Mercurial > hg > nginx-quic
annotate src/http/v3/ngx_http_v3_parse.c @ 7950:b0e81f49d7c0 quic
HTTP/3: fixed prefixed integer encoding and decoding.
Previously bytes were ordered from MSB to LSB, but the right order is the
reverse.
| author | Roman Arutyunyan <arut@nginx.com> |
|---|---|
| date | Thu, 02 Jul 2020 15:15:55 +0300 |
| parents | 032cb35ce758 |
| children | c9538aef3211 |
| rev | line source |
|---|---|
| 7692 | 1 |
| 2 /* | |
| 3 * Copyright (C) Roman Arutyunyan | |
| 4 * Copyright (C) Nginx, Inc. | |
| 5 */ | |
| 6 | |
| 7 | |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_http.h> | |
| 11 | |
| 12 | |
| 13 ngx_int_t | |
| 14 ngx_http_v3_parse_varlen_int(ngx_connection_t *c, | |
| 15 ngx_http_v3_parse_varlen_int_t *st, u_char ch) | |
| 16 { | |
| 17 enum { | |
| 18 sw_start = 0, | |
| 19 sw_length_2, | |
| 20 sw_length_3, | |
| 21 sw_length_4, | |
| 22 sw_length_5, | |
| 23 sw_length_6, | |
| 24 sw_length_7, | |
| 25 sw_length_8 | |
| 26 }; | |
| 27 | |
| 28 switch (st->state) { | |
| 29 | |
| 30 case sw_start: | |
| 31 | |
| 32 st->value = ch; | |
| 33 if (st->value & 0xc0) { | |
| 34 st->state = sw_length_2; | |
| 35 break; | |
| 36 } | |
| 37 | |
| 38 goto done; | |
| 39 | |
| 40 case sw_length_2: | |
| 41 | |
| 42 st->value = (st->value << 8) + ch; | |
| 43 if ((st->value & 0xc000) == 0x4000) { | |
| 44 st->value &= 0x3fff; | |
| 45 goto done; | |
| 46 } | |
| 47 | |
| 48 st->state = sw_length_3; | |
| 49 break; | |
| 50 | |
| 51 case sw_length_4: | |
| 52 | |
| 53 st->value = (st->value << 8) + ch; | |
| 54 if ((st->value & 0xc0000000) == 0x80000000) { | |
| 55 st->value &= 0x3fffffff; | |
| 56 goto done; | |
| 57 } | |
| 58 | |
| 59 st->state = sw_length_5; | |
| 60 break; | |
| 61 | |
| 62 case sw_length_3: | |
| 63 case sw_length_5: | |
| 64 case sw_length_6: | |
| 65 case sw_length_7: | |
| 66 | |
| 67 st->value = (st->value << 8) + ch; | |
| 68 st->state++; | |
| 69 break; | |
| 70 | |
| 71 case sw_length_8: | |
| 72 | |
| 73 st->value = (st->value << 8) + ch; | |
| 74 st->value &= 0x3fffffffffffffff; | |
| 75 goto done; | |
| 76 } | |
| 77 | |
| 78 return NGX_AGAIN; | |
| 79 | |
| 80 done: | |
| 81 | |
| 82 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 83 "http3 parse varlen int %uL", st->value); | |
| 84 | |
| 85 st->state = sw_start; | |
| 86 return NGX_DONE; | |
| 87 } | |
| 88 | |
| 89 | |
| 90 ngx_int_t | |
| 91 ngx_http_v3_parse_prefix_int(ngx_connection_t *c, | |
| 92 ngx_http_v3_parse_prefix_int_t *st, ngx_uint_t prefix, u_char ch) | |
| 93 { | |
|
7950
b0e81f49d7c0
HTTP/3: fixed prefixed integer encoding and decoding.
Roman Arutyunyan <arut@nginx.com>
parents:
7949
diff
changeset
|
94 ngx_uint_t mask; |
| 7692 | 95 enum { |
| 96 sw_start = 0, | |
| 97 sw_value | |
| 98 }; | |
| 99 | |
| 100 switch (st->state) { | |
| 101 | |
| 102 case sw_start: | |
| 103 | |
|
7950
b0e81f49d7c0
HTTP/3: fixed prefixed integer encoding and decoding.
Roman Arutyunyan <arut@nginx.com>
parents:
7949
diff
changeset
|
104 mask = (1 << prefix) - 1; |
|
b0e81f49d7c0
HTTP/3: fixed prefixed integer encoding and decoding.
Roman Arutyunyan <arut@nginx.com>
parents:
7949
diff
changeset
|
105 st->value = ch & mask; |
| 7692 | 106 |
|
7950
b0e81f49d7c0
HTTP/3: fixed prefixed integer encoding and decoding.
Roman Arutyunyan <arut@nginx.com>
parents:
7949
diff
changeset
|
107 if (st->value != mask) { |
| 7692 | 108 goto done; |
| 109 } | |
| 110 | |
|
7950
b0e81f49d7c0
HTTP/3: fixed prefixed integer encoding and decoding.
Roman Arutyunyan <arut@nginx.com>
parents:
7949
diff
changeset
|
111 st->shift = 0; |
| 7692 | 112 st->state = sw_value; |
| 113 break; | |
| 114 | |
| 115 case sw_value: | |
| 116 | |
|
7950
b0e81f49d7c0
HTTP/3: fixed prefixed integer encoding and decoding.
Roman Arutyunyan <arut@nginx.com>
parents:
7949
diff
changeset
|
117 st->value += (ch & 0x7f) << st->shift; |
| 7692 | 118 if (ch & 0x80) { |
|
7950
b0e81f49d7c0
HTTP/3: fixed prefixed integer encoding and decoding.
