Network block device server allows to export a block device from router to remote host. This is particularly useful if no network filesystem server is feasible or direct access to a block device is needed.
It's been tested for nearly a month on ar71xx (TL-WR842ND) and proved to be very stable and efficient solution. The package comes with init.d script and conf.d file allowing to configure most nbd-server options using standard uci interface. Signed-off-by: Marcin Jurkowski <[email protected]> --- Index: net/nbd/Makefile =================================================================== --- net/nbd/Makefile (revision 35821) +++ net/nbd/Makefile (working copy) @@ -36,12 +36,24 @@ This package contains the network block device client. endef +define Package/nbd-server + SECTION:=net + CATEGORY:=Network + TITLE:=Network Block Device Server + URL:=http://nbd.sourceforge.net + DEPENDS:=+glib2 +endef + +define Package/nbd-server/description + This package contains the network block device server. +endef + CONFIGURE_ARGS+= \ --disable-glibtest define Build/Compile $(MAKE) -C $(PKG_BUILD_DIR) \ - nbd-client + nbd-client nbd-server endef define Package/nbd/install @@ -50,3 +62,20 @@ endef $(eval $(call BuildPackage,nbd)) + +define Package/nbd-server/install + $(INSTALL_DIR) $(1)/usr/bin + $(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/nbd-server $(1)/usr/bin/ + $(INSTALL_DIR) $(1)/etc/config + $(INSTALL_DATA) ./files/nbd-server.conf $(1)/etc/config/nbd-server + $(INSTALL_DIR) $(1)/etc/init.d + $(INSTALL_BIN) ./files/nbd-server.init $(1)/etc/init.d/nbd-server +endef + +define Package/nbd-server/conffiles +/etc/config/nbd-server +/etc/nbd-server/config +/etc/nbd-server/allow +endef + +$(eval $(call BuildPackage,nbd-server)) Index: net/nbd/files/nbd-server.conf =================================================================== --- net/nbd/files/nbd-server.conf (revision 0) +++ net/nbd/files/nbd-server.conf (working copy) @@ -0,0 +1,31 @@ +config nbd-server + option enabled 0 +# option port 10809 +# option user root +# option group root +# option allowlist 0 +# option includedir '/etc/nbd-server.d' +# option listenaddr '0.0.0.0' +# option oldstyle 0 + +config share usb_sda1 + option filename '/dev/sda1' +# option authfile '/etc/nbd-server/allow' +# option timeout 0 +# option flush 0 +# option fua 0 +# option rotational 0 +# option sync 0 +# option discard 0 +# option maxconnections 10 +# option filesize 1000000 +# option multifile 0 +# option copyonwrite 0 +# option sparse_cow 1 +# option readonly 0 +# option prerun '/bin/true' +# option postrun '/bin/true' +# option virtstyle 'ipliteral' +# option oldstyle_port 12345 +# option oldstyle_listenaddr '0.0.0.0' + Index: net/nbd/files/nbd-server.init =================================================================== --- net/nbd/files/nbd-server.init (revision 0) +++ net/nbd/files/nbd-server.init (working copy) @@ -0,0 +1,108 @@ +#!/bin/sh /etc/rc.common +# Copyright (C) 2012 OpenWrt.org + +START=60 +SERVICE_USE_PID=1 + +CONFIGFILE="/var/etc/nbd-server.conf" + + +append_plain() { + echo "$1" >> $CONFIGFILE +} + +append_val_str() { + local resultname="$1" + local cfg="$2" + local uciname="${3:-$1}" + local value= + + config_get value "$cfg" "$uciname" + + if [ -z "$value" ]; then + return + fi + append_plain "$resultname = $value" +} + +append_val_bool() { + local resultname="$1" + local cfg="$2" + local uciname="${3:-$1}" + local value= + + config_get_bool value "$cfg" "$uciname" + if [ -z "$value" ]; then + return + fi + + [ $value == 1 ] && value="true" || value="false" + append_plain "$resultname = $value" +} + +config_handle_generic() { + local cfg="$1" + + append_plain "[generic]" + append_val_str user "$cfg" + append_val_str group "$cfg" + append_val_str port "$cfg" + append_val_str listenaddr "$cfg" + append_val_bool allowlist "$cfg" + append_val_str includedir "$cfg" + append_val_bool oldstyle "$cfg" + + config_get_bool SERVICE_ENABLED "$cfg" enabled 0 +} + +config_handle_share() { + local cfg="$1" + + append_plain + append_plain "[$cfg]" + append_val_str exportname "$cfg" filename + append_val_str timeout "$cfg" + append_val_str maxconnections "$cfg" + append_val_str authfile "$cfg" + append_val_str filesize "$cfg" + append_val_str readonly "$cfg" + append_val_str multifile "$cfg" + append_val_str copyonwrite "$cfg" + append_val_bool sparse_cow "$cfg" + append_val_bool flush "$cfg" + append_val_bool fua "$cfg" + append_val_bool rotational "$cfg" + append_val_bool sync "$cfg" + append_val_bool discard "$cfg" + append_val_str prerun "$cfg" + append_val_str postrun "$cfg" + append_val_str virtstyle "$cfg" + append_val_str port "$cfg" oldstyle_port + append_val_str listenaddr "$cfg" oldstyle_listenaddr +} + +config_read() { + + mkdir -p $(dirname $CONFIGFILE) + echo -n > $CONFIGFILE + + config_load nbd-server + config_foreach config_handle_generic nbd-server + config_foreach config_handle_share share +} + +start() { + config_read + + if [ "$SERVICE_ENABLED" = "1" ]; then + service_start /usr/bin/nbd-server \ + --pid-file /var/run/nbd-server.pid \ + --config-file=$CONFIGFILE + fi +} + +stop() { + service_stop /usr/bin/nbd-server +} + + _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/mailman/listinfo/openwrt-devel
