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Import openresolv 3.7.0.

Browse Source 
PR:		199854
Obtained from:	http://roy.marples.name/projects/openresolv
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Glen Barber 2015-05-04 20:51:27 +00:00
parent 093c93c350
commit e995a96df6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor/openresolv/dist/; revision=282431
svn path=/vendor/openresolv/3.7.0/; revision=282432; tag=vendor/openresolv/3.7.0
13 changed files with 1046 additions and 256 deletions
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4
GNUmakefile Normal file
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@ -0,0 +1,4 @@
# Nasty hack so that make clean works without configure being run
CONFIG_MK?=$(shell test -e config.mk && echo config.mk || echo config-null.mk)
include Makefile

55
Makefile
View File

@ -1,8 +1,19 @@
include config.mk
PKG= openresolv
VERSION= 3.7.0
NAME= openresolv
VERSION= 3.4.4
PKG= ${NAME}-${VERSION}
# Nasty hack so that make clean works without configure being run
_CONFIG_MK!= test -e config.mk && echo config.mk || echo config-null.mk
CONFIG_MK?= ${_CONFIG_MK}
include ${CONFIG_MK}
SBINDIR?= /sbin
SYSCONFDIR?= /etc
LIBEXECDIR?= /libexec/resolvconf
VARDIR?= /var/run/resolvconf
RCDIR?= /etc/rc.d
RESTARTCMD?= if ${RCDIR}/\1 status >/dev/null 2>\&1; then \
${RCDIR}/\1 restart; \
fi
INSTALL?= install
SED?= sed
@ -17,31 +28,36 @@ TARGET= ${RESOLVCONF} ${SUBSCRIBERS}
SRCS= ${TARGET:C,$,.in,} # pmake
SRCS:= ${TARGET:=.in} # gmake
SED_PREFIX= -e 's:@PREFIX@:${PREFIX}:g'
SED_SBINDIR= -e 's:@SBINDIR@:${SBINDIR}:g'
SED_SYSCONFDIR= -e 's:@SYSCONFDIR@:${SYSCONFDIR}:g'
SED_LIBEXECDIR= -e 's:@LIBEXECDIR@:${LIBEXECDIR}:g'
SED_VARDIR= -e 's:@VARDIR@:${VARDIR}:g'
SED_RCDIR= -e 's:@RCDIR@:${RCDIR}:g'
SED_RESTARTCMD= -e 's:@RESTARTCMD \(.*\)@:${RESTARTCMD}:g'
DISTPREFIX?= ${PKG}-${VERSION}
DISTFILEGZ?= ${DISTPREFIX}.tar.gz
DISTFILE?= ${DISTPREFIX}.tar.bz2
FOSSILID?= current
.SUFFIXES: .in
all: ${TARGET}
.in:
${SED} ${SED_PREFIX} ${SED_SYSCONFDIR} ${SED_LIBEXECDIR} \
${SED} ${SED_SBINDIR} ${SED_SYSCONFDIR} ${SED_LIBEXECDIR} \
${SED_VARDIR} ${SED_RCDIR} ${SED_RESTARTCMD} \
$< > $@
clean:
rm -f ${TARGET} openresolv-${VERSION}.tar.bz2
rm -f ${TARGET}
distclean: clean
rm -f config.mk
rm -f config.mk ${DISTFILE}
installdirs:
install: ${TARGET}
proginstall: ${TARGET}
${INSTALL} -d ${DESTDIR}${SBINDIR}
${INSTALL} -m ${BINMODE} resolvconf ${DESTDIR}${SBINDIR}
${INSTALL} -d ${DESTDIR}${SYSCONFDIR}
@ -49,18 +65,21 @@ install: ${TARGET}
${INSTALL} -m ${DOCMODE} resolvconf.conf ${DESTDIR}${SYSCONFDIR}
${INSTALL} -d ${DESTDIR}${LIBEXECDIR}
${INSTALL} -m ${DOCMODE} ${SUBSCRIBERS} ${DESTDIR}${LIBEXECDIR}
maninstall:
${INSTALL} -d ${DESTDIR}${MANDIR}/man8
${INSTALL} -m ${MANMODE} resolvconf.8 ${DESTDIR}${MANDIR}/man8
${INSTALL} -d ${DESTDIR}${MANDIR}/man5
${INSTALL} -m ${MANMODE} resolvconf.conf.5 ${DESTDIR}${MANDIR}/man5
import:
rm -rf /tmp/${PKG}
${INSTALL} -d /tmp/${PKG}
cp README ${SRCS} /tmp/${PKG}
install: proginstall maninstall
dist: import
cp configure Makefile resolvconf.conf /tmp/${PKG}
tar cvjpf ${PKG}.tar.bz2 -C /tmp ${PKG}
rm -rf /tmp/${PKG}
ls -l ${PKG}.tar.bz2
import:
rm -rf /tmp/${DISTPREFIX}
${INSTALL} -d /tmp/${DISTPREFIX}
cp README ${SRCS} /tmp/${DISPREFIX}
dist:
fossil tarball --name ${DISTPREFIX} ${FOSSILID} ${DISTFILEGZ}
gunzip -c ${DISTFILEGZ} | bzip2 >${DISTFILE}
rm ${DISTFILEGZ}

1
config-null.mk Normal file
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@ -0,0 +1 @@
# This space left intentionally blank

