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/*
* Copyright (c) 2016 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 included_vnet_flow_flow_h
#define included_vnet_flow_flow_h
#include <vppinfra/clib.h>
#include <vppinfra/pcap.h>
#include <vnet/l3_types.h>
#include <vnet/ip/ip4_packet.h>
#include <vnet/ip/ip6_packet.h>
#define foreach_flow_type \
_(IP4_N_TUPLE, ip4_n_tuple, "ipv4-n-tuple") \
_(IP6_N_TUPLE, ip6_n_tuple, "ipv6-n-tuple") \
_(IP4_VXLAN, ip4_vxlan, "ipv4-vxlan") \
_(IP6_VXLAN, ip6_vxlan, "ipv6-vxlan")
#define foreach_flow_entry_ip4_n_tuple \
_fe(ip4_address_and_mask_t, src_addr) \
_fe(ip4_address_and_mask_t, dst_addr) \
_fe(ip_port_and_mask_t, src_port) \
_fe(ip_port_and_mask_t, dst_port) \
_fe(ip_protocol_t, protocol)
#define foreach_flow_entry_ip6_n_tuple \
_fe(ip6_address_and_mask_t, src_addr) \
_fe(ip6_address_and_mask_t, dst_addr) \
_fe(ip_port_and_mask_t, src_port) \
_fe(ip_port_and_mask_t, dst_port) \
_fe(ip_protocol_t, protocol)
#define foreach_flow_entry_ip4_vxlan \
_fe(ip4_address_t, src_addr) \
_fe(ip4_address_t, dst_addr) \
_fe(u16, dst_port) \
_fe(u16, vni)
#define foreach_flow_entry_ip6_vxlan \
_fe(ip6_address_t, src_addr) \
_fe(ip6_address_t, dst_addr) \
_fe(u16, dst_port) \
_fe(u16, vni)
#define foreach_flow_action \
_(0, COUNT, "count") \
_(1, MARK, "mark") \
_(2, BUFFER_ADVANCE, "buffer-advance") \
_(3, REDIRECT_TO_NODE, "redirect-to-node") \
_(4, REDIRECT_TO_QUEUE, "redirect-to-queue") \
_(5, DROP, "drop")
typedef enum
{
#define _(v,n,s) VNET_FLOW_ACTION_##n = (1 << v),
foreach_flow_action
#undef _
} vnet_flow_action_t;
#define foreach_flow_error \
_( -1, NOT_SUPPORTED, "not supported") \
_( -2, ALREADY_DONE, "already done") \
_( -3, ALREADY_EXISTS, "already exists") \
_( -4, NO_SUCH_ENTRY, "no such entry") \
_( -5, NO_SUCH_INTERFACE, "no such interface") \
_( -6, INTERNAL, "internal error")
typedef enum
{
VNET_FLOW_NO_ERROR = 0,
#define _(v,n,s) VNET_FLOW_ERROR_##n = v,
foreach_flow_error
#undef _
} vnet_flow_error_t;
typedef struct
{
u16 port, mask;
} ip_port_and_mask_t;
typedef enum
{
VNET_FLOW_TYPE_UNKNOWN,
#define _(a,b,c) VNET_FLOW_TYPE_##a,
foreach_flow_type
#undef _
VNET_FLOW_N_TYPES,
} vnet_flow_type_t;
/*
* Create typedef struct vnet_flow_XXX_t
*/
#define _fe(a, b) a b;
#define _(a,b,c) \
typedef struct { \
int foo; \
foreach_flow_entry_##b \
} vnet_flow_##b##_t;
foreach_flow_type;
#undef _
#undef _fe
/* main flow struct */
typedef struct
{
/* flow type */
vnet_flow_type_t type;
/* flow index */
u32 index;
/* bitmap of flow actions (VNET_FLOW_ACTION_*) */
u32 actions;
/* flow id for VNET_FLOW_ACTION_MARK */
u32 mark_flow_id;
/* node index and next index for VNET_FLOW_ACTION_REDIRECT_TO_NODE */
u32 redirect_node_index;
u32 redirect_device_input_next_index;
/* queue for VNET_FLOW_ACTION_REDIRECT_TO_QUEUE */
u32 redirect_queue;
/* buffer offset for VNET_FLOW_ACTION_BUFFER_ADVANCE */
i32 buffer_advance;
union
{
#define _(a,b,c) vnet_flow_##b##_t b;
foreach_flow_type
#undef _
};
/* per-interface private data */
uword *private_data;
} vnet_flow_t;
int vnet_flow_get_range (vnet_main_t * vnm, char *owner, u32 count,
u32 * start);
int vnet_flow_add (vnet_main_t * vnm, vnet_flow_t * flow, u32 * flow_index);
int vnet_flow_enable (vnet_main_t * vnm, u32 flow_index, u32 hw_if_index);
int vnet_flow_disable (vnet_main_t * vnm, u32 flow_index, u32 hw_if_index);
int vnet_flow_del (vnet_main_t * vnm, u32 flow_index);
vnet_flow_t *vnet_get_flow (u32 flow_index);
typedef struct
{
u32 start;
u32 count;
u8 *owner;
} vnet_flow_range_t;
typedef struct
{
/* pool of device flow entries */
vnet_flow_t *global_flow_pool;
/* flow ids allocated */
u32 flows_used;
/* vector of flow ranges */
vnet_flow_range_t *ranges;
} vnet_flow_main_t;
extern vnet_flow_main_t flow_main;
format_function_t format_flow_actions;
format_function_t format_flow_enabled_hw;
#endif /* included_vnet_flow_flow_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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