diff options
Diffstat (limited to 'include/net/dst.h')
| -rw-r--r-- | include/net/dst.h | 72 |
1 files changed, 48 insertions, 24 deletions
diff --git a/include/net/dst.h b/include/net/dst.h index 3bc4865f826..71c60f42be4 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -45,7 +45,7 @@ struct dst_entry { void *__pad1; #endif int (*input)(struct sk_buff *); - int (*output)(struct sk_buff *); + int (*output)(struct sock *sk, struct sk_buff *skb); unsigned short flags; #define DST_HOST 0x0001 @@ -54,10 +54,9 @@ struct dst_entry { #define DST_NOHASH 0x0008 #define DST_NOCACHE 0x0010 #define DST_NOCOUNT 0x0020 -#define DST_NOPEER 0x0040 -#define DST_FAKE_RTABLE 0x0080 -#define DST_XFRM_TUNNEL 0x0100 -#define DST_XFRM_QUEUE 0x0200 +#define DST_FAKE_RTABLE 0x0040 +#define DST_XFRM_TUNNEL 0x0080 +#define DST_XFRM_QUEUE 0x0100 unsigned short pending_confirm; @@ -106,12 +105,14 @@ struct dst_entry { }; }; -extern u32 *dst_cow_metrics_generic(struct dst_entry *dst, unsigned long old); +u32 *dst_cow_metrics_generic(struct dst_entry *dst, unsigned long old); extern const u32 dst_default_metrics[]; -#define DST_METRICS_READ_ONLY 0x1UL +#define DST_METRICS_READ_ONLY 0x1UL +#define DST_METRICS_FORCE_OVERWRITE 0x2UL +#define DST_METRICS_FLAGS 0x3UL #define __DST_METRICS_PTR(Y) \ - ((u32 *)((Y) & ~DST_METRICS_READ_ONLY)) + ((u32 *)((Y) & ~DST_METRICS_FLAGS)) #define DST_METRICS_PTR(X) __DST_METRICS_PTR((X)->_metrics) static inline bool dst_metrics_read_only(const struct dst_entry *dst) @@ -119,7 +120,12 @@ static inline bool dst_metrics_read_only(const struct dst_entry *dst) return dst->_metrics & DST_METRICS_READ_ONLY; } -extern void __dst_destroy_metrics_generic(struct dst_entry *dst, unsigned long old); +static inline void dst_metrics_set_force_overwrite(struct dst_entry *dst) +{ + dst->_metrics |= DST_METRICS_FORCE_OVERWRITE; +} + +void __dst_destroy_metrics_generic(struct dst_entry *dst, unsigned long old); static inline void dst_destroy_metrics_generic(struct dst_entry *dst) { @@ -262,7 +268,7 @@ static inline struct dst_entry *dst_clone(struct dst_entry *dst) return dst; } -extern void dst_release(struct dst_entry *dst); +void dst_release(struct dst_entry *dst); static inline void refdst_drop(unsigned long refdst) { @@ -322,12 +328,11 @@ static inline void __skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev, skb->dev = dev; /* - * Clear rxhash so that we can recalulate the hash for the + * Clear hash so that we can recalulate the hash for the * encapsulated packet, unless we have already determine the hash * over the L4 4-tuple. */ - if (!skb->l4_rxhash) - skb->rxhash = 0; + skb_clear_hash_if_not_l4(skb); skb_set_queue_mapping(skb, 0); skb_scrub_packet(skb, !net_eq(net, dev_net(dev))); } @@ -362,12 +367,15 @@ static inline struct dst_entry *skb_dst_pop(struct sk_buff *skb) return child; } -extern int dst_discard(struct sk_buff *skb); -extern void *dst_alloc(struct dst_ops *ops, struct net_device *dev, - int initial_ref, int initial_obsolete, - unsigned short flags); -extern void __dst_free(struct dst_entry *dst); -extern struct dst_entry *dst_destroy(struct dst_entry *dst); +int dst_discard_sk(struct sock *sk, struct sk_buff *skb); +static inline int dst_discard(struct sk_buff *skb) +{ + return dst_discard_sk(skb->sk, skb); +} +void *dst_alloc(struct dst_ops *ops, struct net_device *dev, int initial_ref, + int initial_obsolete, unsigned short flags); +void __dst_free(struct dst_entry *dst); +struct dst_entry *dst_destroy(struct dst_entry *dst); static inline void dst_free(struct dst_entry *dst) { @@ -445,9 +453,13 @@ static inline void dst_set_expires(struct dst_entry *dst, int timeout) } /* Output packet to network from transport. */ +static inline int dst_output_sk(struct sock *sk, struct sk_buff *skb) +{ + return skb_dst(skb)->output(sk, skb); +} static inline int dst_output(struct sk_buff *skb) { - return skb_dst(skb)->output(skb); + return dst_output_sk(skb->sk, skb); } /* Input packet from network to transport. */ @@ -463,7 +475,7 @@ static inline struct dst_entry *dst_check(struct dst_entry *dst, u32 cookie) return dst; } -extern void dst_init(void); +void dst_init(void); /* Flags for xfrm_lookup flags argument. */ enum { @@ -479,10 +491,22 @@ static inline struct dst_entry *xfrm_lookup(struct net *net, { return dst_orig; } + +static inline struct xfrm_state *dst_xfrm(const struct dst_entry *dst) +{ + return NULL; +} + #else -extern struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig, - const struct flowi *fl, struct sock *sk, - int flags); +struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig, + const struct flowi *fl, struct sock *sk, + int flags); + +/* skb attached with this dst needs transformation if dst->xfrm is valid */ +static inline struct xfrm_state *dst_xfrm(const struct dst_entry *dst) +{ + return dst->xfrm; +} #endif #endif /* _NET_DST_H */ |