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-rw-r--r--sys/conf/files4
-rw-r--r--sys/net/pf.c56
-rw-r--r--sys/net/pfvar.h3
-rw-r--r--sys/net/pfvar_priv.h4
4 files changed, 62 insertions, 5 deletions
diff --git a/sys/conf/files b/sys/conf/files
index 7ad6affb5c2..f4fabbed9bb 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -1,4 +1,4 @@
-# $OpenBSD: files,v 1.719 2022/11/06 15:36:13 patrick Exp $
+# $OpenBSD: files,v 1.720 2022/12/22 05:59:26 dlg Exp $
# $NetBSD: files,v 1.87 1996/05/19 17:17:50 jonathan Exp $
# @(#)files.newconf 7.5 (Berkeley) 5/10/93
@@ -587,7 +587,7 @@ file miscfs/fuse/fuse_vfsops.c fuse
file miscfs/fuse/fuse_vnops.c fuse
file miscfs/fuse/fusebuf.c fuse
-pseudo-device pf: ifnet
+pseudo-device pf: ifnet, stoeplitz
file net/pf.c pf needs-flag
file net/pf_norm.c pf
file net/pf_ruleset.c pf
diff --git a/sys/net/pf.c b/sys/net/pf.c
index 4978c10d2ff..975e7b8f71b 100644
--- a/sys/net/pf.c
+++ b/sys/net/pf.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: pf.c,v 1.1160 2022/12/21 03:02:34 dlg Exp $ */
+/* $OpenBSD: pf.c,v 1.1161 2022/12/22 05:59:27 dlg Exp $ */
/*
* Copyright (c) 2001 Daniel Hartmeier
@@ -60,6 +60,7 @@
#include <net/if_var.h>
#include <net/if_types.h>
#include <net/route.h>
+#include <net/toeplitz.h>
#include <netinet/in.h>
#include <netinet/in_var.h>
@@ -238,6 +239,9 @@ int pf_addr_wrap_neq(struct pf_addr_wrap *,
struct pf_addr_wrap *);
int pf_compare_state_keys(struct pf_state_key *,
struct pf_state_key *, struct pfi_kif *, u_int);
+u_int16_t pf_pkt_hash(sa_family_t, uint8_t,
+ const struct pf_addr *, const struct pf_addr *,
+ uint16_t, uint16_t);
int pf_find_state(struct pf_pdesc *,
struct pf_state_key_cmp *, struct pf_state **);
int pf_src_connlimit(struct pf_state **);
@@ -690,6 +694,8 @@ pf_state_compare_key(struct pf_state_key *a, struct pf_state_key *b)
{
int diff;
+ if ((diff = a->hash - b->hash) != 0)
+ return (diff);
if ((diff = a->proto - b->proto) != 0)
return (diff);
if ((diff = a->af - b->af) != 0)
@@ -944,6 +950,7 @@ pf_state_key_setup(struct pf_pdesc *pd, struct pf_state_key **skw,
sk1->proto = pd->proto;
sk1->af = pd->af;
sk1->rdomain = pd->rdomain;
+ sk1->hash = pd->hash;
if (rtableid >= 0)
wrdom = rtable_l2(rtableid);
@@ -975,6 +982,8 @@ pf_state_key_setup(struct pf_pdesc *pd, struct pf_state_key **skw,
sk2->proto = pd->proto;
sk2->af = pd->naf;
sk2->rdomain = wrdom;
+ sk2->hash = pf_pkt_hash(sk2->af, sk2->proto,
+ &sk2->addr[0], &sk2->addr[1], sk2->port[0], sk2->port[1]);
} else
sk2 = pf_state_key_ref(sk1);
@@ -1435,6 +1444,9 @@ pf_state_import(const struct pfsync_state *sp, int flags)
skw->proto = sp->proto;
if (!(skw->af = sp->key[PF_SK_WIRE].af))
skw->af = sp->af;
+ skw->hash = pf_pkt_hash(skw->af, skw->proto,
+ &skw->addr[0], &skw->addr[1], skw->port[0], skw->port[1]);
+
if (sks != skw) {
sks->addr[0] = sp->key[PF_SK_STACK].addr[0];
sks->addr[1] = sp->key[PF_SK_STACK].addr[1];
@@ -1463,6 +1475,9 @@ pf_state_import(const struct pfsync_state *sp, int flags)
goto cleanup;
}
+ sks->hash = pf_pkt_hash(sks->af, sks->proto,
+ &sks->addr[0], &sks->addr[1], sks->port[0], sks->port[1]);
+
} else if ((sks->af != AF_INET) && (sks->af != AF_INET6)) {
error = EINVAL;
goto cleanup;
@@ -5310,6 +5325,9 @@ pf_icmp_state_lookup(struct pf_pdesc *pd, struct pf_state_key_cmp *key,
pd->dst, pd->af, multi))
return (PF_DROP);
+ key->hash = pf_pkt_hash(pd->af, pd->proto,
+ pd->src, pd->dst, 0, 0);
+
action = pf_find_state(pd, key, state);
if (action != PF_MATCH)
return (action);
@@ -5579,6 +5597,8 @@ pf_test_state_icmp(struct pf_pdesc *pd, struct pf_state **state,
