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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file
* @brief IPv6 shallow virtual reassembly.
*
* This file contains the source code for IPv6 shallow virtual reassembly.
*/
#ifndef __included_ip6_sv_reass_h__
#define __included_ip6_sv_reass_h__
#include <stdbool.h>
#include <vnet/api_errno.h>
#include <vnet/vnet.h>
/**
* @brief set ip6 reassembly configuration
*/
vnet_api_error_t ip6_sv_reass_set (u32 timeout_ms, u32 max_reassemblies,
u32 max_reassembly_length,
u32 expire_walk_interval_ms);
/**
* @brief get ip6 reassembly configuration
*/
vnet_api_error_t ip6_sv_reass_get (u32 * timeout_ms, u32 * max_reassemblies,
u32 * max_reassembly_length,
u32 * expire_walk_interval_ms);
vnet_api_error_t ip6_sv_reass_enable_disable (u32 sw_if_index,
u8 enable_disable);
vnet_api_error_t
ip6_sv_reass_output_enable_disable_with_refcnt (u32 sw_if_index,
int is_enable);
/*
* Enable or disable extended reassembly.
*
* Extended reassembly means that fragments are cached until both first and
* last fragments are seen. Furthermore, first fragment buffer will be cloned
* and stored in reassembly context for later retrieval.
*/
void ip6_sv_reass_enable_disable_extended (bool is_enable);
struct ip6_sv_lock_unlock_args
{
u32 *total_ip_payload_length;
u32 *first_fragment_buffer_index;
u32 *first_fragment_total_ip_header_length;
};
/*
* Lock thread-level lock and fetch information from reassembly context.
* Uses vnet_buffer2 data filled by extended reassembly.
*
* Returns 0 on success, -1 otherwise.
*/
int ip6_sv_reass_extended_lock (vlib_buffer_t *b,
struct ip6_sv_lock_unlock_args *a);
void ip6_sv_reass_extended_unlock (vlib_buffer_t *b);
int ip6_sv_reass_enable_disable_with_refcnt (u32 sw_if_index, int is_enable);
uword ip6_sv_reass_custom_context_register_next_node (uword node_index);
#endif /* __included_ip6_sv_reass_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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