mirror of
https://git.linuxfromscratch.org/lfs.git
synced 2025-01-18 04:57:38 +00:00
130 lines
3.6 KiB
Bash
130 lines
3.6 KiB
Bash
#! /bin/bash
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# This script generates rules for persistent network device naming
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# Data from udev-182 75-persistent-net-generator.rules
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# Updated for udev-197 (DEVICES=en*)
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RULES=/etc/udev/rules.d/70-persistent-net.rules
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DEVICES=$(eval echo /sys/class/net/{en*,eth*,ath*,wlan*[0-9],msh*,ra*,sta*,ctc*,lcs*,hsi*})
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function usage
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{
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echo $msg
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echo "init-net-rules.sh is an LFS-specific script to initialize"
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echo "$RULES"
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exit 1
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}
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declare -A VENDORS_IGNORED
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VENDORS_IGNORED['52:54:00:']="kvm"
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VENDORS_IGNORED['00:0c:29:']="vmware"
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VENDORS_IGNORED['00:50:56:']="vmware"
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VENDORS_IGNORED['00:15:5d:']="hyper-v"
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VENDORS_IGNORED['00:00:00:']="invalid"
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declare -A VENDORS
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VENDORS['02:07:01:']="Interlan, DEC, etc"
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VENDORS['02:60:60:']="3com"
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VENDORS['02:60:8c:']="3Com IBM PC; Imagen. etc"
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VENDORS['02:a0:c9:']="intel"
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VENDORS['02:aa:3c:']="Olivetti"
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VENDORS['02:cf:1f:']="Masscomp, Silicon Graphics, etc"
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VENDORS['02:e0:3b:']="Gigabit"
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VENDORS['02:e6:d3:']="BTI"
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VENDORS['52:54:00:']="Realtek"
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VENDORS['52:54:4c:']="Novell"
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VENDORS['52:54:ab:']="Realtek"
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VENDORS['e2:0c:0f:']="Kingston"
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VENDORS['00:16:3e:']="Xensource"
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function ignore_if
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{
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if [[ "${VENDORS_IGNORED[$VENDOR]}" != "" ]]; then return 0; fi
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if [[ "${VENDORS[$VENDOR]}" != "" ]]; then return 1; fi
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byte2=$(echo $VENDOR | cut -c2)
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if echo $byte2 | grep -q "[2367abef]"; then return 0; fi
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return 1 # Default is to not ignore
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}
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function comment
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{
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# Not implemented
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# SUBSYSTEMS=="pci"
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# export COMMENT="PCI device $attr{vendor}:$attr{device} ($driver)"
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# SUBSYSTEMS=="usb", ATTRS{idVendor}=="?*"
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# export COMMENT="USB device 0x$attr{idVendor}:0x$attr{idProduct} ($driver)"
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# SUBSYSTEMS=="pcmcia",
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# export COMMENT="PCMCIA device $attr{card_id}:$attr{manf_id} ($driver)"
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# SUBSYSTEMS=="ieee1394",
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# export COMMENT="Firewire device $attr{host_id})"
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# ibmveth likes to use "locally administered" MAC addresses
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# DRIVERS=="ibmveth",
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# export COMMENT="ibmveth ($id)"
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# S/390 uses id matches only, do not use MAC address match
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# SUBSYSTEMS=="ccwgroup",
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# export COMMENT="S/390 $driver device at $id",
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# export MATCHID="$id"
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# export MATCHDRV="$driver"
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# export MATCHADDR=""
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# Default
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driver=$(basename $(readlink -f $NIC/device/driver/module))
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export COMMENT="net device ${driver}"
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}
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if ! mountpoint -q /sys; then
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msg="/sys must be mounted"
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usage
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fi
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if ! mountpoint -q /proc; then
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msg="/proc must be mounted"
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usage
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fi
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if [ -e $RULES ]; then
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msg="The rules file already exists"
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usage
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fi
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# Ignore Xen virtual interfaces
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if [ -e /proc/xen ]; then
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msg="The rules file should not be created in the Xen environment"
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usage
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fi
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# Variables used to communicate with write_net_rules:
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# INTERFACE simple interface name
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# MATCHADDR MAC address used for the match
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# MATCHID bus_id used for the match
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# MATCHDRV driver name used for the match
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# MATCHIFTYPE interface type match
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# COMMENT comment to add to the generated rule
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# INTERFACE_NAME requested name supplied by external tool
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# INTERFACE_NEW new interface name returned by rule writer
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for NIC in $DEVICES; do
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IF=${NIC##*/}
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if echo $NIC | grep -q '*' ; then continue; fi
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export INTERFACE=${NIC##*/} # Simple interface name
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export MATCHADDR="$(cat $NIC/address)" # Read MAC address
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VENDOR=$(echo $MATCHADDR | cut -c-9)
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if ignore_if; then continue; fi
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export MATCHDEVID="$(cat $NIC/dev_id)"
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export MATCHIFTYPE="$(cat $NIC/type)" # Read interface type
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comment
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/lib/udev/write_net_rules
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done
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