/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk

« back to all changes in this revision

Viewing changes to initramfs-tools-script

  • Committer: Teddy Hogeborn
  • Date: 2009-09-05 01:46:42 UTC
  • Revision ID: teddy@fukt.bsnet.se-20090905014642-36108sqop1ci0z0m
* plugins.d/mandos-client.c (start_mandos_communication): Check
                                                         "quit_now"
                                                         throughout.
                                                         Always close
                                                         socket and
                                                         deinit GnuTLS
                                                         properly.
  (browse_callback): Return immediately if "quit_now" is set.

Show diffs side-by-side

added added

removed removed

Lines of Context:
initramfs-tools-script
 
1
#!/bin/sh -e
 
2
# 
 
3
# This script will run in the initrd environment at boot and edit
 
4
# /conf/conf.d/cryptroot to set /lib/mandos/plugin-runner as keyscript
 
5
# when no other keyscript is set, before cryptsetup.
 
6
# 
 
7
 
 
8
# This script should be installed as
 
9
# "/usr/share/initramfs-tools/scripts/init-premount/mandos" which will
 
10
# eventually be "/scripts/init-premount/mandos" in the initrd.img
 
11
# file.
 
12
 
 
13
# No initramfs pre-requirements.
 
14
PREREQ="udev"
 
15
prereqs()
 
16
{
 
17
    echo "$PREREQ"
 
18
}
 
19
 
 
20
case $1 in
 
21
prereqs)
 
22
        prereqs
 
23
        exit 0
 
24
        ;;
 
25
esac
 
26
 
 
27
. /scripts/functions
 
28
 
 
29
for param in `cat /proc/cmdline`; do
 
30
    case "$param" in
 
31
        ip=*) IPOPTS="${param#ip=}" ;;
 
32
        mandos=*)
 
33
            # Split option line on commas
 
34
            old_ifs="$IFS"
 
35
            IFS="$IFS,"
 
36
            for mpar in ${param#mandos=}; do
 
37
                IFS="$old_ifs"
 
38
                case "$mpar" in
 
39
                    off) exit 0 ;;
 
40
                    connect) connect="" ;;
 
41
                    connect:*) connect="${mpar#connect:}" ;;
 
42
                    *) log_warning_msg "$0: Bad option ${mpar}" ;;
 
43
                esac
 
44
            done
 
45
            unset mpar
 
46
            IFS="$old_ifs"
 
47
            unset old_ifs
 
48
            ;;
 
49
    esac
 
50
done
 
51
unset param
 
52
 
 
53
chmod a=rwxt /tmp
 
54
 
 
55
test -r /conf/conf.d/cryptroot
 
56
test -w /conf/conf.d
 
57
 
 
58
# Get DEVICE from /conf/initramfs.conf and other files
 
59
. /conf/initramfs.conf
 
60
for conf in /conf/conf.d/*; do
 
61
    [ -f ${conf} ] && . ${conf}
 
62
done
 
63
if [ -e /conf/param.conf ]; then
 
64
    . /conf/param.conf
 
65
fi
 
66
 
 
67
# Override DEVICE from sixth field of ip= kernel option, if passed
 
68
case "$IPOPTS" in
 
69
    *:*:*:*:*:*)                # At least six fields
 
70
        # Remove the first five fields
 
71
        device="${IPOPTS#*:*:*:*:*:}"
 
72
        # Remove all fields except the first one
 
73
        DEVICE="${device%%:*}"
 
74
        ;;
 
75
esac
 
76
 
 
77
# Add device setting (if any) to plugin-runner.conf
 
78
if [ "${DEVICE+set}" = set ]; then
 
79
    # Did we get the device from an ip= option?
 
80
    if [ "${device+set}" = set ]; then
 
81
        # Let ip= option override local config; append:
 
82
        cat <<-EOF >>/conf/conf.d/mandos/plugin-runner.conf
 
83
        
 
84
        --options-for=mandos-client:--interface=${DEVICE}
 
85
EOF
 
86
    else
 
87
        # Prepend device setting so any later options would override:
 
88
        sed -i -e \
 
89
            '1i--options-for=mandos-client:--interface='"${DEVICE}" \
 
90
            /conf/conf.d/mandos/plugin-runner.conf
 
91
    fi
 
92
fi
 
93
unset device
 
94
 
 
95
# If we are connecting directly, run "configure_networking" (from
 
96
# /scripts/functions); it needs IPOPTS and DEVICE
 
97
if [ "${connect+set}" = set ]; then
 
98
    configure_networking
 
99
    if [ -n "$connect" ]; then
 
100
        cat <<-EOF >>/conf/conf.d/mandos/plugin-runner.conf
 
101
        
 
102
        --options-for=mandos-client:--connect=${connect}
 
103
EOF
 
104
    fi
 
105
fi
 
106
 
 
107
# Do not replace cryptroot file unless we need to.
 
108
replace_cryptroot=no
 
109
 
 
110
# Our keyscript
 
111
mandos=/lib/mandos/plugin-runner
 
112
 
 
113
# parse /conf/conf.d/cryptroot.  Format:
 
114
# target=sda2_crypt,source=/dev/sda2,key=none,keyscript=/foo/bar/baz
 
115
exec 3>/conf/conf.d/cryptroot.mandos
 
116
while read options; do
 
117
    newopts=""
 
118
    # Split option line on commas
 
119
    old_ifs="$IFS"
 
120
    IFS="$IFS,"
 
121
    for opt in $options; do
 
122
        # Find the keyscript option, if any
 
123
        case "$opt" in
 
124
            keyscript=*)
 
125
                keyscript="${opt#keyscript=}"
 
126
                newopts="$newopts,$opt"
 
127
                ;;
 
128
            "") : ;;
 
129
            *)
 
130
                newopts="$newopts,$opt"
 
131
                ;;
 
132
        esac
 
133
    done
 
134
    IFS="$old_ifs"
 
135
    unset old_ifs
 
136
    # If there was no keyscript option, add one.
 
137
    if [ -z "$keyscript" ]; then
 
138
        replace_cryptroot=yes
 
139
        newopts="$newopts,keyscript=$mandos"
 
140
    fi
 
141
    newopts="${newopts#,}"
 
142
    echo "$newopts" >&3
 
143
done < /conf/conf.d/cryptroot
 
144
exec 3>&-
 
145
 
 
146
# If we need to, replace the old cryptroot file with the new file.
 
147
if [ "$replace_cryptroot" = yes ]; then
 
148
    mv /conf/conf.d/cryptroot /conf/conf.d/cryptroot.mandos-old
 
149
    mv /conf/conf.d/cryptroot.mandos /conf/conf.d/cryptroot
 
150
else
 
151
    rm /conf/conf.d/cryptroot.mandos
 
152
fi