linux/include/net/snmp.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *
 *		SNMP MIB entries for the IP subsystem.
 *		
 *		Alan Cox <[email protected]>
 *
 *		We don't chose to implement SNMP in the kernel (this would
 *		be silly as SNMP is a pain in the backside in places). We do
 *		however need to collect the MIB statistics and export them
 *		out of /proc (eventually)
 */
 
#ifndef _SNMP_H
#define _SNMP_H

#include <linux/cache.h>
#include <linux/snmp.h>
#include <linux/smp.h>

/*
 * Mibs are stored in array of unsigned long.
 */
/*
 * struct snmp_mib{}
 *  - list of entries for particular API (such as /proc/net/snmp)
 *  - name of entries.
 */
struct snmp_mib { … };

#define SNMP_MIB_ITEM(_name,_entry) …

#define SNMP_MIB_SENTINEL …

/*
 * We use unsigned longs for most mibs but u64 for ipstats.
 */
#include <linux/u64_stats_sync.h>

/* IPstats */
#define IPSTATS_MIB_MAX …
struct ipstats_mib { … };

/* ICMP */
#define ICMP_MIB_MAX …
struct icmp_mib { … };

#define ICMPMSG_MIB_MAX …
struct icmpmsg_mib { … };

/* ICMP6 (IPv6-ICMP) */
#define ICMP6_MIB_MAX …
/* per network ns counters */
struct icmpv6_mib { … };
/* per device counters, (shared on all cpus) */
struct icmpv6_mib_device { … };

#define ICMP6MSG_MIB_MAX …
/* per network ns counters */
struct icmpv6msg_mib { … };
/* per device counters, (shared on all cpus) */
struct icmpv6msg_mib_device { … };


/* TCP */
#define TCP_MIB_MAX …
struct tcp_mib { … };

/* UDP */
#define UDP_MIB_MAX …
struct udp_mib { … };

/* Linux */
#define LINUX_MIB_MAX …
struct linux_mib { … };

/* Linux Xfrm */
#define LINUX_MIB_XFRMMAX …
struct linux_xfrm_mib { … };

/* Linux TLS */
#define LINUX_MIB_TLSMAX …
struct linux_tls_mib { … };

#define DEFINE_SNMP_STAT(type, name) …
#define DEFINE_SNMP_STAT_ATOMIC(type, name) …
#define DECLARE_SNMP_STAT(type, name) …

#define __SNMP_INC_STATS(mib, field) …

#define SNMP_INC_STATS_ATOMIC_LONG(mib, field) …

#define SNMP_INC_STATS(mib, field) …

#define SNMP_DEC_STATS(mib, field) …

#define __SNMP_ADD_STATS(mib, field, addend) …

#define SNMP_ADD_STATS(mib, field, addend) …
#define SNMP_UPD_PO_STATS(mib, basefield, addend) …
#define __SNMP_UPD_PO_STATS(mib, basefield, addend) …


#if BITS_PER_LONG==32

#define __SNMP_ADD_STATS64 …

#define SNMP_ADD_STATS64 …

#define __SNMP_INC_STATS64 …
#define SNMP_INC_STATS64 …
#define __SNMP_UPD_PO_STATS64 …
#define SNMP_UPD_PO_STATS64 …
#else
#define __SNMP_INC_STATS64(mib, field) …
#define SNMP_INC_STATS64(mib, field) …
#define SNMP_DEC_STATS64(mib, field) …
#define __SNMP_ADD_STATS64(mib, field, addend) …
#define SNMP_ADD_STATS64(mib, field, addend) …
#define SNMP_UPD_PO_STATS64(mib, basefield, addend) …
#define __SNMP_UPD_PO_STATS64(mib, basefield, addend) …
#endif

#endif