| 1 |
#include "EXTERN.h" |
| 2 |
#include "perl.h" |
| 3 |
#include "XSUB.h" |
| 4 |
|
| 5 |
// C99 required |
| 6 |
|
| 7 |
//#define BENCHMARK |
| 8 |
|
| 9 |
enum { |
| 10 |
// ASN_TAG |
| 11 |
ASN_BOOLEAN = 0x01, |
| 12 |
ASN_INTEGER32 = 0x02, |
| 13 |
ASN_BIT_STRING = 0x03, |
| 14 |
ASN_OCTET_STRING = 0x04, |
| 15 |
ASN_NULL = 0x05, |
| 16 |
ASN_OBJECT_IDENTIFIER = 0x06, |
| 17 |
ASN_SEQUENCE = 0x10, |
| 18 |
|
| 19 |
ASN_TAG_BER = 0x1f, |
| 20 |
ASN_TAG_MASK = 0x1f, |
| 21 |
|
| 22 |
// primitive/constructed |
| 23 |
ASN_CONSTRUCTED = 0x20, |
| 24 |
|
| 25 |
// ASN_CLASS |
| 26 |
ASN_UNIVERSAL = 0x00, |
| 27 |
ASN_APPLICATION = 0x40, |
| 28 |
ASN_CONTEXT = 0x80, |
| 29 |
ASN_PRIVATE = 0xc0, |
| 30 |
|
| 31 |
ASN_CLASS_MASK = 0xc0, |
| 32 |
ASN_CLASS_SHIFT = 6, |
| 33 |
|
| 34 |
// ASN_APPLICATION |
| 35 |
ASN_IPADDRESS = 0x00, |
| 36 |
ASN_COUNTER32 = 0x01, |
| 37 |
ASN_UNSIGNED32 = 0x02, |
| 38 |
ASN_TIMETICKS = 0x03, |
| 39 |
ASN_OPAQUE = 0x04, |
| 40 |
ASN_COUNTER64 = 0x06, |
| 41 |
}; |
| 42 |
|
| 43 |
enum { |
| 44 |
BER_CLASS = 0, |
| 45 |
BER_TAG = 1, |
| 46 |
BER_CONSTRUCTED = 2, |
| 47 |
BER_DATA = 3, |
| 48 |
BER_ARRAYSIZE |
| 49 |
}; |
| 50 |
|
| 51 |
#define MAX_OID_STRLEN 4096 |
| 52 |
|
| 53 |
#define HAVE_VERSIONSORT defined (_GNU_SOURCE) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1 |
| 54 |
|
| 55 |
static SV *cur_bufobj; |
| 56 |
static SV *msg, *bufsv; |
| 57 |
static int errflag, leading_dot; |
| 58 |
static U8 *buf, *cur; |
| 59 |
static STRLEN len, rem; |
| 60 |
|
| 61 |
typedef SV *BUFOBJ; |
| 62 |
|
| 63 |
// for "small" integers, return a readonly sv, otherwise create a new one |
| 64 |
static SV *newSVcacheint (int val) |
| 65 |
{ |
| 66 |
static SV *cache[32]; |
| 67 |
|
| 68 |
if (val < 0 || val >= sizeof (cache)) |
| 69 |
return newSViv (val); |
| 70 |
|
| 71 |
if (!cache [val]) |
| 72 |
{ |
| 73 |
cache [val] = newSVuv (val); |
| 74 |
SvREADONLY_on (cache [val]); |
| 75 |
} |
| 76 |
|
| 77 |
return SvREFCNT_inc_NN (cache [val]); |
| 78 |
} |
| 79 |
|
| 80 |
///////////////////////////////////////////////////////////////////////////// |
| 81 |
|
| 82 |
#if 0 |
| 83 |
if (msg) |
| 84 |
croak ("recursive invocation of Net::SNMP::XS parser is not supported"); |
| 85 |
|
| 86 |
|
| 87 |
void |
| 88 |
clr_msg () |
| 89 |
CODE: |
| 90 |
SvREFCNT_dec (msg); msg = 0; |
| 91 |
buf = cur = (U8 *)""; |
| 92 |
len = rem = 0; |
| 93 |
#endif |
| 94 |
|
| 95 |
static void |
| 96 |
clear_bufobj (void) |
| 97 |
{ |
| 98 |
// serialise our state back |
| 99 |
if (msg && SvROK (msg)) |
| 100 |
{ |
| 101 |
SV *idx_sv = *hv_fetch ((HV *)cur_bufobj, "_index" , sizeof ("_index" ) - 1, 1); |
| 102 |
sv_setiv (idx_sv, cur - buf); |
| 103 |
} |
| 104 |
|
| 105 |
SvREFCNT_dec (msg); |
| 106 |
msg = 0; |
| 107 |
cur_bufobj = 0; |
| 108 |
} |
| 109 |
|
| 110 |
static void |
| 111 |
switch_bufobj (BUFOBJ neu) |
| 112 |
{ |
| 113 |
clear_bufobj (); |
| 114 |
|
| 115 |
msg = newSVsv (neu); |
| 116 |
cur_bufobj = SvRV (msg); |
| 117 |
sv_rvweaken (msg); |
| 118 |
|
| 119 |
errflag = 0; |
| 120 |
leading_dot = -1; |
| 121 |
|
| 122 |
IV index = SvIV (*hv_fetch ((HV *)cur_bufobj, "_index" , sizeof ("_index" ) - 1, 1)); |
| 123 |
bufsv = *hv_fetch ((HV *)cur_bufobj, "_buffer", sizeof ("_buffer") - 1, 1); |
| 124 |
|
| 125 |
buf = SvPVbyte (bufsv, len); |
| 126 |
cur = buf + index; |
| 127 |
rem = len - index; |
| 128 |
} |
| 129 |
|
| 130 |
