Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 206 insertions, 0 deletions

diff --git a/ctdb/tests/UNIT/eventscripts/stubs/ss b/ctdb/tests/UNIT/eventscripts/stubs/ss
new file mode 100755
index 0000000..c1199fe
--- /dev/null
+++ b/ctdb/tests/UNIT/eventscripts/stubs/ss
@@ -0,0 +1,206 @@
+#!/bin/sh
+
+prog="ss"
+
+usage()
+{
+	cat >&2 <<EOF
+Usage: $prog { -t|--tcp | -x|--unix } [options] [ FILTER ]
+
+A fake ss stub that prints items depending on the variables
+FAKE_NETSTAT_TCP_ESTABLISHED, FAKE_TCP_LISTEN,
+FAKE_NETSTAT_UNIX_LISTEN, depending on command-line options.
+
+Note that -n is ignored.
+
+EOF
+	exit 1
+}
+
+not_supported()
+{
+	echo "Options not supported in stub: $*" >&2
+	usage
+}
+
+############################################################
+
+#
+parse_filter()
+{
+	# Very limited implementation:
+	# We only expect to find || inside parentheses
+	# We don't expect to see && - it is implied by juxtaposition
+	# Operator for port comparison is ignored and assumed to be ==
+
+	# Build lists of source ports and source IP addresses where
+	# each entry is surrounded by '|' characters.  These lists can
+	# be easily "searched" using the POSIX prefix and suffix
+	# removal operators.
+	in_parens=false
+	sports="|"
+	srcs="|"
+
+	while [ -n "$1" ]; do
+		case "$1" in
+		\()
+			in_parens=true
+			shift
+			;;
+		\))
+			in_parens=false
+			shift
+			;;
+		\|\|)
+			if ! $in_parens; then
+				not_supported "|| in parentheses"
+			fi
+			shift
+			;;
+		sport)
+			p="${3#:}"
+			sports="${sports}${p}|"
+			shift 3
+			;;
+		src)
+			ip="${2#\[}"
+			ip="${ip%\]}"
+			srcs="${srcs}${ip}|"
+			shift 2
+			;;
+		*)
+			usage
+			;;
+		esac
+	done
+}
+
+# Check if socket has matches in both ok_ips and ok_ports
+filter_socket()
+{
+	ok_ips="$1"
+	ok_ports="$2"
+	socket="$3"
+
+	ip="${socket%:*}"
+	port="${socket##*:}"
+
+	if [ "$ok_ports" != "|" ] &&
+		[ "${ok_ports#*|"${port}"|}" = "$ok_ports" ]; then
+		return 1
+	fi
+	if [ "$ok_ips" != "|" ] && [ "${ok_ips#*|"${ip}"|}" = "$ok_ips" ]; then
+		return 1
+	fi
+
+	return 0
+}
+
+ss_tcp_established()
+{
+	if $header; then
+		echo "Recv-Q Send-Q Local Address:Port Peer Address:Port"
+	fi
+
+	# Yes, lose the quoting so we can do a hacky parsing job
+	# shellcheck disable=SC2048,SC2086
+	parse_filter $*
+
+	for i in $FAKE_NETSTAT_TCP_ESTABLISHED; do
+		src="${i%|*}"
+		dst="${i#*|}"
+		if filter_socket "$srcs" "$sports" "$src"; then
+			echo 0 0 "$src" "$dst"
+		fi
+	done
+
+	if [ -z "$FAKE_NETSTAT_TCP_ESTABLISHED_FILE" ]; then
+		return
+	fi
+	while read -r src dst; do
+		if filter_socket "$srcs" "$sports" "$src"; then
+			echo 0 0 "$src" "$dst"
+		fi
+	done <"$FAKE_NETSTAT_TCP_ESTABLISHED_FILE"
+}
+
+############################################################
+
+unix_listen()
+{
+	if $header; then
+		cat <<EOF
+Netid State Recv-Q Send-Q   Local Address:Port   Peer Address:Port"
+EOF
+	fi
+
+	# Yes, lose the quoting so we can do a hacky parsing job
+	# shellcheck disable=SC2048,SC2086
+	parse_filter $*
+
+	_n=12345
+	for _s in $FAKE_NETSTAT_UNIX_LISTEN; do
+		# ss matches Unix domain sockets as either src or
+		# sport.
+		if filter_socket "$srcs" "$sports" "${_s}:" ||
+			filter_socket "$srcs" "$sports" ":${_s}"; then
+			printf "u_str LISTEN 0 128   %s %d   * 0\n" "$_s" "$_n"
+			_n=$((_n + 1))
+		fi
+	done
+}
+
+############################################################
+
+# Defaults.
+tcp=false
+unix=false
+all=false
+listen=false
+header=true
+
+orig="$*"
+
+while getopts "txnalHh?" opt; do
+	case "$opt" in
+	t) tcp=true ;;
+	x) unix=true ;;
+	l) listen=true ;;
+	a) all=true ;;
+	H) header=false ;;
+	n) : ;;
+	\? | h) usage ;;
+	esac
+done
+shift $((OPTIND - 1))
+
+$tcp || $unix || not_supported "$*"
+if [ -z "$all" ]; then
+	nosupported "$*"
+fi
+
+if $tcp; then
+	if [ "$1" != "state" ] || [ "$2" != "established" ] || $listen; then
+		usage
+	fi
+
+	shift 2
+
+	# Yes, lose the quoting so we can do a hacky parsing job
+	# shellcheck disable=SC2048,SC2086
+	ss_tcp_established $*
+
+	exit
+fi
+
+if $unix; then
+	if ! $listen; then
+		not_supported "$orig"
+	fi
+
+	# Yes, lose the quoting so we can do a hacky parsing job
+	# shellcheck disable=SC2048,SC2086
+	unix_listen $*
+
+	exit
+fi