s4:libcli/util/tstream.c - Need to include "system/network.h"
[Samba/ekacnet.git] / source3 / smbd / smb2_flush.c
blob561e69058225def82b078abbc7c3fa6411bc89ca
1 /*
2 Unix SMB/CIFS implementation.
3 Core SMB2 server
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/>.
21 #include "includes.h"
22 #include "smbd/globals.h"
23 #include "../libcli/smb/smb_common.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)
34 const uint8_t *inhdr;
35 const uint8_t *inbody;
36 int i = req->current_idx;
37 size_t expected_body_size = 0x18;
38 size_t body_size;
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) {
59 /* skip check */
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->sconn->smb2.event_ctx,
66 req,
67 in_file_id_volatile);
68 if (subreq == NULL) {
69 return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
71 tevent_req_set_callback(subreq, smbd_smb2_request_flush_done, req);
73 return smbd_smb2_request_pending_queue(req, subreq);
76 static void smbd_smb2_request_flush_done(struct tevent_req *subreq)
78 struct smbd_smb2_request *req = tevent_req_callback_data(subreq,
79 struct smbd_smb2_request);
80 DATA_BLOB outbody;
81 NTSTATUS status;
82 NTSTATUS error; /* transport error */
84 status = smbd_smb2_flush_recv(subreq);
85 TALLOC_FREE(subreq);
86 if (!NT_STATUS_IS_OK(status)) {
87 error = smbd_smb2_request_error(req, status);
88 if (!NT_STATUS_IS_OK(error)) {
89 smbd_server_connection_terminate(req->sconn,
90 nt_errstr(error));
91 return;
93 return;
96 outbody = data_blob_talloc(req->out.vector, NULL, 0x10);
97 if (outbody.data == NULL) {
98 error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
99 if (!NT_STATUS_IS_OK(error)) {
100 smbd_server_connection_terminate(req->sconn,
101 nt_errstr(error));
102 return;
104 return;
107 SSVAL(outbody.data, 0x00, 0x04); /* struct size */
108 SSVAL(outbody.data, 0x02, 0); /* reserved */
110 error = smbd_smb2_request_done(req, outbody, NULL);
111 if (!NT_STATUS_IS_OK(error)) {
112 smbd_server_connection_terminate(req->sconn,
113 nt_errstr(error));
114 return;
118 struct smbd_smb2_flush_state {
119 struct smbd_smb2_request *smb2req;
122 static struct tevent_req *smbd_smb2_flush_send(TALLOC_CTX *mem_ctx,
123 struct tevent_context *ev,
124 struct smbd_smb2_request *smb2req,
125 uint64_t in_file_id_volatile)
127 struct tevent_req *req;
128 struct smbd_smb2_flush_state *state;
129 NTSTATUS status;
130 struct smb_request *smbreq;
131 files_struct *fsp;
133 req = tevent_req_create(mem_ctx, &state,
134 struct smbd_smb2_flush_state);
135 if (req == NULL) {
136 return NULL;
138 state->smb2req = smb2req;
140 DEBUG(10,("smbd_smb2_flush: file_id[0x%016llX]\n",
141 (unsigned long long)in_file_id_volatile));
143 smbreq = smbd_smb2_fake_smb_request(smb2req);
144 if (tevent_req_nomem(smbreq, req)) {
145 return tevent_req_post(req, ev);
148 if (IS_IPC(smbreq->conn)) {
149 tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
150 return tevent_req_post(req, ev);
153 fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
154 if (fsp == NULL) {
155 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
156 return tevent_req_post(req, ev);
158 if (smbreq->conn != fsp->conn) {
159 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
160 return tevent_req_post(req, ev);
162 if (smb2req->session->vuid != fsp->vuid) {
163 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
164 return tevent_req_post(req, ev);
167 if (!CHECK_WRITE(fsp)) {
168 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
169 return tevent_req_post(req, ev);
172 status = sync_file(smbreq->conn, fsp, true);
173 if (!NT_STATUS_IS_OK(status)) {
174 DEBUG(5,("smbd_smb2_flush: sync_file for %s returned %s\n",
175 fsp_str_dbg(fsp), nt_errstr(status)));
176 tevent_req_nterror(req, status);
177 return tevent_req_post(req, ev);
180 tevent_req_done(req);
181 return tevent_req_post(req, ev);
184 static NTSTATUS smbd_smb2_flush_recv(struct tevent_req *req)
186 NTSTATUS status;
188 if (tevent_req_is_nterror(req, &status)) {
189 tevent_req_received(req);
190 return status;
193 tevent_req_received(req);
194 return NT_STATUS_OK;