///////////////////////////////////////////////////////////////////////////// |
| 131 |
|
| 132 |
static SV * |
| 133 |
x_get_cv (SV *cb_sv) |
| 134 |
{ |
| 135 |
HV *st; |
| 136 |
GV *gvp; |
| 137 |
CV *cv = sv_2cv (cb_sv, &st, &gvp, 0); |
| 138 |
|
| 139 |
if (!cv) |
| 140 |
croak ("CODE reference expected"); |
| 141 |
|
| 142 |
return (SV *)cv; |
| 143 |
} |
| 144 |
|
| 145 |
static void |
| 146 |
error (const char *errmsg) |
| 147 |
{ |
| 148 |
errflag = 1; |
| 149 |
|
| 150 |
if (!msg) |
| 151 |
croak ("Net::SNMP::XS fatal error, parser called without parsing context"); |
| 152 |
|
| 153 |
dSP; |
| 154 |
PUSHMARK (SP); |
| 155 |
EXTEND (SP, 2); |
| 156 |
PUSHs (msg); |
| 157 |
PUSHs (sv_2mortal (newSVpv (errmsg, 0))); |
| 158 |
PUTBACK; |
| 159 |
call_method ("_error", G_VOID | G_DISCARD); |
| 160 |
} |
| 161 |
|
| 162 |
static int |
| 163 |
need (int count) |
| 164 |
{ |
| 165 |
if (count < 0 || (int)rem < count) |
| 166 |
{ |
| 167 |
error ("Unexpected end of message buffer"); |
| 168 |
return 0; |
| 169 |
} |
| 170 |
|
| 171 |
return 1; |
| 172 |
} |
| 173 |
|
| 174 |
static U8 * |
| 175 |
getn (int count, const U8 *errres) |
| 176 |
{ |
| 177 |
if (!need (count)) |
| 178 |
return (U8 *)errres; |
| 179 |
|
| 180 |
U8 *res = cur; |
| 181 |
|
| 182 |
cur += count; |
| 183 |
rem -= count; |
| 184 |
|
| 185 |
return res; |
| 186 |
} |
| 187 |
|
| 188 |
static U8 |
| 189 |
get8 (void) |
| 190 |
{ |
| 191 |
if (rem <= 0) |
| 192 |
{ |
| 193 |
error ("Unexpected end of message buffer"); |
| 194 |
return 0; |
| 195 |
} |
| 196 |
|
| 197 |
rem--; |
| 198 |
return *cur++; |
| 199 |
} |
| 200 |
|
| 201 |
static U32 |
| 202 |
getb (void) |
| 203 |
{ |
| 204 |
U32 res = 0; |
| 205 |
|
| 206 |
for (;;) |
| 207 |
{ |
| 208 |
U8 c = get8 (); |
| 209 |
res = (res << 7) | (c & 0x7f); |
| 210 |
|
| 211 |
if (!(c & 0x80)) |
| 212 |
return res; |
| 213 |
} |
| 214 |
} |
| 215 |
|
| 216 |
#ifdef BENCHMARK |
| 217 |
static double t1; |
| 218 |
|
| 219 |
static double |
| 220 |
tstamp (void) |
| 221 |
{ |
| 222 |
struct timeval tv; |
| 223 |
gettimeofday (&tv, 0); |
| 224 |
return tv.tv_sec + tv.tv_usec * 0.000001; |
| 225 |
} |
| 226 |
#endif |
| 227 |
|
| 228 |
static U32 |
| 229 |
process_length (void) |
| 230 |
{ |
| 231 |
U32 res = get8 (); |
| 232 |
|
| 233 |
if (res & 0x80) |
| 234 |
{ |
| 235 |
int cnt = res & 0x7f; |
| 236 |
res = 0; |
| 237 |
|
| 238 |
switch (cnt) |
| 239 |
{ |
| 240 |
case 0: |
| 241 |
error ("Indefinite ASN.1 lengths not supported"); |
| 242 |
return 0; |
| 243 |
|
| 244 |
default: |
| 245 |
error ("ASN.1 length too long"); |
| 246 |
return 0; |
| 247 |
|
| 248 |
case 4: res = (res << 8) | get8 (); |
| 249 |
case 3: res = (res << 8) | get8 (); |
| 250 |
case 2: res = (res << 8) | get8 (); |
| 251 |
case 1: res = (res << 8) | get8 (); |
| 252 |
} |
| 253 |
} |
| 254 |
|
| 255 |
return res; |
| 256 |
} |
| 257 |
|
| 258 |
static U32 |
| 259 |
process_integer32 (void) |
| 260 |
{ |
| 261 |
U32 length = process_length (); |
| 262 |
|
| 263 |
if (length <= 0) |
| 264 |
{ |
| 265 |
error ("INTEGER32 length equal to zero"); |
| 266 |
return 0; |
| 267 |
} |
| 268 |
|
| 269 |
U8 *data = getn (length, 0); |
| 270 |
|
| 271 |
if (!data) |
| 272 |
return 0; |
| 273 |
|
| 274 |
if (length > 5 || (length > 4 && data [0])) |
| 275 |
{ |
| 276 |
error ("INTEGER32 length too long"); |
| 277 |
return 0; |
| 278 |
} |
| 279 |
|
| 280 |
U32 res = data [0] & 0x80 ? 0xffffffff : 0; |
| 281 |
|
| 282 |
