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coredump: AccessContainer= bunch of followups (#34333)

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Fixes #34130
This commit is contained in:
Luca Boccassi
2024-10-30 14:37:44 +00:00
committed by GitHub
parent c8b774463e 65c75f99e1
commit 58ada3eab2
6 changed files with 151 additions and 86 deletions
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1
test/TEST-74-AUX-UTILS/test.sh
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@@ -36,6 +36,7 @@ test_append_files() {
instmods vmw_vsock_virtio_transport
instmods vsock_loopback
instmods vmw_vsock_vmci_transport
inst_binary gcc
generate_module_dependencies
}

33
test/units/TEST-74-AUX-UTILS.coredump.sh
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@@ -8,13 +8,15 @@ set -o pipefail
# Make sure the binary name fits into 15 characters
CORE_TEST_BIN="/tmp/test-dump"
CORE_STACKTRACE_TEST_BIN="/tmp/test-stacktrace-dump"
MAKE_STACKTRACE_DUMP="/tmp/make-stacktrace-dump"
CORE_TEST_UNPRIV_BIN="/tmp/test-usr-dump"
MAKE_DUMP_SCRIPT="/tmp/make-dump"
# Unset $PAGER so we don't have to use --no-pager everywhere
export PAGER=
at_exit() {
rm -fv -- "$CORE_TEST_BIN" "$CORE_TEST_UNPRIV_BIN" "$MAKE_DUMP_SCRIPT"
rm -fv -- "$CORE_TEST_BIN" "$CORE_TEST_UNPRIV_BIN" "$MAKE_DUMP_SCRIPT" "$MAKE_STACKTRACE_DUMP"
}
trap at_exit EXIT
@@ -225,3 +227,32 @@ systemd-run -t --property CoredumpFilter=default ls /tmp
(! coredumpctl dump --output=/dev/null --output=/dev/null "$CORE_TEST_BIN")
(! coredumpctl debug --debugger=/bin/false)
(! coredumpctl debug --debugger=/bin/true --debugger-arguments='"')
# Test for EnterNamespace= feature
if pkgconf --atleast-version 0.192 libdw ; then
# dwfl_set_sysroot() is supported only in libdw-0.192 or newer.
cat >"$MAKE_STACKTRACE_DUMP" <<END
#!/bin/bash
mount -t tmpfs tmpfs /tmp
gcc -xc -O0 -g -o $CORE_STACKTRACE_TEST_BIN - <<EOF
void baz(void) { int *x = 0; *x = 42; }
void bar(void) { baz(); }
void foo(void) { bar(); }
int main(void) { foo(); return 0;}
EOF
$CORE_STACKTRACE_TEST_BIN
END
chmod +x "$MAKE_STACKTRACE_DUMP"
mkdir -p /run/systemd/coredump.conf.d/
printf '[Coredump]\nEnterNamespace=no' >/run/systemd/coredump.conf.d/99-enter-namespace.conf
unshare --pid --fork --mount-proc --mount --uts --ipc --net /bin/bash -c "$MAKE_STACKTRACE_DUMP" || :
timeout 30 bash -c "until coredumpctl -1 info $CORE_STACKTRACE_TEST_BIN | grep -zvqE 'baz.*bar.*foo'; do sleep .2; done"
printf '[Coredump]\nEnterNamespace=yes' >/run/systemd/coredump.conf.d/99-enter-namespace.conf
unshare --pid --fork --mount-proc --mount --uts --ipc --net /bin/bash -c "$MAKE_STACKTRACE_DUMP" || :
timeout 30 bash -c "until coredumpctl -1 info $CORE_STACKTRACE_TEST_BIN | grep -zqE 'baz.*bar.*foo'; do sleep .2; done"
else
echo "libdw doesn't not support setting sysroot, skipping EnterNamespace= test"
fi