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
|
#!/bin/sh
set -e
TESTDIR=$(readlink -f $(dirname $0))
. $TESTDIR/framework
setupenvironment
configarchitecture 'native'
# create a bunch of failures
createfailure() {
setupsimplenativepackage "failure-$1" 'native' '1.0' 'unstable' 'Depends: dependee'
BUILDDIR="incoming/failure-$1-1.0"
echo '#!/bin/sh
exit 29' > ${BUILDDIR}/debian/$1
buildpackage "$BUILDDIR" 'unstable' 'main' 'native'
rm -rf "$BUILDDIR"
}
buildsimplenativepackage 'dependee' 'native' '1.0' 'unstable'
createfailure 'preinst'
createfailure 'postinst'
createfailure 'prerm'
createfailure 'postrm'
setupaptarchive
# create a library to noop chroot() and rewrite maintainer script executions
# via execvp() as used by dpkg as we don't want our rootdir to be a fullblown
# chroot directory dpkg could chroot into to execute the maintainer scripts
cat << EOF > noopchroot.c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>
static char * chrootdir = NULL;
int chroot(const char *path) {
printf("WARNING: CHROOTing to %s was ignored!\n", path);
free(chrootdir);
chrootdir = strdup(path);
return 0;
}
int execvp(const char *file, char *const argv[]) {
static int (*func_execvp) (const char *, char * const []) = NULL;
if (func_execvp == NULL)
func_execvp = (int (*) (const char *, char * const [])) dlsym(RTLD_NEXT, "execvp");
if (chrootdir == NULL || strncmp(file, "/var/lib/dpkg/", strlen("/var/lib/dpkg/")) != 0)
return func_execvp(file, argv);
printf("REWRITE execvp call %s into %s\n", file, chrootdir);
char newfile[strlen(chrootdir) + strlen(file)];
strcpy(newfile, chrootdir);
strcat(newfile, file);
return func_execvp(newfile, argv);
}
EOF
testsuccess gcc -fPIC -shared -o noopchroot.so noopchroot.c -ldl
mkdir -p "${TMPWORKINGDIRECTORY}/rootdir/usr/bin/"
DPKG="${TMPWORKINGDIRECTORY}/rootdir/usr/bin/dpkg"
echo "#!/bin/sh
if [ -n \"\$LD_PRELOAD\" ]; then
export LD_PRELOAD=\"${TMPWORKINGDIRECTORY}/noopchroot.so \${LD_PRELOAD}\"
else
export LD_PRELOAD=\"${TMPWORKINGDIRECTORY}/noopchroot.so\"
fi
dpkg \"\$@\"" > $DPKG
chmod +x $DPKG
sed -ie "s|^DPKG::options:: \"dpkg\";\$|DPKG::options:: \"$DPKG\";|" aptconfig.conf
# setup some pre- and post- invokes to check the output isn't garbled later
APTHOOK="${TMPWORKINGDIRECTORY}/rootdir/usr/bin/apthook"
echo '#!/bin/sh
echo "$1: START"
echo "$1: MaiN"
echo "$1: ENd"' > $APTHOOK
chmod +x $APTHOOK
echo "DPKG::Pre-Invoke:: \"${APTHOOK} PRE\";
DPKG::Post-Invoke:: \"${APTHOOK} POST\";" > rootdir/etc/apt/apt.conf.d/99apthooks
testmyfailure() {
local PROGRESS='rootdir/tmp/progress.log'
exec 3> $PROGRESS
testfailure "$@" -o APT::Status-Fd=3
msgtest 'Test for failure message of maintainerscript in' 'console log'
local TEST='rootdir/tmp/testfailure.output'
if grep -q 'exit status 29' "$TEST"; then
msgpass
else
cat $TEST
msgfail
fi
msgtest 'Test for proper execution of invoke scripts in' 'console log'
if grep -q '^PRE: START$' $TEST &&
grep -q '^PRE: MaiN$' $TEST &&
grep -q '^PRE: ENd$' $TEST &&
grep -q '^POST: START$' $TEST &&
grep -q '^POST: MaiN$' $TEST &&
grep -q '^POST: ENd$' $TEST; then
msgpass
else
cat $TEST
msgfail
fi
msgtest 'Test for failure message of maintainerscript in' 'progress log'
if grep -q '^pmerror:.\+exit status 29$' "$PROGRESS"; then
msgpass
else
cat $PROGRESS
msgfail
fi
testmarkedauto 'dependee'
}
cp -a rootdir/var/lib/dpkg/status rootdir/var/lib/dpkg/status.backup
testmyfailure aptget install failure-preinst -y
cp -a rootdir/var/lib/dpkg/status.backup rootdir/var/lib/dpkg/status
testmyfailure aptget install failure-postinst -y
cp -a rootdir/var/lib/dpkg/status.backup rootdir/var/lib/dpkg/status
testsuccess aptget install failure-prerm -y
testdpkginstalled failure-prerm
testmyfailure aptget purge failure-prerm -y
cp -a rootdir/var/lib/dpkg/status.backup rootdir/var/lib/dpkg/status
testsuccess aptget install failure-postrm -y
testdpkginstalled failure-postrm
testmyfailure aptget purge failure-postrm -y
# FIXME: test with output going to a PTY as it usually does
#cp -a rootdir/var/lib/dpkg/status.backup rootdir/var/lib/dpkg/status
#aptget install failure-preinst -y
|