133
configure vendored
View File

@ -18,7 +18,7 @@ for x do
--debug) DEBUG=$var;;
--disable-debug) DEBUG=no;;
--enable-debug) DEBUG=yes;;
--prefix) prefix=$var;;
--prefix) PREFIX=$var;;
--sysconfdir) SYSCONFDIR=$var;;
--bindir|--sbindir) SBINDIR=$var;;
--libexecdir) LIBEXECDIR=$var;;
@ -41,68 +41,76 @@ for x do
esac
done
if [ -z "$LIBEXECDIR" ]; then
printf "Checking for directory /libexec ... "
if [ -d /libexec ]; then
echo "yes"
LIBEXECDIR=$PREFIX/libexec/resolvconf
else
echo "no"
LIBEXECDIR=$PREFIX/lib/resolvconf
fi
fi
if [ -z "$RUNDIR" ]; then
printf "Checking for directory /run ... "
if [ -d /run ]; then
echo "yes"
RUNDIR=/run
else
echo "no"
RUNDIR=/var/run
fi
fi
: ${SED:=sed}
: ${PREFIX:=$prefix}
: ${SYSCONFDIR:=$PREFIX/etc}
: ${SBINDIR:=$PREFIX/sbin}
: ${LIBEXECDIR:=$PREFIX/libexec}
: ${LIBEXECDIR:=$PREFIX/libexec/resolvconf}
: ${STATEDIR:=/var}
: ${RUNDIR:=$STATEDIR/run}
: ${MANDIR:=${PREFIX:-/usr}/share/man}
eval SYSCONFDIR="$SYSCONFDIR"
eval SBINDIR="$SBINDIR"
eval LIBEXECDIR="$LIBEXECDIR/resolvconf"
eval LIBEXECDIR="$LIBEXECDIR"
eval VARDIR="$RUNDIR/resolvconf"
eval MANDIR="$MANDIR"
CONFIG_MK=config.mk
if [ -z "$BUILD" ]; then
BUILD=`uname -m`-`uname -s | tr '[:upper:]' '[:lower:]'`
fi
if [ -z "$HOST" ]; then
[ -z "$TARGET" ] && TARGET=$BUILD
HOST=$TARGET
fi
if [ -z "$TARGET" ]; then
[ -z "$HOST" ] && HOST=$BUILD
TARGET=$HOST
fi
# Debian and Slackware have linux in different places when dealing with
# autoconf, so we deal with that here.
if [ -z "$OS" ]; then
case "$TARGET" in
*-linux-*|linux-*|*-linux|linux) OS=linux;;
esac
# autoconf target triplet: cpu-vendor-os
BUILD=$(uname -m)-unknown-$(uname -s | tr '[:upper:]' '[:lower:]')
fi
: ${HOST:=$BUILD}
if [ -z "$OS" ]; then
# Derive OS from cpu-manufacturer-os-kernel
CPU=${TARGET%%-*}
REST=${TARGET#*-}
echo "Deriving operating system from ... $HOST"
# Derive OS from cpu-vendor-[kernel-]os
CPU=${HOST%%-*}
REST=${HOST#*-}
if [ "$CPU" != "$REST" ]; then
MANU=${REST%%-*}
VENDOR=${REST%%-*}
REST=${REST#*-}
if [ "$MANU" != "$REST" ]; then
if [ "$VENDOR" != "$REST" ]; then
# Use kernel if given, otherwise os
OS=${REST%%-*}
REST=${REST#*-}
if [ "$OS" != "$REST" ]; then
KERNEL=${REST%%-*}
else
# 3 tupple
KERNEL=$OS
OS=$MANU
MANU=
fi
else
# 2 tupple
OS=$MANU
MANU=
OS=$VENDOR
VENDOR=
fi
fi
# Work with cpu-kernel-os, ie Debian
case "$VENDOR" in
linux*|kfreebsd*) OS=$VENDOR; VENDOR= ;;
esac
# Special case
case "$OS" in
gnu*) OS=hurd;; # No HURD support as yet
esac
fi
echo "Configuring openresolv for ... $OS"
@ -118,17 +126,36 @@ for x in SYSCONFDIR SBINDIR LIBEXECDIR VARDIR MANDIR; do
echo "$x=$t $v" >>$CONFIG_MK
done
if [ -e /etc/arch-release -a -d /etc/rc.d ]; then
echo "Overriding service status check for Arch Linux"
RCDIR=/etc/rc.d
RESTARTCMD="[ -e /var/run/daemons/\1 ] \&\& /etc/rc.d/\1 restart"
echo "yes"
if [ -z "$RESTARTCMD" ]; then
printf "Checking for systemd ... "
if [ -x /bin/systemctl ]; then
RESTARTCMD="/bin/systemctl try-restart \1"
echo "yes"
elif [ -x /usr/bin/systemctl ]; then
RESTARTCMD="/usr/bin/systemctl try-restart \1"
echo "yes"
else
echo "no"
fi
fi
# Arch upgraded to systemd, so this check has to be just after systemd
# but higher than the others
if [ -z "$RESTARTCMD" ]; then
printf "Checking for Arch ... "
if [ -e /etc/arch-release -a -d /etc/rc.d ]; then
RCDIR=/etc/rc.d
RESTARTCMD="[ -e /var/run/daemons/\1 ] \&\& /etc/rc.d/\1 restart"
echo "yes"
else
echo "no"
fi
fi
if [ -z "$RESTARTCMD" ]; then
printf "Checking for OpenRC ... "
if [ -x /sbin/rc-service ]; then
RESTARTCMD="/sbin/rc-service -e \1 \&\& /sbin/rc-service \1 -- -Ds restart"
RESTARTCMD="if /sbin/rc-service -e \1; then /sbin/rc-service \1 -- -Ds restart; fi"
echo "yes"
else
echo "no"
@ -138,7 +165,7 @@ if [ -z "$RESTARTCMD" ]; then
printf "Checking for invoke-rc.d ... "
if [ -x /usr/sbin/invoke-rc.d ]; then
RCDIR=/etc/init.d
RESTARTCMD="/usr/sbin/invoke-rc.d --quiet \1 status >/dev/null 2>\&1 \&\& /usr/sbin/invoke-rc.d \1 restart"
RESTARTCMD="if /usr/sbin/invoke-rc.d --quiet \1 status >/dev/null 2>\&1; then /usr/sbin/invoke-rc.d \1 restart; fi"
echo "yes"
else
echo "no"
@ -148,7 +175,19 @@ if [ -z "$RESTARTCMD" ]; then
printf "Checking for service ... "
if [ -x /sbin/service ]; then
RCDIR=/etc/init.d
RESTARTCMD="/sbin/service \1 \&\& /sbin/service \1 restart"
RESTARTCMD="if /sbin/service \1; then /sbin/service \1 restart; fi"
echo "yes"
else
echo "no"
fi
fi
if [ -z "$RESTARTCMD" ]; then
printf "Checking for runit... "
if [ -x /bin/sv ]; then
RESTARTCMD="/bin/sv try-restart \1"
echo "yes"
elif [ -x /usr/bin/sv ]; then
RESTARTCMD="/usr/bin/sv try-restart \1"
echo "yes"
else
echo "no"
@ -159,7 +198,7 @@ if [ -z "$RESTARTCMD" ]; then
printf "Checking for $x ... "
if [ -d $x ]; then
RCDIR=$x
RESTARTCMD="$x/\1 status >/dev/null 2>\&1 \&\& $x/\1 restart"
RESTARTCMD="if $x/\1 status >/dev/null 2>\&1; then $x/\1 restart; fi"
echo "yes"
break
else
@ -169,7 +208,7 @@ if [ -z "$RESTARTCMD" ]; then
fi
if [ -z "$RESTARTCMD" ]; then
echo "WARNING! No means of interacting with system services detected!"
echo "$0: WARNING: No means of interacting with system services detected!"
exit 1
fi

138
dnsmasq.in
View File

@ -1,5 +1,5 @@
#!/bin/sh
# Copyright (c) 2007-2011 Roy Marples
# Copyright (c) 2007-2012 Roy Marples
# All rights reserved
# dnsmasq subscriber for resolvconf
@ -29,12 +29,13 @@
[ -f "@SYSCONFDIR@"/resolvconf.conf ] || exit 0
. "@SYSCONFDIR@/resolvconf.conf" || exit 1
[ -z "$dnsmasq_conf" -a -z "$dnsmasq_resolv" ] && exit 0
[ -z "$RESOLVCONF" ] && eval "$(@PREFIX@/sbin/resolvconf -v)"
[ -z "$RESOLVCONF" ] && eval "$(@SBINDIR@/resolvconf -v)"
NL="
"
: ${dnsmasq_pid:=/var/run/dnsmasq.pid}
[ -s "$dnsmasq_pid" ] || dnsmasq_pid=/var/run/dnsmasq/dnsmasq.pid
[ -s "$dnsmasq_pid" ] || unset dnsmasq_pid
: ${dnsmasq_service:=dnsmasq}
: ${dnsmasq_restart:=@RESTARTCMD ${dnsmasq_service}@}
newconf="# Generated by resolvconf$NL"
@ -46,21 +47,18 @@ newresolv="$newconf"
# so we need to validate a few things first.
# Check for DBus support in the binary
dbus=false
: ${dbus_pid:=/var/run/dbus/dbus.pid}
[ -s "$dbus_pid" ] || dbus_pid=/var/run/dbus.pid
[ -s "$dbus_pid" ] || dbus_pid=/var/run/dbus/pid
if [ -s "$dbus_pid" -a -s "$dnsmasq_pid" ]; then
if dnsmasq --version 2>/dev/null | \
grep -q "^Compile time options.*[[:space:]]DBus[[:space:]]"
dbus_ex=false
dbus_introspect=$(dbus-send --print-reply --system \
--dest=uk.org.thekelleys.dnsmasq \
/uk/org/thekelleys/dnsmasq \
org.freedesktop.DBus.Introspectable.Introspect \
2>/dev/null)
if [ $? = 0 ]; then
dbus=true
if printf %s "$dbus_introspect" | \
grep -q '<method name="SetDomainServers">'
then
# Sanity - check that dnsmasq and dbus are running
if kill -0 $(cat "$dbus_pid") 2>/dev/null && \
kill -0 $(cat "$dnsmasq_pid") 2>/dev/null
then
dbus=true
newconf="$newconf$NL# Domain specific servers will"
newconf="$newconf be sent over dbus${NL}enable-dbus$NL"
fi
dbus_ex=true
fi
fi
@ -69,35 +67,95 @@ for n in $NAMESERVERS; do
done
dbusdest=
dbusdest_ex=
conf=
for d in $DOMAINS; do
dn="${d%%:*}"
ns="${d#*:}"
while [ -n "$ns" ]; do
if $dbus; then
SIFS=${IFS-y} OIFS=$IFS
IFS=.
set -- ${ns%%,*}
num="0x$(printf %02x $1 $2 $3 $4)"
if [ "$SIFS" = yi ]; then
unset IFS
else
IFS=$OIFS
fi
dbusdest="$dbusdest uint32:$(printf %u $num)"
dbusdest="$dbusdest string:$dn"
else
newconf="${newconf}server=/$dn/${ns%%,*}$NL"
n="${ns%%,*}"
if $dbus && ! $dbus_ex; then
case "$n" in
*.*.*.*)
SIFS=${IFS-y} OIFS=$IFS
IFS=.
set -- $n
num="0x$(printf %02x $1 $2 $3 $4)"
if [ "$SIFS" = y ]; then
unset IFS
else
IFS=$OIFS
fi
dbusdest="$dbusdest uint32:$(printf %u $num)"
dbusdest="$dbusdest string:$dn"
;;
*:*%*)
# This version of dnsmasq won't accept
# scoped IPv6 addresses
dbus=false
;;
*:*)
SIFS=${IFS-y} OIFS=$IFS bytes= front= back=
empty=false i=0
IFS=:
set -- $n
while [ -n "$1" -o -n "$2" ]; do
addr="$1"
shift
if [ -z "$addr" ]; then
empty=true
continue
fi
i=$(($i + 1))
while [ ${#addr} -lt 4 ]; do
addr="0${addr}"
done
byte1="$(printf %d 0x${addr%??})"
byte2="$(printf %d 0x${addr#??})"
if $empty; then
back="$back byte:$byte1 byte:$byte2"
else
front="$front byte:$byte1 byte:$byte2"
fi
done
while [ $i != 8 ]; do
i=$(($i + 1))
front="$front byte:0 byte:0"
done
front="${front}$back"
if [ "$SIFS" = y ]; then
unset IFS
else
IFS=$OIFS
fi
dbusdest="${dbusdest}$front string:$dn"
;;
*)
if ! $dbus_ex; then
dbus=false
fi
;;
esac
fi
dbusdest_ex="$dbusdest_ex${dbusdest_ex:+,}/$dn/$n"
conf="${conf}server=/$dn/$n$NL"
[ "$ns" = "${ns#*,}" ] && break
ns="${ns#*,}"
done
done
if $dbus; then
newconf="$newconf$NL# Domain specific servers will"
newconf="$newconf be sent over dbus${NL}"
else
newconf="$newconf$conf"
fi
# Try to ensure that config dirs exist
if type config_mkdirs >/dev/null 2>&1; then
config_mkdirs "$dnsmasq_conf" "$dnsmasq_resolv"
else
@PREFIX@/sbin/resolvconf -D "$dnsmasq_conf" "$dnsmasq_resolv"
@SBINDIR@/resolvconf -D "$dnsmasq_conf" "$dnsmasq_resolv"
fi
changed=false
@ -110,14 +168,13 @@ if [ -n "$dnsmasq_conf" ]; then
fi
fi
if [ -n "$dnsmasq_resolv" ]; then
# dnsmasq polls this file so no need to set changed=true
if [ -f "$dnsmasq_resolv" ]; then
if [ "$(cat "$dnsmasq_resolv")" != "$(printf %s "$newresolv")" ]
then
changed=true
printf %s "$newresolv" >"$dnsmasq_resolv"
fi
else
# dnsmasq polls this file so no need to set changed=true
printf %s "$newresolv" >"$dnsmasq_resolv"
fi
fi
@ -126,9 +183,20 @@ if $changed; then
eval $dnsmasq_restart
fi
if $dbus; then
$changed || kill -HUP $(cat "$dnsmasq_pid")
if [ -s "$dnsmasq_pid" ]; then
$changed || kill -HUP $(cat "$dnsmasq_pid")
fi
# Send even if empty so old servers are cleared
if $dbus_ex; then
method=SetDomainServers
if [ -n "$dbusdest_ex" ]; then
dbusdest_ex="array:string:$dbusdest_ex"
fi
dbusdest="$dbusdest_ex"
else
method=SetServers
fi
dbus-send --system --dest=uk.org.thekelleys.dnsmasq \
/uk/org/thekelleys/dnsmasq uk.org.thekelleys.SetServers \
/uk/org/thekelleys/dnsmasq uk.org.thekelleys.$method \
$dbusdest
fi