Roman Arutyunyan <arut@nginx.com>
parents:
7949
diff
changeset
|
119 st->shift += 7; |
| 7692 | 120 break; |
| 121 } | |
| 122 | |
| 123 goto done; | |
| 124 } | |
| 125 | |
| 126 return NGX_AGAIN; | |
| 127 | |
| 128 done: | |
| 129 | |
| 130 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 131 "http3 parse prefix int %uL", st->value); | |
| 132 | |
| 133 st->state = sw_start; | |
| 134 return NGX_DONE; | |
| 135 } | |
| 136 | |
| 137 | |
| 138 ngx_int_t | |
| 139 ngx_http_v3_parse_headers(ngx_connection_t *c, ngx_http_v3_parse_headers_t *st, | |
| 140 u_char ch) | |
| 141 { | |
| 142 ngx_int_t rc; | |
| 143 enum { | |
| 144 sw_start = 0, | |
| 145 sw_length, | |
| 146 sw_prefix, | |
| 147 sw_header_rep, | |
| 148 sw_done | |
| 149 }; | |
| 150 | |
| 151 switch (st->state) { | |
| 152 | |
| 153 case sw_start: | |
| 154 | |
| 155 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse headers"); | |
| 156 | |
| 157 if (ch != NGX_HTTP_V3_FRAME_HEADERS) { | |
| 158 return NGX_ERROR; | |
| 159 } | |
| 160 | |
| 161 st->state = sw_length; | |
| 162 break; | |
| 163 | |
| 164 case sw_length: | |
| 165 | |
| 166 if (ngx_http_v3_parse_varlen_int(c, &st->vlint, ch) != NGX_DONE) { | |
| 167 break; | |
| 168 } | |
| 169 | |
| 170 st->length = st->vlint.value; | |
| 171 | |
| 172 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 173 "http3 parse headers len:%ui", st->length); | |
| 174 | |
| 175 st->state = sw_prefix; | |
| 176 break; | |
| 177 | |
| 178 case sw_prefix: | |
| 179 | |
| 180 if (st->length-- == 0) { | |
| 181 return NGX_ERROR; | |
| 182 } | |
| 183 | |
| 184 rc = ngx_http_v3_parse_header_block_prefix(c, &st->prefix, ch); | |
| 185 | |
| 186 if (rc == NGX_ERROR) { | |
| 187 return NGX_ERROR; | |
| 188 } | |
| 189 | |
| 190 if (rc != NGX_DONE) { | |
| 191 break; | |
| 192 } | |
| 193 | |
| 194 if (st->length == 0) { | |
| 195 return NGX_ERROR; | |
| 196 } | |
| 197 | |
| 198 st->state = sw_header_rep; | |
| 199 break; | |
| 200 | |
| 201 case sw_header_rep: | |
| 202 | |
| 203 rc = ngx_http_v3_parse_header_rep(c, &st->header_rep, st->prefix.base, | |
| 204 ch); | |
| 205 | |
| 206 if (rc == NGX_ERROR) { | |
| 207 return NGX_ERROR; | |
| 208 } | |
| 209 | |
| 210 if (--st->length == 0) { | |
| 211 if (rc != NGX_DONE) { | |
| 212 return NGX_ERROR; | |
| 213 } | |
| 214 | |
| 215 goto done; | |
| 216 } | |
| 217 | |
| 218 if (rc == NGX_DONE) { | |
| 219 return NGX_OK; | |
| 220 } | |
| 221 | |
| 222 break; | |
| 223 } | |
| 224 | |
| 225 return NGX_AGAIN; | |
| 226 | |
| 227 done: | |
| 228 | |
| 229 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse headers done"); | |
| 230 | |
| 231 st->state = sw_start; | |
| 232 return NGX_DONE; | |
| 233 } | |
| 234 | |
| 235 | |
| 236 ngx_int_t | |
| 237 ngx_http_v3_parse_header_block_prefix(ngx_connection_t *c, | |
| 238 ngx_http_v3_parse_header_block_prefix_t *st, u_char ch) | |
| 239 { | |
| 240 enum { | |
| 241 sw_start = 0, | |
| 242 sw_req_insert_count, | |
| 243 sw_delta_base, | |
| 244 sw_read_delta_base | |
| 245 }; | |
| 246 | |
| 247 switch (st->state) { | |
| 248 | |
| 249 case sw_start: | |
| 250 | |
| 251 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 252 "http3 parse header block prefix"); | |
| 253 | |
| 254 st->state = sw_req_insert_count; | |
| 255 | |
| 256 /* fall through */ | |
| 257 | |
| 258 case sw_req_insert_count: | |
| 259 | |
| 260 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 8, ch) != NGX_DONE) { | |
| 261 break; | |
| 262 } | |
| 263 | |
| 264 st->insert_count = st->pint.value; | |
| 265 st->state = sw_delta_base; | |
| 266 break; | |
| 267 | |
| 268 case sw_delta_base: | |
| 269 | |
| 270 st->sign = (ch & 0x80) ? 1 : 0; | |
| 271 st->state = sw_read_delta_base; | |
| 272 | |
| 273 /* fall through */ | |
| 274 | |
| 275 case sw_read_delta_base: | |
| 276 | |
| 277 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 7, ch) != NGX_DONE) { | |
| 278 break; | |
| 279 } | |
| 280 | |
| 281 st->delta_base = st->pint.value; | |
| 282 goto done; | |
| 283 } | |
| 284 | |
| 285 return NGX_AGAIN; | |
| 286 | |
| 287 done: | |
| 288 | |
| 289 if (st->sign) { | |
| 290 st->base = st->insert_count - st->delta_base - 1; | |
| 291 } else { | |
| 292 st->base = st->insert_count + st->delta_base; | |
| 293 } | |
| 294 | |
| 295 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 296 "http3 parse header block prefix done " | |
| 297 "i:%ui, s:%ui, d:%ui, base:%uL", | |
| 298 st->insert_count, st->sign, st->delta_base, st->base); | |
| 299 | |
| 300 st->state = sw_start; | |
| 301 return NGX_DONE; | |
| 302 } | |
| 303 | |
| 304 | |
| 305 ngx_int_t | |
| 306 ngx_http_v3_parse_header_rep(ngx_connection_t *c, | |
| 307 ngx_http_v3_parse_header_rep_t *st, ngx_uint_t base, u_char ch) | |
| 308 { | |
| 309 ngx_int_t rc; | |
| 310 enum { | |
| 311 sw_start = 0, | |
| 312 sw_header_ri, | |
| 313 sw_header_lri, | |
| 314 sw_header_l, | |
| 315 sw_header_pbi, | |
| 316 sw_header_lpbi | |
| 317 }; | |
| 318 | |
| 319 if (st->state == sw_start) { | |
| 320 | |
| 321 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 322 "http3 parse header representation"); | |
| 323 | |
| 324 ngx_memzero(&st->header, sizeof(ngx_http_v3_parse_header_t)); | |
| 325 | |
| 326 st->header.base = base; | |
| 327 | |
| 328 if (ch & 0x80) { | |
| 329 /* Indexed Header Field */ | |
| 330 | |
| 331 st->state = sw_header_ri; | |
| 332 | |
| 333 } else if (ch & 0x40) { | |
| 334 /* Literal Header Field With Name Reference */ | |
| 335 | |
| 336 st->state = sw_header_lri; | |
| 337 | |
| 338 } else if (ch & 0x20) { | |
