1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
5 | // C99 required |
5 | // C99 required |
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6 | |
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7 | //#define BENCHMARK |
6 | |
8 | |
7 | #define ASN_BOOLEAN 0x01 |
9 | #define ASN_BOOLEAN 0x01 |
8 | #define ASN_INTEGER32 0x02 |
10 | #define ASN_INTEGER32 0x02 |
9 | #define ASN_OCTET_STRING 0x04 |
11 | #define ASN_OCTET_STRING 0x04 |
10 | #define ASN_NULL 0x05 |
12 | #define ASN_NULL 0x05 |
… | |
… | |
15 | #define ASN_UNSIGNED32 0x42 |
17 | #define ASN_UNSIGNED32 0x42 |
16 | #define ASN_TIMETICKS 0x43 |
18 | #define ASN_TIMETICKS 0x43 |
17 | #define ASN_OPAQUE 0x44 |
19 | #define ASN_OPAQUE 0x44 |
18 | #define ASN_COUNTER64 0x46 |
20 | #define ASN_COUNTER64 0x46 |
19 | |
21 | |
20 | #define BENCHMARK |
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21 | |
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22 | #define MAX_OID_STRLEN 4096 |
22 | #define MAX_OID_STRLEN 4096 |
23 | |
23 | |
24 | static SV *msg; |
24 | static SV *msg; |
25 | static int errflag, leading_dot; |
25 | static int errflag, leading_dot; |
26 | static U8 *buf, *cur; |
26 | static U8 *buf, *cur; |
… | |
… | |
38 | |
38 | |
39 | return (SV *)cv; |
39 | return (SV *)cv; |
40 | } |
40 | } |
41 | |
41 | |
42 | static void |
42 | static void |
43 | error (const char *msg) |
43 | error (const char *errmsg) |
44 | { |
44 | { |
45 | errflag = 1; |
45 | errflag = 1; |
46 | |
46 | |
47 | printf ("<<<%s>>>\n", msg);//D |
47 | dSP; |
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48 | PUSHMARK (SP); |
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49 | EXTEND (SP, 2); |
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50 | PUSHs (msg); |
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51 | PUSHs (sv_2mortal (newSVpv (errmsg, 0))); |
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52 | PUTBACK; |
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53 | call_method ("_error", G_VOID | G_DISCARD); |
48 | } |
54 | } |
49 | |
55 | |
50 | static int |
56 | static int |
51 | need (int count) |
57 | need (int count) |
52 | { |
58 | { |
… | |
… | |
183 | process_unsigned32_sv (void) |
189 | process_unsigned32_sv (void) |
184 | { |
190 | { |
185 | return newSVuv ((U32)process_integer32 ()); |
191 | return newSVuv ((U32)process_integer32 ()); |
186 | } |
192 | } |
187 | |
193 | |
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194 | #if IVSIZE >= 8 |
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195 | |
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196 | static U64TYPE |
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197 | process_integer64 (void) |
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198 | { |
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199 | U32 length = process_length (); |
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200 | |
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201 | if (length <= 0) |
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202 | { |
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203 | error ("INTEGER64 length equal to zero"); |
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204 | return 0; |
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205 | } |
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206 | |
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207 | U8 *data = getn (length, 0); |
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208 | |
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209 | if (!data) |
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210 | return 0; |
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211 | |
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212 | if (length > 9 || (length > 8 && data [0])) |
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213 | { |
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214 | error ("INTEGER64 length too long"); |
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215 | return 0; |
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216 | } |
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217 | |
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218 | U64TYPE res = data [0] & 0x80 ? 0xffffffffffffffff : 0; |
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219 | |
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220 | while (length--) |
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221 | res = (res << 8) | *data++; |
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222 | |
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223 | return res; |
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224 | } |
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225 | |
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226 | static SV * |
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227 | process_integer64_sv (void) |
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228 | { |
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229 | return newSViv ((I64TYPE)process_integer64 ()); |
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230 | } |
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231 | |
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232 | static SV * |
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233 | process_unsigned64_sv (void) |
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234 | { |
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235 | return newSVuv ((U64TYPE)process_integer64 ()); |
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236 | } |