while (length--) |
| 283 |
res = (res << 8) | *data++; |
| 284 |
|
| 285 |
return res; |
| 286 |
} |
| 287 |
|
| 288 |
static SV * |
| 289 |
process_integer32_sv (void) |
| 290 |
{ |
| 291 |
return newSViv ((I32)process_integer32 ()); |
| 292 |
} |
| 293 |
|
| 294 |
static SV * |
| 295 |
process_unsigned32_sv (void) |
| 296 |
{ |
| 297 |
return newSVuv ((U32)process_integer32 ()); |
| 298 |
} |
| 299 |
|
| 300 |
#if IVSIZE >= 8 |
| 301 |
|
| 302 |
static U64TYPE |
| 303 |
process_integer64 (void) |
| 304 |
{ |
| 305 |
U32 length = process_length (); |
| 306 |
|
| 307 |
if (length <= 0) |
| 308 |
{ |
| 309 |
error ("INTEGER64 length equal to zero"); |
| 310 |
return 0; |
| 311 |
} |
| 312 |
|
| 313 |
U8 *data = getn (length, 0); |
| 314 |
|
| 315 |
if (!data) |
| 316 |
return 0; |
| 317 |
|
| 318 |
if (length > 9 || (length > 8 && data [0])) |
| 319 |
{ |
| 320 |
error ("INTEGER64 length too long"); |
| 321 |
return 0; |
| 322 |
} |
| 323 |
|
| 324 |
U64TYPE res = data [0] & 0x80 ? 0xffffffffffffffff : 0; |
| 325 |
|
| 326 |
while (length--) |
| 327 |
res = (res << 8) | *data++; |
| 328 |
|
| 329 |
return res; |
| 330 |
} |
| 331 |
|
| 332 |
static SV * |
| 333 |
process_integer64_sv (void) |
| 334 |
{ |
| 335 |
return newSViv ((I64TYPE)process_integer64 ()); |
| 336 |
} |
| 337 |
|
| 338 |
static SV * |
| 339 |
process_unsigned64_sv (void) |
| 340 |
{ |
| 341 |
return newSVuv ((U64TYPE)process_integer64 ()); |
| 342 |
} |
| 343 |
|
| 344 |
#endif |
| 345 |
|
| 346 |
static SV * |
| 347 |
process_octet_string_sv (void) |
| 348 |
{ |
| 349 |
U32 length = process_length (); |
| 350 |
|
| 351 |
U8 *data = getn (length, 0); |
| 352 |
if (!data) |
| 353 |
{ |
| 354 |
error ("OCTET STRING too long"); |
| 355 |
return &PL_sv_undef; |
| 356 |
} |
| 357 |
|
| 358 |
return newSVpvn (data, length); |
| 359 |
} |
| 360 |
|
| 361 |
static char * |
| 362 |
write_uv (char *buf, U32 u) |
| 363 |
{ |
| 364 |
// the one-digit case is absolutely predominant |
| 365 |
if (u < 10) |
| 366 |
*buf++ = u + '0'; |
| 367 |
else |
| 368 |
buf += sprintf (buf, "%u", (unsigned int)u); |
| 369 |
|
| 370 |
return buf; |
| 371 |
} |
| 372 |
|
| 373 |
static SV * |
| 374 |
process_object_identifier_sv (void) |
| 375 |
{ |
| 376 |
U32 length = process_length (); |
| 377 |
|
| 378 |
if (length <= 0) |
| 379 |
{ |
| 380 |
error ("OBJECT IDENTIFIER length equal to zero"); |
| 381 |
return &PL_sv_undef; |
| 382 |
} |
| 383 |
|
| 384 |
U8 *end = cur + length; |
| 385 |
U32 w = getb (); |
| 386 |
|
| 387 |
static char oid[MAX_OID_STRLEN]; // must be static |
| 388 |
char *app = oid; |
| 389 |
|
| 390 |
if (leading_dot < 0) |
| 391 |
leading_dot = SvTRUE (*hv_fetch ((HV *)SvRV (msg), "_leading_dot", sizeof ("_leading_dot") - 1, 1)); |
| 392 |
|
| 393 |
*app = '.'; app += ! ! leading_dot; |
| 394 |
app = write_uv (app, (U8)w / 40); |
| 395 |
*app++ = '.'; |
| 396 |
app = write_uv (app, (U8)w % 40); |
| 397 |
|
| 398 |
// we assume an oid component is never > 64 bytes |
| 399 |
while (cur < end && oid + sizeof (oid) - app > 64) |
| 400 |
{ |
| 401 |
w = getb (); |
| 402 |
*app++ = '.'; |
| 403 |
app = write_uv (app, w); |
| 404 |
} |
| 405 |
|
| 406 |
return newSVpvn (oid, app - oid); |
| 407 |
} |
| 408 |
|
| 409 |
static AV *av_type; |
| 410 |
|
| 411 |
static SV * |
| 412 |
process_sv (int *found) |
| 413 |
{ |
| 414 |
int type = get8 (); |
| 415 |
|
| 416 |
*found = type; |
| 417 |
|
| 418 |
SV *res; |
| 419 |
