Mercurial > hg > nginx
annotate src/http/v3/ngx_http_v3_parse.c @ 8630:279ad36f2f4b quic
QUIC: renamed c->qs to c->quic.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Tue, 10 Nov 2020 19:40:00 +0000 |
parents | 351d62300832 |
children | 5a92523e50d3 |
rev | line source |
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8226 | 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 | |
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13 #define ngx_http_v3_is_v2_frame(type) \ |
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14 ((type) == 0x02 || (type) == 0x06 || (type) == 0x08 || (type) == 0x09) |
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15 |
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16 |
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17 static ngx_int_t ngx_http_v3_parse_lookup(ngx_connection_t *c, |
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18 ngx_uint_t dynamic, ngx_uint_t index, ngx_str_t *name, ngx_str_t *value); |
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19 |
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20 |
8226 | 21 ngx_int_t |
22 ngx_http_v3_parse_varlen_int(ngx_connection_t *c, | |
23 ngx_http_v3_parse_varlen_int_t *st, u_char ch) | |
24 { | |
25 enum { | |
26 sw_start = 0, | |
27 sw_length_2, | |
28 sw_length_3, | |
29 sw_length_4, | |
30 sw_length_5, | |
31 sw_length_6, | |
32 sw_length_7, | |
33 sw_length_8 | |
34 }; | |
35 | |
36 switch (st->state) { | |
37 | |
38 case sw_start: | |
39 | |
40 st->value = ch; | |
41 if (st->value & 0xc0) { | |
42 st->state = sw_length_2; | |
43 break; | |
44 } | |
45 | |
46 goto done; | |
47 | |
48 case sw_length_2: | |
49 | |
50 st->value = (st->value << 8) + ch; | |
51 if ((st->value & 0xc000) == 0x4000) { | |
52 st->value &= 0x3fff; | |
53 goto done; | |
54 } | |
55 | |
56 st->state = sw_length_3; | |
57 break; | |
58 | |
59 case sw_length_4: | |
60 | |
61 st->value = (st->value << 8) + ch; | |
62 if ((st->value & 0xc0000000) == 0x80000000) { | |
63 st->value &= 0x3fffffff; | |
64 goto done; | |
65 } | |
66 | |
67 st->state = sw_length_5; | |
68 break; | |
69 | |
70 case sw_length_3: | |
71 case sw_length_5: | |
72 case sw_length_6: | |
73 case sw_length_7: | |
74 | |
75 st->value = (st->value << 8) + ch; | |
76 st->state++; | |
77 break; | |
78 | |
79 case sw_length_8: | |
80 | |
81 st->value = (st->value << 8) + ch; | |
82 st->value &= 0x3fffffffffffffff; | |
83 goto done; | |
84 } | |
85 | |
86 return NGX_AGAIN; | |
87 | |
88 done: | |
89 | |
90 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
91 "http3 parse varlen int %uL", st->value); | |
92 | |
93 st->state = sw_start; | |
94 return NGX_DONE; | |
95 } | |
96 | |
97 | |
98 ngx_int_t | |
99 ngx_http_v3_parse_prefix_int(ngx_connection_t *c, | |
100 ngx_http_v3_parse_prefix_int_t *st, ngx_uint_t prefix, u_char ch) | |
101 { | |
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102 ngx_uint_t mask; |
8226 | 103 enum { |
104 sw_start = 0, | |
105 sw_value | |
106 }; | |
107 | |
108 switch (st->state) { | |
109 | |
110 case sw_start: | |
111 | |
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112 mask = (1 << prefix) - 1; |
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113 st->value = ch & mask; |
8226 | 114 |
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115 if (st->value != mask) { |
8226 | 116 goto done; |
117 } | |
118 | |
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119 st->shift = 0; |
8226 | 120 st->state = sw_value; |
121 break; | |
122 | |
123 case sw_value: | |
124 | |
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125 st->value += (uint64_t) (ch & 0x7f) << st->shift; |
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126 |
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127 if (st->shift == 56 |
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128 && ((ch & 0x80) || (st->value & 0xc000000000000000))) |
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129 { |
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130 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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131 "client exceeded integer size limit"); |
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132 return NGX_HTTP_V3_ERR_EXCESSIVE_LOAD; |
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133 } |
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134 |
8226 | 135 if (ch & 0x80) { |
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136 st->shift += 7; |
8226 | 137 break; |
138 } | |
139 | |
140 goto done; | |
141 } | |
142 | |
143 return NGX_AGAIN; | |
144 | |
145 done: | |
146 | |
