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503adcdf1d
Introduce a new rc.conf option to not wait for ARP resolution within dhclient. This is plausible on many modern networks where it is possible to trust the DHCP server to know whether an IP address is available. Sponsored by: Google LLC (GSoC 2024) Signed-off-by: Isaac Cilia Attard <icattard@FreeBSD.org> MFC after: 10 days Reviwed by: cperciva, brooks, Tom Hukins, Alexander Ziaee Pull Request: https://github.com/freebsd/freebsd-src/pull/1368
77 lines
1.6 KiB
Bash
Executable File
77 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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#
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#
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# PROVIDE: dhclient
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# KEYWORD: nojailvnet nostart
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. /etc/rc.subr
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. /etc/network.subr
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ifn="$2"
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name="dhclient"
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desc="Dynamic Host Configuration Protocol (DHCP) client"
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rcvar=
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pidfile="/var/run/dhclient/${name}.${ifn}.pid"
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start_precmd="dhclient_prestart"
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stop_precmd="dhclient_pre_check"
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# rc_force check can only be done at the run_rc_command
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# time, so we're testing it in the pre* hooks.
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dhclient_pre_check()
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{
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if [ -z "${rc_force}" ] && ! dhcpif $ifn; then
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local msg
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msg="'$ifn' is not a DHCP-enabled interface"
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if [ -z "${rc_quiet}" ]; then
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echo "$msg"
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else
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debug "$msg"
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fi
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exit 1
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fi
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}
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dhclient_prestart()
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{
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dhclient_pre_check
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# Interface-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_arpwait=$(get_if_var $ifn dhclient_arpwait_IF $dhclient_arpwait)
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if ! checkyesno dhclient_arpwait; then
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rc_flags="${rc_flags} -n"
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fi
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# /var/run/dhclient is not guaranteed to exist,
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# e.g. if /var/run is a tmpfs
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install -d -o root -g wheel -m 755 ${pidfile%/*}
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rc_flags="${rc_flags} ${ifn}"
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}
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load_rc_config $name
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load_rc_config network
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# dhclient_prestart is not compatible with svcj
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dhclient_svcj="NO"
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if [ -z $ifn ] ; then
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# only complain if a command was specified but no interface
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if [ -n "$1" ] ; then
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err 1 "$0: no interface specified"
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fi
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fi
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run_rc_command "$1"
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