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-rw-r--r--source/n/network-scripts/scripts/rc.inet1594
1 files changed, 444 insertions, 150 deletions
diff --git a/source/n/network-scripts/scripts/rc.inet1 b/source/n/network-scripts/scripts/rc.inet1
index 59f89eda7..f63f93ed7 100644
--- a/source/n/network-scripts/scripts/rc.inet1
+++ b/source/n/network-scripts/scripts/rc.inet1
@@ -15,17 +15,20 @@
# LOGGING #
###########
-# If possible, log events in /var/log/messages:
-if [ -f /var/run/syslogd.pid ] && [ -x /usr/bin/logger ]; then
- LOGGER=/usr/bin/logger
-else # output to stdout/stderr:
- LOGGER=/bin/cat
-fi
+# Message logging.
+info_log() {
+ # If possible, log events in /var/log/messages:
+ if [ -f /var/run/syslogd.pid ] && [ -x /usr/bin/logger ]; then
+ /usr/bin/logger -t "rc.inet1" --id="$$" "$*"
+ else
+ printf "%s: %s\\n" "rc.inet1" "$*"
+ fi
+}
-# Handy wrapper for verbose logging:
+# Verbose logging.
debug_log() {
if [ "$DEBUG_ETH_UP" = "yes" ]; then
- echo "/etc/rc.d/rc.inet1: $*" | $LOGGER
+ info_log "$*"
fi
}
@@ -46,22 +49,56 @@ do
IFNAME[$i]=${IFNAME[$i]:=eth${i}}
i=$(($i+1))
done
-debug_log "List of interfaces: '${IFNAME[*]}'"
+debug_log "List of interfaces: ${IFNAME[*]}"
+
+####################
+# PRE-LOAD MODULES #
+####################
+
+for i in "${IFNAME[@]}"; do
+ # If the interface isn't in the kernel yet (but there's an alias for it in modules.conf),
+ # then it should be loaded first:
+ if [ ! -e /sys/class/net/${i%%[:.]*} ]; then # no interface yet
+ if /sbin/modprobe -c | grep -v "^#" | grep -w "alias ${i%%[:.]*}" | grep -vw "alias ${i%%[:.]*} off" >/dev/null; then
+ debug_log "/sbin/modprobe ${i%%[:.]*}"
+ /sbin/modprobe ${i%%[:.]*}
+ _DID_MODPROBE=1
+ fi
+ fi
+done
+# Normally the ipv6 module would be automatically loaded when the first IP is assigned to an
+# interface (assuming ipv6 has not been disabled entirely), but autoconf/accept_ra need to be
+# set to 0 before that happens, so try to pre-load ipv6 here.
+if [ ! -e /proc/sys/net/ipv6 ]; then
+ debug_log "/sbin/modprobe ipv6"
+ /sbin/modprobe -q ipv6
+ _DID_MODPROBE=1
+fi
+# If we did any module loading in the blocks above, sleep for a couple of
+# seconds to give time for everything to "take"
+[ -n "${_DID_MODPROBE}" ] && sleep 2
+unset _DID_MODPROBE
######################
# LOOPBACK FUNCTIONS #
######################
-# Function to bring up the loopback interface. If loopback is
+# Function to bring up the loopback interface. If loopback is
# already up, do nothing.
lo_up() {
if [ -e /sys/class/net/lo ]; then
if ! /sbin/ip link show dev lo | grep -wq -e "state UP" -e "state UNKNOWN" ; then
- echo "/etc/rc.d/rc.inet1: /sbin/ip address add 127.0.0.1/8 dev lo" | $LOGGER
- /sbin/ip address add 127.0.0.1/8 dev lo
+ info_log "lo: configuring interface"
+ debug_log "/sbin/ip -4 address add 127.0.0.1/8 dev lo"
+ /sbin/ip -4 address add 127.0.0.1/8 dev lo
+ if [ -e /proc/sys/net/ipv6 ]; then
+ debug_log "/sbin/ip -6 address add ::1/128 dev lo"
+ /sbin/ip -6 address add ::1/128 dev lo
+ fi
+ debug_log "/sbin/ip link set dev lo up"
/sbin/ip link set dev lo up
- echo "/etc/rc.d/rc.inet1: /sbin/ip route add 127.0.0.0/8 dev lo" | $LOGGER
- /sbin/ip route add 127.0.0.0/8 dev lo
+ debug_log "/sbin/ip route add 127.0.0.0/8 dev lo"
+ /sbin/ip route add 127.0.0.0/8 dev lo
fi
fi
}
@@ -69,7 +106,10 @@ lo_up() {
# Function to take down the loopback interface:
lo_down() {
if [ -e /sys/class/net/lo ]; then
- echo "/etc/rc.d/rc.inet1: /sbin/ip link set dev lo down" | $LOGGER
+ info_log "lo: de-configuring interface"
+ debug_log "/sbin/ip address flush dev lo"
+ /sbin/ip address flush dev lo
+ debug_log "/sbin/ip link set dev lo down"
/sbin/ip link set dev lo down
fi
}
@@ -78,20 +118,24 @@ lo_down() {
# INTERFACE FUNCTIONS #
#######################
-# Function to create virtual interfaces.