pf_addrcpy(&key.addr[pd2.didx], pd2.dst, key.af);
key.port[pd2.sidx] = th->th_sport;
key.port[pd2.didx] = th->th_dport;
+ key.hash = pf_pkt_hash(pd2.af, pd2.proto,
+ pd2.src, pd2.dst, th->th_sport, th->th_dport);
action = pf_find_state(&pd2, &key, state);
if (action != PF_MATCH)
@@ -5757,6 +5777,8 @@ pf_test_state_icmp(struct pf_pdesc *pd, struct pf_state **state,
pf_addrcpy(&key.addr[pd2.didx], pd2.dst, key.af);
key.port[pd2.sidx] = uh->uh_sport;
key.port[pd2.didx] = uh->uh_dport;
+ key.hash = pf_pkt_hash(pd2.af, pd2.proto,
+ pd2.src, pd2.dst, uh->uh_sport, uh->uh_dport);
action = pf_find_state(&pd2, &key, state);
if (action != PF_MATCH)
@@ -6091,6 +6113,8 @@ pf_test_state_icmp(struct pf_pdesc *pd, struct pf_state **state,
pf_addrcpy(&key.addr[pd2.sidx], pd2.src, key.af);
pf_addrcpy(&key.addr[pd2.didx], pd2.dst, key.af);
key.port[0] = key.port[1] = 0;
+ key.hash = pf_pkt_hash(pd2.af, pd2.proto,
+ pd2.src, pd2.dst, 0, 0);
action = pf_find_state(&pd2, &key, state);
if (action != PF_MATCH)
@@ -7019,6 +7043,32 @@ pf_walk_header6(struct pf_pdesc *pd, struct ip6_hdr *h, u_short *reason)
}
#endif /* INET6 */
+u_int16_t
+pf_pkt_hash(sa_family_t af, uint8_t proto,
+ const struct pf_addr *src, const struct pf_addr *dst,
+ uint16_t sport, uint16_t dport)
+{
+ uint32_t hash;
+
+ hash = src->addr32[0] ^ dst->addr32[0];
+#ifdef INET6
+ if (af == AF_INET6) {
+ hash ^= src->addr32[1] ^ dst->addr32[1];
+ hash ^= src->addr32[2] ^ dst->addr32[2];
+ hash ^= src->addr32[3] ^ dst->addr32[3];
+ }
+#endif
+
+ switch (proto) {
+ case IPPROTO_TCP:
+ case IPPROTO_UDP:
+ hash ^= sport ^ dport;
+ break;
+ }
+
+ return stoeplitz_n32(hash);
+}
+
int
pf_setup_pdesc(struct pf_pdesc *pd, sa_family_t af, int dir,
struct pfi_kif *kif, struct mbuf *m, u_short *reason)
@@ -7206,6 +7256,9 @@ pf_setup_pdesc(struct pf_pdesc *pd, sa_family_t af, int dir,
if (pd->dport)
pd->odport = pd->ndport = *pd->dport;
+ pd->hash = pf_pkt_hash(pd->af, pd->proto,
+ pd->src, pd->dst, pd->osport, pd->odport);
+
return (PF_PASS);
}
@@ -7486,6 +7539,7 @@ pf_test(sa_family_t af, int fwdir, struct ifnet *ifp, struct mbuf **m0)
pf_addrcpy(&key.addr[pd.didx], pd.dst, key.af);
key.port[pd.sidx] = pd.osport;
key.port[pd.didx] = pd.odport;
+ key.hash = pd.hash;
PF_STATE_ENTER_READ();
action = pf_find_state(&pd, &key, &s);
diff --git a/sys/net/pfvar.h b/sys/net/pfvar.h
index 719ad0a8728..b169f0a0510 100644
--- a/sys/net/pfvar.h
+++ b/sys/net/pfvar.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: pfvar.h,v 1.524 2022/12/21 02:23:10 dlg Exp $ */
+/* $OpenBSD: pfvar.h,v 1.525 2022/12/22 05:59:27 dlg Exp $ */
/*
* Copyright (c) 2001 Daniel Hartmeier
@@ -704,6 +704,7 @@ struct pf_state_key_cmp {
struct pf_addr addr[2];
u_int16_t port[2];
u_int16_t rdomain;
+ u_int16_t hash;
sa_family_t af;
u_int8_t proto;
};
diff --git a/sys/net/pfvar_priv.h b/sys/net/pfvar_priv.h
index cd5b308e4dc..51cc0f66f25 100644
--- a/sys/net/pfvar_priv.h
+++ b/sys/net/pfvar_priv.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: pfvar_priv.h,v 1.26 2022/12/21 02:23:10 dlg Exp $ */
+/* $OpenBSD: pfvar_priv.h,v 1.27 2022/12/22 05:59:27 dlg Exp $ */
/*
* Copyright (c) 2001 Daniel Hartmeier
@@ -52,6 +52,7 @@ struct pf_state_key {
struct pf_addr addr[2];
u_int16_t port[2];
u_int16_t rdomain;
+ u_int16_t hash;
sa_family_t af;
u_int8_t proto;
@@ -254,6 +255,7 @@ struct pf_pdesc {
u_int16_t *dport;
u_int16_t osport;
u_int16_t odport;
+ u_int16_t hash;
u_int16_t nsport; /* src port after NAT */
u_int16_t ndport; /* dst port after NAT */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 15:22:21 +0000