| 339 /* Literal Header Field Without Name Reference */ | |
| 340 | |
| 341 st->state = sw_header_l; | |
| 342 | |
| 343 } else if (ch & 0x10) { | |
| 344 /* Indexed Header Field With Post-Base Index */ | |
| 345 | |
| 346 st->state = sw_header_pbi; | |
| 347 | |
| 348 } else { | |
| 349 /* Literal Header Field With Post-Base Name Reference */ | |
| 350 | |
| 351 st->state = sw_header_lpbi; | |
| 352 } | |
| 353 } | |
| 354 | |
| 355 switch (st->state) { | |
| 356 | |
| 357 case sw_header_ri: | |
| 358 rc = ngx_http_v3_parse_header_ri(c, &st->header, ch); | |
| 359 break; | |
| 360 | |
| 361 case sw_header_lri: | |
| 362 rc = ngx_http_v3_parse_header_lri(c, &st->header, ch); | |
| 363 break; | |
| 364 | |
| 365 case sw_header_l: | |
| 366 rc = ngx_http_v3_parse_header_l(c, &st->header, ch); | |
| 367 break; | |
| 368 | |
| 369 case sw_header_pbi: | |
| 370 rc = ngx_http_v3_parse_header_pbi(c, &st->header, ch); | |
| 371 break; | |
| 372 | |
| 373 case sw_header_lpbi: | |
| 374 rc = ngx_http_v3_parse_header_lpbi(c, &st->header, ch); | |
| 375 break; | |
| 376 | |
| 377 default: | |
| 378 rc = NGX_OK; | |
| 379 } | |
| 380 | |
| 381 if (rc == NGX_ERROR) { | |
| 382 return NGX_ERROR; | |
| 383 } | |
| 384 | |
| 385 if (rc == NGX_AGAIN) { | |
| 386 return NGX_AGAIN; | |
| 387 } | |
| 388 | |
| 389 /* rc == NGX_DONE */ | |
| 390 | |
| 391 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 392 "http3 parse header representation done"); | |
| 393 | |
| 394 st->state = sw_start; | |
| 395 return NGX_DONE; | |
| 396 } | |
| 397 | |
| 398 | |
| 399 ngx_int_t | |
| 400 ngx_http_v3_parse_literal(ngx_connection_t *c, ngx_http_v3_parse_literal_t *st, | |
| 401 u_char ch) | |
| 402 { | |
|
7949
032cb35ce758
HTTP/3: http3_max_field_size directive to limit string size.
Roman Arutyunyan <arut@nginx.com>
parents:
7761
diff
changeset
|
403 ngx_uint_t n; |
|
032cb35ce758
HTTP/3: http3_max_field_size directive to limit string size.
Roman Arutyunyan <arut@nginx.com>
parents:
7761
diff
changeset
|
404 ngx_http_v3_srv_conf_t *v3cf; |
| 7692 | 405 enum { |
| 406 sw_start = 0, | |
| 407 sw_value | |
| 408 }; | |
| 409 | |
| 410 switch (st->state) { | |
| 411 | |
| 412 case sw_start: | |
| 413 | |
| 414 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 415 "http3 parse literal huff:%ui, len:%ui", | |
| 416 st->huffman, st->length); | |
| 417 | |
| 418 n = st->length; | |
| 419 | |
|
7949
032cb35ce758
HTTP/3: http3_max_field_size directive to limit string size.
Roman Arutyunyan <arut@nginx.com>
parents:
7761
diff
changeset
|
420 v3cf = ngx_http_v3_get_module_srv_conf(c, ngx_http_v3_module); |
|
032cb35ce758
HTTP/3: http3_max_field_size directive to limit string size.
Roman Arutyunyan <arut@nginx.com>
parents:
7761
diff
changeset
|
421 |
|
032cb35ce758
HTTP/3: http3_max_field_size directive to limit string size.
Roman Arutyunyan <arut@nginx.com>
parents:
7761
diff
changeset
|
422 if (n > v3cf->max_field_size) { |
|
032cb35ce758
HTTP/3: http3_max_field_size directive to limit string size.
Roman Arutyunyan <arut@nginx.com>
parents:
7761
diff
changeset
|
423 ngx_log_error(NGX_LOG_ERR, c->log, 0, |
|
032cb35ce758
HTTP/3: http3_max_field_size directive to limit string size.
Roman Arutyunyan <arut@nginx.com>
parents:
7761
diff
changeset
|
424 "client exceeded http3_max_field_size limit"); |
|
032cb35ce758
HTTP/3: http3_max_field_size directive to limit string size.
Roman Arutyunyan <arut@nginx.com>
parents:
7761
diff
changeset
|
425 return NGX_ERROR; |
|
032cb35ce758
HTTP/3: http3_max_field_size directive to limit string size.
Roman Arutyunyan <arut@nginx.com>
parents:
7761
diff
changeset
|
426 } |
|
032cb35ce758
HTTP/3: http3_max_field_size directive to limit string size.
Roman Arutyunyan <arut@nginx.com>
parents:
7761
diff
changeset
|
427 |
| 7692 | 428 if (st->huffman) { |
| 429 n = n * 8 / 5; | |
| 430 st->huffstate = 0; | |
| 431 } | |
| 432 | |
| 433 st->last = ngx_pnalloc(c->pool, n + 1); | |
| 434 if (st->last == NULL) { | |
| 435 return NGX_ERROR; | |
| 436 } | |
| 437 | |
| 438 st->value.data = st->last; | |
| 439 st->state = sw_value; | |
| 440 | |
| 441 /* fall through */ | |
| 442 | |
| 443 case sw_value: | |
| 444 | |
| 445 if (st->huffman) { | |
| 446 if (ngx_http_v2_huff_decode(&st->huffstate, &ch, 1, &st->last, | |
| 447 st->length == 1, c->log) | |
| 448 != NGX_OK) | |
| 449 { | |
| 450 return NGX_ERROR; | |
| 451 } | |
| 452 | |
| 453 } else { | |
| 454 *st->last++ = ch; | |
| 455 } | |
| 456 | |
| 457 if (--st->length) { | |
| 458 break; | |
| 459 } | |
| 460 | |
| 461 st->value.len = st->last - st->value.data; | |
| 462 *st->last = '\0'; | |
| 463 goto done; | |
| 464 } | |
| 465 | |
| 466 return NGX_AGAIN; | |
| 467 | |
| 468 done: | |
| 469 | |
| 470 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 471 "http3 parse literal done \"%V\"", &st->value); | |
| 472 | |
| 473 st->state = sw_start; | |
| 474 return NGX_DONE; | |
| 475 } | |
| 476 | |
| 477 | |
| 478 ngx_int_t | |
| 479 ngx_http_v3_parse_header_ri(ngx_connection_t *c, ngx_http_v3_parse_header_t *st, | |
| 480 u_char ch) | |
| 481 { | |
| 482 ngx_http_v3_header_t *h; | |
| 483 enum { | |
| 484 sw_start = 0, | |
| 485 sw_index | |
| 486 }; | |
| 487 | |
| 488 switch (st->state) { | |
| 489 | |
| 490 case sw_start: | |
| 491 | |
| 492 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse header ri"); | |
| 493 | |
| 494 st->dynamic = (ch & 0x40) ? 0 : 1; | |
| 495 st->state = sw_index; | |
| 496 | |
| 497 /* fall through */ | |
| 498 | |
| 499 case sw_index: | |
| 500 | |
