mib2.c

LwIP是瑞士计算机科学院(Swedish Institute of Computer Science)的AdamDunkels等开发的一套用于嵌入式系统的开放源代码TCP/IP协议栈。LwIP的含义

  MIB_NODE_AR,
  3,
  atentry_ids,
  atentry_nodes
};

const s32_t attable_id = 1;
struct mib_node* const attable_node = (struct mib_node* const)&atentry;
const struct mib_array_node attable = {
  &noleafs_get_object_def,
  &noleafs_get_value,
  &noleafs_set_test,
  &noleafs_set_value,
  MIB_NODE_AR,
  1,
  &attable_id,
  &attable_node
};

/* at .1.3.6.1.2.1.3 */
s32_t at_id = 1;
struct mib_node* at_node = (struct mib_node* const)&attable;
struct mib_ram_array_node at = {
  &noleafs_get_object_def,
  &noleafs_get_value,
  &noleafs_set_test,
  &noleafs_set_value,
  MIB_NODE_RA,
  0,
  &at_id,
  &at_node
};

/** index root node for ifTable */
struct mib_list_rootnode iflist_root = {
  &ifentry_get_object_def,
  &ifentry_get_value,
  &noleafs_set_test,
  &noleafs_set_value,
  MIB_NODE_LR,
  0,
  NULL,
  NULL,
  0
};
const s32_t ifentry_ids[22] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22 };
struct mib_node* const ifentry_nodes[22] = {
  (struct mib_node* const)&iflist_root, (struct mib_node* const)&iflist_root,
  (struct mib_node* const)&iflist_root, (struct mib_node* const)&iflist_root,
  (struct mib_node* const)&iflist_root, (struct mib_node* const)&iflist_root,
  (struct mib_node* const)&iflist_root, (struct mib_node* const)&iflist_root,
  (struct mib_node* const)&iflist_root, (struct mib_node* const)&iflist_root,
  (struct mib_node* const)&iflist_root, (struct mib_node* const)&iflist_root,
  (struct mib_node* const)&iflist_root, (struct mib_node* const)&iflist_root,
  (struct mib_node* const)&iflist_root, (struct mib_node* const)&iflist_root,
  (struct mib_node* const)&iflist_root, (struct mib_node* const)&iflist_root,
  (struct mib_node* const)&iflist_root, (struct mib_node* const)&iflist_root,
  (struct mib_node* const)&iflist_root, (struct mib_node* const)&iflist_root
};
const struct mib_array_node ifentry = {
  &noleafs_get_object_def,
  &noleafs_get_value,
  &noleafs_set_test,
  &noleafs_set_value,
  MIB_NODE_AR,
  22,
  ifentry_ids,
  ifentry_nodes
};

s32_t iftable_id = 1;
struct mib_node* iftable_node = (struct mib_node* const)&ifentry;
struct mib_ram_array_node iftable = {
  &noleafs_get_object_def,
  &noleafs_get_value,
  &noleafs_set_test,
  &noleafs_set_value,
  MIB_NODE_RA,
  0,
  &iftable_id,
  &iftable_node
};

/* interfaces .1.3.6.1.2.1.2 */
const mib_scalar_node interfaces_scalar = {
  &interfaces_get_object_def,
  &interfaces_get_value,
  &noleafs_set_test,
  &noleafs_set_value,
  MIB_NODE_SC,
  0
};
const s32_t interfaces_ids[2] = { 1, 2 };
struct mib_node* const interfaces_nodes[2] = {
  (struct mib_node* const)&interfaces_scalar, (struct mib_node* const)&iftable
};
const struct mib_array_node interfaces = {
  &noleafs_get_object_def,
  &noleafs_get_value,
  &noleafs_set_test,
  &noleafs_set_value,
  MIB_NODE_AR,
  2,
  interfaces_ids,
  interfaces_nodes
};