|
| 420 |
switch (type) |
| 421 |
{ |
| 422 |
case ASN_OBJECT_IDENTIFIER: |
| 423 |
res = process_object_identifier_sv (); |
| 424 |
break; |
| 425 |
|
| 426 |
case ASN_INTEGER32: |
| 427 |
res = process_integer32_sv (); |
| 428 |
break; |
| 429 |
|
| 430 |
case ASN_APPLICATION | ASN_UNSIGNED32: |
| 431 |
case ASN_APPLICATION | ASN_COUNTER32: |
| 432 |
case ASN_APPLICATION | ASN_TIMETICKS: |
| 433 |
res = process_unsigned32_sv (); |
| 434 |
break; |
| 435 |
|
| 436 |
case ASN_SEQUENCE | ASN_CONSTRUCTED: |
| 437 |
res = newSVuv (process_length ()); |
| 438 |
break; |
| 439 |
|
| 440 |
case ASN_OCTET_STRING: |
| 441 |
case ASN_APPLICATION | ASN_OPAQUE: |
| 442 |
res = process_octet_string_sv (); |
| 443 |
break; |
| 444 |
|
| 445 |
default: |
| 446 |
{ |
| 447 |
if (type > AvFILLp (av_type) |
| 448 |
|| AvARRAY (av_type)[type] == 0 |
| 449 |
|| AvARRAY (av_type)[type] == &PL_sv_undef) |
| 450 |
{ |
| 451 |
error ("Unknown ASN.1 type"); |
| 452 |
return &PL_sv_undef; |
| 453 |
} |
| 454 |
|
| 455 |
dSP; |
| 456 |
PUSHMARK (SP); |
| 457 |
EXTEND (SP, 2); |
| 458 |
PUSHs (msg); |
| 459 |
PUSHs (sv_2mortal (newSViv (type))); |
| 460 |
PUTBACK; |
| 461 |
int count = call_sv (AvARRAY (av_type)[type], G_SCALAR); |
| 462 |
SPAGAIN; |
| 463 |
res = count ? SvREFCNT_inc (TOPs) : &PL_sv_undef; |
| 464 |
} |
| 465 |
} |
| 466 |
|
| 467 |
return errflag ? &PL_sv_undef : res; |
| 468 |
} |
| 469 |
|
| 470 |
static SV * |
| 471 |
ber_decode () |
| 472 |
{ |
| 473 |
int identifier = get8 (); |
| 474 |
|
| 475 |
SV *res; |
| 476 |
|
| 477 |
int constructed = identifier & ASN_CONSTRUCTED; |
| 478 |
int klass = identifier & ASN_CLASS_MASK; |
| 479 |
int tag = identifier & ASN_TAG_MASK; |
| 480 |
|
| 481 |
if (tag == ASN_TAG_BER) |
| 482 |
tag = getb (); |
| 483 |
|
| 484 |
#if 0 |
| 485 |
if (/type & ASN_TAG_MASK) == ASN_TAG_MASK) |
| 486 |
/* TODO: ber tag follows */; |
| 487 |
#endif |
| 488 |
|
| 489 |
if (constructed) |
| 490 |
{ |
| 491 |
U32 len = process_length (); |
| 492 |
U32 seqend = (cur - buf) + len; |
| 493 |
AV *av = (AV *)sv_2mortal ((SV *)newAV ()); |
| 494 |
|
| 495 |
while (cur < buf + seqend) |
| 496 |
av_push (av, ber_decode ()); |
| 497 |
|
| 498 |
if (cur > buf + seqend) |
| 499 |
croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend); |
| 500 |
|
| 501 |
res = newRV_inc ((SV *)av); |
| 502 |
} |
| 503 |
else |
| 504 |
switch (identifier) |
| 505 |
{ |
| 506 |
case ASN_NULL: |
| 507 |
res = &PL_sv_undef; |
| 508 |
break; |
| 509 |
|
| 510 |
case ASN_OBJECT_IDENTIFIER: |
| 511 |
res = process_object_identifier_sv (); |
| 512 |
break; |
| 513 |
|
| 514 |
case ASN_INTEGER32: |
| 515 |
res = process_integer32_sv (); |
| 516 |
break; |
| 517 |
|
| 518 |
case ASN_APPLICATION | ASN_UNSIGNED32: |
| 519 |
case ASN_APPLICATION | ASN_COUNTER32: |
| 520 |
case ASN_APPLICATION | ASN_TIMETICKS: |
| 521 |
res = process_unsigned32_sv (); |
| 522 |
break; |
| 523 |
|
| 524 |
#if 0 // handled by default case |
| 525 |
case ASN_OCTET_STRING: |
| 526 |
case ASN_APPLICATION | ASN_IPADDRESS: |
| 527 |
case ASN_APPLICATION | ASN_OPAQUE: |
| 528 |
res = process_octet_string_sv (); |
| 529 |
break; |
| 530 |
#endif |
| 531 |
|
| 532 |
case ASN_APPLICATION | ASN_COUNTER64: |
| 533 |
res = process_integer64_sv (); |
| 534 |
break; |
| 535 |
|
| 536 |
default: |
| 537 |
res = process_octet_string_sv (); |
| 538 |
break; |
| 539 |
} |
| 540 |
|
| 541 |
if (errflag) |
| 542 |
croak ("some error"); |
