| … | |
… | |
| 2 | #include "perl.h" |
2 | #include "perl.h" |
| 3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
| 4 | |
4 | |
| 5 | // C99 required |
5 | // C99 required |
| 6 | |
6 | |
| 7 | #define ASN_BOOLEAN 0x01 |
7 | #define ASN_BOOLEAN 0x01 |
| 8 | #define ASN_INTEGER 0x02 |
8 | #define ASN_INTEGER32 0x02 |
| 9 | #define ASN_BIT_STR 0x03 |
|
|
| 10 | #define ASN_OCTET_STR 0x04 |
9 | #define ASN_OCTET_STRING 0x04 |
| 11 | #define ASN_NULL 0x05 |
10 | #define ASN_NULL 0x05 |
| 12 | #define ASN_OBJECT_ID 0x06 |
11 | #define ASN_OBJECT_IDENTIFIER 0x06 |
| 13 | #define ASN_SEQUENCE 0x10 |
12 | #define ASN_SEQUENCE 0x30 |
| 14 | #define ASN_SET 0x11 |
|
|
| 15 | |
|
|
| 16 | #define ASN_UNIVERSAL 0x00 |
13 | #define ASN_IPADDRESS 0x40 |
| 17 | #define ASN_APPLICATION 0x40 |
|
|
| 18 | #define ASN_CONTEXT 0x80 |
14 | #define ASN_COUNTER32 0x41 |
|
|
15 | #define ASN_UNSIGNED32 0x42 |
|
|
16 | #define ASN_TIMETICKS 0x43 |
| 19 | #define ASN_PRIVATE 0xc0 |
17 | #define ASN_OPAQUE 0x44 |
| 20 | |
|
|
| 21 | #define ASN_PRIMITIVE 0x00 |
|
|
| 22 | #define ASN_CONSTRUCTOR 0x20 |
|
|
| 23 | |
|
|
| 24 | #define ASN_LONG_LEN 0x80 |
18 | #define ASN_COUNTER64 0x46 |
| 25 | #define ASN_EXTENSION_ID 0x1f |
|
|
| 26 | #define ASN_BIT8 0x80 |
|
|
| 27 | |
19 | |
| 28 | //#define BENCHMARK |
20 | #define BENCHMARK |
|
|
21 | |
|
|
22 | #define MAX_OID_STRLEN 4096 |
| 29 | |
23 | |
| 30 | static SV *msg; |
24 | static SV *msg; |
| 31 | static int errflag; |
25 | static int errflag, leading_dot; |
| 32 | static U8 *buf, *cur; |
26 | static U8 *buf, *cur; |
| 33 | static STRLEN len, rem; |
27 | static STRLEN len, rem; |
|
|
28 | |
|
|
29 | static SV * |
|
|
30 | x_get_cv (SV *cb_sv) |
|
|
31 | { |
|
|
32 | HV *st; |
|
|
33 | GV *gvp; |
|
|
34 | CV *cv = sv_2cv (cb_sv, &st, &gvp, 0); |
|
|
35 | |
|
|
36 | if (!cv) |
|
|
37 | croak ("CODE reference expected"); |
|
|
38 | |
|
|
39 | return (SV *)cv; |
|
|
40 | } |
| 34 | |
41 | |
| 35 | static void |
42 | static void |
| 36 | error (const char *msg) |
43 | error (const char *msg) |
| 37 | { |
44 | { |
| 38 | errflag = 1; |
45 | errflag = 1; |
| … | |
… | |
| 134 | } |
141 | } |
| 135 | |
142 | |
| 136 | return res; |
143 | return res; |
| 137 | } |
144 | } |
| 138 | |
145 | |
|
|
146 | static U32 |
|
|
147 | process_integer32 (void) |
|
|
148 | { |
|
|
149 | U32 length = process_length (); |
|
|
150 | |
|
|
151 | if (length <= 0) |
|
|
152 | { |
|
|
153 | error ("INTEGER32 length equal to zero"); |
|
|
154 | return 0; |
|
|
155 | } |
|
|
156 | |
|
|
157 | U8 *data = getn (length, 0); |
|
|
158 | |
|
|
159 | if (!data) |
|
|
160 | return 0; |
|
|
161 | |
|
|
162 | if (length > 5 || (length > 4 && data [0])) |
|
|
163 | { |
|
|
164 | error ("INTEGER32 length too long"); |
|
|
165 | return 0; |
|
|
166 | } |
|
|
167 | |
|
|
168 | U32 res = data [0] & 0x80 ? 0xffffffff : 0; |
|
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169 | |
|
|
170 | while (length--) |
|
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171 | res = (res << 8) | *data++; |
|
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172 | |
|
|
173 | return res; |
|
|
174 | } |
|
|
175 | |
|
|
176 | static SV * |
|
|
177 | process_integer32_sv (void) |