| 501 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 6, ch) != NGX_DONE) { | |
| 502 break; | |
| 503 } | |
| 504 | |
| 505 st->index = st->pint.value; | |
| 506 goto done; | |
| 507 } | |
| 508 | |
| 509 return NGX_AGAIN; | |
| 510 | |
| 511 done: | |
| 512 | |
| 513 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 514 "http3 parse header ri done %s%ui]", | |
| 515 st->dynamic ? "dynamic[-" : "static[", st->index); | |
| 516 | |
| 517 if (st->dynamic) { | |
| 518 st->index = st->base - st->index - 1; | |
| 519 } | |
| 520 | |
| 521 h = ngx_http_v3_lookup_table(c, st->dynamic, st->index); | |
| 522 if (h == NULL) { | |
| 523 return NGX_ERROR; | |
| 524 } | |
| 525 | |
| 526 st->name = h->name; | |
| 527 st->value = h->value; | |
| 528 st->state = sw_start; | |
| 529 | |
| 530 return NGX_DONE; | |
| 531 } | |
| 532 | |
| 533 | |
| 534 ngx_int_t | |
| 535 ngx_http_v3_parse_header_lri(ngx_connection_t *c, | |
| 536 ngx_http_v3_parse_header_t *st, u_char ch) | |
| 537 { | |
| 538 ngx_int_t rc; | |
| 539 ngx_http_v3_header_t *h; | |
| 540 enum { | |
| 541 sw_start = 0, | |
| 542 sw_index, | |
| 543 sw_value_len, | |
| 544 sw_read_value_len, | |
| 545 sw_value | |
| 546 }; | |
| 547 | |
| 548 switch (st->state) { | |
| 549 | |
| 550 case sw_start: | |
| 551 | |
| 552 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse header lri"); | |
| 553 | |
| 554 st->dynamic = (ch & 0x10) ? 0 : 1; | |
| 555 st->state = sw_index; | |
| 556 | |
| 557 /* fall through */ | |
| 558 | |
| 559 case sw_index: | |
| 560 | |
| 561 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 4, ch) != NGX_DONE) { | |
| 562 break; | |
| 563 } | |
| 564 | |
| 565 st->index = st->pint.value; | |
| 566 st->state = sw_value_len; | |
| 567 break; | |
| 568 | |
| 569 case sw_value_len: | |
| 570 | |
| 571 st->literal.huffman = (ch & 0x80) ? 1 : 0; | |
| 572 st->state = sw_read_value_len; | |
| 573 | |
| 574 /* fall through */ | |
| 575 | |
| 576 case sw_read_value_len: | |
| 577 | |
| 578 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 7, ch) != NGX_DONE) { | |
| 579 break; | |
| 580 } | |
| 581 | |
| 582 st->literal.length = st->pint.value; | |
| 583 if (st->literal.length == 0) { | |
| 584 goto done; | |
| 585 } | |
| 586 | |
| 587 st->state = sw_value; | |
| 588 break; | |
| 589 | |
| 590 case sw_value: | |
| 591 | |
| 592 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
| 593 | |
| 594 if (rc == NGX_ERROR) { | |
| 595 return NGX_ERROR; | |
| 596 } | |
| 597 | |
| 598 if (rc == NGX_DONE) { | |
| 599 st->value = st->literal.value; | |
| 600 goto done; | |
| 601 } | |
| 602 | |
| 603 break; | |
| 604 } | |
| 605 | |
| 606 return NGX_AGAIN; | |
| 607 | |
| 608 done: | |
| 609 | |
| 610 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 611 "http3 parse header lri done %s%ui] \"%V\"", | |
| 612 st->dynamic ? "dynamic[-" : "static[", | |
| 613 st->index, &st->value); | |
| 614 | |
| 615 if (st->dynamic) { | |
| 616 st->index = st->base - st->index - 1; | |
| 617 } | |
| 618 | |
| 619 h = ngx_http_v3_lookup_table(c, st->dynamic, st->index); | |
| 620 if (h == NULL) { | |
| 621 return NGX_ERROR; | |
| 622 } | |
| 623 | |
| 624 st->name = h->name; | |
| 625 st->state = sw_start; | |
| 626 return NGX_DONE; | |
| 627 } | |
| 628 | |
| 629 | |
| 630 ngx_int_t | |
| 631 ngx_http_v3_parse_header_l(ngx_connection_t *c, | |
| 632 ngx_http_v3_parse_header_t *st, u_char ch) | |
| 633 { | |
| 634 ngx_int_t rc; | |
| 635 enum { | |
| 636 sw_start = 0, | |
| 637 sw_name_len, | |
| 638 sw_name, | |
| 639 sw_value_len, | |
| 640 sw_read_value_len, | |
| 641 sw_value | |
| 642 }; | |
| 643 | |
| 644 switch (st->state) { | |
| 645 | |
| 646 case sw_start: | |
| 647 | |
| 648 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse header l"); | |
| 649 | |
| 650 st->literal.huffman = (ch & 0x08) ? 1 : 0; | |
| 651 st->state = sw_name_len; | |
| 652 | |
| 653 /* fall through */ | |
| 654 | |
| 655 case sw_name_len: | |
| 656 | |
| 657 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 3, ch) != NGX_DONE) { | |
| 658 break; | |
| 659 } | |
| 660 | |
| 661 st->literal.length = st->pint.value; | |
| 662 if (st->literal.length == 0) { | |
| 663 return NGX_ERROR; | |
| 664 } | |
| 665 | |
| 666 st->state = sw_name; | |
| 667 break; | |
| 668 | |
| 669 case sw_name: | |
| 670 | |
| 671 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
| 672 | |
| 673 if (rc == NGX_ERROR) { | |
| 674 return NGX_ERROR; | |
| 675 } | |
| 676 | |
| 677 if (rc == NGX_DONE) { | |
| 678 st->name = st->literal.value; | |
| 679 st->state = sw_value_len; | |
| 680 } | |
| 681 | |
| 682 break; | |
| 683 | |
| 684 case sw_value_len: | |
| 685 | |
| 686 st->literal.huffman = (ch & 0x80) ? 1 : 0; | |
| 687 st->state = sw_read_value_len; | |
| 688 | |
| 689 /* fall through */ | |
| 690 | |
| 691 case sw_read_value_len: | |
| 692 | |
| 693 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 7, ch) != NGX_DONE) { | |
| 694 break; | |
| 695 } | |
| 696 | |
| 697 st->literal.length = st->pint.value; | |
| 698 if (st->literal.length == 0) { | |
| 699 goto done; | |
| 700 } | |
| 701 | |
| 702 st->state = sw_value; | |
| 703 break; | |
| 704 | |
| 705 case sw_value: | |
| 706 | |
| 707 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
| 708 | |
| 709 if (rc == NGX_ERROR) { | |
| 710 return NGX_ERROR; | |
| 711 } | |
| 712 | |
| 713 if (rc == NGX_DONE) { | |
| 714 st->value = st->literal.value; | |
| 715 goto done; | |
| 716 } | |
| 717 | |
| 718 break; | |
| 719 } | |
| 720 | |
| 721 return NGX_AGAIN; | |
| 722 | |
| 723 done: | |
