base-files: - use add_dns() and remove_dns() for when changing resolv.conf.auto for...

SVN-Revision: 21638

diff --git a/package/base-files/Makefile b/package/base-files/Makefile
index 8eca0d5ddad9d1e0dc2ba98484a03e9897218f23..90c804bbe24caaa2a22cc59cd34b8f023052d3d7 100644 (file)
--- a/package/base-files/Makefile
+++ b/package/base-files/Makefile
@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=base-files
-PKG_RELEASE:=46
+PKG_RELEASE:=47
 
 PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/
 

diff --git a/package/base-files/files/lib/network/config.sh b/package/base-files/files/lib/network/config.sh
index 32170bb274a3f79c20f2c55393abdd2f3ae8a84c..1bb3a46ecd133f428138051d39854a264d287c2c 100755 (executable)
--- a/package/base-files/files/lib/network/config.sh
+++ b/package/base-files/files/lib/network/config.sh
@@ -70,6 +70,16 @@ add_vlan() {
 add_dns() {
        local cfg="$1"; shift
 
+       remove_dns "$cfg"
+
+       # We may be called by pppd's ip-up which has a nonstandard umask set.
+       # Create an empty file here and force its permission to 0644, otherwise
+       # dnsmasq will not be able to re-read the resolv.conf.auto .
+       [ ! -f /tmp/resolv.conf.auto ] && {
+               touch /tmp/resolv.conf.auto
+               chmod 0644 /tmp/resolv.conf.auto
+       }
+
        local dns
        local add
        for dns in "$@"; do
@@ -79,20 +89,27 @@ add_dns() {
                }
        done
 
-       uci_set_state network "$cfg" dns "$add"
+       [ -n "$cfg" ] && {
+               uci_set_state network "$cfg" dns "$add"
+               uci_set_state network "$cfg" resolv_dns "$add"
+       }
 }
 
 # remove dns entries of the given iface
 remove_dns() {
        local cfg="$1"
 
-       local dns
-       config_get dns "$cfg" dns
-       for dns in $dns; do
-               sed -i -e "/^nameserver $dns$/d" /tmp/resolv.conf.auto
-       done
+       [ -n "$cfg" ] && {
+               [ -f /tmp/resolv.conf.auto ] && {
+                       local dns=$(uci_get_state network "$cfg" resolv_dns)
+                       for dns in $dns; do
+                               sed -i -e "/^nameserver $dns$/d" /tmp/resolv.conf.auto
+                       done
+               }
 
-       uci_revert_state network "$cfg" dns
+               uci_revert_state network "$cfg" dns
+               uci_revert_state network "$cfg" resolv_dns
+       }
 }
 
 # sort the device list, drop duplicates
@@ -212,13 +229,7 @@ setup_interface_static() {
        [ -z "$ip6addr" ] || $DEBUG ifconfig "$iface" add "$ip6addr"
        [ -z "$gateway" ] || $DEBUG route add default gw "$gateway" dev "$iface"
        [ -z "$ip6gw" ] || $DEBUG route -A inet6 add default gw "$ip6gw" dev "$iface"
-       [ -z "$dns" ] || {
-               for ns in $dns; do
-                       grep "$ns" /tmp/resolv.conf.auto 2>/dev/null >/dev/null || {
-                               echo "nameserver $ns" >> /tmp/resolv.conf.auto
-                       }
-               done
-       }
+       [ -z "$dns" ] || add_dns "$config" $dns
 
        config_get type "$config" TYPE
        [ "$type" = "alias" ] && return 0
@@ -363,12 +374,14 @@ setup_interface() {
 stop_interface_dhcp() {
        local config="$1"
 
-       local iface
+       local ifname
        config_get ifname "$config" ifname
 
        local lock="/var/lock/dhcp-${ifname}"
        [ -f "$lock" ] && lock -u "$lock"
 
+       remove_dns "$config"
+
        local pidfile="/var/run/dhcp-${ifname}.pid"
        local pid="$(cat "$pidfile" 2>/dev/null)"
        [ -d "/proc/$pid" ] && {

diff --git a/package/base-files/files/sbin/ifdown b/package/base-files/files/sbin/ifdown
index 7c6a5b7061cba9f1d7b6210b8babc110314588e1..92cdfd2b02460ebce247d44ea6b8bc6936714537 100755 (executable)
--- a/package/base-files/files/sbin/ifdown
+++ b/package/base-files/files/sbin/ifdown
@@ -40,6 +40,9 @@ done
 config_get iftype "$cfg" type
 [ "bridge" = "$iftype" ] && brctl delbr "$ifname" >/dev/null 2>/dev/null
 
+# remove the interface's dns entries
+remove_dns "$cfg"
+
 # remove the interface's network state
 uci_revert_state network "$1"
 

diff --git a/package/base-files/files/usr/share/udhcpc/default.script b/package/base-files/files/usr/share/udhcpc/default.script
index ceabf4bf3a3074de78a8ef6fe09b93b6d6f7ff9a..39527778ad1973cd1206ead85fd8e404bcf2f268 100755 (executable)
--- a/package/base-files/files/usr/share/udhcpc/default.script
+++ b/package/base-files/files/usr/share/udhcpc/default.script
@@ -139,21 +139,21 @@ setup_interface () {
        }
 
        # DNS
-       config_get old_dns "$ifc" dns
+       old_dns=$(uci_get_state network "$ifc" dns)
+       old_domain=$(uci_get_state network "$ifc" dnsdomain)
        user_dns=$(uci_get "network.$ifc.dns")
        [ -n "$user_dns" ] && dns="$user_dns"
 
-       [ -n "$dns" ] && [ ! -s "${RESOLV_CONF}" -o "$dns" != "$old_dns" ] && {
+       [ -n "$dns" ] && [ "$dns" != "$old_dns" -o -n "$user_dns" ] && {
                echo "udhcpc: setting dns servers: $dns"
-               echo -n > "${RESOLV_CONF}.tmp"
-               for i in $dns ; do
-                       echo "nameserver $i" >> "${RESOLV_CONF}.tmp"
-               done
-               ${domain:+echo search $domain} >> "${RESOLV_CONF}.tmp"
-               mv "${RESOLV_CONF}.tmp" "$RESOLV_CONF"
-
-               change_state network "$ifc" dnsdomain "$domain"
-               change_state network "$ifc" dns "$dns"
+               add_dns "$ifc" $dns
+
+               [ -n "$domain" ] && [ "$domain" != "$old_domain" ] && {
+                       echo "udhcpc: setting dns domain: $domain"
+                       sed -i -e "${old_domain:+/^search $old_domain$/d; }/^search $domain$/d" "${RESOLV_CONF}"
+                       echo "search $domain" >> "${RESOLV_CONF}"
+                       change_state network "$ifc" dnsdomain "$domain"
+               }
        }
 
        [ -n "$ifc" ] || return