From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 13/33] netfilter: conntrack: remove invert_tuple callback
Date: Tue, 29 Jan 2019 00:57:30 +0100 [thread overview]
Message-ID: <20190128235750.18412-14-pablo@netfilter.org> (raw)
In-Reply-To: <20190128235750.18412-1-pablo@netfilter.org>
From: Florian Westphal <fw@strlen.de>
Only used by icmp(v6). Prefer a direct call and remove this
function from the l4proto struct.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/nf_conntrack_l4proto.h | 11 +++++------
net/netfilter/nf_conntrack_core.c | 8 ++++++--
net/netfilter/nf_conntrack_proto_icmp.c | 5 ++---
net/netfilter/nf_conntrack_proto_icmpv6.c | 5 ++---
4 files changed, 15 insertions(+), 14 deletions(-)
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index 0d4b0398aeb9..6cec8337e684 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -27,12 +27,6 @@ struct nf_conntrack_l4proto {
/* protoinfo nlattr size, closes a hole */
u16 nlattr_size;
- /* Invert the per-proto part of the tuple: ie. turn xmit into reply.
- * Only used by icmp, most protocols use a generic version.
- */
- bool (*invert_tuple)(struct nf_conntrack_tuple *inverse,
- const struct nf_conntrack_tuple *orig);
-
/* Returns verdict for packet, or -1 for invalid. */
int (*packet)(struct nf_conn *ct,
struct sk_buff *skb,
@@ -95,6 +89,11 @@ bool icmpv6_pkt_to_tuple(const struct sk_buff *skb,
struct net *net,
struct nf_conntrack_tuple *tuple);
+bool nf_conntrack_invert_icmp_tuple(struct nf_conntrack_tuple *tuple,
+ const struct nf_conntrack_tuple *orig);
+bool nf_conntrack_invert_icmpv6_tuple(struct nf_conntrack_tuple *tuple,
+ const struct nf_conntrack_tuple *orig);
+
int nf_conntrack_icmpv4_error(struct nf_conn *tmpl,
struct sk_buff *skb,
unsigned int dataoff,
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index b71e271f2b44..d56cb0fc82b6 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -423,8 +423,12 @@ nf_ct_invert_tuple(struct nf_conntrack_tuple *inverse,
inverse->dst.protonum = orig->dst.protonum;
- if (unlikely(l4proto->invert_tuple))
- return l4proto->invert_tuple(inverse, orig);
+ switch (orig->dst.protonum) {
+ case IPPROTO_ICMP:
+ return nf_conntrack_invert_icmp_tuple(inverse, orig);
+ case IPPROTO_ICMPV6:
+ return nf_conntrack_invert_icmpv6_tuple(inverse, orig);
+ }
inverse->src.u.all = orig->dst.u.all;
inverse->dst.u.all = orig->src.u.all;
diff --git a/net/netfilter/nf_conntrack_proto_icmp.c b/net/netfilter/nf_conntrack_proto_icmp.c
index 805c1fe5b837..d28c1d7633b2 100644
--- a/net/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/netfilter/nf_conntrack_proto_icmp.c
@@ -54,8 +54,8 @@ static const u_int8_t invmap[] = {
[ICMP_ADDRESSREPLY] = ICMP_ADDRESS + 1
};
-static bool icmp_invert_tuple(struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_tuple *orig)
+bool nf_conntrack_invert_icmp_tuple(struct nf_conntrack_tuple *tuple,
+ const struct nf_conntrack_tuple *orig)
{
if (orig->dst.u.icmp.type >= sizeof(invmap) ||
!invmap[orig->dst.u.icmp.type])
@@ -347,7 +347,6 @@ static struct nf_proto_net *icmp_get_net_proto(struct net *net)
const struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp =
{
.l4proto = IPPROTO_ICMP,
- .invert_tuple = icmp_invert_tuple,
#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
.tuple_to_nlattr = icmp_tuple_to_nlattr,
.nlattr_tuple_size = icmp_nlattr_tuple_size,
diff --git a/net/netfilter/nf_conntrack_proto_icmpv6.c b/net/netfilter/nf_conntrack_proto_icmpv6.c
index 20cd55e55e41..2910dcdea134 100644
--- a/net/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/netfilter/nf_conntrack_proto_icmpv6.c
@@ -67,8 +67,8 @@ static const u_int8_t noct_valid_new[] = {
[ICMPV6_MLD2_REPORT - 130] = 1
};
-static bool icmpv6_invert_tuple(struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_tuple *orig)
+bool nf_conntrack_invert_icmpv6_tuple(struct nf_conntrack_tuple *tuple,
+ const struct nf_conntrack_tuple *orig)
{
int type = orig->dst.u.icmp.type - 128;
if (type < 0 || type >= sizeof(invmap) || !invmap[type])
@@ -358,7 +358,6 @@ static struct nf_proto_net *icmpv6_get_net_proto(struct net *net)
const struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 =
{
.l4proto = IPPROTO_ICMPV6,
- .invert_tuple = icmpv6_invert_tuple,
#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
