TIMEVALIDFILE="/var/state/dnsmasqsec"
BASEDHCPSTAMPFILE="/var/run/dnsmasq"
RFC6761FILE="/usr/share/dnsmasq/rfc6761.conf"
+DHCPSCRIPT="/usr/lib/dnsmasq/dhcp-script.sh"
DNSMASQ_DHCP_VER=4
logger -t dnsmasq "$@"
}
+has_handler() {
+ local file
+
+ for file in /etc/hotplug.d/dhcp/* /etc/hotplug.d/tftp/* /etc/hotplug.d/neigh/*; do
+ [ -f "$file" ] && return 0
+ done
+
+ return 1
+}
+
append_bool() {
local section="$1"
local option="$2"
local value="$3"
+ local default="$4"
local _loctmp
- config_get_bool _loctmp "$section" "$option" 0
+ [ -z "$default" ] && default="0"
+ config_get_bool _loctmp "$section" "$option" "$default"
[ $_loctmp -gt 0 ] && xappend "$value"
}
xappend "--pxe-service=$1"
}
+append_interface_name() {
+ xappend "--interface-name=$1,$2"
+}
+
filter_dnsmasq() {
local cfg="$1" func="$2" match_cfg="$3" found_cfg
dhcp_host_add() {
local cfg="$1"
- local hosttag nametime addrs
+ local hosttag nametime addrs duids
config_get_bool force "$cfg" force 0
if [ "$mode" -gt 1 ] ; then
if [ "$mode" -gt 2 ] ; then
if [ "$mode" -gt 3 ] ; then
- xappend "--interface-name=$ifdashname.$routername.$DOMAIN,$ifname"
+ append_interface_name "$ifdashname.$routername.$DOMAIN" "$ifname"
fi
- xappend "--interface-name=$routername.$DOMAIN,$ifname"
+ append_interface_name "$routername.$DOMAIN" "$ifname"
fi
# All IP addresses discovered by dnsmasq will be labeled (except fe80::)
- xappend "--interface-name=$routername,$ifname"
+ append_interface_name "$routername" "$ifname"
else
# This uses a static host file entry for only limited addresses.
config_get ra "$cfg" ra
config_get ra_management "$cfg" ra_management
config_get ra_preference "$cfg" ra_preference
+ config_get dns "$cfg" dns
+
+ config_list_foreach "$cfg" "interface_name" append_interface_name "$ifname"
# Put the router host name on this DHCP served interface address(es)
dhcp_this_host_add "$net" "$ifname" "$ADD_LOCAL_FQDN"
xappend "--dhcp-range=$nettag$dhcp6range,constructor:$ifname,slaac,ra-names,$leasetime"
;;
esac
+
+ if [ -n "$dns" ]; then
+ dnss=""
+ for d in $dns; do append dnss "[$d]" ","; done
+ else
+ dnss="[::]"
+ fi
+
+ dhcp_option_append "option6:dns-server,$dnss" "$networkid"
fi
dhcp_option_add "$cfg" "$networkid"
}
+dhcp_option_append() {
+ local option="$1"
+ local networkid="$2"
+ local force="$3"
+
+ xappend "--dhcp-option${force:+-force}=${networkid:+$networkid,}$option"
+}
+
dhcp_option_add() {
# NOTE: dnsmasq has explicit "option6:" prefix for DHCPv6 so no collisions
local cfg="$1"
[ "$force" = "0" ] && force=
- config_get dhcp_option "$cfg" dhcp_option
- for o in $dhcp_option; do
- xappend "--dhcp-option${force:+-force}=${networkid:+$networkid,}$o"
- done
+ local list_len
+ config_get list_len "$cfg" dhcp_option_LENGTH
+
+ if [ -n "$list_len" ]; then
+ config_list_foreach "$cfg" dhcp_option dhcp_option_append "$networkid" "$force"
+ else
+ config_get dhcp_option "$cfg" dhcp_option
+
+ [ -n "$dhcp_option" ] && echo "Warning: the 'option dhcp_option' syntax is deprecated, use 'list dhcp_option'" >&2
+ local option
+ for option in $dhcp_option; do
+ dhcp_option_append "$option" "$networkid" "$force"
+ done
+ fi
}
dhcp_domain_add() {
if [ -z "$interface" ]; then
xappend "--dhcp-relay=$local_addr,$server_addr"
else
- xappend "--dhcp-relay=$local_addr,$server_addr,$interface"
+ network_get_device ifname "$interface" || return
+ xappend "--dhcp-relay=$local_addr,$server_addr,$ifname"
fi
}
+dnsmasq_ismain()
+{
+ local cfg="$1"
+ local port notinterfaces
+
+ config_get port "$cfg" port "53"
+ [ $port = "53" ] || return 1
+
+ config_get notinterfaces "$cfg" notinterface ""
+ [ -n $notinterfaces ] && list_contains $notinterfaces "loopback" || return 1
+
+ # dnsmasq instance is designated to listen on 127.0.0.1#53.
