| Start/ | End/ | |||
| True | False | - | Line | Source |
| 1 | /* | |||
| 2 | * The ASB.1/BER parsing code is derived from ip_nat_snmp_basic.c which was in | |||
| 3 | * turn derived from the gxsnmp package by Gregory McLean & Jochen Friedrich | |||
| 4 | * | |||
| 5 | * Copyright (c) 2000 RP Internet (www.rpi.net.au). | |||
| 6 | * | |||
| 7 | * This program is free software; you can redistribute it and/or modify | |||
| 8 | * it under the terms of the GNU General Public License as published by | |||
| 9 | * the Free Software Foundation; either version 2 of the License, or | |||
| 10 | * (at your option) any later version. | |||
| 11 | * This program is distributed in the hope that it will be useful, | |||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
| 14 | * GNU General Public License for more details. | |||
| 15 | * You should have received a copy of the GNU General Public License | |||
| 16 | * along with this program; if not, write to the Free Software | |||
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |||
| 18 | */ | |||
| 19 | ||||
| 20 | #include <linux/config.h> | |||
| 21 | #include <linux/module.h> | |||
| 22 | #include <linux/types.h> | |||
| 23 | #include <linux/kernel.h> | |||
| 24 | #include <linux/mm.h> | |||
| 25 | #include <linux/slab.h> | |||
| 26 | #include "cifspdu.h" | |||
| 27 | #include "cifsglob.h" | |||
| 28 | #include "cifs_debug.h" | |||
| 29 | #include "cifsproto.h" | |||
| 30 | ||||
| 31 | /***************************************************************************** | |||
| 32 | * | |||
| 33 | * Basic ASN.1 decoding routines (gxsnmp author Dirk Wisse) | |||
| 34 | * | |||
| 35 | *****************************************************************************/ | |||
| 36 | ||||
| 37 | /* Class */ | |||
| 38 | #define ASN1_UNI 0 /* Universal */ | |||
| 39 | #define ASN1_APL 1 /* Application */ | |||
| 40 | #define ASN1_CTX 2 /* Context */ | |||
| 41 | #define ASN1_PRV 3 /* Private */ | |||
| 42 | ||||
| 43 | /* Tag */ | |||
| 44 | #define ASN1_EOC 0 /* End Of Contents or N/A */ | |||
| 45 | #define ASN1_BOL 1 /* Boolean */ | |||
| 46 | #define ASN1_INT 2 /* Integer */ | |||
| 47 | #define ASN1_BTS 3 /* Bit String */ | |||
| 48 | #define ASN1_OTS 4 /* Octet String */ | |||
| 49 | #define ASN1_NUL 5 /* Null */ | |||
| 50 | #define ASN1_OJI 6 /* Object Identifier */ | |||
| 51 | #define ASN1_OJD 7 /* Object Description */ | |||
| 52 | #define ASN1_EXT 8 /* External */ | |||
| 53 | #define ASN1_SEQ 16 /* Sequence */ | |||
| 54 | #define ASN1_SET 17 /* Set */ | |||
| 55 | #define ASN1_NUMSTR 18 /* Numerical String */ | |||
| 56 | #define ASN1_PRNSTR 19 /* Printable String */ | |||