147 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
148 "http3 parse prefix int %uL", st->value); | |
149 | |
150 st->state = sw_start; | |
151 return NGX_DONE; | |
152 } | |
153 | |
154 | |
155 ngx_int_t | |
156 ngx_http_v3_parse_headers(ngx_connection_t *c, ngx_http_v3_parse_headers_t *st, | |
157 u_char ch) | |
158 { | |
159 ngx_int_t rc; | |
160 enum { | |
161 sw_start = 0, | |
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162 sw_type, |
8226 | 163 sw_length, |
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164 sw_skip, |
8226 | 165 sw_prefix, |
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166 sw_verify, |
8226 | 167 sw_header_rep, |
168 sw_done | |
169 }; | |
170 | |
171 switch (st->state) { | |
172 | |
173 case sw_start: | |
174 | |
175 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse headers"); | |
176 | |
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177 st->state = sw_type; |
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178 |
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179 /* fall through */ |
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180 |
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181 case sw_type: |
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182 |
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183 rc = ngx_http_v3_parse_varlen_int(c, &st->vlint, ch); |
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184 if (rc != NGX_DONE) { |
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185 return rc; |
8226 | 186 } |
187 | |
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188 st->type = st->vlint.value; |
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189 |
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190 if (ngx_http_v3_is_v2_frame(st->type)) { |
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191 return NGX_HTTP_V3_ERR_FRAME_UNEXPECTED; |
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192 } |
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193 |
8226 | 194 st->state = sw_length; |
195 break; | |
196 | |
197 case sw_length: | |
198 | |
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199 rc = ngx_http_v3_parse_varlen_int(c, &st->vlint, ch); |
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200 if (rc != NGX_DONE) { |
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201 return rc; |
8226 | 202 } |
203 | |
204 st->length = st->vlint.value; | |
205 | |
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206 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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207 "http3 parse headers type:%ui, len:%ui", |
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208 st->type, st->length); |
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209 |
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210 if (st->type != NGX_HTTP_V3_FRAME_HEADERS) { |
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211 st->state = st->length > 0 ? sw_skip : sw_type; |
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212 break; |
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213 } |
8226 | 214 |
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215 if (st->length == 0) { |
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216 return NGX_HTTP_V3_ERR_FRAME_ERROR; |
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217 } |
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218 |
8226 | 219 st->state = sw_prefix; |
220 break; | |
221 | |
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222 case sw_skip: |
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223 |
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224 if (--st->length == 0) { |
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225 st->state = sw_type; |
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226 } |
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227 |
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228 break; |
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229 |
8226 | 230 case sw_prefix: |
231 | |
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232 if (--st->length == 0) { |
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233 return NGX_HTTP_V3_ERR_FRAME_ERROR; |
8226 | 234 } |
235 | |
236 rc = ngx_http_v3_parse_header_block_prefix(c, &st->prefix, ch); | |
237 if (rc != NGX_DONE) { | |
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238 return rc; |
8226 | 239 } |
240 | |
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241 st->state = sw_verify; |
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242 break; |
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243 |
