/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: 2015-07-01 20:01:26 UTC
  • mto: This revision was merged to the branch mainline in revision 759.
  • Revision ID: teddy@recompile.se-20150701200126-qb3f6c3jcas2f4og
mandos-client: Try to start a plugin to add and remove a local route.

* debian/mandos-client.README.Debian: Add setting of environment
                                      variable MANDOSPLUGINHELPERDIR
                                      to command line testing
                                      mandos-client.
* mandos-client.c (raise_privileges): Moved to top of file.
                  (raise_privileges_permanently): - '' -
                  (lower_privileges): - '' -
                  (lower_privileges_permanently): - '' -
  (add_remove_local_route, add_local_route, remove_local_route): New.
  (start_mandos_communication): Set SOCK_CLOEXEC flag on socket.  Run
                                the above functions to add (and
                                remove) local route, if the conditions
                                indicates it could help.
  (run_network_hooks): Use O_DIRECTORY, O_PATH, and O_CLOEXEC flags
                       when opening network hook directory. Do
                       TEMP_FAILURE_RETRY around opening of /dev/null
                       and network hook executables.  Move redirecting
                       of stdout and stderr to as late as possible
                       before fexecve().
  (main): Use O_DIRECTORY and O_PATH when opening temporary directory.
* plugins.d/mandos-client.xml (ENVIRONMENT): Document usage of the
                                             MANDOSPLUGINHELPERDIR
                                             environment variable.

Show diffs side-by-side

added added

removed removed

Lines of Context:
initramfs-tools-script
6
6
# 
7
7
 
8
8
# This script should be installed as
9
 
# "/usr/share/initramfs-tools/scripts/local-top/mandos" which will
10
 
# eventually be "/scripts/local-top/mandos" in the initrd.img file.
 
9
# "/usr/share/initramfs-tools/scripts/init-premount/mandos" which will
 
10
# eventually be "/scripts/init-premount/mandos" in the initrd.img
 
11
# file.
11
12
 
12
 
# No initramfs pre-requirements; we must instead run BEFORE cryptroot.
13
 
# This is not a problem, since cryptroot forces itself to run LAST.
14
 
PREREQ=""
 
13
PREREQ="udev"
15
14
prereqs()
16
15
{
17
 
     echo "$PREREQ"
 
16
    echo "$PREREQ"
18
17
}
19
18
 
20
19
case $1 in
21
20
prereqs)
22
 
     prereqs
23
 
     exit 0
24
 
     ;;
 
21
        prereqs
 
22
        exit 0
 
23
        ;;
25
24
esac
26
25
 
 
26
. /scripts/functions
 
27
 
27
28
for param in `cat /proc/cmdline`; do
28
29
    case "$param" in
29
 
        mandos=off) exit 0;;
 
30
        ip=*) IPOPTS="${param#ip=}" ;;
 
31
        mandos=*)
 
32
            # Split option line on commas
 
33
            old_ifs="$IFS"
 
34
            IFS="$IFS,"
 
35
            for mpar in ${param#mandos=}; do
 
36
                IFS="$old_ifs"
 
37
                case "$mpar" in
 
38
                    off) exit 0 ;;
 
39
                    connect) connect="" ;;
 
40
                    connect:*) connect="${mpar#connect:}" ;;
 
41
                    *) log_warning_msg "$0: Bad option ${mpar}" ;;
 
42
                esac
 
43
            done
 
44
            unset mpar
 
45
            IFS="$old_ifs"
 
46
            unset old_ifs
 
47
            ;;
30
48
    esac
31
49
done
 
50
unset param
32
51
 
33
52
chmod a=rwxt /tmp
34
53
 
35
 
test -w /conf/conf.d/cryptroot
 
54
test -r /conf/conf.d/cryptroot
 
55
test -w /conf/conf.d
 
56
 
 
57
# Get DEVICE from /conf/initramfs.conf and other files
 
58
. /conf/initramfs.conf
 
59
for conf in /conf/conf.d/*; do
 
60
    [ -f ${conf} ] && . ${conf}
 
61
done
 
62
if [ -e /conf/param.conf ]; then
 
63
    . /conf/param.conf
 
64
fi
 
65
 
 
66
# Override DEVICE from sixth field of ip= kernel option, if passed
 
67
case "$IPOPTS" in
 
68
    *:*:*:*:*:*)                # At least six fields
 
69
        # Remove the first five fields
 
70
        device="${IPOPTS#*:*:*:*:*:}"
 
71
        # Remove all fields except the first one
 
72
        DEVICE="${device%%:*}"
 
73
        ;;
 
74
esac
 
75
 
 
76
# Add device setting (if any) to plugin-runner.conf
 
77
if [ "${DEVICE+set}" = set ]; then
 
78
    # Did we get the device from an ip= option?
 
79
    if [ "${device+set}" = set ]; then
 
80
        # Let ip= option override local config; append:
 
81
        cat <<-EOF >>/conf/conf.d/mandos/plugin-runner.conf
 
82
        
 
83
        --options-for=mandos-client:--interface=${DEVICE}
 
84
EOF
 
85
    else
 
86
        # Prepend device setting so any later options would override:
 
87
        sed -i -e \
 
88
            '1i--options-for=mandos-client:--interface='"${DEVICE}" \
 
89
            /conf/conf.d/mandos/plugin-runner.conf
 
90
    fi
 
91
fi
 
92
unset device
 
93
 
 
94
# If we are connecting directly, run "configure_networking" (from
 
95
# /scripts/functions); it needs IPOPTS and DEVICE
 
96
if [ "${connect+set}" = set ]; then
 
97
    configure_networking
 
98
    if [ -n "$connect" ]; then
 
99
        cat <<-EOF >>/conf/conf.d/mandos/plugin-runner.conf
 
100
        
 
101
        --options-for=mandos-client:--connect=${connect}
 
102
EOF
 
103
    fi
 
104
fi
36
105
 
37
106
# Do not replace cryptroot file unless we need to.
38
107
replace_cryptroot=no
39
108
 
40
109
# Our keyscript
41
110
mandos=/lib/mandos/plugin-runner
 
111
test -x "$mandos"
42
112
 
43
113
# parse /conf/conf.d/cryptroot.  Format:
44
114
# target=sda2_crypt,source=/dev/sda2,key=none,keyscript=/foo/bar/baz