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 (in_file_id_persistent != 0) {
59 return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
62 subreq = smbd_smb2_flush_send(req,
63 req->conn->smb2.event_ctx,
67 return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
69 tevent_req_set_callback(subreq, smbd_smb2_request_flush_done, req);
73 static void smbd_smb2_request_flush_done(struct tevent_req *subreq)
75 struct smbd_smb2_request *req = tevent_req_callback_data(subreq,
76 struct smbd_smb2_request);
79 NTSTATUS error; /* transport error */
81 status = smbd_smb2_flush_recv(subreq);
83 if (!NT_STATUS_IS_OK(status)) {
84 error = smbd_smb2_request_error(req, status);
85 if (!NT_STATUS_IS_OK(error)) {
86 smbd_server_connection_terminate(req->conn,
93 outbody = data_blob_talloc(req->out.vector, NULL, 0x10);
94 if (outbody.data == NULL) {
95 error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
96 if (!NT_STATUS_IS_OK(error)) {
97 smbd_server_connection_terminate(req->conn,
104 SSVAL(outbody.data, 0x00, 0x04); /* struct size */
105 SSVAL(outbody.data, 0x02, 0); /* reserved */
107 error = smbd_smb2_request_done(req, outbody, NULL);
108 if (!NT_STATUS_IS_OK(error)) {
109 smbd_server_connection_terminate(req->conn,
115 struct smbd_smb2_flush_state {
116 struct smbd_smb2_request *smb2req;
119 static struct tevent_req *smbd_smb2_flush_send(TALLOC_CTX *mem_ctx,
120 struct tevent_context *ev,
121 struct smbd_smb2_request *smb2req,
122 uint64_t in_file_id_volatile)
124 struct tevent_req *req;
125 struct smbd_smb2_flush_state *state;
127 struct smb_request *smbreq;
130 req = tevent_req_create(mem_ctx, &state,
131 struct smbd_smb2_flush_state);
135 state->smb2req = smb2req;
137 DEBUG(10,("smbd_smb2_flush: file_id[0x%016llX]\n",
138 (unsigned long long)in_file_id_volatile));
140 smbreq = smbd_smb2_fake_smb_request(smb2req);
141 if (tevent_req_nomem(smbreq, req)) {
142 return tevent_req_post(req, ev);
145 if (IS_IPC(smbreq->conn)) {
146 tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
147 return tevent_req_post(req, ev);
150 fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
152 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
153 return tevent_req_post(req, ev);
155 if (smbreq->conn != fsp->conn) {
156 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
157 return tevent_req_post(req, ev);
159 if (smb2req->session->vuid != fsp->vuid) {
160 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
161 return tevent_req_post(req, ev);
164 if (!CHECK_WRITE(fsp)) {
165 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
166 return tevent_req_post(req, ev);
169 status = sync_file(smbreq->conn, fsp, true);
170 if (!NT_STATUS_IS_OK(status)) {
171 DEBUG(5,("smbd_smb2_flush: sync_file for %s returned %s\n",
172 fsp->fsp_name, nt_errstr(status)));
173 tevent_req_nterror(req, status);
174 return tevent_req_post(req, ev);
177 tevent_req_done(req);
178 return tevent_req_post(req, ev);
181 static NTSTATUS smbd_smb2_flush_recv(struct tevent_req *req)
185 if (tevent_req_is_nterror(req, &status)) {
186 tevent_req_received(req);
190 tevent_req_received(req);