1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
#!/bin/sh
# $Id$
#
# $FreeBSD$
#
# PROVIDE: ezjail
# REQUIRE: LOGIN cleanvar sshd
# BEFORE: securelevel
# KEYWORD: nojail shutdown
#
# Add the following lines to /etc/rc.conf.local or /etc/rc.conf to enable ezjail
#
#ezjail_enable="YES"
#
# Please do not change this file, configure in EZJAIL_PREFIX/etc/ezjail.conf
# ugly: this variable is set on port install time
ezjail_prefix=EZJAIL_PREFIX
. /etc/rc.subr
name=ezjail
rcvar=`set_rcvar`
extra_commands="startcrypto stopcrypto"
load_rc_config ${name}
ezjail_enable=${ezjail_enable:-"NO"}
restart_cmd="do_cmd restart _"
start_cmd="do_cmd start '_ ezjail'"
stop_cmd="do_cmd stop '_ ezjail'"
startcrypto_cmd="do_cmd startcrypto _"
stopcrypto_cmd="do_cmd stopcrypto _"
do_cmd()
{
action=$1; message=$2; shift 2;
unset ezjail_list ezjail_pass ezjail_mds
ezjail_fromrc="YES"
# If a jail list is given on command line, process it
# If not, fetch it from our config directory
if [ "$*" ]; then
ezjail_list=`echo -n $* | tr -c '[:alnum:] ' '_'`
unset ezjail_fromrc
else
case "${action}" in *stop) reverse_command="tail -r";; *) reverse_command="cat";; esac
[ -d "${ezjail_prefix}/etc/ezjail/" ] && cd "${ezjail_prefix}/etc/ezjail/" && ezjail_list=`ls | xargs rcorder | ${reverse_command}`
echo -n "${message##_}"
fi
for ezjail in ${ezjail_list}; do
# If jail is temporary disabled (dot in name), skip it
[ -f "${ezjail_prefix}/etc/ezjail/${ezjail}.norun" -o "${ezjail%.*}" != "${ezjail}" ] && echo -n " skipping ${ezjail}" && continue
# Check for jails config
[ ! -r "${ezjail_prefix}/etc/ezjail/${ezjail}" ] && echo " Warning: Jail ${ezjail} not found." && continue
# Read config file
. "${ezjail_prefix}/etc/ezjail/${ezjail}"
eval ezjail_rootdir=\"\$jail_${ezjail}_rootdir\"
eval ezjail_image=\"\$jail_${ezjail}_image\"
eval ezjail_imagetype=\"\$jail_${ezjail}_imagetype\"
eval ezjail_attachparams=\"\$jail_${ezjail}_attachparams\"
eval ezjail_attachblocking=\"\$jail_${ezjail}_attachblocking\"
eval ezjail_forceblocking=\"\$jail_${ezjail}_forceblocking\"
eval ezjail_zfs_datasets=\"\$jail_${ezjail}_zfs_datasets\"
eval ezjail_cpuset=\"\$jail_${ezjail}_cpuset\"