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237 | |
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238 | #endif |
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239 | |
188 | static SV * |
240 | static SV * |
189 | process_octet_string_sv (void) |
241 | process_octet_string_sv (void) |
190 | { |
242 | { |
191 | U32 length = process_length (); |
243 | U32 length = process_length (); |
192 | |
244 | |
… | |
… | |
224 | } |
276 | } |
225 | |
277 | |
226 | U8 *end = cur + length; |
278 | U8 *end = cur + length; |
227 | U32 w = getb (); |
279 | U32 w = getb (); |
228 | |
280 | |
229 | static char oid[MAX_OID_STRLEN]; |
281 | static char oid[MAX_OID_STRLEN]; // must be static |
230 | char *app = oid; |
282 | char *app = oid; |
231 | |
283 | |
232 | *app = '.'; app += ! ! leading_dot; |
284 | *app = '.'; app += ! ! leading_dot; |
233 | app = write_uv (app, w / 40); |
285 | app = write_uv (app, (U8)w / 40); |
234 | *app++ = '.'; |
286 | *app++ = '.'; |
235 | app = write_uv (app, w % 40); |
287 | app = write_uv (app, (U8)w % 40); |
236 | |
288 | |
237 | // we assume an oid component is never > 64 bytes |
289 | // we assume an oid component is never > 64 bytes |
238 | while (cur < end && oid + sizeof (oid) - app > 64) |
290 | while (cur < end && oid + sizeof (oid) - app > 64) |
239 | { |
291 | { |
240 | w = getb (); |
292 | w = getb (); |
241 | *app++ = '.'; |
293 | *app++ = '.'; |
242 | app = write_uv (app, w); |
294 | app = write_uv (app, w); |
243 | } |
295 | } |
244 | #if 0 |
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245 | buf += snprintf (buf, oid + sizeof (oid) - buf, "%d.%d", (int)w / 40, (int)w % 40); |
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246 | |
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247 | while (cur < end) |
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248 | { |
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249 | w = getb (); |
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250 | buf += snprintf (buf, oid + sizeof (oid) - buf, ".%u", (unsigned int)w); |
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251 | } |
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252 | #endif |
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253 | |
296 | |
254 | return newSVpvn (oid, app - oid); |
297 | return newSVpvn (oid, app - oid); |
255 | } |
298 | } |
256 | |
299 | |
257 | static AV *av_type; |
300 | static AV *av_type; |
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301 | |
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302 | static SV * |
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303 | process_sv (int *found) |
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304 | { |
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305 | int type = get8 (); |
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306 | |
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307 | *found = type; |
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308 | |
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309 | SV *res; |
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310 | |
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311 | switch (type) |
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312 | { |
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313 | case ASN_OBJECT_IDENTIFIER: |
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314 | res = process_object_identifier_sv (); |
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315 | break; |
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316 | |
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317 | case ASN_INTEGER32: |
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318 | res = process_integer32_sv (); |
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319 | break; |
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320 | |
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321 | case ASN_UNSIGNED32: |
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322 | case ASN_COUNTER32: |
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323 | case ASN_TIMETICKS: |
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324 | res = process_unsigned32_sv (); |
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325 | break; |
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326 | |
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327 | case ASN_SEQUENCE: |
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328 | res = newSVuv (process_length ()); |
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329 | break; |
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330 | |
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331 | case ASN_OCTET_STRING: |
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332 | case ASN_OPAQUE: |
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333 | res = process_octet_string_sv (); |
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334 | break; |
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335 | |
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336 | default: |
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337 | { |
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338 | if (type > AvFILLp (av_type) || !SvTYPE (AvARRAY (av_type)[type]) == SVt_PVCV) |
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339 | { |
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340 | error ("Unknown ASN.1 type"); |
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341 | return &PL_sv_undef; |
