bc58b3a15f
Added chain_exists() check to SPA rule creation so that if any of the fwknop chains are deleted out from under fwknopd they will be recreated on the fly. This mitigates scenarios where fwknopd might be started before a system level firewall policy is applied due to init script ordering, or if an iptables policy is re-applied without restarting fwknopd.
56 lines
2.5 KiB
C
56 lines
2.5 KiB
C
/*
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*****************************************************************************
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*
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* File: fw_util_iptables.h
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*
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* Author: Damien Stuart (dstuart@dstuart.org)
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*
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* Purpose: Header file for fw_util_iptables.c.
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*
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* Copyright 2010 Damien Stuart (dstuart@dstuart.org)
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*
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* License (GNU Public License):
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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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*
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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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*
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*****************************************************************************
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*/
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#ifndef FW_UTIL_IPTABLES_H
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#define FW_UTIL_IPTABLES_H
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#define SNAT_TARGET_BUFSIZE 64
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/* iptables command args
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*/
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#define IPT_ADD_RULE_ARGS "-t %s -A %s -p %i -s %s --dport %i -m comment --comment " EXPIRE_COMMENT_PREFIX "%u -j %s 2>&1"
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#define IPT_ADD_OUT_RULE_ARGS "-t %s -A %s -p %i -d %s --sport %i -m comment --comment " EXPIRE_COMMENT_PREFIX "%u -j %s 2>&1"
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#define IPT_ADD_FWD_RULE_ARGS "-t %s -A %s -p %i -s %s -d %s --dport %i -m comment --comment " EXPIRE_COMMENT_PREFIX "%u -j %s 2>&1"
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#define IPT_ADD_DNAT_RULE_ARGS "-t %s -A %s -p %i -s %s --dport %i -m comment --comment " EXPIRE_COMMENT_PREFIX "%u -j %s --to-destination %s:%i 2>&1"
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#define IPT_ADD_SNAT_RULE_ARGS "-t %s -A %s -p %i -d %s --dport %i -m comment --comment " EXPIRE_COMMENT_PREFIX "%u -j %s %s 2>&1"
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#define IPT_TMP_COMMENT_ARGS "-t %s -I %s %i -s 127.0.0.2 -m comment --comment " TMP_COMMENT " -j %s 2>&1"
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#define IPT_DEL_RULE_ARGS "-t %s -D %s %i 2>&1"
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#define IPT_NEW_CHAIN_ARGS "-t %s -N %s 2>&1"
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#define IPT_FLUSH_CHAIN_ARGS "-t %s -F %s 2>&1"
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#define IPT_CHAIN_EXISTS_ARGS "-t %s -L %s -n 2>&1"
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#define IPT_DEL_CHAIN_ARGS "-t %s -X %s 2>&1"
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#define IPT_ADD_JUMP_RULE_ARGS "-t %s -I %s %i -j %s 2>&1"
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#define IPT_LIST_RULES_ARGS "-t %s -L %s --line-numbers -n 2>&1"
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#define IPT_LIST_ALL_RULES_ARGS "-t %s -v -n -L --line-numbers 2>&1"
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#endif /* FW_UTIL_IPTABLES_H */
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/***EOF***/
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