| 57 | #define ASN1_TEXSTR 20 /* Teletext String */ | |||
| 58 | #define ASN1_VIDSTR 21 /* Video String */ | |||
| 59 | #define ASN1_IA5STR 22 /* IA5 String */ | |||
| 60 | #define ASN1_UNITIM 23 /* Universal Time */ | |||
| 61 | #define ASN1_GENTIM 24 /* General Time */ | |||
| 62 | #define ASN1_GRASTR 25 /* Graphical String */ | |||
| 63 | #define ASN1_VISSTR 26 /* Visible String */ | |||
| 64 | #define ASN1_GENSTR 27 /* General String */ | |||
| 65 | ||||
| 66 | /* Primitive / Constructed methods*/ | |||
| 67 | #define ASN1_PRI 0 /* Primitive */ | |||
| 68 | #define ASN1_CON 1 /* Constructed */ | |||
| 69 | ||||
| 70 | /* | |||
| 71 | * Error codes. | |||
| 72 | */ | |||
| 73 | #define ASN1_ERR_NOERROR 0 | |||
| 74 | #define ASN1_ERR_DEC_EMPTY 2 | |||
| 75 | #define ASN1_ERR_DEC_EOC_MISMATCH 3 | |||
| 76 | #define ASN1_ERR_DEC_LENGTH_MISMATCH 4 | |||
| 77 | #define ASN1_ERR_DEC_BADVALUE 5 | |||
| 78 | ||||
| 79 | #define SPNEGO_OID_LEN 7 | |||
| 80 | #define NTLMSSP_OID_LEN 10 | |||
| 81 | static unsigned long SPNEGO_OID[7] = { 1, 3, 6, 1, 5, 5, 2 }; | |||
| 82 | static unsigned long NTLMSSP_OID[10] = { 1, 3, 6, 1, 4, 1, 311, 2, 2, 10 }; | |||
| 83 | ||||
| 84 | /* | |||
| 85 | * ASN.1 context. | |||
| 86 | */ | |||
| 87 | struct asn1_ctx { | |||
| 88 | int error; /* Error condition */ | |||
| 89 | unsigned char *pointer; /* Octet just to be decoded */ | |||
| 90 | unsigned char *begin; /* First octet */ | |||
| 91 | unsigned char *end; /* Octet after last octet */ | |||
| 92 | }; | |||
| 93 | ||||
| 94 | /* | |||
| 95 | * Octet string (not null terminated) | |||
| 96 | */ | |||
| 97 | struct asn1_octstr { | |||
| 98 | unsigned char *data; | |||
| 99 | unsigned int len; | |||
| 100 | }; | |||
| 101 | ||||
| 102 | static void | |||
| 0 | 0 | - | 103 | asn1_open(struct asn1_ctx *ctx, unsigned char *buf, unsigned int len) |
| 104 | { | |||
| 105 | ctx->begin = buf; | |||
| 106 | ctx->end = buf + len; | |||
| 107 | ctx->pointer = buf; | |||
| 108 | ctx->error = ASN1_ERR_NOERROR; | |||
| 109 | } | |||
| 110 | ||||
| 111 | static unsigned char | |||
| 0 | 0 | - | 112 | asn1_octet_decode(struct asn1_ctx *ctx, unsigned char *ch) |
| 113 | { | |||
| 0 | 0 | - | 114 | if (ctx->pointer >= ctx->end) { |
| 115 | ctx->error = ASN1_ERR_DEC_EMPTY; | |||
| 0 | - | 116 | return 0; | |
| 117 | } | |||
| 118 | *ch = *(ctx->pointer)++; | |||
| 0 | - | 119 | return 1; | |
| 120 | } | |||
| 121 | ||||
| 122 | static unsigned char | |||
| 0 | 0 | - | 123 | asn1_tag_decode(struct asn1_ctx *ctx, unsigned int *tag) |
| 124 | { | |||
| 125 | unsigned char ch; | |||
| 126 | ||||
| 127 | *tag = 0; | |||
| 128 | ||||
| 129 | do { | |||
| 0 | 0 | - | 130 | if (!asn1_octet_decode(ctx, &ch)) |
