Simplify this infrastructure by replacing it by direction call.
Signed-off-by: Pablo Neira Ayuso <[email protected]>
---
include/linux/netfilter.h | 25 +++----------------------
include/linux/netfilter_ipv4.h | 3 +++
include/linux/netfilter_ipv6.h | 11 +++++++++++
net/ipv4/netfilter.c | 7 +++----
net/ipv6/netfilter.c | 7 +++----
net/netfilter/utils.c | 21 +++++++++++++++++++++
6 files changed, 44 insertions(+), 30 deletions(-)
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index 3ae4cfb92b54..a2bb6fefde13 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -311,11 +311,6 @@ struct nf_queue_entry;
struct nf_afinfo {
unsigned short family;
- __sum16 (*checksum_partial)(struct sk_buff *skb,
- unsigned int hook,
- unsigned int dataoff,
- unsigned int len,
- u_int8_t protocol);
int (*route)(struct net *net, struct dst_entry **dst,
struct flowi *fl, bool strict);
void (*saveroute)(const struct sk_buff *skb,
@@ -334,23 +329,9 @@ static inline const struct nf_afinfo
*nf_get_afinfo(unsigned short family)
__sum16 nf_checksum(struct sk_buff *skb, unsigned int hook,
unsigned int dataoff, u_int8_t protocol,
unsigned short family);
-
-static inline __sum16
-nf_checksum_partial(struct sk_buff *skb, unsigned int hook,
- unsigned int dataoff, unsigned int len,
- u_int8_t protocol, unsigned short family)
-{
- const struct nf_afinfo *afinfo;
- __sum16 csum = 0;
-
- rcu_read_lock();
- afinfo = nf_get_afinfo(family);
- if (afinfo)
- csum = afinfo->checksum_partial(skb, hook, dataoff, len,
- protocol);
- rcu_read_unlock();
- return csum;
-}
+__sum16 nf_checksum_partial(struct sk_buff *skb, unsigned int hook,
+ unsigned int dataoff, unsigned int len,
+ u_int8_t protocol, unsigned short family);
int nf_register_afinfo(const struct nf_afinfo *afinfo);
void nf_unregister_afinfo(const struct nf_afinfo *afinfo);
diff --git a/include/linux/netfilter_ipv4.h b/include/linux/netfilter_ipv4.h
index 98c03b2462b5..6d61ec0a7695 100644
--- a/include/linux/netfilter_ipv4.h
+++ b/include/linux/netfilter_ipv4.h
@@ -9,4 +9,7 @@
int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned
addr_type);
__sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
unsigned int dataoff, u_int8_t protocol);
+__sum16 nf_ip_checksum_partial(struct sk_buff *skb, unsigned int hook,
+ unsigned int dataoff, unsigned int len,
+ u_int8_t protocol);
#endif /*__LINUX_IP_NETFILTER_H*/
diff --git a/include/linux/netfilter_ipv6.h b/include/linux/netfilter_ipv6.h
index ea8c99e5112a..729cc76cb3db 100644
--- a/include/linux/netfilter_ipv6.h
+++ b/include/linux/netfilter_ipv6.h
@@ -24,12 +24,23 @@ struct nf_ipv6_ops {
#if defined(CONFIG_IPV6)
__sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
unsigned int dataoff, u_int8_t protocol);
+__sum16 nf_ip6_checksum_partial(struct sk_buff *skb, unsigned int hook,
+ unsigned int dataoff, unsigned int len,
+ u_int8_t protocol);
#else
static inline __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
unsigned int dataoff, u_int8_t protocol)
{
return 0;
}
+static inline__sum16 nf_ip6_checksum_partial(struct sk_buff *skb,
+ unsigned int hook,
+ unsigned int dataoff,
+ unsigned int len,
+ u_int8_t protocol)
+{
+ return 0;
+}
#endif
#ifdef CONFIG_NETFILTER
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index 2f7ffefd2732..050b614662f8 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -155,9 +155,9 @@ __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int
hook,
}
EXPORT_SYMBOL(nf_ip_checksum);
-static __sum16 nf_ip_checksum_partial(struct sk_buff *skb, unsigned int hook,
- unsigned int dataoff, unsigned int len,
- u_int8_t protocol)
+__sum16 nf_ip_checksum_partial(struct sk_buff *skb, unsigned int hook,
+ unsigned int dataoff, unsigned int len,
+ u_int8_t protocol)
{
const struct iphdr *iph = ip_hdr(skb);
__sum16 csum = 0;
@@ -188,7 +188,6 @@ static int nf_ip_route(struct net *net, struct dst_entry
**dst,
static const struct nf_afinfo nf_ip_afinfo = {
.family = AF_INET,
- .checksum_partial = nf_ip_checksum_partial,
.route = nf_ip_route,
.saveroute = nf_ip_saveroute,
.reroute = nf_ip_reroute,
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index a24810ecc432..6e39b721136e 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -163,9 +163,9 @@ __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int
hook,
}
EXPORT_SYMBOL(nf_ip6_checksum);
-static __sum16 nf_ip6_checksum_partial(struct sk_buff *skb, unsigned int hook,
- unsigned int dataoff, unsigned int len,
- u_int8_t protocol)
+__sum16 nf_ip6_checksum_partial(struct sk_buff *skb, unsigned int hook,
+ unsigned int dataoff, unsigned int len,
+ u_int8_t protocol)
{
const struct ipv6hdr *ip6h = ipv6_hdr(skb);
__wsum hsum;
@@ -197,7 +197,6 @@ static const struct nf_ipv6_ops ipv6ops = {
static const struct nf_afinfo nf_ip6_afinfo = {
.family = AF_INET6,
- .checksum_partial = nf_ip6_checksum_partial,
.route = nf_ip6_route,
.saveroute = nf_ip6_saveroute,
.reroute = nf_ip6_reroute,
diff --git a/net/netfilter/utils.c b/net/netfilter/utils.c
index 92a51e507fab..3fdad0c7b189 100644
--- a/net/netfilter/utils.c
+++ b/net/netfilter/utils.c
@@ -21,3 +21,24 @@ __sum16 nf_checksum(struct sk_buff *skb, unsigned int hook,
return csum;
}
EXPORT_SYMBOL_GPL(nf_checksum);
+
+__sum16 nf_checksum_partial(struct sk_buff *skb, unsigned int hook,
+ unsigned int dataoff, unsigned int len,
+ u_int8_t protocol, unsigned short family)
+{
+ __sum16 csum = 0;
+
+ switch (family) {
+ case AF_INET:
+ csum = nf_ip_checksum_partial(skb, hook, dataoff, len,
+ protocol);
+ break;
+ case AF_INET6:
+ csum = nf_ip6_checksum_partial(skb, hook, dataoff, len,
+ protocol);
+ break;
+ }
+
+ return csum;
+}
+EXPORT_SYMBOL_GPL(nf_checksum_partial);
--
2.11.0
--
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