diff options
| -rwxr-xr-x | examples/var_service/dhcp_if_pinger/run | 44 |
1 files changed, 34 insertions, 10 deletions
diff --git a/examples/var_service/dhcp_if_pinger/run b/examples/var_service/dhcp_if_pinger/run index 20b2fc516..1868510d1 100755 --- a/examples/var_service/dhcp_if_pinger/run +++ b/examples/var_service/dhcp_if_pinger/run @@ -1,23 +1,47 @@ #!/bin/sh -delay=67 - +# How often to test, seconds +ping_time=67 +# "One ping, must have reply in 1 sec" +ping_opts="-c1 -W1 -w1" +# If ping failed, how soon to retry +retry_time=5 +# Reinit after this many consecutive ping error +max_fail=5 +# Interface whose DHCP data to use if=${PWD##*/dhcp_} if=${if%%_pinger} +msg() { + echo "`date '+%Y-%m-%d %H:%M:%S'` $*" >>"$0.log" +} + if test -f "$0.log"; then tail -999 "$0.log" >"$0.log.new" mv "$0.log.new" "$0.log" fi -test -f "/var/service/dhcp_$if/dhcp_$if.out" || exec env - sleep "$delay" -. "/var/service/dhcp_$if/dhcp_$if.out" -test x"$router" != x"" || exec env - sleep "$delay" +test -f "/var/service/dhcp_$if/dhcp_$if.out" || exec env - sleep "$ping_time" -#echo "`date '+%Y-%m-%d %H:%M:%S'` Testing ping -c3 $router" >>"$0.log" -ping -c3 "$router" && exec env - sleep "$delay" +. "/var/service/dhcp_$if/dhcp_$if.out" +test x"$router" != x"" || exec env - sleep "$ping_time" -echo "`date '+%Y-%m-%d %H:%M:%S'` Restarting /var/service/dhcp_$if" >>"$0.log" -sv t "/var/service/dhcp_$if" +#msg "Pinging $router" +failcnt=0 +while true; do + ping $ping_opts "$router" && exec env - sleep "$ping_time" + : $((failcnt++)) + msg "Failed to ping $router, fail count:$failcnt" + test $failcnt -ge $max_fail && break + env - sleep "$retry_time" +done -exec env - sleep "$delay" +test -d "/var/service/dhcp_$if" && { + msg "Restarting /var/service/dhcp_$if" + sv t "/var/service/dhcp_$if" +} +test -d "/var/service/supplicant_$if" && { + msg "Restarting /var/service/supplicant_$if" + sv t "/var/service/supplicant_$if" +} +exec env - sleep "$ping_time" |