netdev - [PATCH net-next 02/10] selftests: forwarding: lib.sh: Validate NETIFS

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Message-ID: <4a7602678782a1f526bdcc895de437bebc96a695.1712940759.git.petrm@nvidia.com>
Date: Fri, 12 Apr 2024 19:03:05 +0200
From: Petr Machata <petrm@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
	<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
	<pabeni@...hat.com>, <netdev@...r.kernel.org>
CC: Ido Schimmel <idosch@...dia.com>, Shuah Khan <shuah@...nel.org>,
	<linux-kselftest@...r.kernel.org>, Petr Machata <petrm@...dia.com>,
	<mlxsw@...dia.com>, Benjamin Poirier <bpoirier@...dia.com>
Subject: [PATCH net-next 02/10] selftests: forwarding: lib.sh: Validate NETIFS

The variable should contain at least NUM_NETIFS interfaces, stored
as keys named "p$i", for i in `seq $NUM_NETIFS`.

Signed-off-by: Petr Machata <petrm@...dia.com>
Reviewed-by: Benjamin Poirier <bpoirier@...dia.com>
---
 tools/testing/selftests/net/forwarding/lib.sh | 22 ++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index 658e4e7bf4b9..3cbbc2fd4d7d 100644
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -273,11 +273,6 @@ if [[ "$REQUIRE_MTOOLS" = "yes" ]]; then
 	require_command mreceive
 fi
 
-if [[ ! -v NUM_NETIFS ]]; then
-	echo "SKIP: importer does not define \"NUM_NETIFS\""
-	exit $ksft_skip
-fi
-
 ##############################################################################
 # Command line options handling
 
@@ -296,6 +291,23 @@ done
 ##############################################################################
 # Network interfaces configuration
 
+if [[ ! -v NUM_NETIFS ]]; then
+	echo "SKIP: importer does not define \"NUM_NETIFS\""
+	exit $ksft_skip
+fi
+
+if (( NUM_NETIFS > ${#NETIFS[@]} )); then
+	echo "SKIP: Importer requires $NUM_NETIFS NETIFS, but only ${#NETIFS[@]} are defined (${NETIFS[@]})"
+	exit $ksft_skip
+fi
+
+for i in $(seq ${#NETIFS[@]}); do
+	if [[ ! ${NETIFS[p$i]} ]]; then
+		echo "SKIP: NETIFS[p$i] not given"
+		exit $ksft_skip
+	fi
+done
+
 create_netif_veth()
 {
 	local i
-- 
2.43.0