Gentoo Archives: gentoo-commits

From: "Mike Frysinger (vapier)" <vapier@g.o>
To: gentoo-commits@l.g.o
Subject: [gentoo-commits] gentoo-x86 commit in sys-fs/cryptsetup/files: 1.1.3-dm-crypt-start.sh 1.1.3-dm-crypt-stop.sh
Date: Thu, 30 Sep 2010 01:35:33
Message-Id: 20100930013524.26BAD20051@flycatcher.gentoo.org
1 vapier 10/09/30 01:35:24
2
3 Added: 1.1.3-dm-crypt-start.sh 1.1.3-dm-crypt-stop.sh
4 Log:
5 Update by Wolfram to let the init.d scripts be multiplexed #338876.
6
7 (Portage version: 2.2_rc86/cvs/Linux x86_64)
8
9 Revision Changes Path
10 1.1 sys-fs/cryptsetup/files/1.1.3-dm-crypt-start.sh
11
12 file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-fs/cryptsetup/files/1.1.3-dm-crypt-start.sh?rev=1.1&view=markup
13 plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-fs/cryptsetup/files/1.1.3-dm-crypt-start.sh?rev=1.1&content-type=text/plain
14
15 Index: 1.1.3-dm-crypt-start.sh
16 ===================================================================
17 # /lib/rcscripts/addons/dm-crypt-start.sh
18
19 # For backwards compatability with baselayout < 1.13.0
20 : ${SVCNAME:=${myservice}} #174256
21 dm_crypt_execute_checkfs() {
22 dm_crypt_execute_dmcrypt
23 }
24
25 dm_crypt_execute_volumes() {
26 dm_crypt_execute_dmcrypt
27 }
28
29 # Setup mappings for an individual target/swap
30 # Note: This relies on variables localized in the main body below.
31 dm_crypt_execute_dmcrypt() {
32 local dev ret mode foo
33 # some colors
34 local red='\x1b[31;01m' green='\x1b[32;01m' off='\x1b[0;0m'
35
36 if [ -n "$target" ]; then
37 # let user set options, otherwise leave empty
38 : ${options:=' '}
39 elif [ -n "$swap" ]; then
40 einfo "Checking swap is not LUKS"
41 cryptsetup isLuks ${source} 2>/dev/null
42 foo="$?"
43 if [ "${foo}" -eq 0 ]; then
44 ewarn "The swap you have defined is a LUKS partition. Aborting crypt-swap setup."
45 return
46 fi
47 target=${swap}
48 # swap contents do not need to be preserved between boots, luks not required.
49 # suspend2 users should have initramfs's init handling their swap partition either way.
50 : ${options:='-c aes -h sha1 -d /dev/urandom'}
51 : ${pre_mount:='mkswap ${dev}'}
52 else
53 return
54 fi
55 if [ -z "$source" ] && [ ! -e "$source" ]; then
56 ewarn "source \"${source}\" for ${target} missing, skipping..."
57 return
58 fi
59
60 if [[ -n ${loop_file} ]] ; then
61 dev="/dev/mapper/${target}"
62 ebegin " Setting up loop device ${source}"
63 /sbin/losetup ${source} ${loop_file}
64 fi
65
66 # cryptsetup:
67 # luksOpen <device> <name> # <device> is $source
68 # create <name> <device> # <name> is $target
69 local arg1="create" arg2="$target" arg3="$source" luks=0
70
71 cryptsetup isLuks ${source} 2>/dev/null && { arg1="luksOpen"; arg2="$source"; arg3="$target"; luks=1; }
72
73 if /sbin/cryptsetup status ${target} | egrep -q '\<active:' ; then
74 einfo "dm-crypt mapping ${target} is already configured"
75 return
76 fi
77 splash svc_input_begin ${SVCNAME} >/dev/null 2>&1
78
79 # Handle keys
80 if [ -n "$key" ]; then
81 read_abort() {
82 local ans
83 local prompt=" ${green}*${off} $1? (${red}yes${off}/${green}No${off}) "
84 shift
85 echo -n -e "${prompt}"
86 if ! read -n 1 $* ans ; then
87 local back=${prompt//?/\\b}
88 echo -n -e "${back}"
89 else
90 echo
91 fi
92 case $ans in
93 [yY]|[yY][eE][sS]) return 0;;
94 *) return 1;;
95 esac
96 }
97
98 # Notes: sed not used to avoid case where /usr partition is encrypted.
99 mode=${key/*:/} && ( [ "$mode" == "$key" ] || [ -z "$mode" ] ) && mode=reg
100 key=${key/:*/}
101 case "$mode" in
102 gpg|reg)
103 # handle key on removable device
104 if [ -n "$remdev" ]; then
105 # temp directory to mount removable device
106 local mntrem="${RC_SVCDIR}/dm-crypt-remdev.$$"
107 if [ ! -d "${mntrem}" ] ; then
108 if ! mkdir -p "${mntrem}" ; then
109 ewarn "${source} will not be decrypted ..."
