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Message-Id: <20231213213735.434249-3-thinker.li@gmail.com>
Date: Wed, 13 Dec 2023 13:37:35 -0800
From: thinker.li@...il.com
To: netdev@...r.kernel.org,
	martin.lau@...ux.dev,
	kernel-team@...a.com,
	davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	dsahern@...nel.org,
	edumazet@...gle.com
Cc: sinquersw@...il.com,
	kuifeng@...a.com,
	Kui-Feng Lee <thinker.li@...il.com>,
	Hangbin Liu <liuhangbin@...il.com>
Subject: [PATCH net-next v3 2/2] selftests: fib_tests: Add tests for toggling between w/ and w/o expires.

From: Kui-Feng Lee <thinker.li@...il.com>

Make sure that toggling routes between w/ expires and w/o expires works
properly with GC list.

When a route with expires is replaced by a permanent route, the entry
should be removed from the gc list. When a permanent routes is replaced by
a temporary route, the new entry should be added to the gc list. The new
tests check if these basic operators work properly.

Signed-off-by: Kui-Feng Lee <thinker.li@...il.com>
Cc: Hangbin Liu <liuhangbin@...il.com>
---
 tools/testing/selftests/net/fib_tests.sh | 82 +++++++++++++++++++++++-
 1 file changed, 80 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh
index 66d0db7a2614..337d0febd796 100755
--- a/tools/testing/selftests/net/fib_tests.sh
+++ b/tools/testing/selftests/net/fib_tests.sh
@@ -785,6 +785,8 @@ fib6_gc_test()
 	    ret=0
 	fi
 
+	log_test $ret 0 "ipv6 route garbage collection"
+
 	# Permanent routes
 	for i in $(seq 1 5000); do
 	    $IP -6 route add 2001:30::$i \
@@ -806,9 +808,85 @@ fib6_gc_test()
 	    ret=0
 	fi
 
-	set +e
+	log_test $ret 0 "ipv6 route garbage collection (with permanent routes)"
 
-	log_test $ret 0 "ipv6 route garbage collection"
+	# Delete permanent routes
+	for i in $(seq 1 5000); do
+	    $IP -6 route del 2001:30::$i \
+		via 2001:10::2 dev dummy_10
+	done
+
+	# Permanent routes
+	for i in $(seq 1 100); do
+	    # Expire route after $EXPIRE seconds
+	    $IP -6 route add 2001:20::$i \
+		via 2001:10::2 dev dummy_10
+	done
+	# Replace with temporary routes
+	for i in $(seq 1 100); do
+	    # Expire route after $EXPIRE seconds
+	    $IP -6 route replace 2001:20::$i \
+		via 2001:10::2 dev dummy_10 expires $EXPIRE
+	done
+	N_EXP_SLEEP=$($IP -6 route list |grep expires|wc -l)
+	if [ $N_EXP_SLEEP -ne 100 ]; then
+	    echo "FAIL: expected 100 routes with expires, got $N_EXP_SLEEP"
+	    ret=1
+	else
+	    ret=0
+	fi
+
+	if [ $ret -eq 0 ]; then
+	    sleep $(($EXPIRE * 2 + 1))
+	    N_EXP_SLEEP=$($IP -6 route list |grep expires|wc -l)
+	    if [ $N_EXP_SLEEP -ne 0 ]; then
+		echo "FAIL: expected 0 routes with expires," \
+		     "got $N_EXP_SLEEP"
+		ret=1
+	    else
+		ret=0
+	    fi
+	fi
+
+	if [ $ret -eq 0 ]; then
+	    PERM_BASE=$($IP -6 route list |grep -v expires|wc -l)
+	    # Temporary routes
+	    for i in $(seq 1 100); do
+		# Expire route after $EXPIRE seconds
+		$IP -6 route add 2001:20::$i \
+		    via 2001:10::2 dev dummy_10 expires $EXPIRE
+	    done
+	    # Replace with permanent routes
+	    for i in $(seq 1 100); do
+		# Expire route after $EXPIRE seconds
+		$IP -6 route replace 2001:20::$i \
+		    via 2001:10::2 dev dummy_10
+	    done
+	    N_EXP_SLEEP=$($IP -6 route list |grep expires|wc -l)
+	    if [ $N_EXP_SLEEP -ne 0 ]; then
+		echo "FAIL: expected 0 routes with expires," \
+		 "got $N_EXP_SLEEP"
+		ret=1
+	    else
+		ret=0
+	    fi
+	fi
+	if [ $ret -eq 0 ]; then
+	    sleep $(($EXPIRE * 2 + 1))
+	    N_EXP_PERM=$($IP -6 route list |grep -v expires|wc -l)
+	    N_EXP_PERM=$(($N_EXP_PERM - $PERM_BASE))
+	    if [ $N_EXP_PERM -ne 100 ]; then
+		echo "FAIL: expected 100 permanent routes," \
+		     "got $N_EXP_PERM"
+		ret=1
+	    else
+		ret=0
+	    fi
+	fi
+
+	log_test $ret 0 "ipv6 route garbage collection (replace with permanent)"
+
+	set +e
 
 	cleanup &> /dev/null
 }
-- 
2.34.1


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