+# Function to create virtual interfaces
virtif_create() {
# argument is 'i' - the position of this interface in the VIRTIFNAME array.
# this loop goes from i=0 to i=number_of_configured_virtual_interfaces_minus_one
# which means it doesn't do anything if there are none.
for i in $(seq 0 $((${#VIRTIFNAME[@]} - 1))); do
+ info_log "${VIRTIFNAME[$i]}: creating virtual interface"
+ debug_log "/sbin/ip tuntap add dev ${VIRTIFNAME[$i]} mode ${VIRTIFTYPE[$i]} user ${VIRTIFUSER[$i]} group ${VIRTIFGROUP[$i]}"
/sbin/ip tuntap add dev ${VIRTIFNAME[$i]} mode ${VIRTIFTYPE[$i]} user ${VIRTIFUSER[$i]} group ${VIRTIFGROUP[$i]}
done
}
-# Function to destroy virtual interfaces.
+# Function to destory virtual interfaces
virtif_destroy() {
# argument is 'i' - the position of this interface in the VIRTIFNAME array.
for i in $(seq 0 $((${#VIRTIFNAME[@]} - 1))); do
+ info_log "${VIRTIFNAME[$i]}: destroying virtual interface"
+ debug_log "/sbin/ip tuntap del dev ${VIRTIFNAME[$i]} mode ${VIRTIFTYPE[$i]}"
/sbin/ip tuntap del dev ${VIRTIFNAME[$i]} mode ${VIRTIFTYPE[$i]}
done
}
@@ -99,30 +143,91 @@ virtif_destroy() {
# Function to assemble a bridge interface.
br_open() {
# argument is 'i' - the position of this interface in the IFNAME array.
+ info_log "${IFNAME[$1]}: creating bridge"
+ debug_log "/sbin/ip link add name ${IFNAME[$1]} type bridge"
/sbin/ip link add name ${IFNAME[$1]} type bridge
for BRIF in ${BRNICS[$1]}; do
- /sbin/ip link set dev $BRIF down
- /sbin/ip address add 0.0.0.0 dev $BRIF
+ debug_log "/sbin/ip address flush dev $BRIF"
+ /sbin/ip address flush dev $BRIF
+ debug_log "/sbin/ip link set dev $BRIF master ${IFNAME[$1]}"
/sbin/ip link set dev $BRIF master ${IFNAME[$1]}
+ debug_log "/sbin/ip link set dev $BRIF up"
/sbin/ip link set dev $BRIF up
done
+ while read -r -d \| IFOPT; do
+ if [ -n "$IFOPT" ]; then
+ debug_log "/sbin/ip link set dev ${IFNAME[$1]} type bridge $IFOPT"
+ /sbin/ip link set dev ${IFNAME[$1]} type bridge $IFOPT
+ fi
+ done <<<"${IFOPTS[$i]}|" # The | on the end is required.
+ debug_log "/sbin/ip link set dev ${IFNAME[$1]} up"
/sbin/ip link set dev ${IFNAME[$1]} up
}
# Function to disassemble a bridge interface.
br_close() {
- /sbin/ip link set dev ${IFNAME[$1]} down
# argument is 'i' - the position of this interface in the IFNAME array.
- #for BRIF in ${BRNICS[$1]}; do
+ info_log "${IFNAME[$1]}: destroying bridge"
+ debug_log "/sbin/ip link set dev ${IFNAME[$1]} down"
+ /sbin/ip link set dev ${IFNAME[$1]} down
for BRIF in $(ls --indicator-style=none /sys/class/net/${IFNAME[$1]}/brif/)
do
+ debug_log "/sbin/ip link set dev $BRIF nomaster"
/sbin/ip link set dev $BRIF nomaster
done
- /sbin/ip link set dev ${IFNAME[$1]} down
+ for BRIF in ${BRNICS[$1]}; do
+ debug_log "/sbin/ip link set dev $BRIF down"
+ /sbin/ip link set dev $BRIF down
+ done
+ debug_log "/sbin/ip link del ${IFNAME[$1]}"
/sbin/ip link del ${IFNAME[$1]}
}
-# Function to bring up a network interface. If the interface is
+# Function to create a bond.
+bond_create() {
+ # Argument is 'i' - the position of this interface in the IFNAME array.
+ info_log "${IFNAME[$1]}: creating bond"
+ debug_log "/sbin/ip link add name ${IFNAME[$1]} type bond"
+ /sbin/ip link add name ${IFNAME[$1]} type bond
+ debug_log "/sbin/ip link set dev ${IFNAME[$1]} type bond mode ${BONDMODE[$1]:-balance-rr}"
+ /sbin/ip link set dev ${IFNAME[$1]} type bond mode ${BONDMODE[$1]:-balance-rr}
+ for BONDIF in ${BONDNICS[$1]}; do
+ debug_log "/sbin/ip address flush dev $BONDIF"
+ /sbin/ip address flush dev $BONDIF
+ debug_log "/sbin/ip link set $BONDIF master ${IFNAME[$1]}"
+ /sbin/ip link set $BONDIF master ${IFNAME[$1]}
+ debug_log "/sbin/ip link set dev $BONDIF up"
+ /sbin/ip link set dev $BONDIF up
+ done
+ # This has to be done *after* the interface is brought up because the
+ # 'primary <interface>' option has to occur after the interface is active.
+ while read -r -d \| IFOPT; do
+ if [ -n "$IFOPT" ]; then
+ debug_log "/sbin/ip link set dev ${IFNAME[$1]} type bond $IFOPT"
+ /sbin/ip link set dev ${IFNAME[$1]} type bond $IFOPT
+ fi
+ done <<<"${IFOPTS[$1]}|" # The | on the end is required.
