diff --git a/alfred/Makefile b/alfred/Makefile index db9c71f..b088e45 100644 --- a/alfred/Makefile +++ b/alfred/Makefile @@ -12,7 +12,7 @@ include $(TOPDIR)/rules.mk # PKG_NAME:=alfred PKG_VERSION:=2013.3.0 -PKG_RELEASE:=0 +PKG_RELEASE:=4 PKG_MD5SUM:=018ef6262cdd11e900af31d71a864b13 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz @@ -74,6 +74,8 @@ define Package/alfred/install $(INSTALL_BIN) ./files/alfred.init $(1)/etc/init.d/alfred $(INSTALL_DIR) $(1)/etc/config $(INSTALL_DATA) ./files/alfred.config $(1)/etc/config/alfred + $(INSTALL_DIR) $(1)/etc/alfred + $(INSTALL_BIN) ./files/bat-hosts.lua $(1)/etc/alfred/bat-hosts.lua endef $(eval $(call BuildPackage,alfred)) diff --git a/alfred/files/alfred.config b/alfred/files/alfred.config index b8fa9b2..9d3fff6 100644 --- a/alfred/files/alfred.config +++ b/alfred/files/alfred.config @@ -3,5 +3,6 @@ config 'alfred' 'alfred' option mode 'master' option batmanif 'bat0' option start_vis '1' + option run_facters '1' # REMOVE THIS LINE TO ENABLE ALFRED option disabled '1' diff --git a/alfred/files/alfred.init b/alfred/files/alfred.init index 56818d8..e52a7bd 100755 --- a/alfred/files/alfred.init +++ b/alfred/files/alfred.init @@ -11,6 +11,7 @@ START=99 STOP=99 alfred_args="" vis_args="" +facters_dir="/etc/alfred" pid_file_alfred="/var/run/alfred.pid" pid_file_vis="/var/run/vis.pid" enable=0 @@ -48,6 +49,8 @@ alfred_start() append vis_args "-i $batmanif -s" fi + config_get_bool run_facters "$section" run_facters 0 + return 0 } @@ -63,12 +66,20 @@ start() SERVICE_PID_FILE="$pid_file_alfred" service_start /usr/sbin/alfred ${alfred_args} - if [ "$vis_enable" = "0" ]; then - exit 0 - fi - echo "${initscript}: starting vis" - SERVICE_PID_FILE="$pid_file_vis" - service_start /usr/sbin/vis ${vis_args} + if [ "$vis_enable" = "1" ]; then + echo "${initscript}: starting vis" + SERVICE_PID_FILE="$pid_file_vis" + service_start /usr/sbin/vis ${vis_args} + fi + + if [ "$run_facters" = "1" ]; then + ( for file in $facters_dir/* ; do [ -x $file ] && $file ; done ) + if ! ( grep -q "for file in $facters_dir/\* ; do " /etc/crontabs/root 2>/dev/null ) ; then + echo "*/5 * * * * ( for file in $facters_dir/* ; do [ -x \$file ] && \$file ; done )" >> /etc/crontabs/root + /etc/init.d/cron enable + /etc/init.d/cron restart + fi + fi } stop() @@ -77,5 +88,6 @@ stop() service_stop /usr/sbin/alfred SERVICE_PID_FILE="$pid_file_vis" [ -x /usr/sbin/vis ] && service_stop /usr/sbin/vis - + sed "\|for file in $facters_dir/\* ; do |d" -i /etc/crontabs/root + /etc/init.d/cron restart } diff --git a/alfred/files/bat-hosts.lua b/alfred/files/bat-hosts.lua new file mode 100644 index 0000000..7347fac --- /dev/null +++ b/alfred/files/bat-hosts.lua @@ -0,0 +1,108 @@ +#!/usr/bin/lua + +local type_id = 64 -- bat-hosts + +function get_hostname() + local hostfile = io.open("/proc/sys/kernel/hostname", "r") + local ret_string = hostfile:read("*a") + ret_string = string.gsub(ret_string, "\n", "") + hostfile:close() + return ret_string +end + +function get_interfaces_names() + local ret = {} + + for name in io.popen("ls -1 /sys/class/net/"):lines() do + table.insert(ret, name) + end + + return ret +end + +function get_interface_address(name) + local addressfile = io.open("/sys/class/net/"..name.."/address", "r") + local ret_string = addressfile:read("*a") + ret_string = string.gsub(ret_string, "\n", "") + addressfile:close() + return ret_string +end + + +local function generate_bat_hosts() +-- get hostname and interface macs/names +-- then return a table containing valid bat-hosts lines + local n, i + local ifaces, ret = {}, {} + + local hostname = get_hostname() + + for n, i in ipairs(get_interfaces_names()) do + local address = get_interface_address(i) + ifaces[address] = i + end + + for mac, iname in pairs(ifaces) do + if mac:match("^%x%x:%x%x:%x%x:%x%x:%x%x:%x%x$") and not mac:match("00:00:00:00:00:00") then + table.insert(ret, mac.." "..hostname.."_"..iname.."\n") + end + end + + return ret +end + +local function publish_bat_hosts() +-- pass a raw chunk of data to alfred + local fd = io.popen("alfred -s " .. type_id, "w") + if fd then + local ret = generate_bat_hosts() + if ret then + fd:write(table.concat(ret)) + end + fd:close() + end +end + +local function write_bat_hosts(rows) + local content = { "### File generated by alfred-bat-hosts\n" } + + -- merge the chunks from all nodes, de-escaping newlines + for _, row in ipairs(rows) do + local node, value = unpack(row) + table.insert(content, "# Node ".. node .. "\n") + table.insert(content, value:gsub("\x0a", "\n") .. "\n") + end + + -- write parsed content down to disk + local fd = io.open("/tmp/bat-hosts", "w") + if fd then + fd:write(table.concat(content)) + fd:close() + end + + -- try to make a symlink in /etc pointing to /tmp, + -- if it exists, ln will do nothing. + os.execute("ln -ns /tmp/bat-hosts /etc/bat-hosts 2>/dev/null") +end + +local function receive_bat_hosts() +-- read raw chunks from alfred, convert them to a nested table and call write_bat_hosts + + local fd = io.popen("alfred -r " .. type_id) + --[[ this command returns something like + { "54:e6:fc:b9:cb:37", "00:11:22:33:44:55 ham_wlan0\x0a00:22:33:22:33:22 ham_eth0\x0a" }, + { "90:f6:52:bb:ec:57", "00:22:33:22:33:23 spam\x0a" }, + ]]-- + + if fd then + local output = fd:read("*a") + if output then + assert(loadstring("rows = {" .. output .. "}"))() + write_bat_hosts(rows) + end + fd:close() + end +end + +publish_bat_hosts() +receive_bat_hosts()