mirror of
https://github.com/openvswitch/ovs
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91 lines
3.8 KiB
C
91 lines
3.8 KiB
C
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/*
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* Copyright (c) 2008, 2009, 2010 Nicira Networks.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef OFP_UTIL_H
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#define OFP_UTIL_H 1
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#include <assert.h>
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#include <stddef.h>
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#include <stdint.h>
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#include "flow.h"
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struct ofpbuf;
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struct ofp_action_header;
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/* OpenFlow protocol utility functions. */
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void *make_openflow(size_t openflow_len, uint8_t type, struct ofpbuf **);
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void *make_openflow_xid(size_t openflow_len, uint8_t type,
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uint32_t xid, struct ofpbuf **);
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void *put_openflow(size_t openflow_len, uint8_t type, struct ofpbuf *);
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void *put_openflow_xid(size_t openflow_len, uint8_t type, uint32_t xid,
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struct ofpbuf *);
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void update_openflow_length(struct ofpbuf *);
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struct ofpbuf *make_flow_mod(uint16_t command, const flow_t *,
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size_t actions_len);
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struct ofpbuf *make_add_flow(const flow_t *, uint32_t buffer_id,
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uint16_t max_idle, size_t actions_len);
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struct ofpbuf *make_del_flow(const flow_t *);
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struct ofpbuf *make_add_simple_flow(const flow_t *,
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uint32_t buffer_id, uint16_t out_port,
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uint16_t max_idle);
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struct ofpbuf *make_packet_in(uint32_t buffer_id, uint16_t in_port,
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uint8_t reason,
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const struct ofpbuf *payload, int max_send_len);
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struct ofpbuf *make_packet_out(const struct ofpbuf *packet, uint32_t buffer_id,
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uint16_t in_port,
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const struct ofp_action_header *,
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size_t n_actions);
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struct ofpbuf *make_buffered_packet_out(uint32_t buffer_id,
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uint16_t in_port, uint16_t out_port);
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struct ofpbuf *make_unbuffered_packet_out(const struct ofpbuf *packet,
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uint16_t in_port, uint16_t out_port);
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struct ofpbuf *make_echo_request(void);
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struct ofpbuf *make_echo_reply(const struct ofp_header *rq);
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int check_ofp_message(const struct ofp_header *, uint8_t type, size_t size);
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int check_ofp_message_array(const struct ofp_header *, uint8_t type,
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size_t size, size_t array_elt_size,
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size_t *n_array_elts);
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int check_ofp_packet_out(const struct ofp_header *, struct ofpbuf *data,
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int *n_actions, int max_ports);
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struct flow_stats_iterator {
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const uint8_t *pos, *end;
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};
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const struct ofp_flow_stats *flow_stats_first(struct flow_stats_iterator *,
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const struct ofp_stats_reply *);
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const struct ofp_flow_stats *flow_stats_next(struct flow_stats_iterator *);
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struct actions_iterator {
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const union ofp_action *pos, *end;
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};
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const union ofp_action *actions_first(struct actions_iterator *,
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const union ofp_action *,
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size_t n_actions);
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const union ofp_action *actions_next(struct actions_iterator *);
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int validate_actions(const union ofp_action *, size_t n_actions,
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int max_ports);
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void normalize_match(struct ofp_match *);
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static inline int
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ofp_mkerr(uint16_t type, uint16_t code)
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{
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assert(type > 0 && type <= 0x7fff);
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return (type << 16) | code;
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}
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#endif /* ofp-util.h */
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