mirror of
https://github.com/vincentmli/bpfire.git
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80fbd89949
If an IPsec VPN connections is not established, there are rare cases when packets are supposed to be sent through that said tunnel and incorrectly handled. Those packets are sent to the default gateway an entry for this connection is created in the connection tracking table (usually only happens to UDP). All following packets are sent the same route even after the tunnel has been brought up. That leads to SIP phones not being able to register among other things. This patch adds firewall rules that these packets are rejected. That will sent a notification to the client that the tunnel is not up and avoid the connection to be added to the connection tracking table. Apart from a small performance penalty there should be no other side-effects. Fixes: #10908 Signed-off-by: Michael Tremer <michael.tremer@ipfire.org> Cc: tomvend@rymes.com Cc: daniel.weismueller@ipfire.org Cc: morlix@morlix.de Reviewed-by: Timo Eissler <timo.eissler@ipfire.org>
151 lines
5.3 KiB
Plaintext
151 lines
5.3 KiB
Plaintext
###############################################################################
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# #
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# IPFire.org - A linux based firewall #
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# Copyright (C) 2007 Michael Tremer & Christian Schmidt #
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# #
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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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# #
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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, see <http://www.gnu.org/licenses/>. #
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# #
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###############################################################################
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###############################################################################
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# Definitions
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###############################################################################
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include Config
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VER = ipfire
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THISAPP = stage2
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TARGET = $(DIR_INFO)/$(THISAPP)
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###############################################################################
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# Top-level Rules
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###############################################################################
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install : $(TARGET)
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check :
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download :
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md5 :
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###############################################################################
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# Installation Details
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###############################################################################
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$(TARGET) :
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@$(PREBUILD)
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# Create directories
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-mkdir -pv /{bin,boot,etc/opt,etc/modprobe.d,home,lib/firmware/brcm,mnt,opt,run}
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-mkdir -pv /{media/{floppy,cdrom,usbkey},sbin,srv,var}
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-install -dv -m 0750 /root
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-install -dv -m 1777 /tmp /var/tmp
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-mkdir -pv /usr/{,local/}{bin,include,lib{,/sse2},sbin,src}
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-mkdir -pv /usr/{,local/}share/{doc,info,locale,man}
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-mkdir -v /usr/{,local/}share/{misc,terminfo,xt_geoip,zoneinfo}
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-mkdir -pv /usr/{,local/}share/man/man{1..8}
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#-for dir in /usr /usr/local; do \
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# ln -sv share/{man,doc,info} $$dir; \
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#done
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# Symlink /var/run -> /run.
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ln -svf ../run /var/run
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ifeq "$(MACHINE)" "x86_64"
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ln -svf lib /lib64
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ln -svf lib /usr/lib64
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endif
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# Symlinks
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# for this reason, stage2 rebuild will broke the iso:perl, grubbatch
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-ln -sv /tools/bin/{bash,cat,echo,pwd,stty} /bin
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-ln -sv /tools/bin/perl /usr/bin
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-ln -sv /tools/lib/libgcc_s.so{,.1} /usr/lib
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-ln -sv /tools/lib/libstdc++.so{,.6} /usr/lib
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sed 's/tools/usr/' /tools/lib/libstdc++.la > /usr/lib/libstdc++.la
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-ln -sv bash /bin/sh
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# Config files
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cp -rvf $(DIR_SRC)/config/etc/* /etc;
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cp -rvf $(DIR_SRC)/config/lib/* /lib;
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touch /etc/{fs,m}tab
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echo "$(NAME) v$(VERSION) - $(SLOGAN)" > /etc/issue
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echo "===============================" >> /etc/issue
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echo "\n running on \s \r \m" >> /etc/issue
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# Bash startup files
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install --directory --mode=0755 --owner=root --group=root /etc/profile.d
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for i in $(DIR_SRC)/config/profile.d/*; do \
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[ -f $$i ] && cp $$i /etc/profile.d; \
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done
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chmod 755 /etc/bashrc
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# Install root's bash files.
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for i in $(DIR_SRC)/config/bash/dot_*; do \
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[ -f $$i ] && cp $$i /root/$$(basename $${i/dot_/\.}); \
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done
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# Scripts
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for i in `find $(DIR_SRC)/src/scripts -maxdepth 1 -type f`; do \
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sed "s+CONFIG_ROOT+$(CONFIG_ROOT)+g" $$i > /usr/local/bin/`basename $$i`; \
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chmod 755 /usr/local/bin/`basename $$i`; \
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done
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# Move script to correct place.
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mv -vf /usr/local/bin/ovpn-ccd-convert /usr/sbin/
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mv -vf /usr/local/bin/ovpn-collectd-convert /usr/sbin/
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# Install firewall scripts.
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mkdir -pv /usr/lib/firewall
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install -m 755 $(DIR_SRC)/config/firewall/rules.pl \
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/usr/lib/firewall/rules.pl
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install -m 644 $(DIR_SRC)/config/firewall/firewall-lib.pl \
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/usr/lib/firewall/firewall-lib.pl
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install -m 755 $(DIR_SRC)/config/firewall/ipsec-block \
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/usr/lib/firewall/ipsec-block
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# Nobody user
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-mkdir -p /home/nobody
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chown -R nobody:nobody /home/nobody
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# Create /var dirs and files
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-mkdir -v /var/{lock,log,mail,spool,empty}
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-mkdir -pv /var/{opt,cache,lib/{misc,locate},local}
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-mkdir -pv /var/log/{counter,calamaris}
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chown nobody.nobody /var/log/calamaris
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touch /var/log/{btmp,lastlog,wtmp,net-traffic.log}
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chgrp -v utmp /var/log/lastlog
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chmod -v 664 /var/log/lastlog
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# Permissions
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chmod 0711 /var/empty
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# A small hack to include /root to the iso but not all of it's files.
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touch /root/ipfire
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# License agreement
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-mkdir -pv /usr/share/doc/licenses/
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cp -vf $(DIR_SRC)/doc/COPYING /usr/share/doc/licenses/GPLv3
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# System release
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echo "$(SYSTEM_RELEASE)" > /etc/system-release
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# Pakfire
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-mkdir -pv /opt/pakfire/db/core
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echo "$(PAKFIRE_CORE)" > /opt/pakfire/db/core/mine
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@$(POSTBUILD)
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