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https://github.com/freebsd/freebsd-src
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f99f0ee14e
This gives more permissions to services (e.g. network access to services which require this) when they are started as an automatic service jail. The sshd patch is important for the sshd-related functionality as described in the man-page in the service jails part. The location of the added env vars is supposed to allow overriding them in rc.conf, and to hard-disable the use of svcj for some parts where it doesn't make sense or will not work. Only a subset of all of the services are fully tested (I'm running this since more than a year with various services started as service jails). The untested parts should be most of the time ok, in some edge-cases more permissions are needed inside the service jail. Differential Revision: https://reviews.freebsd.org/D40371
170 lines
3.5 KiB
Bash
Executable file
170 lines
3.5 KiB
Bash
Executable file
#!/bin/sh
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#
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#
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# PROVIDE: ipfw
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# REQUIRE: ppp
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# KEYWORD: nojailvnet
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. /etc/rc.subr
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. /etc/network.subr
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name="ipfw"
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desc="Firewall, traffic shaper, packet scheduler, in-kernel NAT"
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rcvar="firewall_enable"
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start_cmd="ipfw_start"
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start_precmd="ipfw_prestart"
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start_postcmd="ipfw_poststart"
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stop_cmd="ipfw_stop"
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status_cmd="ipfw_status"
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required_modules="ipfw"
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extra_commands="status"
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set_rcvar_obsolete ipv6_firewall_enable
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ipfw_prestart()
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{
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if checkyesno dummynet_enable; then
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required_modules="$required_modules dummynet"
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fi
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if checkyesno natd_enable; then
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required_modules="$required_modules ipdivert"
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fi
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if checkyesno firewall_nat_enable; then
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required_modules="$required_modules ipfw_nat"
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fi
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if checkyesno firewall_nat64_enable; then
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required_modules="$required_modules ipfw_nat64"
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fi
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if checkyesno firewall_nptv6_enable; then
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required_modules="$required_modules ipfw_nptv6"
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fi
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if checkyesno firewall_pmod_enable; then
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required_modules="$required_modules ipfw_pmod"
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fi
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}
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ipfw_start()
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{
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local _firewall_type _module _sysctl_reload
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if [ -n "${1}" ]; then
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_firewall_type=$1
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else
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_firewall_type=${firewall_type}
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fi
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_sysctl_reload=no
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for _module in ${required_modules}
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do
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if kldstat -qn ${_module}; then
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_sysctl_reload=yes
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break
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fi
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done
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if [ ${_sysctl_reload} = yes ]; then
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/etc/rc.d/sysctl reload
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fi
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# set the firewall rules script if none was specified
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[ -z "${firewall_script}" ] && firewall_script=/etc/rc.firewall
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if [ -r "${firewall_script}" ]; then
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/bin/sh "${firewall_script}" "${_firewall_type}"
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echo 'Firewall rules loaded.'
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elif [ "`ipfw list 65535`" = "65535 deny ip from any to any" ]; then
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echo 'Warning: kernel has firewall functionality, but' \
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'firewall rules are not enabled.'
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echo ' All ip services are disabled.'
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fi
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# Firewall logging
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#
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if checkyesno firewall_logging; then
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echo 'Firewall logging enabled.'
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${SYSCTL} net.inet.ip.fw.verbose=1 >/dev/null
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fi
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if checkyesno firewall_logif; then
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if ! ifconfig ipfw0 >/dev/null 2>&1; then
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ifconfig ipfw0 create
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echo 'Firewall logging pseudo-interface (ipfw0)' \
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'created.'
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else
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echo 'Firewall logging pseudo-interface (ipfw0)' \
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'already created.'
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fi
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fi
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}
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ipfw_poststart()
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{
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local _coscript
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# Start firewall coscripts
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#
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for _coscript in ${firewall_coscripts} ; do
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if [ -f "${_coscript}" ]; then
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${_coscript} quietstart
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fi
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done
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# Enable the firewall
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#
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if ! ${SYSCTL} net.inet.ip.fw.enable=1 >/dev/null 2>&1; then
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warn "failed to enable IPv4 firewall"
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fi
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if afexists inet6; then
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if ! ${SYSCTL} net.inet6.ip6.fw.enable=1 >/dev/null 2>&1
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then
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warn "failed to enable IPv6 firewall"
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fi
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fi
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}
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ipfw_stop()
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{
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local _coscript
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# Disable the firewall
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#
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${SYSCTL} net.inet.ip.fw.enable=0 >/dev/null
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if afexists inet6; then
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${SYSCTL} net.inet6.ip6.fw.enable=0 >/dev/null
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fi
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# Stop firewall coscripts
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#
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for _coscript in `reverse_list ${firewall_coscripts}` ; do
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if [ -f "${_coscript}" ]; then
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${_coscript} quietstop
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fi
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done
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}
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ipfw_status()
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{
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status=$(sysctl -i -n net.inet.ip.fw.enable)
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: ${status:=0}
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if afexists inet6; then
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status6=$(sysctl -i -n net.inet6.ip6.fw.enable)
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: ${status6:=0}
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status=$((${status} + ${status6}))
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fi
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if [ ${status} -eq 0 ]; then
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echo "ipfw is not enabled"
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exit 1
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else
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echo "ipfw is enabled"
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exit 0
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fi
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}
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load_rc_config $name
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firewall_coscripts="/etc/rc.d/natd ${firewall_coscripts}"
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# doesn't make sense to run in a svcj: config setting
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ipfw_svcj="NO"
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run_rc_command $*
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