| 0 | - | 131 | return 0; | |
| 132 | *tag <<= 7; | |||
| 133 | *tag |= ch & 0x7F; | |||
| 0 | 0 | - | 134 | } while ((ch & 0x80) == 0x80); |
| 0 | - | 135 | return 1; | |
| 136 | } | |||
| 137 | ||||
| 138 | static unsigned char | |||
| 0 | 0 | - | 139 | asn1_id_decode(struct asn1_ctx *ctx, |
| 140 | unsigned int *cls, unsigned int *con, unsigned int *tag) | |||
| 141 | { | |||
| 142 | unsigned char ch; | |||
| 143 | ||||
| 0 | 0 | - | 144 | if (!asn1_octet_decode(ctx, &ch)) |
| 0 | - | 145 | return 0; | |
| 146 | ||||
| 147 | *cls = (ch & 0xC0) >> 6; | |||
| 148 | *con = (ch & 0x20) >> 5; | |||
| 149 | *tag = (ch & 0x1F); | |||
| 150 | ||||
| 0 | 0 | - | 151 | if (*tag == 0x1F) { |
| 0 | 0 | - | 152 | if (!asn1_tag_decode(ctx, tag)) |
| 0 | - | 153 | return 0; | |
| 154 | } | |||
| 0 | - | 155 | return 1; | |
| 156 | } | |||
| 157 | ||||
| 158 | static unsigned char | |||
| 0 | 0 | - | 159 | asn1_length_decode(struct asn1_ctx *ctx, unsigned int *def, unsigned int *len) |
| 160 | { | |||
| 161 | unsigned char ch, cnt; | |||
| 162 | ||||
| 0 | 0 | - | 163 | if (!asn1_octet_decode(ctx, &ch)) |
| 0 | - | 164 | return 0; | |
| 165 | ||||
| 0 | 0 | - | 166 | if (ch == 0x80) |
| 167 | *def = 0; | |||
| 168 | else { | |||
| 169 | *def = 1; | |||
| 170 | ||||
| 0 | 0 | - | 171 | if (ch < 0x80) |
| 172 | *len = ch; | |||
| 173 | else { | |||
| 174 | cnt = (unsigned char) (ch & 0x7F); | |||
| 175 | *len = 0; | |||
| 176 | ||||
| 0 | 0 | - | 177 | while (cnt > 0) { |
| 0 | 0 | - | 178 | if (!asn1_octet_decode(ctx, &ch)) |
| 0 | - | 179 | return 0; | |
| 180 | *len <<= 8; | |||
| 181 | *len |= ch; | |||
| 182 | cnt--; | |||
| 183 | } | |||
| 184 | } | |||
| 185 | } | |||
| 0 | - | 186 | return 1; | |
| 187 | } | |||
| 188 | ||||
| 189 | static unsigned char | |||
| 0 | 0 | - | 190 | asn1_header_decode(struct asn1_ctx *ctx, |
| 191 | unsigned char **eoc, | |||
| 192 | unsigned int *cls, unsigned int *con, unsigned int *tag) | |||
| 193 | { | |||
| 194 | unsigned int def = 0; | |||
| 195 | unsigned int len = 0; | |||
| 196 | ||||
| 0 | 0 | - | 197 | if (!asn1_id_decode(ctx, cls, con, tag)) |
| 0 | - | 198 | return 0; | |
| 199 | ||||
| 0 | 0 | - | 200 | if (!asn1_length_decode(ctx, &def, &len)) |
| 0 | - | 201 | return 0; | |
| 202 | ||||
| 0 | 0 | - | 203 | if (def) |
| 204 | *eoc = ctx->pointer + len; | |||
| 205 | else | |||
| 206 | *eoc = NULL; | |||
| 0 | - | 207 | return 1; | |
| 208 | } | |||
| 209 | ||||
| 210 | static unsigned char | |||
| 0 | 0 | - | 211 | asn1_eoc_decode(struct asn1_ctx *ctx, unsigned char *eoc) |
| 212 | { | |||
| 213 | unsigned char ch; | |||
| 214 | ||||
| 0 | 0 | - | 215 | if (eoc == NULL) { |
