1 /* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
4 * We are making the OpenFlow specification and associated documentation
5 * (Software) available for public use and benefit with the expectation
6 * that others will use, modify and enhance the Software and contribute
7 * those enhancements back to the community. However, since we would
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9 * restrictions as possible permission is hereby granted, free of
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11 * the Software under the copyrights without restriction, including
12 * without limitation the rights to use, copy, modify, merge, publish,
13 * distribute, sublicense, and/or sell copies of the Software, and to
14 * permit persons to whom the Software is furnished to do so, subject to
15 * the following conditions:
17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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34 /* Interface exported by OpenFlow module. */
41 #include "switch-flow.h"
45 #define NL_FLOWS_PER_MESSAGE 100
47 /* Capabilities supported by this implementation. */
48 #define OFP_SUPPORTED_CAPABILITIES (OFPC_MULTI_PHY_TX)
50 /* Actions supported by this implementation. */
51 #define OFP_SUPPORTED_ACTIONS ( (1 << OFPAT_OUTPUT) \
52 | (1 << OFPAT_SET_DL_VLAN) \
53 | (1 << OFPAT_SET_DL_SRC) \
54 | (1 << OFPAT_SET_DL_DST) \
55 | (1 << OFPAT_SET_NW_SRC) \
56 | (1 << OFPAT_SET_NW_DST) \
57 | (1 << OFPAT_SET_TP_SRC) \
58 | (1 << OFPAT_SET_TP_DST) )
63 struct netdev *netdev;
64 struct list node; /* Element in datapath.ports. */
68 struct controller_connection *cc;
72 /* Unique identifier for this datapath */
75 struct sw_chain *chain; /* Forwarding rules. */
77 /* Flags from the control hello message */
80 /* Maximum number of bytes that should be sent for flow misses */
81 uint16_t miss_send_len;
84 struct sw_port ports[OFPP_MAX];
85 struct list port_list; /* List of ports, for flooding. */
88 int dp_new(struct datapath **, uint64_t dpid, struct controller_connection *);
89 int dp_add_port(struct datapath *, const char *netdev);
90 void dp_run(struct datapath *);
91 void dp_wait(struct datapath *);
93 void dp_output_port(struct datapath *, struct buffer *,
94 int in_port, int out_port);
95 void dp_output_control(struct datapath *, struct buffer *, int in_port,
96 uint32_t buffer_id, size_t max_len, int reason);
97 void dp_send_hello(struct datapath *);
98 void dp_send_flow_expired(struct datapath *, struct sw_flow *);
99 void dp_update_port_flags(struct datapath *dp, const struct ofp_phy_port *opp);
101 #endif /* datapath.h */