| 724 | |
| 725 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 726 "http3 parse header l done \"%V\" \"%V\"", | |
| 727 &st->name, &st->value); | |
| 728 | |
| 729 st->state = sw_start; | |
| 730 return NGX_DONE; | |
| 731 } | |
| 732 | |
| 733 | |
| 734 ngx_int_t | |
| 735 ngx_http_v3_parse_header_pbi(ngx_connection_t *c, | |
| 736 ngx_http_v3_parse_header_t *st, u_char ch) | |
| 737 { | |
| 738 ngx_http_v3_header_t *h; | |
| 739 enum { | |
| 740 sw_start = 0, | |
| 741 sw_index | |
| 742 }; | |
| 743 | |
| 744 switch (st->state) { | |
| 745 | |
| 746 case sw_start: | |
| 747 | |
| 748 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse header pbi"); | |
| 749 | |
| 750 st->state = sw_index; | |
| 751 | |
| 752 /* fall through */ | |
| 753 | |
| 754 case sw_index: | |
| 755 | |
| 756 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 4, ch) != NGX_DONE) { | |
| 757 break; | |
| 758 } | |
| 759 | |
| 760 st->index = st->pint.value; | |
| 761 goto done; | |
| 762 } | |
| 763 | |
| 764 return NGX_AGAIN; | |
| 765 | |
| 766 done: | |
| 767 | |
| 768 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 769 "http3 parse header pbi done dynamic[+%ui]", st->index); | |
| 770 | |
| 771 h = ngx_http_v3_lookup_table(c, 1, st->base + st->index); | |
| 772 if (h == NULL) { | |
| 773 return NGX_ERROR; | |
| 774 } | |
| 775 | |
| 776 st->name = h->name; | |
| 777 st->value = h->value; | |
| 778 st->state = sw_start; | |
| 779 return NGX_DONE; | |
| 780 } | |
| 781 | |
| 782 | |
| 783 ngx_int_t | |
| 784 ngx_http_v3_parse_header_lpbi(ngx_connection_t *c, | |
| 785 ngx_http_v3_parse_header_t *st, u_char ch) | |
| 786 { | |
| 787 ngx_int_t rc; | |
| 788 ngx_http_v3_header_t *h; | |
| 789 enum { | |
| 790 sw_start = 0, | |
| 791 sw_index, | |
| 792 sw_value_len, | |
| 793 sw_read_value_len, | |
| 794 sw_value | |
| 795 }; | |
| 796 | |
| 797 switch (st->state) { | |
| 798 | |
| 799 case sw_start: | |
| 800 | |
| 801 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 802 "http3 parse header lpbi"); | |
| 803 | |
| 804 st->state = sw_index; | |
| 805 | |
| 806 /* fall through */ | |
| 807 | |
| 808 case sw_index: | |
| 809 | |
| 810 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 3, ch) != NGX_DONE) { | |
| 811 break; | |
| 812 } | |
| 813 | |
| 814 st->index = st->pint.value; | |
| 815 st->state = sw_value_len; | |
| 816 break; | |
| 817 | |
| 818 case sw_value_len: | |
| 819 | |
| 820 st->literal.huffman = (ch & 0x80) ? 1 : 0; | |
| 821 st->state = sw_read_value_len; | |
| 822 | |
| 823 /* fall through */ | |
| 824 | |
| 825 case sw_read_value_len: | |
| 826 | |
| 827 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 7, ch) != NGX_DONE) { | |
| 828 break; | |
| 829 } | |
| 830 | |
| 831 st->literal.length = st->pint.value; | |
| 832 if (st->literal.length == 0) { | |
| 833 goto done; | |
| 834 } | |
| 835 | |
| 836 st->state = sw_value; | |
| 837 break; | |
| 838 | |
| 839 case sw_value: | |
| 840 | |
| 841 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
| 842 | |
| 843 if (rc == NGX_ERROR) { | |
| 844 return NGX_ERROR; | |
| 845 } | |
| 846 | |
| 847 if (rc == NGX_DONE) { | |
| 848 st->value = st->literal.value; | |
| 849 goto done; | |
| 850 } | |
| 851 | |
| 852 break; | |
| 853 } | |
| 854 | |
| 855 return NGX_AGAIN; | |
| 856 | |
| 857 done: | |
| 858 | |
| 859 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 860 "http3 parse header lpbi done dynamic[+%ui] \"%V\"", | |
| 861 st->index, &st->value); | |
| 862 | |
| 863 h = ngx_http_v3_lookup_table(c, 1, st->base + st->index); | |
| 864 if (h == NULL) { | |
| 865 return NGX_ERROR; | |
| 866 } | |
| 867 | |
| 868 st->name = h->name; | |
| 869 st->state = sw_start; | |
| 870 return NGX_DONE; | |
| 871 } | |
| 872 | |
| 873 | |
| 874 ngx_int_t | |
| 875 ngx_http_v3_parse_control(ngx_connection_t *c, void *data, u_char ch) | |
| 876 { | |
| 877 ngx_http_v3_parse_control_t *st = data; | |
| 878 | |
| 879 ngx_int_t rc; | |
| 880 enum { | |
| 881 sw_start = 0, | |
| 882 sw_type, | |
| 883 sw_length, | |
| 884 sw_settings, | |
| 885 sw_max_push_id, | |
| 886 sw_skip | |
| 887 }; | |
| 888 | |
| 889 switch (st->state) { | |
| 890 | |
| 891 case sw_start: | |
| 892 | |
| 893 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse control"); | |
| 894 | |
| 895 st->state = sw_type; | |
| 896 | |
| 897 /* fall through */ | |
| 898 | |
| 899 case sw_type: | |
| 900 | |
| 901 if (ngx_http_v3_parse_varlen_int(c, &st->vlint, ch) != NGX_DONE) { | |
| 902 break; | |
| 903 } | |
| 904 | |
| 905 st->type = st->vlint.value; | |
| 906 | |
| 907 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 908 "http3 parse frame type:%ui", st->type); | |
| 909 | |
| 910 st->state = sw_length; | |
| 911 break; | |
| 912 | |
| 913 case sw_length: | |
| 914 | |
| 915 if (ngx_http_v3_parse_varlen_int(c, &st->vlint, ch) != NGX_DONE) { | |
| 916 break; | |
| 917 } | |
| 918 | |
| 919 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 920 "http3 parse frame len:%uL", st->vlint.value); | |
| 921 | |
| 922 st->length = st->vlint.value; | |
| 923 if (st->length == 0) { | |
| 924 st->state = sw_type; | |
| 925 break; | |
| 926 } | |
| 927 | |
| 928 switch (st->type) { | |
| 929 | |
| 930 case NGX_HTTP_V3_FRAME_SETTINGS: | |
| 931 st->state = sw_settings; | |
| 932 break; | |
| 933 | |
| 934 case NGX_HTTP_V3_FRAME_MAX_PUSH_ID: | |
| 935 st->state = sw_max_push_id; | |
| 936 break; | |
| 937 | |
| 938 default: | |
| 939 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 940 "http3 parse skip unknown frame"); | |
