Ben Pfaff
41 lines
1.2 KiB
C
41 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 ofp_action;
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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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void fwd_port_input(struct sw_chain *, struct sk_buff *, int in_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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void execute_actions(struct datapath *, struct sk_buff *,
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const struct sw_flow_key *,
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const struct ofp_action *, int n_actions);
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struct sk_buff *execute_setter(struct sk_buff *, uint16_t,
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const struct sw_flow_key *, const struct ofp_action *);
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#endif /* forward.h */
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