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342 | } |
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343 | |
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344 | dSP; |
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345 | PUSHMARK (SP); |
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346 | EXTEND (SP, 2); |
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347 | PUSHs (msg); |
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348 | PUSHs (sv_2mortal (newSViv (type))); |
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349 | PUTBACK; |
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350 | int count = call_sv (AvARRAY (av_type)[type], G_SCALAR); |
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351 | SPAGAIN; |
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352 | res = count ? SvREFCNT_inc (TOPs) : &PL_sv_undef; |
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353 | } |
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354 | } |
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355 | |
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356 | return errflag ? &PL_sv_undef : res; |
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357 | } |
258 | |
358 | |
259 | MODULE = Net::SNMP::XS PACKAGE = Net::SNMP::XS |
359 | MODULE = Net::SNMP::XS PACKAGE = Net::SNMP::XS |
260 | |
360 | |
261 | PROTOTYPES: ENABLE |
361 | PROTOTYPES: ENABLE |
262 | |
362 | |
… | |
… | |
269 | av_store (av_type, type, SvREFCNT_inc (x_get_cv (cv))); |
369 | av_store (av_type, type, SvREFCNT_inc (x_get_cv (cv))); |
270 | |
370 | |
271 | void |
371 | void |
272 | set_msg (SV *msg_, SV *buf_) |
372 | set_msg (SV *msg_, SV *buf_) |
273 | CODE: |
373 | CODE: |
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374 | { |
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375 | if (msg) |
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376 | croak ("recursive invocation of Net::SNMP::XS parser is not supported"); |
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377 | |
274 | errflag = 0; |
378 | errflag = 0; |
275 | leading_dot = -1; |
379 | leading_dot = -1; |
276 | msg = SvREFCNT_inc (msg_); |
380 | msg = SvREFCNT_inc (msg_); |
277 | buf = SvPVbyte (buf_, len); |
381 | buf = SvPVbyte (buf_, len); |
278 | cur = buf; |
382 | cur = buf; |
279 | rem = len; |
383 | rem = len; |
280 | #ifdef BENCHMARK |
384 | #ifdef BENCHMARK |
281 | t1 = tstamp (); |
385 | t1 = tstamp (); |
282 | #endif |
386 | #endif |
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387 | } |
283 | |
388 | |
284 | void |
389 | void |
285 | clr_msg () |
390 | clr_msg () |
286 | CODE: |
391 | CODE: |
287 | SvREFCNT_dec (msg); |
392 | SvREFCNT_dec (msg); msg = 0; |
288 | buf = cur = ""; |
393 | buf = cur = (U8 *)""; |
289 | len = rem = 0; |
394 | len = rem = 0; |
290 | #ifdef BENCHMARK |
395 | #ifdef BENCHMARK |
291 | printf ("%f\n", tstamp () - t1);//D |
396 | printf ("%f\n", tstamp () - t1);//D |
292 | #endif |
397 | #endif |
293 | |
398 | |
… | |
… | |
353 | CODE: |
458 | CODE: |
354 | RETVAL = process_unsigned32_sv (); |
459 | RETVAL = process_unsigned32_sv (); |
355 | OUTPUT: |
460 | OUTPUT: |
356 | RETVAL |
461 | RETVAL |
357 | |
462 | |
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463 | #if IVSIZE >= 8 |
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464 | |
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465 | SV * |
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466 | _process_counter64 (SV *self, ...) |
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467 | CODE: |
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468 | RETVAL = process_unsigned64_sv (); |
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469 | OUTPUT: |
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470 | RETVAL |
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471 | |
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472 | #endif |
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473 | |
358 | SV * |
474 | SV * |
359 | _process_object_identifier (SV *self, ...) |
475 | _process_object_identifier (SV *self, ...) |
360 | CODE: |
476 | CODE: |
361 | RETVAL = process_object_identifier_sv (); |
477 | RETVAL = process_object_identifier_sv (); |
362 | OUTPUT: |
478 | OUTPUT: |
… | |
… | |
387 | } |
503 | } |
388 | OUTPUT: |
504 | OUTPUT: |
389 | RETVAL |
505 | RETVAL |
390 | |
506 | |
391 | SV * |
507 | SV * |
392 | process (SV *self, SV *expected = 0, SV *found = 0) |
508 | process (SV *self, SV *expected = &PL_sv_undef, SV *found = 0) |
393 | PPCODE: |
509 | CODE: |
394 | { |
510 | { |
395 | U8 type = get8 (); |
511 | int type; |
396 | |
512 | |
397 | if (expected && SvOK (expected) && type != SvIV (expected)) |
513 | RETVAL = process_sv (&type); |
398 | { |
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399 | error ("Expected a different type than found"); |
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400 | XSRETURN_UNDEF; |
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401 | } |
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402 | |
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403 | if (type > AvFILLp (av_type) || !SvTYPE (AvARRAY (av_type)[type]) == SVt_PVCV) |
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404 | { |
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405 | sv_dump (AvARRAY (av_type)[type]);//D |
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406 | error ("Unknown ASN.1 type"); |
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407 | XSRETURN_UNDEF; |
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408 | } |