/*             0 1 2 3 4 5 6 */
/* system .1.3.6.1.2.1.1 */
const mib_scalar_node sys_tem_scalar = {
  &system_get_object_def,
  &system_get_value,
  &system_set_test,
  &system_set_value,
  MIB_NODE_SC,
  0
};
const s32_t sys_tem_ids[7] = { 1, 2, 3, 4, 5, 6, 7 };
struct mib_node* const sys_tem_nodes[7] = {
  (struct mib_node* const)&sys_tem_scalar, (struct mib_node* const)&sys_tem_scalar,
  (struct mib_node* const)&sys_tem_scalar, (struct mib_node* const)&sys_tem_scalar,
  (struct mib_node* const)&sys_tem_scalar, (struct mib_node* const)&sys_tem_scalar,
  (struct mib_node* const)&sys_tem_scalar
};
/* work around name issue with 'sys_tem', some compiler(s?) seem to reserve 'system' */
const struct mib_array_node sys_tem = {
  &noleafs_get_object_def,
  &noleafs_get_value,
  &noleafs_set_test,
  &noleafs_set_value,
  MIB_NODE_AR,
  7,
  sys_tem_ids,
  sys_tem_nodes
};

/* mib-2 .1.3.6.1.2.1 */
#if LWIP_TCP
#define MIB2_GROUPS 8
#else
#define MIB2_GROUPS 7
#endif
const s32_t mib2_ids[MIB2_GROUPS] =
{
  1,
  2,
  3,
  4,
  5,
#if LWIP_TCP
  6,
#endif
  7,
  11
};
struct mib_node* const mib2_nodes[MIB2_GROUPS] = {
  (struct mib_node* const)&sys_tem,
  (struct mib_node* const)&interfaces,
  (struct mib_node* const)&at,
  (struct mib_node* const)&ip,
  (struct mib_node* const)&icmp,
#if LWIP_TCP
  (struct mib_node* const)&tcp,
#endif
  (struct mib_node* const)&udp,
  (struct mib_node* const)&snmp
};

const struct mib_array_node mib2 = {
  &noleafs_get_object_def,
  &noleafs_get_value,
  &noleafs_set_test,
  &noleafs_set_value,
  MIB_NODE_AR,
  MIB2_GROUPS,
  mib2_ids,
  mib2_nodes
};

/* mgmt .1.3.6.1.2 */
const s32_t mgmt_ids[1] = { 1 };
struct mib_node* const mgmt_nodes[1] = { (struct mib_node* const)&mib2 };
const struct mib_array_node mgmt = {
  &noleafs_get_object_def,
  &noleafs_get_value,
  &noleafs_set_test,
  &noleafs_set_value,
  MIB_NODE_AR,
  1,
  mgmt_ids,
  mgmt_nodes
};

/* internet .1.3.6.1 */
#if SNMP_PRIVATE_MIB
s32_t internet_ids[2] = { 2, 4 };
struct mib_node* const internet_nodes[2] = { (struct mib_node* const)&mgmt, (struct mib_node* const)&private };
const struct mib_array_node internet = {
  &noleafs_get_object_def,
  &noleafs_get_value,
  &noleafs_set_test,
  &noleafs_set_value,
  MIB_NODE_AR,
  2,
  internet_ids,
  internet_nodes
};
#else
const s32_t internet_ids[1] = { 2 };
struct mib_node* const internet_nodes[1] = { (struct mib_node* const)&mgmt };
const struct mib_array_node internet = {
  &noleafs_get_object_def,
  &noleafs_get_value,
  &noleafs_set_test,
  &noleafs_set_value,
  MIB_NODE_AR,
  1,
  internet_ids,
  internet_nodes
};
#endif

/** mib-2.system.sysObjectID  */
static struct snmp_obj_id sysobjid = {SNMP_SYSOBJID_LEN, SNMP_SYSOBJID};
/** enterprise ID for generic TRAPs, .iso.org.dod.internet.mgmt.mib-2.snmp */
static struct snmp_obj_id snmpgrp_id = {7,{1,3,6,1,2,1,11}};
/** mib-2.system.sysServices */
static const s32_t sysservices = SNMP_SYSSERVICES;