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244 case sw_verify: |
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245 |
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246 rc = ngx_http_v3_check_insert_count(c, st->prefix.insert_count); |
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247 if (rc != NGX_OK) { |
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248 return rc; |
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249 } |
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250 |
8226 | 251 st->state = sw_header_rep; |
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252 |
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253 /* fall through */ |
8226 | 254 |
255 case sw_header_rep: | |
256 | |
257 rc = ngx_http_v3_parse_header_rep(c, &st->header_rep, st->prefix.base, | |
258 ch); | |
259 | |
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260 if (--st->length == 0 && rc == NGX_AGAIN) { |
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261 return NGX_HTTP_V3_ERR_FRAME_ERROR; |
8226 | 262 } |
263 | |
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264 if (rc != NGX_DONE) { |
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265 return rc; |
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266 } |
8226 | 267 |
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268 if (st->length == 0) { |
8226 | 269 goto done; |
270 } | |
271 | |
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272 return NGX_OK; |
8226 | 273 } |
274 | |
275 return NGX_AGAIN; | |
276 | |
277 done: | |
278 | |
279 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse headers done"); | |
280 | |
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281 if (st->prefix.insert_count > 0) { |
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282 if (ngx_http_v3_client_ack_header(c, c->quic->id) != NGX_OK) { |
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283 return NGX_ERROR; |
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284 } |
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285 } |
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|
286 |
8226 | 287 st->state = sw_start; |
288 return NGX_DONE; | |
289 } | |
290 | |
291 | |
292 ngx_int_t | |
293 ngx_http_v3_parse_header_block_prefix(ngx_connection_t *c, | |
294 ngx_http_v3_parse_header_block_prefix_t *st, u_char ch) | |
295 { | |
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296 ngx_int_t rc; |
8226 | 297 enum { |
298 sw_start = 0, | |
299 sw_req_insert_count, | |
300 sw_delta_base, | |
301 sw_read_delta_base | |
302 }; | |
303 | |
304 switch (st->state) { | |
305 | |
306 case sw_start: | |
307 | |
308 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
309 "http3 parse header block prefix"); | |
310 | |
311 st->state = sw_req_insert_count; | |
312 | |
313 /* fall through */ | |
314 | |
315 case sw_req_insert_count: | |
316 | |
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317 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 8, ch); |
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318 if (rc != NGX_DONE) { |
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319 return rc; |
8226 | 320 } |
321 | |
322 st->insert_count = st->pint.value; | |
323 st->state = sw_delta_base; | |
324 break; | |
325 | |
326 case sw_delta_base: | |
327 | |
328 st->sign = (ch & 0x80) ? 1 : 0; | |
329 st->state = sw_read_delta_base; | |
330 | |
331 /* fall through */ | |
332 | |
333 case sw_read_delta_base: | |
334 | |
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335 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 7, ch); |
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336 if (rc != NGX_DONE) { |
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337 return rc; |
8226 | 338 } |
339 | |
340 st->delta_base = st->pint.value; | |
341 goto done; | |
342 } | |
343 | |
344 return NGX_AGAIN; | |
345 | |
346 done: | |
347 | |
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348 rc = ngx_http_v3_decode_insert_count(c, &st->insert_count); |
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349 if (rc != NGX_OK) { |
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350 return rc; |
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351 } |
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352 |
8226 | 353 if (st->sign) { |
354 st->base = st->insert_count - st->delta_base - 1; | |
355 } else { | |
356 st->base = st->insert_count + st->delta_base; | |
357 } | |
358 | |
359 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
360 "http3 parse header block prefix done " | |
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Fixed format specifiers.
