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#ifndef __SNMPEER_H
#define __SNMPEER_H
namespace Klever {
class CASNAny {
public:
enum {
asnCls = 0xC0,
asnClsUniversal = 0x00,
asnClsApplication = 0x40,
asnClsContextSpecific = 0x80,
asnClsPrivate = 0xC0,
asnConstructed = 0x20,
asnPrimitive = 0x00,
asnTag = 0x1F,
// ASN.1 Primitive Tags
asnTagInteger = 0x02,
asnTagOctetString = 0x04,
asnTagNull = 0x05,
asnTagOID = 0x06,
// ASN.1 Constructed Tags
asnTagSequence = 0x10,
// RFC1155 Primitive Tags
asnTagIP = 0x00,
asnTagCounter = 0x01,
asnTagGauge = 0x02,
asnTagTicks = 0x03,
asnTagOpaque = 0x04,
// RFC1213 alias
asnTagDispString = 0x04, // (ASN.1 Octet string)
// RFC1157 Constructed Tags
asnTagGetRequest = 0x00,
asnTagGetNextRequest = 0x01,
asnTagGetResponse = 0x02,
asnTagSetRequest = 0x03,
asnTagTrap = 0x04
};
enum {
typeASNInteger = (asnClsUniversal|asnPrimitive|asnTagInteger),
typeASNOctetString = (asnClsUniversal|asnPrimitive|asnTagOctetString),
typeASNNull = (asnClsUniversal|asnPrimitive|asnTagNull),
typeASNOID = (asnClsUniversal|asnPrimitive|asnTagOID),
typeASNSequence = (asnClsUniversal|asnConstructed|asnTagSequence),
typeASNSequenceOf = (asnClsUniversal|asnConstructed|asnTagSequence),
typeASNIP = (asnClsApplication|asnPrimitive|asnTagIP),
typeASNCounter = (asnClsApplication|asnPrimitive|asnTagCounter),
typeASNGauge = (asnClsApplication|asnPrimitive|asnTagGauge),
typeASNTicks = (asnClsApplication|asnPrimitive|asnTagTicks),
typeASNOpaque = (asnClsApplication|asnPrimitive|asnTagOpaque),
typeASNDispString = (asnClsUniversal|asnPrimitive|asnTagOctetString),
typeASNGetRequest = (asnClsContextSpecific|asnConstructed|asnTagGetRequest),
typeASNGetNextRequest = (asnClsContextSpecific|asnConstructed|asnTagGetNextRequest),
typeASNGetResponse = (asnClsContextSpecific|asnConstructed|asnTagGetResponse),
typeASNSetRequest = (asnClsContextSpecific|asnConstructed|asnTagSetRequest),
typeASNTrap = (asnClsContextSpecific|asnConstructed|asnTagTrap)
};
typedef LONG asnInteger;
typedef LARGE_INTEGER asnInteger64;
typedef DWORD asnCounter;
typedef ULARGE_INTEGER asnCounter64;
typedef DWORD asnGauge;
typedef ULARGE_INTEGER asnGauge64;
typedef DWORD asnTicks;
typedef ULARGE_INTEGER asnTicks64;
struct asnDynamic {
UINT size;
LPBYTE data;
BOOL Allocate(UINT size) {
BOOL rv = Free();
if(size)
rv=rv&&(data=new BYTE[size]);
if(rv)
asnDynamic::size=size;
return rv;
}
BOOL Set(LPBYTE data,UINT size) {
BOOL rv = Allocate(size);
if(rv && size)
memmove(asnDynamic::data,data,size);
return rv;
}
BOOL Free() {
if(!size)
return TRUE;
delete data;
size=0;
data=0;
return TRUE;
}
void Clean() {
size=0;
data=0;
}
BOOL Copy(asnDynamic& src) {
BOOL rv = Free();
if(rv){
if(src.size)
rv=rv&&(data = new BYTE[src.size]);
if(rv){
if(size=src.size)
memmove(data,src.data,size);
}
}
return rv;
}
};
typedef asnDynamic asnOctetString;
typedef asnDynamic asnOID;
typedef in_addr asnIP;
typedef asnDynamic asnSequence;
BYTE type;
enum _storeType {
storeDynamic,
storeStatic
} storeType;
union {
asnInteger number;
asnInteger64 number64;
asnOctetString string;
asnOID oid;
asnSequence sequence;
asnIP ip;
asnCounter counter;
asnCounter64 counter64;
asnGauge gauge;
asnGauge64 gauge64;
asnTicks ticks;
asnTicks64 ticks64;
asnDynamic data;
} value;
CASNAny() : type(typeASNNull), storeType(storeStatic) { value.data.Clean(); }
CASNAny(CASNAny& src) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Copy(src); }