110 einfo "Reason: Unable to create temporary mount point '${mntrem}'"
111 return
112 fi
113 fi
114 i=0
115 einfo "Please insert removable device for ${target}"
116 while [ ${i} -lt ${dmcrypt_max_timeout:-120} ] ; do
117 foo=""
118 if mount -n -o ro "${remdev}" "${mntrem}" 2>/dev/null >/dev/null ; then
119 # keyfile exists?
120 if [ ! -e "${mntrem}${key}" ]; then
121 umount -n "${mntrem}"
122 rmdir "${mntrem}"
123 einfo "Cannot find ${key} on removable media."
124 read_abort "Abort" ${read_timeout:--t 1} && return
125 else
126 key="${mntrem}${key}"
127 break
128 fi
129 else
130 [ -e "${remdev}" ] \
131 && foo="mount failed" \
132 || foo="mount source not found"
133 fi
134 ((++i))
135 read_abort "Stop waiting after $i attempts (${foo})" -t 1 && return
136 done
137 else # keyfile ! on removable device
138 if [ ! -e "$key" ]; then
139 ewarn "${source} will not be decrypted ..."
140 einfo "Reason: keyfile ${key} does not exist."
141 return
142 fi
143 fi
144 ;;
145 *)
146 ewarn "${source} will not be decrypted ..."
147 einfo "Reason: mode ${mode} is invalid."
148 return
149 ;;
150 esac
151 else
152 mode=none
153 fi
154 ebegin "dm-crypt map ${target}"
155 einfo "cryptsetup will be called with : ${options} ${arg1} ${arg2} ${arg3}"
156 if [ "$mode" == "gpg" ]; then
157 : ${gpg_options:='-q -d'}
158 # gpg available ?
159 if type -p gpg >/dev/null ; then
160 for (( i = 0 ; i < 3 ; i++ ))
161 do
162 # paranoid, don't store key in a variable, pipe it so it stays very little in ram unprotected.
163 # save stdin stdout stderr "values"
164 gpg ${gpg_options} ${key} 2>/dev/null | cryptsetup ${options} ${arg1} ${arg2} ${arg3}
165 ret="$?"
166 [ "$ret" -eq 0 ] && break
167 done
168 eend "${ret}" "failure running cryptsetup"
169 else
170 ewarn "${source} will not be decrypted ..."
171 einfo "Reason: cannot find gpg application."
172 einfo "You have to install app-crypt/gnupg first."
173 einfo "If you have /usr on its own partition, try copying gpg to /bin ."
174 fi
175 else
176 if [ "$mode" == "reg" ]; then
177 cryptsetup ${options} -d ${key} ${arg1} ${arg2} ${arg3}
178 ret="$?"
179 eend "${ret}" "failure running cryptsetup"
180 else
181 cryptsetup ${options} ${arg1} ${arg2} ${arg3}
182 ret="$?"
183 eend "${ret}" "failure running cryptsetup"
184 fi
185 fi
186 if [ -d "$mntrem" ]; then
187 umount -n ${mntrem} 2>/dev/null >/dev/null
188 rmdir ${mntrem} 2>/dev/null >/dev/null
189 fi
190 splash svc_input_end ${SVCNAME} >/dev/null 2>&1
191
192 if [[ ${ret} != 0 ]] ; then
193 cryptfs_status=1
194 else
195 if [[ -n ${pre_mount} ]] ; then
196 dev="/dev/mapper/${target}"
197 ebegin " Running pre_mount commands for ${target}"
198 eval "${pre_mount}" > /dev/null
199 ewend $? || cryptfs_status=1
200 fi
201 fi
202 }
203
204 # Run any post_mount commands for an individual mount
205 #
206 # Note: This relies on variables localized in the main body below.
