From: Steffen Klassert <steffen.klassert@secunet•com>
To: David Miller <davem@davemloft•net>
Cc: Herbert Xu <herbert@gondor•apana.org.au>,
Steffen Klassert <steffen.klassert@secunet•com>,
<netdev@vger•kernel.org>
Subject: [PATCH 06/11] xfrm: move xfrm4_extract_header to common helper
Date: Fri, 29 May 2020 12:30:06 +0200 [thread overview]
Message-ID: <20200529103011.30127-7-steffen.klassert@secunet.com> (raw)
In-Reply-To: <20200529103011.30127-1-steffen.klassert@secunet.com>
From: Florian Westphal <fw@strlen•de>
The function only initializes the XFRM CB in the skb.
After previous patch xfrm4_extract_header is only called from
net/xfrm/xfrm_{input,output}.c.
Because of IPV6=m linker errors the ipv6 equivalent
(xfrm6_extract_header) was already placed in xfrm_inout.h because
we can't call functions residing in a module from the core.
So do the same for the ipv4 helper and place it next to the ipv6 one.
Signed-off-by: Florian Westphal <fw@strlen•de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet•com>
---
include/net/xfrm.h | 1 -
net/ipv4/xfrm4_state.c | 21 ---------------------
net/xfrm/xfrm_inout.h | 14 ++++++++++++++
3 files changed, 14 insertions(+), 22 deletions(-)
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index a21c1dea5340..8b956528b6e6 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1562,7 +1562,6 @@ int pktgen_xfrm_outer_mode_output(struct xfrm_state *x, struct sk_buff *skb);
#endif
void xfrm_local_error(struct sk_buff *skb, int mtu);
-int xfrm4_extract_header(struct sk_buff *skb);
int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb);
int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi,
int encap_type);
diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c
index 521fc1bc069c..b23a1711297b 100644
--- a/net/ipv4/xfrm4_state.c
+++ b/net/ipv4/xfrm4_state.c
@@ -8,28 +8,7 @@
*
*/
-#include <net/ip.h>
#include <net/xfrm.h>
-#include <linux/pfkeyv2.h>
-#include <linux/ipsec.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/export.h>
-
-int xfrm4_extract_header(struct sk_buff *skb)
-{
- const struct iphdr *iph = ip_hdr(skb);
-
- XFRM_MODE_SKB_CB(skb)->ihl = sizeof(*iph);
- XFRM_MODE_SKB_CB(skb)->id = iph->id;
- XFRM_MODE_SKB_CB(skb)->frag_off = iph->frag_off;
- XFRM_MODE_SKB_CB(skb)->tos = iph->tos;
- XFRM_MODE_SKB_CB(skb)->ttl = iph->ttl;
- XFRM_MODE_SKB_CB(skb)->optlen = iph->ihl * 4 - sizeof(*iph);
- memset(XFRM_MODE_SKB_CB(skb)->flow_lbl, 0,
- sizeof(XFRM_MODE_SKB_CB(skb)->flow_lbl));
-
- return 0;
-}
static struct xfrm_state_afinfo xfrm4_state_afinfo = {
.family = AF_INET,
diff --git a/net/xfrm/xfrm_inout.h b/net/xfrm/xfrm_inout.h
index e24abac92dc2..efc5e6b2e87b 100644
--- a/net/xfrm/xfrm_inout.h
+++ b/net/xfrm/xfrm_inout.h
@@ -6,6 +6,20 @@
#ifndef XFRM_INOUT_H
#define XFRM_INOUT_H 1
+static inline void xfrm4_extract_header(struct sk_buff *skb)
+{
+ const struct iphdr *iph = ip_hdr(skb);
+
+ XFRM_MODE_SKB_CB(skb)->ihl = sizeof(*iph);
+ XFRM_MODE_SKB_CB(skb)->id = iph->id;
+ XFRM_MODE_SKB_CB(skb)->frag_off = iph->frag_off;
+ XFRM_MODE_SKB_CB(skb)->tos = iph->tos;
+ XFRM_MODE_SKB_CB(skb)->ttl = iph->ttl;
+ XFRM_MODE_SKB_CB(skb)->optlen = iph->ihl * 4 - sizeof(*iph);
+ memset(XFRM_MODE_SKB_CB(skb)->flow_lbl, 0,
+ sizeof(XFRM_MODE_SKB_CB(skb)->flow_lbl));
+}
+
static inline void xfrm6_extract_header(struct sk_buff *skb)
{
#if IS_ENABLED(CONFIG_IPV6)
--
2.17.1
next prev parent reply other threads:[~2020-05-29 10:30 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-29 10:30 pull request (net-next): ipsec-next 2020-05-29 Steffen Klassert
2020-05-29 10:30 ` [PATCH 01/11] xfrm interface: don't take extra reference to netdev Steffen Klassert
2020-05-29 10:30 ` [PATCH 02/11] xfrm: add support for UDPv6 encapsulation of ESP Steffen Klassert
2020-05-29 10:30 ` [PATCH 03/11] xfrm: add IPv6 support for espintcp Steffen Klassert
2020-05-29 10:30 ` [PATCH 04/11] xfrm: avoid extract_output indirection for ipv4 Steffen Klassert
2020-05-29 10:30 ` [PATCH 05/11] xfrm: state: remove extract_input indirection from xfrm_state_afinfo Steffen Klassert
2020-05-29 10:30 ` Steffen Klassert [this message]
2020-05-29 10:30 ` [PATCH 07/11] xfrm: expose local_rxpmtu via ipv6_stubs Steffen Klassert
2020-05-29 10:30 ` [PATCH 08/11] xfrm: place xfrm6_local_dontfrag in xfrm.h Steffen Klassert
2020-05-29 10:30 ` [PATCH 09/11] xfrm: remove extract_output indirection from xfrm_state_afinfo Steffen Klassert
2020-05-29 10:30 ` [PATCH 10/11] xfrm: remove output_finish " Steffen Klassert
2020-05-29 10:30 ` [PATCH 11/11] xfrm: fix unused variable warning if CONFIG_NETFILTER=n Steffen Klassert
2020-05-29 20:03 ` pull request (net-next): ipsec-next 2020-05-29 David Miller
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