From 0fe663b2a815dcb41431543940ec51408f418392 Mon Sep 17 00:00:00 2001 From: Kristof Provost Date: Thu, 16 Nov 2023 17:06:29 +0100 Subject: [PATCH] pf: always create multihomed states as floating When we create a new state for multihomed sctp connections (i.e. based on INIT/INIT_ACK or ASCONF parameters) we cannot know what interfaces we'll be seeing that traffic on. Make those states floating, irrespective of state policy. MFC after: 1 week Sponsored by: Orange Business Services --- sys/netpfil/pf/pf.c | 8 ++++++-- tests/sys/netpfil/pf/sctp.py | 5 +++-- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/sys/netpfil/pf/pf.c b/sys/netpfil/pf/pf.c index 9cb5fe03b5c2..a9870ebe166b 100644 --- a/sys/netpfil/pf/pf.c +++ b/sys/netpfil/pf/pf.c @@ -6131,8 +6131,12 @@ pf_sctp_multihome_delayed(struct pf_pdesc *pd, int off, struct pfi_kkif *kif, j->pd.sctp_flags |= PFDESC_SCTP_ADD_IP; PF_RULES_RLOCK(); sm = NULL; - /* XXX: May generated unwanted abort if we try to insert a duplicate state. */ - ret = pf_test_rule(&r, &sm, kif, + /* + * New connections need to be floating, because + * we cannot know what interfaces it will use. + * That's why we pass V_pfi_all rather than kif. + */ + ret = pf_test_rule(&r, &sm, V_pfi_all, j->m, off, &j->pd, &ra, &rs, NULL); PF_RULES_RUNLOCK(); SDT_PROBE4(pf, sctp, multihome, test, kif, r, j->m, ret); diff --git a/tests/sys/netpfil/pf/sctp.py b/tests/sys/netpfil/pf/sctp.py index 5db52dd993f2..6042badffb64 100644 --- a/tests/sys/netpfil/pf/sctp.py +++ b/tests/sys/netpfil/pf/sctp.py @@ -372,6 +372,7 @@ def test_permutation(self): ToolsHelper.print_output("/sbin/pfctl -e") ToolsHelper.pf_rules([ + "set state-policy if-bound", "block proto sctp", "pass inet proto sctp to 192.0.2.0/24"]) @@ -386,9 +387,9 @@ def test_permutation(self): # Check that we have a state for 192.0.2.3 and 192.0.2.2 to 192.0.2.1, but also to 192.0.2.4 states = ToolsHelper.get_output("/sbin/pfctl -ss") print(states) - assert re.search(r"all sctp 192.0.2.1:.*192.0.2.3:1234", states) + assert re.search(r".*sctp 192.0.2.1:.*192.0.2.3:1234", states) assert re.search(r"all sctp 192.0.2.1:.*192.0.2.2:1234", states) - assert re.search(r"all sctp 192.0.2.4:.*192.0.2.3:1234", states) + assert re.search(r".*sctp 192.0.2.4:.*192.0.2.3:1234", states) assert re.search(r"all sctp 192.0.2.4:.*192.0.2.2:1234", states) class TestSCTPv6(VnetTestTemplate):