xref: /freebsd/usr.sbin/bsdinstall/scripts/checksum (revision 734e82fe33aa764367791a7d603b383996c6b40b)
1#!/bin/sh
2#-
3# Copyright (c) 2011 Nathan Whitehorn
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
27
28test -f $BSDINSTALL_DISTDIR/MANIFEST || exit 0
29
30BSDCFG_SHARE="/usr/share/bsdconfig"
31. $BSDCFG_SHARE/common.subr || exit 1
32
33percentage=0
34for dist in $DISTRIBUTIONS; do
35	distname=$(basename $dist .txz)
36	eval "status_$distname=-8"
37
38	items=""
39	for i in $DISTRIBUTIONS; do
40		items="$items $i `eval echo \\\${status_$(basename $i .txz):--11}`"
41	done
42	bsddialog --backtitle "$OSNAME Installer" --title "Checksum Verification" \
43	    --mixedgauge "\nVerifying checksums of selected distributions.\n" \
44	    0 0 $percentage  -- $items
45
46	CK=`sha256 -q $BSDINSTALL_DISTDIR/$dist`
47	awk -v checksum=$CK -v dist=$dist -v found=0 '{
48		if (dist == $1) {
49			found = 1
50			if (checksum == $2)
51				exit(0)
52			else
53				exit(2)
54		}
55	} END {if (!found) exit(1);}' $BSDINSTALL_DISTDIR/MANIFEST
56
57	CK_VALID=$?
58	if [ $CK_VALID -le 1 ]; then
59		if [ $CK_VALID -eq 0 ]; then
60			eval "status_$distname=-3"
61		else
62			eval "status_$distname=-7"
63		fi
64		percentage=$(echo $percentage + 100/`echo $DISTRIBUTIONS | wc -w` | bc)
65	else
66		eval "status_$distname=-2"
67		case $(/bin/freebsd-version -u) in
68		*-ALPHA*|*-CURRENT|*-STABLE|*-PRERELEASE)
69			bsddialog --backtitle "$OSNAME Installer" --title "Error" \
70			    --msgbox "The checksum for $dist does not match. It may have become corrupted, or it may be from a newer version of $OSNAME. Please check for a newer snapshot." 0 0
71			;;
72		*)
73			bsddialog --backtitle "$OSNAME Installer" --title "Error" \
74			    --msgbox "The checksum for $dist does not match. It may have become corrupted, and should be redownloaded." 0 0
75			;;
76		esac
77		exit 1
78	fi
79done
80
81exit 0
82