| 0 | 0 | - | 216 | if (!asn1_octet_decode(ctx, &ch)) |
| 0 | - | 217 | return 0; | |
| 218 | ||||
| 0 | 0 | - | 219 | if (ch != 0x00) { |
| 220 | ctx->error = ASN1_ERR_DEC_EOC_MISMATCH; | |||
| 0 | - | 221 | return 0; | |
| 222 | } | |||
| 223 | ||||
| 0 | 0 | - | 224 | if (!asn1_octet_decode(ctx, &ch)) |
| 0 | - | 225 | return 0; | |
| 226 | ||||
| 0 | 0 | - | 227 | if (ch != 0x00) { |
| 228 | ctx->error = ASN1_ERR_DEC_EOC_MISMATCH; | |||
| 0 | - | 229 | return 0; | |
| 230 | } | |||
| 0 | - | 231 | return 1; | |
| 232 | } else { | |||
| 0 | 0 | - | 233 | if (ctx->pointer != eoc) { |
| 234 | ctx->error = ASN1_ERR_DEC_LENGTH_MISMATCH; | |||
| 0 | - | 235 | return 0; | |
| 236 | } | |||
| 0 | - | 237 | return 1; | |
| 238 | } | |||
| 239 | } | |||
| 240 | ||||
| 241 | /* static unsigned char asn1_null_decode(struct asn1_ctx *ctx, | |||
| 242 | unsigned char *eoc) | |||
| 243 | { | |||
| 244 | ctx->pointer = eoc; | |||
| 245 | return 1; | |||
| 246 | } | |||
| 247 | ||||
| 248 | static unsigned char asn1_long_decode(struct asn1_ctx *ctx, | |||
| 249 | unsigned char *eoc, long *integer) | |||
| 250 | { | |||
| 251 | unsigned char ch; | |||
| 252 | unsigned int len; | |||
| 253 | ||||
| 254 | if (!asn1_octet_decode(ctx, &ch)) | |||
| 255 | return 0; | |||
| 256 | ||||
| 257 | *integer = (signed char) ch; | |||
| 258 | len = 1; | |||
| 259 | ||||
| 260 | while (ctx->pointer < eoc) { | |||
| 261 | if (++len > sizeof(long)) { | |||
| 262 | ctx->error = ASN1_ERR_DEC_BADVALUE; | |||
| 263 | return 0; | |||
| 264 | } | |||
| 265 | ||||
| 266 | if (!asn1_octet_decode(ctx, &ch)) | |||
| 267 | return 0; | |||
| 268 | ||||
| 269 | *integer <<= 8; | |||
| 270 | *integer |= ch; | |||
| 271 | } | |||
| 272 | return 1; | |||
| 273 | } | |||
| 274 | ||||
| 275 | static unsigned char asn1_uint_decode(struct asn1_ctx *ctx, | |||
| 276 | unsigned char *eoc, | |||
| 277 | unsigned int *integer) | |||
| 278 | { | |||
| 279 | unsigned char ch; | |||
| 280 | unsigned int len; | |||
| 281 | ||||
| 282 | if (!asn1_octet_decode(ctx, &ch)) | |||
| 283 | return 0; | |||
| 284 | ||||
| 285 | *integer = ch; | |||
| 286 | if (ch == 0) | |||
| 287 | len = 0; | |||
| 288 | else | |||
| 289 | len = 1; | |||
| 290 | ||||
| 291 | while (ctx->pointer < eoc) { | |||
| 292 | if (++len > sizeof(unsigned int)) { | |||
| 293 | ctx->error = ASN1_ERR_DEC_BADVALUE; | |||
| 294 | return 0; | |||
| 295 | } | |||
| 296 | ||||
| 297 | if (!asn1_octet_decode(ctx, &ch)) | |||
| 298 | return 0; | |||
| 299 | ||||
| 300 | *integer <<= 8; | |||
| 301 | *integer |= ch; | |||
| 302 | } | |||
| 303 | return 1; | |||
| 304 | } | |||
| 305 | ||||
| 306 | static unsigned char asn1_ulong_decode(struct asn1_ctx *ctx, | |||