CASNAny(BYTE type) : type(type), storeType(storeStatic) { value.data.Clean(); }
CASNAny(BYTE type,LONG number) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Set(type,number); }
CASNAny(BYTE type,LONGLONG number) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Set(type,number); }
CASNAny(BYTE type,LPCTSTR string) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Set(type,string); }
CASNAny(BYTE type,LPBYTE data,UINT length) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Set(type,data,length); }
CASNAny(BYTE type,UINT* data,UINT size) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Set(type,(LPBYTE)data,size); }
CASNAny(in_addr& ip) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Set(ip); }
~CASNAny() { Free(); }
BOOL Set(BYTE type) {
BOOL rv = Free();
CASNAny::type=type;
return rv;
}
BOOL Set(BYTE type,LONG number) {
BOOL rv = Free();
CASNAny::type=type;
value.number=number;
storeType=storeStatic;
return rv;
}
BOOL Set(BYTE type,LONGLONG number) {
BOOL rv = Free();
CASNAny::type=type;
value.number64.QuadPart = number;
storeType=storeStatic;
return rv;
}
BOOL Set(BYTE type,LPCTSTR string) {
BOOL rv = Free();
CASNAny::type=type;
rv=rv&&value.string.Set((LPBYTE)string,strlen(string)+1);
if(rv){
value.string.size--;
storeType=storeDynamic;
}
return rv;
}
BOOL Set(BYTE type,LPBYTE data,UINT length) {
BOOL rv = Free();
CASNAny::type=type;
rv=rv&&value.data.Set(data,length);
if(rv)
storeType=storeDynamic;
return rv;
}
BOOL Set(in_addr& ip) {
BOOL rv = Free();
memmove(&value.ip,&ip,sizeof(value.ip));
type=typeASNIP;
storeType=storeStatic;
return rv;
}
BOOL Free() {
if(storeType==storeDynamic)
value.data.Free();
else{
memset(&value,0,sizeof(value));
value.data.Clean();
}
storeType=storeStatic;
type=typeASNNull;
return TRUE;
}
BOOL Copy(CASNAny& src) {
BOOL rv = Free();
if(src.storeType==storeDynamic){
rv=rv&&value.data.Copy(src.value.data);
if(rv){
type=src.type;
storeType=src.storeType;
}
}else{
memmove(this,&src,sizeof(*this));
}
return rv;
}
CASNAny& operator=(CASNAny& src) {
VERIFY(Copy(src));
return *this;
}
// High Level
CString GetString() {
ASSERT(storeType==storeDynamic);
CString rv;
LPTSTR b = rv.GetBuffer(value.data.size+1);
ASSERT(b);
b[value.data.size]=0;
memmove(b,value.data.data,value.data.size);
rv.ReleaseBuffer();
return rv;
}
};
class CSNMPVarBind {
public:
CASNAny name;
CASNAny value;
CSNMPVarBind() {}
CSNMPVarBind(CASNAny& name,CASNAny& value) : name(name), value(value) {}
CSNMPVarBind(CASNAny& name) : name(name) {}
CSNMPVarBind(CSNMPVarBind& src) { Copy(src); }
BOOL Copy(CSNMPVarBind& src) {
name.Copy(src.name);
value.Copy(src.value);
return TRUE;
}
CSNMPVarBind& operator=(CSNMPVarBind& src) {
Copy(src);
return *this;
}
// High level
BOOL IsName(UINT* prefix,UINT prefixSize,BOOL bExact=FALSE) {
if(name.type!=CASNAny::typeASNOID)
return FALSE;
if(name.value.oid.size<prefixSize)
return FALSE;
if(bExact && (name.value.oid.size!=prefixSize))
return FALSE;
return !memcmp(prefix,name.value.oid.data,prefixSize);
}
};
class CSNMPVarBindList : public CList<CSNMPVarBind,CSNMPVarBind&> {
public:
CSNMPVarBind* GetVarBind(UINT* prefix,UINT prefixSize,BOOL bExact=FALSE) {
POSITION p = GetHeadPosition();
while(p){
CSNMPVarBind& vb = GetNext(p);
if(vb.IsName(prefix,prefixSize,bExact))
return &vb;
}
return NULL;
}
};
class CSNMPeer {
public:
virtual BOOL Request(BYTE type,CSNMPVarBindList& in,CSNMPVarBindList& ou) = 0;
};
};
#endif // __SNMPEER_H
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