| 941 st->state = sw_skip; | |
| 942 } | |
| 943 | |
| 944 break; | |
| 945 | |
| 946 case sw_settings: | |
| 947 | |
| 948 rc = ngx_http_v3_parse_settings(c, &st->settings, ch); | |
| 949 | |
| 950 if (rc == NGX_ERROR) { | |
| 951 return NGX_ERROR; | |
| 952 } | |
| 953 | |
| 954 if (--st->length > 0) { | |
| 955 break; | |
| 956 } | |
| 957 | |
| 958 if (rc != NGX_DONE) { | |
| 959 return NGX_ERROR; | |
| 960 } | |
| 961 | |
| 962 st->state = sw_type; | |
| 963 break; | |
| 964 | |
| 965 case sw_max_push_id: | |
| 966 | |
| 967 if (ngx_http_v3_parse_varlen_int(c, &st->vlint, ch) != NGX_DONE) { | |
| 968 break; | |
| 969 } | |
| 970 | |
| 971 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 972 "http3 parse MAX_PUSH_ID:%uL", st->vlint.value); | |
| 973 | |
| 974 st->state = sw_type; | |
| 975 break; | |
| 976 | |
| 977 case sw_skip: | |
| 978 | |
| 979 if (--st->length == 0) { | |
| 980 st->state = sw_type; | |
| 981 } | |
| 982 | |
| 983 break; | |
| 984 } | |
| 985 | |
| 986 return NGX_AGAIN; | |
| 987 } | |
| 988 | |
| 989 | |
| 990 ngx_int_t | |
| 991 ngx_http_v3_parse_settings(ngx_connection_t *c, | |
| 992 ngx_http_v3_parse_settings_t *st, u_char ch) | |
| 993 { | |
| 994 enum { | |
| 995 sw_start = 0, | |
| 996 sw_id, | |
| 997 sw_value | |
| 998 }; | |
| 999 | |
| 1000 switch (st->state) { | |
| 1001 | |
| 1002 case sw_start: | |
| 1003 | |
| 1004 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse settings"); | |
| 1005 | |
| 1006 st->state = sw_id; | |
| 1007 | |
| 1008 /* fall through */ | |
| 1009 | |
| 1010 case sw_id: | |
| 1011 | |
| 1012 if (ngx_http_v3_parse_varlen_int(c, &st->vlint, ch) != NGX_DONE) { | |
| 1013 break; | |
| 1014 } | |
| 1015 | |
| 1016 st->id = st->vlint.value; | |
| 1017 st->state = sw_value; | |
| 1018 break; | |
| 1019 | |
| 1020 case sw_value: | |
| 1021 | |
| 1022 if (ngx_http_v3_parse_varlen_int(c, &st->vlint, ch) != NGX_DONE) { | |
| 1023 break; | |
| 1024 } | |
| 1025 | |
| 1026 if (ngx_http_v3_set_param(c, st->id, st->vlint.value) != NGX_OK) { | |
| 1027 return NGX_ERROR; | |
| 1028 } | |
| 1029 | |
| 1030 goto done; | |
| 1031 } | |
| 1032 | |
| 1033 return NGX_AGAIN; | |
| 1034 | |
| 1035 done: | |
| 1036 | |
| 1037 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse settings done"); | |
| 1038 | |
| 1039 st->state = sw_start; | |
| 1040 return NGX_DONE; | |
| 1041 } | |
| 1042 | |
| 1043 | |
| 1044 ngx_int_t | |
| 1045 ngx_http_v3_parse_encoder(ngx_connection_t *c, void *data, u_char ch) | |
| 1046 { | |
| 1047 ngx_http_v3_parse_encoder_t *st = data; | |
| 1048 | |
| 1049 ngx_int_t rc; | |
| 1050 enum { | |
| 1051 sw_start = 0, | |
| 1052 sw_inr, | |
| 1053 sw_iwnr, | |
| 1054 sw_capacity, | |
| 1055 sw_duplicate | |
| 1056 }; | |
| 1057 | |
| 1058 if (st->state == sw_start) { | |
| 1059 | |
| 1060 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1061 "http3 parse encoder instruction"); | |
| 1062 | |
| 1063 if (ch & 0x80) { | |
| 1064 /* Insert With Name Reference */ | |
| 1065 | |
| 1066 st->state = sw_inr; | |
| 1067 | |
| 1068 } else if (ch & 0x40) { | |
| 1069 /* Insert Without Name Reference */ | |
| 1070 | |
| 1071 st->state = sw_iwnr; | |
| 1072 | |
| 1073 } else if (ch & 0x20) { | |
| 1074 /* Set Dynamic Table Capacity */ | |
| 1075 | |
| 1076 st->state = sw_capacity; | |
| 1077 | |
| 1078 } else { | |
| 1079 /* Duplicate */ | |
| 1080 | |
| 1081 st->state = sw_duplicate; | |
| 1082 } | |
| 1083 } | |
| 1084 | |
| 1085 switch (st->state) { | |
| 1086 | |
| 1087 case sw_inr: | |
| 1088 | |
| 1089 rc = ngx_http_v3_parse_header_inr(c, &st->header, ch); | |
| 1090 | |
| 1091 if (rc == NGX_ERROR) { | |
| 1092 return NGX_ERROR; | |
| 1093 } | |
| 1094 | |
| 1095 if (rc != NGX_DONE) { | |
| 1096 break; | |
| 1097 } | |
| 1098 | |
| 1099 goto done; | |
| 1100 | |
| 1101 case sw_iwnr: | |
| 1102 | |
| 1103 rc = ngx_http_v3_parse_header_iwnr(c, &st->header, ch); | |
| 1104 | |
| 1105 if (rc == NGX_ERROR) { | |
| 1106 return NGX_ERROR; | |
| 1107 } | |
| 1108 | |
| 1109 if (rc != NGX_DONE) { | |
| 1110 break; | |
| 1111 } | |
| 1112 | |
| 1113 goto done; | |
| 1114 | |
| 1115 case sw_capacity: | |
| 1116 | |
| 1117 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 5, ch) != NGX_DONE) { | |
| 1118 break; | |
| 1119 } | |
| 1120 | |
| 1121 if (ngx_http_v3_set_capacity(c, st->pint.value) != NGX_OK) { | |
| 1122 return NGX_ERROR; | |
| 1123 } | |
| 1124 | |
| 1125 goto done; | |
| 1126 | |
| 1127 case sw_duplicate: | |
| 1128 | |
| 1129 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 5, ch) != NGX_DONE) { | |
| 1130 break; | |
| 1131 } | |
| 1132 | |
| 1133 if (ngx_http_v3_duplicate(c, st->pint.value) != NGX_OK) { | |
| 1134 return NGX_ERROR; | |
| 1135 } | |
| 1136 | |
| 1137 goto done; | |
| 1138 } | |
| 1139 | |
| 1140 return NGX_AGAIN; | |
| 1141 | |
| 1142 done: | |
| 1143 | |
| 1144 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1145 "http3 parse encoder instruction done"); | |
| 1146 | |
| 1147 st->state = sw_start; | |
| 1148 return NGX_DONE; | |
| 1149 } | |
| 1150 | |
| 1151 | |
| 1152 ngx_int_t | |
| 1153 ngx_http_v3_parse_header_inr(ngx_connection_t *c, | |
| 1154 ngx_http_v3_parse_header_t *st, u_char ch) | |
| 1155 { | |
| 1156 ngx_int_t rc; | |
| 1157 enum { | |
| 1158 sw_start = 0, | |
| 1159 sw_name_index, | |
| 1160 sw_value_len, | |
| 1161 sw_read_value_len, | |
| 1162 sw_value | |
| 1163 }; | |
| 1164 | |
| 1165 switch (st->state) { | |
| 1166 | |
| 1167 case sw_start: | |
| 1168 | |
| 1169 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse header inr"); | |
