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f5aa586d20
- add ip_create_br: create bride and convert default ethernet interface - add ip_create_tap: create use-mode tap device - add ip_inspect: helper script
52 lines
1.2 KiB
Bash
Executable File
52 lines
1.2 KiB
Bash
Executable File
#!/bin/bash
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# $Id: ip_create_tap 873 2017-04-14 11:56:29Z mueller $
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#
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# Copyright 2017- by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
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# License disclaimer see License.txt in $RETROBASE directory
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#
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# Revision History:
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# Date Rev Version Comment
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# 2017-04-14 873 1.0 Initial version
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# 2017-03-04 858 0.5 First draft
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#
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tap=${1:-tap0}
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if ifconfig | grep -q "${tap}\s*Link"
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then
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echo "tap ${tap} already exists"
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exit 1
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fi
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ifconfig | grep -q "br0\s*Link"
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if [ $? != 0 ]
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then
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echo "ip_create_tap-I: create bridge br0"
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ip_create_br
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fi
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# sanitize PATH, use what sudo has
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export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
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which_ifconfig=$(which ifconfig)
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which_tunctl=$(which tunctl)
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which_brctl=$(which brctl)
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if [[ -z "$which_ifconfig" || -z "$which_tunctl" || -z "$which_brctl" ]]
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then
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echo "ip_create_br-E: ifconfig, brctl, or route not in PATH"
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exit 1
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fi
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# print info so that sudo password prompt is expected
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if [[ $(id -u) -ne 0 ]] ; then echo "ip_create_br-I: requires sudo" ; fi
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sudo $which_tunctl -t ${tap} -u $USER
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sudo $which_ifconfig ${tap} up
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# bridge in the tap device
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sudo $which_brctl addif br0 ${tap}
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sudo $which_ifconfig ${tap} 0.0.0.0
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#
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$which_ifconfig ${tap}
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