| 307 | unsigned char *eoc, | |||
| 308 | unsigned long *integer) | |||
| 309 | { | |||
| 310 | unsigned char ch; | |||
| 311 | unsigned int len; | |||
| 312 | ||||
| 313 | if (!asn1_octet_decode(ctx, &ch)) | |||
| 314 | return 0; | |||
| 315 | ||||
| 316 | *integer = ch; | |||
| 317 | if (ch == 0) | |||
| 318 | len = 0; | |||
| 319 | else | |||
| 320 | len = 1; | |||
| 321 | ||||
| 322 | while (ctx->pointer < eoc) { | |||
| 323 | if (++len > sizeof(unsigned long)) { | |||
| 324 | ctx->error = ASN1_ERR_DEC_BADVALUE; | |||
| 325 | return 0; | |||
| 326 | } | |||
| 327 | ||||
| 328 | if (!asn1_octet_decode(ctx, &ch)) | |||
| 329 | return 0; | |||
| 330 | ||||
| 331 | *integer <<= 8; | |||
| 332 | *integer |= ch; | |||
| 333 | } | |||
| 334 | return 1; | |||
| 335 | } | |||
| 336 | ||||
| 337 | static unsigned char | |||
| 338 | asn1_octets_decode(struct asn1_ctx *ctx, | |||
| 339 | unsigned char *eoc, | |||
| 340 | unsigned char **octets, unsigned int *len) | |||
| 341 | { | |||
| 342 | unsigned char *ptr; | |||
| 343 | ||||
| 344 | *len = 0; | |||
| 345 | ||||
| 346 | *octets = kmalloc(eoc - ctx->pointer, GFP_ATOMIC); | |||
| 347 | if (*octets == NULL) { | |||
| 348 | return 0; | |||
| 349 | } | |||
| 350 | ||||
| 351 | ptr = *octets; | |||
| 352 | while (ctx->pointer < eoc) { | |||
| 353 | if (!asn1_octet_decode(ctx, (unsigned char *) ptr++)) { | |||
| 354 | kfree(*octets); | |||
| 355 | *octets = NULL; | |||
| 356 | return 0; | |||
| 357 | } | |||
| 358 | (*len)++; | |||
| 359 | } | |||
| 360 | return 1; | |||
| 361 | } */ | |||
| 362 | ||||
| 363 | static unsigned char | |||
| 0 | 0 | - | 364 | asn1_subid_decode(struct asn1_ctx *ctx, unsigned long *subid) |
| 365 | { | |||
| 366 | unsigned char ch; | |||
| 367 | ||||
| 368 | *subid = 0; | |||
| 369 | ||||
| 370 | do { | |||
| 0 | 0 | - | 371 | if (!asn1_octet_decode(ctx, &ch)) |
| 0 | - | 372 | return 0; | |
| 373 | ||||
| 374 | *subid <<= 7; | |||
| 375 | *subid |= ch & 0x7F; | |||
| 0 | 0 | - | 376 | } while ((ch & 0x80) == 0x80); |
| 0 | - | 377 | return 1; | |
| 378 | } | |||
| 379 | ||||
| 380 | static int | |||
| 0 | 0 | - | 381 | asn1_oid_decode(struct asn1_ctx *ctx, |
| 382 | unsigned char *eoc, unsigned long **oid, unsigned int *len) | |||
| 383 | { | |||
| 384 | unsigned long subid; | |||
| 385 | unsigned int size; | |||
| 386 | unsigned long *optr; | |||
| 387 | ||||
| 388 | size = eoc - ctx->pointer + 1; | |||
| 389 | *oid = kmalloc(size * sizeof (unsigned long), GFP_ATOMIC); | |||
| 0 | 0 | - | 390 | if (*oid == NULL) { |
| 0 | - | 391 | return 0; | |
| 392 | } | |||
| 393 | ||||
| 394 | optr = *oid; | |||
| 395 | ||||
| 0 | 0 | - | 396 | if (!asn1_subid_decode(ctx, &subid)) { |