207 dm_crypt_execute_localmount() {
208 local mount_point
209
210 [ -z "$target" ] && [ -z "$post_mount" ] && return
211
212 if ! /sbin/cryptsetup status ${target} | egrep -q '\<active:' ; then
213 ewarn "Skipping unmapped target ${target}"
214 cryptfs_status=1
215 return
216 fi
217
218 mount_point=$(grep "/dev/mapper/${target}" /proc/mounts | cut -d' ' -f2)
219 if [[ -z ${mount_point} ]] ; then
220 ewarn "Failed to find mount point for ${target}, skipping"
221 cryptfs_status=1
222 fi
223
224 if [[ -n ${post_mount} ]] ; then
225 ebegin "Running post_mount commands for target ${target}"
226 eval "${post_mount}" >/dev/null
227 eend $? || cryptfs_status=1
228 fi
229 }
230
231 # Determine string lengths
232 strlen() {
233 if [ -z "$1" ]
234 then
235 echo "usage: strlen <variable_name>"
236 die
237 fi
238 eval echo "\${#${1}}"
239 }
240
241 # Lookup optional bootparams
242 parse_opt() {
243 case "$1" in
244 *\=*)
245 local key_name="`echo "$1" | cut -f1 -d=`"
246 local key_len=`strlen key_name`
247 local value_start=$((key_len+2))
248 echo "$1" | cut -c ${value_start}-
249 ;;
250 esac
251 }
252
253 local cryptfs_status=0
254 local gpg_options key loop_file target targetline options pre_mount post_mount source swap remdev
255
256 CMDLINE="`cat /proc/cmdline`"
257 for x in ${CMDLINE}
258 do
259 case "${x}" in
260 key_timeout\=*)
261 KEY_TIMEOUT=`parse_opt "${x}"`
262 if [ ${KEY_TIMEOUT} -gt 0 ]; then
263 read_timeout="-t ${KEY_TIMEOUT}"
264 fi
265 ;;
266 esac
267 done
268
269 if [[ -f /etc/conf.d/${SVCNAME} ]] && [[ -x /sbin/cryptsetup ]] ; then
270 ebegin "Setting up dm-crypt mappings"
271
272 while read -u 3 targetline ; do
273 # skip comments and blank lines
274 [[ ${targetline}\# == \#* ]] && continue
275
276 # check for the start of a new target/swap
277 case ${targetline} in
278 target=*|swap=*)
279 # If we have a target queued up, then execute it
280 dm_crypt_execute_${SVCNAME%.*}
281
282 # Prepare for the next target/swap by resetting variables
283 unset gpg_options key loop_file target options pre_mount post_mount source swap remdev
284 ;;
285
286 gpg_options=*|remdev=*|key=*|loop_file=*|options=*|pre_mount=*|post_mount=*|source=*)
287 if [[ -z ${target} && -z ${swap} ]] ; then
288 ewarn "Ignoring setting outside target/swap section: ${targetline}"
289 continue
290 fi
291 ;;
292
293 *)
294 ewarn "Skipping invalid line in /etc/conf.d/${SVCNAME}: ${targetline}"
295 ;;
296 esac
297
298 # Queue this setting for the next call to dm_crypt_execute_${SVCNAME%.*}
299 eval "${targetline}"
300 done 3< /etc/conf.d/${SVCNAME}
301
302 # If we have a target queued up, then execute it
303 dm_crypt_execute_${SVCNAME%.*}
304
305 ewend ${cryptfs_status} "Failed to setup dm-crypt devices"
306 fi
307
308 # vim:ts=4
309
310
311
312 1.1 sys-fs/cryptsetup/files/1.1.3-dm-crypt-stop.sh
313
314 file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-fs/cryptsetup/files/1.1.3-dm-crypt-stop.sh?rev=1.1&view=markup
315 plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-fs/cryptsetup/files/1.1.3-dm-crypt-stop.sh?rev=1.1&content-type=text/plain
316
317 Index: 1.1.3-dm-crypt-stop.sh
318 ===================================================================
319 # /lib/rcscripts/addons/dm-crypt-stop.sh
320
321 # Fix for baselayout-1.12.10 (bug 174256)
322 : ${SVCNAME:=${myservice}}
323
324 # Try to remove any dm-crypt mappings
325 csetup=/sbin/cryptsetup
326 if [ -f /etc/conf.d/${SVCNAME} ] && [ -x "$csetup" ]
327 then
328 einfo "Removing dm-crypt mappings"
329
330 /bin/egrep "^(target|swap)" /etc/conf.d/${SVCNAME} | \
331 while read targetline
332 do
333 target=
334 swap=
335
336 eval ${targetline}
337
338 [ -n "${swap}" ] && target=${swap}
339 [ -z "${target}" ] && ewarn "Invalid line in /etc/conf.d/${SVCNAME}: ${targetline}"
340
341 ebegin "Removing dm-crypt mapping for: ${target}"
342 ${csetup} remove ${target}
343 eend $? "Failed to remove dm-crypt mapping for: ${target}"
344 done
345
346 if [[ -n $(/bin/egrep -e "^(source=)./dev/loop*" /etc/conf.d/${SVCNAME}) ]] ; then
347 einfo "Taking down any dm-crypt loop devices"
348 /bin/egrep -e "^(source)" /etc/conf.d/${SVCNAME} | while read sourceline
349 do
350 source=
351 eval ${sourceline}
352 if [[ -n $(echo ${source} | grep /dev/loop) ]] ; then
353 ebegin " Taking down ${source}"
354 /sbin/losetup -d ${source}
355 eend $? " Failed to remove loop"
356 fi
357 done
358 fi
359 fi
360
361 # vim:ts=4