1 /* 2 * Shared library add-on for iptables to add IDLETIMER support. 3 * 4 * Copyright (C) 2010 Nokia Corporation. All rights reserved. 5 * 6 * Contact: Luciano Coelho <luciano.coelho (at) nokia.com> 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * version 2 as published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 20 * 02110-1301 USA 21 * 22 */ 23 #include <stdio.h> 24 #include <xtables.h> 25 #include <linux/netfilter/xt_IDLETIMER.h> 26 27 enum { 28 O_TIMEOUT = 0, 29 O_LABEL, 30 }; 31 32 #define s struct idletimer_tg_info 33 static const struct xt_option_entry idletimer_tg_opts[] = { 34 {.name = "timeout", .id = O_TIMEOUT, .type = XTTYPE_UINT32, 35 .flags = XTOPT_MAND | XTOPT_PUT, XTOPT_POINTER(s, timeout)}, 36 {.name = "label", .id = O_LABEL, .type = XTTYPE_STRING, 37 .flags = XTOPT_MAND | XTOPT_PUT, XTOPT_POINTER(s, label)}, 38 XTOPT_TABLEEND, 39 }; 40 #undef s 41 42 static void idletimer_tg_help(void) 43 { 44 printf( 45 "IDLETIMER target options:\n" 46 " --timeout time Timeout until the notification is sent (in seconds)\n" 47 " --label string Unique rule identifier\n" 48 "\n"); 49 } 50 51 static void idletimer_tg_print(const void *ip, 52 const struct xt_entry_target *target, 53 int numeric) 54 { 55 struct idletimer_tg_info *info = 56 (struct idletimer_tg_info *) target->data; 57 58 printf(" timeout:%u", info->timeout); 59 printf(" label:%s", info->label); 60 } 61 62 static void idletimer_tg_save(const void *ip, 63 const struct xt_entry_target *target) 64 { 65 struct idletimer_tg_info *info = 66 (struct idletimer_tg_info *) target->data; 67 68 printf(" --timeout %u", info->timeout); 69 printf(" --label %s", info->label); 70 } 71 72 static struct xtables_target idletimer_tg_reg = { 73 .family = NFPROTO_UNSPEC, 74 .name = "IDLETIMER", 75 .version = XTABLES_VERSION, 76 .revision = 0, 77 .size = XT_ALIGN(sizeof(struct idletimer_tg_info)), 78 .userspacesize = offsetof(struct idletimer_tg_info, timer), 79 .help = idletimer_tg_help, 80 .x6_parse = xtables_option_parse, 81 .print = idletimer_tg_print, 82 .save = idletimer_tg_save, 83 .x6_options = idletimer_tg_opts, 84 }; 85 86 void _init(void) 87 { 88 xtables_register_target(&idletimer_tg_reg); 89 } 90