diff options
Diffstat (limited to 'source3/smbd/smb2_flush.c')
| -rw-r--r-- | source3/smbd/smb2_flush.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/source3/smbd/smb2_flush.c b/source3/smbd/smb2_flush.c new file mode 100644 index 0000000000..5164d1b4a4 --- /dev/null +++ b/source3/smbd/smb2_flush.c @@ -0,0 +1,120 @@ +/* + Unix SMB/CIFS implementation. + Core SMB2 server + + Copyright (C) Stefan Metzmacher 2009 + + 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 "smbd/globals.h" +#include "../source4/libcli/smb2/smb2_constants.h" + +static NTSTATUS smbd_smb2_flush(struct smbd_smb2_request *req, + uint64_t in_file_id_volatile); + +NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req) +{ + const uint8_t *inhdr; + const uint8_t *inbody; + int i = req->current_idx; + DATA_BLOB outbody; + size_t expected_body_size = 0x18; + size_t body_size; + uint64_t in_file_id_persistent; + uint64_t in_file_id_volatile; + NTSTATUS status; + + inhdr = (const uint8_t *)req->in.vector[i+0].iov_base; + if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) { + return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER); + } + + inbody = (const uint8_t *)req->in.vector[i+1].iov_base; + + body_size = SVAL(inbody, 0x00); + if (body_size != expected_body_size) { + return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER); + } + + in_file_id_persistent = BVAL(inbody, 0x08); + in_file_id_volatile = BVAL(inbody, 0x10); + + if (in_file_id_persistent != 0) { + return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED); + } + + status = smbd_smb2_flush(req, + in_file_id_volatile); + if (!NT_STATUS_IS_OK(status)) { + return smbd_smb2_request_error(req, status); + } + + outbody = data_blob_talloc(req->out.vector, NULL, 0x10); + if (outbody.data == NULL) { + return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY); + } + + SSVAL(outbody.data, 0x00, 0x04); /* struct size */ + SSVAL(outbody.data, 0x02, 0); /* reserved */ + + return smbd_smb2_request_done(req, outbody, NULL); +} + +static NTSTATUS smbd_smb2_flush(struct smbd_smb2_request *req, + uint64_t in_file_id_volatile) +{ + NTSTATUS status; + struct smb_request *smbreq; + connection_struct *conn = req->tcon->compat_conn; + files_struct *fsp; + + DEBUG(10,("smbd_smb2_flush: file_id[0x%016llX]\n", + (unsigned long long)in_file_id_volatile)); + + smbreq = smbd_smb2_fake_smb_request(req); + if (smbreq == NULL) { + return NT_STATUS_NO_MEMORY; + } + + /* If it's an IPC, pass off the pipe handler. */ + if (IS_IPC(conn)) { + return NT_STATUS_NOT_IMPLEMENTED; + } + + fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile); + if (fsp == NULL) { + return NT_STATUS_FILE_CLOSED; + } + if (conn != fsp->conn) { + return NT_STATUS_FILE_CLOSED; + } + if (req->session->vuid != fsp->vuid) { + return NT_STATUS_FILE_CLOSED; + } + + if (!CHECK_WRITE(fsp)) { + return NT_STATUS_ACCESS_DENIED; + } + + status = sync_file(conn, fsp, true); + if (!NT_STATUS_IS_OK(status)) { + DEBUG(5,("smbd_smb2_flush: sync_file for %s returned %s\n", + fsp->fsp_name, nt_errstr(status))); + return status; + } + + return NT_STATUS_OK; +} |