From 0ee974f9cf20238c7a5b725b5050615d59a34b05 Mon Sep 17 00:00:00 2001 From: Doug Barton Date: Sun, 19 Jun 2011 22:59:54 +0000 Subject: [PATCH] Blah, forgot to svn add the actual script from r223310 --- etc/rc.d/netwait | 97 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100755 etc/rc.d/netwait diff --git a/etc/rc.d/netwait b/etc/rc.d/netwait new file mode 100755 index 000000000000..d7a518494103 --- /dev/null +++ b/etc/rc.d/netwait @@ -0,0 +1,97 @@ +#!/bin/sh + +# $FreeBSD$ +# +# PROVIDE: netwait +# REQUIRE: NETWORKING +# KEYWORD: nojail +# +# The netwait script is intended to be used by systems which have +# statically-configured IP addresses in rc.conf(5). If your system +# uses DHCP, you should use synchronous_dhclient="YES" in your +# /etc/rc.conf instead of using netwait. + +. /etc/rc.subr + +name="netwait" +rc_var=`set_rcvar` +start_cmd="${name}_start" +stop_cmd=":" + +netwait_start() +{ + local ip rc count output link + + if [ -z "${netwait_ip}" ]; then + err 1 "You must define one or more IP addresses in netwait_ip" + fi + + if [ ${netwait_timeout} -lt 1 ]; then + err 1 "netwait_timeout must be >= 1" + fi + + # Handle SIGINT (Ctrl-C); force abort of while() loop + trap break SIGINT + + if [ -n "${netwait_if}" ]; then + echo -n "Waiting for $netwait_if to have link" + + count=1 + while [ ${count} -le ${netwait_if_timeout} ]; do + if output=`/sbin/ifconfig ${netwait_if} 2>/dev/null`; then + link=`expr "${output}" : '.*[[:blank:]]status: \(no carrier\)'` + if [ -z "${link}" ]; then + echo '.' + break + fi + else + echo '' + err 1 "ifconfig ${netwait_if} failed" + fi + sleep 1 + count=$((count+1)) + done + if [ -n "${link}" ]; then + # Restore default SIGINT handler + trap - SIGINT + + echo '' + warn "Interface still has no link. Continuing with startup, but" + warn "be aware you may not have a fully functional networking" + warn "layer at this point." + return + fi + fi + + # Handle SIGINT (Ctrl-C); force abort of while() loop + trap break SIGINT + + for ip in ${netwait_ip}; do + echo -n "Waiting for ${ip} to respond to ICMP" + + count=1 + while [ ${count} -le ${netwait_timeout} ]; do + /sbin/ping -t 1 -c 1 -o ${ip} >/dev/null 2>&1 + rc=$? + + if [ $rc -eq 0 ]; then + # Restore default SIGINT handler + trap - SIGINT + + echo '.' + return + fi + count=$((count+1)) + done + echo ': No response from host.' + done + + # Restore default SIGINT handler + trap - SIGINT + + warn "Exhausted IP list. Continuing with startup, but be aware you may" + warn "not have a fully functional networking layer at this point." +} + +load_rc_config $name +run_rc_command "$1"