+}
+
+# Function to destroy a bond.
+bond_destroy() {
+ # Argument is 'i' - the position of this interface in the IFNAME array.
+ info_log "${IFNAME[$1]}: destroying bond"
+ debug_log "/sbin/ip link set dev ${IFNAME[$1]} down"
+ /sbin/ip link set dev ${IFNAME[$1]} down
+ debug_log "/sbin/ip address flush dev ${IFNAME[$1]}"
+ /sbin/ip address flush dev ${IFNAME[$1]}
+ for BONDIF in ${BONDNICS[$1]}; do
+ debug_log "/sbin/ip link set $BONDIF nomaster"
+ /sbin/ip link set $BONDIF nomaster
+ debug_log "/sbin/ip link set dev $BONDIF down"
+ /sbin/ip link set dev $BONDIF down
+ done
+ debug_log "/sbin/ip link del name ${IFNAME[$1]} type bond"
+ /sbin/ip link del name ${IFNAME[$1]} type bond
+}
+
+# Function to bring up a network interface. If the interface is
# already up or does not yet exist (perhaps because the kernel driver
# is not loaded yet), do nothing.
if_up() {
@@ -133,126 +238,265 @@ if_up() {
i=$(($i+1))
done
# If "i" is greater or equal to "MAXNICS" at this point, it means we didn't
- # find an entry in IFNAME array corresponding to "$1", which likely means
+ # find an entry in IFNAME array corresponding to "${1}", which likely means
# there are more interfaces configured than MAXNICS. Let's err on the
# side of caution and do nothing instead of possibly doing the wrong thing.
if [ $i -ge $MAXNICS ]; then
- echo "/etc/rc.d/rc.inet1: skipping ${1}, you might need to increase MAXNICS" | $LOGGER
+ info_log "${1}: skipping - you might need to increase MAXNICS"
return
fi
- # If the interface is a bridge, then create it first:
+ info_log "${1}: configuring interface"
+ # If you need to set hardware addresses for the underlying interfaces in a
+ # bond or bridge, configure the interfaces with IPs of 0.0.0.0 and set the
+ # MAC address with HWADDR. Then, finally, define the bond or bridge.
+ # If the interface is a bond, create it.
+ [ -n "${BONDNICS[$i]}" ] && bond_create $i
+ # If the interface is a bridge, create it.
[ -n "${BRNICS[$i]}" ] && br_open $i
- # If the interface isn't in the kernel yet (but there's an alias for it in
- # modules.conf), then it should be loaded first:
- if [ -z "${IPADDR[$i]}" ] && [ "${USE_DHCP[$i]}" != "yes" ]; then # skip unconfigured interfaces
- debug_log "skipping ${1} early, interface is not configured in /etc/rc.d/rc.inet1.conf"
- return 0
- fi
- if [ ! -e /sys/class/net/${1%%:*} ]; then # no interface yet
- if /sbin/modprobe -c | grep -v "^#" | grep -w "alias ${1}" | grep -vw "alias ${1} off" > /dev/null ; then
- echo "/etc/rc.d/rc.inet1: /sbin/modprobe ${1}" | $LOGGER
- /sbin/modprobe ${1}
- fi
- fi
- if [ -e /sys/class/net/${1%%:*} ]; then # interface exists
- if ! /sbin/ip address show dev ${1} 2>/dev/null | grep -wq inet || \
- ! /sbin/ip link show dev ${1} | grep -wq "state UP" ; then # interface not up or not configured
- if [ -n "${HWADDR[$i]}" ]; then # Set hardware address _before_ the interface goes up:
- echo "/etc/rc.d/rc.inet1: /sbin/ip link set dev ${1} address ${HWADDR[$i]}" | $LOGGER
- /sbin/ip link set dev ${1} address ${HWADDR[$i]}
+ if [ -e /sys/class/net/${1%%[:.]*} ]; then # interface exists
+ if ! /sbin/ip address show scope global dev ${1} 2>/dev/null | grep -Ewq '(inet|inet6)' || \
+ ! /sbin/ip link show dev ${1} | grep -wq "state UP"; then # interface not up or not configured
+ local IF_UP=0
+ # Initialize any wireless parameters:
+ if [ -x /etc/rc.d/rc.wireless ]; then
+ . /etc/rc.d/rc.wireless ${1} start
fi
- if [ -n "${MTU[$i]}" ]; then # Set MTU to something else than 1500
- echo "/etc/rc.d/rc.inet1: /sbin/ip link set dev ${1} mtu ${MTU[$i]}" | $LOGGER
- /sbin/ip link set dev ${1} mtu ${MTU[$i]}
+ # Handle VLAN interfaces before trying to configure IP addresses.
+ if echo "${1}" | grep -Fq .; then
+ IFACE="${1%.*}"
+ VLAN="${1##*.}"
+ # Check if the underlying interface is already up.
+ if ! /sbin/ip link show dev $IFACE 2>/dev/null| grep -wq "state UP"; then
+ # Bring up the underlying interface.
+ debug_log "/sbin/ip link set dev $IFACE up"
+ if ! /sbin/ip link set dev $IFACE up; then
+ info_log "${1}: failed to bring up interface $IFACE"
+ return
+ fi
+ IF_UP=1
+ fi
+ # Configure the VLAN interface.
