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/*
* Copyright (c) 2017-2019 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.
*/
#ifndef __HICN_DPO_UDP_H__
#define __HICN_DPO_UDP_H__
#include <vnet/adj/adj_types.h>
#include <vnet/ip/ip4_packet.h>
#include <vnet/ip/ip6_packet.h>
#include "face_udp.h"
#include "../face.h"
#include "../../error.h"
/**
* @brief Initialize the internal structures of the dpo udp face module.
*/
void hicn_dpo_udp_module_init (void);
/**
* @brief Create a udp face and its corresponding dpo. Meant to be used for the
* control plane.
*
* @param dpo: Data plane object that point to the face created.
* @param local_addr: Local address of the UDP tunnel
* @param remote_addr: Remote address of the UDP tunnel
* @param local_port: Local port of the UDP tunnel
* @param remote_port: Remote port of the UDP tunnel
* @param adj: Ip adjacency corresponding to the remote address in the face
* @param node_index: vlib edge index to use in the packet processing
* @param flags: Flags of the face
* @param face_id: Identifier for the face (dpoi_index)
* @return HICN_ERROR_FACE_ALREADY_CREATED if the face exists, otherwise HICN_ERROR_NONE
*/
int
hicn_dpo_udp4_create (dpo_id_t * dpo,
const ip4_address_t * local_addr,
const ip4_address_t * remote_addr,
u16 local_port, u16 remote_port,
u32 sw_if,
adj_index_t adj,
u32 node_index,
hicn_face_flags_t flags, hicn_face_id_t * face_id);
/**
* @brief Retrieve a face using the face identifier, i.e., the quadruplet (local_addr, remote_addr,
* local_port, remote_port). This method adds a lock on the face state.
*
* @param dpo: Result of the lookup. If the face doesn't exist dpo = NULL
* @param local_addr: Local address of the UDP tunnel
* @param remote_addr: Remote address of the UDP tunnel
* @param local_port: Local port of the UDP tunnel
* @param remote_port: Remote port of the UDP tunnel
* @param is_appface: Boolean that indicates whether the face is an application
* face or not. (Currently only IP faces can be appface)
*
* @result HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise HICN_ERROR_NONE.
*/
always_inline int
hicn_dpo_udp4_lock (dpo_id_t * dpo,
const ip4_address_t * local_addr,
const ip4_address_t * remote_addr,
u16 local_port, u16 remote_port, u8 * is_appface)
{
hicn_face_t *face =
hicn_face_udp4_get (local_addr, remote_addr, local_port, remote_port);
if (PREDICT_FALSE (face == NULL))
return HICN_ERROR_FACE_NOT_FOUND;
index_t dpoi_index = hicn_dpoi_get_index (face);
dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP4, dpoi_index);
dpo->dpoi_next_node = ~0;
dpo_lock (dpo);
*is_appface = 0;
return HICN_ERROR_NONE;
}
/**
* @brief Retrieve, or create if it doesn't exist, a face from the face
* identifier (local_addr, remote_addr, local_port, remote_port) and returns its
* dpo. This method adds a lock on the face state.
*
* @param dpo: Result of the lookup
* @param local_addr: Local address of the UDP tunnel
* @param remote_addr: Remote address of the UDP tunnel
* @param local_port: Local port of the UDP tunnel
* @param remote_port: Remote port of the UDP tunnel
* @param is_appface: Boolean that indicates whether the face is an application
* face or not. (Currently only IP faces can be appface)
* @param node_index: vlib edge index to use in the packet processing
*/
always_inline void
hicn_dpo_udp4_add_and_lock (dpo_id_t * dpo,
const ip4_address_t * local_addr,
const ip4_address_t * remote_addr,
u16 local_port, u16 remote_port,
u32 node_index, u8 * is_appface)
{
hicn_face_t *face =
hicn_face_udp4_get (local_addr, remote_addr, local_port, remote_port);
if (face == NULL)
{
pool_get (hicn_dpoi_face_pool, face);
hicn_face_udp_t *udp_face = (hicn_face_udp_t *) face->data;
clib_memcpy (&(udp_face->hdrs.ip4.ip), &ip4_header_skl,
sizeof (ip4_header_t));
clib_memcpy (&(udp_face->hdrs.ip4.ip.src_address), local_addr,
sizeof (ip4_address_t));
clib_memcpy (&(udp_face->hdrs.ip4.ip.dst_address), remote_addr,
sizeof (ip4_address_t));
udp_face->hdrs.ip4.udp.src_port = local_port;
udp_face->hdrs.ip4.udp.dst_port = remote_port;
face->shared.adj = ADJ_INDEX_INVALID;
face->shared.pl_id = (u16) 0;
face->shared.face_type = hicn_face_udp_type;
face->shared.flags = HICN_FACE_FLAGS_IFACE;
face->shared.locks = 0;
hicn_face_udp_key_t key;
hicn_face_udp4_get_key (local_addr, remote_addr, local_port,
remote_port, &key);
hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face);
mhash_set_mem (&hicn_face_udp_hashtb, &key, (uword *) & dpoi_index, 0);
face = face;
*is_appface = 0;
dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP4, dpoi_index);
dpo->dpoi_next_node = node_index;
dpo_lock (dpo);
return;
}
*is_appface = 0;
hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face);
dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP4, dpoi_index);
dpo->dpoi_next_node = node_index;
dpo_lock (dpo);
}
/**
* @brief Create a udp face and its corresponding dpo. Meant to be used for the
* control plane.