.tuple_to_nlattr = icmpv6_tuple_to_nlattr,
.nlattr_tuple_size = icmpv6_nlattr_tuple_size,
--
2.11.0
next prev parent reply other threads:[~2019-01-28 23:57 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-28 23:57 [PATCH 00/33] Netfilter/IPVS updates for net-next Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 01/33] netfilter: nf_tables: prepare nft_object for lookups via hashtable Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 02/33] netfilter: nf_tables: handle nft_object lookups via rhltable Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 03/33] netfilter: nf_tables: add direct calls for all builtin expressions Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 04/33] netfilter: conntrack: remove helper hook again Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 05/33] netfilter: physdev: relax br_netfilter dependency Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 06/33] netfilter: nf_tables: Support RULE_ID reference in new rule Pablo Neira Ayuso
2019-01-29 5:24 ` Cong Wang
2019-01-29 8:09 ` Florian Westphal
2019-01-28 23:57 ` [PATCH 07/33] netfilter: conntrack: handle builtin l4proto packet functions via direct calls Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 08/33] netfilter: conntrack: handle icmp pkt_to_tuple helper " Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 09/33] netfilter: conntrack: gre: convert rwlock to rcu Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 10/33] netfilter: conntrack: gre: switch module to be built-in Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 11/33] netfilter: conntrack: remove net_id Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 12/33] netfilter: conntrack: remove pkt_to_tuple callback Pablo Neira Ayuso
2019-01-28 23:57 ` Pablo Neira Ayuso [this message]
2019-01-28 23:57 ` [PATCH 14/33] netfilter: conntrack: remove module owner field Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 15/33] netfilter: conntrack: remove remaining l4proto indirect packet calls Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 16/33] netfilter: conntrack: remove pernet l4 proto register interface Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 17/33] netfilter: conntrack: avoid unneeded nf_conntrack_l4proto lookups Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 18/33] netfilter: conntrack: unify sysctl handling Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 19/33] netfilter: conntrack: remove sysctl registration helpers Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 20/33] netfilter: conntrack: remove l4proto init and get_net callbacks Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 21/33] netfilter: conntrack: remove l4proto destroy hook Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 22/33] netfilter: conntrack: remove nf_ct_l4proto_find_get Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 23/33] netfilter: nf_conntrack: provide modparam to always register conntrack hooks Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 24/33] netfilter: nft_meta: Add NFT_META_I/OIFKIND meta type Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 25/33] netfilter: nat: un-export nf_nat_used_tuple Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 26/33] Revert "netfilter: nft_hash: add map lookups for hashing operations" Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 27/33] netfilter: conntrack: fix IPV6=n builds Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 28/33] netfilter: conntrack: fix bogus port values for other l4 protocols Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 29/33] ipvs: avoid indirect calls when calculating checksums Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 30/33] ipvs: use indirect call wrappers Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 31/33] netfilter: nft_counter: remove wrong __percpu of nft_counter_resest()'s arg Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 32/33] netfilter: conntrack: fix error path in nf_conntrack_pernet_init() Pablo Neira Ayuso
2019-01-28 23:57 ` [PATCH 33/33] netfilter: ipv4: remove useless export_symbol Pablo Neira Ayuso
2019-01-29 1:38 ` [PATCH 00/33] Netfilter/IPVS updates for net-next David Miller
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