126
libc.in
View File

@ -1,5 +1,5 @@
#!/bin/sh
# Copyright (c) 2007-2011 Roy Marples
# Copyright (c) 2007-2014 Roy Marples
# All rights reserved
# libc subscriber for resolvconf
@ -36,18 +36,18 @@ NL="
# sed may not be available, and this is faster on small files
key_get_value()
{
local key="$1" value= x= line=
local key="$1" x= line=
shift
if [ $# -eq 0 ]; then
while read line; do
while read -r line; do
case "$line" in
"$key"*) echo "${line##$key}";;
esac
done
else
for x; do
while read line; do
for x do
while read -r line; do
case "$line" in
"$key"*) echo "${line##$key}";;
esac
@ -56,6 +56,24 @@ key_get_value()
fi
}
keys_remove()
{
local key x line found
while read -r line; do
found=false
for key do
case "$line" in
"$key"*|"#"*|" "*|" "*|"") found=true;;
esac
$found && break
done
$found || echo "$line"
done
}
local_nameservers="127.* 0.0.0.0 255.255.255.255 ::1"
# Support original resolvconf configuration layout
# as well as the openresolv config file
if [ -f "$SYSCONFDIR"/resolvconf.conf ]; then
@ -64,12 +82,11 @@ elif [ -d "$SYSCONFDIR"/resolvconf ]; then
SYSCONFDIR="$SYSCONFDIR/resolvconf/resolv.conf.d"
base="$SYSCONFDIR/resolv.conf.d/base"
if [ -f "$base" ]; then
name_servers="$(key_get_value "nameserver " "$base")"
search_domains="$(key_get_value "search " "$base")"
if [ -z "$search_domains" ]; then
search_domains="$(key_get_value "domain " "$base")"
fi
prepend_nameservers="$(key_get_value "nameserver " "$base")"
domain="$(key_get_value "domain " "$base")"
prepend_search="$(key_get_value "search " "$base")"
resolv_conf_options="$(key_get_value "options " "$base")"
resolv_conf_sortlist="$(key_get_value "sortlist " "$base")"
fi
if [ -f "$SYSCONFDIR"/resolv.conf.d/head ]; then
resolv_conf_head="$(cat "${SYSCONFDIR}"/resolv.conf.d/head)"
@ -81,7 +98,7 @@ fi
: ${resolv_conf:=/etc/resolv.conf}
: ${libc_service:=nscd}
: ${libc_restart:=@RESTARTCMD ${libc_service}@}
: ${list_resolv:=@PREFIX@/sbin/resolvconf -l}
: ${list_resolv:=@SBINDIR@/resolvconf -l}
if [ "${resolv_conf_head-x}" = x -a -f "$SYSCONFDIR"/resolv.conf.head ]; then
resolv_conf_head="$(cat "${SYSCONFDIR}"/resolv.conf.head)"
fi
@ -89,6 +106,9 @@ if [ "${resolv_conf_tail-x}" = x -a -f "$SYSCONFDIR"/resolv.conf.tail ]; then
resolv_conf_tail="$(cat "$SYSCONFDIR"/resolv.conf.tail)"
fi
backup=true
signature="# Generated by resolvconf"
uniqify()
{
local result=
@ -104,6 +124,7 @@ uniqify()
case "${resolv_conf_passthrough:-NO}" in
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
backup=false
newest=
for conf in "$IFACEDIR"/*; do
if [ -z "$newest" -o "$conf" -nt "$newest" ]; then
@ -113,31 +134,70 @@ case "${resolv_conf_passthrough:-NO}" in
[ -z "$newest" ] && exit 0
newconf="$(cat "$newest")$NL"
;;
/dev/null|[Nn][Uu][Ll][Ll])
: ${resolv_conf_local_only:=NO}
if [ "$local_nameservers" = "127.* 0.0.0.0 255.255.255.255 ::1" ]; then
local_nameservers=
fi
# Need to overwrite our variables.
eval "$(@SBINDIR@/resolvconf -V)"
;;
*)
[ -z "$RESOLVCONF" ] && eval "$(@PREFIX@/sbin/resolvconf -v)"
newsearch="$(uniqify $search_domains $SEARCH $search_domains_append)"
[ -z "$RESOLVCONF" ] && eval "$(@SBINDIR@/resolvconf -v)"
;;
esac
case "${resolv_conf_passthrough:-NO}" in
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) ;;
*)
: ${domain:=$DOMAIN}
newsearch="$(uniqify $prepend_search $SEARCH $append_search)"
NS="$LOCALNAMESERVERS $NAMESERVERS"
newns="$(uniqify $name_servers $NS $name_servers_append)"
newns=
gotlocal=false
for n in $(uniqify $prepend_nameservers $NS $append_nameservers); do
add=true
islocal=false
for l in $local_nameservers; do
case "$n" in
$l) islocal=true; gotlocal=true; break;;
esac
done
if ! $islocal; then
case "${resolv_conf_local_only:-YES}" in
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
$gotlocal && add=false;;
esac
fi
$add && newns="$newns $n"
done
# Hold our new resolv.conf in a variable to save on temporary files
newconf="# Generated by resolvconf$NL"
newconf="$signature$NL"
if [ -n "$resolv_conf_head" ]; then
newconf="$newconf$resolv_conf_head$NL"
fi
[ -n "$newsearch" ] && newconf="${newconf}search $newsearch$NL"
[ -n "$domain" ] && newconf="${newconf}domain $domain$NL"
if [ -n "$newsearch" -a "$newsearch" != "$domain" ]; then
newconf="${newconf}search $newsearch$NL"
fi
for n in $newns; do
newconf="${newconf}nameserver $n$NL"
done
# Now get any configured options
opts="$resolv_conf_options${resolv_conf_options:+ }"
opts="$opts$($list_resolv | key_get_value "options ")"
if [ -n "$opts" ]; then
newconf="${newconf}options"
for opt in $(uniqify $opts); do
newconf="${newconf} $opt"
done
newconf="$newconf$NL"
# Now add anything we don't care about such as sortlist and options
stuff="$($list_resolv | keys_remove nameserver domain search)"
if [ -n "$stuff" ]; then
newconf="$newconf$stuff$NL"
fi
# Append any user defined ones
if [ -n "$resolv_conf_options" ]; then
newconf="${newconf}options $resolv_conf_options$NL"
fi
if [ -n "$resolv_conf_sortlist" ]; then
newconf="${newconf}sortlist $resolv_conf_sortlist$NL"
fi
if [ -n "$resolv_conf_tail" ]; then
@ -151,6 +211,22 @@ if [ -e "$resolv_conf" ]; then
[ "$(cat "$resolv_conf")" = "$(printf %s "$newconf")" ] && exit 0
fi
# Change is good.
# If the old file does not have our signature, back it up.
# If the new file just has our signature, restore the backup.
if $backup; then
if [ "$newconf" = "$signature$NL" ]; then
if [ -e "$resolv_conf.bak" ]; then
newconf="$(cat "$resolv_conf.bak")"
fi
elif [ -e "$resolv_conf" ]; then
read line <"$resolv_conf"
if [ "$line" != "$signature" ]; then
cp "$resolv_conf" "$resolv_conf.bak"
fi
fi
fi
# Create our resolv.conf now
(umask 022; printf %s "$newconf" >"$resolv_conf")
eval $libc_restart

