ea3e1fc875
directory and GNU autotools setup. Change-Id: I6c59d1297389c9413db0c0b9bdf3b759080bf1b8 Signed-off-by: Ole Troan <ot@cisco.com>
92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
/*
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*------------------------------------------------------------------
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* nat64_tcp_sm.h - Stateful NAT64 translation TCP State machine
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*
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* Copyright (c) 2011 Cisco and/or its affiliates.
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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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*/
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#ifndef __NAT64_TCP_SM_H__
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#define __NAT64_TCP_SM_H__
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/* TCP States */
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typedef enum {
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TCP_CLOSED,
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TCP_V4_INIT,
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TCP_V6_INIT,
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TCP_ESTABLISHED,
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TCP_V4_FIN_RCV,
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TCP_V6_FIN_RCV,
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TCP_V4V6_FIN_RCV,
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TCP_TRANS,
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TCP_NONE
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} nat64_tcp_states;
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/* TCP Events */
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typedef enum {
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TCP_TIMEOUT_EV,
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TCP_V6_SYN_EV,
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TCP_V4_SYN_EV,
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TCP_V6_FIN_EV,
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TCP_V4_FIN_EV,
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TCP_V6_RST_EV,
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TCP_V4_RST_EV,
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TCP_DEFAULT_EV,
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TCP_EV_COUNT
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} nat64_tcp_events;
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/* TCP Actions */
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typedef enum {
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TCP_FORWARD,
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TCP_COND_FORWARD, /* Conditional forward, based on presence of
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* session and bib entries */
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TCP_STORE,
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TCP_PROBE,
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TCP_CREATE_SESSION,
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TCP_DELETE_SESSION,
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TCP_DROP,
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TCP_ACTION_NONE,
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TCP_ACTION_COUNT
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} nat64_tcp_actions;
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typedef struct {
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nat64_tcp_states next_state;
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nat64_tcp_actions action;
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} nat64_tcp_trans_t;
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typedef struct {
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nat64_tcp_trans_t event[TCP_EV_COUNT];
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} nat64_tcp_state_trans_t;
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extern nat64_tcp_state_trans_t nat64_tcp_sm_lookup[TCP_NONE];
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/*
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inline void
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nat64_update_v6_to_v4_tcp (nat64_v6_to_v4_pipeline_data_t *pctx_ptr,
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nat64_bib_entry_t *bib_ptr);
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inline u8 nat64_v6_to_v4_tcp_perform_action (
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spp_ctx_t *ctx,
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nat64_v6_to_v4_pipeline_data_t *pctx_ptr,
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nat64_bib_entry_t *bib_db,
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nat64_session_entry_t *session_db);
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inline void
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nat64_copy_tcp_into_pctx (nat64_v6_to_v4_pipeline_data_t *pctx_ptr);
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*/
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#endif
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