|
|
178 | { |
|
|
179 | return newSViv ((I32)process_integer32 ()); |
|
|
180 | } |
|
|
181 | |
|
|
182 | static SV * |
|
|
183 | process_unsigned32_sv (void) |
|
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184 | { |
|
|
185 | return newSVuv ((U32)process_integer32 ()); |
|
|
186 | } |
|
|
187 | |
|
|
188 | static SV * |
|
|
189 | process_octet_string_sv (void) |
|
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190 | { |
|
|
191 | U32 length = process_length (); |
|
|
192 | |
|
|
193 | U8 *data = getn (length, 0); |
|
|
194 | if (!data) |
|
|
195 | { |
|
|
196 | error ("OCTET STRING too long"); |
|
|
197 | return &PL_sv_undef; |
|
|
198 | } |
|
|
199 | |
|
|
200 | return newSVpvn (data, length); |
|
|
201 | } |
|
|
202 | |
|
|
203 | static char * |
|
|
204 | write_uv (char *buf, U32 u) |
|
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205 | { |
|
|
206 | // the one-digit case is absolutely predominant |
|
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207 | if (u < 10) |
|
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208 | *buf++ = u + '0'; |
|
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209 | else |
|
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210 | buf += sprintf (buf, "%u", (unsigned int)u); |
|
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211 | |
|
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212 | return buf; |
|
|
213 | } |
|
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214 | |
|
|
215 | static SV * |
|
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216 | process_object_identifier_sv (void) |
|
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217 | { |
|
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218 | U32 length = process_length (); |
|
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219 | |
|
|
220 | if (length <= 0) |
|
|
221 | { |
|
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222 | error ("OBJECT IDENTIFIER length equal to zero"); |
|
|
223 | return &PL_sv_undef; |
|
|
224 | } |
|
|
225 | |
|
|
226 | U8 *end = cur + length; |
|
|
227 | U32 w = getb (); |
|
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228 | |
|
|
229 | static char oid[MAX_OID_STRLEN]; |
|
|
230 | char *app = oid; |
|
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231 | |
|
|
232 | *app = '.'; app += ! ! leading_dot; |
|
|
233 | app = write_uv (app, w / 40); |
|
|
234 | *app++ = '.'; |
|
|
235 | app = write_uv (app, w % 40); |
|
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236 | |
|
|
237 | // we assume an oid component is never > 64 bytes |
|
|
238 | while (cur < end && oid + sizeof (oid) - app > 64) |
|
|
239 | { |
|
|
240 | w = getb (); |
|
|
241 | *app++ = '.'; |
|
|
242 | app = write_uv (app, w); |
|
|
243 | } |
|
|
244 | #if 0 |
|
|
245 | buf += snprintf (buf, oid + sizeof (oid) - buf, "%d.%d", (int)w / 40, (int)w % 40); |
|
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246 | |
|
|
247 | while (cur < end) |
|
|
248 | { |
|
|
249 | w = getb (); |
|
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250 | buf += snprintf (buf, oid + sizeof (oid) - buf, ".%u", (unsigned int)w); |
|
|
251 | } |
|
|
252 | #endif |
|
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253 | |