/** mib-2.system.sysDescr */
static const u8_t sysdescr_len_default = 4;
static const u8_t sysdescr_default[] = "lwIP";
static u8_t* sysdescr_len_ptr = (u8_t*)&sysdescr_len_default;
static u8_t* sysdescr_ptr = (u8_t*)&sysdescr_default[0];
/** mib-2.system.sysContact */
static const u8_t syscontact_len_default = 0;
static const u8_t syscontact_default[] = "";
static u8_t* syscontact_len_ptr = (u8_t*)&syscontact_len_default;
static u8_t* syscontact_ptr = (u8_t*)&syscontact_default[0];
/** mib-2.system.sysName */
static const u8_t sysname_len_default = 8;
static const u8_t sysname_default[] = "FQDN-unk";
static u8_t* sysname_len_ptr = (u8_t*)&sysname_len_default;
static u8_t* sysname_ptr = (u8_t*)&sysname_default[0];
/** mib-2.system.sysLocation */
static const u8_t syslocation_len_default = 0;
static const u8_t syslocation_default[] = "";
static u8_t* syslocation_len_ptr = (u8_t*)&syslocation_len_default;
static u8_t* syslocation_ptr = (u8_t*)&syslocation_default[0];
/** mib-2.snmp.snmpEnableAuthenTraps */
static const u8_t snmpenableauthentraps_default = 2; /* disabled */
static u8_t* snmpenableauthentraps_ptr = (u8_t*)&snmpenableauthentraps_default;

/** mib-2.interfaces.ifTable.ifEntry.ifSpecific (zeroDotZero) */
static const struct snmp_obj_id ifspecific = {2, {0, 0}};
/** mib-2.ip.ipRouteTable.ipRouteEntry.ipRouteInfo (zeroDotZero) */
static const struct snmp_obj_id iprouteinfo = {2, {0, 0}};



/* mib-2.system counter(s) */
static u32_t sysuptime = 0;

/* mib-2.ip counter(s) */
static u32_t ipinreceives = 0,
             ipinhdrerrors = 0,
             ipinaddrerrors = 0,
             ipforwdatagrams = 0,
             ipinunknownprotos = 0,
             ipindiscards = 0,
             ipindelivers = 0,
             ipoutrequests = 0,
             ipoutdiscards = 0,
             ipoutnoroutes = 0,
             ipreasmreqds = 0,
             ipreasmoks = 0,
             ipreasmfails = 0,
             ipfragoks = 0,
             ipfragfails = 0,
             ipfragcreates = 0,
             iproutingdiscards = 0;
/* mib-2.icmp counter(s) */
static u32_t icmpinmsgs = 0,
             icmpinerrors = 0,
             icmpindestunreachs = 0,
             icmpintimeexcds = 0,
             icmpinparmprobs = 0,
             icmpinsrcquenchs = 0,
             icmpinredirects = 0,
             icmpinechos = 0,
             icmpinechoreps = 0,
             icmpintimestamps = 0,
             icmpintimestampreps = 0,
             icmpinaddrmasks = 0,
             icmpinaddrmaskreps = 0,
             icmpoutmsgs = 0,
             icmpouterrors = 0,
             icmpoutdestunreachs = 0,
             icmpouttimeexcds = 0,
             icmpoutparmprobs = 0,
             icmpoutsrcquenchs = 0,
             icmpoutredirects = 0,
             icmpoutechos = 0,
             icmpoutechoreps = 0,
             icmpouttimestamps = 0,
             icmpouttimestampreps = 0,
             icmpoutaddrmasks = 0,
             icmpoutaddrmaskreps = 0;
/* mib-2.tcp counter(s) */
static u32_t tcpactiveopens = 0,
             tcppassiveopens = 0,
             tcpattemptfails = 0,
             tcpestabresets = 0,
             tcpinsegs = 0,
             tcpoutsegs = 0,
             tcpretranssegs = 0,
             tcpinerrs = 0,
             tcpoutrsts = 0;
/* mib-2.udp counter(s) */
static u32_t udpindatagrams = 0,
             udpnoports = 0,
             udpinerrors = 0,
             udpoutdatagrams = 0;
/* mib-2.snmp counter(s) */
static u32_t snmpinpkts = 0,
             snmpoutpkts = 0,
             snmpinbadversions = 0,
             snmpinbadcommunitynames = 0,
             snmpinbadcommunityuses = 0,
             snmpinasnparseerrs = 0,
             snmpintoobigs = 0,
             snmpinnosuchnames = 0,
             snmpinbadvalues = 0,
             snmpinreadonlys = 0,
             snmpingenerrs = 0,
             snmpintotalreqvars = 0,
             snmpintotalsetvars = 0,
             snmpingetrequests = 0,
             snmpingetnexts = 0,
             snmpinsetrequests = 0,
             snmpingetresponses = 0,
             snmpintraps = 0,
             snmpouttoobigs = 0,
             snmpoutnosuchnames = 0,
             snmpoutbadvalues = 0,
             snmpoutgenerrs = 0,
             snmpoutgetrequests = 0,
             snmpoutgetnexts = 0,
             snmpoutsetrequests = 0,
             snmpoutgetresponses = 0,
             snmpouttraps = 0;



