src/snmp_core.h

   1 /*
   2  * Copyright (C) 1996-2015 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 /* DEBUG: section 49    SNMP Interface */
  10
  11 #ifndef SQUID_SNMP_CORE_H
  12 #define SQUID_SNMP_CORE_H
  13
  14 #include "cache_snmp.h"
  15 #include "comm/forward.h"
  16 #include "typedefs.h"
  17
  18 namespace Ip
  19 {
  20 class Address;
  21 }
  22 class MemBuf;
  23
  24 #define SNMP_REQUEST_SIZE 4096
  25 #define MAX_PROTOSTAT 5
  26
  27 typedef struct _mib_tree_entry mib_tree_entry;
  28 typedef oid *(instance_Fn) (oid * name, snint * len, mib_tree_entry * current, oid_ParseFn ** Fn);
  29 typedef enum {atNone = 0, atSum, atAverage, atMax, atMin} AggrType;
  30
  31 struct _mib_tree_entry {
  32     oid *name;
  33     int len;
  34     oid_ParseFn *parsefunction;
  35     instance_Fn *instancefunction;
  36     int children;
  37
  38     struct _mib_tree_entry **leaves;
  39
  40     struct _mib_tree_entry *parent;
  41     AggrType aggrType;
  42 };
  43
  44 struct snmp_pdu* snmpAgentResponse(struct snmp_pdu* PDU);
  45 AggrType snmpAggrType(oid* Current, snint CurrentLen);
  46
  47 extern Comm::ConnectionPointer snmpOutgoingConn;
  48
  49 extern PF snmpHandleUdp;
  50 void snmpInit(void);
  51 void snmpOpenPorts(void);
  52 void snmpClosePorts(void);
  53 const char * snmpDebugOid(oid * Name, snint Len, MemBuf &outbuf);
  54 void addr2oid(Ip::Address &addr, oid *Dest);
  55 void oid2addr(oid *Dest, Ip::Address &addr, u_int code);
  56
  57 #endif /* SQUID_SNMP_CORE_H */
  58