\n",
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nt_errstr(status));
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goto fail;
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}
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*binding_handle = rpccli->binding_handle;
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return NT_STATUS_OK;
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fail:
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TALLOC_FREE(rpccli);
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return status;
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}
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/**
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* @brief Create a new RPC client context which uses a local dispatch function
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* or a remote transport, depending on rpc_server configuration for the
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* specific service.
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*
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* @param[in] mem_ctx The memory context to use.
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*
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* @param[in] abstract_syntax Normally the syntax_id of the autogenerated
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* ndr_table_<name>.
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*
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* @param[in] serversupplied_info The server supplied authentication function.
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*
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* @param[in] remote_address The client address information.
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*
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* @param[in] msg_ctx The messaging context to use.
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*
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* @param[out] presult A pointer to store the connected rpc client pipe.
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*
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* @return NT_STATUS_OK on success, a corresponding NT status if an
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* error occurred.
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*
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* @code
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* struct rpc_pipe_client *winreg_pipe;
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* NTSTATUS status;
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*
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* status = rpc_pipe_open_interface(tmp_ctx,
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* &ndr_table_winreg.syntax_id,
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* p->session_info,
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* remote_address,
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* &winreg_pipe);
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* @endcode
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*/
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NTSTATUS rpc_pipe_open_interface(TALLOC_CTX *mem_ctx,
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const struct ndr_interface_table *table,
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const struct auth_session_info *session_info,
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const struct tsocket_address *remote_address,
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const struct tsocket_address *local_address,
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struct messaging_context *msg_ctx,
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struct rpc_pipe_client **cli_pipe)
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{
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struct rpc_pipe_client *cli = NULL;
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NTSTATUS status;
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if (cli_pipe != NULL) {
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if (rpccli_is_connected(*cli_pipe)) {
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return NT_STATUS_OK;
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} else {
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TALLOC_FREE(*cli_pipe);
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}
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}
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status = rpc_pipe_open_local_np(
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mem_ctx,
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table,
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NULL,
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remote_address,
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NULL,
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local_address,
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session_info,
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&cli);
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if (!NT_STATUS_IS_OK(status)) {
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DBG_ERR("Could not connect to %s pipe: %s\n",
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table->name,
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nt_errstr(status));
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return status;
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}
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if (NT_STATUS_IS_OK(status) && cli_pipe != NULL) {
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*cli_pipe = cli;
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}
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return status;
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}
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