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Thu Jun 30 20:26:57 UTC 2016 Slackware 14.2 x86_64 stable is released! The long development cycle (the Linux community has lately been living in "interesting times", as they say) is finally behind us, and we're proud to announce the release of Slackware 14.2. The new release brings many updates and modern tools, has switched from udev to eudev (no systemd), and adds well over a hundred new packages to the system. Thanks to the team, the upstream developers, the dedicated Slackware community, and everyone else who pitched in to help make this release a reality. The ISOs are off to be replicated, a 6 CD-ROM 32-bit set and a dual-sided 32-bit/64-bit x86/x86_64 DVD. Please consider supporting the Slackware project by picking up a copy from store.slackware.com. We're taking pre-orders now, and offer a discount if you sign up for a subscription. Have fun! :-)
320 lines
11 KiB
Bash
320 lines
11 KiB
Bash
#! /bin/sh
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# /etc/rc.d/rc.inet1
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# This script is used to bring up the various network interfaces.
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#
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# @(#)/etc/rc.d/rc.inet1 10.2 Sun Jul 24 12:45:56 PDT 2005 (pjv)
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############################
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# READ NETWORK CONFIG FILE #
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############################
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# Get the configuration information from /etc/rc.d/rc.inet1.conf:
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. /etc/rc.d/rc.inet1.conf
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###########
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# LOGGING #
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###########
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# If possible, log events in /var/log/messages:
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if [ -f /var/run/syslogd.pid -a -x /usr/bin/logger ]; then
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LOGGER=/usr/bin/logger
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else # output to stdout/stderr:
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LOGGER=/bin/cat
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fi
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############################
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# DETERMINE INTERFACE LIST #
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############################
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# Compose a list of interfaces from /etc/rc.d/rc.inet1.conf (with a maximum
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# of 6 interfaces, but you can easily enlarge the interface limit
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# - send me a picture of such a box :-).
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# If a value for IFNAME[n] is not set, we assume it is an eth'n' interface.
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# This way, the new script is compatible with older rc.inet1.conf files.
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# The IFNAME array will be used to determine which interfaces to bring up/down.
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MAXNICS=${MAXNICS:-6}
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i=0
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while [ $i -lt $MAXNICS ];
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do
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IFNAME[$i]=${IFNAME[$i]:=eth${i}}
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i=$(($i+1))
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done
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if [ "$DEBUG_ETH_UP" = "yes" ]; then
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echo "/etc/rc.d/rc.inet1: List of interfaces: '${IFNAME[@]}'" | $LOGGER
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fi
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######################
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# LOOPBACK FUNCTIONS #
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######################
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# Function to bring up the loopback interface. If loopback is
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# already up, do nothing.
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lo_up() {
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if grep lo: /proc/net/dev 1> /dev/null ; then
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if ! /sbin/ifconfig | grep "^lo" 1> /dev/null ; then
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echo "/etc/rc.d/rc.inet1: /sbin/ifconfig lo 127.0.0.1" | $LOGGER
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/sbin/ifconfig lo 127.0.0.1
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echo "/etc/rc.d/rc.inet1: /sbin/route add -net 127.0.0.0 netmask 255.0.0.0 lo" | $LOGGER
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/sbin/route add -net 127.0.0.0 netmask 255.0.0.0 lo
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fi
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fi
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}
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# Function to take down the loopback interface:
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lo_down() {
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if grep lo: /proc/net/dev 1> /dev/null ; then
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echo "/etc/rc.d/rc.inet1: /sbin/ifconfig lo down" | $LOGGER
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/sbin/ifconfig lo down
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fi
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}
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#######################
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# INTERFACE FUNCTIONS #
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#######################
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# Function to assemble a bridge interface.
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br_open() {
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# argument is 'i' - the position of this interface in the IFNAME array.
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/sbin/brctl addbr ${IFNAME[$1]}
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for BRIF in $(echo ${BRNICS[$1]}); do
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/sbin/ifconfig $BRIF down
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/sbin/ifconfig $BRIF 0.0.0.0 promisc up
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/sbin/brctl addif ${IFNAME[$1]} $BRIF
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done
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}
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# Function to disassemble a bridge interface.
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br_close() {
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# argument is 'i' - the position of this interface in the IFNAME array.
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#for BRIF in $(echo ${BRNICS[$1]}); do
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for BRIF in $(ls --indicator-style=none /sys/class/net/${IFNAME[$1]}/brif/)
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do
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/sbin/brctl delif ${IFNAME[$1]} $BRIF
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done
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/sbin/ifconfig ${IFNAME[$1]} down
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/sbin/brctl delbr ${IFNAME[$1]}
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}
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# Function to bring up a network interface. If the interface is
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# already up or does not yet exist (perhaps because the kernel driver
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# is not loaded yet), do nothing.
