| 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 |
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| 17 | if [ -z ${1} ] ; then
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| 18 | log_failure_msg "No ifconfig file specified"
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| 19 | exit 1
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| 20 | fi
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| 21 | IFCONFIG=$1
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| 22 | . ${IFCONFIG}
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| 23 |
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| 24 | if [ -z "${IP}" ]; then
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| 25 | log_failure_msg "\nIP variable missing from ${IFCONFIG}, cannot continue."
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| 26 | exit 1
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| 27 | fi
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| 28 |
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| 29 | # If there are multiple ${PHYS}, then use the first.
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| 30 | test -z $IPV4_IF && IPV4_IF="$(echo ${PHYS} | awk '{print $1}')"
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| 31 |
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| 32 | if [ -z "${PREFIX}" -a -z "${PEER}" ]; then
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| 33 | log_warning_msg "\nPREFIX variable missing from ${IFCONFIG}, assuming 24."
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| 34 | PREFIX=24
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| 35 | args="${args} ${IP}/${PREFIX}"
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| 36 |
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| 37 | elif [ -n "${PREFIX}" -a -n "${PEER}" ]; then
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| 38 | log_failure_msg "\nPREFIX and PEER both specified in ${IFCONFIG}, cannot continue."
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| 39 | exit 1
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| 40 |
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| 41 | elif [ -n "${PREFIX}" ]; then
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| 42 | args="${args} ${IP}/${PREFIX}"
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| 43 |
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| 44 | elif [ -n "${PEER}" ]; then
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| 45 | args="${args} ${IP} peer ${PEER}"
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| 46 | fi
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| 47 |
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| 48 | if [ -n "${BROADCAST}" ]; then
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| 49 | args="${args} broadcast ${BROADCAST}"
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| 50 | fi
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| 51 |
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| 52 | case "${2}" in
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| 53 | up)
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| 54 | if [ "$(ip addr show ${IPV4_IF} 2>/dev/null | grep ${IP})" == "" ]; then
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| 55 |
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| 56 | # Cosmetic output not needed for multiple services
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| 57 | if ! $(echo ${SERVICE} | grep -q " "); then
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| 58 | log_info_msg2 "\n" # Terminate the previous message
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| 59 | fi
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| 60 |
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| 61 | log_info_msg "Adding IPv4 address ${IP} to the ${IPV4_IF} interface..."
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| 62 | ip addr add ${args} dev ${IPV4_IF}
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| 63 | evaluate_retval
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| 64 |
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| 65 | if [ -n "${GATEWAY}" ]; then
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| 66 | if ip route | grep -q default; then
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| 67 | log_warning_msg "\nGateway already setup; skipping."
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| 68 | else
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| 69 | log_info_msg "Setting up default gateway..."
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| 70 | ip route add default via ${GATEWAY} dev ${IPV4_IF}
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| 71 | evaluate_retval
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| 72 | fi
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| 73 | fi
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| 74 | else
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| 75 | msg="Cannot add IPv4 address ${IP} to ${IPV4_IF}. Already present."
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| 76 | log_warning_msg "$msg"
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| 77 | fi
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| 78 | ;;
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| 79 |
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| 80 | down)
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| 81 | if [ "$(ip addr show ${IPV4_IF} 2>/dev/null | grep ${IP})" != "" ]; then
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| 82 | log_info_msg "Removing IPv4 address ${IP} from the ${IPV4_IF} interface..."
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| 83 | ip addr del ${args} dev ${IPV4_IF}
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| 84 | evaluate_retval
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| 85 | fi
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| 86 |
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| 87 | if [ -n "${GATEWAY}" ]; then
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| 88 | # Only remove the gateway if ther are no remaining ipv4 addresses
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| 89 | if [ "$(ip addr show ${IPV4_IF} 2>/dev/null | grep 'inet ')" != "" ]; then
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| 90 | log_info_msg "Removing default gateway..."
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| 91 | ip route del default
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| 92 | evaluate_retval
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| 93 | fi
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| 94 | fi
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| 95 | ;;
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| 96 |
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| 97 | *)
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| 98 | echo "Usage: ${0} <interface> {up|down}"
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| 99 | exit 1
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| 100 | ;;
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| 101 | esac
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| 102 |
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| 103 | # End /lib/services/ipv4-static
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