9
named.in
View File

@ -1,5 +1,5 @@
#!/bin/sh
# Copyright (c) 2007-2011 Roy Marples
# Copyright (c) 2007-2012 Roy Marples
# All rights reserved
# named subscriber for resolvconf
@ -29,7 +29,7 @@
[ -f "@SYSCONFDIR@"/resolvconf.conf ] || exit 0
. "@SYSCONFDIR@/resolvconf.conf" || exit 1
[ -z "$named_zones" -a -z "$named_options" ] && exit 0
[ -z "$RESOLVCONF" ] && eval "$(@PREFIX@/sbin/resolvconf -v)"
[ -z "$RESOLVCONF" ] && eval "$(@SBINDIR@/resolvconf -v)"
NL="
"
@ -40,6 +40,9 @@ then
if [ -x "@RCDIR@"/bind9 ]; then
# Debian and derivatives
named_service=bind9
elif [ -x "@RCDIR@"/rc.bind ]; then
# Slackware
named_service=rc.bind
fi
fi
: ${named_service:=named}
@ -75,7 +78,7 @@ done
if type config_mkdirs >/dev/null 2>&1; then
config_mkdirs "$named_options" "$named_zones"
else
@PREFIX@/sbin/resolvconf -D "$named_options" "$named_zones"
@SBINDIR@/resolvconf -D "$named_options" "$named_zones"
fi
# No point in changing files or reloading bind if the end result has not

72
pdns_recursor.in Normal file
View File

@ -0,0 +1,72 @@
#!/bin/sh
# Copyright (c) 2009-2011 Roy Marples
# All rights reserved
# PowerDNS Recursor subscriber for resolvconf
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
[ -f "@SYSCONFDIR@"/resolvconf.conf ] || exit 0
. "@SYSCONFDIR@/resolvconf.conf" || exit 1
[ -z "$pdns_zones" ] && exit 0
[ -z "$RESOLVCONF" ] && eval "$(@SBINDIR@/resolvconf -v)"
NL="
"
: ${pdns_service:=pdns_recursor}
: ${pdns_restart:=@RESTARTCMD ${pdns_service}@}
newzones=
# pds_recursor does not present support global forward servers, which
# does limit it's usefulness somewhat.
# If it did, the below code can be enabled, or something like it.
#for n in $NAMESERVERS; do
# newzones="$newzones${newzones:+,}$n"
#done
#[ -n "$newzones" ] && newzones=".=$newzones$NL"
for d in $DOMAINS; do
newns=
ns="${d#*:}"
while [ -n "$ns" ]; do
newns="$newns${newns:+,}${ns%%,*}"
[ "$ns" = "${ns#*,}" ] && break
ns="${ns#*,}"
done
[ -n "$newns" ] && newzones="$newzones${d%%:*}=$newns$NL"
done
# Try to ensure that config dirs exist
if type config_mkdirs >/dev/null 2>&1; then
config_mkdirs "$pdnsd_zones"
else
@SBINDIR@/resolvconf -D "$pdnsd_zones"
fi
if [ ! -f "$pdns_zones" ] || \
[ "$(cat "$pdns_zones")" != "$(printf %s "$newzones")" ]
then
printf %s "$newzones" >"$pdns_zones"
eval $pdns_restart
fi

14
pdnsd.in
View File

@ -1,5 +1,5 @@
#!/bin/sh
# Copyright (c) 2010-2011 Roy Marples
# Copyright (c) 2010-2013 Roy Marples
# All rights reserved
# pdnsd subscriber for resolvconf
@ -29,7 +29,7 @@
[ -f "@SYSCONFDIR@"/resolvconf.conf ] || exit 0
. "@SYSCONFDIR@/resolvconf.conf" || exit 1
[ -z "$pdnsd_conf" -a -z "$pdnsd_resolv" ] && exit 0
[ -z "$RESOLVCONF" ] && eval "$(@PREFIX@/sbin/resolvconf -v)"
[ -z "$RESOLVCONF" ] && eval "$(@SBINDIR@/resolvconf -v)"
NL="
"
@ -48,7 +48,7 @@ remove_markers()
sed "/^$m1/,/^$m2/d" $@
else
for x; do
while read line; do
while read -r line; do
case "$line" in
"$m1"*) in_marker=1;;
"$m2"*) in_marker=0;;
@ -82,19 +82,19 @@ change_file()
return 0
}
newresolv="# Generated by resolvconf\n"
newresolv="# Generated by resolvconf$NL"
changed=false
# Try to ensure that config dirs exist
if type config_mkdirs >/dev/null 2>&1; then
config_mkdirs "$pdnsd_resolv" "$pdnsd_conf"
else
@PREFIX@/sbin/resolvconf -D "$pdnsd_resolv" "$pdnsd_conf"
@SBINDIR@/resolvconf -D "$pdnsd_resolv" "$pdnsd_conf"
fi
if [ -n "$pdnsd_resolv" ]; then
for n in $NAMESERVERS; do
newresolv="${newresolv}nameserver $n\n"
newresolv="${newresolv}nameserver $n$NL"
done
fi
@ -146,7 +146,7 @@ if [ -w "$pdnsd_conf" ]; then
fi
if change_file "$pdnsd_conf" "$cf"; then
changed=true
fi
fi
fi
if [ -n "$pdnsd_resolv" ]; then

