| 1 | #!/bin/sh
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| 2 | ########################################################################
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| 3 | # Begin /lib/services/ipv4-static
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| 4 | #
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| 5 | # Description : IPV4 Static Boot Script
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| 6 | #
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| 7 | # Authors : Nathan Coulson - nathan@linuxfromscratch.org
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| 8 | # Kevin P. Fleming - kpfleming@linuxfromscratch.org
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| 9 | # Update : Bruce Dubbs - bdubbs@linuxfromscratch.org
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| 10 | #
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| 11 | # Version : LFS 7.0
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| 12 | #
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| 13 | ########################################################################
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| 14 |
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| 15 | . /lib/lsb/init-functions
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| 16 | . ${IFCONFIG}
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| 17 |
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| 18 | if [ -z "${IP}" ]; then
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| 19 | log_failure_msg "\nIP variable missing from ${IFCONFIG}, cannot continue."
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| 20 | exit 1
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| 21 | fi
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| 22 |
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| 23 | if [ -z "${PREFIX}" -a -z "${PEER}" ]; then
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| 24 | log_warning_msg "\nPREFIX variable missing from ${IFCONFIG}, assuming 24."
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| 25 | PREFIX=24
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| 26 | args="${args} ${IP}/${PREFIX}"
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| 27 |
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| 28 | elif [ -n "${PREFIX}" -a -n "${PEER}" ]; then
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| 29 | log_failure_msg "\nPREFIX and PEER both specified in ${IFCONFIG}, cannot continue."
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| 30 | exit 1
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| 31 |
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| 32 | elif [ -n "${PREFIX}" ]; then
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| 33 | args="${args} ${IP}/${PREFIX}"
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| 34 |
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| 35 | elif [ -n "${PEER}" ]; then
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| 36 | args="${args} ${IP} peer ${PEER}"
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| 37 | fi
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| 38 |
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| 39 | if [ -n "${LABEL}" ]; then
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| 40 | args="${args} label ${LABEL}"
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| 41 | fi
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| 42 |
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| 43 | if [ -n "${BROADCAST}" ]; then
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| 44 | args="${args} broadcast ${BROADCAST}"
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| 45 | fi
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| 46 |
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| 47 | case "${2}" in
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| 48 | up)
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| 49 | if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" = "" ]; then
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| 50 | log_info_msg "Adding IPv4 address ${IP} to the ${1} interface..."
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| 51 | ip addr add ${args} dev ${1}
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| 52 | evaluate_retval
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| 53 | else
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| 54 | log_warning_msg "Cannot add IPv4 address ${IP} to ${1}. Already present."
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| 55 | fi
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| 56 | ;;
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| 57 |
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| 58 | down)
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| 59 | if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" != "" ]; then
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| 60 | log_info_msg "Removing IPv4 address ${IP} from the ${1} interface..."
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| 61 | ip addr del ${args} dev ${1}
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| 62 | evaluate_retval
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| 63 | fi
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| 64 |
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| 65 | if [ -n "${GATEWAY}" ]; then
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| 66 | # Only remove the gateway if there are no remaining ipv4 addresses
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| 67 | if [ "$(ip addr show ${1} 2>/dev/null | grep 'inet ')" != "" ]; then
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| 68 | log_info_msg "Removing default gateway..."
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| 69 | ip route del default
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| 70 | evaluate_retval
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| 71 | fi
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| 72 | fi
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| 73 | ;;
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| 74 |
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| 75 | *)
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| 76 | echo "Usage: ${0} [interface] {up|down}"
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| 77 | exit 1
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| 78 | ;;
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| 79 | esac
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| 80 |
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| 81 | # End /lib/services/ipv4-static
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