c40c8024ee
Changes between alfred 2015.0 and 2015.1 cause alfred to print an error and exit when the interface to bind to is not completely set up (has no non-tentative link-local address). As a workaround, wait for such an address by reading /proc/net/if_inet6 before alfred is started. In the long term, it would be nice to make alfred more robust against missing interfaces (allowing alfred to start without the interface existing, and keeping it working even when the interface is removed and re-added while alfred is running). Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
143 lines
3.2 KiB
Bash
Executable file
143 lines
3.2 KiB
Bash
Executable file
#!/bin/sh /etc/rc.common
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#
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# Copyright (C) 2013 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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START=99
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STOP=99
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alfred_args=""
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vis_args=""
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facters_dir="/etc/alfred"
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pid_file_alfred="/var/run/alfred.pid"
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pid_file_vis="/var/run/batadv-vis.pid"
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enable=0
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vis_enable=0
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SERVICE_DAEMONIZE=1
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SERVICE_WRITE_PID=1
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wait_for_dir()
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{
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local ifce="$1" dir="$2"
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if ! [ -d "$dir" ] ; then
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timeout=30
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echo "${initscript}: waiting $timeout secs for $ifce interface..."
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for i in $(seq $timeout); do
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sleep 1
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[ -d "$dir" ] && break
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if [ $i == $timeout ] ; then
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echo "${initscript}: $ifce not detected, alfred not starting."
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exit 1
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fi
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done
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fi
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}
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wait_for_ll_address()
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{
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local iface="$1"
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local timeout=30
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echo "${initscript}: waiting $timeout secs for $iface address..."
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for i in $(seq $timeout); do
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# We look for
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# - the link-local address (starts with fe80)
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# - without tentative flag (bit 0x40 in the flags field; the first char of the flags field begins 38 columns after the fe80 prefix
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# - on interface $iface
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if awk '
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BEGIN { RET=1 }
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/^fe80.{37} [012389ab]/ { if ($6 == "'"$iface"'") RET=0 }
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END { exit RET }
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' /proc/net/if_inet6; then
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return
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fi
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sleep 1
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done
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echo "${initscript}: $iface address not detected, alfred not starting."
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exit 1
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}
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alfred_start()
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{
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local args=""
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local section="$1"
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local disabled interface mode
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# check if section is disabled
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config_get_bool disabled "$section" disabled 0
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[ $disabled = 0 ] || return 1
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args=""
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config_get interface "$section" interface
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append args "-i $interface"
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config_get mode "$section" mode
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[ "$mode" = "master" ] && append args "-m"
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config_get batmanif "$section" batmanif
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append args "-b $batmanif"
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if [ "$batmanif" != "none" ]; then
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wait_for_dir "$batmanif" "/sys/class/net/$batmanif/mesh"
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fi
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wait_for_ll_address "$interface"
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append alfred_args "$args"
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enable=1
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config_get_bool start_vis "$section" start_vis 0
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if [ "$start_vis" = 1 ] && [ -x /usr/sbin/batadv-vis ]; then
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vis_enable=1
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append vis_args "-i $batmanif -s"
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fi
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config_get_bool run_facters "$section" run_facters 0
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return 0
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}
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start()
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{
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config_load "alfred"
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config_foreach alfred_start alfred
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if [ "$enable" = "0" ]; then
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exit 0
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fi
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echo "${initscript}: starting alfred"
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SERVICE_PID_FILE="$pid_file_alfred"
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service_start /usr/sbin/alfred ${alfred_args}
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if [ "$vis_enable" = "1" ]; then
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echo "${initscript}: starting batadv-vis"
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SERVICE_PID_FILE="$pid_file_vis"
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service_start /usr/sbin/batadv-vis ${vis_args}
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fi
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if [ "$run_facters" = "1" ]; then
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( for file in $facters_dir/* ; do [ -x $file ] && $file ; done )
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if ! ( grep -q "for file in $facters_dir/\* ; do " /etc/crontabs/root 2>/dev/null ) ; then
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echo "*/5 * * * * ( for file in $facters_dir/* ; do [ -x \$file ] && \$file ; done )" >> /etc/crontabs/root
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/etc/init.d/cron enable
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/etc/init.d/cron restart
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fi
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fi
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}
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stop()
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{
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SERVICE_PID_FILE="$pid_file_alfred"
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service_stop /usr/sbin/alfred
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SERVICE_PID_FILE="$pid_file_vis"
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[ -x /usr/sbin/batadv-vis ] && service_stop /usr/sbin/batadv-vis
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sed "\|for file in $facters_dir/\* ; do |d" -i /etc/crontabs/root
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/etc/init.d/cron restart
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}
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