94
resolvconf.8.in
View File

@ -1,4 +1,4 @@
.\" Copyright (c) 2007-2011 Roy Marples
.\" Copyright (c) 2007-2015 Roy Marples
.\" All rights reserved
.\"
.\" Redistribution and use in source and binary forms, with or without
@ -22,8 +22,8 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.Dd May 13, 2011
.Dt RESOLVCONF 8 SMM
.Dd April 27, 2014
.Dt RESOLVCONF 8
.Os
.Sh NAME
.Nm resolvconf
@ -34,11 +34,14 @@
.Nm
.Op Fl m Ar metric
.Op Fl p
.Fl a Ar interface No < Ns Pa file
.Op Fl x
.Fl a Ar interface Ns Op Ar .protocol
.No < Ns Pa file
.Nm
.Op Fl f
.Fl d Ar interface
.Fl d Ar interface Ns Op Ar .protocol
.Nm
.Op Fl x
.Fl il Ar pattern
.Nm
.Fl u
@ -63,7 +66,7 @@ file to
via
.Xr stdin 3
with the argument
.Fl a Ar interface
.Fl a Ar interface Ns Op Ar .protocol
instead of the filesystem.
.Nm
then updates
@ -78,6 +81,20 @@ then
will supply files that the resolver should be configured to include.
.Pp
.Nm
assumes it has a job to do.
In some situations
.Nm
needs to act as a deterrent to writing to
.Pa /etc/resolv.conf .
Where this file cannot be made immutable or you just need to toggle this
behaviour,
.Nm
can be disabled by adding
.Sy resolvconf Ns = Ns NO
to
.Xr resolvconf.conf 5 .
.Pp
.Nm
can mark an interfaces
.Pa resolv.conf
as private.
@ -91,13 +108,21 @@ for how to configure
.Nm
to use a local name server.
.Pp
.Nm
can mark an interfaces
.Pa resolv.conf
as exclusive.
Only the latest exclusive interface is used for processing, otherwise all are.
.Pp
When an interface goes down, it should then call
.Nm
with
.Fl d Ar interface
.Fl d Ar interface.*
arguments to delete the
.Pa resolv.conf
file for the
file(s) for all the
.Ar protocols
on the
.Ar interface .
.Pp
Here are some more options that
@ -119,7 +144,7 @@ is used to add interfaces.
Ignore non existant interfaces.
Only really useful for deleting interfaces.
.It Fl i Ar pattern
List the interfaces, optionally matching
List the interfaces and protocols, optionally matching
.Ar pattern ,
we have
.Pa resolv.conf
@ -130,7 +155,8 @@ List the
files we have.
If
.Ar pattern
is specified then we list the files for the interfaces that match it.
is specified then we list the files for the interfaces and protocols
that match it.
.It Fl m Ar metric
Set the metric of the interface when adding it, default of 0.
Lower metrics take precedence.
@ -142,18 +168,28 @@ as private.
.It Fl u
Force
.Nm
to update all it's subscribers.
to update all its subscribers.
.Nm
does not update the subscribers when adding a resolv.conf that matches
what it already has for that interface.
.It Fl x
Mark the interface
.Pa resolv.conf
as exclusive when adding, otherwise only use the latest exclusive interface.
.El
.Pp
.Nm
also has some options designed to be used by it's subscribers:-
also has some options designed to be used by its subscribers:-
.Bl -tag -width indent
.It Fl v
Echo variables DOMAINS, SEARCH and NAMESERVERS so that the subscriber can
configure the resolver easily.
.It Fl V
Same as
.Fl v
except that only the information configured in
.Xr resolvconf.conf 5
is set.
.El
.Sh INTERFACE ORDERING
For
@ -170,6 +206,29 @@ the operating systems lexical order.
See
.Xr resolvconf.conf 5
for details on these lists.
.Sh PROTOCOLS
Here are some suggested protocol tags to use for each
.Pa resolv.conf
file registered on an
.Ar interface Ns No :-
.Bl -tag -width indent
.It dhcp
Dynamic Host Configuration Protocol.
Initial versions of
.Nm
did not recommend a
.Ar protocol
tag be appended to the
.Ar interface
name.
When the protocol is absent, it is assumed to be the DHCP protocol.
.It ppp
Point-to-Point Protocol.
.It ra
IPv6 Router Advertisement.
.It dhcp6
Dynamic Host Configuration Protocol, version 6.
.El
.Sh IMPLEMENTATION NOTES
If a subscriber has the executable bit then it is executed otherwise it is
assumed to be a shell script and sourced into the current environment in a
@ -197,9 +256,15 @@ for the metric.
Marks the interface
.Pa resolv.conf
as private.
.It Va IF_EXCLUSIVE
Marks the interface
.Pa resolv.conf
as exclusive.
.El
.Sh FILES
.Bl -ohang
.It Pa /etc/resolv.conf.bak
Backup file of the original resolv.conf.
.It Pa @SYSCONFDIR@/resolvconf.conf
Configuration file for
.Nm .
@ -224,9 +289,10 @@ resolvconf, as written by Thomas Hood.
.Xr resolver 3 ,
.Xr stdin 3
.Sh AUTHORS
.An Roy Marples Aq roy@marples.name
.An Roy Marples Aq Mt roy@marples.name
.Sh BUGS
Please report them to http://roy.marples.name/projects/openresolv
Please report them to
.Lk http://roy.marples.name/projects/openresolv
.Pp
.Nm
does not validate any of the files given to it.

160
resolvconf.conf.5.in
View File

@ -1,4 +1,4 @@
.\" Copyright (c) 2009-2011 Roy Marples
.\" Copyright (c) 2009-2015 Roy Marples
.\" All rights reserved
.\"
.\" Redistribution and use in source and binary forms, with or without
@ -22,8 +22,8 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.Dd April 21, 2011
.Dt RESOLVCONF.CONF 5 SMM
.Dd March 20, 2015
.Dt RESOLVCONF.CONF 5
.Os
.Sh NAME
.Nm resolvconf.conf
@ -42,12 +42,22 @@ must contain valid shell commands.
Listed below are the standard
.Nm
variables that may be set.
If the values contain white space for special shell characters,
ensure they are quoted and escaped correctly.
.Pp
After updating this file, you may wish to run
.Nm resolvconf -u
to apply the new configuration.
.Pp
When a dynamically generated list is appended or prepended to, the whole
is made unique where left-most wins.
.Sh RESOLVCONF OPTIONS
.Bl -tag -width indent
.It Sy resolvconf
Set to NO to disable
.Nm resolvconf
from running any subscribers.
Defaults to YES.
.It Sy interface_order
These interfaces will always be processed first.
If unset, defaults to the following:-
@ -56,16 +66,27 @@ If unset, defaults to the following:-
These interfaces will be processed next, unless they have a metric.
If unset, defaults to the following:-
.D1 tap[0-9]* tun[0-9]* vpn vpn[0-9]* ppp[0-9]* ippp[0-9]*
.It Sy local_nameservers
If unset, defaults to the following:-
.D1 127.* 0.0.0.0 255.255.255.255 ::1
.It Sy search_domains
Prepend search domains to the dynamically generated list.
.It Sy search_domains_append
Append search domains to the dynamically generated list.
.It Sy domain_blacklist
A list of domains to be removed from consideration.
To remove a domain, you can use foo.*
To remove a sub domain, you can use *.bar
.It Sy name_servers
Prepend name servers to the dynamically generated list.
You should set this to 127.0.0.1 if you use a local name server other than
libc.
.It Sy name_servers_append
Append name servers to the dynamically generated list.
.It Sy name_server_blacklist
A list of name servers to be removed from consideration.
The default is 0.0.0.0 as some faulty routers send it via DHCP.
To remove a block, you can use 192.168.*
.It Sy private_interfaces
These interfaces name servers will only be queried for the domains listed
in their resolv.conf.
@ -73,6 +94,34 @@ Useful for VPN domains.
This is equivalent to the
.Nm resolvconf -p
option.
.It Sy replace
Is a space separated list of replacement keywords. The syntax is this:
.Va $keyword Ns / Ns Va $match Ns / Ns Va $replacement
.Pp
Example, given this resolv.conf:
.D1 domain foo.org
.D1 search foo.org dead.beef
.D1 nameserver 1.2.3.4
.D1 nameserver 2.3.4.5
and this configuaration:
.D1 replace="search/foo*/bar.com nameserver/1.2.3.4/5.6.7.8 nameserver/2.3.4.5/"
you would get this resolv.conf instead:
.D1 domain foo.org
.D1 search bar.com
.D1 nameserver 5.6.7.8
.It Sy replace_sub
Works the same way as
.Sy replace
except it works on each space separated value rather than the whole line,
so it's useful for the replacing a single domain within the search directive.
Using the same example resolv.conf and changing
.Sy replace
to
.Sy replace_sub ,
you would get this resolv.conf instead:
.D1 domain foo.org
.D1 search bar.com dead.beef
.D1 nameserver 5.6.7.8
.It Sy state_dir
Override the default state directory of
.Pa @VARDIR@ .
@ -96,6 +145,32 @@ A list of libc resolver options, as specified in
When set to YES the latest resolv.conf is written to
.Sy resolv_conf
without any alteration.
When set to /dev/null or NULL,
.Sy resolv_conf_local_only
is defaulted to NO,
.Sy local_nameservers
is unset unless overriden and only the information set in
.Nm
is written to
.Sy resolv_conf .
.It Sy resolv_conf_sortlist
A libc resolver sortlist, as specified in
.Xr resolv.conf 5 .
.It Sy resolv_conf_local_only
If a local name server is configured then the default is just to specify that
and ignore all other entries as they will be configured for the local
name server.
Set this to NO to also list non-local nameservers.
This will give you working DNS even if the local nameserver stops functioning
at the expense of duplicated server queries.
.It Sy append_nameservers
Append name servers to the dynamically generated list.
.It Sy prepend_nameservers
Prepend name servers to the dynamically generated list.
.It Sy append_search
Append search domains to the dynamically generated list.
.It Sy prepend_search
Prepend search domains to the dynamically generated list.
.El
.Sh SUBSCRIBER OPTIONS
openresolv ships with subscribers for the name servers
@ -106,30 +181,37 @@ and
.Xr unbound 8 .
Each subscriber can create configuration files which should be included in
in the subscribers main configuration file.
.Pp
To disable a subscriber, simply set it's name to NO.
For example, to disable the libc subscriber you would set:
.D1 libc=NO
.Bl -tag -width indent
.It Sy dnsmasq_conf
This file tells dnsmasq which nameservers to use for specific domains.
This file tells dnsmasq which name servers to use for specific domains.
.It Sy dnsmasq_resolv
This file tells dnsmasq which nameservers to use for global lookups.
This file tells dnsmasq which name servers to use for global lookups.
.Pp
Example resolvconf.conf for dnsmasq:
.D1 nameservers=127.0.0.1
.D1 name_servers=127.0.0.1
.D1 dnsmasq_conf=/etc/dnsmasq-conf.conf
.D1 dnsmasq_resolv=/etc/dnsmasq-resolv.conf
.Pp
Example dnsmasq.conf:
.D1 listen-address=127.0.0.1
.D1 # If dnsmasq is compiled for DBus then we can take
.D1 # advantage of not having to restart dnsmasq.
.D1 enable-dbus
.D1 conf-file=/etc/dnsmasq-conf.conf
.D1 resolv-file=/etc/dnsmasq-resolv.conf
.It Sy named_options
Include this file in the named options block.
This file tells named which nameservers to use for global lookups.
This file tells named which name servers to use for global lookups.
.It Sy named_zones
Include this file in the named global scope, after the options block.
This file tells named which nameservers to use for specific domains.
This file tells named which name servers to use for specific domains.
.Pp
Example resolvconf.conf for named:
.D1 nameservers=127.0.0.1
.D1 name_servers=127.0.0.1
.D1 named_options=/etc/named-options.conf
.D1 named_zones=/etc/named-zones.conf
.Pp
@ -147,12 +229,12 @@ setup to read
.Pa pdnsd_resolv
as documented below.
.It Sy pdnsd_resolv
This file tells pdnsd about global nameservers.
This file tells pdnsd about global name servers.
If this variable is not set then it's written to
.Pa pdnsd_conf .
.Pp
Example resolvconf.conf for pdnsd:
.D1 nameservers=127.0.0.1
.D1 name_servers=127.0.0.1
.D1 pdnsd_conf=/etc/pdnsd.conf
.D1 # pdnsd_resolv=/etc/pdnsd-resolv.conf
.Pp
@ -168,20 +250,64 @@ Example pdnsd.conf:
.D1 # file="/etc/pdnsd-resolv.conf";
.D1 }
.It Sy unbound_conf
This file tells unbound about specific and global nameservers.
This file tells unbound about specific and global name servers.
.It Sy unbound_insecure
When set to YES, unbound marks the domains as insecure, thus ignoring DNSSEC.
.Pp
Example resolvconf.conf for unbound:
.D1 nameservers=127.0.0.1
.D1 name_servers=127.0.0.1
.D1 unbound_conf=/etc/unbound-resolvconf.conf
.Pp
Example unbound.conf:
.D1 include: /etc/unbound-resolvconf.conf
.El
.Sh SUBSCRIBER INTEGRATION
Not all distributions store the files the subscribers need in the same
locations.
For example, named service scripts have been called named, bind and rc.bind
and they could be located in a directory called /etc/rc.d, /etc/init.d or
similar.
Each subscriber attempts to automatically configure itself, but not every
distribution has been catered for.
Also, users could equally want to use a different version from the one
installed by default, such as bind8 and bind9.
To accomodate this, the subscribers have these files in configurable
variables, documented below.
.Pp
.Bl -tag -width indent
.It Sy dnsmasq_service
Location of the dnsmasq service.
.It Sy dnsmasq_restart
Command to restart the dnsmasq service.
.It Sy dnsmasq_pid
Location of the dnsmasq pidfile.
.It Sy libc_service
Location of the libc service.
.It Sy libc_restart
Command to restart the libc service.
.It Sy named_service
Location of the named service.
.It Sy named_restart
Command to restart the named service.
.It Sy pdnsd_restart
Command to restart the pdnsd service.
.It Sy unbound_service
Location of the unbound service.
.It Sy unbound_restart
Command to restart the unbound service.
.It Sy unbound_pid
Location of the unbound pidfile.
.El
.Sh SEE ALSO
.Xr resolv.conf 5
.Xr resolv.conf 5 ,
.Xr resolvconf 8
and
.Xr resolvconf 8 .
.Xr sh 1 .
.Sh AUTHORS
.An Roy Marples Aq roy@marples.name
.An Roy Marples Aq Mt roy@marples.name
.Sh BUGS
Please report them to http://roy.marples.name/projects/openresolv
Each distribution is a special snowflake and likes to name the same thing
differently, namely the named service script.
.Pp
Please report them to
.Lk http://roy.marples.name/projects/openresolv

