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Diffstat (limited to 'target/linux/generic/backport-4.14/305-v4.16-netfilter-move-checksum_partial-indirection-to-struc.patch')
-rw-r--r--target/linux/generic/backport-4.14/305-v4.16-netfilter-move-checksum_partial-indirection-to-struc.patch204
1 files changed, 0 insertions, 204 deletions
diff --git a/target/linux/generic/backport-4.14/305-v4.16-netfilter-move-checksum_partial-indirection-to-struc.patch b/target/linux/generic/backport-4.14/305-v4.16-netfilter-move-checksum_partial-indirection-to-struc.patch
deleted file mode 100644
index 39f5564404..0000000000
--- a/target/linux/generic/backport-4.14/305-v4.16-netfilter-move-checksum_partial-indirection-to-struc.patch
+++ /dev/null
@@ -1,204 +0,0 @@
-From: Pablo Neira Ayuso <pablo@netfilter.org>
-Date: Wed, 20 Dec 2017 16:04:18 +0100
-Subject: [PATCH] netfilter: move checksum_partial indirection to struct
- nf_ipv6_ops
-
-We cannot make a direct call to nf_ip6_checksum_partial() because that
-would result in autoloading the 'ipv6' module because of symbol
-dependencies. Therefore, define checksum_partial indirection in
-nf_ipv6_ops where this really belongs to.
-
-For IPv4, we can indeed make a direct function call, which is faster,
-given IPv4 is built-in in the networking code by default. Still,
-CONFIG_INET=n and CONFIG_NETFILTER=y is possible, so define empty inline
-stub for IPv4 in such case.
-
-Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
----
-
---- 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,
-@@ -335,22 +330,9 @@ __sum16 nf_checksum(struct sk_buff *skb,
- 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);
---- a/include/linux/netfilter_ipv4.h
-+++ b/include/linux/netfilter_ipv4.h
-@@ -11,12 +11,23 @@ int ip_route_me_harder(struct net *net,
- #ifdef CONFIG_INET
- __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);
- #else
- static inline __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
- unsigned int dataoff, u_int8_t protocol)
- {
- return 0;
- }
-+static inline __sum16 nf_ip_checksum_partial(struct sk_buff *skb,
-+ unsigned int hook,
-+ unsigned int dataoff,
-+ unsigned int len,
-+ u_int8_t protocol)
-+{
-+ return 0;
-+}
- #endif /* CONFIG_INET */
-
- #endif /*__LINUX_IP_NETFILTER_H*/
---- a/include/linux/netfilter_ipv6.h
-+++ b/include/linux/netfilter_ipv6.h
-@@ -21,6 +21,9 @@ struct nf_ipv6_ops {
- int (*output)(struct net *, struct sock *, struct sk_buff *));
- __sum16 (*checksum)(struct sk_buff *skb, unsigned int hook,
- unsigned int dataoff, u_int8_t protocol);
-+ __sum16 (*checksum_partial)(struct sk_buff *skb, unsigned int hook,
-+ unsigned int dataoff, unsigned int len,
-+ u_int8_t protocol);
- };
-
- #ifdef CONFIG_NETFILTER
---- a/net/bridge/netfilter/nf_tables_bridge.c
-+++ b/net/bridge/netfilter/nf_tables_bridge.c
-@@ -106,13 +106,6 @@ static int nf_br_reroute(struct net *net
- return 0;
- }
-
--static __sum16 nf_br_checksum_partial(struct sk_buff *skb, unsigned int hook,
-- unsigned int dataoff, unsigned int len,
-- u_int8_t protocol)
--{
-- return 0;
--}
--
- static int nf_br_route(struct net *net, struct dst_entry **dst,
- struct flowi *fl, bool strict __always_unused)
- {
-@@ -121,7 +114,6 @@ static int nf_br_route(struct net *net,
-
- static const struct nf_afinfo nf_br_afinfo = {
- .family = AF_BRIDGE,
-- .checksum_partial = nf_br_checksum_partial,
- .route = nf_br_route,
- .saveroute = nf_br_saveroute,
- .reroute = nf_br_reroute,
---- a/net/ipv4/netfilter.c
-+++ b/net/ipv4/netfilter.c
-@@ -155,9 +155,9 @@ __sum16 nf_ip_checksum(struct sk_buff *s
- }
- 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;
-@@ -175,6 +175,7 @@ static __sum16 nf_ip_checksum_partial(st
- }
- return csum;
- }
-+EXPORT_SYMBOL_GPL(nf_ip_checksum_partial);
-
- static int nf_ip_route(struct net *net, struct dst_entry **dst,
- struct flowi *fl, bool strict __always_unused)
-@@ -188,7 +189,6 @@ static int nf_ip_route(struct net *net,
-
- 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,
---- a/net/ipv6/netfilter.c
-+++ b/net/ipv6/netfilter.c
-@@ -194,15 +194,15 @@ static __sum16 nf_ip6_checksum_partial(s
- };
-
- static const struct nf_ipv6_ops ipv6ops = {
-- .chk_addr = ipv6_chk_addr,
-- .route_input = ip6_route_input,
-- .fragment = ip6_fragment,
-- .checksum = nf_ip6_checksum,
-+ .chk_addr = ipv6_chk_addr,
-+ .route_input = ip6_route_input,
-+ .fragment = ip6_fragment,
-+ .checksum = nf_ip6_checksum,
-+ .checksum_partial = nf_ip6_checksum_partial,
- };
-
- 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,
---- a/net/netfilter/utils.c
-+++ b/net/netfilter/utils.c
-@@ -24,3 +24,27 @@ __sum16 nf_checksum(struct sk_buff *skb,
- 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)
-+{
-+ const struct nf_ipv6_ops *v6ops;
-+ __sum16 csum = 0;
-+
-+ switch (family) {
-+ case AF_INET:
-+ csum = nf_ip_checksum_partial(skb, hook, dataoff, len,
-+ protocol);
-+ break;
-+ case AF_INET6:
-+ v6ops = rcu_dereference(nf_ipv6_ops);
-+ if (v6ops)
-+ csum = v6ops->checksum_partial(skb, hook, dataoff, len,
-+ protocol);
-+ break;
-+ }
-+
-+ return csum;
-+}
-+EXPORT_SYMBOL_GPL(nf_checksum_partial);