4 #include <linux/types.h>
12 /* Buffers are identified to userspace by a 31-bit opaque ID. We divide the ID
13 * into a buffer number (low bits) and a cookie (high bits). The buffer number
14 * is an index into an array of buffers. The cookie distinguishes between
15 * different packets that have occupied a single buffer. Thus, the more
16 * buffers we have, the lower-quality the cookie... */
17 #define PKT_BUFFER_BITS 8
18 #define N_PKT_BUFFERS (1 << PKT_BUFFER_BITS)
19 #define PKT_BUFFER_MASK (N_PKT_BUFFERS - 1)
21 #define PKT_COOKIE_BITS (32 - PKT_BUFFER_BITS)
24 void fwd_port_input(struct sw_chain *, struct sk_buff *,
25 struct net_bridge_port *);
26 int run_flow_through_tables(struct sw_chain *, struct sk_buff *,
27 struct net_bridge_port *);
28 int fwd_control_input(struct sw_chain *, const struct sender *,
29 const void *, size_t);
31 uint32_t fwd_save_skb(struct sk_buff *skb);
32 void fwd_discard_all(void);
36 #endif /* forward.h */