/usr/local/sbin/ufslabels.sh - Annotate - pfSense - pfSense bugtracker

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root/usr/local/sbin/ufslabels.sh @ 87549136

1	ebadf180	jim-p	#!/bin/sh
2			############################################
3			#
4			# Change fstab to use ufsid and geom labels to avoid relying on device numbers directly.
5			#
6			############################################
7
8			# : cat /etc/fstab
9			# # Device Mountpoint FStype Options Dump Pass#
10			# /dev/ad0s1a / ufs rw 1 1
11			# /dev/ad0s1b none swap sw 0 0
12
13			string_length() {
14			unset LEN
15	8c392069	Renato Botelho	LEN=$(echo -n "${1}" \| /usr/bin/wc -m)
16	ebadf180	jim-p	}
17
18			get_ufsid() {
19			# $1 = device
20			# : /sbin/dumpfs /dev/ad0s1a \| /usr/bin/head -n 2 \| /usr/bin/tail -n 1 \| /usr/bin/cut -f2 -d'[' \| /usr/bin/cut -f1 -d ']' \| /usr/bin/sed -e 's/[[:blank:]]//g'
21			# 51928c99a471c440
22
23			unset UFSID
24	8c392069	Renato Botelho	local _dev="${1}"
25	ebadf180	jim-p
26	8c392069	Renato Botelho	if [ -z "${_dev}" ]; then
27			return
28			fi
29
30			ID_PARTS=$(/sbin/dumpfs /dev/${_dev} \| \
31			/usr/bin/head -n 2 \| \
32			/usr/bin/tail -n 1 \| \
33			/usr/bin/cut -f2 -d'[' \| \
34			/usr/bin/cut -f1 -d ']')
35	ebadf180	jim-p	# " 51110eb0 f288b35d " (note it has more spaces than we need/want)
36	8c392069	Renato Botelho	ID_PART1=$(echo ${ID_PARTS} \| awk '{print $1}')
37	ebadf180	jim-p	# "51110eb0"
38	8c392069	Renato Botelho	ID_PART2=$(echo ${ID_PARTS} \| awk '{print $2}')
39	ebadf180	jim-p	# "f288b35d"
40
41	8c392069	Renato Botelho	if [ -z "${ID_PART1}" -o -z "${ID_PART2}" ]; then
42	ebadf180	jim-p	echo "Invalid ufsid on ${1} (${ID_PARTS}), cannot continue"
43	8c392069	Renato Botelho	exit -1
44	ebadf180	jim-p	fi
45
46			# Safety check to avoid http://www.freebsd.org/cgi/query-pr.cgi?pr=156908
47	8c392069	Renato Botelho	string_length "${ID_PART1}"
48	ebadf180	jim-p	if [ ${LEN} -ne 8 ]; then
49	8c392069	Renato Botelho	ID_PART1=$(printf "%08s" "${ID_PART1}")
50	ebadf180	jim-p	fi
51	8c392069	Renato Botelho	string_length "${ID_PART2}"
52	ebadf180	jim-p	if [ ${LEN} -ne 8 ]; then
53	8c392069	Renato Botelho	ID_PART2=$(printf "%08s" "${ID_PART2}")
54	ebadf180	jim-p	fi
55	8c392069	Renato Botelho	UFSID="${ID_PART1}${ID_PART2}"
56	ebadf180	jim-p	}
57
58	8c392069	Renato Botelho	find_fs_device() {
59	ebadf180	jim-p	unset DEV
60	8c392069	Renato Botelho	DEV=$(/usr/bin/grep -e "[[:blank:]]*${1}[[:blank:]]" ${FSTAB} \| awk '{print $1}')
61	ebadf180	jim-p	DEV=${DEV##/dev/}
62			}
63
64	04c8360c	Renato Botelho	FSTAB=${DESTDIR}/etc/fstab
65	8c392069	Renato Botelho	unset NEED_CHANGES
66	ebadf180	jim-p	cp ${FSTAB} ${FSTAB}.tmp
67
68	04c8360c	Renato Botelho	ALL_FILESYSTEMS=$(/usr/bin/awk '/ufs/ && !(/dev\/mirror\// \|\| /dev\/ufsid\// \|\| /dev\/label\// \|\| /dev\/geom\//) {print $2}' ${DESTDIR}/etc/fstab)
69	ebadf180	jim-p
