82 lines
1.7 KiB
Bash
82 lines
1.7 KiB
Bash
#!/bin/bash
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#
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# Copyright (c) 2015 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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#
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# This utility is a wrapper around mount, to provide a single script
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# with preferred options for NFS mounting. It takes exactly two arguments:
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# - network source path
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# - local destination path
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#
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function show_help()
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{
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cat >&2 << EOF
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$(basename $0):
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Wrapper around "mount" to provide a set of default options for NFS mounts.
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This utility takes exactly two arguments:
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- network source path
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- local destination path
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EOF
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exit 1
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}
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function get_proto()
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{
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local host=$1
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# Check /etc/hosts for the hostname
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local ipaddr=$(cat /etc/hosts | awk -v host=$host '$2 == host {print $1}')
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if [[ "$ipaddr" =~ ^[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*$ ]]
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then
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echo "udp"
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return
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fi
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if [[ "$ipaddr" =~ ^[0-9a-z]*\:[0-9a-z\:]*$ ]]
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then
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echo "udp6"
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return
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fi
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# Try the DNS query
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ipaddr=$(dig +short ANY $host)
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if [[ "$ipaddr" =~ ^[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*$ ]]
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then
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echo "udp"
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return
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fi
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if [[ "$ipaddr" =~ ^[0-9a-z]*\:[0-9a-z\:]*$ ]]
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then
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echo "udp6"
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return
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fi
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# Use default of udp to avoid invalid option
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echo "udp"
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return
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}
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if [[ ${BASH_ARGC[0]} != 2 ]]
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then
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show_help
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fi
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if mountpoint -q $2
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then
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echo "$2 is already mounted. Not mounting."
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exit
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fi
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HOST=`echo $1|awk -F ':' '{print $1}'`
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declare proto=`get_proto $HOST`
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declare -i timeo=30
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declare -i rw_size=1024
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declare DEFAULT_OPTS="timeo=$timeo,proto=$proto,vers=3,rsize=$rw_size,wsize=$rw_size"
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exec mount -t nfs -o $DEFAULT_OPTS $1 $2
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