2 Unix SMB/CIFS implementation.
5 Copyright (C) Stefan Metzmacher 2009
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "smbd/globals.h"
23 #include "../source4/libcli/smb2/smb2_constants.h"
25 static struct tevent_req *smbd_smb2_flush_send(TALLOC_CTX *mem_ctx,
26 struct tevent_context *ev,
27 struct smbd_smb2_request *smb2req,
28 uint64_t in_file_id_volatile);
29 static NTSTATUS smbd_smb2_flush_recv(struct tevent_req *req);
31 static void smbd_smb2_request_flush_done(struct tevent_req *subreq);
32 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req)
35 const uint8_t *inbody;
36 int i = req->current_idx;
37 size_t expected_body_size = 0x18;
39 uint64_t in_file_id_persistent;
40 uint64_t in_file_id_volatile;
41 struct tevent_req *subreq;
43 inhdr = (const uint8_t *)req->in.vector[i+0].iov_base;
44 if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) {
45 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
48 inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
50 body_size = SVAL(inbody, 0x00);
51 if (body_size != expected_body_size) {
52 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
55 in_file_id_persistent = BVAL(inbody, 0x08);
56 in_file_id_volatile = BVAL(inbody, 0x10);
58 if (req->compat_chain_fsp) {
60 } else if (in_file_id_persistent != 0) {
61 return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
64 subreq = smbd_smb2_flush_send(req,
65 req->conn->smb2.event_ctx,
69 return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
71 tevent_req_set_callback(subreq, smbd_smb2_request_flush_done, req);
73 if (tevent_req_is_in_progress(subreq)) {
74 return smbd_smb2_request_pending_queue(req);
80 static void smbd_smb2_request_flush_done(struct tevent_req *subreq)
82 struct smbd_smb2_request *req = tevent_req_callback_data(subreq,
83 struct smbd_smb2_request);
86 NTSTATUS error; /* transport error */
88 status = smbd_smb2_flush_recv(subreq);
90 if (!NT_STATUS_IS_OK(status)) {
91 error = smbd_smb2_request_error(req, status);
92 if (!NT_STATUS_IS_OK(error)) {
93 smbd_server_connection_terminate(req->conn,
100 outbody = data_blob_talloc(req->out.vector, NULL, 0x10);
101 if (outbody.data == NULL) {
102 error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
103 if (!NT_STATUS_IS_OK(error)) {
104 smbd_server_connection_terminate(req->conn,
111 SSVAL(outbody.data, 0x00, 0x04); /* struct size */
112 SSVAL(outbody.data, 0x02, 0); /* reserved */
114 error = smbd_smb2_request_done(req, outbody, NULL);
115 if (!NT_STATUS_IS_OK(error)) {
116 smbd_server_connection_terminate(req->conn,
122 struct smbd_smb2_flush_state {
123 struct smbd_smb2_request *smb2req;
126 static struct tevent_req *smbd_smb2_flush_send(TALLOC_CTX *mem_ctx,
127 struct tevent_context *ev,
128 struct smbd_smb2_request *smb2req,
129 uint64_t in_file_id_volatile)
131 struct tevent_req *req;
132 struct smbd_smb2_flush_state *state;
134 struct smb_request *smbreq;
137 req = tevent_req_create(mem_ctx, &state,
138 struct smbd_smb2_flush_state);
142 state->smb2req = smb2req;
144 DEBUG(10,("smbd_smb2_flush: file_id[0x%016llX]\n",
145 (unsigned long long)in_file_id_volatile));
147 smbreq = smbd_smb2_fake_smb_request(smb2req);
148 if (tevent_req_nomem(smbreq, req)) {
149 return tevent_req_post(req, ev);
152 if (IS_IPC(smbreq->conn)) {
153 tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
154 return tevent_req_post(req, ev);
157 fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
159 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
160 return tevent_req_post(req, ev);
162 if (smbreq->conn != fsp->conn) {
163 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
164 return tevent_req_post(req, ev);
166 if (smb2req->session->vuid != fsp->vuid) {
167 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
168 return tevent_req_post(req, ev);
171 if (!CHECK_WRITE(fsp)) {
172 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
173 return tevent_req_post(req, ev);
176 status = sync_file(smbreq->conn, fsp, true);
177 if (!NT_STATUS_IS_OK(status)) {
178 DEBUG(5,("smbd_smb2_flush: sync_file for %s returned %s\n",
179 fsp->fsp_name, nt_errstr(status)));
180 tevent_req_nterror(req, status);
181 return tevent_req_post(req, ev);
184 tevent_req_done(req);
185 return tevent_req_post(req, ev);
188 static NTSTATUS smbd_smb2_flush_recv(struct tevent_req *req)
192 if (tevent_req_is_nterror(req, &status)) {
193 tevent_req_received(req);
197 tevent_req_received(req);