70			for FS in ${ALL_FILESYSTEMS}
71			do
72	8c392069	Renato Botelho	find_fs_device "${FS}"
73	ebadf180	jim-p	if [ "${DEV}" != "" ]; then
74			get_ufsid ${DEV}
75	8c392069	Renato Botelho	string_length "${UFSID}"
76	ebadf180	jim-p	if [ ${LEN} -ne 16 ]; then
77			echo "Invalid UFS ID for FS ${FS} ($UFSID), skipping"
78			else
79	802956d6	Renato Botelho	/usr/bin/sed -i '' -e "s/${DEV}/ufsid\/${UFSID}/g" ${FSTAB}.tmp
80	8c392069	Renato Botelho	NEED_CHANGES=1
81	ebadf180	jim-p	fi
82			else
83			echo "Unable to find device for ${FS}"
84	8c392069	Renato Botelho	exit -1
85	ebadf180	jim-p	fi
86			echo "FS: ${FS} on device ${DEV} with ufsid ${UFSID}"
87			done
88
89	04c8360c	Renato Botelho	ALL_SWAPFS=$(/usr/bin/awk '/swap/ && !(/dev\/mirror\// \|\| /dev\/ufsid\// \|\| /dev\/label\// \|\| /dev\/geom\//) {print $1}' ${DESTDIR}/etc/fstab)
90	336e899a	jim-p	SWAPNUM=0
91			for SFS in ${ALL_SWAPFS}
92			do
93			DEV=${SFS##/dev/}
94			if [ "${DEV}" != "" ]; then
95			SWAPDEV=${DEV}
96			echo "FS: Swap slice ${SWAPNUM} on device ${SWAPDEV}"
97			if [ "${SWAPDEV}" != "" ]; then
98	802956d6	Renato Botelho	/usr/bin/sed -i '' -e "s/${SWAPDEV}/label\/swap${SWAPNUM}/g" ${FSTAB}.tmp
99	8c392069	Renato Botelho	NEED_CHANGES=1
100	336e899a	jim-p	fi
101	8c392069	Renato Botelho	SWAPNUM=$((SWAPNUM+1))
102	336e899a	jim-p	fi
103			done
104	ebadf180	jim-p
105	8c392069	Renato Botelho	if [ -z "${NEED_CHANGES}" ]; then
106	336e899a	jim-p	echo Nothing to do, all filesystems and swap already use some form of device-independent labels
107	8c392069	Renato Botelho	exit 0
108	ebadf180	jim-p	fi
109
110			echo "===================="
111			echo "Current fstab:"
112			cat ${FSTAB}
113			echo "===================="
114			echo "New fstab:"
115			cat ${FSTAB}.tmp
116
117	735ab503	jim-p	if [ "${1}" = "commit" ]; then
118	ebadf180	jim-p	COMMIT=y
119			else
120			echo "Commit changes? (y/n):"
121			read COMMIT
122			fi
123
124			# Commit changes
125	8c392069	Renato Botelho	if [ "${COMMIT}" = "y" -o "${COMMIT}" = "Y" ]; then
126	336e899a	jim-p
127	8c392069	Renato Botelho	echo "Applying label to swap partition"
128	336e899a	jim-p	SWAPNUM=0
129			for SFS in ${ALL_SWAPFS}
130			do
131	8c392069	Renato Botelho	find_fs_device "${SFS}"
132	336e899a	jim-p	if [ "${DEV}" != "" ]; then
133			SWAPDEV=${DEV}
134	8c392069	Renato Botelho	if [ -n "${SWAPDEV}" ]; then
135			echo "Disabling swap ${SWAPDEV} to apply label"
136			/sbin/swapoff /dev/${SWAPDEV}
137	336e899a	jim-p	/sbin/glabel label swap${SWAPNUM} /dev/${SWAPDEV}
138			fi
139	8c392069	Renato Botelho	SWAPNUM=$((SWAPNUM+1))
140	336e899a	jim-p	fi
141			done
142	ebadf180	jim-p
143			echo "Activating new fstab"
144			/bin/mv -f ${FSTAB} ${FSTAB}.old
145			/bin/mv -f ${FSTAB}.tmp ${FSTAB}
146
147			echo "Re-enabling swap"
148			/sbin/swapon -a 2>/dev/null >/dev/null
149			fi

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