| 543 |
|
| 544 |
AV *av = newAV (); |
| 545 |
av_fill (av, BER_ARRAYSIZE - 1); |
| 546 |
AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass >> ASN_CLASS_SHIFT); |
| 547 |
AvARRAY (av)[BER_TAG ] = newSVcacheint (tag); |
| 548 |
AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0); |
| 549 |
AvARRAY (av)[BER_DATA ] = res; |
| 550 |
res = newRV_noinc ((SV *)av); |
| 551 |
|
| 552 |
return errflag ? &PL_sv_undef : res; |
| 553 |
} |
| 554 |
|
| 555 |
///////////////////////////////////////////////////////////////////////////// |
| 556 |
|
| 557 |
#if HAVE_VERSIONSORT |
| 558 |
|
| 559 |
static int |
| 560 |
oid_lex_cmp (const void *a_, const void *b_) |
| 561 |
{ |
| 562 |
const char *a = SvPVX (*(SV **)a_); |
| 563 |
const char *b = SvPVX (*(SV **)b_); |
| 564 |
|
| 565 |
a += *a == '.'; |
| 566 |
b += *b == '.'; |
| 567 |
|
| 568 |
return strverscmp (a, b); |
| 569 |
} |
| 570 |
|
| 571 |
#endif |
| 572 |
|
| 573 |
MODULE = Net::SNMP::XS PACKAGE = Net::SNMP::XS |
| 574 |
|
| 575 |
PROTOTYPES: ENABLE |
| 576 |
|
| 577 |
BOOT: |
| 578 |
{ |
| 579 |
HV *stash = gv_stashpv ("Net::SNMP::XS", 1); |
| 580 |
|
| 581 |
static const struct { |
| 582 |
const char *name; |
| 583 |
IV iv; |
| 584 |
} *civ, const_iv[] = { |
| 585 |
{ "ASN_BOOLEAN", ASN_BOOLEAN }, |
| 586 |
{ "ASN_INTEGER32", ASN_INTEGER32 }, |
| 587 |
{ "ASN_BIT_STRING", ASN_BIT_STRING }, |
| 588 |
{ "ASN_OCTET_STRING", ASN_OCTET_STRING }, |
| 589 |
{ "ASN_NULL", ASN_NULL }, |
| 590 |
{ "ASN_OBJECT_IDENTIFIER", ASN_OBJECT_IDENTIFIER }, |
| 591 |
{ "ASN_TAG_BER", ASN_TAG_BER }, |
| 592 |
{ "ASN_TAG_MASK", ASN_TAG_MASK }, |
| 593 |
{ "ASN_CONSTRUCTED", ASN_CONSTRUCTED }, |
| 594 |
{ "ASN_UNIVERSAL", ASN_UNIVERSAL >> ASN_CLASS_SHIFT }, |
| 595 |
{ "ASN_APPLICATION", ASN_APPLICATION >> ASN_CLASS_SHIFT }, |
| 596 |
{ "ASN_CONTEXT", ASN_CONTEXT >> ASN_CLASS_SHIFT }, |
| 597 |
{ "ASN_PRIVATE", ASN_PRIVATE >> ASN_CLASS_SHIFT }, |
| 598 |
{ "ASN_CLASS_MASK", ASN_CLASS_MASK }, |
| 599 |
{ "ASN_CLASS_SHIFT", ASN_CLASS_SHIFT }, |
| 600 |
{ "ASN_SEQUENCE", ASN_SEQUENCE }, |
| 601 |
{ "ASN_IPADDRESS", ASN_IPADDRESS }, |
| 602 |
{ "ASN_COUNTER32", ASN_COUNTER32 }, |
| 603 |
{ "ASN_UNSIGNED32", ASN_UNSIGNED32 }, |
| 604 |
{ "ASN_TIMETICKS", ASN_TIMETICKS }, |
| 605 |
{ "ASN_OPAQUE", ASN_OPAQUE }, |
| 606 |
{ "ASN_COUNTER64", ASN_COUNTER64 }, |
| 607 |
|
| 608 |
{ "BER_CLASS" , BER_CLASS }, |
| 609 |
{ "BER_TAG" , BER_TAG }, |
| 610 |
{ "BER_CONSTRUCTED", BER_CONSTRUCTED }, |
| 611 |
{ "BER_DATA" , BER_DATA }, |
| 612 |
}; |
| 613 |
|
| 614 |
for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--) |
| 615 |
newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv)); |
| 616 |
|
| 617 |
av_type = newAV (); |
| 618 |
} |
| 619 |
|
| 620 |
void |
| 621 |
set_type (int type, SV *cv) |
| 622 |
CODE: |
| 623 |
cv = x_get_cv (cv); |
| 624 |
assert (SvTYPE (cv) == SVt_PVCV); |
| 625 |
av_store (av_type, type, SvREFCNT_inc_NN (cv)); |
| 626 |
|
| 627 |
SV * |
| 628 |
ber_decode (SV *ber) |
| 629 |
CODE: |
| 630 |
{ |
| 631 |
clear_bufobj (); |
| 632 |
|
| 633 |
errflag = 0; |
| 634 |
leading_dot = 0; |
| 635 |
|
| 636 |
bufsv = ber; |
| 637 |
|
| 638 |
buf = SvPVbyte (bufsv, len); |
| 639 |
cur = buf; |
| 640 |
rem = len; |
| 641 |
|
| 642 |
RETVAL = ber_decode (); |
| 643 |
} |
| 644 |
OUTPUT: RETVAL |
| 645 |
|
| 646 |
void |
| 647 |
ber_eq (SV *tuple, SV *klass = &PL_sv_undef, SV *tag = &PL_sv_undef, SV *constructed = &PL_sv_undef, SV *data = &PL_sv_undef) |