+ info_log "${1}: creating VLAN interface"
+ debug_log "/sbin/ip link add link $IFACE name ${1} type vlan id $VLAN"
+ if ! /sbin/ip link add link $IFACE name ${1} type vlan id $VLAN; then
+ info_log "${1}: failed to create VLAN interface"
+ ((IF_UP == 1)) && /sbin/ip link set dev $IFACE down
+ return
+ fi
+ while read -r -d \| IFOPT; do
+ if [ -n "$IFOPT" ]; then
+ debug_log "/sbin/ip link set dev ${1} type vlan $IFOPT"
+ /sbin/ip link set dev ${1} type vlan $IFOPT
+ fi
+ done <<<"${IFOPTS[$i]}|" # The | on the end is required.
+ elif [ -z "${BONDNICS[$i]}" ] && [ -z "${BRNICS[$i]}" ]; then
+ # Only apply IFOPTS for a physical interface if it's not been handled
+ # by a higher level interface.
+ while read -r -d \| IFOPT; do
+ if [ -n "$IFOPT" ]; then
+ debug_log "/sbin/ip link set dev ${1} $IFOPT"
+ /sbin/ip link set dev ${1} $IFOPT
+ fi
+ done <<<"${IFOPTS[$i]}|" # The | on the end is required.
fi
- if /sbin/ip link show dev ${1} | grep -wq "state DOWN" ; then
- /sbin/ip link set dev ${1} up # Bring up interface
+ # Set hardware address:
+ if [ -n "${HWADDR[$i]}" ]; then
+ debug_log "/sbin/ip link set dev ${1} address ${HWADDR[$i]}"
+ if ! /sbin/ip link set dev ${1} address ${HWADDR[$i]} 2>/dev/null; then
+ info_log "${1}: failed to set hardware address"
+ fi
fi
- if [ -x /etc/rc.d/rc.wireless ]; then
- . /etc/rc.d/rc.wireless ${1} start # Initialize any wireless parameters
+ if [ -e /proc/sys/net/ipv6 ]; then # ipv6 networking is available
+ # Disable v6 IP auto configuration before trying to bring up the interface:
+ debug_log "${1}: disabling IPv6 autoconf"
+ echo "0" >/proc/sys/net/ipv6/conf/${1}/autoconf
+ if [ "${USE_RA[$i]}" = "yes" ]; then
+ # Unconditionally accept router advertisements on this interface:
+ debug_log "${1}: accepting IPv6 RA"
+ echo "1" >/proc/sys/net/ipv6/conf/${1}/accept_ra
+ else
+ # Disable router advertisments on this interface until SLAAC is enabled:
+ debug_log "${1}: ignoring IPv6 RA"
+ echo "0" >/proc/sys/net/ipv6/conf/${1}/accept_ra
+ fi
fi
- if [ "${USE_DHCP[$i]}" = "yes" ]; then # use DHCP to bring interface up
- # Clear DHCP_OPTIONS before adding new options to it:
- unset DHCP_OPTIONS
+ debug_log "/sbin/ip address flush dev ${1}"
+ /sbin/ip address flush dev ${1}
+ IF_UP=0
+ # Slackware historically favours dynamic configuration over fixed IP to configure interfaces, so keep that tradition:
+ if [ "${USE_DHCP[$i]}" = "yes" ] || { [ -e /proc/sys/net/ipv6 ] && [ "${USE_DHCP6[$i]}" = "yes" ]; }; then # use dhcpcd
+ info_log "${1}: starting dhcpcd"
+ # Declare DHCP_OPTIONS array before adding new options to it:
+ local -a DHCP_OPTIONS=()
# Set DHCP_OPTIONS for this interface:
- [ -n "${DHCP_HOSTNAME[$i]}" ] && DHCP_OPTIONS="-h ${DHCP_HOSTNAME[$i]}"
- [ "${DHCP_KEEPRESOLV[$i]}" = "yes" ] && DHCP_OPTIONS="$DHCP_OPTIONS -C resolv.conf"
- [ "${DHCP_KEEPNTP[$i]}" = "yes" ] && DHCP_OPTIONS="$DHCP_OPTIONS -C ntp.conf"
- [ "${DHCP_KEEPGW[$i]}" = "yes" ] && DHCP_OPTIONS="$DHCP_OPTIONS -G"
- [ "${DHCP_DEBUG[$i]}" = "yes" ] && DHCP_OPTIONS="$DHCP_OPTIONS -d"
- [ "${DHCP_NOIPV4LL[$i]}" = "yes" ] && DHCP_OPTIONS="$DHCP_OPTIONS -L"
- [ -n "${DHCP_IPADDR[$i]}" ] && DHCP_OPTIONS="$DHCP_OPTIONS -r ${DHCP_IPADDR[$i]}"
- echo "Polling for DHCP server on interface ${1}:"
- # If you set a timeout, you get one, even if the kernel doesn't think that
- # your device is connected, in case /sys isn't right (which it usually isn't
- # except right after the device is loaded, when it usually is):
- #### (start commented out)
- # This is deactivated for now since the kernel has been returning incorrect
- # results concerning whether the interface carrier is detected.
- #if [ -z "${DHCP_TIMEOUT[$i]}" ]; then
- # /sbin/ip link set dev ${1} up && sleep 1
- # CONNSTATUS="$(cat /sys/class/net/${1}/carrier 2> /dev/null)"
- # /sbin/ip link set dev ${1} down
- # if [ "$CONNSTATUS" = "0" ]; then
- # # The kernel has just told us the cable isn't even plugged in, but we will
- # # give any DHCP server a short chance to reply anyway:
- # echo "No carrier detected on ${1}. Reducing DHCP timeout to 15 seconds."