483
resolvconf.in
View File

@ -1,5 +1,5 @@
#!/bin/sh
# Copyright (c) 2007-2011 Roy Marples
# Copyright (c) 2007-2015 Roy Marples
# All rights reserved
# Redistribution and use in source and binary forms, with or without
@ -28,6 +28,17 @@ RESOLVCONF="$0"
SYSCONFDIR=@SYSCONFDIR@
LIBEXECDIR=@LIBEXECDIR@
VARDIR=@VARDIR@
# Disregard dhcpcd setting
unset interface_order state_dir
# If you change this, change the test in VFLAG and libc.in as well
local_nameservers="127.* 0.0.0.0 255.255.255.255 ::1"
dynamic_order="tap[0-9]* tun[0-9]* vpn vpn[0-9]* ppp[0-9]* ippp[0-9]*"
interface_order="lo lo[0-9]*"
name_server_blacklist="0.0.0.0"
# Support original resolvconf configuration layout
# as well as the openresolv config file
if [ -f "$SYSCONFDIR"/resolvconf.conf ]; then
@ -39,12 +50,17 @@ elif [ -d "$SYSCONFDIR/resolvconf" ]; then
interface_order="$(cat "$SYSCONFDIR"/interface-order)"
fi
fi
TMPDIR="$VARDIR/tmp"
IFACEDIR="$VARDIR/interfaces"
METRICDIR="$VARDIR/metrics"
PRIVATEDIR="$VARDIR/private"
EXCLUSIVEDIR="$VARDIR/exclusive"
LOCKDIR="$VARDIR/lock"
: ${dynamic_order:=tap[0-9]* tun[0-9]* vpn vpn[0-9]* ppp[0-9]* ippp[0-9]*}
: ${interface_order:=lo lo[0-9]*}
warn()
{
echo "$*" >&2
}
error_exit()
{
@ -64,6 +80,7 @@ usage()
(DNS supplied via stdin in resolv.conf format)
-m metric Give the added DNS information a metric
-p Mark the interface as private
-x Mark the interface as exclusive
-d \$INTERFACE Delete DNS information from the specified interface
-f Ignore non existant interfaces
-I Init the state dir
@ -84,16 +101,23 @@ usage()
echo_resolv()
{
local line=
[ -n "$1" -a -e "$IFACEDIR/$1" ] || return 1
local line= OIFS="$IFS"
[ -n "$1" -a -f "$IFACEDIR/$1" ] || return 1
echo "# resolv.conf from $1"
# Our variable maker works of the fact each resolv.conf per interface
# is separated by blank lines.
# So we remove them when echoing them.
while read line; do
[ -n "$line" ] && echo "$line"
while read -r line; do
IFS="$OIFS"
if [ -n "$line" ]; then
# We need to set IFS here to preserve any whitespace
IFS=''
printf "%s\n" "$line"
fi
done < "$IFACEDIR/$1"
echo
IFS="$OIFS"
}
# Parse resolv.conf's and make variables
@ -101,22 +125,11 @@ echo_resolv()
parse_resolv()
{
local line= ns= ds= search= d= n= newns=
local new=true iface= private=false p=
local new=true iface= private=false p= domain= l= islocal=
echo "DOMAINS="
echo "SEARCH=\"$search_domains\""
# let our subscribers know about global nameservers
for n in $name_servers; do
case "$n" in
127.*|0.0.0.0|255.255.255.255|::1) :;;
*) newns="$newns${newns:+ }$n";;
esac
done
echo "NAMESERVERS=\"$newns\""
echo "LOCALNAMESERVERS="
newns=
while read line; do
while read -r line; do
case "$line" in
"# resolv.conf from "*)
if ${new}; then
@ -129,24 +142,34 @@ parse_resolv()
cd "$IFACEDIR"
private=false
for p in $private_interfaces; do
if [ "$p" = "$iface" ]; then
private=true
break
fi
case "$iface" in
"$p"|"$p":*) private=true; break;;
esac
done
fi
fi
;;
"nameserver "*)
case "${line#* }" in
127.*|0.0.0.0|255.255.255.255|::1)
echo "LOCALNAMESERVERS=\"\$LOCALNAMESERVERS ${line#* }\""
continue
;;
esac
ns="$ns${line#* } "
islocal=false
for l in $local_nameservers; do
case "${line#* }" in
$l)
islocal=true
echo "LOCALNAMESERVERS=\"\$LOCALNAMESERVERS ${line#* }\""
break
;;
esac
done
$islocal || ns="$ns${line#* } "
;;
"domain "*|"search "*)
"domain "*)
if [ -z "$domain" ]; then
domain="${line#* }"
echo "DOMAIN=\"$domain\""
fi
search="${line#* }"
;;
"search "*)
search="${line#* }"
;;
*)
@ -226,40 +249,67 @@ list_resolv()
{
[ -d "$IFACEDIR" ] || return 0
local report=false list= retval=0 cmd="$1"
local report=false list= retval=0 cmd="$1" excl=
shift
case "$IF_EXCLUSIVE" in
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
if [ -d "$EXCLUSIVEDIR" ]; then
cd "$EXCLUSIVEDIR"
for i in *; do
if [ -f "$i" ]; then
list="${i#* }"
break
fi
done
fi
excl=true
;;
*)
excl=false
;;
esac
# If we have an interface ordering list, then use that.
# It works by just using pathname expansion in the interface directory.
if [ -n "$1" ]; then
list="$*"
$force || report=true
else
elif ! $excl; then
cd "$IFACEDIR"
for i in $interface_order; do
[ -e "$i" ] && list="$list $i"
[ -f "$i" ] && list="$list $i"
for ii in "$i":* "$i".*; do
[ -f "$ii" ] && list="$list $ii"
done
done
for i in $dynamic_order; do
if [ -e "$i" -a ! -e "$METRICDIR/"*" $i" ]; then
list="$list $i"
fi
for ii in "$i":* "$i".*; do
if [ -f "$ii" -a ! -e "$METRICDIR/"*" $ii" ]; then
list="$list $ii"
fi
done
done
if [ -d "$METRICDIR" ]; then
cd "$METRICDIR"
for i in *; do
list="$list ${i#* }"
[ -f "$i" ] && list="$list ${i#* }"
done
fi
list="$list *"
fi
cd "$IFACEDIR"
retval=1
for i in $(uniqify $list); do
# Only list interfaces which we really have
if ! [ -e "$i" ]; then
if ! [ -f "$i" ]; then
if $report; then
echo "No resolv.conf for interface $i" >&2
retval=$(($retval + 1))
retval=2
fi
continue
fi
@ -269,23 +319,134 @@ list_resolv()
else
echo_resolv "$i"
fi
[ $? = 0 -a "$retval" = 1 ] && retval=0
done
[ "$cmd" = i -o "$cmd" = "-i" ] && echo
return $retval
}
list_remove() {
local list= e= l= result= found= retval=0
[ -z "$2" ] && return 0
eval list=\"\$$1\"
shift
set -f
for e; do
found=false
for l in $list; do
case "$e" in
$l) found=true;;
esac
$found && break
done
if $found; then
retval=$(($retval + 1))
else
result="$result $e"
fi
done
set +f
echo "${result# *}"
return $retval
}
echo_prepend()
{
echo "# Generated by resolvconf"
if [ -n "$search_domains" ]; then
echo "search $search_domains"
fi
for n in $name_servers; do
echo "nameserver $n"
done
echo
}
echo_append()
{
echo "# Generated by resolvconf"
if [ -n "$search_domains_append" ]; then
echo "search $search_domains_append"
fi
for n in $name_servers_append; do
echo "nameserver $n"
done
echo
}
replace()
{
local r= k= f= v= val= sub=
while read -r keyword value; do
for r in $replace; do
k="${r%%/*}"
r="${r#*/}"
f="${r%%/*}"
r="${r#*/}"
v="${r%%/*}"
case "$keyword" in
$k)
case "$value" in
$f) value="$v";;
esac
;;
esac
done
val=
for sub in $value; do
for r in $replace_sub; do
k="${r%%/*}"
r="${r#*/}"
f="${r%%/*}"
r="${r#*/}"
v="${r%%/*}"
case "$keyword" in
$k)
case "$sub" in
$f) sub="$v";;
esac
;;
esac
done
val="$val${val:+ }$sub"
done
printf "%s %s\n" "$keyword" "$val"
done
}
make_vars()
{
eval "$(list_resolv -l "$@" | parse_resolv)"
local newdomains= d= dn= newns= ns=
# Clear variables
DOMAIN=
DOMAINS=
SEARCH=
NAMESERVERS=
LOCALNAMESERVERS=
if [ -n "$name_servers" -o -n "$search_domains" ]; then
eval "$(echo_prepend | parse_resolv)"
fi
if [ -z "$VFLAG" ]; then
IF_EXCLUSIVE=1
list_resolv -i "$@" >/dev/null || IF_EXCLUSIVE=0
eval "$(list_resolv -l "$@" | replace | parse_resolv)"
fi
if [ -n "$name_servers_append" -o -n "$search_domains_append" ]; then
eval "$(echo_append | parse_resolv)"
fi
# Ensure that we only list each domain once
newdomains=
for d in $DOMAINS; do
dn="${d%%:*}"
list_remove domain_blacklist "$dn" >/dev/null || continue
case " $newdomains" in
*" ${dn}:"*) continue;;
esac
newdomains="$newdomains${newdomains:+ }$dn:"
newns=
for nd in $DOMAINS; do
if [ "$dn" = "${nd%%:*}" ]; then
@ -293,28 +454,50 @@ make_vars()
while [ -n "$ns" ]; do
case ",$newns," in
*,${ns%%,*},*) ;;
*) newns="$newns${newns:+,}${ns%%,*}";;
*) list_remove name_server_blacklist \
"${ns%%,*}" >/dev/null \
&& newns="$newns${newns:+,}${ns%%,*}";;
