48 lines
1.4 KiB
Bash
Executable File
48 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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# vim: set ts=4 et:
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[ -x /usr/sbin/nvme ] || exit
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PROC="$(basename "$0")[$$]"
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log() {
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FACILITY="kern.$1"
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shift
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logger -s -p "$FACILITY" -t "$PROC" "$@"
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}
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raw_ebs_alias() {
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/usr/sbin/nvme id-ctrl "/dev/$BASE" -b 2>/dev/null | dd bs=32 skip=96 count=1 2>/dev/null
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}
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case $ACTION in
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add|"")
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BASE=$(echo "$MDEV" | sed -re 's/^(nvme[0-9]+n[0-9]+).*/\1/')
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PART=$(echo "$MDEV" | sed -re 's/nvme[0-9]+n[0-9]+p?//g')
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MAXTRY=50
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TRY=0
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until [ -n "$EBS" ]; do
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EBS=$(raw_ebs_alias | sed -nre '/^(\/dev\/)?(s|xv)d[a-z]{1,2} /p' | tr -d ' ')
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[ -n "$EBS" ] && break
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TRY=$((TRY + 1))
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if [ $TRY -eq $MAXTRY ]; then
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log err "Failed to get EBS volume alias for $MDEV after $MAXTRY attempts ($(raw_ebs_alias))"
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exit 1
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fi
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sleep 0.1
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done
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# remove any leading '/dev/', 'sd', or 'xvd', and append partition
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EBS=${EBS#/dev/}
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EBS=${EBS#sd}
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EBS=${EBS#xvd}$PART
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ln -sf "$MDEV" "sd$EBS" && log notice "Added sd$EBS symlink for $MDEV"
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ln -sf "$MDEV" "xvd$EBS" && log notice "Added xvd$EBS symlink for $MDEV"
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;;
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remove)
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for TARGET in sd* xvd*
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do
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[ "$(readlink "$TARGET" 2>/dev/null)" = "$MDEV" ] && rm -f "$TARGET" && log notice "Removed $TARGET symlink for $MDEV"
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done
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;;
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esac
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