- # DHCP_TIMEOUT[$i]=15
- # fi
- #fi
- #### (end commented out)
- # 15 seconds should be a reasonable default DHCP timeout. 30 was too much.
- echo "/etc/rc.d/rc.inet1: /sbin/dhcpcd -L -t ${DHCP_TIMEOUT[$i]:-15} ${DHCP_OPTIONS} ${1}" | $LOGGER
- /sbin/dhcpcd -L -t ${DHCP_TIMEOUT[$i]:-15} ${DHCP_OPTIONS} ${1}
- if [ "$?" == "0" ]; then # the dhcp call has succeeded
- if [ -n "${IPALIASES[$i]}" ]; then
- # Add extra IP addresses, if defined, to interface
- num=0
- for ipalias in ${IPALIASES[$i]}; do
- ip="${ipalias%/*}"
- nm="${ipalias#*/}"
- [ -z "$nm" ] || [ "$ip" == "$nm" ] && nm="32"
- /sbin/ip address add ${ip}/${nm} dev ${1} label ${1}:${num}
- num=$(($num + 1))
- done
+ if [ -e /proc/sys/net/ipv6 ]; then
+ if [ "${USE_DHCP[$i]}" = "yes" ] && [ "${USE_DHCP6[$i]}" != "yes" ]; then # only try v4 dhcp
+ DHCP_OPTIONS+=("-4")
+ elif [ "${USE_DHCP[$i]}" != "yes" ] && [ "${USE_DHCP6[$i]}" = "yes" ]; then # only try v6 dhcp
+ DHCP_OPTIONS+=("-6")
fi
- if [ "${PROMISCUOUS[$i]}" = "yes" ]; then
- # Set promiscuous mode on the interface
- /sbin/ip link set dev ${1} promisc on
+ else
+ DHCP_OPTIONS+=("-4")
+ fi
+ [ -n "${DHCP_HOSTNAME[$i]}" ] && DHCP_OPTIONS+=("-h" "${DHCP_HOSTNAME[$i]}")
+ [ "${DHCP_KEEPRESOLV[$i]}" = "yes" ] && DHCP_OPTIONS+=("-C" "resolv.conf")
+ [ "${DHCP_KEEPNTP[$i]}" = "yes" ] && DHCP_OPTIONS+=("-C" "ntp.conf")
+ [ "${DHCP_KEEPGW[$i]}" = "yes" ] && DHCP_OPTIONS+=("-G")
+ [ "${DHCP_DEBUG[$i]}" = "yes" ] && DHCP_OPTIONS+=("-d")
+ # The -L option used to be hard coded into the dhcpcd command line in -current. It was added to assist ARM users
+ # get networking up and running. Previous versions of Slackware did not have -L hard coded - the code here keeps
+ # the 14.2 behaviour, but can be altered to make the use of -L default as in -current. To change the behaviour,
+ # alter the test below to be: [ "${DHCP_NOIPV4LL[$i]}" != "no" ].
+ # Note: ARM users should make use of the DHCP_NOIPV4LL[x]="yes" parameter in rc.inet1.conf - this is the correct
+ # way to get the behaviour they seek.
+ [ "${DHCP_NOIPV4LL[$i]}" = "yes" ] && DHCP_OPTIONS+=("-L")
+ [ -n "${DHCP_IPADDR[$i]}" ] && DHCP_OPTIONS+=("-r" "${DHCP_IPADDR[$i]}")
+ echo "${1}: polling for DHCP server"
+ # 15 seconds should be a reasonable default DHCP timeout. 30 was too much.
+ debug_log "/sbin/dhcpcd -t ${DHCP_TIMEOUT[$i]:-15} ${DHCP_OPTIONS[*]} ${1}"
+ if /sbin/dhcpcd -t "${DHCP_TIMEOUT[$i]:-15}" "${DHCP_OPTIONS[@]}" ${1}; then
+ # Enable accepting of RA packets if explicitly told to:
+ if [ -e /proc/sys/net/ipv6 ] && [ "${USE_RA[$i]}" = "yes" ]; then
+ debug_log "${1}: unconditionally accepting IPv6 RA"
+ echo "1" >/proc/sys/net/ipv6/conf/${1}/accept_ra
fi
+ IF_UP=1
+ else
+ info_log "${1}: failed to obtain DHCP lease"
+ debug_log "/sbin/ip address flush dev ${1}"
+ /sbin/ip address flush dev ${1}
+ debug_log "/sbin/ip link set dev ${1} down"
+ /sbin/ip link set dev ${1} down
+ fi
+ fi
+ if [ -e /proc/sys/net/ipv6 ] && [ "${USE_DHCP6[$i]}" != "yes" ] && [ "${USE_SLAAC[$i]}" = "yes" ]; then # configure via SLAAC
+ info_log "${1}: enabling SLAAC"
+ # Enable accepting of RA packets, unless explicitly configured not to:
+ if [ "${USE_RA[$i]}" = "no" ]; then
+ debug_log "${1}: ignoring IPv6 RA"
+ echo "0" >/proc/sys/net/ipv6/conf/${1}/accept_ra
+ else
+ debug_log "${1}: accepting IPv6 RA"
+ echo "1" >/proc/sys/net/ipv6/conf/${1}/accept_ra
+ fi