| 648 |
PROTOTYPE: $;$$$ |
| 649 |
PPCODE: |
| 650 |
{ |
| 651 |
if (!SvOK (tuple)) |
| 652 |
XSRETURN_NO; |
| 653 |
|
| 654 |
if (!SvROK (tuple) || SvTYPE (SvRV (tuple)) != SVt_PVAV) |
| 655 |
croak ("ber_seq: tuple must be ber tuple (array-ref)"); |
| 656 |
|
| 657 |
AV *av = (AV *)SvRV (tuple); |
| 658 |
|
| 659 |
XPUSHs ( |
| 660 |
(!SvOK (klass) || SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass)) |
| 661 |
&& (!SvOK (tag) || SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag)) |
| 662 |
&& (!SvOK (constructed) || !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed)) |
| 663 |
&& (!SvOK (data) || sv_eq (AvARRAY (av)[BER_DATA ], data)) |
| 664 |
? &PL_sv_yes : &PL_sv_no); |
| 665 |
} |
| 666 |
|
| 667 |
void |
| 668 |
ber_seq (SV *tuple) |
| 669 |
PROTOTYPE: $ |
| 670 |
PPCODE: |
| 671 |
{ |
| 672 |
if (!SvOK (tuple)) |
| 673 |
XSRETURN_UNDEF; |
| 674 |
|
| 675 |
if (!SvROK (tuple) || SvTYPE (SvRV (tuple)) != SVt_PVAV) |
| 676 |
croak ("ber_seq: tuple must be ber tuple (array-ref)"); |
| 677 |
|
| 678 |
AV *av = (AV *)SvRV (tuple); |
| 679 |
|
| 680 |
XPUSHs ( |
| 681 |
SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL |
| 682 |
&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE |
| 683 |
&& SvIV (AvARRAY (av)[BER_CONSTRUCTED]) |
| 684 |
? AvARRAY (av)[BER_DATA] : &PL_sv_undef); |
| 685 |
} |
| 686 |
|
| 687 |
void |
| 688 |
ber_i32 (SV *tuple, IV value) |
| 689 |
PROTOTYPE: $$ |
| 690 |
PPCODE: |
| 691 |
{ |
| 692 |
if (!SvOK (tuple)) |
| 693 |
XSRETURN_NO; |
| 694 |
|
| 695 |
if (!SvROK (tuple) || SvTYPE (SvRV (tuple)) != SVt_PVAV) |
| 696 |
croak ("ber_seq: tuple must be ber tuple (array-ref)"); |
| 697 |
|
| 698 |
AV *av = (AV *)SvRV (tuple); |
| 699 |
|
| 700 |
XPUSHs ( |
| 701 |
SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL |
| 702 |
&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32 |
| 703 |
&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) |
| 704 |
&& SvIV (AvARRAY (av)[BER_DATA ]) == value |
| 705 |
? &PL_sv_yes : &PL_sv_no); |
| 706 |
} |
| 707 |
|
| 708 |
void |
| 709 |
ber_oid (SV *tuple, SV *oid) |
| 710 |
PROTOTYPE: $$ |
| 711 |
PPCODE: |
| 712 |
{ |
| 713 |
if (!SvOK (tuple)) |
| 714 |
XSRETURN_NO; |
| 715 |
|
| 716 |
if (!SvROK (tuple) || SvTYPE (SvRV (tuple)) != SVt_PVAV) |
| 717 |
croak ("ber_seq: tuple must be ber tuple (array-ref)"); |
| 718 |
|
| 719 |
AV *av = (AV *)SvRV (tuple); |
| 720 |
|
| 721 |
XPUSHs ( |
| 722 |
SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL |
| 723 |
&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER |
| 724 |
&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) |
| 725 |
&& sv_eq (AvARRAY (av)[BER_DATA], oid) |
| 726 |
? &PL_sv_yes : &PL_sv_no); |
| 727 |
} |
| 728 |
|
| 729 |
MODULE = Net::SNMP::XS PACKAGE = Net::SNMP::Message |
| 730 |
|
| 731 |
void |
| 732 |
_buffer_append (BUFOBJ self, SV *value) |
| 733 |
ALIAS: |
| 734 |
_buffer_put = 1 |
| 735 |
PPCODE: |
| 736 |
{ |
| 737 |
STRLEN vlen; |
| 738 |
const char *vstr = SvPVbyte (value, vlen); |
| 739 |
|
| 740 |
if (ix) |
| 741 |
sv_insert (bufsv, 0, 0, vstr, vlen); |
| 742 |
else |
| 743 |
sv_catpvn (bufsv, vstr, vlen); |
| 744 |
|
| 745 |
buf = SvPVbyte (bufsv, len); |
| 746 |
cur = buf; |
| 747 |
rem = len; |
| 748 |
|
| 749 |
SV *len_sv = *hv_fetch ((HV *)cur_bufobj, "_length", sizeof ("_length") - 1, 1); |
| 750 |
sv_setiv (len_sv, len); |
| 751 |
|