|
|
254 | return newSVpvn (oid, app - oid); |
|
|
255 | } |
|
|
256 | |
|
|
257 | static AV *av_type; |
|
|
258 | |
| 139 | MODULE = Net::SNMP::XS PACKAGE = Net::SNMP::XS |
259 | MODULE = Net::SNMP::XS PACKAGE = Net::SNMP::XS |
|
|
260 | |
|
|
261 | PROTOTYPES: ENABLE |
|
|
262 | |
|
|
263 | BOOT: |
|
|
264 | av_type = newAV (); |
|
|
265 | |
|
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266 | void |
|
|
267 | set_type (int type, SV *cv) |
|
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268 | CODE: |
|
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269 | av_store (av_type, type, SvREFCNT_inc (x_get_cv (cv))); |
| 140 | |
270 | |
| 141 | void |
271 | void |
| 142 | set_msg (SV *msg_, SV *buf_) |
272 | set_msg (SV *msg_, SV *buf_) |
| 143 | CODE: |
273 | CODE: |
| 144 | errflag = 0; |
274 | errflag = 0; |
|
|
275 | leading_dot = -1; |
| 145 | msg = SvREFCNT_inc (msg_); |
276 | msg = SvREFCNT_inc (msg_); |
| 146 | buf = SvPVbyte (buf_, len); |
277 | buf = SvPVbyte (buf_, len); |
| 147 | cur = buf; |
278 | cur = buf; |
| 148 | rem = len; |
279 | rem = len; |
| 149 | #ifdef BENCHMARK |
280 | #ifdef BENCHMARK |
| 150 | t1 = tstamp (); |
281 | t1 = tstamp (); |
| 151 | #endif |
282 | #endif |
| 152 | |
283 | |
| 153 | void |
284 | void |
| 154 | clr_msg () |
285 | clr_msg () |
| 155 | CODE: |
286 | CODE: |
| … | |
… | |
| 199 | RETVAL |
330 | RETVAL |
| 200 | |
331 | |
| 201 | U32 |
332 | U32 |
| 202 | _process_length (SV *self, ...) |
333 | _process_length (SV *self, ...) |
| 203 | ALIAS: |
334 | ALIAS: |
| 204 | _process_sequence = 1 |
335 | _process_sequence = 0 |
| 205 | CODE: |
336 | CODE: |
| 206 | RETVAL = process_length (); |
337 | RETVAL = process_length (); |
| 207 | OUTPUT: |
338 | OUTPUT: |
| 208 | RETVAL |
339 | RETVAL |
| 209 | |
340 | |
| 210 | I32 |
341 | SV * |
| 211 | _process_integer32 (SV *self, ...) |
342 | _process_integer32 (SV *self, ...) |
|
|
343 | CODE: |
|
|
344 | RETVAL = process_integer32_sv (); |
|
|
345 | OUTPUT: |
|
|
346 | RETVAL |
|
|
347 | |
|
|
348 | SV * |
|
|
349 | _process_counter (SV *self, ...) |
| 212 | ALIAS: |
350 | ALIAS: |
| 213 | _process_counter = 0 |
|
|
| 214 | _process_gauge = 0 |
351 | _process_gauge = 0 |
|
|
352 | _process_timeticks = 0 |
| 215 | CODE: |
353 | CODE: |
| 216 | { |
354 | RETVAL = process_unsigned32_sv (); |
| 217 | U32 length = process_length (); |
|
|
| 218 | |
|
|
| 219 | if (length <= 0) |
|
|
| 220 | { |
|
|
| 221 | error ("INTEGER32 length equal to zero"); |
|
|
| 222 | XSRETURN_UNDEF; |
|
|
| 223 | } |
|
|
| 224 | |
|
|
| 225 | U8 *data = getn (length, 0); |
|
|
| 226 | |
|
|
| 227 | if (!data) |
|
|
| 228 | XSRETURN_UNDEF; |
|
|
| 229 | |
|
|
| 230 | if (length > 5 || (length > 4 && data [0])) |
|
|
| 231 | { |
|
|
| 232 | error ("INTEGER32 length too long"); |
|
|
| 233 | XSRETURN_UNDEF; |
|
|
| 234 | } |
|
|
| 235 | |
|
|
| 236 | U32 res = data [0] & 0x80 ? 0xffffffff : 0; |
|
|
| 237 | |
|
|
| 238 | while (length--) |
|
|
| 239 | res = (res << 8) | *data++; |
|
|
| 240 | |
|
|
| 241 | RETVAL = res; |
|
|
| 242 | } |
|
|
| 243 | OUTPUT: |
355 | OUTPUT: |
| 244 | RETVAL |
356 | RETVAL |
| 245 | |
357 | |
| 246 | SV * |
358 | SV * |