+ # Enable auto configuration of interfaces:
+ echo "1" >/proc/sys/net/ipv6/conf/${1}/autoconf
+ # Bring the interface up:
+ debug_log "/sbin/ip link set dev ${1} up"
+ /sbin/ip link set dev ${1} up
+ echo "${1}: waiting for router announcement"
+ for ((j = ${SLAAC_TIMEOUT[$i]:=15} * 2; j--;)); do # by default, wait a max of 15 seconds for the interface to configure
+ /sbin/ip -6 address show dynamic dev ${1} 2>/dev/null | grep -Ewq 'inet6' && { IF_UP=1; break; }
+ sleep 0.5
+ done
+ if (($IF_UP != 1)); then
+ echo "${1}: timed out"
+ info_log "${1}: failed to auto configure after ${SLAAC_TIMEOUT[$i]} seconds"
+ debug_log "/sbin/ip address flush dev ${1}"
+ /sbin/ip address flush dev ${1}
+ debug_log "/sbin/ip link set dev ${1} down"
+ /sbin/ip link set dev ${1} down
fi
- else # bring up interface using a static IP address
- if [ -n "${IPADDR[$i]}" ]; then # skip unconfigured interfaces
- # Set up the network card:
- echo "/etc/rc.d/rc.inet1: /sbin/ip address add ${IPADDR[$i]}/${NETMASK[$i]} broadcast + dev ${1}" | $LOGGER
- /sbin/ip address add ${IPADDR[$i]}/${NETMASK[$i]} broadcast + dev ${1}
- if /sbin/ip link show dev ${1} | grep -wq "state DOWN" ; then
- /sbin/ip link set dev ${1} up # Bring up interface
+ fi
+ if [ "${USE_DHCP[$i]}" != "yes" ] && [ -n "${IPADDR[$i]}" ]; then # add a fixed v4 IP to the interface
+ info_log "${1}: setting fixed IPv4 address"
+ if [ -z "${NETMASK[$i]}" ]; then
+ info_log "${1}: no NETMASK set for primary IP ${IPADDR[$i]} - assuming 24 (aka, 255.255.255.0)"
+ NETMASK[$i]="24"
+ fi
+ debug_log "/sbin/ip -4 address add ${IPADDR[$i]}/${NETMASK[$i]#/} broadcast + dev ${1}"
+ if /sbin/ip -4 address add ${IPADDR[$i]}/${NETMASK[$i]#/} broadcast + dev ${1} && \
+ /sbin/ip link set dev ${1} up; then
+ IF_UP=1
+ else
+ info_log "${1}: failed to set IP ${IPADDR[$i]}"
+ debug_log "/sbin/ip address flush dev ${1}"
+ /sbin/ip address flush dev ${1}
+ debug_log "/sbin/ip link set dev ${1} down"
+ /sbin/ip link set dev ${1} down
+ fi
+ fi
+ if [ -e /proc/sys/net/ipv6 ] && [ "${USE_DHCP6[$i]}" != "yes" ] && [ "${USE_SLAAC[$i]}" != "yes" ] && \
+ [ -n "${IP6ADDRS[$i]}" ]; then # add fixed v6 IPs
+ info_log "${1}: setting fixed IPv6 addresses"
+ # IPv6's Duplicate Address Detection (DAD) causes a race condition when bringing up interfaces, as
+ # described here: https://www.agwa.name/blog/post/beware_the_ipv6_dad_race_condition
+ # Disable DAD while bringing up the interface - but note that this means the loss of detection of a
+ # duplicate address. It's a trade off, unfortunately.
+ debug_log "${1}: disabling IPv6 DAD"
+ echo "0" >/proc/sys/net/ipv6/conf/${1}/accept_dad
+ for V6IP in ${IP6ADDRS[$i]}; do
+ IP="${V6IP%/*}"
+ PREFIX="${V6IP#*/}"
+ if [ -z "$PREFIX" ] || [ "$IP" == "$PREFIX" ]; then
+ info_log "${1}: no prefix length set for IP $IP - assuming 64"
+ PREFIX="64"
fi
- # Add extra IP addresses, if defined, to interface
- if [ -n "${IPALIASES[$i]}" ]; then
- num=0
- for ipalias in ${IPALIASES[$i]}; do
- ip="${ipalias%/*}"
- nm="${ipalias#*/}"
- [ -z "$nm" ] || [ "$ip" == "$nm" ] && nm="32"
- /sbin/ip address add ${ip}/${nm} dev ${1} label ${1}:${num}
- num=$(($num + 1))
- done
+ debug_log "/sbin/ip -6 address add $IP/$PREFIX dev ${1}"
+ if /sbin/ip -6 address add $IP/$PREFIX dev ${1} && \
+ /sbin/ip link set dev ${1} up; then
+ # Enable accepting of RA packets if explicitly told to.