| 1170 | |
| 1171 st->dynamic = (ch & 0x40) ? 0 : 1; | |
| 1172 st->state = sw_name_index; | |
| 1173 | |
| 1174 /* fall through */ | |
| 1175 | |
| 1176 case sw_name_index: | |
| 1177 | |
| 1178 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 6, ch) != NGX_DONE) { | |
| 1179 break; | |
| 1180 } | |
| 1181 | |
| 1182 st->index = st->pint.value; | |
| 1183 st->state = sw_value_len; | |
| 1184 break; | |
| 1185 | |
| 1186 case sw_value_len: | |
| 1187 | |
| 1188 st->literal.huffman = (ch & 0x80) ? 1 : 0; | |
| 1189 st->state = sw_read_value_len; | |
| 1190 | |
| 1191 /* fall through */ | |
| 1192 | |
| 1193 case sw_read_value_len: | |
| 1194 | |
| 1195 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 7, ch) != NGX_DONE) { | |
| 1196 break; | |
| 1197 } | |
| 1198 | |
| 1199 st->literal.length = st->pint.value; | |
| 1200 if (st->literal.length == 0) { | |
| 1201 goto done; | |
| 1202 } | |
| 1203 | |
| 1204 st->state = sw_value; | |
| 1205 break; | |
| 1206 | |
| 1207 case sw_value: | |
| 1208 | |
| 1209 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
| 1210 | |
| 1211 if (rc == NGX_ERROR) { | |
| 1212 return NGX_ERROR; | |
| 1213 } | |
| 1214 | |
| 1215 if (rc == NGX_DONE) { | |
| 1216 st->value = st->literal.value; | |
| 1217 goto done; | |
| 1218 } | |
| 1219 | |
| 1220 break; | |
| 1221 } | |
| 1222 | |
| 1223 return NGX_AGAIN; | |
| 1224 | |
| 1225 done: | |
| 1226 | |
| 1227 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1228 "http3 parse header inr done %s[%ui] \"%V\"", | |
| 1229 st->dynamic ? "dynamic" : "static", | |
| 1230 st->index, &st->value); | |
| 1231 | |
| 1232 if (ngx_http_v3_ref_insert(c, st->dynamic, st->index, &st->value) != NGX_OK) | |
| 1233 { | |
| 1234 return NGX_ERROR; | |
| 1235 } | |
| 1236 | |
| 1237 st->state = sw_start; | |
| 1238 return NGX_DONE; | |
| 1239 } | |
| 1240 | |
| 1241 | |
| 1242 ngx_int_t | |
| 1243 ngx_http_v3_parse_header_iwnr(ngx_connection_t *c, | |
| 1244 ngx_http_v3_parse_header_t *st, u_char ch) | |
| 1245 { | |
| 1246 ngx_int_t rc; | |
| 1247 enum { | |
| 1248 sw_start = 0, | |
| 1249 sw_name_len, | |
| 1250 sw_name, | |
| 1251 sw_value_len, | |
| 1252 sw_read_value_len, | |
| 1253 sw_value | |
| 1254 }; | |
| 1255 | |
| 1256 switch (st->state) { | |
| 1257 | |
| 1258 case sw_start: | |
| 1259 | |
| 1260 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1261 "http3 parse header iwnr"); | |
| 1262 | |
| 1263 st->literal.huffman = (ch & 0x20) ? 1 : 0; | |
| 1264 st->state = sw_name_len; | |
| 1265 | |
| 1266 /* fall through */ | |
| 1267 | |
| 1268 case sw_name_len: | |
| 1269 | |
| 1270 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 5, ch) != NGX_DONE) { | |
| 1271 break; | |
| 1272 } | |
| 1273 | |
| 1274 st->literal.length = st->pint.value; | |
| 1275 if (st->literal.length == 0) { | |
| 1276 return NGX_ERROR; | |
| 1277 } | |
| 1278 | |
| 1279 st->state = sw_name; | |
| 1280 break; | |
| 1281 | |
| 1282 case sw_name: | |
| 1283 | |
| 1284 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
| 1285 | |
| 1286 if (rc == NGX_ERROR) { | |
| 1287 return NGX_ERROR; | |
| 1288 } | |
| 1289 | |
| 1290 if (rc == NGX_DONE) { | |
| 1291 st->name = st->literal.value; | |
| 1292 st->state = sw_value_len; | |
| 1293 } | |
| 1294 | |
| 1295 break; | |
| 1296 | |
| 1297 case sw_value_len: | |
| 1298 | |
| 1299 st->literal.huffman = (ch & 0x80) ? 1 : 0; | |
| 1300 st->state = sw_read_value_len; | |
| 1301 | |
| 1302 /* fall through */ | |
| 1303 | |
| 1304 case sw_read_value_len: | |
| 1305 | |
| 1306 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 7, ch) != NGX_DONE) { | |
| 1307 break; | |
| 1308 } | |
| 1309 | |
| 1310 st->literal.length = st->pint.value; | |
| 1311 if (st->literal.length == 0) { | |
| 1312 goto done; | |
| 1313 } | |
| 1314 | |
| 1315 st->state = sw_value; | |
| 1316 break; | |
| 1317 | |
| 1318 case sw_value: | |
| 1319 | |
| 1320 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
| 1321 | |
| 1322 if (rc == NGX_ERROR) { | |
| 1323 return NGX_ERROR; | |
| 1324 } | |
| 1325 | |
| 1326 if (rc == NGX_DONE) { | |
| 1327 st->value = st->literal.value; | |
| 1328 goto done; | |
| 1329 } | |
| 1330 | |
| 1331 break; | |
| 1332 } | |
| 1333 | |
| 1334 return NGX_AGAIN; | |
| 1335 | |
| 1336 done: | |
| 1337 | |
| 1338 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1339 "http3 parse header iwnr done \"%V\":\"%V\"", | |
| 1340 &st->name, &st->value); | |
| 1341 | |
| 1342 if (ngx_http_v3_insert(c, &st->name, &st->value) != NGX_OK) { | |
| 1343 return NGX_ERROR; | |
| 1344 } | |
| 1345 | |
| 1346 st->state = sw_start; | |
| 1347 return NGX_DONE; | |
| 1348 } | |
| 1349 | |
| 1350 | |
| 1351 ngx_int_t | |
| 1352 ngx_http_v3_parse_decoder(ngx_connection_t *c, void *data, u_char ch) | |
| 1353 { | |
| 1354 ngx_http_v3_parse_decoder_t *st = data; | |
| 1355 | |
| 1356 enum { | |
| 1357 sw_start = 0, | |
| 1358 sw_ack_header, | |
| 1359 sw_cancel_stream, | |
| 1360 sw_inc_insert_count | |
| 1361 }; | |
| 1362 | |
| 1363 if (st->state == sw_start) { | |
| 1364 | |
| 1365 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1366 "http3 parse decoder instruction"); | |
| 1367 | |
| 1368 if (ch & 0x80) { | |
| 1369 /* Header Acknowledgement */ | |
| 1370 | |
| 1371 st->state = sw_ack_header; | |
| 1372 | |
| 1373 } else if (ch & 0x40) { | |
| 1374 /* Stream Cancellation */ | |
| 1375 | |
| 1376 st->state = sw_cancel_stream; | |
| 1377 | |
| 1378 } else { | |
| 1379 /* Insert Count Increment */ | |
| 1380 | |
| 1381 st->state = sw_inc_insert_count; | |
| 1382 } | |
