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