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attempt diagnosing skip-tar-in-mknod failure 'file changed as we read it' using auditd

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Johannes Schauer Marin Rodrigues 2024-03-27 05:49:46 +01:00
parent ae09a50f9d
commit 726fc38d1d
Signed by untrusted user: josch
GPG key ID: F2CBA5C78FBD83E1
3 changed files with 5 additions and 3 deletions
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2
coverage.txt
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@ -433,4 +433,4 @@ Test: skip-output-mknod
Modes: root unshare Modes: root unshare
Test: skip-tar-in-mknod Test: skip-tar-in-mknod
Modes: unshare Modes: root

1
make_mirror.sh
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@ -457,6 +457,7 @@ if [ "$HAVE_QEMU" = "yes" ]; then
if [ ! -e ./mmdebstrap ]; then if [ ! -e ./mmdebstrap ]; then
pkgs="$pkgs,mmdebstrap" pkgs="$pkgs,mmdebstrap"
fi fi
pkgs="$pkgs,auditd"
arches=$HOSTARCH arches=$HOSTARCH
if [ "$RUN_MA_SAME_TESTS" = "yes" ]; then if [ "$RUN_MA_SAME_TESTS" = "yes" ]; then
case "$HOSTARCH" in case "$HOSTARCH" in

5
tests/skip-tar-in-mknod
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@ -3,7 +3,7 @@ set -eu
export LC_ALL=C.UTF-8 export LC_ALL=C.UTF-8
export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }} export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
[ {{ MODE }} = "unshare" ] #[ {{ MODE }} = "unshare" ]
trap "rm -f /tmp/debian-chroot.tar" EXIT INT TERM trap "rm -f /tmp/debian-chroot.tar" EXIT INT TERM
@ -22,7 +22,8 @@ fi
$prefix {{ CMD }} --mode={{ MODE }} --variant=custom \ $prefix {{ CMD }} --mode={{ MODE }} --variant=custom \
--skip=update,setup,cleanup,tar-in/mknod \ --skip=update,setup,cleanup,tar-in/mknod \
--setup-hook='tar-in ./cache/mmdebstrap-{{ DIST }}-apt.tar /' \ --setup-hook='tar-in ./cache/mmdebstrap-{{ DIST }}-apt.tar /' \
'' /tmp/debian-chroot.tar --setup-hook='/sbin/auditctl -w "$1" -p wxa -k mykey' \
'' /tmp/debian-chroot.tar || /sbin/ausearch --format text -k mykey
cmp ./cache/mmdebstrap-{{ DIST }}-apt.tar /tmp/debian-chroot.tar \ cmp ./cache/mmdebstrap-{{ DIST }}-apt.tar /tmp/debian-chroot.tar \
|| diffoscope ./cache/mmdebstrap-{{ DIST }}-apt.tar /tmp/debian-chroot.tar || diffoscope ./cache/mmdebstrap-{{ DIST }}-apt.tar /tmp/debian-chroot.tar