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361 "insert_count:%ui, sign:%ui, delta_base:%ui, base:%ui", |
8226 | 362 st->insert_count, st->sign, st->delta_base, st->base); |
363 | |
364 st->state = sw_start; | |
365 return NGX_DONE; | |
366 } | |
367 | |
368 | |
369 ngx_int_t | |
370 ngx_http_v3_parse_header_rep(ngx_connection_t *c, | |
371 ngx_http_v3_parse_header_rep_t *st, ngx_uint_t base, u_char ch) | |
372 { | |
373 ngx_int_t rc; | |
374 enum { | |
375 sw_start = 0, | |
376 sw_header_ri, | |
377 sw_header_lri, | |
378 sw_header_l, | |
379 sw_header_pbi, | |
380 sw_header_lpbi | |
381 }; | |
382 | |
383 if (st->state == sw_start) { | |
384 | |
385 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
386 "http3 parse header representation"); | |
387 | |
388 ngx_memzero(&st->header, sizeof(ngx_http_v3_parse_header_t)); | |
389 | |
390 st->header.base = base; | |
391 | |
392 if (ch & 0x80) { | |
393 /* Indexed Header Field */ | |
394 | |
395 st->state = sw_header_ri; | |
396 | |
397 } else if (ch & 0x40) { | |
398 /* Literal Header Field With Name Reference */ | |
399 | |
400 st->state = sw_header_lri; | |
401 | |
402 } else if (ch & 0x20) { | |
403 /* Literal Header Field Without Name Reference */ | |
404 | |
405 st->state = sw_header_l; | |
406 | |
407 } else if (ch & 0x10) { | |
408 /* Indexed Header Field With Post-Base Index */ | |
409 | |
410 st->state = sw_header_pbi; | |
411 | |
412 } else { | |
413 /* Literal Header Field With Post-Base Name Reference */ | |
414 | |
415 st->state = sw_header_lpbi; | |
416 } | |
417 } | |
418 | |
419 switch (st->state) { | |
420 | |
421 case sw_header_ri: | |
422 rc = ngx_http_v3_parse_header_ri(c, &st->header, ch); | |
423 break; | |
424 | |
425 case sw_header_lri: | |
426 rc = ngx_http_v3_parse_header_lri(c, &st->header, ch); | |
427 break; | |
428 | |
429 case sw_header_l: | |
430 rc = ngx_http_v3_parse_header_l(c, &st->header, ch); | |
431 break; | |
432 | |
433 case sw_header_pbi: | |
434 rc = ngx_http_v3_parse_header_pbi(c, &st->header, ch); | |
435 break; | |
436 | |
437 case sw_header_lpbi: | |
438 rc = ngx_http_v3_parse_header_lpbi(c, &st->header, ch); | |
439 break; | |
440 | |
441 default: | |
442 rc = NGX_OK; | |
443 } | |
444 | |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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445 if (rc != NGX_DONE) { |
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|
446 return rc; |
8226 | 447 } |
448 | |
449 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
450 "http3 parse header representation done"); | |
451 | |
452 st->state = sw_start; | |
453 return NGX_DONE; | |
454 } | |
455 | |
456 | |
457 ngx_int_t | |
458 ngx_http_v3_parse_literal(ngx_connection_t *c, ngx_http_v3_parse_literal_t *st, | |
459 u_char ch) | |
460 { | |
8454
032cb35ce758
HTTP/3: http3_max_field_size directive to limit string size.
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|
461 ngx_uint_t n; |
8492
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HTTP/3: renamed server configuration variables from v3cf to h3scf.
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diff
changeset
|
462 ngx_http_v3_srv_conf_t *h3scf; |
8226 | 463 enum { |
464 sw_start = 0, | |
465 sw_value | |
466 }; | |
467 | |
468 switch (st->state) { | |
469 | |
470 case sw_start: | |
471 | |
472 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
473 "http3 parse literal huff:%ui, len:%ui", | |
474 st->huffman, st->length); | |
475 | |
476 n = st->length; | |
477 | |
8492
65c1fc5fae15
HTTP/3: renamed server configuration variables from v3cf to h3scf.
Roman Arutyunyan <arut@nginx.com>
parents:
8478
diff
changeset
|
478 h3scf = ngx_http_v3_get_module_srv_conf(c, ngx_http_v3_module); |
8454
032cb35ce758
HTTP/3: http3_max_field_size directive to limit string size.
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parents:
8295
diff
changeset
|
479 |
8492
65c1fc5fae15
HTTP/3: renamed server configuration variables from v3cf to h3scf.
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parents:
8478
diff
changeset
|
480 if (n > h3scf->max_field_size) { |
8457
a7f64438aa3c
HTTP/3: downgraded literal size error level to NGX_LOG_INFO.
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parents:
8456
diff
changeset
|
481 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
8454
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HTTP/3: http3_max_field_size directive to limit string size.