| 752 |
// some callers test for defined'ness of the returnvalue. *sigh* |
| 753 |
XPUSHs (&PL_sv_yes); |
| 754 |
} |
| 755 |
|
| 756 |
void |
| 757 |
_buffer_get (BUFOBJ self, int count = -1) |
| 758 |
PPCODE: |
| 759 |
{ |
| 760 |
// grrr. |
| 761 |
if (count < 0) |
| 762 |
{ |
| 763 |
hv_delete ((HV *)SvRV (self), "_index" , 6, G_DISCARD); |
| 764 |
hv_delete ((HV *)SvRV (self), "_length", 7, G_DISCARD); |
| 765 |
XPUSHs (sv_2mortal (newSVsv (bufsv))); |
| 766 |
sv_setpvn (bufsv, "", 0); |
| 767 |
|
| 768 |
buf = ""; |
| 769 |
cur = buf; |
| 770 |
rem = 0; |
| 771 |
|
| 772 |
XSRETURN (1); |
| 773 |
} |
| 774 |
|
| 775 |
char *data = getn (count, 0); |
| 776 |
|
| 777 |
if (data) |
| 778 |
XPUSHs (sv_2mortal (newSVpvn (data, count))); |
| 779 |
} |
| 780 |
|
| 781 |
U32 |
| 782 |
index (BUFOBJ self, int ndx = -1) |
| 783 |
CODE: |
| 784 |
{ |
| 785 |
if (ndx >= 0 && ndx < len) |
| 786 |
{ |
| 787 |
cur = buf + ndx; |
| 788 |
rem = len - ndx; |
| 789 |
} |
| 790 |
|
| 791 |
RETVAL = cur - buf; |
| 792 |
} |
| 793 |
OUTPUT: RETVAL |
| 794 |
|
| 795 |
U32 |
| 796 |
_process_length (BUFOBJ self, ...) |
| 797 |
ALIAS: |
| 798 |
_process_sequence = 0 |
| 799 |
CODE: |
| 800 |
RETVAL = process_length (); |
| 801 |
OUTPUT: RETVAL |
| 802 |
|
| 803 |
SV * |
| 804 |
_process_integer32 (BUFOBJ self, ...) |
| 805 |
CODE: |
| 806 |
RETVAL = process_integer32_sv (); |
| 807 |
OUTPUT: RETVAL |
| 808 |
|
| 809 |
SV * |
| 810 |
_process_counter (BUFOBJ self, ...) |
| 811 |
ALIAS: |
| 812 |
_process_gauge = 0 |
| 813 |
_process_timeticks = 0 |
| 814 |
CODE: |
| 815 |
RETVAL = process_unsigned32_sv (); |
| 816 |
OUTPUT: RETVAL |
| 817 |
|
| 818 |
#if IVSIZE >= 8 |
| 819 |
|
| 820 |
SV * |
| 821 |
_process_counter64 (BUFOBJ self, ...) |
| 822 |
CODE: |
| 823 |
RETVAL = process_unsigned64_sv (); |
| 824 |
OUTPUT: RETVAL |
| 825 |
|
| 826 |
#endif |
| 827 |
|
| 828 |
SV * |
| 829 |
_process_object_identifier (BUFOBJ self, ...) |
| 830 |
CODE: |
| 831 |
RETVAL = process_object_identifier_sv (); |
| 832 |
OUTPUT: RETVAL |
| 833 |
|
| 834 |
SV * |
| 835 |
_process_octet_string (BUFOBJ self, ...) |
| 836 |
ALIAS: |
| 837 |
_process_opaque = 0 |
| 838 |
CODE: |
| 839 |
RETVAL = process_octet_string_sv (); |
| 840 |
OUTPUT: RETVAL |
| 841 |
|
| 842 |
SV * |
| 843 |
_process_ipaddress (BUFOBJ self, ...) |
| 844 |
CODE: |
| 845 |
{ |
| 846 |
U32 length = process_length (); |
| 847 |
if (length != 4) |
| 848 |
{ |
| 849 |
error ("IP ADDRESS length not four"); |
| 850 |
XSRETURN_UNDEF; |
| 851 |
} |
| 852 |
|
| 853 |
U8 *data = getn (4, "\x00\x00\x00\x00"); |
| 854 |
RETVAL = newSVpvf ("%d.%d.%d.%d", data [0], data [1], data [2], data [3]); |
| 855 |
} |
| 856 |
OUTPUT: RETVAL |
| 857 |
|
| 858 |
SV * |
| 859 |
process (BUFOBJ self, SV *expected = &PL_sv_undef, SV *found = 0) |
| 860 |
CODE: |
| 861 |
{ |
| 862 |
int type; |
| 863 |
|
| 864 |
RETVAL = process_sv (&type); |
| 865 |
|
| 866 |
if (found) |
| 867 |
sv_setiv (found, type); |
| 868 |
|
| 869 |
if (SvOK (expected) && type != SvIV (expected)) |
| 870 |
error ("Expected a different type than found"); |
| 871 |
} |
| 872 |
OUTPUT: RETVAL |
| 873 |
|
| 874 |
MODULE = Net::SNMP::XS PACKAGE = Net::SNMP::PDU |
| 875 |
|
| 876 |
SV * |
| 877 |
_process_var_bind_list (BUFOBJ self) |
| 878 |
CODE: |
| 879 |
{ |
| 880 |
if (get8 () != ASN_SEQUENCE | ASN_CONSTRUCTED) |
| 881 |
error ("SEQUENCE expected at beginning of VarBindList"); |
| 882 |
|
| 883 |