| 247 | _process_object_identifier (SV *self, ...) |
359 | _process_object_identifier (SV *self, ...) |
| 248 | CODE: |
360 | CODE: |
| 249 | { |
361 | RETVAL = process_object_identifier_sv (); |
| 250 | U32 length = process_length (); |
|
|
| 251 | |
|
|
| 252 | if (length <= 0) |
|
|
| 253 | { |
|
|
| 254 | error ("OBJECT IDENTIFIER length equal to zero"); |
|
|
| 255 | XSRETURN_UNDEF; |
|
|
| 256 | } |
|
|
| 257 | |
|
|
| 258 | U8 *end = cur + length; |
|
|
| 259 | U32 w = getb (); |
|
|
| 260 | |
|
|
| 261 | //TODO: leading_dots |
|
|
| 262 | |
|
|
| 263 | RETVAL = newSVpvf (".%d.%d", (int)w / 40, (int)w % 40); |
|
|
| 264 | |
|
|
| 265 | while (cur < end) |
|
|
| 266 | { |
|
|
| 267 | w = getb (); |
|
|
| 268 | sv_catpvf (RETVAL, ".%u", (unsigned int)w); |
|
|
| 269 | } |
|
|
| 270 | } |
|
|
| 271 | OUTPUT: |
362 | OUTPUT: |
| 272 | RETVAL |
363 | RETVAL |
| 273 | |
364 | |
| 274 | SV * |
365 | SV * |
| 275 | _process_octet_string (SV *self, ...) |
366 | _process_octet_string (SV *self, ...) |
| 276 | ALIAS: |
367 | ALIAS: |
| 277 | _process_opaque = 0 |
368 | _process_opaque = 0 |
| 278 | CODE: |
369 | CODE: |
| 279 | { |
370 | RETVAL = process_octet_string_sv (); |
| 280 | U32 length = process_length (); |
|
|
| 281 | |
|
|
| 282 | U8 *data = getn (length, 0); |
|
|
| 283 | if (!data) |
|
|
| 284 | { |
|
|
| 285 | error ("OCTET STRING too long"); |
|
|
| 286 | XSRETURN_UNDEF; |
|
|
| 287 | } |
|
|
| 288 | |
|
|
| 289 | RETVAL = newSVpvn (data, length); |
|
|
| 290 | } |
|
|
| 291 | OUTPUT: |
371 | OUTPUT: |
| 292 | RETVAL |
372 | RETVAL |
| 293 | |
373 | |
| 294 | SV * |
374 | SV * |
| 295 | _process_ipaddress (SV *self, ...) |
375 | _process_ipaddress (SV *self, ...) |
| … | |
… | |
| 306 | RETVAL = newSVpvf ("%d.%d.%d.%d", data [0], data [1], data [2], data [3]); |
386 | RETVAL = newSVpvf ("%d.%d.%d.%d", data [0], data [1], data [2], data [3]); |
| 307 | } |
387 | } |
| 308 | OUTPUT: |
388 | OUTPUT: |
| 309 | RETVAL |
389 | RETVAL |
| 310 | |
390 | |
|
|
391 | SV * |
|
|
392 | process (SV *self, SV *expected = 0, SV *found = 0) |
|
|
393 | PPCODE: |
|
|
394 | { |
|
|
395 | U8 type = get8 (); |
|
|
396 | |
|
|
397 | if (expected && SvOK (expected) && type != SvIV (expected)) |
|
|
398 | { |
|
|
399 | error ("Expected a different type than found"); |
|
|
400 | XSRETURN_UNDEF; |
|
|
401 | } |
|
|
402 | |
|
|
403 | if (type > AvFILLp (av_type) || !SvTYPE (AvARRAY (av_type)[type]) == SVt_PVCV) |
|
|
404 | { |
|
|
405 | sv_dump (AvARRAY (av_type)[type]);//D |
|
|
406 | error ("Unknown ASN.1 type"); |
|
|
407 | XSRETURN_UNDEF; |
|
|
408 | } |
|
|
409 | |
|
|
410 | if (found) |
|
|
411 | sv_setiv (found, type); |
|
|
412 | |
|
|
413 | //TODO: switch based on type, to avoid calling overhead |
|
|
414 | SV *res; |
|
|
415 | |
|
|
416 | switch (type) |
|
|
417 | { |
|
|
418 | case ASN_OBJECT_IDENTIFIER: |
|
|
419 | res = sv_2mortal (process_object_identifier_sv ()); |
|
|
420 | break; |
|
|
421 | |
|
|
422 | case ASN_INTEGER32: |
|
|
423 | res = sv_2mortal (process_integer32_sv ()); |
|
|
424 | break; |
|
|
425 | |
|
|
426 | case ASN_UNSIGNED32: |
|
|
427 | case ASN_COUNTER32: |
|
|
428 | case ASN_TIMETICKS: |
|
|
429 | res = sv_2mortal (process_unsigned32_sv ()); |
|
|
430 | break; |