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parents:
8295
diff
changeset
|
482 "client exceeded http3_max_field_size limit"); |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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parents:
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diff
changeset
|
483 return NGX_HTTP_V3_ERR_EXCESSIVE_LOAD; |
8454
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parents:
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diff
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|
484 } |
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parents:
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diff
changeset
|
485 |
8226 | 486 if (st->huffman) { |
487 n = n * 8 / 5; | |
488 st->huffstate = 0; | |
489 } | |
490 | |
491 st->last = ngx_pnalloc(c->pool, n + 1); | |
492 if (st->last == NULL) { | |
493 return NGX_ERROR; | |
494 } | |
495 | |
496 st->value.data = st->last; | |
497 st->state = sw_value; | |
498 | |
499 /* fall through */ | |
500 | |
501 case sw_value: | |
502 | |
503 if (st->huffman) { | |
504 if (ngx_http_v2_huff_decode(&st->huffstate, &ch, 1, &st->last, | |
505 st->length == 1, c->log) | |
506 != NGX_OK) | |
507 { | |
508 return NGX_ERROR; | |
509 } | |
510 | |
511 } else { | |
512 *st->last++ = ch; | |
513 } | |
514 | |
515 if (--st->length) { | |
516 break; | |
517 } | |
518 | |
519 st->value.len = st->last - st->value.data; | |
520 *st->last = '\0'; | |
521 goto done; | |
522 } | |
523 | |
524 return NGX_AGAIN; | |
525 | |
526 done: | |
527 | |
528 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
529 "http3 parse literal done \"%V\"", &st->value); | |
530 | |
531 st->state = sw_start; | |
532 return NGX_DONE; | |
533 } | |
534 | |
535 | |
536 ngx_int_t | |
537 ngx_http_v3_parse_header_ri(ngx_connection_t *c, ngx_http_v3_parse_header_t *st, | |
538 u_char ch) | |
539 { | |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
changeset
|
540 ngx_int_t rc; |
8226 | 541 enum { |
542 sw_start = 0, | |
543 sw_index | |
544 }; | |
545 | |
546 switch (st->state) { | |
547 | |
548 case sw_start: | |
549 | |
550 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse header ri"); | |
551 | |
552 st->dynamic = (ch & 0x40) ? 0 : 1; | |
553 st->state = sw_index; | |
554 | |
555 /* fall through */ | |
556 | |
557 case sw_index: | |
558 | |
8464
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HTTP/3: limited prefixed integer size by 62 bits.
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changeset
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559 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 6, ch); |
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HTTP/3: limited prefixed integer size by 62 bits.
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diff
changeset
|
560 if (rc != NGX_DONE) { |
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HTTP/3: limited prefixed integer size by 62 bits.
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diff
changeset
|
561 return rc; |
8226 | 562 } |
563 | |
564 st->index = st->pint.value; | |
565 goto done; | |
566 } | |
567 | |
568 return NGX_AGAIN; | |
569 | |
570 done: | |
571 | |
572 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
573 "http3 parse header ri done %s%ui]", | |
574 st->dynamic ? "dynamic[-" : "static[", st->index); | |
575 | |
576 if (st->dynamic) { | |
577 st->index = st->base - st->index - 1; | |
578 } | |
579 | |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
changeset
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580 rc = ngx_http_v3_parse_lookup(c, st->dynamic, st->index, &st->name, |
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
changeset
|
581 &st->value); |
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changeset
|
582 if (rc != NGX_OK) { |
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diff
changeset
|
583 return rc; |
8226 | 584 } |
585 | |
586 st->state = sw_start; | |
587 return NGX_DONE; | |
588 } | |
589 | |
590 | |
591 ngx_int_t | |
592 ngx_http_v3_parse_header_lri(ngx_connection_t *c, | |
593 ngx_http_v3_parse_header_t *st, u_char ch) | |
594 { | |
8456
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HTTP/3: refactored dynamic table implementation.
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diff
changeset
|
595 ngx_int_t rc; |
8226 | 596 enum { |
597 sw_start = 0, | |
598 sw_index, | |
599 sw_value_len, | |
600 sw_read_value_len, | |
601 sw_value | |
602 }; | |
603 | |
604 switch (st->state) { | |
605 | |
606 case sw_start: | |
607 | |
608 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse header lri"); | |
609 | |
610 st->dynamic = (ch & 0x10) ? 0 : 1; | |
611 st->state = sw_index; | |
612 | |
613 /* fall through */ | |
614 | |
615 case sw_index: | |
616 | |
8464
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HTTP/3: limited prefixed integer size by 62 bits.