+ if [ "${USE_RA[$i]}" = "yes" ]; then
+ debug_log "${1}: unconditionally accepting IPv6 RA"
+ echo "1" >/proc/sys/net/ipv6/conf/${1}/accept_ra
+ fi
+ IF_UP=1
+ else
+ info_log "${1}: failed to set IP $IP"
+ if (($IF_UP != 1)); then # a v4 address was configured, don't flush it
+ debug_log "/sbin/ip address flush dev ${1}"
+ /sbin/ip address flush dev ${1}
+ debug_log "/sbin/ip link set dev ${1} down"
+ /sbin/ip link set dev ${1} down
+ fi
fi
- if [ "${PROMISCUOUS[$i]}" = "yes" ]; then
- # Set promiscuous mode on the interface
- /sbin/ip link set dev ${1} promisc on
+ done
+ # Reset accept_dad back to default now all the IPs are configured:
+ debug_log "${1}: resetting IPv6 DAD to default"
+ cat /proc/sys/net/ipv6/conf/default/accept_dad >/proc/sys/net/ipv6/conf/${1}/accept_dad
+ fi
+ if (($IF_UP == 1)); then # only do further config if the interface came up
+ info_log "${1}: setting fixed IPv4 alias addresses"
+ # Add extra IPv4 addresses to the interface:
+ if [ -n "${IPALIASES[$i]}" ]; then
+ NUM=0
+ for IPALIAS in ${IPALIASES[$i]}; do
+ IP="${IPALIAS%/*}"
+ NM="${IPALIAS#*/}"
+ if [ -z "$NM" ] || [ "$IP" == "$NM" ]; then
+ info_log "${1}: no netmask set for alias IP $IP - assuming 24 (aka, 255.255.255.0)"
+ NM="24"
+ fi
+ debug_log "/sbin/ip -4 address add $IP/$NM broadcast + dev ${1} label ${1}:$NUM"
+ if /sbin/ip -4 address add $IP/$NM broadcast + dev ${1} label ${1}:$NUM; then
+ NUM=$(($NUM + 1))
+ else
+ info_log "${1}: failed to add alias IP $IP"
+ fi
+ done
+ fi
+ # Force an MTU (possibly over-riding that set by DHCP or RA):
+ if [ -n "${MTU[$i]}" ]; then
+ info_log "${1}: setting custom MTU"
+ debug_log "/sbin/ip link set dev ${1} mtu ${MTU[$i]}"
+ if ! /sbin/ip link set dev ${1} mtu ${MTU[$i]}; then
+ info_log "${1}: failed to set MTU"
+ fi
+ fi
+ # Set promiscuous mode on the interface:
+ if [ "${PROMISCUOUS[$i]}" = "yes" ]; then
+ info_log "${1}: setting promiscuous mode"
+ debug_log "/sbin/ip link set dev ${1} promisc on"
+ if ! /sbin/ip link set dev ${1} promisc on; then
+ info_log "${1}: failed to set promiscuous mode"
fi
- else
- debug_log "${1} interface is not configured in /etc/rc.d/rc.inet1.conf"
fi
fi
else
- debug_log "${1} is already up, skipping"
- fi
+ debug_log "${1}: skipping configuration - already up"
+ fi
else
- debug_log "${1} interface does not exist (yet)"
+ debug_log "${1}: skipping configuration - does not exist (yet)"
fi
}
@@ -265,27 +509,61 @@ if_down() {
i=$(($i+1))
done
if [ $i -ge $MAXNICS ]; then
- echo "/etc/rc.d/rc.inet1: skipping ${1}, you might need to increase MAXNICS" | $LOGGER
+ info_log "${1}: skipping - you might need to increase MAXNICS"
return
fi
- if [ -e /sys/class/net/${1%%:*} ]; then
- if [ "${USE_DHCP[$i]}" = "yes" ]; then
- echo "/etc/rc.d/rc.inet1: /sbin/dhcpcd -k -d ${1}" | $LOGGER
- /sbin/dhcpcd -k -d ${1} 2> /dev/null || /sbin/ip link set dev ${1} down
- sleep 1
- else
- echo "/etc/rc.d/rc.inet1: /sbin/ip link set dev ${1} down" | $LOGGER
- /sbin/ip link set dev ${1} down
+ info_log "${1}: de-configuring interface"
+ if [ -e /sys/class/net/${1} ]; then
+ if [ "${USE_DHCP[$i]}" = "yes" ] || [ "${USE_DHCP6[$i]}" = "yes" ]; then # take down dhcpcd
+ info_log "${1}: stopping dhcpcd"
+ # When using -k, dhcpcd requires some command line options to match those used to invoke it:
+ if [ "${USE_DHCP[$i]}" = "yes" ] && [ "${USE_DHCP6[$i]}" != "yes" ]; then # only v4 dhcp
+ DHCP_OPTIONS="-4"
+ elif [ "${USE_DHCP[$i]}" != "yes" ] && [ "${USE_DHCP6[$i]}" = "yes" ]; then # only v6 dhcp
+ DHCP_OPTIONS="-6"
+ fi
+ debug_log "/sbin/dhcpcd $DHCP_OPTIONS -k -d ${1}"
+ /sbin/dhcpcd $DHCP_OPTIONS -k -d ${1} 2>/dev/null || info_log "${1}: failed to stop dhcpcd"
fi
- if [ -x /etc/rc.d/rc.wireless ]; then
- . /etc/rc.d/rc.wireless ${1} stop # Kill wireless daemons if any.
