libvirt/tests/daemon-conf

#!/bin/sh
# Get coverage of libvirtd's config-parsing code.

test -z "$srcdir" && srcdir=$(pwd)
LC_ALL=C
. "$srcdir/test-lib.sh"

if test "$verbose" = yes; then
  $abs_top_builddir/daemon/libvirtd --version
fi

test_intro "$this_test"

test -z "$CONFIG_HEADER" && CONFIG_HEADER="$abs_top_builddir/config.h"

grep '^#define WITH_QEMU 1' "$CONFIG_HEADER" > /dev/null ||
  skip_test_ "configured without QEMU support"

conf="$abs_top_srcdir/daemon/libvirtd.conf"

# Ensure that each commented out PARAMETER = VALUE line has the expected form.
grep -v '\"PARAMETER = VALUE\"' "$conf" | grep '[a-z_]  *=  *[^ ]' | grep -vE '^#[a-z_]+ = ' \
  && { echo "$0: found unexpected lines (above) in $conf" 1>&2; exit 1; }

# Start with the sample libvirtd.conf file, uncommenting all real directives.
sed -n 's/^#\([^ #]\)/\1/p' "$conf" > tmp.conf

sed -e "s/^\(unix_sock_group =\).*/\1 \"$USER\"/g" tmp.conf > k
mv k tmp.conf

# Iterate through that list of directives, corrupting one RHS at a
# time and running libvirtd with the resulting config.  Each libvirtd
# invocation must fail.
n=$(wc -l < tmp.conf)
i=0
fail=0
while :; do
  i=$(expr $i + 1)

  param_name=$(sed -n "$i"'s/ = .*//p' tmp.conf)
  rhs=$(sed -n "$i"'s/.* = \(.*\)/\1/p' tmp.conf)
  f=in$i.conf
  case $rhs in
    # Change an RHS that starts with '"' or '[' to "3".
    [[\"]*) sed "$i"'s/ = [["].*/ = 3/' tmp.conf > $f;;
    # Change an RHS that starts with a digit to the string '"foo"'.
    [0-9]*) sed "$i"'s/ = [0-9].*/ = "foo"/' tmp.conf > $f;;
  esac

  # Run libvirtd, expecting it to fail.
  $abs_top_builddir/daemon/libvirtd --pid-file=pid-file --config=$f 2> err && fail=1

  case $rhs in
    # '"'*) msg='should be a string';;
    '"'*) msg='invalid type: got long; expected string';;
    [0-9]*) msg='invalid type: got string; expected long';;
    '['*) msg='must be a string or list of strings';;
    *) echo "unexpected RHS: $rhs" 1>&2; fail=1;;
  esac

  test $i = $n && break

  # Check that the diagnostic we want appears
  grep "$msg" err 1>/dev/null 2>&1
  RET=$?
  test_result $i "corrupted config $param_name" $RET
  test "$RET" = "0" || fail=1
done

# Run with the unmodified config file.
sleep_secs=2

# Be careful to specify a non-default socket directory:
sed 's,^unix_sock_dir.*,unix_sock_dir="'"$(pwd)"'",' tmp.conf > k || fail=1
mv k tmp.conf || fail=1

# Also, specify a test-specific log directory:
sed 's,^log_outputs.*,log_outputs="3:file:'"$(pwd)/log"'",' tmp.conf > k \
    || fail=1
mv k tmp.conf || fail=1

# Unix socket max path size is 108 on linux. If the generated sock path
# exceeds this, the test will fail, so skip it if CWD is too long
SOCKPATH=`pwd`/libvirt-sock
if test 108 -lt `echo $SOCKPATH | wc -c`; then
    skip_test_ "CWD too long"
fi

# Replace the invalid host_uuid with one that is valid and
# relax audit_level from 2 to 1, otherwise libvirtd will report an error
# when auditing is disabled on the host or during compilation
sed 's/^\(host_uuid =.*\)0"$/\11"/; s/^\(audit_level =.*\)2$/\1 1/' tmp.conf > k
mv k tmp.conf

$abs_top_builddir/daemon/libvirtd --pid-file=pid-file --config=tmp.conf \
    > log 2>&1 & pid=$!
sleep $sleep_secs
kill $pid

RET=0
# Expect an orderly shut-down and successful exit.
wait $pid || RET=1

test_result $i "valid config file (sleeping $sleep_secs seconds)" $RET
test $RET = 0 || fail=1

test_final $i $fail

# "cat log" would print this for non-root:
#   Cannot set group when not running as root
#   Shutting down on signal 15
# And normally, we'd require that output, but obviously
# it'd be different for root.

exit $fail