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/*
* Copyright (c) 2024 InMon Corp.
* 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_sflow_usersock_h__
#define __included_sflow_usersock_h__
#include <vlib/vlib.h>
#include <vnet/vnet.h>
#include <vnet/pg/pg.h>
#include <vppinfra/error.h>
#include <sflow/sflow.h>
#include <asm/types.h>
#include <sys/socket.h>
#include <linux/types.h>
#include <linux/netlink.h>
#include <signal.h>
#include <ctype.h>
// ==================== shared with hsflowd mod_vpp =========================
// See https://github.com/sflow/host-sflow
#define SFLOW_VPP_NETLINK_USERSOCK_MULTICAST 29
typedef enum
{
SFLOW_VPP_MSG_STATUS = 1,
SFLOW_VPP_MSG_IF_COUNTERS
} EnumSFlowVppMsgType;
typedef enum
{
SFLOW_VPP_ATTR_PORTNAME, /* string */
SFLOW_VPP_ATTR_IFINDEX, /* u32 */
SFLOW_VPP_ATTR_IFTYPE, /* u32 */
SFLOW_VPP_ATTR_IFSPEED, /* u64 */
SFLOW_VPP_ATTR_IFDIRECTION, /* u32 */
SFLOW_VPP_ATTR_OPER_UP, /* u32 */
SFLOW_VPP_ATTR_ADMIN_UP, /* u32 */
SFLOW_VPP_ATTR_RX_OCTETS, /* u64 */
SFLOW_VPP_ATTR_TX_OCTETS, /* u64 */
SFLOW_VPP_ATTR_RX_PKTS, /* u64 */
SFLOW_VPP_ATTR_TX_PKTS, /* u64 */
SFLOW_VPP_ATTR_RX_BCASTS, /* u64 */
SFLOW_VPP_ATTR_TX_BCASTS, /* u64 */
SFLOW_VPP_ATTR_RX_MCASTS, /* u64 */
SFLOW_VPP_ATTR_TX_MCASTS, /* u64 */
SFLOW_VPP_ATTR_RX_DISCARDS, /* u64 */
SFLOW_VPP_ATTR_TX_DISCARDS, /* u64 */
SFLOW_VPP_ATTR_RX_ERRORS, /* u64 */
SFLOW_VPP_ATTR_TX_ERRORS, /* u64 */
SFLOW_VPP_ATTR_HW_ADDRESS, /* binary */
SFLOW_VPP_ATTR_UPTIME_S, /* u32 */
SFLOW_VPP_ATTR_OSINDEX, /* u32 Linux ifIndex number, where applicable */
SFLOW_VPP_ATTR_DROPS, /* u32 all FIFO and netlink sendmsg drops */
SFLOW_VPP_ATTR_SEQ, /* u32 send seq no */
/* enum shared with hsflowd, so only add here */
__SFLOW_VPP_ATTR_MAX
} EnumSFlowVppAttributes;
#define SFLOW_VPP_PSAMPLE_GROUP_INGRESS 3
#define SFLOW_VPP_PSAMPLE_GROUP_EGRESS 4
// =========================================================================
typedef struct
{
u64 byts;
u64 pkts;
u64 m_pkts;
u64 b_pkts;
u64 errs;
u64 drps;
} sflow_ctrs_t;
typedef struct
{
sflow_ctrs_t tx;
sflow_ctrs_t rx;
} sflow_counters_t;
typedef struct _SFLOWUS_field_t
{
EnumSFlowVppAttributes field;
int len;
} SFLOWUS_field_t;
typedef struct _SFLOWUS
{
u32 id;
int nl_sock;
u32 nl_seq;
u32 group_id;
} SFLOWUS;
typedef struct _SFLOWUSAttr
{
bool included : 1;
struct nlattr attr;
struct iovec val;
} SFLOWUSAttr;
typedef struct _SFLOWUSSpec
{
struct nlmsghdr nlh;
SFLOWUSAttr attr[__SFLOW_VPP_ATTR_MAX];
int n_attrs;
int attrs_len;
} SFLOWUSSpec;
bool SFLOWUS_open (SFLOWUS *ust);
bool SFLOWUS_close (SFLOWUS *ust);
bool SFLOWUSSpec_setMsgType (SFLOWUSSpec *spec, EnumSFlowVppMsgType type);
bool SFLOWUSSpec_setAttr (SFLOWUSSpec *spec, EnumSFlowVppAttributes field,
void *buf, int len);
#define SFLOWUSSpec_setAttrInt(spec, field, val) \
SFLOWUSSpec_setAttr ((spec), (field), &(val), sizeof (val))
int SFLOWUSSpec_send (SFLOWUS *ust, SFLOWUSSpec *spec);
#endif /* __included_sflow_usersock_h__ */
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