+ # Disable v6 IP auto configuration and RA before trying to clear the IP from the interface:
+ if [ -e /proc/sys/net/ipv6 ]; then
+ debug_log "${1}: disabling IPv6 autoconf and RA"
+ echo "0" >/proc/sys/net/ipv6/conf/${1}/autoconf
+ echo "0" >/proc/sys/net/ipv6/conf/${1}/accept_ra
+ fi
+ sleep 0.5 # allow time for DHCP/RA to unconfigure the interface
+ # Flush any remaining IPs:
+ debug_log "/sbin/ip address flush dev ${1}"
+ /sbin/ip address flush dev ${1}
+ # Bring the interface down:
+ debug_log "/sbin/ip link set dev ${1} down"
+ /sbin/ip link set dev ${1} down
+ # Reset autoconf and accept_ra back to defaults:
+ if [ -e /proc/sys/net/ipv6 ]; then
+ debug_log "${1}: resetting IPv6 autoconf and RA to defaults"
+ cat /proc/sys/net/ipv6/conf/default/autoconf >/proc/sys/net/ipv6/conf/${1}/autoconf
+ cat /proc/sys/net/ipv6/conf/default/accept_ra >/proc/sys/net/ipv6/conf/${1}/accept_ra
fi
# If the interface is a bridge, then destroy it now:
- if [ -n "${BRNICS[$i]}" ]; then
- br_close $i
+ [ -n "${BRNICS[$i]}" ] && br_close $i
+ # If the interface is a bond, then destroy it now.
+ [ -n "${BONDNICS[$i]}" ] && bond_destroy $i
+ # Take down VLAN interface, if configured.
+ if echo "${1}" | grep -Fq .; then
+ info_log "${1}: destroying VLAN interface"
+ debug_log "/sbin/ip link set dev ${1} down"
+ /sbin/ip link set dev ${1} down
+ debug_log "/sbin/ip link delete ${1}"
+ /sbin/ip link delete ${1}
+ if ! /sbin/ip address show scope global dev ${1%.*} 2>/dev/null | grep -Ewq '(inet|inet6)'; then
+ debug_log "/sbin/ip link set dev ${1%.*} down"
+ /sbin/ip link set dev ${1%.*} down
+ fi
+ fi
+ # Kill wireless daemons if any:
+ if [ -x /etc/rc.d/rc.wireless ]; then
+ . /etc/rc.d/rc.wireless ${1} stop
fi
- # Flush the address from the interface:
- ip address flush dev ${1}
fi
}
@@ -295,24 +573,39 @@ if_down() {
# Function to bring up the gateway if there is not yet a default route:
gateway_up() {
- if ! /sbin/ip route show | grep -wq default ; then
- if [ -n "$GATEWAY" ]; then
- echo "/etc/rc.d/rc.inet1: /sbin/ip route add default via ${GATEWAY}" | $LOGGER
- /sbin/ip route add default via ${GATEWAY} | $LOGGER
+ info_log "Configuring gateways"
+ # Bring up the IPv4 gateway:
+ if [ -n "$GATEWAY" ]; then
+ if ! /sbin/ip -4 route show | grep -wq default; then
+ debug_log "/sbin/ip -4 route add default via ${GATEWAY}"
+ /sbin/ip -4 route add default via ${GATEWAY}
+ fi
+ fi
+ # Bring up the IPv6 gateway:
+ if [ -n "$GATEWAY6" ]; then
+ if ! /sbin/ip -6 route show | grep -wq default; then
+ debug_log "/sbin/ip -6 route add default via ${GATEWAY6}"
+ /sbin/ip -6 route add default via ${GATEWAY6}
fi
fi
}
# Function to take down an existing default gateway:
gateway_down() {
- if /sbin/ip route show | grep -wq default ; then
- echo "/etc/rc.d/rc.inet1: /sbin/ip route del default" | $LOGGER
- /sbin/ip route del default
+ info_log "De-configuring gateways"
+ if /sbin/ip -4 route show | grep -wq default ; then
+ debug_log "/sbin/ip -4 route del default"
+ /sbin/ip -4 route del default
+ fi
+ if /sbin/ip -6 route show | grep -wq default ; then
+ debug_log "/sbin/ip -6 route del default"
+ /sbin/ip -6 route del default
fi
}
# Function to start the network:
start() {
+ echo "Starting the network interfaces..."
lo_up
virtif_create
for i in "${IFNAME[@]}" ; do
@@ -323,9 +616,10 @@ start() {
# Function to stop the network:
stop() {
+ echo "Stopping the network interfaces..."
gateway_down
- for i in "${IFNAME[@]}" ; do
- if_down $i
+ for (( i = $MAXNICS - 1; i >= 0; i-- )); do
+ if_down ${IFNAME[$i]}
done
virtif_destroy
lo_down
@@ -336,7 +630,7 @@ stop() {
### MAIN ###
############
-case "$1" in
+case "${1}" in
start|up) # "start" (or "up") brings up all configured interfaces:
start
;;
@@ -354,16 +648,16 @@ lo_stop|lo_down) # Stop the loopback interface:
lo_down
;;
*_start|*_up) # Example: "eth1_start" (or "eth1_up") will start the specified interface 'eth1'
- INTERFACE=$(echo $1 | /bin/cut -d '_' -f 1)
+ INTERFACE=$(echo ${1} | /bin/cut -d '_' -f 1)
if_up $INTERFACE
gateway_up
;;
*_stop|*_down) # Example: "eth0_stop" (or "eth0_down") will stop the specified interface 'eth0'
- INTERFACE=$(echo $1 | /bin/cut -d '_' -f 1)
+ INTERFACE=$(echo ${1} | /bin/cut -d '_' -f 1)
if_down $INTERFACE
;;
*_restart) # Example: "wlan0_restart" will take 'wlan0' down and up again
- INTERFACE=$(echo $1 | /bin/cut -d '_' -f 1)
+ INTERFACE=$(echo ${1} | /bin/cut -d '_' -f 1)
if_down $INTERFACE
sleep 1
if_up $INTERFACE
generated by cgit v1.2.3 (git 2.26.2) at 2024-05-02 15:27:52 +0000