87 lines
2.4 KiB
Bash
Executable file
87 lines
2.4 KiB
Bash
Executable file
#!/bin/sh
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########################################################################
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# Begin /lib/services/ipv4-static
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#
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# Description : IPV4 Static Boot Script
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#
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# Authors : Nathan Coulson - nathan@linuxfromscratch.org
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# Kevin P. Fleming - kpfleming@linuxfromscratch.org
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# Update : Bruce Dubbs - bdubbs@linuxfromscratch.org
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#
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# Version : LFS 7.0
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#
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########################################################################
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. /lib/lsb/init-functions
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. ${IFCONFIG}
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if [ -z "${IP}" ]; then
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log_failure_msg "\nIP variable missing from ${IFCONFIG}, cannot continue."
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exit 1
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fi
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if [ -z "${PREFIX}" -a -z "${PEER}" ]; then
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log_warning_msg "\nPREFIX variable missing from ${IFCONFIG}, assuming 24."
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PREFIX=24
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args="${args} ${IP}/${PREFIX}"
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elif [ -n "${PREFIX}" -a -n "${PEER}" ]; then
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log_failure_msg "\nPREFIX and PEER both specified in ${IFCONFIG}, cannot continue."
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exit 1
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elif [ -n "${PREFIX}" ]; then
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args="${args} ${IP}/${PREFIX}"
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elif [ -n "${PEER}" ]; then
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args="${args} ${IP} peer ${PEER}"
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fi
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if [ -n "${LABEL}" ]; then
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args="${args} label ${LABEL}"
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fi
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if [ -n "${BROADCAST}" ]; then
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args="${args} broadcast ${BROADCAST}"
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fi
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case "${2}" in
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up)
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if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" = "" ]; then
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# Cosmetic output not needed for multiple services
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if ! $(echo ${SERVICE} | grep -q " "); then
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log_info_msg2 "\n" # Terminate the previous message
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fi
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log_info_msg "Adding IPv4 address ${IP} to the ${1} interface..."
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ip addr add ${args} dev ${1}
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evaluate_retval
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else
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log_warning_msg "Cannot add IPv4 address ${IP} to ${1}. Already present."
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fi
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;;
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down)
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if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" != "" ]; then
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log_info_msg "Removing IPv4 address ${IP} from the ${1} interface..."
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ip addr del ${args} dev ${1}
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evaluate_retval
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fi
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if [ -n "${GATEWAY}" ]; then
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# Only remove the gateway if there are no remaining ipv4 addresses
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if [ "$(ip addr show ${1} 2>/dev/null | grep 'inet ')" != "" ]; then
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log_info_msg "Removing default gateway..."
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ip route del default
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evaluate_retval
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fi
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fi
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;;
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*)
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echo "Usage: ${0} [interface] {up|down}"
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exit 1
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;;
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esac
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# End /lib/services/ipv4-static
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