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selftests: tcp: Remove broken SNMP assumptions for TCP AO self-connect tests.

Browse source 
tcp_ao/self-connect.c checked the following SNMP stats before/after
connect() to confirm that the test exercises the simultaneous connect()
path.

  * TCPChallengeACK
  * TCPSYNChallenge

But the stats should not be counted for self-connect in the first place,
and the assumption is no longer true.

Let's remove the check.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Dmitry Safonov <dima@arista.com>
Link: https://patch.msgid.link/20240710171246.87533-3-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Kuniyuki Iwashima 2024-07-10 10:12:46 -07:00 committed by Jakub Kicinski
parent 23e89e8ee7
commit b3bb4d23a4
1 changed files with 0 additions and 18 deletions
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18
tools/testing/selftests/net/tcp_ao/self-connect.c
View file

@ -30,8 +30,6 @@ static void setup_lo_intf(const char *lo_intf)
static void tcp_self_connect(const char *tst, unsigned int port,
bool different_keyids, bool check_restore)
{
uint64_t before_challenge_ack, after_challenge_ack;
uint64_t before_syn_challenge, after_syn_challenge;
struct tcp_ao_counters before_ao, after_ao;
uint64_t before_aogood, after_aogood;
struct netstat *ns_before, *ns_after;
@ -62,8 +60,6 @@ static void tcp_self_connect(const char *tst, unsigned int port,
ns_before = netstat_read();
before_aogood = netstat_get(ns_before, "TCPAOGood", NULL);
before_challenge_ack = netstat_get(ns_before, "TCPChallengeACK", NULL);
before_syn_challenge = netstat_get(ns_before, "TCPSYNChallenge", NULL);
if (test_get_tcp_ao_counters(sk, &before_ao))
test_error("test_get_tcp_ao_counters()");
@ -82,8 +78,6 @@ static void tcp_self_connect(const char *tst, unsigned int port,
ns_after = netstat_read();
after_aogood = netstat_get(ns_after, "TCPAOGood", NULL);
after_challenge_ack = netstat_get(ns_after, "TCPChallengeACK", NULL);
after_syn_challenge = netstat_get(ns_after, "TCPSYNChallenge", NULL);
if (test_get_tcp_ao_counters(sk, &after_ao))
test_error("test_get_tcp_ao_counters()");
if (!check_restore) {
@ -98,18 +92,6 @@ static void tcp_self_connect(const char *tst, unsigned int port,
close(sk);
return;
}
if (after_challenge_ack <= before_challenge_ack ||
after_syn_challenge <= before_syn_challenge) {
/*
* It's also meant to test simultaneous open, so check
* these counters as well.
*/
test_fail("%s: Didn't challenge SYN or ACK: %zu <= %zu OR %zu <= %zu",
tst, after_challenge_ack, before_challenge_ack,
after_syn_challenge, before_syn_challenge);
close(sk);
return;
}
if (test_tcp_ao_counters_cmp(tst, &before_ao, &after_ao, TEST_CNT_GOOD)) {
close(sk);