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548f7d3f36
Based on the initial patch from Volker Lendecke <vl@samba.org>. metze
135 lines
3.4 KiB
C
135 lines
3.4 KiB
C
/*
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Unix SMB/CIFS implementation.
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smb2 lib
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Copyright (C) Volker Lendecke 2011
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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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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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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 "client.h"
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#include "async_smb.h"
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#include "smb2cli_base.h"
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#include "smb2cli.h"
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#include "libsmb/proto.h"
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#include "lib/util/tevent_ntstatus.h"
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struct smb2cli_write_state {
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uint8_t fixed[48];
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};
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static void smb2cli_write_done(struct tevent_req *subreq);
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struct tevent_req *smb2cli_write_send(TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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struct cli_state *cli,
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uint32_t length,
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uint64_t offset,
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uint64_t fid_persistent,
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uint64_t fid_volatile,
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uint32_t remaining_bytes,
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uint32_t flags,
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const uint8_t *data)
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{
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struct tevent_req *req, *subreq;
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struct smb2cli_write_state *state;
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uint8_t *fixed;
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req = tevent_req_create(mem_ctx, &state,
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struct smb2cli_write_state);
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if (req == NULL) {
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return NULL;
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}
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fixed = state->fixed;
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SSVAL(fixed, 0, 49);
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SSVAL(fixed, 2, SMB2_HDR_BODY + 48);
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SIVAL(fixed, 4, length);
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SBVAL(fixed, 8, offset);
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SBVAL(fixed, 16, fid_persistent);
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SBVAL(fixed, 24, fid_volatile);
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SIVAL(fixed, 36, remaining_bytes);
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SIVAL(fixed, 44, flags);
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subreq = smb2cli_req_send(state, ev, cli, SMB2_OP_WRITE, 0,
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state->fixed, sizeof(state->fixed),
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data, length);
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if (tevent_req_nomem(subreq, req)) {
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return tevent_req_post(req, ev);
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}
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tevent_req_set_callback(subreq, smb2cli_write_done, req);
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return req;
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}
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static void smb2cli_write_done(struct tevent_req *subreq)
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{
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struct tevent_req *req =
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tevent_req_callback_data(subreq,
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struct tevent_req);
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NTSTATUS status;
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struct iovec *iov;
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status = smb2cli_req_recv(subreq, talloc_tos(), &iov, 17);
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if (tevent_req_nterror(req, status)) {
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return;
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}
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tevent_req_done(req);
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}
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NTSTATUS smb2cli_write_recv(struct tevent_req *req)
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{
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return tevent_req_simple_recv_ntstatus(req);
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}
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NTSTATUS smb2cli_write(struct cli_state *cli,
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uint32_t length,
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uint64_t offset,
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uint64_t fid_persistent,
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uint64_t fid_volatile,
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uint32_t remaining_bytes,
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uint32_t flags,
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const uint8_t *data)
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{
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TALLOC_CTX *frame = talloc_stackframe();
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struct event_context *ev;
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struct tevent_req *req;
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NTSTATUS status = NT_STATUS_NO_MEMORY;
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if (cli_has_async_calls(cli)) {
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/*
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* Can't use sync call while an async call is in flight
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*/
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status = NT_STATUS_INVALID_PARAMETER;
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goto fail;
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}
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ev = event_context_init(frame);
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if (ev == NULL) {
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goto fail;
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}
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req = smb2cli_write_send(frame, ev, cli, length, offset,
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fid_persistent, fid_volatile,
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remaining_bytes, flags, data);
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if (req == NULL) {
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goto fail;
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}
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if (!tevent_req_poll_ntstatus(req, ev, &status)) {
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goto fail;
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}
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status = smb2cli_write_recv(req);
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fail:
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TALLOC_FREE(frame);
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return status;
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}
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