| 397 | kfree(*oid); | |||
| 398 | *oid = NULL; | |||
| 0 | - | 399 | return 0; | |
| 400 | } | |||
| 401 | ||||
| 0 | 0 | - | 402 | if (subid < 40) { |
| 403 | optr[0] = 0; | |||
| 404 | optr[1] = subid; | |||
| 0 | 0 | - | 405 | } else if (subid < 80) { |
| 406 | optr[0] = 1; | |||
| 407 | optr[1] = subid - 40; | |||
| 408 | } else { | |||
| 409 | optr[0] = 2; | |||
| 410 | optr[1] = subid - 80; | |||
| 411 | } | |||
| 412 | ||||
| 413 | *len = 2; | |||
| 414 | optr += 2; | |||
| 415 | ||||
| 0 | 0 | - | 416 | while (ctx->pointer < eoc) { |
| 0 | 0 | - | 417 | if (++(*len) > size) { |
| 418 | ctx->error = ASN1_ERR_DEC_BADVALUE; | |||
| 419 | kfree(*oid); | |||
| 420 | *oid = NULL; | |||
| 0 | - | 421 | return 0; | |
| 422 | } | |||
| 423 | ||||
| 0 | 0 | - | 424 | if (!asn1_subid_decode(ctx, optr++)) { |
| 425 | kfree(*oid); | |||
| 426 | *oid = NULL; | |||
| 0 | - | 427 | return 0; | |
| 428 | } | |||
| 429 | } | |||
| 0 | - | 430 | return 1; | |
| 431 | } | |||
| 432 | ||||
| 433 | static int | |||
| 0 | 0 | - | 434 | compare_oid(unsigned long *oid1, unsigned int oid1len, |
| 435 | unsigned long *oid2, unsigned int oid2len) | |||
| 436 | { | |||
| 437 | unsigned int i; | |||
| 438 | ||||
| 0 | 0 | - | 439 | if (oid1len != oid2len) |
| 0 | - | 440 | return 0; | |
| 441 | else { | |||
| 0 | 0 | - | 442 | for (i = 0; i < oid1len; i++) { |
| 0 | 0 | - | 443 | if (oid1[i] != oid2[i]) |
| 0 | - | 444 | return 0; | |
| 445 | } | |||
| 0 | - | 446 | return 1; | |
| 447 | } | |||
| 448 | } | |||
| 449 | ||||
| 450 | /* BB check for endian conversion issues here */ | |||
| 451 | ||||
| 452 | int | |||
| 0 | 0 | - | 453 | decode_negTokenInit(unsigned char *security_blob, int length, |
| 454 | enum securityEnum *secType) | |||
| 455 | { | |||
| 456 | struct asn1_ctx ctx; | |||
| 457 | unsigned char *end; | |||
| 458 | unsigned char *sequence_end; | |||
| 459 | unsigned long *oid = NULL; | |||
| 460 | unsigned int cls, con, tag, oidlen, rc; | |||
| 461 | int use_ntlmssp = FALSE; | |||
| 462 | ||||
| 463 | *secType = NTLM; /* BB eventually make Kerberos or NLTMSSP the default */ | |||
| 464 | ||||
| 465 | /* cifs_dump_mem(" Received SecBlob ", security_blob, length); */ | |||
| 466 | ||||
| 467 | asn1_open(&ctx, security_blob, length); | |||
| 468 | ||||
| 0 | 0 | - | 469 | if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { |
| 0 | 0 | - | 470 | cFYI(1, ("Error decoding negTokenInit header ")); |
| 0 | 0 | - | 470 | if (cifsFYI & 0x01) |
| 0 | - | 471 | return 0; | |
| 472 | } else if ((cls != ASN1_APL) || (con != ASN1_CON) | |||
| 0 | 0 | - | 473 | || (tag != ASN1_EOC)) { |
| 0 | - | 473 | (T) || (_) || (_) | |
| 0 | - | 473 | (F) || (T) || (_) | |
