51da4b19be
are encountered at boot time: rcorder: requirement `ipfs' in file `/etc/rc.d/netif' has no providers. rcorder: requirement `ipfilter' in file `/etc/rc.d/netif' has no providers. rcorder: requirement `ipfilter' in file `/etc/rc.d/netwait' has no providers. rcorder: requirement `ipfilter' in file `/etc/rc.d/net_watchdog' has no providers. rcorder: requirement `ipfilter' in file `/etc/rc.d/securelevel' has no providers. Listing its own requrements in BEFORE rather than use REQUIRE of non-optional scripts resolves this issue. The issue was discovered and patched by glebius at Netflix. Submitted by: glebius Reported by: glebius MFC after: 1 week
117 lines
3.0 KiB
Bash
Executable File
117 lines
3.0 KiB
Bash
Executable File
#!/bin/sh
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# $FreeBSD$
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#
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# PROVIDE: netwait
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# REQUIRE: devd ipfw pf routing
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# KEYWORD: nojail
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#
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# The netwait script helps handle two situations:
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# - Systems with USB or other late-attaching network hardware which
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# is initialized by devd events. The script waits for all the
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# interfaces named in the netwait_if list to appear.
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# - Systems with statically-configured IP addresses in rc.conf(5).
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# The IP addresses in the netwait_ip list are pinged. The script
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# waits for any single IP in the list to respond to the ping. If your
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# system uses DHCP, you should probably use synchronous_dhclient="YES"
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# in your /etc/rc.conf instead of netwait_ip.
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# Either or both of the wait lists can be used (at least one must be
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# non-empty if netwait is enabled).
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. /etc/rc.subr
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name="netwait"
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desc="Wait for network devices or the network being up"
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rcvar="netwait_enable"
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start_cmd="${name}_start"
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stop_cmd=":"
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netwait_start()
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{
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local ip rc count output link wait_if got_if any_error
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if [ -z "${netwait_if}" ] && [ -z "${netwait_ip}" ]; then
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err 1 "No interface or IP addresses listed, nothing to wait for"
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fi
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if [ ${netwait_timeout} -lt 1 ]; then
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err 1 "netwait_timeout must be >= 1"
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fi
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if [ -n "${netwait_if}" ]; then
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any_error=0
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for wait_if in ${netwait_if}; do
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echo -n "Waiting for ${wait_if}"
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link=""
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got_if=0
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count=1
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# Handle SIGINT (Ctrl-C); force abort of while() loop
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trap break SIGINT
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while [ ${count} -le ${netwait_if_timeout} ]; do
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if output=`/sbin/ifconfig ${wait_if} 2>/dev/null`; then
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if [ ${got_if} -eq 0 ]; then
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echo -n ", interface present"
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got_if=1
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fi
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link=`expr "${output}" : '.*[[:blank:]]status: \(no carrier\)'`
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if [ -z "${link}" ]; then
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echo ', got link.'
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break
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fi
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fi
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sleep 1
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count=$((count+1))
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done
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# Restore default SIGINT handler
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trap - SIGINT
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if [ ${got_if} -eq 0 ]; then
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echo ", wait failed: interface never appeared."
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any_error=1
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elif [ -n "${link}" ]; then
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echo ", wait failed: interface still has no link."
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any_error=1
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fi
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done
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if [ ${any_error} -eq 1 ]; then
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warn "Continuing with startup, but be aware you may not have "
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warn "a fully functional networking layer at this point."
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fi
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fi
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if [ -n "${netwait_ip}" ]; then
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# Handle SIGINT (Ctrl-C); force abort of for() loop
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trap break SIGINT
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for ip in ${netwait_ip}; do
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echo -n "Waiting for ${ip} to respond to ICMP ping"
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count=1
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while [ ${count} -le ${netwait_timeout} ]; do
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/sbin/ping -t 1 -c 1 -o ${ip} >/dev/null 2>&1
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rc=$?
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if [ $rc -eq 0 ]; then
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# Restore default SIGINT handler
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trap - SIGINT
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echo ', got response.'
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return
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fi
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count=$((count+1))
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done
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echo ', failed: No response from host.'
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done
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# Restore default SIGINT handler
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trap - SIGINT
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warn "Exhausted IP list. Continuing with startup, but be aware you may"
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warn "not have a fully functional networking layer at this point."
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fi
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}
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load_rc_config $name
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run_rc_command "$1"
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