48 lines
1.1 KiB
Bash
Executable File
48 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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# How often to test, seconds
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ping_time=67
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# "One ping, must have reply in 1 sec"
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ping_opts="-c1 -W1 -w1"
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# If ping failed, how soon to retry
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retry_time=5
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# Reinit after this many consecutive ping error
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max_fail=5
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# Interface whose DHCP data to use
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if=${PWD##*/dhcp_}
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if=${if%%_pinger}
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msg() {
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echo "`date '+%Y-%m-%d %H:%M:%S'` $*" >>"$0.log"
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}
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if test -f "$0.log"; then
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tail -999 "$0.log" >"$0.log.new"
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mv "$0.log.new" "$0.log"
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fi
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test -f "/var/service/dhcp_$if/env.out" || exec env - sleep "$ping_time"
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. "/var/service/dhcp_$if/env.out"
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test x"$router" != x"" || exec env - sleep "$ping_time"
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#msg "Pinging $router"
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failcnt=0
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while true; do
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ping $ping_opts "$router" && exec env - sleep "$ping_time"
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: $((failcnt++))
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msg "Failed to ping $router, fail count:$failcnt"
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test $failcnt -ge $max_fail && break
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env - sleep "$retry_time"
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done
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test -d "/var/service/dhcp_$if" && {
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msg "Restarting /var/service/dhcp_$if"
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sv t "/var/service/dhcp_$if"
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}
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test -d "/var/service/supplicant_$if" && {
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msg "Restarting /var/service/supplicant_$if"
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sv t "/var/service/supplicant_$if"
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}
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exec env - sleep "$ping_time"
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