| 0 | - | 473 | (F) || (F) || (T) | |
| 0 | - | 473 | (F) || (F) || (F) | |
| 0 | 0 | - | 474 | cFYI(1, ("cls = %d con = %d tag = %d", cls, con, tag)); |
| 0 | 0 | - | 474 | if (cifsFYI & 0x01) |
| 0 | - | 475 | return 0; | |
| 476 | } else { | |||
| 477 | /* remember to free obj->oid */ | |||
| 478 | rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag); | |||
| 0 | 0 | - | 479 | if (rc) { |
| 0 | 0 | - | 480 | if ((tag == ASN1_OJI) && (cls == ASN1_PRI)) { |
| 0 | - | 480 | (T) && (T) | |
| 0 | - | 480 | (T) && (F) | |
| 0 | - | 480 | (F) && (_) | |
| 481 | rc = asn1_oid_decode(&ctx, end, &oid, &oidlen); | |||
| 0 | 0 | - | 482 | if (rc) { |
| 483 | rc = compare_oid(oid, oidlen, | |||
| 484 | SPNEGO_OID, | |||
| 485 | SPNEGO_OID_LEN); | |||
| 486 | kfree(oid); | |||
| 487 | } | |||
| 488 | } else | |||
| 489 | rc = 0; | |||
| 490 | } | |||
| 491 | ||||
| 0 | 0 | - | 492 | if (!rc) { |
| 0 | 0 | - | 493 | cFYI(1, ("Error decoding negTokenInit header")); |
| 0 | 0 | - | 493 | if (cifsFYI & 0x01) |
| 0 | - | 494 | return 0; | |
| 495 | } | |||
| 496 | ||||
| 0 | 0 | - | 497 | if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { |
| 0 | 0 | - | 498 | cFYI(1, ("Error decoding negTokenInit ")); |
| 0 | 0 | - | 498 | if (cifsFYI & 0x01) |
| 0 | - | 499 | return 0; | |
| 500 | } else if ((cls != ASN1_CTX) || (con != ASN1_CON) | |||
| 0 | 0 | - | 501 | || (tag != ASN1_EOC)) { |
| 0 | - | 501 | (T) || (_) || (_) | |
| 0 | - | 501 | (F) || (T) || (_) | |
| 0 | - | 501 | (F) || (F) || (T) | |
| 0 | - | 501 | (F) || (F) || (F) | |
| 0 | 0 | - | 502 | cFYI(1,("cls = %d con = %d tag = %d end = %p (%d) exit 0", |
| 0 | 0 | - | 502 | if (cifsFYI & 0x01) |
| 503 | cls, con, tag, end, *end)); | |||
| 0 | - | 504 | return 0; | |
| 505 | } | |||
| 506 | ||||
| 0 | 0 | - | 507 | if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { |
| 0 | 0 | - | 508 | cFYI(1, ("Error decoding negTokenInit ")); |
| 0 | 0 | - | 508 | if (cifsFYI & 0x01) |
| 0 | - | 509 | return 0; | |
| 510 | } else if ((cls != ASN1_UNI) || (con != ASN1_CON) | |||
| 0 | 0 | - | 511 | || (tag != ASN1_SEQ)) { |
| 0 | - | 511 | (T) || (_) || (_) | |
| 0 | - | 511 | (F) || (T) || (_) | |
| 0 | - | 511 | (F) || (F) || (T) | |
| 0 | - | 511 | (F) || (F) || (F) | |
| 0 | 0 | - | 512 | cFYI(1,("cls = %d con = %d tag = %d end = %p (%d) exit 1", |
| 0 | 0 | - | 512 | if (cifsFYI & 0x01) |
| 513 | cls, con, tag, end, *end)); | |||
| 0 | - | 514 | return 0; | |
| 515 | } | |||
| 516 | ||||
| 0 | 0 | - | 517 | if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { |
| 0 | 0 | - | 518 | cFYI(1, ("Error decoding 2nd part of negTokenInit ")); |
| 0 | 0 | - | 518 | if (cifsFYI & 0x01) |
| 0 | ||||