From: Alexandru Ardelean <[email protected]> The problem is that interfaces are specified at start as command line arguments, making them unchange-able via reload.
That means, we have to move (since lldpd allows this) the interfaces-match-pattern option to be in a config file and reload the configuration. It's either that, or do a 'restart'. Since we're generating the lldpd.conf file, we'll have to move the 'sysconfdir' of lldpd to /tmp, where the files will get written ; this will prevent any unncessary flash writes. Signed-off-by: Alexandru Ardelean <[email protected]> --- package/network/services/lldpd/Makefile | 1 + package/network/services/lldpd/files/lldpd.init | 53 +++++++++++++++++-------- 2 files changed, 37 insertions(+), 17 deletions(-) diff --git a/package/network/services/lldpd/Makefile b/package/network/services/lldpd/Makefile index 81e4a8f..5f413cf 100644 --- a/package/network/services/lldpd/Makefile +++ b/package/network/services/lldpd/Makefile @@ -94,6 +94,7 @@ CONFIGURE_ARGS += \ --with-embedded-libevent=no \ --disable-hardening \ --without-xml \ + --sysconfdir=/tmp \ $(if $(CONFIG_LLDPD_WITH_CDP),,--disable-cdp) \ $(if $(CONFIG_LLDPD_WITH_FDP),,--disable-fdp) \ $(if $(CONFIG_LLDPD_WITH_EDP),,--disable-edp) \ diff --git a/package/network/services/lldpd/files/lldpd.init b/package/network/services/lldpd/files/lldpd.init index 6965189..064bac1 100644 --- a/package/network/services/lldpd/files/lldpd.init +++ b/package/network/services/lldpd/files/lldpd.init @@ -7,6 +7,8 @@ STOP=01 USE_PROCD=1 LLDPCLI=/usr/sbin/lldpcli LLDPSOCKET=/var/run/lldpd.socket +LLDPD_CONF=/tmp/lldpd.conf +LLDPD_CONFS_DIR=/tmp/lldpd.d find_release_info() { @@ -17,16 +19,43 @@ find_release_info() echo "${DISTRIB_DESCRIPTION:-Unknown OpenWrt release} @ $(cat /proc/sys/kernel/hostname)" } -start_service() { +write_lldpd_conf() +{ . /lib/functions/network.sh + local lldp_description + + config_load 'lldpd' + config_get lldp_description 'config' 'lldp_description' "$(find_release_info)" + + local ifaces + config_get ifaces 'config' 'interface' + + local iface ifnames="" + for iface in $ifaces; do + local ifname="" + if network_get_device ifname "$iface" || [ -e "/sys/class/net/$iface" ]; then + append ifnames "${ifname:-$iface}" "," + fi + done + + # Clear out the config file first + echo -n > "$LLDPD_CONF" + [ -n "$ifnames" ] && echo "configure system interface pattern" "$ifnames" >> "$LLDPD_CONF" + [ -n "$lldp_description" ] && echo "configure system description" "\"$lldp_description\"" >> "$LLDPD_CONF" + + # Since lldpd's sysconfdir is /tmp, we'll symlink /etc/lldpd.d to /tmp/$LLDPD_CONFS_DIR + [ -e $LLDPD_CONFS_DIR ] || ln -s /etc/lldpd.d $LLDPD_CONFS_DIR +} + +start_service() { + local enable_cdp local enable_fdp local enable_sonmp local enable_edp local lldp_class local lldp_location - local lldp_description local readonly_mode config_load 'lldpd' @@ -36,35 +65,24 @@ start_service() { config_get_bool enable_edp 'config' 'enable_edp' 0 config_get lldp_class 'config' 'lldp_class' config_get lldp_location 'config' 'lldp_location' - config_get lldp_description 'config' 'lldp_description' "$(find_release_info)" config_get_bool readonly_mode 'config' 'readonly_mode' 0 - local ifaces - config_get ifaces 'config' 'interface' - - local iface ifnames="" - for iface in $ifaces; do - local ifname="" - if network_get_device ifname "$iface" || [ -e "/sys/class/net/$iface" ]; then - append ifnames "${ifname:-$iface}" "," - fi - done - mkdir -p /var/run/lldp chown lldp:lldp /var/run/lldp + # When lldpd starts, it also loads up what we write in this config file + write_lldpd_conf + procd_open_instance procd_set_param command /usr/sbin/lldpd procd_append_param command -d # don't daemonize, procd will handle that for us - [ -n "$ifnames" ] && procd_append_param command -I "$ifnames" [ $enable_cdp -gt 0 ] && procd_append_param command '-c' [ $enable_fdp -gt 0 ] && procd_append_param command '-f' [ $enable_sonmp -gt 0 ] && procd_append_param command '-s' [ $enable_edp -gt 0 ] && procd_append_param command '-e' [ $readonly_mode -gt 0 ] && procd_append_param command '-r' [ -n "$lldp_class" ] && procd_append_param command -M "$lldp_class" - [ -n "$lldp_description" ] && procd_append_param command -S "$lldp_description" # set auto respawn behavior procd_set_param respawn @@ -83,7 +101,8 @@ reload_service() { # Custom TLVs are special and should be # reloaded from config during lldpd reload $LLDPCLI -u $LLDPSOCKET unconfigure lldp custom-tlv &> /dev/null - $LLDPCLI -u $LLDPSOCKET -c /etc/lldpd.conf -c /etc/lldpd.d &> /dev/null + write_lldpd_conf + $LLDPCLI -u $LLDPSOCKET -c $LLDPD_CONF -c $LLDPD_CONFS_DIR &> /dev/null # Broadcast update over the wire $LLDPCLI -u $LLDPSOCKET update &> /dev/null return 0 -- 2.1.4 _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
