selftests: nft_concat_range: add test for reload with no element add/del

commit eda0cf1202acf1ef47f93d8f92d4839213431424 upstream.

Add a specific test for the reload issue fixed with
commit 23c54263efd7cb ("netfilter: nft_set_pipapo: allocate pcpu scratch maps on clone").

Add to set, then flush set content + restore without other add/remove in
the transaction.

On kernels before the fix, this test case fails:
  net,mac with reload    [FAIL]

Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Florian Westphal 2022-01-26 12:54:54 +01:00 committed by Greg Kroah-Hartman
parent 5577273135
commit 4889d6ee9e

View File

@ -27,7 +27,7 @@ TYPES="net_port port_net net6_port port_proto net6_port_mac net6_port_mac_proto
net_port_mac_proto_net"
# Reported bugs, also described by TYPE_ variables below
BUGS="flush_remove_add"
BUGS="flush_remove_add reload"
# List of possible paths to pktgen script from kernel tree for performance tests
PKTGEN_SCRIPT_PATHS="
@ -337,6 +337,23 @@ TYPE_flush_remove_add="
display Add two elements, flush, re-add
"
TYPE_reload="
display net,mac with reload
type_spec ipv4_addr . ether_addr
chain_spec ip daddr . ether saddr
dst addr4
src mac
start 1
count 1
src_delta 2000
tools sendip nc bash
proto udp
race_repeat 0
perf_duration 0
"
# Set template for all tests, types and rules are filled in depending on test
set_template='
flush ruleset
@ -1455,6 +1472,59 @@ test_bug_flush_remove_add() {
nft flush ruleset
}
# - add ranged element, check that packets match it
# - reload the set, check packets still match
test_bug_reload() {
setup veth send_"${proto}" set || return ${KSELFTEST_SKIP}
rstart=${start}
range_size=1
for i in $(seq "${start}" $((start + count))); do
end=$((start + range_size))
# Avoid negative or zero-sized port ranges
if [ $((end / 65534)) -gt $((start / 65534)) ]; then
start=${end}
end=$((end + 1))
fi
srcstart=$((start + src_delta))
srcend=$((end + src_delta))
add "$(format)" || return 1
range_size=$((range_size + 1))
start=$((end + range_size))
done
# check kernel does allocate pcpu sctrach map
# for reload with no elemet add/delete
( echo flush set inet filter test ;
nft list set inet filter test ) | nft -f -
start=${rstart}
range_size=1
for i in $(seq "${start}" $((start + count))); do
end=$((start + range_size))
# Avoid negative or zero-sized port ranges
if [ $((end / 65534)) -gt $((start / 65534)) ]; then
start=${end}
end=$((end + 1))
fi
srcstart=$((start + src_delta))
srcend=$((end + src_delta))
for j in $(seq ${start} $((range_size / 2 + 1)) ${end}); do
send_match "${j}" $((j + src_delta)) || return 1
done
range_size=$((range_size + 1))
start=$((end + range_size))
done
nft flush ruleset
}
test_reported_issues() {
eval test_bug_"${subtest}"
}