esac
[ "$ns" = "${ns#*,}" ] && break
ns="${ns#*,}"
done
fi
done
newdomains="$newdomains$newns"
if [ -n "$newns" ]; then
newdomains="$newdomains${newdomains:+ }$dn:$newns"
fi
done
DOMAIN="$(list_remove domain_blacklist $DOMAIN)"
SEARCH="$(uniqify $SEARCH)"
SEARCH="$(list_remove domain_blacklist $SEARCH)"
NAMESERVERS="$(uniqify $NAMESERVERS)"
NAMESERVERS="$(list_remove name_server_blacklist $NAMESERVERS)"
LOCALNAMESERVERS="$(uniqify $LOCALNAMESERVERS)"
LOCALNAMESERVERS="$(list_remove name_server_blacklist $LOCALNAMESERVERS)"
echo "DOMAIN='$DOMAIN'"
echo "SEARCH='$SEARCH'"
echo "NAMESERVERS='$NAMESERVERS'"
echo "LOCALNAMESERVERS='$LOCALNAMESERVERS'"
echo "DOMAINS='$newdomains'"
echo "SEARCH='$(uniqify $SEARCH)'"
echo "NAMESERVERS='$(uniqify $NAMESERVERS)'"
echo "LOCALNAMESERVERS='$(uniqify $LOCALNAMESERVERS)'"
}
force=false
while getopts a:Dd:fhIilm:puv OPT; do
VFLAG=
while getopts a:Dd:fhIilm:puvVx OPT; do
case "$OPT" in
f) force=true;;
h) usage;;
m) IF_METRIC="$OPTARG";;
p) IF_PRIVATE=1;;
V)
VFLAG=1
if [ "$local_nameservers" = \
"127.* 0.0.0.0 255.255.255.255 ::1" ]
then
local_nameservers=
fi
;;
x) IF_EXCLUSIVE=1;;
'?') ;;
*) cmd="$OPT"; iface="$OPTARG";;
esac
@ -343,7 +526,7 @@ if [ "$cmd" = l -o "$cmd" = i ]; then
fi
# Not normally needed, but subscribers should be able to run independently
if [ "$cmd" = v ]; then
if [ "$cmd" = v -o -n "$VFLAG" ]; then
make_vars "$iface"
exit $?
fi
@ -357,6 +540,7 @@ elif [ "$cmd" != u ]; then
[ -n "$cmd" -a "$cmd" != h ] && usage "Unknown option $cmd"
usage
fi
if [ "$cmd" = a ]; then
for x in '/' \\ ' ' '*'; do
case "$iface" in
@ -372,78 +556,198 @@ if [ "$cmd" = a ]; then
[ "$cmd" = a -a -t 0 ] && error_exit "No file given via stdin"
fi
if [ ! -d "$IFACEDIR" ]; then
if [ ! -d "$VARDIR" ]; then
if [ -L "$VARDIR" ]; then
dir="$(readlink "$VARDIR")"
# link maybe relative
cd "${VARDIR%/*}"
if ! mkdir -m 0755 -p "$dir"; then
error_exit "Failed to create needed" \
"directory $dir"
fi
else
if ! mkdir -m 0755 -p "$VARDIR"; then
error_exit "Failed to create needed" \
"directory $VARDIR"
fi
if [ ! -d "$VARDIR" ]; then
if [ -L "$VARDIR" ]; then
dir="$(readlink "$VARDIR")"
# link maybe relative
cd "${VARDIR%/*}"
if ! mkdir -m 0755 -p "$dir"; then
error_exit "Failed to create needed" \
"directory $dir"
fi
else
if ! mkdir -m 0755 -p "$VARDIR"; then
error_exit "Failed to create needed" \
"directory $VARDIR"
fi
fi
mkdir -m 0755 -p "$IFACEDIR" || \
error_exit "Failed to create needed directory $IFACEDIR"
else
# Delete any existing information about the interface
if [ "$cmd" = d ]; then
cd "$IFACEDIR"
for i in $args; do
if [ "$cmd" = d -a ! -e "$i" ]; then
$force && continue
error_exit "No resolv.conf for" \
"interface $i"
fi
rm -f "$i" "$METRICDIR/"*" $i" \
"$PRIVATEDIR/$i" || exit $?
done
fi
fi
if [ "$cmd" = a ]; then
if [ ! -d "$IFACEDIR" ]; then
mkdir -m 0755 -p "$IFACEDIR" || \
error_exit "Failed to create needed directory $IFACEDIR"
if [ "$cmd" = d ]; then
# Provide the same error messages as below
if ! ${force}; then
cd "$IFACEDIR"
for i in $args; do
warn "No resolv.conf for interface $i"
done
fi
${force}
exit $?
fi
fi
# An interface was added, changed, deleted or a general update was called.
# Due to exclusivity we need to ensure that this is an atomic operation.
# Our subscribers *may* need this as well if the init system is sub par.
# As such we spinlock at this point as best we can.
# We don't use flock(1) because it's not widely available and normally resides
# in /usr which we do our very best to operate without.
[ -w "$VARDIR" ] || error_exit "Cannot write to $LOCKDIR"
: ${lock_timeout:=10}
while true; do
if mkdir "$LOCKDIR" 2>/dev/null; then
trap 'rm -rf "$LOCKDIR";' EXIT
trap 'rm -rf "$LOCKDIR"; exit 1' INT QUIT ABRT SEGV ALRM TERM
echo $$ >"$LOCKDIR/pid"
break
fi
pid=$(cat "$LOCKDIR/pid")
if ! kill -0 "$pid"; then
warn "clearing stale lock pid $pid"
rm -rf "$LOCKDIR"
continue
fi
lock_timeout=$(($lock_timeout - 1))
if [ "$lock_timeout" -le 0 ]; then
error_exit "timed out waiting for lock from pid $pid"
fi
sleep 1
done
case "$cmd" in
a)
# Read resolv.conf from stdin
resolv="$(cat)"
changed=false
changedfile=false
# If what we are given matches what we have, then do nothing
if [ -e "$IFACEDIR/$iface" ]; then
if [ "$(echo "$resolv")" = \
if [ "$(echo "$resolv")" != \
"$(cat "$IFACEDIR/$iface")" ]
then
exit 0
changed=true
changedfile=true
fi
rm "$IFACEDIR/$iface"
else
changed=true
changedfile=true
fi
echo "$resolv" >"$IFACEDIR/$iface" || exit $?
# Set metric and private before creating the interface resolv.conf file
# to ensure that it will have the correct flags
[ ! -d "$METRICDIR" ] && mkdir "$METRICDIR"
rm -f "$METRICDIR/"*" $iface"
oldmetric="$METRICDIR/"*" $iface"
newmetric=
if [ -n "$IF_METRIC" ]; then
# Pad metric to 6 characters, so 5 is less than 10
while [ ${#IF_METRIC} -le 6 ]; do
IF_METRIC="0$IF_METRIC"
done
echo " " >"$METRICDIR/$IF_METRIC $iface"
newmetric="$METRICDIR/$IF_METRIC $iface"
fi
rm -f "$METRICDIR/"*" $iface"
[ "$oldmetric" != "$newmetric" -a \
"$oldmetric" != "$METRICDIR/* $iface" ] &&
changed=true
[ -n "$newmetric" ] && echo " " >"$newmetric"
case "$IF_PRIVATE" in
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
if [ ! -d "$PRIVATEDIR" ]; then
[ -e "$PRIVATEDIR" ] && rm "$PRIVATEDIR"
mkdir "$PRIVATEDIR"
fi
[ -e "$PRIVATEDIR/$iface" ] || changed=true
[ -d "$PRIVATEDIR" ] && echo " " >"$PRIVATEDIR/$iface"
;;
*)
if [ -e "$PRIVATEDIR/$iface" ]; then
rm -f "$PRIVATEDIR/$iface"
changed=true
fi
;;
esac
fi
oldexcl=
for x in "$EXCLUSIVEDIR/"*" $iface"; do
if [ -f "$x" ]; then
oldexcl="$x"
break
fi
done
case "$IF_EXCLUSIVE" in
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
if [ ! -d "$EXCLUSIVEDIR" ]; then
[ -e "$EXCLUSIVEDIR" ] && rm "$EXCLUSIVEDIR"
mkdir "$EXCLUSIVEDIR"
fi
cd "$EXCLUSIVEDIR"
for x in *; do
[ -f "$x" ] && break
done
if [ "${x#* }" != "$iface" ]; then
if [ "$x" = "${x% *}" ]; then
x=10000000
else
x="${x% *}"
fi
if [ "$x" = "0000000" ]; then
warn "exclusive underflow"
else
x=$(($x - 1))
fi
if [ -d "$EXCLUSIVEDIR" ]; then
echo " " >"$EXCLUSIVEDIR/$x $iface"
fi
changed=true
fi
;;
*)
if [ -f "$oldexcl" ]; then
rm -f "$oldexcl"
changed=true
fi
;;
esac
if $changedfile; then
printf "%s\n" "$resolv" >"$IFACEDIR/$iface" || exit $?
elif ! $changed; then
exit 0
fi
unset changed changedfile oldmetric newmetric x oldexcl
;;
d)
# Delete any existing information about the interface
cd "$IFACEDIR"
changed=false
for i in $args; do
if [ -e "$i" ]; then
changed=true
elif ! ${force}; then
warn "No resolv.conf for interface $i"
fi
rm -f "$i" "$METRICDIR/"*" $i" \
"$PRIVATEDIR/$i" \
"$EXCLUSIVEDIR/"*" $i" || exit $?
done
if ! ${changed}; then
# Set the return code based on the forced flag
${force}
exit $?
fi
unset changed i
;;
esac
case "${resolvconf:-YES}" in
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) ;;
*) exit 0;;
esac
eval "$(make_vars)"
export RESOLVCONF DOMAINS SEARCH NAMESERVERS LOCALNAMESERVERS
@ -451,6 +755,11 @@ export RESOLVCONF DOMAINS SEARCH NAMESERVERS LOCALNAMESERVERS
retval=0
for script in "$LIBEXECDIR"/*; do
if [ -f "$script" ]; then
eval script_enabled="\$${script##*/}"
case "${script_enabled:-YES}" in
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) ;;
*) continue;;
esac
if [ -x "$script" ]; then
"$script" "$cmd" "$iface"
else

