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author | davidovski <david@davidovski.xyz> | 2022-03-29 23:36:22 +0100 |
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committer | davidovski <david@davidovski.xyz> | 2022-03-29 23:36:22 +0100 |
commit | df88860947686a5e6507fc5d60ff33eac1158c6b (patch) | |
tree | d1dc7f2f003b08afb6d45f7170d7a0dd353060d3 /xi/lib/services/ipv4-static | |
parent | 33d239ecb3d66db2b005afbe68a7029c3f2d2ee0 (diff) |
Diffstat (limited to 'xi/lib/services/ipv4-static')
-rwxr-xr-x | xi/lib/services/ipv4-static | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/xi/lib/services/ipv4-static b/xi/lib/services/ipv4-static new file mode 100755 index 0000000..7021c29 --- /dev/null +++ b/xi/lib/services/ipv4-static @@ -0,0 +1,81 @@ +#!/bin/sh +######################################################################## +# Begin /lib/services/ipv4-static +# +# Description : IPV4 Static Boot Script +# +# Authors : Nathan Coulson - nathan@linuxfromscratch.org +# Kevin P. Fleming - kpfleming@linuxfromscratch.org +# Update : Bruce Dubbs - bdubbs@linuxfromscratch.org +# +# Version : LFS 7.0 +# +######################################################################## + +. /lib/lsb/init-functions +. ${IFCONFIG} + +if [ -z "${IP}" ]; then + log_failure_msg "\nIP variable missing from ${IFCONFIG}, cannot continue." + exit 1 +fi + +if [ -z "${PREFIX}" -a -z "${PEER}" ]; then + log_warning_msg "\nPREFIX variable missing from ${IFCONFIG}, assuming 24." + PREFIX=24 + args="${args} ${IP}/${PREFIX}" + +elif [ -n "${PREFIX}" -a -n "${PEER}" ]; then + log_failure_msg "\nPREFIX and PEER both specified in ${IFCONFIG}, cannot continue." + exit 1 + +elif [ -n "${PREFIX}" ]; then + args="${args} ${IP}/${PREFIX}" + +elif [ -n "${PEER}" ]; then + args="${args} ${IP} peer ${PEER}" +fi + +if [ -n "${LABEL}" ]; then + args="${args} label ${LABEL}" +fi + +if [ -n "${BROADCAST}" ]; then + args="${args} broadcast ${BROADCAST}" +fi + +case "${2}" in + up) + if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" = "" ]; then + log_info_msg "Adding IPv4 address ${IP} to the ${1} interface..." + ip addr add ${args} dev ${1} + evaluate_retval + else + log_warning_msg "Cannot add IPv4 address ${IP} to ${1}. Already present." + fi + ;; + + down) + if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" != "" ]; then + log_info_msg "Removing IPv4 address ${IP} from the ${1} interface..." + ip addr del ${args} dev ${1} + evaluate_retval + fi + + if [ -n "${GATEWAY}" ]; then + # Only remove the gateway if there are no remaining ipv4 addresses + if [ "$(ip addr show ${1} 2>/dev/null | grep 'inet ')" != "" ]; then + log_info_msg "Removing default gateway..." + ip route del default + evaluate_retval + fi + fi + ;; + + *) + echo "Usage: ${0} [interface] {up|down}" + exit 1 + ;; +esac + +# End /lib/services/ipv4-static |