Mikio Hara
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
#ifndef FORWARD_H
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#define FORWARD_H 1
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#include <linux/types.h>
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#include "datapath.h"
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#include "flow.h"
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struct sk_buff;
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struct sw_chain;
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struct sender;
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/* Buffers are identified to userspace by a 31-bit opaque ID. We divide the ID
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* into a buffer number (low bits) and a cookie (high bits). The buffer number
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* is an index into an array of buffers. The cookie distinguishes between
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* different packets that have occupied a single buffer. Thus, the more
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* buffers we have, the lower-quality the cookie... */
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#define PKT_BUFFER_BITS 8
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#define N_PKT_BUFFERS (1 << PKT_BUFFER_BITS)
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#define PKT_BUFFER_MASK (N_PKT_BUFFERS - 1)
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#define PKT_COOKIE_BITS (32 - PKT_BUFFER_BITS)
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#define UINT32_MAX 4294967295U
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#define UINT16_MAX 65535
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#define MAX(X, Y) ((X) > (Y) ? (X) : (Y))
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void fwd_port_input(struct sw_chain *, struct sk_buff *,
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struct net_bridge_port *);
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int run_flow_through_tables(struct sw_chain *, struct sk_buff *,
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struct net_bridge_port *);
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int fwd_control_input(struct sw_chain *, const struct sender *,
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const void *, size_t);
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uint32_t fwd_save_skb(struct sk_buff *skb);
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void fwd_discard_all(void);
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void fwd_exit(void);
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#endif /* forward.h */
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