*
* @param dpo: Data plane object that point to the face created.
* @param local_addr: Local address of the UDP tunnel
* @param remote_addr: Remote address of the UDP tunnel
* @param local_port: Local port of the UDP tunnel
* @param remote_port: Remote port of the UDP tunnel
* @param adj: Ip adjacency corresponding to the remote address in the face
* @param node_index: vlib edge index to use in the packet processing
* @param flags: Flags of the face
* @param face_id: Identifier for the face (dpoi_index)
* @return HICN_ERROR_FACE_ALREADY_CREATED if the face exists, otherwise HICN_ERROR_NONE
*/
int
hicn_dpo_udp6_create (dpo_id_t * dpo,
const ip6_address_t * local_addr,
const ip6_address_t * remote_addr,
u16 local_port, u16 remote_port,
u32 sw_if,
adj_index_t adj,
u32 node_index,
hicn_face_flags_t flags, hicn_face_id_t * face_id);
/**
* @brief Retrieve a face using the face identifier, i.e., the quadruplet (local_addr, remote_addr,
* local_port, remote_port). This method adds a lock on the face state.
*
* @param dpo: Result of the lookup. If the face doesn't exist dpo = NULL
* @param local_addr: Local address of the UDP tunnel
* @param remote_addr: Remote address of the UDP tunnel
* @param local_port: Local port of the UDP tunnel
* @param remote_port: Remote port of the UDP tunnel
* @param is_appface: Boolean that indicates whether the face is an application
* face or not. (Currently only IP faces can be appface)
*
* @result HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise HICN_ERROR_NONE.
*/
always_inline int
hicn_dpo_udp6_lock (dpo_id_t * dpo,
const ip6_address_t * local_addr,
const ip6_address_t * remote_addr,
u16 local_port, u16 remote_port, u8 * is_appface)
{
hicn_face_t *face =
hicn_face_udp6_get (local_addr, remote_addr, local_port, remote_port);
if (PREDICT_FALSE (face == NULL))
return HICN_ERROR_FACE_NOT_FOUND;
hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face);
dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP4, dpoi_index);
dpo->dpoi_next_node = ~0;
dpo_lock (dpo);
*is_appface = 0;
return HICN_ERROR_NONE;
}
/**
* @brief Retrieve, or create if it doesn't exist, a face from the face
* identifier (local_addr, remote_addr, local_port, remote_port) and returns its
* dpo. This method adds a lock on the face state.
*
* @param dpo: Result of the lookup
* @param local_addr: Local address of the UDP tunnel
* @param remote_addr: Remote address of the UDP tunnel
* @param local_port: Local port of the UDP tunnel
* @param remote_port: Remote port of the UDP tunnel
* @param is_appface: Boolean that indicates whether the face is an application
* face or not. (Currently only IP faces can be appface)
* @param node_index: vlib edge index to use in the packet processing
*/
always_inline void
hicn_dpo_udp6_add_and_lock (dpo_id_t * dpo,
const ip6_address_t * local_addr,
const ip6_address_t * remote_addr,
u16 local_port, u16 remote_port,
u32 node_index, u8 * is_appface)
{
hicn_face_t *face =
hicn_face_udp6_get (local_addr, remote_addr, local_port, remote_port);
if (face == NULL)
{
pool_get (hicn_dpoi_face_pool, face);
hicn_face_udp_t *udp_face = (hicn_face_udp_t *) face->data;
clib_memcpy (&(udp_face->hdrs.ip6.ip), &ip6_header_skl,
sizeof (ip6_header_t));
clib_memcpy (&(udp_face->hdrs.ip6.ip.src_address), local_addr,
sizeof (ip6_address_t));
clib_memcpy (&(udp_face->hdrs.ip6.ip.dst_address), remote_addr,
sizeof (ip6_address_t));
udp_face->hdrs.ip6.udp.src_port = local_port;
udp_face->hdrs.ip6.udp.dst_port = remote_port;
face->shared.adj = ADJ_INDEX_INVALID;
face->shared.pl_id = (u16) 0;
face->shared.face_type = hicn_face_udp_type;
face->shared.flags = HICN_FACE_FLAGS_IFACE;
face->shared.locks = 0;
hicn_face_udp_key_t key;
hicn_face_udp6_get_key (local_addr, remote_addr, local_port,
remote_port, &key);
hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face);
mhash_set_mem (&hicn_face_udp_hashtb, &key, (uword *) & dpoi_index, 0);
*is_appface = 0;
dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP6, dpoi_index);
dpo->dpoi_next_node = node_index;
dpo_lock (dpo);
return;
}
*is_appface = 0;
hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face);
dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP6, dpoi_index);
dpo->dpoi_next_node = node_index;
dpo_lock (dpo);
}
/**
* @brief Create a dpo from a udp face
*
* @param face Face from which to create the dpo
* @return the dpo
*/
void hicn_dpo_udp_create_from_face (hicn_face_t * face, dpo_id_t * dpo,
u16 dpoi_next_node);
#endif // __HICN_DPO_UDP_H__
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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