diff options
Diffstat (limited to 'contrib/openresolv/dnsmasq.in')
| -rw-r--r-- | contrib/openresolv/dnsmasq.in | 143 |
1 files changed, 109 insertions, 34 deletions
diff --git a/contrib/openresolv/dnsmasq.in b/contrib/openresolv/dnsmasq.in index 178f4dd..1b6ad16 100644 --- a/contrib/openresolv/dnsmasq.in +++ b/contrib/openresolv/dnsmasq.in @@ -1,5 +1,5 @@ #!/bin/sh -# Copyright (c) 2007-2009 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 @@ -69,30 +67,97 @@ 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" "$dnsmasq_resolv" +else + @SBINDIR@/resolvconf -D "$dnsmasq_conf" "$dnsmasq_resolv" +fi + changed=false if [ -n "$dnsmasq_conf" ]; then if [ ! -f "$dnsmasq_conf" ] || \ @@ -103,14 +168,13 @@ if [ -n "$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 @@ -119,9 +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 |