# Do we still have a root to run in?
[ ! -d "${ezjail_rootdir}" ] && echo " Warning: root directory ${ezjail_rootdir} of ${ezjail} does not exist." && continue
[ "${ezjail_attachblocking}" -o "${ezjail_forceblocking}" ] && ezjail_blocking="YES" || unset ezjail_blocking
# Cannot auto mount blocking jails without interrupting boot process
[ "${ezjail_fromrc}" -a "${action}" = "start" -a "${ezjail_blocking}" ] && echo -n " ...skipping blocking jail ${ezjail}" && continue
# Explicitely do only run blocking crypto jails when *crypto is requested
[ "${action%crypto}" = "${action}" -o "${ezjail_blocking}" ] || continue
# Try to attach (crypto) devices
if [ "${ezjail_image}" ]; then
attach_detach_pre || continue
fi
ezjail_pass="${ezjail_pass} ${ezjail}"
done
# Pass control to jail script which does the actual work
[ "${ezjail_pass}" ] && sh /etc/rc.d/jail one${action%crypto} ${ezjail_pass}
if [ "${action}" = "start" ]; then
ezjail_safename=`echo -n "${ezjail}" | tr -c '[:alnum:]' _`
# Get the JID of the jail
[ -f "/var/run/jail_${ezjail_safename}.id" ] && ezjail_id=`cat /var/run/jail_${ezjail_safename}.id` || return
echo ${ezjail_id}
# Attach ZFS-datasets to the jail
for zfs in ${ezjail_zfs_datasets}; do
/sbin/zfs jail ${ezjail_id} ${zfs} ||Êecho -n "Error: ${zfs} could not be configured"
done
# Configure processor sets for the jail via cpuset(1)
[ -z "${ezjail_cpuset}" ] || /usr/bin/cpuset -l ${ezjail_cpuset} -j ${ezjail_id} || echo -n "Error: The defined cpuset is malformed"
fi
# Can only detach after unmounting (from fstab.JAILNAME in /etc/rc.d/jail)
attach_detach_post
}
attach_detach_pre ()
{
case "${action%crypto}" in
start|restart)
# If jail is running, do not mount devices, this is the same check as
# /etc/rc.d/jail does
[ -e "/var/run/jail_${ezjail}.id" ] && return 0
if [ -L "${ezjail_rootdir}.device" ]; then
# Fetch destination of soft link
ezjail_device=`stat -f "%Y" ${ezjail_rootdir}.device`
mount -p -v | grep -E "^${ezjail_rootdir}.device.${ezjail_rootdir}" && echo "Warning: Skipping jail. Jail image file ${ezjail} already attached as ${ezjail_device}. 'ezjail-admin config -i detach' it first." && return 1
mount -p -v | grep -E "^${ezjail_device}.${ezjail_rootdir}" && echo "Warning: Skipping jail. Jail image file ${ezjail} already attached as ${ezjail_device}. 'ezjail-admin config -i detach' it first." && return 1
# Remove stale device link
rm -f "${ezjail_rootdir}.device"
fi
# Create a memory disc from jail image
ezjail_device=`mdconfig -a -t vnode -f ${ezjail_image}` || return 1
# If this is a crypto jail, try to mount it, remind user, which jail
# this is. In this case, the device to mount is
case ${ezjail_imagetype} in
crypto|bde)
echo "Attaching bde device for image jail ${ezjail}..."
echo gbde attach "/dev/${ezjail_device}" ${ezjail_attachparams} | /bin/sh
if [ $? -ne 0 ]; then
mdconfig -d -u "${ezjail_device}" > /dev/null
echo "Error: Attaching bde device failed."; return 1
fi
# Device to mount is not md anymore
ezjail_device="${ezjail_device}.bde"
;;
eli)
echo "Attaching eli device for image jail ${ezjail}..."
echo geli attach ${ezjail_attachparams} "/dev/${ezjail_device}" | /bin/sh
if [ $? -ne 0 ]; then
mdconfig -d -u "${ezjail_device}" > /dev/null
echo "Error: Attaching eli device failed."; return 1
fi
# Device to mount is not md anymore
ezjail_device="${ezjail_device}.eli"
;;
esac
# Clean image
fsck -t ufs -p -B "/dev/${ezjail_device}"
# relink image device
rm -f "${ezjail_rootdir}.device"
ln -s "/dev/${ezjail_device}" "${ezjail_rootdir}.device"
;;
stop)
# If jail is not running, do not unmount devices, this is the same check
# as /etc/rc.d/jail does
[ -e "/var/run/jail_${ezjail}.id" ] || return 1
# If soft link to device is not set, we cannot unmount
[ -e "${ezjail_rootdir}.device" ] || return
# Fetch destination of soft link
ezjail_device=`stat -f "%Y" "${ezjail_rootdir}.device"`
# Add this device to the list of devices to be unmounted
case ${ezjail_imagetype} in
crypto|bde) ezjail_mds="${ezjail_mds} ${ezjail_device%.bde}" ;;
eli) ezjail_mds="${ezjail_mds} ${ezjail_device%.eli}" ;;
simple) ezjail_mds="${ezjail_mds} ${ezjail_device}" ;;
esac
# Remove soft link (which acts as a lock)
rm -f "${ezjail_rootdir}.device"
;;
esac
}
attach_detach_post () {
# In case of a stop, unmount image devices after stopping jails
for md in ${ezjail_mds}; do
[ -e "${md}.bde" ] && gbde detach "${md}"
[ -e "${md}.eli" ] && geli detach "${md}"
mdconfig -d -u "${md#/dev/}"
done
}
run_rc_command $*
|