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if_up() {
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# Determine position 'i' of this interface in the IFNAME array:
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i=0
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while [ $i -lt $MAXNICS ]; do
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[ "${IFNAME[$i]}" = "${1}" ] && break
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i=$(($i+1))
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done
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# If the interface is a bridge, then create it first:
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[ -n "${BRNICS[$i]}" ] && br_open $i
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# If the interface isn't in the kernel yet (but there's an alias for it in
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# modules.conf), then it should be loaded first:
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if ! grep `echo ${1}: | cut -f 1 -d :`: /proc/net/dev 1> /dev/null ; then # no interface yet
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if /sbin/modprobe -c | grep -v "^#" | grep -w "alias ${1}" | grep -vw "alias ${1} off" > /dev/null ; then
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echo "/etc/rc.d/rc.inet1: /sbin/modprobe ${1}" | $LOGGER
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/sbin/modprobe ${1}
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fi
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fi
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if grep `echo ${1}: | cut -f 1 -d :`: /proc/net/dev 1> /dev/null ; then # interface exists
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if ! /sbin/ifconfig | grep -w "${1}" 1>/dev/null || \
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! /sbin/ifconfig ${1} | grep -w inet 1> /dev/null ; then # interface not up or not configured
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if [ ! "${HWADDR[$i]}" = "" ]; then # Set hardware address _before_ the interface goes up:
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echo "/etc/rc.d/rc.inet1: /sbin/ifconfig ${1} hw ether ${HWADDR[$i]}" | $LOGGER
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/sbin/ifconfig ${1} hw ether ${HWADDR[$i]}
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fi
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if [ ! "${MTU[$i]}" = "" ]; then # Set MTU to something else than 1500
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echo "/etc/rc.d/rc.inet1: /sbin/ifconfig ${1} mtu ${MTU[$i]}" | $LOGGER
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/sbin/ifconfig ${1} mtu ${MTU[$i]}
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fi
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if [ -x /etc/rc.d/rc.wireless ]; then
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. /etc/rc.d/rc.wireless ${1} start # Initialize any wireless parameters
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fi
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if [ "${USE_DHCP[$i]}" = "yes" ]; then # use DHCP to bring interface up
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# Clear DHCP_OPTIONS before adding new options to it:
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unset DHCP_OPTIONS
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# Set DHCP_OPTIONS for this interface:
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[ ${DHCP_HOSTNAME[$i]} ] && DHCP_OPTIONS="-h ${DHCP_HOSTNAME[$i]}"
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[ "${DHCP_KEEPRESOLV[$i]}" = "yes" ] && DHCP_OPTIONS="$DHCP_OPTIONS -C resolv.conf"
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[ "${DHCP_KEEPNTP[$i]}" = "yes" ] && DHCP_OPTIONS="$DHCP_OPTIONS -C ntp.conf"
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[ "${DHCP_KEEPGW[$i]}" = "yes" ] && DHCP_OPTIONS="$DHCP_OPTIONS -G"
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[ "${DHCP_DEBUG[$i]}" = "yes" ] && DHCP_OPTIONS="$DHCP_OPTIONS -d"
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[ "${DHCP_NOIPV4LL[$i]}" = "yes" ] && DHCP_OPTIONS="$DHCP_OPTIONS -L"
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[ ${DHCP_IPADDR[$i]} ] && DHCP_OPTIONS="$DHCP_OPTIONS -r ${DHCP_IPADDR[$i]}"
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echo "Polling for DHCP server on interface ${1}:"
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# If you set a timeout, you get one, even if the kernel doesn't think that
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# your device is connected, in case /sys isn't right (which it usually isn't
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# except right after the device is loaded, when it usually is):
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#### (start commented out)
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# This is deactivated for now since the kernel has been returning incorrect
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# results concerning whether the interface carrier is detected.
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#if [ "${DHCP_TIMEOUT[$i]}" = "" ]; then
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# ifconfig ${1} up && sleep 1
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# CONNSTATUS="$(cat /sys/class/net/${1}/carrier 2> /dev/null)"
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# ifconfig ${1} down
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# if [ "$CONNSTATUS" = "0" ]; then
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# # The kernel has just told us the cable isn't even plugged in, but we will
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# # give any DHCP server a short chance to reply anyway:
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# echo "No carrier detected on ${1}. Reducing DHCP timeout to 10 seconds."
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# DHCP_TIMEOUT[$i]=10
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# fi
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#fi
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#### (end commented out)
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# 10 seconds should be a reasonable default DHCP timeout. 30 was too much.
