Pierre Pronchery
0b475ec7b3
execvp() is (usually) equivalent to execvpe(), without enforcing any change to the environment. However, unlike execvp(), execvpe() is not standardized by POSIX, and may therefore not be available nor detected when configuring the project (like on NetBSD). No place could be found in fwknop to be using execvpe() and changing the environment. Therefore it seems only logical (and safer) to use execvp() instead. This also updates the tests to reflect this change.
77 lines
3.8 KiB
C
77 lines
3.8 KiB
C
/**
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* \file server/fw_util_iptables.h
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*
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* \brief Header file for fw_util_iptables.c.
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*/
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/* Fwknop is developed primarily by the people listed in the file 'AUTHORS'.
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* Copyright (C) 2009-2015 fwknop developers and contributors. For a full
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* list of contributors, see the file 'CREDITS'.
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*
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* License (GNU General 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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#if HAVE_EXECVP
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#define SH_REDIR "" /* the shell is not used when execvp() is available */
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#else
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#define SH_REDIR " 2>&1"
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#endif
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/* iptables command args
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*/
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#define IPT_CHK_RULE_ARGS "-C %s %s" /* the other macros add SH_REDIR if necessary */
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#define IPT_RULE_ARGS "-t %s -p %i -s %s -d %s --dport %i -m comment --comment " EXPIRE_COMMENT_PREFIX "%u -j %s" SH_REDIR
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#define IPT_OUT_RULE_ARGS "-t %s -p %i -d %s -s %s --sport %i -m comment --comment " EXPIRE_COMMENT_PREFIX "%u -j %s" SH_REDIR
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#define IPT_FWD_RULE_ARGS "-t %s -p %i -s %s --dport %i -m comment --comment " EXPIRE_COMMENT_PREFIX "%u -j %s" SH_REDIR
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#define IPT_FWD_ALL_RULE_ARGS "-t %s -s %s -m comment --comment " EXPIRE_COMMENT_PREFIX "%u -j %s" SH_REDIR
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#define IPT_DNAT_RULE_ARGS "-t %s -p %i -s %s -d %s --dport %i -m comment --comment " EXPIRE_COMMENT_PREFIX "%u -j %s --to-destination %s:%i" SH_REDIR
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#define IPT_DNAT_ALL_RULE_ARGS "-t %s -s %s -d %s -m comment --comment " EXPIRE_COMMENT_PREFIX "%u -j %s --to-destination %s" SH_REDIR
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#define IPT_SNAT_RULE_ARGS "-t %s -p %i -d %s --dport %i -m comment --comment " EXPIRE_COMMENT_PREFIX "%u -j %s %s" SH_REDIR
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#define IPT_SNAT_ALL_RULE_ARGS "-t %s -s %s -m comment --comment " EXPIRE_COMMENT_PREFIX "%u -j %s %s" SH_REDIR
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#define IPT_TMP_COMMENT_ARGS "-t %s -I %s %i -s " DUMMY_IP " -m comment --comment " TMP_COMMENT " -j %s" SH_REDIR
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#define IPT_TMP_CHK_RULE_ARGS "-t %s -I %s %i -s " DUMMY_IP " -p udp -j %s" SH_REDIR
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#define IPT_TMP_VERIFY_CHK_ARGS "-t %s -C %s -s " DUMMY_IP " -p udp -j %s" SH_REDIR
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#define IPT_DEL_RULE_ARGS "-t %s -D %s %i" SH_REDIR
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#define IPT_NEW_CHAIN_ARGS "-t %s -N %s" SH_REDIR
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#define IPT_FLUSH_CHAIN_ARGS "-t %s -F %s" SH_REDIR
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#define IPT_CHAIN_EXISTS_ARGS "-t %s -L %s -n" SH_REDIR
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#define IPT_DEL_CHAIN_ARGS "-t %s -X %s" SH_REDIR
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#define IPT_CHK_JUMP_RULE_ARGS "-t %s -j %s" SH_REDIR
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#define IPT_ADD_JUMP_RULE_ARGS "-t %s -I %s %i -j %s" SH_REDIR
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#define IPT_DEL_JUMP_RULE_ARGS "-t %s -D %s -j %s" SH_REDIR /* let iptables work out the rule number */
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#define IPT_LIST_RULES_ARGS "-t %s -L %s --line-numbers -n" SH_REDIR
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#define IPT_LIST_ALL_RULES_ARGS "-t %s -v -n -L --line-numbers" SH_REDIR
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#define IPT_ANY_IP "0.0.0.0/0"
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#if USE_LIBNETFILTER_QUEUE
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#define IPT_NFQ_ADD_ARGS "-t %s -A %s -p udp -m udp --dport %s -j NFQUEUE --queue-num %s"
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#define IPT_NFQ_ADD_ARGS_WITH_IF "-t %s -A %s -i %s -p udp -m udp --dport %s -j NFQUEUE --queue-num %s"
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#endif
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int validate_ipt_chain_conf(const char * const chain_str);
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#endif /* FW_UTIL_IPTABLES_H */
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/***EOF***/
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