1/** 2 * @file 3 * SNMP support API for implementing netifs and statitics for MIB2 4 */ 5 6/* 7 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without modification, 11 * are permitted provided that the following conditions are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright notice, 14 * this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright notice, 16 * this list of conditions and the following disclaimer in the documentation 17 * and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 24 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 30 * OF SUCH DAMAGE. 31 * 32 * This file is part of the lwIP TCP/IP stack. 33 * 34 * Author: Dirk Ziegelmeier <dziegel@gmx.de> 35 * 36 */ 37#ifndef LWIP_HDR_SNMP_H 38#define LWIP_HDR_SNMP_H 39 40#include "lwip/opt.h" 41#include "lwip/ip_addr.h" 42 43#ifdef __cplusplus 44extern "C" { 45#endif 46 47struct udp_pcb; 48struct netif; 49 50/** 51 * @defgroup netif_mib2 MIB2 statistics 52 * @ingroup netif 53 */ 54 55/* MIB2 statistics functions */ 56#if MIB2_STATS /* don't build if not configured for use in lwipopts.h */ 57/** 58 * @ingroup netif_mib2 59 * @see RFC1213, "MIB-II, 6. Definitions" 60 */ 61enum snmp_ifType { 62 snmp_ifType_other=1, /* none of the following */ 63 snmp_ifType_regular1822, 64 snmp_ifType_hdh1822, 65 snmp_ifType_ddn_x25, 66 snmp_ifType_rfc877_x25, 67 snmp_ifType_ethernet_csmacd, 68 snmp_ifType_iso88023_csmacd, 69 snmp_ifType_iso88024_tokenBus, 70 snmp_ifType_iso88025_tokenRing, 71 snmp_ifType_iso88026_man, 72 snmp_ifType_starLan, 73 snmp_ifType_proteon_10Mbit, 74 snmp_ifType_proteon_80Mbit, 75 snmp_ifType_hyperchannel, 76 snmp_ifType_fddi, 77 snmp_ifType_lapb, 78 snmp_ifType_sdlc, 79 snmp_ifType_ds1, /* T-1 */ 80 snmp_ifType_e1, /* european equiv. of T-1 */ 81 snmp_ifType_basicISDN, 82 snmp_ifType_primaryISDN, /* proprietary serial */ 83 snmp_ifType_propPointToPointSerial, 84 snmp_ifType_ppp, 85 snmp_ifType_softwareLoopback, 86 snmp_ifType_eon, /* CLNP over IP [11] */ 87 snmp_ifType_ethernet_3Mbit, 88 snmp_ifType_nsip, /* XNS over IP */ 89 snmp_ifType_slip, /* generic SLIP */ 90 snmp_ifType_ultra, /* ULTRA technologies */ 91 snmp_ifType_ds3, /* T-3 */ 92 snmp_ifType_sip, /* SMDS */ 93 snmp_ifType_frame_relay 94}; 95 96/** This macro has a precision of ~49 days because sys_now returns u32_t. \#define your own if you want ~490 days. */ 97#ifndef MIB2_COPY_SYSUPTIME_TO 98#define MIB2_COPY_SYSUPTIME_TO(ptrToVal) (*(ptrToVal) = (sys_now() / 10)) 99#endif 100 101/** 102 * @ingroup netif_mib2 103 * Increment stats member for SNMP MIB2 stats (struct stats_mib2_netif_ctrs) 104 */ 105#define MIB2_STATS_NETIF_INC(n, x) do { ++(n)->mib2_counters.x; } while(0) 106/** 107 * @ingroup netif_mib2 108 * Add value to stats member for SNMP MIB2 stats (struct stats_mib2_netif_ctrs) 109 */ 110#define MIB2_STATS_NETIF_ADD(n, x, val) do { (n)->mib2_counters.x += (val); } while(0) 111 112/** 113 * @ingroup netif_mib2 114 * Init MIB2 statistic counters in netif 115 * @param netif Netif to init 116 * @param type one of enum @ref snmp_ifType 117 * @param speed your link speed here (units: bits per second) 118 */ 119#define MIB2_INIT_NETIF(netif, type, speed) do { \ 120 (netif)->link_type = (type); \ 121 (netif)->link_speed = (speed);\ 122 (netif)->ts = 0; \ 123 (netif)->mib2_counters.ifinoctets = 0; \ 124 (netif)->mib2_counters.ifinucastpkts = 0; \ 125 (netif)->mib2_counters.ifinnucastpkts = 0; \ 126 (netif)->mib2_counters.ifindiscards = 0; \ 127 (netif)->mib2_counters.ifinerrors = 0; \ 128 (netif)->mib2_counters.ifinunknownprotos = 0; \ 129 (netif)->mib2_counters.ifoutoctets = 0; \ 130 (netif)->mib2_counters.ifoutucastpkts = 0; \ 131 (netif)->mib2_counters.ifoutnucastpkts = 0; \ 132 (netif)->mib2_counters.ifoutdiscards = 0; \ 133 (netif)->mib2_counters.ifouterrors = 0; } while(0) 134#else /* MIB2_STATS */ 135#ifndef MIB2_COPY_SYSUPTIME_TO 136#define MIB2_COPY_SYSUPTIME_TO(ptrToVal) 137#endif 138#define MIB2_INIT_NETIF(netif, type, speed) 139#define MIB2_STATS_NETIF_INC(n, x) 140#define MIB2_STATS_NETIF_ADD(n, x, val) 141#endif /* MIB2_STATS */ 142 143/* LWIP MIB2 callbacks */ 144#if LWIP_MIB2_CALLBACKS /* don't build if not configured for use in lwipopts.h */ 145/* network interface */ 146void mib2_netif_added(struct netif *ni); 147void mib2_netif_removed(struct netif *ni); 148 149#if LWIP_IPV4 && LWIP_ARP 150/* ARP (for atTable and ipNetToMediaTable) */ 151void mib2_add_arp_entry(struct netif *ni, ip4_addr_t *ip); 152void mib2_remove_arp_entry(struct netif *ni, ip4_addr_t *ip); 153#else /* LWIP_IPV4 && LWIP_ARP */ 154#define mib2_add_arp_entry(ni,ip) 155#define mib2_remove_arp_entry(ni,ip) 156#endif /* LWIP_IPV4 && LWIP_ARP */ 157 158/* IP */ 159#if LWIP_IPV4 160void mib2_add_ip4(struct netif *ni); 161void mib2_remove_ip4(struct netif *ni); 162void mib2_add_route_ip4(u8_t dflt, struct netif *ni); 163void mib2_remove_route_ip4(u8_t dflt, struct netif *ni); 164#endif /* LWIP_IPV4 */ 165 166/* UDP */ 167#if LWIP_UDP 168void mib2_udp_bind(struct udp_pcb *pcb); 169void mib2_udp_unbind(struct udp_pcb *pcb); 170#endif /* LWIP_UDP */ 171 172#else /* LWIP_MIB2_CALLBACKS */ 173/* LWIP_MIB2_CALLBACKS support not available */ 174/* define everything to be empty */ 175 176/* network interface */ 177#define mib2_netif_added(ni) 178#define mib2_netif_removed(ni) 179 180/* ARP */ 181#define mib2_add_arp_entry(ni,ip) 182#define mib2_remove_arp_entry(ni,ip) 183 184/* IP */ 185#define mib2_add_ip4(ni) 186#define mib2_remove_ip4(ni) 187#define mib2_add_route_ip4(dflt, ni) 188#define mib2_remove_route_ip4(dflt, ni) 189 190/* UDP */ 191#define mib2_udp_bind(pcb) 192#define mib2_udp_unbind(pcb) 193#endif /* LWIP_MIB2_CALLBACKS */ 194 195/* for source-code compatibility reasons only, can be removed (not used internally) */ 196#define NETIF_INIT_SNMP MIB2_INIT_NETIF 197#define snmp_add_ifinoctets(ni,value) MIB2_STATS_NETIF_ADD(ni, ifinoctets, value) 198#define snmp_inc_ifinucastpkts(ni) MIB2_STATS_NETIF_INC(ni, ifinucastpkts) 199#define snmp_inc_ifinnucastpkts(ni) MIB2_STATS_NETIF_INC(ni, ifinnucastpkts) 200#define snmp_inc_ifindiscards(ni) MIB2_STATS_NETIF_INC(ni, ifindiscards) 201#define snmp_inc_ifinerrors(ni) MIB2_STATS_NETIF_INC(ni, ifinerrors) 202#define snmp_inc_ifinunknownprotos(ni) MIB2_STATS_NETIF_INC(ni, ifinunknownprotos) 203#define snmp_add_ifoutoctets(ni,value) MIB2_STATS_NETIF_ADD(ni, ifoutoctets, value) 204#define snmp_inc_ifoutucastpkts(ni) MIB2_STATS_NETIF_INC(ni, ifoutucastpkts) 205#define snmp_inc_ifoutnucastpkts(ni) MIB2_STATS_NETIF_INC(ni, ifoutnucastpkts) 206#define snmp_inc_ifoutdiscards(ni) MIB2_STATS_NETIF_INC(ni, ifoutdiscards) 207#define snmp_inc_ifouterrors(ni) MIB2_STATS_NETIF_INC(ni, ifouterrors) 208 209#ifdef __cplusplus 210} 211#endif 212 213#endif /* LWIP_HDR_SNMP_H */ 214