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echo "/etc/rc.d/rc.inet1: /sbin/dhcpcd -t ${DHCP_TIMEOUT[$i]:-10} ${DHCP_OPTIONS} ${1}" | $LOGGER
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/sbin/dhcpcd -t ${DHCP_TIMEOUT[$i]:-10} ${DHCP_OPTIONS} ${1}
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else # bring up interface using a static IP address
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if [ ! "${IPADDR[$i]}" = "" ]; then # skip unconfigured interfaces
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# Determine broadcast address from the IP address and netmask:
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BROADCAST[$i]=`/bin/ipmask ${NETMASK[$i]} ${IPADDR[$i]}|cut -f1 -d' '`
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# Set up the network card:
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echo "/etc/rc.d/rc.inet1: /sbin/ifconfig ${1} ${IPADDR[$i]} broadcast ${BROADCAST[$i]} netmask ${NETMASK[$i]}" | $LOGGER
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/sbin/ifconfig ${1} ${IPADDR[$i]} broadcast ${BROADCAST[$i]} netmask ${NETMASK[$i]}
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else
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if [ "$DEBUG_ETH_UP" = "yes" ]; then
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echo "/etc/rc.d/rc.inet1: ${1} interface is not configured in /etc/rc.d/rc.inet1.conf" | $LOGGER
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fi
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fi
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fi
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else
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if [ "$DEBUG_ETH_UP" = "yes" ]; then
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echo "/etc/rc.d/rc.inet1: ${1} is already up, skipping" | $LOGGER
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fi
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fi
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else
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if [ "$DEBUG_ETH_UP" = "yes" ]; then
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echo "/etc/rc.d/rc.inet1: ${1} interface does not exist (yet)" | $LOGGER
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fi
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fi
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}
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# Function to take down a network interface:
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if_down() {
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# Determine position 'i' of this interface in the IFNAME array:
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i=0
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while [ $i -lt $MAXNICS ]; do
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[ "${IFNAME[$i]}" = "${1}" ] && break
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i=$(($i+1))
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done
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if grep `echo ${1}: | cut -f 1 -d :`: /proc/net/dev 1> /dev/null ; then
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if [ "${USE_DHCP[$i]}" = "yes" ]; then
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echo "/etc/rc.d/rc.inet1: /sbin/dhcpcd -k -d ${1}" | $LOGGER
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/sbin/dhcpcd -k -d ${1} 2> /dev/null || /sbin/ifconfig ${1} down
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sleep 1
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else
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echo "/etc/rc.d/rc.inet1: /sbin/ifconfig ${1} down" | $LOGGER
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/sbin/ifconfig ${1} down
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fi
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if [ -x /etc/rc.d/rc.wireless ]; then
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. /etc/rc.d/rc.wireless ${1} stop # Kill wireless daemons if any.
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fi
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# If the interface is a bridge, then destroy it now:
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if [ -n "${BRNICS[$i]}" ]; then
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br_close $i
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fi
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fi
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}
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#####################
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# GATEWAY FUNCTIONS #
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#####################
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# Function to bring up the gateway if there is not yet a default route:
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gateway_up() {
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if ! /sbin/route -n | grep "^0.0.0.0" 1> /dev/null ; then
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if [ ! "$GATEWAY" = "" ]; then
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echo "/etc/rc.d/rc.inet1: /sbin/route add default gw ${GATEWAY} metric 1" | $LOGGER
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/sbin/route add default gw ${GATEWAY} metric 1 2>&1 | $LOGGER
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fi
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fi
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}
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# Function to take down an existing default gateway:
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gateway_down() {
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if /sbin/route -n | grep "^0.0.0.0" 1> /dev/null ; then
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echo "/etc/rc.d/rc.inet1: /sbin/route del default" | $LOGGER
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/sbin/route del default
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fi
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}
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# Function to start the network:
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start() {
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lo_up
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for i in ${IFNAME[@]} ; do
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if_up $i
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done
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gateway_up
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}
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# Function to stop the network:
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stop() {
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gateway_down
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for i in ${IFNAME[@]} ; do
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if_down $i
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done
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lo_down
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}
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############
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### MAIN ###
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############
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case "$1" in
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'start') # "start" brings up all configured interfaces:
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start
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;;
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'stop') # "stop" takes down all configured interfaces:
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stop
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;;
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'restart') # "restart" restarts the network:
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stop
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start
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;;
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'lo_start') # Start the loopback interface:
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lo_up
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;;
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*_start) # Example: "eth1_start" will start the specified interface 'eth1'
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INTERFACE=`echo $1 | /bin/cut -d '_' -f 1`
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if_up $INTERFACE
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gateway_up
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;;
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'lo_stop') # Stop the loopback interface:
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lo_down
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;;
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*_stop) # Example: "eth0_stop" will stop the specified interface 'eth0'
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INTERFACE=`echo $1 | /bin/cut -d '_' -f 1`
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if_down $INTERFACE
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;;
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*_restart) # Example: "wlan0_restart" will take 'wlan0' down and up again
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INTERFACE=`echo $1 | /bin/cut -d '_' -f 1`
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if_down $INTERFACE
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sleep 1
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if_up $INTERFACE
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gateway_up
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;;
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'up') # "up" does the same thing as "start"
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start
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;;
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'down') # "down" does the same thing as "stop"
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stop
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;;
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'lo_up') # Start the loopback interface:
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lo_up
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;;
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*_up) # "*_up" does the same thing as "*_start"
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INTERFACE=`echo $1 | /bin/cut -d '_' -f 1`
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if_up $INTERFACE
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gateway_up
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;;
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'lo_down') # Stop the loopback interface:
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lo_down
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;;
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*_down) # "*_down" does the same thing as "*_stop"
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INTERFACE=`echo $1 | /bin/cut -d '_' -f 1`
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if_down $INTERFACE
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;;
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*) # The default is to bring up all configured interfaces:
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start
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esac
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# End of /etc/rc.d/rc.inet1
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