983daa047f
rapid wireless association changes in my experience), there is a race where dhclient is in the process of exiting due to the link going down when the link coming up causes devd to try and start a new one. This results is the link being up, but no dhclient running. Work around this race by checking a second time after a one second delay before refusing to start a dhclient instance due to one already being running. MFC after: 1 week
61 lines
1.0 KiB
Bash
Executable File
61 lines
1.0 KiB
Bash
Executable File
#!/bin/sh
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#
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# $FreeBSD$
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#
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# PROVIDE: dhclient
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# KEYWORD: nojail nostart
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. /etc/rc.subr
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. /etc/network.subr
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name="dhclient"
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rcvar=
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start_cmd="dhclient_start"
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stop_cmd="dhclient_stop"
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dhclient_start()
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{
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# prevent unnecessary restarts
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# XXX: dhclient had better create a pidfile
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if [ -x /bin/pgrep ]; then
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pids=`/bin/pgrep -f "dhclient: $ifn(\$| .*)"`
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if [ -n "$pids" ]; then
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sleep 1
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pids=`/bin/pgrep -f "dhclient: $ifn(\$| .*)"`
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if [ -n "$pids" ]; then
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exit 0
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fi
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fi
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fi
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# Override for $ifn specific flags (see rc.subr for $flags setting)
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specific=`get_if_var $ifn dhclient_flags_IF`
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if [ -z "$flags" -a -n "$specific" ]; then
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rc_flags=$specific
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fi
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background_dhclient=`get_if_var $ifn background_dhclient_IF $background_dhclient`
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if checkyesno background_dhclient; then
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rc_flags="${rc_flags} -b"
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fi
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${dhclient_program} ${rc_flags} $ifn
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}
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dhclient_stop()
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{
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ifconfig $ifn down # cause dhclient to die
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}
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ifn="$2"
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load_rc_config $name
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load_rc_config network
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if ! dhcpif $ifn; then
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return 1
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fi
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run_rc_command "$1"
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