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 "ip/forward.h"
  17
  18 class MemBuf;
  19
  20 #define SNMP_REQUEST_SIZE 4096
  21 #define MAX_PROTOSTAT 5
  22
  23 typedef variable_list *(oid_ParseFn) (variable_list *, snint *);
  24 typedef struct _mib_tree_entry mib_tree_entry;
  25 typedef oid *(instance_Fn) (oid * name, snint * len, mib_tree_entry * current, oid_ParseFn ** Fn);
  26 typedef enum {atNone = 0, atSum, atAverage, atMax, atMin} AggrType;
  27
  28 struct _mib_tree_entry {
  29     oid *name;
  30     int len;
  31     oid_ParseFn *parsefunction;
  32     instance_Fn *instancefunction;
  33     int children;
  34
  35     struct _mib_tree_entry **leaves;
  36
  37     struct _mib_tree_entry *parent;
  38     AggrType aggrType;
  39 };
  40
  41 struct snmp_pdu* snmpAgentResponse(struct snmp_pdu* PDU);
  42 AggrType snmpAggrType(oid* Current, snint CurrentLen);
  43
  44 extern Comm::ConnectionPointer snmpOutgoingConn;
  45
  46 extern PF snmpHandleUdp;
  47 void snmpInit(void);
  48 void snmpOpenPorts(void);
  49 void snmpClosePorts(void);
  50 const char * snmpDebugOid(oid * Name, snint Len, MemBuf &outbuf);
  51 void addr2oid(Ip::Address &addr, oid *Dest);
  52 void oid2addr(oid *Dest, Ip::Address &addr, u_int code);
  53
  54 #endif /* SQUID_SNMP_CORE_H */
  55