+ return 0
+}
+
dnsmasq_start()
{
- local cfg="$1" disabled resolvfile
+ local cfg="$1" disabled resolvfile user_dhcpscript
config_get_bool disabled "$cfg" disabled 0
[ "$disabled" -gt 0 ] && return 0
if [ -x /usr/sbin/odhcpd -a -x /etc/init.d/odhcpd ] ; then
local odhcpd_is_main odhcpd_is_enabled
- config_get odhcpd_is_main odhcpd maindhcp
+ config_get odhcpd_is_main odhcpd maindhcp 0
/etc/init.d/odhcpd enabled && odhcpd_is_enabled=1 || odhcpd_is_enabled=0
DNSMASQ_DHCP_VER=4
fi
+ # Allow DHCP/DHCPv6 to be handled by ISC DHCPD
+ if [ -x /usr/sbin/dhcpd ] ; then
+ if [ -x /etc/init.d/dhcpd ] ; then
+ /etc/init.d/dhcpd enabled && DNSMASQ_DHCP_VER=0
+ fi
+ if [ -x /etc/init.d/dhcpd6 -a "$DNSMASQ_DHCP_VER" -gt 0 ] ; then
+ /etc/init.d/dhcpd6 enabled && DNSMASQ_DHCP_VER=4
+ fi
+ fi
append_bool "$cfg" authoritative "--dhcp-authoritative"
append_bool "$cfg" nodaemon "--no-daemon"
append_bool "$cfg" dbus "--enable-dbus"
append_bool "$cfg" expandhosts "--expand-hosts"
config_get tftp_root "$cfg" "tftp_root"
- [ -d "$tftp_root" ] && append_bool "$cfg" enable_tftp "--enable-tftp"
+ [ -n "$tftp_root" ] && mkdir -p "$tftp_root" && append_bool "$cfg" enable_tftp "--enable-tftp"
append_bool "$cfg" tftp_no_fail "--tftp-no-fail"
- append_bool "$cfg" nonwildcard "--bind-dynamic"
+ append_bool "$cfg" nonwildcard "--bind-dynamic" 1
append_bool "$cfg" fqdn "--dhcp-fqdn"
append_bool "$cfg" proxydnssec "--proxy-dnssec"
append_bool "$cfg" localservice "--local-service"
append_bool "$cfg" noping "--no-ping"
append_parm "$cfg" logfacility "--log-facility"
- append_parm "$cfg" dhcpscript "--dhcp-script"
+
append_parm "$cfg" cachesize "--cache-size"
append_parm "$cfg" dnsforwardmax "--dns-forward-max"
append_parm "$cfg" port "--port"
config_get_bool readethers "$cfg" readethers
[ "$readethers" = "1" -a \! -e "/etc/ethers" ] && touch /etc/ethers
- config_get dhcpscript $cfg dhcpscript
+ config_get user_dhcpscript $cfg dhcpscript
+ if has_handler || [ -n "$user_dhcpscript" ]; then
+ xappend "--dhcp-script=$DHCPSCRIPT"
+ fi
config_get leasefile $cfg leasefile "/tmp/dhcp.leases"
[ -n "$leasefile" -a \! -e "$leasefile" ] && touch "$leasefile"
config_get_bool cachelocal "$cfg" cachelocal 1
- config_get_bool noresolv "$cfg" noresolv 0
- if [ "$noresolv" != "1" ]; then
- config_get resolvfile "$cfg" resolvfile "/tmp/resolv.conf.auto"
- # So jail doesn't complain if file missing
- [ -n "$resolvfile" -a \! -e "$resolvfile" ] && touch "$resolvfile"