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parents:
8463
diff
changeset
|
617 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 4, ch); |
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HTTP/3: limited prefixed integer size by 62 bits.
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8463
diff
changeset
|
618 if (rc != NGX_DONE) { |
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HTTP/3: limited prefixed integer size by 62 bits.
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parents:
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diff
changeset
|
619 return rc; |
8226 | 620 } |
621 | |
622 st->index = st->pint.value; | |
623 st->state = sw_value_len; | |
624 break; | |
625 | |
626 case sw_value_len: | |
627 | |
628 st->literal.huffman = (ch & 0x80) ? 1 : 0; | |
629 st->state = sw_read_value_len; | |
630 | |
631 /* fall through */ | |
632 | |
633 case sw_read_value_len: | |
634 | |
8464
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HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
635 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 7, ch); |
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HTTP/3: limited prefixed integer size by 62 bits.
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diff
changeset
|
636 if (rc != NGX_DONE) { |
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diff
changeset
|
637 return rc; |
8226 | 638 } |
639 | |
640 st->literal.length = st->pint.value; | |
641 if (st->literal.length == 0) { | |
642 goto done; | |
643 } | |
644 | |
645 st->state = sw_value; | |
646 break; | |
647 | |
648 case sw_value: | |
649 | |
650 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
8465
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diff
changeset
|
651 if (rc != NGX_DONE) { |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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parents:
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diff
changeset
|
652 return rc; |
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
changeset
|
653 } |
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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parents:
8457
diff
changeset
|
654 |
8465
5611bbb852ce
HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
parents:
8464
diff
changeset
|
655 st->value = st->literal.value; |
5611bbb852ce
HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
parents:
8464
diff
changeset
|
656 goto done; |
8226 | 657 } |
658 | |
659 return NGX_AGAIN; | |
660 | |
661 done: | |
662 | |
663 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
664 "http3 parse header lri done %s%ui] \"%V\"", | |
665 st->dynamic ? "dynamic[-" : "static[", | |
666 st->index, &st->value); | |
667 | |
668 if (st->dynamic) { | |
669 st->index = st->base - st->index - 1; | |
670 } | |
671 | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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parents:
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diff
changeset
|
672 rc = ngx_http_v3_parse_lookup(c, st->dynamic, st->index, &st->name, NULL); |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
changeset
|
673 if (rc != NGX_OK) { |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
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|
674 return rc; |
8226 | 675 } |
676 | |
677 st->state = sw_start; | |
678 return NGX_DONE; | |
679 } | |
680 | |
681 | |
682 ngx_int_t | |
683 ngx_http_v3_parse_header_l(ngx_connection_t *c, | |
684 ngx_http_v3_parse_header_t *st, u_char ch) | |
685 { | |
686 ngx_int_t rc; | |
687 enum { | |
688 sw_start = 0, | |
689 sw_name_len, | |
690 sw_name, | |
691 sw_value_len, | |
692 sw_read_value_len, | |
693 sw_value | |
694 }; | |
695 | |
696 switch (st->state) { | |
697 | |
698 case sw_start: | |
699 | |
700 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse header l"); | |
701 | |
702 st->literal.huffman = (ch & 0x08) ? 1 : 0; | |
703 st->state = sw_name_len; | |
704 | |
705 /* fall through */ | |
706 | |
707 case sw_name_len: | |
708 | |
8464
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diff
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|
709 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 3, ch); |
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HTTP/3: limited prefixed integer size by 62 bits.
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diff
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|
710 if (rc != NGX_DONE) { |
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HTTP/3: limited prefixed integer size by 62 bits.
