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path: root/shared-code/SNMPeer.h
authorMichael Krelin <hacker@klever.net>2004-07-05 01:53:09 (UTC)
committer Michael Krelin <hacker@klever.net>2004-07-05 01:53:09 (UTC)
commit955d4e00adc9f39ab93bf21f07506eb75b013c70 (patch) (unidiff)
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initial commit into svn repository
git-svn-id: http://svn.klever.net/kin/T42/trunk@1 fe716a7a-6dde-0310-88d9-d003556173a8
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1 #ifndef__SNMPEER_H
2#define __SNMPEER_H
3
4namespace Klever {
5
6 class CASNAny{
7public:
8 enum{
9 asnCls = 0xC0,
10 asnClsUniversal = 0x00,
11 asnClsApplication = 0x40,
12 asnClsContextSpecific = 0x80,
13 asnClsPrivate = 0xC0,
14 asnConstructed = 0x20,
15 asnPrimitive = 0x00,
16 asnTag = 0x1F,
17 // ASN.1 Primitive Tags
18 asnTagInteger = 0x02,
19 asnTagOctetString = 0x04,
20 asnTagNull = 0x05,
21 asnTagOID = 0x06,
22 // ASN.1 Constructed Tags
23 asnTagSequence = 0x10,
24 // RFC1155 Primitive Tags
25 asnTagIP = 0x00,
26 asnTagCounter = 0x01,
27 asnTagGauge = 0x02,
28 asnTagTicks = 0x03,
29 asnTagOpaque = 0x04,
30 // RFC1213 alias
31 asnTagDispString = 0x04,// (ASN.1 Octet string)
32 // RFC1157 Constructed Tags
33 asnTagGetRequest = 0x00,
34 asnTagGetNextRequest = 0x01,
35 asnTagGetResponse = 0x02,
36 asnTagSetRequest = 0x03,
37 asnTagTrap = 0x04
38 };
39 enum{
40 typeASNInteger = (asnClsUniversal|asnPrimitive|asnTagInteger),
41 typeASNOctetString = (asnClsUniversal|asnPrimitive|asnTagOctetString),
42 typeASNNull = (asnClsUniversal|asnPrimitive|asnTagNull),
43 typeASNOID = (asnClsUniversal|asnPrimitive|asnTagOID),
44
45 typeASNSequence = (asnClsUniversal|asnConstructed|asnTagSequence),
46 typeASNSequenceOf = (asnClsUniversal|asnConstructed|asnTagSequence),
47
48 typeASNIP = (asnClsApplication|asnPrimitive|asnTagIP),
49 typeASNCounter = (asnClsApplication|asnPrimitive|asnTagCounter),
50 typeASNGauge = (asnClsApplication|asnPrimitive|asnTagGauge),
51 typeASNTicks = (asnClsApplication|asnPrimitive|asnTagTicks),
52 typeASNOpaque = (asnClsApplication|asnPrimitive|asnTagOpaque),
53 typeASNDispString = (asnClsUniversal|asnPrimitive|asnTagOctetString),
54
55 typeASNGetRequest = (asnClsContextSpecific|asnConstructed|asnTagGetRequest),
56 typeASNGetNextRequest = (asnClsContextSpecific|asnConstructed|asnTagGetNextRequest),
57 typeASNGetResponse = (asnClsContextSpecific|asnConstructed|asnTagGetResponse),
58 typeASNSetRequest = (asnClsContextSpecific|asnConstructed|asnTagSetRequest),
59 typeASNTrap = (asnClsContextSpecific|asnConstructed|asnTagTrap)
60 };
61
62 typedefLONG asnInteger;
63 typedef LARGE_INTEGER asnInteger64;
64 typedefDWORD asnCounter;
65 typedef ULARGE_INTEGER asnCounter64;
66 typedef DWORD asnGauge;
67 typedef ULARGE_INTEGER asnGauge64;
68 typedefDWORD asnTicks;
69 typedef ULARGE_INTEGER asnTicks64;
70 struct asnDynamic{
71 UINT size;
72 LPBYTE data;
73 BOOL Allocate(UINT size) {
74 BOOL rv = Free();
75 if(size)
76 rv=rv&&(data=new BYTE[size]);
77 if(rv)
78 asnDynamic::size=size;
79 return rv;
80 }
81 BOOL Set(LPBYTE data,UINT size) {
82 BOOL rv = Allocate(size);
83 if(rv && size)
84 memmove(asnDynamic::data,data,size);
85 return rv;
86 }
87 BOOL Free() {
88 if(!size)
89 return TRUE;
90 delete data;
91 size=0;
92 data=0;
93 return TRUE;
94 }
95 void Clean() {
96 size=0;
97 data=0;
98 }
99 BOOL Copy(asnDynamic& src) {
100 BOOL rv = Free();
101 if(rv){
102 if(src.size)
103 rv=rv&&(data = new BYTE[src.size]);
104 if(rv){
105 if(size=src.size)
106 memmove(data,src.data,size);
107 }
108 }
109 return rv;
110 }
111 };
112 typedefasnDynamic asnOctetString;
113 typedef asnDynamic asnOID;
114 typedef in_addr asnIP;
115 typedef asnDynamic asnSequence;
116
117 BYTE type;
118 enum _storeType{
119 storeDynamic,
120 storeStatic
121 }storeType;
122 union{
123 asnInteger number;
124 asnInteger64 number64;
125 asnOctetString string;
126 asnOID oid;
127 asnSequence sequence;
128 asnIP ip;
129 asnCounter counter;
130 asnCounter64 counter64;
131 asnGauge gauge;
132 asnGauge64 gauge64;
133 asnTicks ticks;
134 asnTicks64 ticks64;
135 asnDynamic data;
136 } value;
137