13
unbound.in
View File

@ -1,5 +1,5 @@
#!/bin/sh
# Copyright (c) 2009-2011 Roy Marples
# Copyright (c) 2009-2014 Roy Marples
# All rights reserved
# unbound subscriber for resolvconf
@ -26,10 +26,12 @@
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
unbound_insecure=
[ -f "@SYSCONFDIR@"/resolvconf.conf ] || exit 0
. "@SYSCONFDIR@/resolvconf.conf" || exit 1
[ -z "$unbound_conf" ] && exit 0
[ -z "$RESOLVCONF" ] && eval "$(@PREFIX@/sbin/resolvconf -v)"
[ -z "$RESOLVCONF" ] && eval "$(@SBINDIR@/resolvconf -v)"
NL="
"
@ -41,6 +43,11 @@ newconf="# Generated by resolvconf$NL"
for d in $DOMAINS; do
dn="${d%%:*}"
ns="${d#*:}"
case "$unbound_insecure" in
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
newconf="$newconf${NL}domain-insecure: \"$dn\""
;;
esac
newconf="$newconf${NL}forward-zone:$NL name: \"$dn\"$NL"
while [ -n "$ns" ]; do
newconf="$newconf forward-addr: ${ns%%,*}$NL"
@ -60,7 +67,7 @@ fi
if type config_mkdirs >/dev/null 2>&1; then
config_mkdirs "$unbound_conf"
else
@PREFIX@/sbin/resolvconf -D "$unbound_conf"
@SBINDIR@/resolvconf -D "$unbound_conf"
fi
if [ ! -f "$unbound_conf" ] || \