Date: Thu, 04 Jun 2026 08:39:16 +0000 From: Pouria Mousavizadeh Tehrani <pouria@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 5b5a836e72ec - main - defaultroute: Fix dual-stack and IPv6-only handling Message-ID: <6a2139b4.3b77a.1a6171a9@gitrepo.freebsd.org>
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The branch main has been updated by pouria: URL: https://cgit.FreeBSD.org/src/commit/?id=5b5a836e72ec2614def23409674822c907cf3740 commit 5b5a836e72ec2614def23409674822c907cf3740 Author: Pouria Mousavizadeh Tehrani <pouria@FreeBSD.org> AuthorDate: 2026-06-04 07:58:07 +0000 Commit: Pouria Mousavizadeh Tehrani <pouria@FreeBSD.org> CommitDate: 2026-06-04 08:37:21 +0000 defaultroute: Fix dual-stack and IPv6-only handling Since IPv6-only setups are becoming more common, and IPv6 connectivity is often sufficient for tasks such as DNS resolution and NTP time synchronization, update defaultroute rc.d script to support IPv6-only environments. Reviewed by: pouria, ae Differential Revision: https://reviews.freebsd.org/D56797 --- libexec/rc/rc.d/defaultroute | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-) diff --git a/libexec/rc/rc.d/defaultroute b/libexec/rc/rc.d/defaultroute index b96f91d36118..5368dca4cf62 100755 --- a/libexec/rc/rc.d/defaultroute +++ b/libexec/rc/rc.d/defaultroute @@ -1,6 +1,6 @@ #!/bin/sh # -# Wait for the default route to be up if DHCP is in use +# Wait for the default route to be up if DHCPv4 or IPv6 SLAAC is in use # # @@ -22,7 +22,7 @@ defaultroute_carrier() local carrier nocarrier carrier=1 - for _if in ${dhcp_interfaces}; do + for _if in ${dhcp_interfaces} ${autoconf_interfaces}; do output=`/sbin/ifconfig ${_if}` nocarrier=`expr "${output}" : '.*[[:blank:]]status: \(no carrier\)'` [ -z "${nocarrier}" ] && carrier=0 @@ -32,22 +32,30 @@ defaultroute_carrier() defaultroute_start() { - local nl waited + local have_inet have_inet6 nl waited - afexists inet || return 0 + # Check for IPv4/IPv6 support + have_inet=0 + afexists inet && have_inet=1 + have_inet6=0 + afexists inet6 && have_inet6=1 + [ ${have_inet} -eq 0 ] && [ ${have_inet6} -eq 0 ] && return - # Return without waiting if we don't have dhcp interfaces or - # if none of the dhcp interfaces is plugged in. - dhcp_interfaces=`list_net_interfaces dhcp` - [ -z "${dhcp_interfaces}" ] && return + # Return without waiting if we don't have dhcp or autoconf interfaces, + # or if none of them is plugged in. + [ ${have_inet} -ne 0 ] && dhcp_interfaces=`list_net_interfaces dhcp` + [ ${have_inet6} -ne 0 ] && autoconf_interfaces=`list_net_interfaces autoconf` + [ -z "${dhcp_interfaces}" -a -z "${autoconf_interfaces}" ] && return # Wait for a default route waited=0 while [ ${waited} -lt ${defaultroute_delay} ]; do - defif=`get_default_if -inet` - if [ -n "${defif}" ]; then + [ ${have_inet} -ne 0 ] && defif=`get_default_if -inet` + [ ${have_inet6} -ne 0 ] && defif6=`get_default_if -inet6` + if [ -n "${defif}" ] || [ -n "${defif6}" ]; then if [ ${waited} -ne 0 ]; then - echo -n "($defif)" + [ -n "${defif}" ] && echo -n "($defif)=>inet " + [ -n "${defif6}" ] && echo -n "($defif6)=>inet6" nl=1 fi breakhome | help
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