138 CASNAny() : type(typeASNNull), storeType(storeStatic) { value.data.Clean(); }
139 CASNAny(CASNAny& src) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Copy(src); }
140 CASNAny(BYTE type) : type(type), storeType(storeStatic) { value.data.Clean(); }
141 CASNAny(BYTE type,LONG number) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Set(type,number); }
142 CASNAny(BYTE type,LONGLONG number) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Set(type,number); }
143 CASNAny(BYTE type,LPCTSTR string) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Set(type,string); }
144 CASNAny(BYTE type,LPBYTE data,UINT length) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Set(type,data,length); }
145 CASNAny(BYTE type,UINT* data,UINT size) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Set(type,(LPBYTE)data,size); }
146 CASNAny(in_addr& ip) : type(typeASNNull), storeType(storeStatic) { value.data.Clean();Set(ip); }
147 ~CASNAny() { Free(); }
148
149 BOOL Set(BYTE type) {
150 BOOL rv = Free();
151 CASNAny::type=type;
152 return rv;
153 }
154 BOOL Set(BYTE type,LONG number) {
155 BOOL rv = Free();
156 CASNAny::type=type;
157 value.number=number;
158 storeType=storeStatic;
159 return rv;
160 }
161 BOOL Set(BYTE type,LONGLONG number) {
162 BOOL rv = Free();
163 CASNAny::type=type;
164 value.number64.QuadPart = number;
165 storeType=storeStatic;
166 return rv;
167 }
168 BOOL Set(BYTE type,LPCTSTR string) {
169 BOOL rv = Free();
170 CASNAny::type=type;
171 rv=rv&&value.string.Set((LPBYTE)string,strlen(string)+1);
172 if(rv){
173 value.string.size--;
174 storeType=storeDynamic;
175 }
176 return rv;
177 }
178 BOOL Set(BYTE type,LPBYTE data,UINT length) {
179 BOOL rv = Free();
180 CASNAny::type=type;
181 rv=rv&&value.data.Set(data,length);
182 if(rv)
183 storeType=storeDynamic;
184 return rv;
185 }
186 BOOL Set(in_addr& ip) {
187 BOOL rv = Free();
188 memmove(&value.ip,&ip,sizeof(value.ip));
189 type=typeASNIP;
190 storeType=storeStatic;
191 return rv;
192 }
193 BOOL Free() {
194 if(storeType==storeDynamic)
195 value.data.Free();
196 else{
197 memset(&value,0,sizeof(value));
198 value.data.Clean();
199 }
200 storeType=storeStatic;
201 type=typeASNNull;
202 return TRUE;
203 }
204 BOOL Copy(CASNAny& src) {
205 BOOL rv = Free();
206 if(src.storeType==storeDynamic){
207 rv=rv&&value.data.Copy(src.value.data);
208 if(rv){
209 type=src.type;
210 storeType=src.storeType;
211 }
212 }else{
213 memmove(this,&src,sizeof(*this));
214 }
215 return rv;
216 }
217 CASNAny& operator=(CASNAny& src) {
218 VERIFY(Copy(src));
219 return *this;
220 }
221
222 // High Level
223 CString GetString() {
224 ASSERT(storeType==storeDynamic);
225 CString rv;
226 LPTSTR b = rv.GetBuffer(value.data.size+1);
227 ASSERT(b);
228 b[value.data.size]=0;
229 memmove(b,value.data.data,value.data.size);
230 rv.ReleaseBuffer();
231 return rv;
232 }
233};
234
235
236 class CSNMPVarBind{
237public:
238 CASNAny name;
239 CASNAny value;
240
241 CSNMPVarBind() {}
242 CSNMPVarBind(CASNAny& name,CASNAny& value) : name(name), value(value) {}
243 CSNMPVarBind(CASNAny& name) : name(name) {}
244 CSNMPVarBind(CSNMPVarBind& src) { Copy(src); }
245 BOOL Copy(CSNMPVarBind& src) {
246 name.Copy(src.name);
247 value.Copy(src.value);
248 return TRUE;
249 }
250 CSNMPVarBind& operator=(CSNMPVarBind& src) {
251 Copy(src);
252 return *this;
253 }
254 // High level
255 BOOL IsName(UINT* prefix,UINT prefixSize,BOOL bExact=FALSE) {
256 if(name.type!=CASNAny::typeASNOID)
257 return FALSE;
258 if(name.value.oid.size<prefixSize)
259 return FALSE;
260 if(bExact && (name.value.oid.size!=prefixSize))
261 return FALSE;
262 return !memcmp(prefix,name.value.oid.data,prefixSize);
263 }
264};
265
266 class CSNMPVarBindList: public CList<CSNMPVarBind,CSNMPVarBind&> {
267public:
268 CSNMPVarBind* GetVarBind(UINT* prefix,UINT prefixSize,BOOL bExact=FALSE) {
269 POSITION p = GetHeadPosition();
270 while(p){
271 CSNMPVarBind& vb = GetNext(p);
272 if(vb.IsName(prefix,prefixSize,bExact))
273 return &vb;
274 }
275 return NULL;
276 }
277};
278
279 class CSNMPeer{
280public:
281 virtual BOOL Request(BYTE type,CSNMPVarBindList& in,CSNMPVarBindList& ou) = 0;
282};
283
284};
285
286 #endif// __SNMPEER_H