|
|
431 | |
|
|
432 | case ASN_SEQUENCE: |
|
|
433 | res = sv_2mortal (newSVuv (process_length ())); |
|
|
434 | break; |
|
|
435 | |
|
|
436 | case ASN_OCTET_STRING: |
|
|
437 | case ASN_OPAQUE: |
|
|
438 | res = sv_2mortal (process_octet_string_sv ()); |
|
|
439 | break; |
|
|
440 | |
|
|
441 | default: |
|
|
442 | { |
|
|
443 | dSP; |
|
|
444 | PUSHMARK (SP); |
|
|
445 | EXTEND (SP, 2); |
|
|
446 | PUSHs (self); |
|
|
447 | PUSHs (expected); |
|
|
448 | PUTBACK; |
|
|
449 | int count = call_sv (AvARRAY (av_type)[type], G_SCALAR); |
|
|
450 | SPAGAIN; |
|
|
451 | res = count ? TOPs : &PL_sv_undef; |
|
|
452 | } |
|
|
453 | } |
|
|
454 | |
|
|
455 | XPUSHs (errflag ? &PL_sv_undef : res); |
|
|
456 | } |
|
|
457 | |
|
|
458 | #if 0 |
|
|
459 | |
|
|
460 | MODULE = Net::SNMP::XS PACKAGE = Net::SNMP::PDU |
|
|
461 | |
|
|
462 | SV * |
|
|
463 | _process_var_bind_list (SV *self) |
|
|
464 | CODE: |
|
|
465 | { |
|
|
466 | # VarBindList::=SEQUENCE |
|
|
467 | if (!defined($value = $this->process(SEQUENCE))) { |
|
|
468 | return $this->_error; |
|
|
469 | } |
|
|
470 | |
|
|
471 | # Using the length of the VarBindList SEQUENCE, |
|
|
472 | # calculate the end index. |
|
|
473 | |
|
|
474 | my $end = $this->index + $value; |
|
|
475 | |
|
|
476 | $this->{_var_bind_list} = {}; |
|
|
477 | $this->{_var_bind_names} = []; |
|
|
478 | $this->{_var_bind_types} = {}; |
|
|
479 | |
|
|
480 | my ($oid, $type); |
|
|
481 | |
|
|
482 | while ($this->index < $end) { |
|
|
483 | |
|
|
484 | # VarBind::=SEQUENCE |
|
|
485 | if (!defined($this->process(SEQUENCE))) { |
|
|
486 | return $this->_error; |
|
|
487 | } |
|
|
488 | # name::=ObjectName |
|
|
489 | if (!defined($oid = $this->process(OBJECT_IDENTIFIER))) { |
|
|
490 | return $this->_error; |
|
|
491 | } |
|
|
492 | # value::=ObjectSyntax |
|
|
493 | if (!defined($value = $this->process(undef, $type))) { |
|
|
494 | return $this->_error; |
|
|
495 | } |
|
|
496 | |
|
|
497 | # Create a hash consisting of the OBJECT IDENTIFIER as a |
|
|
498 | # key and the ObjectSyntax as the value. If there is a |
|
|
499 | # duplicate OBJECT IDENTIFIER in the VarBindList, we pad |
|
|
500 | # that OBJECT IDENTIFIER with spaces to make a unique |
|
|
501 | # key in the hash. |
|
|
502 | |
|
|
503 | while (exists($this->{_var_bind_list}->{$oid})) { |
|
|
504 | $oid .= ' '; # Pad with spaces |
|
|
505 | } |
|
|
506 | |
|
|
507 | DEBUG_INFO('{ %s => %s: %s }', $oid, asn1_itoa($type), $value); |
|
|
508 | $this->{_var_bind_list}->{$oid} = $value; |
|
|
509 | $this->{_var_bind_types}->{$oid} = $type; |
|
|
510 | |
|
|
511 | # Create an array with the ObjectName OBJECT IDENTIFIERs |
|
|
512 | # so that the order in which the VarBinds where encoded |
|
|
513 | # in the PDU can be retrieved later. |
|
|
514 | |
|
|
515 | push(@{$this->{_var_bind_names}}, $oid); |
|
|
516 | |
|
|
517 | } |
|
|
518 | |
|
|
519 | # Return an error based on the contents of the VarBindList |
|
|
520 | # if we received a Report-PDU. |
|
|
521 | |
|
|
522 | return $this->_report_pdu_error if ($this->{_pdu_type} == REPORT); |
|
|
523 | |
|
|
524 | # Return the var_bind_list hash |
|
|
525 | $this->{_var_bind_list}; |
|
|
526 | } |
|
|
527 | |
|
|
528 | #endif |
|
|
529 | |
