Justin Pettit
1489ca2657
Allow vendors to define their own actions. Actions were originally fixed- length, which was a bit constraining. Actions now contain a length field, which gives them more flexibility.
67 lines
2.6 KiB
C
67 lines
2.6 KiB
C
/* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
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* Junior University
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*
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* We are making the OpenFlow specification and associated documentation
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* (Software) available for public use and benefit with the expectation
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* that others will use, modify and enhance the Software and contribute
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* those enhancements back to the community. However, since we would
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* like to make the Software available for broadest use, with as few
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* restrictions as possible permission is hereby granted, free of
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* charge, to any person obtaining a copy of this Software to deal in
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* the Software under the copyrights without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* The name and trademarks of copyright holder(s) may NOT be used in
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* advertising or publicity pertaining to the Software or any
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* derivatives without specific, written prior permission.
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*/
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#ifndef CHAIN_H
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#define CHAIN_H 1
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#include <stddef.h>
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#include <stdint.h>
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struct sw_flow;
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struct sw_flow_key;
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struct ofp_action_header;
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struct list;
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#define TABLE_LINEAR_MAX_FLOWS 100
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#define TABLE_HASH_MAX_FLOWS 65536
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#define TABLE_MAC_MAX_FLOWS 1024
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#define TABLE_MAC_NUM_BUCKETS 1024
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/* Set of tables chained together in sequence from cheap to expensive. */
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#define CHAIN_MAX_TABLES 4
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struct sw_chain {
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int n_tables;
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struct sw_table *tables[CHAIN_MAX_TABLES];
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};
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struct sw_chain *chain_create(void);
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struct sw_flow *chain_lookup(struct sw_chain *, const struct sw_flow_key *);
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int chain_insert(struct sw_chain *, struct sw_flow *);
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int chain_modify(struct sw_chain *, const struct sw_flow_key *,
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uint16_t, int, const struct ofp_action_header *, size_t);
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int chain_delete(struct sw_chain *, const struct sw_flow_key *, uint16_t, int);
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void chain_timeout(struct sw_chain *, struct list *deleted);
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void chain_destroy(struct sw_chain *);
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#endif /* chain.h */
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