nldev

NetLink DEVice manager; a lightweight netlink frontend for mdev.
git clone git://r-36.net/nldev
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sddev (1762B)


      1 #!/bin/busybox ash
      2 
      3 # $MDEV
      4 # $ACTION
      5 
      6 blkidstr=$(blkid $(pwd)/${MDEV})
      7 UUID=$(echo -n "$blkidstr" \
      8 	| grep UUID \
      9 	| sed -e 's,.*UUID="\([^"]*\)".*,\1,')
     10 LABEL=$(echo -n "$blkidstr" \
     11 	| grep LABEL \
     12 	| sed -e 's,.*LABEL="\([^"]*\)".*,\1,')
     13 
     14 BLOCK=""
     15 [ -e /sys${DEVPATH}/dev ] && BLOCK=$(cat /sys${DEVPATH}/dev)
     16 
     17 case "$ACTION" in
     18 	add|"")
     19 		if [ -n "${UUID}" ];
     20 		then
     21 			mkdir -p disk/by-uuid
     22 			cd disk/by-uuid
     23 			[ -e "${UUID}" ] && rm -f ${UUID}
     24 			ln -s ../../${MDEV} ${UUID}
     25 			cd ../..
     26 		fi
     27 
     28 		if [ -n "${LABEL}" ];
     29 		then
     30 			mkdir -p disk/by-label
     31 			cd disk/by-uuid
     32 			[ -e "${LABEL}" ] && rm -f ${LABEL}
     33 			ln -s ../../${MDEV} ${LABEL}
     34 			cd ../..
     35 		fi
     36 
     37 		if [ -n "${BLOCK}" ];
     38 		then
     39 			mkdir -p block
     40 			cd block
     41 			[ -e "${BLOCK}" ] && rm -f ${BLOCK}
     42 			ln -s ../${MDEV} ${BLOCK}
     43 			cd ..
     44 		fi
     45 		;;
     46 	remove)
     47 		[ -n "${UUID}" ] && [ -e disk/by-uuid/${UUID} ] \
     48 			&& rm -f disk/by-uuid/${UUID}
     49 		[ -n "${LABEL}" ] && [ -e disk/by-uuid/${LABEL} ] \
     50 			&& rm -f disk/by-uuid/${LABEL}
     51 		[ -n "${BLOCK}" ] && [ -e block/${BLOCK} ] \
     52 			&& rm -f block/${BLOCK}
     53 
     54 		if [ -e disk/by-uuid ];
     55 		then
     56 			cd disk/by-uuid
     57 			SLS=$(ls -l \
     58 				| awk "/..\/..\/${MDEV}/ {print \$9 }")
     59 			for FILE in ${SLS};
     60 			do
     61 				rm -f ${FILE}
     62 			done
     63 			cd ../..
     64 			
     65 			rmdir disk/by-uuid 2>/dev/null
     66 		fi
     67 		if [ -e disk/by-label ];
     68 		then
     69 			cd disk/by-label
     70 			SLS=$(ls -l \
     71 				| awk "/..\/..\/${MDEV}/ {print \$9 }")
     72 			for FILE in ${SLS};
     73 			do
     74 				rm -f ${FILE}
     75 			done
     76 			cd ../..
     77 			
     78 			rmdir disk/by-label 2>/dev/null
     79 		fi
     80 		rmdir disk/ 2>/dev/null
     81 
     82 		if [ -e block ];
     83 		then
     84 			cd block
     85 			SLS=$(ls -l \
     86 				| awk "/..\/${MDEV}/ {print \$9 }")
     87 			for FILE in ${SLS};
     88 			do
     89 				rm -f ${FILE}
     90 			done
     91 			cd ..
     92 			
     93 			rmdir block 2>/dev/null
     94 		fi
     95 		;;
     96 esac
     97 
     98 exit 0
     99