| 1383 } | |
| 1384 | |
| 1385 switch (st->state) { | |
| 1386 | |
| 1387 case sw_ack_header: | |
| 1388 | |
| 1389 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 6, ch) != NGX_DONE) { | |
| 1390 break; | |
| 1391 } | |
| 1392 | |
| 1393 if (ngx_http_v3_ack_header(c, st->pint.value) != NGX_OK) { | |
| 1394 return NGX_ERROR; | |
| 1395 } | |
| 1396 | |
| 1397 goto done; | |
| 1398 | |
| 1399 case sw_cancel_stream: | |
| 1400 | |
| 1401 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 6, ch) != NGX_DONE) { | |
| 1402 break; | |
| 1403 } | |
| 1404 | |
| 1405 if (ngx_http_v3_cancel_stream(c, st->pint.value) != NGX_OK) { | |
| 1406 return NGX_ERROR; | |
| 1407 } | |
| 1408 | |
| 1409 goto done; | |
| 1410 | |
| 1411 case sw_inc_insert_count: | |
| 1412 | |
| 1413 if (ngx_http_v3_parse_prefix_int(c, &st->pint, 6, ch) != NGX_DONE) { | |
| 1414 break; | |
| 1415 } | |
| 1416 | |
| 1417 if (ngx_http_v3_inc_insert_count(c, st->pint.value) != NGX_OK) { | |
| 1418 return NGX_ERROR; | |
| 1419 } | |
| 1420 | |
| 1421 goto done; | |
| 1422 } | |
| 1423 | |
| 1424 return NGX_AGAIN; | |
| 1425 | |
| 1426 done: | |
| 1427 | |
| 1428 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1429 "http3 parse decoder instruction done"); | |
| 1430 | |
| 1431 st->state = sw_start; | |
| 1432 return NGX_DONE; | |
| 1433 } | |
|
7761
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1434 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1435 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1436 ngx_int_t |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1437 ngx_http_v3_parse_data(ngx_connection_t *c, ngx_http_v3_parse_data_t *st, |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1438 u_char ch) |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1439 { |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1440 enum { |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1441 sw_start = 0, |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1442 sw_type, |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1443 sw_length |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1444 }; |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1445 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1446 switch (st->state) { |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1447 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1448 case sw_start: |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1449 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1450 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse data"); |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1451 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1452 st->state = sw_type; |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1453 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1454 /* fall through */ |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1455 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1456 case sw_type: |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1457 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1458 if (ngx_http_v3_parse_varlen_int(c, &st->vlint, ch) != NGX_DONE) { |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1459 break; |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1460 } |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1461 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1462 if (st->vlint.value != NGX_HTTP_V3_FRAME_DATA) { |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1463 return NGX_ERROR; |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1464 } |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1465 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1466 st->state = sw_length; |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1467 break; |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1468 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1469 case sw_length: |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1470 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1471 if (ngx_http_v3_parse_varlen_int(c, &st->vlint, ch) != NGX_DONE) { |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1472 break; |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1473 } |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1474 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1475 st->length = st->vlint.value; |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1476 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1477 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1478 "http3 parse data frame len:%ui", st->length); |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1479 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1480 goto done; |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1481 } |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1482 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1483 return NGX_AGAIN; |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1484 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1485 done: |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1486 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1487 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse data done"); |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1488 |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1489 st->state = sw_start; |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1490 return NGX_DONE; |
|
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
7693
diff
changeset
|
1491 } |