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https://github.com/samba-team/samba.git
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de10c61105
This reverts commit f2df8be16b.
See the discussion in
https://lists.samba.org/archive/samba-technical/2018-December/131731.html
for the reasoning behind this revert.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
/*
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Unix SMB/Netbios implementation.
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Version 1.9.
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VFS module to perform read-only limitation based on a time period
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Copyright (C) Alexander Bokovoy 2003
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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This work was sponsored by Optifacio Software Services, Inc.
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*/
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#include "includes.h"
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#include "smbd/smbd.h"
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#include "getdate.h"
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/*
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This module performs a read-only limitation for specified share
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(or all of them if it is loaded in a [global] section) based on period
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definition in smb.conf. You can stack this module multiple times under
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different names to get multiple limit intervals.
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The module uses get_date() function from coreutils' date utility to parse
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specified dates according to date(1) rules. Look into info page for date(1)
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to understand the syntax.
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The module accepts one parameter:
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readonly: period = "begin date","end date"
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where "begin date" and "end date" are mandatory and should comply with date(1)
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syntax for date strings.
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Example:
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readonly: period = "today 14:00","today 15:00"
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Default:
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readonly: period = "today 0:0:0","tomorrow 0:0:0"
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The default covers whole day thus making the share readonly
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*/
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#define MODULE_NAME "readonly"
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static int readonly_connect(vfs_handle_struct *handle,
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const char *service,
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const char *user)
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{
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const char *period_def[] = {"today 0:0:0", "tomorrow 0:0:0"};
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const char **period = lp_parm_string_list(SNUM(handle->conn),
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(handle->param ? handle->param : MODULE_NAME),
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"period", period_def);
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int ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
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if (ret < 0) {
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return ret;
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}
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if (period && period[0] && period[1]) {
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int i;
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time_t current_time = time(NULL);
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time_t begin_period = get_date(period[0], ¤t_time);
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time_t end_period = get_date(period[1], ¤t_time);
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if ((current_time >= begin_period) && (current_time <= end_period)) {
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connection_struct *conn = handle->conn;
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handle->conn->read_only = True;
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/* Wipe out the VUID cache. */
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for (i=0; i< VUID_CACHE_SIZE; i++) {
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struct vuid_cache_entry *ent = &conn->vuid_cache->array[i];
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ent->vuid = UID_FIELD_INVALID;
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TALLOC_FREE(ent->session_info);
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ent->read_only = false;
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ent->share_access = 0;
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}
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conn->vuid_cache->next_entry = 0;
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}
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return 0;
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} else {
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return 0;
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}
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}
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static struct vfs_fn_pointers vfs_readonly_fns = {
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.connect_fn = readonly_connect
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};
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NTSTATUS vfs_readonly_init(TALLOC_CTX *);
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NTSTATUS vfs_readonly_init(TALLOC_CTX *ctx)
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{
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return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, MODULE_NAME,
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&vfs_readonly_fns);
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}
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