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/*
Unix SMB/CIFS implementation.
remote dcerpc operations
Copyright (C) Stefan (metze) Metzmacher 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"
struct dcesrv_remote_private {
struct dcerpc_pipe *c_pipe;
void *private;
};
static NTSTATUS remote_op_bind(struct dcesrv_call_state *dce_call, const struct dcesrv_interface *iface)
{
NTSTATUS status;
struct dcesrv_remote_private *private;
const char *binding = lp_parm_string(-1, "dcerpc_remote", "binding");
if (!binding) {
printf("You must specify a ncacn binding string\n");
return NT_STATUS_INVALID_PARAMETER;
}
private = talloc_p(dce_call->conn->mem_ctx, struct dcesrv_remote_private);
if (!private) {
return NT_STATUS_NO_MEMORY;
}
status = dcerpc_pipe_connect(&(private->c_pipe), binding, iface->ndr->uuid, iface->ndr->if_version,
lp_workgroup(),
lp_parm_string(-1, "dcerpc_remote", "username"),
lp_parm_string(-1, "dcerpc_remote", "password"));
dce_call->conn->private = private;
return NT_STATUS_OK;
}
static void remote_op_unbind(struct dcesrv_connection *dce_conn, const struct dcesrv_interface *iface)
{
struct dcesrv_remote_private *private = dce_conn->private;
dcerpc_pipe_close(private->c_pipe);
return;
}
static NTSTATUS remote_op_dispatch(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx, void *r)
{
struct dcesrv_remote_private *private = dce_call->conn->private;
NTSTATUS status;
uint16 opnum = dce_call->pkt.u.request.opnum;
const char *name = dce_call->conn->iface->ndr->calls[opnum].name;
ndr_push_flags_fn_t ndr_push_fn = dce_call->conn->iface->ndr->calls[opnum].ndr_push;
ndr_pull_flags_fn_t ndr_pull_fn = dce_call->conn->iface->ndr->calls[opnum].ndr_pull;
ndr_print_function_t ndr_print_fn = dce_call->conn->iface->ndr->calls[opnum].ndr_print;
size_t struct_size = dce_call->conn->iface->ndr->calls[opnum].struct_size;
if (private->c_pipe->flags & DCERPC_DEBUG_PRINT_IN) {
ndr_print_function_debug(ndr_print_fn, name, NDR_IN | NDR_SET_VALUES, r);
}
status = dcerpc_ndr_request(private->c_pipe, opnum, mem_ctx,
(ndr_push_flags_fn_t) ndr_push_fn,
(ndr_pull_flags_fn_t) ndr_pull_fn,
r, struct_size);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("dcesrv_remote: call[%s] failed with: %s!\n",name, nt_errstr(status)));
return status;
}
if (NT_STATUS_IS_OK(status) && (private->c_pipe->flags & DCERPC_DEBUG_PRINT_OUT)) {
ndr_print_function_debug(ndr_print_fn, name, NDR_OUT, r);
}
return status;
}
static NTSTATUS remote_register_one_iface(struct dcesrv_context *dce_ctx, const struct dcesrv_interface *iface)
{
int i;
for (i=0;i<iface->ndr->endpoints->count;i++) {
NTSTATUS ret;
const char *name = iface->ndr->endpoints->names[i];
ret = dcesrv_interface_register(dce_ctx, name, iface, NULL);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(1,("remote_op_init_server: failed to register endpoint '%s'\n",name));
return ret;
}
}
return NT_STATUS_OK;
}
static NTSTATUS remote_op_init_server(struct dcesrv_context *dce_ctx, const struct dcesrv_endpoint_server *ep_server)
{
int i;
char **ifaces = str_list_make(lp_parm_string(-1,"dcerpc_remote","interfaces"),NULL);
if (!ifaces) {
DEBUG(3,("remote_op_init_server: no interfaces configured\n"));
return NT_STATUS_OK;
}
for (i=0;ifaces[i];i++) {
NTSTATUS ret;
struct dcesrv_interface iface;
if (!ep_server->interface_by_name(&iface, ifaces[i])) {
DEBUG(0,("remote_op_init_server: failed to find interface = '%s'\n", ifaces[i]));
str_list_free(&ifaces);
return NT_STATUS_UNSUCCESSFUL;
}
ret = remote_register_one_iface(dce_ctx, &iface);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(0,("remote_op_init_server: failed to register interface = '%s'\n", ifaces[i]));
str_list_free(&ifaces);
return ret;
}
}
str_list_free(&ifaces);
return NT_STATUS_OK;
}
static BOOL remote_fill_interface(struct dcesrv_interface *iface, const struct dcerpc_interface_table *if_tabl)
{
iface->ndr = if_tabl;
iface->bind = remote_op_bind;
iface->unbind = remote_op_unbind;
iface->dispatch = remote_op_dispatch;
return True;
}
static BOOL remote_op_interface_by_uuid(struct dcesrv_interface *iface, const char *uuid, uint32 if_version)
{
int i;
for (i=0;dcerpc_pipes[i];i++) {
if (dcerpc_pipes[i]->if_version == if_version &&
strcmp(dcerpc_pipes[i]->uuid, uuid)==0) {
return remote_fill_interface(iface, dcerpc_pipes[i]);
}
}
return False;
}
static BOOL remote_op_interface_by_name(struct dcesrv_interface *iface, const char *name)
{
int i;
for (i=0;dcerpc_pipes[i];i++) {
if (strcmp(dcerpc_pipes[i]->name, name)==0) {
return remote_fill_interface(iface, dcerpc_pipes[i]);
}
}
return False;
}
NTSTATUS dcerpc_remote_init(void)
{
NTSTATUS ret;
struct dcesrv_endpoint_server ep_server;
ZERO_STRUCT(ep_server);
/* fill in our name */
ep_server.name = "remote";
/* fill in all the operations */
ep_server.init_server = remote_op_init_server;
ep_server.interface_by_uuid = remote_op_interface_by_uuid;
ep_server.interface_by_name = remote_op_interface_by_name;
/* register ourselves with the DCERPC subsystem. */
ret = register_backend("dcerpc", &ep_server);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(0,("Failed to register 'remote' endpoint server!\n"));
return ret;
}
return ret;
}
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