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409 | |
514 | |
410 | if (found) |
515 | if (found) |
411 | sv_setiv (found, type); |
516 | sv_setiv (found, type); |
412 | |
517 | |
413 | //TODO: switch based on type, to avoid calling overhead |
518 | if (SvOK (expected) && type != SvIV (expected)) |
414 | SV *res; |
519 | error ("Expected a different type than found"); |
415 | |
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416 | switch (type) |
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417 | { |
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418 | case ASN_OBJECT_IDENTIFIER: |
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419 | res = sv_2mortal (process_object_identifier_sv ()); |
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420 | break; |
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421 | |
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422 | case ASN_INTEGER32: |
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423 | res = sv_2mortal (process_integer32_sv ()); |
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424 | break; |
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425 | |
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426 | case ASN_UNSIGNED32: |
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427 | case ASN_COUNTER32: |
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428 | case ASN_TIMETICKS: |
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429 | res = sv_2mortal (process_unsigned32_sv ()); |
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430 | break; |
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431 | |
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432 | case ASN_SEQUENCE: |
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433 | res = sv_2mortal (newSVuv (process_length ())); |
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434 | break; |
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435 | |
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436 | case ASN_OCTET_STRING: |
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437 | case ASN_OPAQUE: |
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438 | res = sv_2mortal (process_octet_string_sv ()); |
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439 | break; |
|
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440 | |
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441 | default: |
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442 | { |
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443 | dSP; |
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444 | PUSHMARK (SP); |
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445 | EXTEND (SP, 2); |
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446 | PUSHs (self); |
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447 | PUSHs (expected); |
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448 | PUTBACK; |
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449 | int count = call_sv (AvARRAY (av_type)[type], G_SCALAR); |
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450 | SPAGAIN; |
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451 | res = count ? TOPs : &PL_sv_undef; |
|
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452 | } |
|
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453 | } |
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454 | |
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455 | XPUSHs (errflag ? &PL_sv_undef : res); |
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456 | } |
520 | } |
457 | |
521 | OUTPUT: |
458 | #if 0 |
522 | RETVAL |
459 | |
523 | |
460 | MODULE = Net::SNMP::XS PACKAGE = Net::SNMP::PDU |
524 | MODULE = Net::SNMP::XS PACKAGE = Net::SNMP::PDU |
461 | |
525 | |
462 | SV * |
526 | SV * |
463 | _process_var_bind_list (SV *self) |
527 | _process_var_bind_list (SV *self) |
464 | CODE: |
528 | CODE: |
465 | { |
529 | { |
466 | # VarBindList::=SEQUENCE |
530 | if (get8 () != ASN_SEQUENCE) |
467 | if (!defined($value = $this->process(SEQUENCE))) { |
531 | error ("SEQUENCE expected at beginning of VarBindList"); |
468 | return $this->_error; |
532 | int seqlen = process_length (); |
469 | } |
533 | U8 *end = cur + seqlen; |
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534 | |
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535 | HV *list = newHV (); |
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536 | AV *names = newAV (); |
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537 | HV *types = newHV (); |
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538 | |
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539 | hv_store ((HV *)SvRV (self), "_var_bind_list" , sizeof ("_var_bind_list" ) - 1, newRV_noinc ((SV *)list ), 0); |
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540 | hv_store ((HV *)SvRV (self), "_var_bind_names", sizeof ("_var_bind_names") - 1, newRV_noinc ((SV *)names), 0); |
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541 | hv_store ((HV *)SvRV (self), "_var_bind_types", sizeof ("_var_bind_types") - 1, newRV_noinc ((SV *)types), 0); |
470 | |
542 | |
471 | # Using the length of the VarBindList SEQUENCE, |
543 | while (cur < end && !errflag) |
472 | # calculate the end index. |
544 | { |
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545 | // SEQUENCE ObjectName ObjectSyntax |
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546 | if (get8 () != ASN_SEQUENCE) |
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547 | error ("SEQUENCE expected at beginning of VarBind"); |
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548 | process_length (); |