- fi
-
- [ -n "$resolvfile" ] && xappend "--resolv-file=$resolvfile"
+ config_get resolvfile "$cfg" resolvfile "/tmp/resolv.conf.auto"
+ xappend "--resolv-file=$resolvfile"
+ # So jail doesn't complain if file missing
+ [ \! -e "$resolvfile" ] && touch "$resolvfile"
config_get hostsfile "$cfg" dhcphostsfile
[ -e "$hostsfile" ] && xappend "--dhcp-hostsfile=$hostsfile"
echo >> $CONFIGFILE_TMP
mv -f $CONFIGFILE_TMP $CONFIGFILE
- [ "$resolvfile" = "/tmp/resolv.conf.auto" ] && {
- rm -f /tmp/resolv.conf
- [ $ADD_LOCAL_DOMAIN -eq 1 ] && [ -n "$DOMAIN" ] && {
- echo "search $DOMAIN" >> /tmp/resolv.conf
- }
- DNS_SERVERS="$DNS_SERVERS 127.0.0.1"
- for DNS_SERVER in $DNS_SERVERS ; do
- echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf
- done
- }
procd_open_instance $cfg
procd_set_param command $PROG -C $CONFIGFILE -k -x /var/run/dnsmasq/dnsmasq."${cfg}".pid
procd_set_param file $CONFIGFILE
+ [ -n "$user_dhcpscript" ] && procd_set_param env USER_DHCPSCRIPT="$user_dhcpscript"
procd_set_param respawn
local dnsmasqconffile="/etc/dnsmasq.${cfg}.conf"
fi
procd_add_jail dnsmasq ubus log
- procd_add_jail_mount $CONFIGFILE $TRUSTANCHORSFILE $HOSTFILE $RFC6761FILE /etc/passwd /etc/group /etc/TZ /dev/null /dev/urandom $dnsmasqconffile $dnsmasqconfdir $resolvfile $dhcpscript /etc/hosts /etc/ethers $EXTRA_MOUNT
+ procd_add_jail_mount $CONFIGFILE $TRUSTANCHORSFILE $HOSTFILE $RFC6761FILE /etc/passwd /etc/group /etc/TZ /dev/null /dev/urandom $dnsmasqconffile $dnsmasqconfdir $resolvfile $user_dhcpscript /etc/hosts /etc/ethers /sbin/hotplug-call $EXTRA_MOUNT $DHCPSCRIPT
procd_add_jail_mount_rw /var/run/dnsmasq/ $leasefile
procd_close_instance
+
+
+ # write /tmp/resolve.conf only for main instance
+ dnsmasq_ismain $cfg && {
+ rm -f /tmp/resolv.conf
+ [ $ADD_LOCAL_DOMAIN -eq 1 ] && [ -n "$DOMAIN" ] && {
+ echo "search $DOMAIN" >> /tmp/resolv.conf
+ }
+ DNS_SERVERS="$DNS_SERVERS 127.0.0.1"
+ for DNS_SERVER in $DNS_SERVERS ; do
+ echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf
+ done
+ }
}
dnsmasq_stop()
{
local cfg="$1"
- config_get resolvfile "$cfg" "resolvfile"
-
#relink /tmp/resolve.conf only for main instance
- [ "$resolvfile" = "/tmp/resolv.conf.auto" ] && {
- [ -f /tmp/resolv.conf ] && {
- rm -f /tmp/resolv.conf
- ln -s "$resolvfile" /tmp/resolv.conf
- }
+ dnsmasq_ismain $cfg && {
+ [ -f /tmp/resolv.conf ] && rm -f /tmp/resolv.conf
+ ln -s /tmp/resolv.conf.auto /tmp/resolv.conf
}
rm -f ${BASEDHCPSTAMPFILE}.${cfg}.*.dhcp