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/*
* flowprobe.h - ipfix probe plug-in header file
*
* 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_flowprobe_h__
#define __included_flowprobe_h__
#include <vnet/vnet.h>
#include <vnet/ip/ip.h>
#include <vnet/ethernet/ethernet.h>
#include <vppinfra/hash.h>
#include <vppinfra/error.h>
#include <vnet/flow/flow_report.h>
#include <vnet/flow/flow_report_classify.h>
#include <vppinfra/tw_timer_2t_1w_2048sl.h>
/* Default timers in seconds */
#define FLOWPROBE_TIMER_ACTIVE (15)
#define FLOWPROBE_TIMER_PASSIVE 120 // XXXX: FOR TESTING (30*60)
#define FLOWPROBE_LOG2_HASHSIZE (18)
typedef enum
{
FLOW_RECORD_L2 = 1 << 0,
FLOW_RECORD_L3 = 1 << 1,
FLOW_RECORD_L4 = 1 << 2,
FLOW_RECORD_L2_IP4 = 1 << 3,
FLOW_RECORD_L2_IP6 = 1 << 4,
FLOW_N_RECORDS = 1 << 5,
} flowprobe_record_t;
/* *INDENT-OFF* */
typedef enum __attribute__ ((__packed__))
{
FLOW_VARIANT_IP4,
FLOW_VARIANT_IP6,
FLOW_VARIANT_L2,
FLOW_VARIANT_L2_IP4,
FLOW_VARIANT_L2_IP6,
FLOW_N_VARIANTS,
} flowprobe_variant_t;
/* *INDENT-ON* */
STATIC_ASSERT (sizeof (flowprobe_variant_t) == 1,
"flowprobe_variant_t is expected to be 1 byte, "
"revisit padding in flowprobe_key_t");
#define FLOW_MAXIMUM_EXPORT_ENTRIES (1024)
typedef struct
{
/* what to collect per variant */
flowprobe_record_t flags;
/** ipfix buffers under construction, per-worker thread */
vlib_buffer_t **buffers_per_worker;
/** frames containing ipfix buffers, per-worker thread */
vlib_frame_t **frames_per_worker;
/** next record offset, per worker thread */
u16 *next_record_offset_per_worker;
} flowprobe_protocol_context_t;
#define FLOWPROBE_KEY_IN_U32 22
/* *INDENT-OFF* */
typedef CLIB_PACKED (union
{
struct {
u32 rx_sw_if_index;
u32 tx_sw_if_index;
u8 src_mac[6];
u8 dst_mac[6];
u16 ethertype;
ip46_address_t src_address;
ip46_address_t dst_address;
u8 protocol;
u16 src_port;
u16 dst_port;
flowprobe_variant_t which;
};
u32 as_u32[FLOWPROBE_KEY_IN_U32];
}) flowprobe_key_t;
/* *INDENT-ON* */
STATIC_ASSERT (sizeof (flowprobe_key_t) == FLOWPROBE_KEY_IN_U32 *
sizeof (u32), "flowprobe_key_t padding is wrong");
typedef struct
{
u32 sec;
u32 nsec;
} timestamp_nsec_t;
typedef struct
{
flowprobe_key_t key;
u64 packetcount;
u64 octetcount;
timestamp_nsec_t flow_start;
timestamp_nsec_t flow_end;
f64 last_updated;
f64 last_exported;
u32 passive_timer_handle;
union
{
struct
{
u16 flags;
} tcp;
} prot;
} flowprobe_entry_t;
/**
* @file
* @brief flow-per-packet plugin header file
*/
typedef struct
{
/** API message ID base */
u16 msg_id_base;
flowprobe_protocol_context_t context[FLOW_N_VARIANTS];
u16 template_reports[FLOW_N_RECORDS];
u16 template_size[FLOW_N_RECORDS];
/** Time reference pair */
u64 nanosecond_time_0;
f64 vlib_time_0;
/** Per CPU flow-state */
u8 ht_log2len; /* Hash table size is 2^log2len */
u32 **hash_per_worker;
flowprobe_entry_t **pool_per_worker;
/* *INDENT-OFF* */
TWT (tw_timer_wheel) ** timers_per_worker;
/* *INDENT-ON* */
u32 **expired_passive_per_worker;
flowprobe_record_t record;
u32 active_timer;
u32 passive_timer;
flowprobe_entry_t *stateless_entry;
bool initialized;
bool disabled;
u16 template_per_flow[FLOW_N_VARIANTS];
u8 *flow_per_interface;
/** convenience vlib_main_t pointer */
vlib_main_t *vlib_main;
/** convenience vnet_main_t pointer */
vnet_main_t *vnet_main;
} flowprobe_main_t;
extern flowprobe_main_t flowprobe_main;
void flowprobe_flush_callback_ip4 (void);
void flowprobe_flush_callback_ip6 (void);
void flowprobe_flush_callback_l2 (void);
u8 *format_flowprobe_entry (u8 * s, va_list * args);
#endif
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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