| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 |
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| 4 | POSIX NTVFS backend - flush
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| 5 |
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| 6 | Copyright (C) Andrew Tridgell 2004
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| 7 |
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| 8 | This program is free software; you can redistribute it and/or modify
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| 9 | it under the terms of the GNU General Public License as published by
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| 10 | the Free Software Foundation; either version 3 of the License, or
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| 11 | (at your option) any later version.
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| 12 |
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| 13 | This program is distributed in the hope that it will be useful,
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | GNU General Public License for more details.
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| 17 |
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| 18 | You should have received a copy of the GNU General Public License
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| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 20 | */
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| 21 |
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| 22 | #include "includes.h"
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| 23 | #include "vfs_posix.h"
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| 24 |
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| 25 | /*
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| 26 | flush a single open file
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| 27 | */
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| 28 | static void pvfs_flush_file(struct pvfs_state *pvfs, struct pvfs_file *f)
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| 29 | {
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| 30 | if (f->handle->fd == -1) {
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| 31 | return;
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| 32 | }
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| 33 | if (pvfs->flags & PVFS_FLAG_STRICT_SYNC) {
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| 34 | fsync(f->handle->fd);
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| 35 | }
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| 36 | }
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| 37 |
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| 38 | /*
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| 39 | flush a fnum
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| 40 | */
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| 41 | NTSTATUS pvfs_flush(struct ntvfs_module_context *ntvfs,
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| 42 | struct ntvfs_request *req,
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| 43 | union smb_flush *io)
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| 44 | {
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| 45 | struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
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| 46 | struct pvfs_state);
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| 47 | struct pvfs_file *f;
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| 48 |
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| 49 | switch (io->generic.level) {
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| 50 | case RAW_FLUSH_FLUSH:
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| 51 | case RAW_FLUSH_SMB2:
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| 52 | /* TODO: take care of io->smb2.in.unknown */
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| 53 | f = pvfs_find_fd(pvfs, req, io->generic.in.file.ntvfs);
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| 54 | if (!f) {
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| 55 | return NT_STATUS_INVALID_HANDLE;
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| 56 | }
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| 57 | pvfs_flush_file(pvfs, f);
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| 58 | io->smb2.out.reserved = 0;
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| 59 | return NT_STATUS_OK;
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| 60 |
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| 61 | case RAW_FLUSH_ALL:
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| 62 | if (!(pvfs->flags & PVFS_FLAG_STRICT_SYNC)) {
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| 63 | return NT_STATUS_OK;
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| 64 | }
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| 65 |
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| 66 | /*
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| 67 | * they are asking to flush all open files
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| 68 | * for the given SMBPID
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| 69 | */
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| 70 | for (f=pvfs->files.list;f;f=f->next) {
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| 71 | if (f->ntvfs->smbpid != req->smbpid) continue;
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| 72 |
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| 73 | pvfs_flush_file(pvfs, f);
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| 74 | }
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| 75 |
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| 76 | return NT_STATUS_OK;
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| 77 | }
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| 78 |
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| 79 | return NT_STATUS_INVALID_LEVEL;
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| 80 | }
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