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Viewing changes to initramfs-unpack

  • Committer: Teddy Hogeborn
  • Date: 2008-07-29 03:35:39 UTC
  • Revision ID: teddy@fukt.bsnet.se-20080729033539-08zecoj3jwlkpjhw
* server.conf: New file.

* mandos-clients.conf: Renamed to clients.conf.

* Makefile (FORTIFY): New.
  (CFLAGS): Include $(FORTIFY).

* plugins.d/mandosclient.c (main): New "if_index" variable.  Bug fix:
                                   check if interface exists.  New
                                   "--connect" option.

* server.py (serviceInterface): Removed; replaced by
                                "AvahiService.interface".  All users
                                changed.
  (AvahiError, AvahiServiceError, AvahiGroupError): New exception
                                                    classes.
  (AvahiService): New class.
  (serviceName): Removed; replaced by "AvahiService.name".  All users
                 changed.
  (serviceType): Removed; replaced by "AvahiService.type".  All users
                 changed.
  (servicePort): Removed; replaced by "AvahiService.port".  All users
                 changed.
  (serviceTXT): Removed; replaced by "AvahiService.TXT".  All users
                changed.
  (domain): Removed; replaced by "AvahiService.domain".  All users
            changed.
  (host): Removed; replaced by "AvahiService.host".  All users
          changed.
  (rename_count): Removed; replaced by "AvahiService.rename_count" and
                 "AvahiService.max_renames".  All users changed.
  (Client.__init__): If no secret or secfile, raise TypeError instead
                     of RuntimeError.
  (Client.last_seen): Renamed to "Client.last_checked_ok".  All users
                      changed.
  (Client.stop, Client.stop_checker): Use "getattr" with default value
                                      instead of "hasattr".
  (Client.still_valid): Removed "now" argument.
  (Client.handle): Separate the "no client found" and "client invalid"
                   cases for clearer code.
  (IPv6_TCPServer.__init__): "options" argument replaced by
                             "settings".  All callers changed.
  (IPv6_TCPServer.options): Replaced by "IPv6_TCPServer.settings".
                            All users changed.
  (IPv6_TCPServer.server_bind): Use getattr instead of hasattr.
  (add_service): Removed; replaced by "AvahiService.add".  All callers
                 changed.
  (remove_service): Removed; replaced by "AvahiService.remove".  All
                    callers changed.
  (entry_group_state_changed): On entry group collision, call the new
                               AvahiService.rename method.  Raise
                               AvahiGroupError on group error.
  (if_nametoindex): Use ctypes.utils.find_library to locate the C
                    library.  Cache the result.  Loop on EINTR.
  (daemon): Use os.path.devnull to locate "/dev/null".
  (killme): Removed.  All callers changed to do "sys.exit()" instead,
            except where stated otherwise.
  (main): Removed "exitstatus".  Removed all default values from all
          non-bool options.  New option "--configdir".  New variables
          "server_defaults" and "server_settings", read from
          "%(configdir)s/server.conf".  Let any supplied command line
          options override server settings.   Variable "defaults"
          renamed to "client_defaults", which is read from
          "clients.conf" instead of "mandos-clients.conf".  New global
          AvahiService object "service" replaces old global variables.
          Catch AvahiError and exit with error if caught.

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Lines of Context:
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#!/bin/bash
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# Initramfs unpacker - unpacks initramfs images into /tmp
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# Copyright © 2013-2019 Teddy Hogeborn
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# Copyright © 2013-2019 Björn Påhlsson
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# This file is part of Mandos.
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#
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# Mandos is free software: you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
12
 
# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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#     Mandos is distributed in the hope that it will be useful,
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#     but WITHOUT ANY WARRANTY; without even the implied warranty of
17
 
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18
 
#     GNU General Public License for more details.
19
 
#
20
 
# You should have received a copy of the GNU General Public License
21
 
# along with Mandos.  If not, see
22
 
# <http://www.gnu.org/licenses/>.
23
 
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# Contact the authors at <mandos@recompile.se>.
25
 
 
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cpio="cpio --extract --make-directories --unconditional --preserve-modification-time"
27
 
 
28
 
if [ -z "$*" ]; then
29
 
    set -- /boot/initrd.img-*
30
 
fi
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for imgfile in "$@"; do
33
 
    if ! [ -f "$imgfile" ]; then
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        echo "Error: Not an existing file: $imgfile" >&2
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        continue
36
 
    fi
37
 
    imgdir="${TMPDIR:-/tmp}/${imgfile##*/}"
38
 
    if [ -d "$imgdir" ]; then
39
 
        rm --recursive -- "$imgdir"
40
 
    fi
41
 
    mkdir --parents "$imgdir"
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    # Does this image contain microcode?
43
 
    if $cpio --quiet --list --file="$imgfile" >/dev/null 2>&1; then
44
 
        # Number of bytes to skip to get to the compressed archive
45
 
        skip=$(($(LANG=C $cpio --io-size=1 --list --file="$imgfile" 2>&1 \
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                      | sed --quiet \
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                            --expression='s/^\([0-9]\+\) blocks$/\1/p')+8))
48
 
        if [ -x /usr/lib/dracut/skipcpio ]; then
49
 
            catimg="/usr/lib/dracut/skipcpio $imgfile"
50
 
        else
51
 
            catimg="dd if=$imgfile bs=$skip skip=1 status=noxfer"
52
 
        fi
53
 
    else
54
 
        echo "No microcode detected"
55
 
        catimg="cat -- $imgfile"
56
 
    fi
57
 
    while :; do
58
 
        # Determine the compression method
59
 
        if { $catimg 2>/dev/null | zcat --test >/dev/null 2>&1;
60
 
             [ ${PIPESTATUS[-1]} -eq 0 ]; }; then
61
 
            decomp="zcat"
62
 
        elif { $catimg 2>/dev/null | bzip2 --test >/dev/null 2>&1;
63
 
               [ ${PIPESTATUS[-1]} -eq 0 ]; }; then
64
 
            decomp="bzip2 --stdout --decompress"
65
 
        elif { $catimg 2>/dev/null | lzop --test >/dev/null 2>&1;
66
 
               [ ${PIPESTATUS[-1]} -eq 0 ]; }; then
67
 
            decomp="lzop --stdout --decompress"
68
 
        elif { $catimg 2>/dev/null | zstd --test >/dev/null 2>&1;
69
 
               [ ${PIPESTATUS[-1]} -eq 0 ]; }; then
70
 
            decomp="zstdcat --stdout --decompress"
71
 
        else
72
 
            skip=$((${skip}+1))
73
 
            echo "Could not determine compression of ${imgfile}; trying to skip ${skip} bytes" >&2
74
 
            catimg="dd if=$imgfile bs=$skip skip=1 status=noxfer"
75
 
            continue
76
 
        fi
77
 
        break
78
 
    done
79
 
    case "$catimg" in
80
 
        *skipcpio*) echo "Microcode detected, skipping";;
81
 
        *) echo "Microcode detected, skipping ${skip} bytes";;
82
 
    esac
83
 
    $catimg 2>/dev/null | $decomp | ( cd -- "$imgdir" && $cpio --quiet )
84
 
    if [ ${PIPESTATUS[-1]} -eq 0 ]; then
85
 
        echo "$imgfile unpacked into $imgdir"
86
 
    fi
87
 
done