int seqlen = process_length (); |
| 884 |
U8 *end = cur + seqlen; |
| 885 |
|
| 886 |
HV *list = newHV (); |
| 887 |
AV *names = newAV (); |
| 888 |
HV *types = newHV (); |
| 889 |
|
| 890 |
hv_store ((HV *)cur_bufobj, "_var_bind_list" , sizeof ("_var_bind_list" ) - 1, newRV_noinc ((SV *)list ), 0); |
| 891 |
hv_store ((HV *)cur_bufobj, "_var_bind_names", sizeof ("_var_bind_names") - 1, newRV_noinc ((SV *)names), 0); |
| 892 |
hv_store ((HV *)cur_bufobj, "_var_bind_types", sizeof ("_var_bind_types") - 1, newRV_noinc ((SV *)types), 0); |
| 893 |
|
| 894 |
while (cur < end && !errflag) |
| 895 |
{ |
| 896 |
// SEQUENCE ObjectName ObjectSyntax |
| 897 |
if (get8 () != ASN_SEQUENCE | ASN_CONSTRUCTED) |
| 898 |
error ("SEQUENCE expected at beginning of VarBind"); |
| 899 |
process_length (); |
| 900 |
|
| 901 |
if (get8 () != ASN_OBJECT_IDENTIFIER) |
| 902 |
error ("OBJECT IDENTIFIER expected at beginning of VarBind"); |
| 903 |
int type, oidlen; |
| 904 |
SV *oid = process_object_identifier_sv (); |
| 905 |
SV *val = process_sv (&type); |
| 906 |
|
| 907 |
hv_store_ent (types, oid, newSViv (type), 0); |
| 908 |
hv_store_ent (list , oid, val, 0); |
| 909 |
av_push (names, oid); |
| 910 |
} |
| 911 |
|
| 912 |
// sigh - great design to do it here |
| 913 |
SV *pdu_type = *hv_fetch ((HV *)cur_bufobj, "_pdu_type" , sizeof ("_pdu_type" ) - 1, 1); |
| 914 |
|
| 915 |
if (SvIV (pdu_type) == 0xa8) // REPORT |
| 916 |
{ |
| 917 |
PUSHMARK (SP); |
| 918 |
XPUSHs (msg); |
| 919 |
PUTBACK; |
| 920 |
call_method ("_report_pdu_error", G_VOID | G_DISCARD); |
| 921 |
SPAGAIN; |
| 922 |
XSRETURN_EMPTY; |
| 923 |
} |
| 924 |
|
| 925 |
RETVAL = newRV_inc ((SV *)list); |
| 926 |
} |
| 927 |
OUTPUT: RETVAL |
| 928 |
|
| 929 |
MODULE = Net::SNMP::XS PACKAGE = Net::SNMP |
| 930 |
|
| 931 |
void |
| 932 |
oid_base_match (SV *base_, SV *oid_) |
| 933 |
PROTOTYPE: $$ |
| 934 |
ALIAS: |
| 935 |
oid_context_match = 0 |
| 936 |
PPCODE: |
| 937 |
{ |
| 938 |
if (!SvOK (base_) || !SvOK (oid_)) |
| 939 |
XSRETURN_NO; |
| 940 |
|
| 941 |
STRLEN blen, olen; |
| 942 |
char *base = SvPVbyte (base_, blen); |
| 943 |
char *oid = SvPVbyte (oid_ , olen); |
| 944 |
|
| 945 |
blen -= *base == '.'; base += *base == '.'; |
| 946 |
olen -= *base == '.'; oid += *oid == '.'; |
| 947 |
|
| 948 |
if (olen < blen) |
| 949 |
XSRETURN_NO; |
| 950 |
|
| 951 |
if (memcmp (base, oid, blen)) |
| 952 |
XSRETURN_NO; |
| 953 |
|
| 954 |
if (oid [blen] && oid [blen] != '.') |
| 955 |
XSRETURN_NO; |
| 956 |
|
| 957 |
XSRETURN_YES; |
| 958 |
} |
| 959 |
|
| 960 |
#if HAVE_VERSIONSORT |
| 961 |
|
| 962 |
void |
| 963 |
oid_lex_sort (...) |
| 964 |
PROTOTYPE: @ |
| 965 |
PPCODE: |
| 966 |
{ |
| 967 |
// make sure SvPVX is valid |
| 968 |
int i; |
| 969 |
for (i = items; i--; ) |
| 970 |
{ |
| 971 |
SV *sv = ST (i); |
| 972 |
|
| 973 |
if (SvTYPE (sv) < SVt_PV || SvTYPE (sv) == SVt_PVAV && SvTYPE (sv) == SVt_PVHV) |
| 974 |
SvPV_force_nolen (sv); |
| 975 |
} |
| 976 |
|
| 977 |
qsort (&ST (0), items, sizeof (SV *), oid_lex_cmp); |
| 978 |
|
| 979 |
EXTEND (SP, items); |
| 980 |
// we cheat somewhat by not returning copies here |
| 981 |
for (i = 0; i < items; ++i) |
| 982 |
PUSHs (sv_2mortal (SvREFCNT_inc (ST (i)))); |
| 983 |
} |
| 984 |
|
| 985 |
int |
| 986 |
_index_cmp (const char *a, const char *b) |
| 987 |
PROTOTYPE: $$ |
| 988 |
CODE: |
| 989 |
RETVAL = strverscmp (a, b); |
| 990 |
OUTPUT: RETVAL |
| 991 |
|
| 992 |
#endif |
| 993 |
|
