diff options
| author | Stuart Henderson <sthen@cvs.openbsd.org> | 2011-04-05 15:51:42 +0000 |
|---|---|---|
| committer | Stuart Henderson <sthen@cvs.openbsd.org> | 2011-04-05 15:51:42 +0000 |
| commit | f96caeef1639a64afe7c6e7ccce55880aed2507b (patch) | |
| tree | c950fdc7ab40c6bfe5e18ea934a4e7a3dcb463d8 /sys/net | |
| parent | b92c0168f8f97067797ab4c4fc3d202ba0891393 (diff) | |
handle ACK prioritization for v6, ok henning@
Diffstat (limited to 'sys/net')
| -rw-r--r-- | sys/net/pf.c | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/sys/net/pf.c b/sys/net/pf.c index a0fc7e6e0ea..f7b0e6404b2 100644 --- a/sys/net/pf.c +++ b/sys/net/pf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pf.c,v 1.734 2011/04/05 13:48:18 mikeb Exp $ */ +/* $OpenBSD: pf.c,v 1.735 2011/04/05 15:51:41 sthen Exp $ */ /* * Copyright (c) 2001 Daniel Hartmeier @@ -6021,6 +6021,7 @@ pf_test6(int fwdir, struct ifnet *ifp, struct mbuf **m0, union pf_headers hdrs; int off, hdrlen; int dir = (fwdir == PF_FWD) ? PF_OUT : fwdir; + u_int32_t qid, pqid = 0; if (!pf_status.running) return (PF_PASS); @@ -6098,6 +6099,8 @@ pf_test6(int fwdir, struct ifnet *ifp, struct mbuf **m0, switch (pd.proto) { case IPPROTO_TCP: { + if ((pd.hdr.tcp->th_flags & TH_ACK) && pd.p_len == 0) + pqid = 1; action = pf_normalize_tcp(dir, kif, m, 0, off, h, &pd); if (action == PF_DROP) goto done; @@ -6188,10 +6191,19 @@ done: } if (action != PF_DROP) { - if (s) + if (s) { pf_scrub_ip6(&m, s->min_ttl); - else + if (pqid || (pd.tos & IPTOS_LOWDELAY)) + qid = s->pqid; + else + qid = s->qid; + } else { pf_scrub_ip6(&m, r->min_ttl); + if (pqid || (pd.tos & IPTOS_LOWDELAY)) + qid = r->pqid; + else + qid = r->qid; + } } if (s && s->tag) pf_tag_packet(m, s ? s->tag : 0, s->rtableid[pd.didx]); @@ -6200,13 +6212,9 @@ done: m->m_pkthdr.pf.statekey = s->key[PF_SK_STACK]; #ifdef ALTQ - if (action == PF_PASS && s && s->qid) { - if (pd.tos & IPTOS_LOWDELAY) - m->m_pkthdr.pf.qid = s->pqid; - else - m->m_pkthdr.pf.qid = s->qid; - /* add hints for ecn */ - m->m_pkthdr.pf.hdr = h; + if (action == PF_PASS && qid) { + m->m_pkthdr.pf.qid = qid; + m->m_pkthdr.pf.hdr = h; /* add hints for ecn */ } #endif /* ALTQ */ |