2 Unix SMB/CIFS implementation.
4 smbd-specific dcerpc server code
6 Copyright (C) Andrew Tridgell 2003-2005
7 Copyright (C) Stefan (metze) Metzmacher 2004-2005
8 Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2004,2007
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include "librpc/gen_ndr/ndr_dcerpc.h"
26 #include "auth/auth.h"
27 #include "../lib/util/dlinklist.h"
28 #include "rpc_server/dcerpc_server.h"
29 #include "rpc_server/dcerpc_server_proto.h"
30 #include "system/filesys.h"
31 #include "lib/messaging/irpc.h"
32 #include "system/network.h"
33 #include "lib/socket/netif.h"
34 #include "param/param.h"
35 #include "../lib/tsocket/tsocket.h"
36 #include "librpc/rpc/dcerpc_proto.h"
37 #include "../lib/util/tevent_ntstatus.h"
38 #include "libcli/raw/smb.h"
39 #include "../libcli/named_pipe_auth/npa_tstream.h"
40 #include "smbd/process_model.h"
43 * Need to run the majority of the RPC endpoints in a single process to allow
44 * for shared handles, and the sharing of ldb contexts.
46 * However other endpoints are capable of being run in multiple processes
49 * To support this the process model is manipulated to force those end points
50 * not supporting multiple processes into the single process model. The code
51 * responsible for this is in dcesrv_init_endpoints
54 NTSTATUS server_service_rpc_init(TALLOC_CTX *);
57 * Initialise the rpc endpoints.
59 static NTSTATUS dcesrv_init_endpoints(struct task_server *task,
60 struct dcesrv_context *dce_ctx,
61 bool use_single_process)
64 struct dcesrv_endpoint *e;
65 const struct model_ops *model_ops = NULL;
68 * For those RPC services that run with shared context we need to
69 * ensure that they don't fork a new process on accept (standard_model).
70 * And as there is only one process handling these requests we need
71 * to handle accept errors in a similar manner to the single process
74 * To do this we override the process model operations with the single
75 * process operations. This is not the most elegant solution, but it is
76 * the least ugly, and is confined to the next block of code.
78 if (use_single_process == true) {
79 model_ops = process_model_startup("single");
80 if (model_ops == NULL) {
81 DBG_ERR("Unable to load single process model");
82 return NT_STATUS_INTERNAL_ERROR;
85 model_ops = task->model_ops;
88 for (e = dce_ctx->endpoint_list; e; e = e->next) {
90 enum dcerpc_transport_t transport =
91 dcerpc_binding_get_transport(e->ep_description);
93 if (transport == NCACN_HTTP) {
95 * We don't support ncacn_http yet
99 if (e->use_single_process == use_single_process) {
101 status = dcesrv_add_ep(dce_ctx,
106 task->process_context);
107 if (!NT_STATUS_IS_OK(status)) {
115 * Initialise the RPC service.
116 * And those end points that can be serviced by multiple processes.
117 * The endpoints that need to be run in a single process are setup in the
120 static NTSTATUS dcesrv_task_init(struct task_server *task)
122 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
123 struct dcesrv_context *dce_ctx;
125 dcerpc_server_init(task->lp_ctx);
127 task_server_set_title(task, "task[dcesrv]");
129 status = dcesrv_init_context(task->event_ctx,
131 lpcfg_dcerpc_endpoint_servers(task->lp_ctx),
133 if (!NT_STATUS_IS_OK(status)) {
137 /* Make sure the directory for NCALRPC exists */
138 if (!directory_exist(lpcfg_ncalrpc_dir(task->lp_ctx))) {
139 mkdir(lpcfg_ncalrpc_dir(task->lp_ctx), 0755);
141 status = dcesrv_init_endpoints(task, dce_ctx, false);
142 if (!NT_STATUS_IS_OK(status)) {
146 task->private_data = dce_ctx;
151 * Initialise the endpoints that need to run in a single process fork.
152 * The endpoint registration is only done for the first process instance.
155 static void dcesrv_post_fork(struct task_server *task,
156 struct process_details *pd)
159 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
160 struct dcesrv_context *dce_ctx;
162 if (task->private_data == NULL) {
163 task_server_terminate(task, "dcerpc: No dcesrv_context", true);
167 talloc_get_type_abort(task->private_data, struct dcesrv_context);
170 * Ensure the single process endpoints are only available to the
173 if (pd->instances == 0) {
174 status = dcesrv_init_endpoints(task, dce_ctx, true);
175 if (!NT_STATUS_IS_OK(status)) {
176 task_server_terminate(
178 "dcerpc: Failed to initialise end points",
184 irpc_add_name(task->msg_ctx, "rpc_server");
187 NTSTATUS server_service_rpc_init(TALLOC_CTX *ctx)
189 static const struct service_details details = {
190 .inhibit_fork_on_accept = false,
191 .inhibit_pre_fork = false,
192 .task_init = dcesrv_task_init,
193 .post_fork = dcesrv_post_fork};
194 return register_server_service(ctx, "rpc", &details);