diff mbox series

[net-next,4/7] selftests: netfilter: nft_flowtable.sh: re-run with random mtu sizes

Message ID 20240423130604.7013-5-fw@strlen.de (mailing list archive)
State Accepted
Commit f84ab634904cc491239a5165d5d7ded0acde02d5
Delegated to: Netdev Maintainers
Headers show
Series selftest: netfilter: additional cleanups | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 8 this patch: 8
netdev/build_tools success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 4 maintainers not CCed: kadlec@netfilter.org linux-kselftest@vger.kernel.org coreteam@netfilter.org shuah@kernel.org
netdev/build_clang success Errors and warnings before: 8 this patch: 8
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success net selftest script(s) already in Makefile
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 8 this patch: 8
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 29 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-04-24--15-00 (tests: 995)

Commit Message

Florian Westphal April 23, 2024, 1:05 p.m. UTC 
Now that the test runs much faster, also re-run it with random MTU sizes
for the different link legs.  flowtable should pass ip fragments, if
any, up to the normal forwarding path.

Signed-off-by: Florian Westphal <fw@strlen.de>
---
 .../selftests/net/netfilter/nft_flowtable.sh  | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/net/netfilter/nft_flowtable.sh b/tools/testing/selftests/net/netfilter/nft_flowtable.sh
index d765c65c31f3..8b5a3a7e22f0 100755
--- a/tools/testing/selftests/net/netfilter/nft_flowtable.sh
+++ b/tools/testing/selftests/net/netfilter/nft_flowtable.sh
@@ -100,6 +100,14 @@  if ! ip -net $nsr2 link set veth1 mtu $rmtu; then
 	exit 1
 fi
 
+if ! ip -net "$nsr1" link set veth1 mtu "$lmtu"; then
+	exit 1
+fi
+
+if ! ip -net "$nsr2" link set veth0 mtu "$lmtu"; then
+	exit 1
+fi
+
 ip -net $ns2 link set eth0 mtu $rmtu
 
 # transfer-net between nsr1 and nsr2.
@@ -633,4 +641,15 @@  else
 	ip netns exec "$nsr1" cat /proc/net/xfrm_stat 1>&2
 fi
 
+if [ x"$1" = x ]; then
+	low=1280
+	mtu=$((65536 - low))
+	o=$(((RANDOM%mtu) + low))
+	l=$(((RANDOM%mtu) + low))
+	r=$(((RANDOM%mtu) + low))
+
+	echo "re-run with random mtus: -o $o -l $l -r $r"
+	$0 -o "$o" -l "$l" -r "$r"
+fi
+
 exit $ret