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549 | |
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550 | if (get8 () != ASN_OBJECT_IDENTIFIER) |
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551 | error ("OBJECT IDENTIFIER expected at beginning of VarBind"); |
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552 | int type, oidlen; |
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553 | SV *oid = process_object_identifier_sv (); |
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554 | SV *val = process_sv (&type); |
473 | |
555 | |
474 | my $end = $this->index + $value; |
556 | hv_store_ent (types, oid, newSViv (type), 0); |
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557 | hv_store_ent (list , oid, val, 0); |
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558 | av_push (names, oid); |
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559 | } |
475 | |
560 | |
476 | $this->{_var_bind_list} = {}; |
561 | //return $this->_report_pdu_error if ($this->{_pdu_type} == REPORT); |
477 | $this->{_var_bind_names} = []; |
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478 | $this->{_var_bind_types} = {}; |
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479 | |
562 | |
480 | my ($oid, $type); |
563 | RETVAL = newRV_inc ((SV *)list); |
481 | |
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482 | while ($this->index < $end) { |
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483 | |
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484 | # VarBind::=SEQUENCE |
|
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485 | if (!defined($this->process(SEQUENCE))) { |
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486 | return $this->_error; |
|
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487 | } |
|
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488 | # name::=ObjectName |
|
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489 | if (!defined($oid = $this->process(OBJECT_IDENTIFIER))) { |
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490 | return $this->_error; |
|
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491 | } |
|
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492 | # value::=ObjectSyntax |
|
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493 | if (!defined($value = $this->process(undef, $type))) { |
|
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494 | return $this->_error; |
|
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495 | } |
|
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496 | |
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497 | # Create a hash consisting of the OBJECT IDENTIFIER as a |
|
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498 | # key and the ObjectSyntax as the value. If there is a |
|
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499 | # duplicate OBJECT IDENTIFIER in the VarBindList, we pad |
|
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500 | # that OBJECT IDENTIFIER with spaces to make a unique |
|
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501 | # key in the hash. |
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502 | |
|
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503 | while (exists($this->{_var_bind_list}->{$oid})) { |
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504 | $oid .= ' '; # Pad with spaces |
|
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505 | } |
|
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506 | |
|
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507 | DEBUG_INFO('{ %s => %s: %s }', $oid, asn1_itoa($type), $value); |
|
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508 | $this->{_var_bind_list}->{$oid} = $value; |
|
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509 | $this->{_var_bind_types}->{$oid} = $type; |
|
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510 | |
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511 | # Create an array with the ObjectName OBJECT IDENTIFIERs |
|
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512 | # so that the order in which the VarBinds where encoded |
|
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513 | # in the PDU can be retrieved later. |
|
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514 | |
|
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515 | push(@{$this->{_var_bind_names}}, $oid); |
|
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516 | |
|
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517 | } |
|
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518 | |
|
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519 | # Return an error based on the contents of the VarBindList |
|
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520 | # if we received a Report-PDU. |
|
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521 | |
|
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522 | return $this->_report_pdu_error if ($this->{_pdu_type} == REPORT); |
|
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523 | |
|
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524 | # Return the var_bind_list hash |
|
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525 | $this->{_var_bind_list}; |
|
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526 | } |
564 | } |
|
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565 | OUTPUT: |
|
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566 | RETVAL |
527 | |
567 | |
528 | #endif |
|
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529 | |
568 | |