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/*
Unix SMB/CIFS implementation.
Samba 4-compatible DCE/RPC API on top of the Samba 3 DCE/RPC client library.
Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008
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/rpc/dcerpc.h"
/**
* Send a struct-based RPC request using the Samba 3 RPC client library.
*/
struct rpc_request *dcerpc_ndr_request_send(struct dcerpc_pipe *p, const struct GUID *object,
const struct ndr_interface_table *table, uint32_t opnum,
TALLOC_CTX *mem_ctx, void *r)
{
const struct ndr_interface_call *call;
struct ndr_push *push;
struct rpc_request *ret = talloc(mem_ctx, struct rpc_request);
enum ndr_err_code ndr_err;
DATA_BLOB blob;
if (ret == NULL)
return NULL;
SMB_ASSERT(p->table->num_calls > opnum);
call = &p->table->calls[opnum];
ret->call = call;
ret->r = r;
push = ndr_push_init_ctx(mem_ctx);
if (!push) {
return NULL;
}
ndr_err = call->ndr_push(push, NDR_IN, r);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
/* FIXME: ndr_map_error2ntstatus(ndr_err); */
return NULL;
}
blob = ndr_push_blob(push);
if (!prs_init_data_blob(&ret->q_ps, &blob, mem_ctx)) {
return NULL;
}
talloc_free(push);
ret->opnum = opnum;
ret->pipe = p;
return ret;
}
/**
* Wait for a DCE/RPC request.
*
* @note at the moment this is still sync, even though the API is async.
*/
NTSTATUS dcerpc_ndr_request_recv(struct rpc_request *req)
{
prs_struct r_ps;
struct ndr_pull *pull;
NTSTATUS status;
DATA_BLOB blob;
enum ndr_err_code ndr_err;
prs_init_empty( &r_ps, req, UNMARSHALL );
status = rpc_api_pipe_req(req->pipe->rpc_cli, req->opnum, &req->q_ps, &r_ps);
prs_mem_free( &req->q_ps );
if (!NT_STATUS_IS_OK(status)) {
prs_mem_free( &r_ps );
return status;
}
if (!prs_data_blob(&r_ps, &blob, req)) {
prs_mem_free( &r_ps );
return NT_STATUS_NO_MEMORY;
}
prs_mem_free( &r_ps );
pull = ndr_pull_init_blob(&blob, req);
if (pull == NULL) {
return NT_STATUS_NO_MEMORY;
}
/* have the ndr parser alloc memory for us */
pull->flags |= LIBNDR_FLAG_REF_ALLOC;
ndr_err = req->call->ndr_pull(pull, NDR_OUT, req->r);
talloc_free(pull);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
return ndr_map_error2ntstatus(ndr_err);
}
return NT_STATUS_OK;
}
/**
* Connect to a DCE/RPC interface.
*
* @note lp_ctx and ev are ignored at the moment but present
* for API compatibility.
*/
_PUBLIC_ NTSTATUS dcerpc_pipe_connect(TALLOC_CTX *parent_ctx, struct dcerpc_pipe **pp,
const char *binding_string, const struct ndr_interface_table *table,
struct cli_credentials *credentials, struct event_context *ev,
struct loadparm_context *lp_ctx)
{
struct dcerpc_pipe *p = talloc(parent_ctx, struct dcerpc_pipe);
struct dcerpc_binding *binding;
NTSTATUS nt_status;
nt_status = dcerpc_parse_binding(p, binding_string, &binding);
if (NT_STATUS_IS_ERR(nt_status)) {
DEBUG(1, ("Unable to parse binding string '%s'", binding_string));
talloc_free(p);
return nt_status;
}
if (binding->transport != NCACN_NP) {
DEBUG(0, ("Only ncacn_np supported"));
talloc_free(p);
return NT_STATUS_NOT_SUPPORTED;
}
/* FIXME: Actually use loadparm_context.. */
/* FIXME: actually use credentials */
nt_status = cli_full_connection(&p->cli, global_myname(), binding->host,
NULL, 0,
"IPC$", "IPC",
get_cmdline_auth_info_username(),
lp_workgroup(),
get_cmdline_auth_info_password(),
get_cmdline_auth_info_use_kerberos() ? CLI_FULL_CONNECTION_USE_KERBEROS : 0,
get_cmdline_auth_info_signing_state(), NULL);
if (NT_STATUS_IS_ERR(nt_status)) {
talloc_free(p);
return nt_status;
}
nt_status = cli_rpc_pipe_open_noauth(p->cli, &table->syntax_id,
&p->rpc_cli);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(p);
return nt_status;
}
p->table = table;
*pp = p;
return nt_status;
}
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