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selftests: mptcp: simult_flow: test name in pcap file

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To be able to easily find out which pcap was produced by which test, the
selftest name is now added to the pcap file, similar to the other tests.

While at it, print the prefix name to be able to find which capture
files have been produced by which test after several runs. This prefix
was not printed anywhere before.

Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260812-net-next-mptcp-misc-feat-7-3-v1-8-1905a818f6cb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Matthieu Baerts (NGI0)
2026-08-12 16:55:43 +02:00
committed by Jakub Kicinski
parent 158765a0e5
commit a574bd9b61
1 changed files with 7 additions and 2 deletions
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9
tools/testing/selftests/net/mptcp/simult_flows.sh
View File

@@ -24,6 +24,7 @@ small=""
sout=""
cout=""
capout=""
capprefix=""
size=0
usage() {
@@ -70,6 +71,11 @@ setup()
mptcp_lib_ns_init ns1 ns2 ns3
if $capture; then
capprefix="simult_flows-${ns1:4}"
mptcp_lib_pr_info "pcap will have this prefix: ${capprefix}-"
fi
ip link add ns1eth1 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth2 netns "$ns2"
ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth1 netns "$ns3"
@@ -136,14 +142,13 @@ do_transfer()
if $capture; then
local capuser
local rndh="${ns1:4}"
if [ -z $SUDO_USER ] ; then
capuser=""
else
capuser="-Z $SUDO_USER"
fi
local capfile="${rndh}-${port}"
local capfile="${capprefix}-${port}"
local capopt="-i any -s 65535 -B 32768 ${capuser}"
ip netns exec ${ns3} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 &