/* prototypes of the following functions are in lwip/src/include/lwip/snmp.h */
/**
 * Copy octet string.
 *
 * @param dst points to destination
 * @param src points to source
 * @param n number of octets to copy.
 */
void ocstrncpy(u8_t *dst, u8_t *src, u8_t n)
{
  while (n > 0)
  {
    n--;
    *dst++ = *src++;
  }
}

/**
 * Copy object identifier (s32_t) array.
 *
 * @param dst points to destination
 * @param src points to source
 * @param n number of sub identifiers to copy.
 */
void objectidncpy(s32_t *dst, s32_t *src, u8_t n)
{
  while(n > 0)
  {
    n--;
    *dst++ = *src++;
  }
}

/**
 * Initializes sysDescr pointers.
 *
 * @param str if non-NULL then copy str pointer
 * @param strlen points to string length, excluding zero terminator
 */
void snmp_set_sysdesr(u8_t *str, u8_t *strlen)
{
  if (str != NULL)
  {
    sysdescr_ptr = str;
    sysdescr_len_ptr = strlen;
  }
}

void snmp_get_sysobjid_ptr(struct snmp_obj_id **oid)
{
  *oid = &sysobjid;
}

/**
 * Initializes sysObjectID value.
 *
 * @param oid points to stuct snmp_obj_id to copy
 */
void snmp_set_sysobjid(struct snmp_obj_id *oid)
{
  sysobjid = *oid;
}

/**
 * Must be called at regular 10 msec interval from a timer interrupt
 * or signal handler depending on your runtime environment.
 */
void snmp_inc_sysuptime(void)
{
  sysuptime++;
}

void snmp_get_sysuptime(u32_t *value)
{
  *value = sysuptime;
}

/**
 * Initializes sysContact pointers,
 * e.g. ptrs to non-volatile memory external to lwIP.
 *
 * @param str if non-NULL then copy str pointer
 * @param strlen points to string length, excluding zero terminator
 */
void snmp_set_syscontact(u8_t *ocstr, u8_t *ocstrlen)
{
  if (ocstr != NULL)
  {
    syscontact_ptr = ocstr;
    syscontact_len_ptr = ocstrlen;
  }
}

/**
 * Initializes sysName pointers,
 * e.g. ptrs to non-volatile memory external to lwIP.
 *
 * @param str if non-NULL then copy str pointer
 * @param strlen points to string length, excluding zero terminator
 */
void snmp_set_sysname(u8_t *ocstr, u8_t *ocstrlen)
{
  if (ocstr != NULL)
  {
    sysname_ptr = ocstr;
    sysname_len_ptr = ocstrlen;
  }
}

/**
 * Initializes sysLocation pointers,
 * e.g. ptrs to non-volatile memory external to lwIP.
 *
 * @param str if non-NULL then copy str pointer
 * @param strlen points to string length, excluding zero terminator
 */
void snmp_set_syslocation(u8_t *ocstr, u8_t *ocstrlen)
{
  if (ocstr != NULL)
  {
    syslocation_ptr = ocstr;
    syslocation_len_ptr = ocstrlen;
  }
}


void snmp_add_ifinoctets(struct netif *ni, u32_t value)
{
  ni->ifinoctets += value;
}

void snmp_inc_ifinucastpkts(struct netif *ni)
{
  (ni->ifinucastpkts)++;
}

void snmp_inc_ifinnucastpkts(struct netif *ni)
{
  (ni->ifinnucastpkts)++;
}

void snmp_inc_ifindiscards(struct netif *ni)
{
  (ni->ifindiscards)++;
}

void snmp_add_ifoutoctets(struct netif *ni, u32_t value)
{
  ni->ifoutoctets += value;
}

void snmp_inc_ifoutucastpkts(struct netif *ni)
{
  (ni->ifoutucastpkts)++;
}

void snmp_inc_ifoutnucastpkts(struct netif *ni)
{
  (ni->ifoutnucastpkts)++;
}

void snmp_inc_ifoutdiscards(struct netif *ni)
{
  (ni->ifoutdiscards)++;
}

void snmp_inc_iflist(void)