/* Unix SMB/Netbios implementation. Version 1.9. VFS module to perform read-only limitation based on a time period Copyright (C) Alexander Bokovoy 2003 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/>. This work was sponsored by Optifacio Software Services, Inc. */ #include "includes.h" #include "getdate.h" /* This module performs a read-only limitation for specified share (or all of them if it is loaded in a [global] section) based on period definition in smb.conf. You can stack this module multiple times under different names to get multiple limit intervals. The module uses get_date() function from coreutils' date utility to parse specified dates according to date(1) rules. Look into info page for date(1) to understand the syntax. The module accepts one parameter: readonly: period = "begin date","end date" where "begin date" and "end date" are mandatory and should comply with date(1) syntax for date strings. Example: readonly: period = "today 14:00","today 15:00" Default: readonly: period = "today 0:0:0","tomorrow 0:0:0" The default covers whole day thus making the share readonly */ #define MODULE_NAME "readonly" static int readonly_connect(vfs_handle_struct *handle, const char *service, const char *user) { const char *period_def[] = {"today 0:0:0", "tomorrow 0:0:0"}; const char **period = lp_parm_string_list(SNUM(handle->conn), (handle->param ? handle->param : MODULE_NAME), "period", period_def); if (period && period[0] && period[1]) { time_t current_time = time(NULL); time_t begin_period = get_date(period[0], ¤t_time); time_t end_period = get_date(period[1], ¤t_time); if ((current_time >= begin_period) && (current_time <= end_period)) { handle->conn->read_only = True; } return SMB_VFS_NEXT_CONNECT(handle, service, user); } else { return 1; } } /* VFS operations structure */ static vfs_op_tuple readonly_op_tuples[] = { /* Disk operations */ {SMB_VFS_OP(readonly_connect), SMB_VFS_OP_CONNECT, SMB_VFS_LAYER_TRANSPARENT}, {SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP} }; NTSTATUS vfs_readonly_init(void); NTSTATUS vfs_readonly_init(void) { return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, MODULE_NAME, readonly_op_tuples); }