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diff
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|
711 return rc; |
8226 | 712 } |
713 | |
714 st->literal.length = st->pint.value; | |
715 if (st->literal.length == 0) { | |
716 return NGX_ERROR; | |
717 } | |
718 | |
719 st->state = sw_name; | |
720 break; | |
721 | |
722 case sw_name: | |
723 | |
724 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
8465
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HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
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diff
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|
725 if (rc != NGX_DONE) { |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
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|
726 return rc; |
8226 | 727 } |
728 | |
8465
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diff
changeset
|
729 st->name = st->literal.value; |
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diff
changeset
|
730 st->state = sw_value_len; |
8226 | 731 break; |
732 | |
733 case sw_value_len: | |
734 | |
735 st->literal.huffman = (ch & 0x80) ? 1 : 0; | |
736 st->state = sw_read_value_len; | |
737 | |
738 /* fall through */ | |
739 | |
740 case sw_read_value_len: | |
741 | |
8464
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HTTP/3: limited prefixed integer size by 62 bits.
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parents:
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diff
changeset
|
742 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 7, ch); |
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HTTP/3: limited prefixed integer size by 62 bits.
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diff
changeset
|
743 if (rc != NGX_DONE) { |
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HTTP/3: limited prefixed integer size by 62 bits.
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diff
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|
744 return rc; |
8226 | 745 } |
746 | |
747 st->literal.length = st->pint.value; | |
748 if (st->literal.length == 0) { | |
749 goto done; | |
750 } | |
751 | |
752 st->state = sw_value; | |
753 break; | |
754 | |
755 case sw_value: | |
756 | |
757 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
8465
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Roman Arutyunyan <arut@nginx.com>
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diff
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|
758 if (rc != NGX_DONE) { |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
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|
759 return rc; |
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
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|
760 } |
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diff
changeset
|
761 |
8465
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HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
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diff
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|
762 st->value = st->literal.value; |
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diff
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|
763 goto done; |
8226 | 764 } |
765 | |
766 return NGX_AGAIN; | |
767 | |
768 done: | |
769 | |
770 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
771 "http3 parse header l done \"%V\" \"%V\"", | |
772 &st->name, &st->value); | |
773 | |
774 st->state = sw_start; | |
775 return NGX_DONE; | |
776 } | |
777 | |
778 | |
779 ngx_int_t | |
780 ngx_http_v3_parse_header_pbi(ngx_connection_t *c, | |
781 ngx_http_v3_parse_header_t *st, u_char ch) | |
782 { | |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
changeset
|
783 ngx_int_t rc; |
8226 | 784 enum { |
785 sw_start = 0, | |
786 sw_index | |
787 }; | |
788 | |
789 switch (st->state) { | |
790 | |
791 case sw_start: | |
792 | |
793 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse header pbi"); | |
794 | |
795 st->state = sw_index; | |
796 | |
797 /* fall through */ | |
798 | |
799 case sw_index: | |
800 | |
8464
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HTTP/3: limited prefixed integer size by 62 bits.
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diff
changeset
|
801 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 4, ch); |
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HTTP/3: limited prefixed integer size by 62 bits.
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parents:
8463
diff
changeset
|
802 if (rc != NGX_DONE) { |
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HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
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8463
diff
changeset
|
803 return rc; |
8226 | 804 } |
805 | |
806 st->index = st->pint.value; | |
807 goto done; | |
808 } | |
809 | |
810 return NGX_AGAIN; | |
811 | |
812 done: | |
813 | |
814 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
815 "http3 parse header pbi done dynamic[+%ui]", st->index); | |
816 | |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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parents:
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diff
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|
817 rc = ngx_http_v3_parse_lookup(c, 1, st->base + st->index, &st->name, |
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
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|
818 &st->value); |
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
changeset
|
819 if (rc != NGX_OK) { |
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
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diff
changeset
|
820 return rc; |
8226 | 821 } |
822 | |
823 st->state = sw_start; | |
824 return NGX_DONE; | |
825 } | |
826 | |
827 | |
828 ngx_int_t | |
829 ngx_http_v3_parse_header_lpbi(ngx_connection_t *c, | |
830 ngx_http_v3_parse_header_t *st, u_char ch) | |
831 { | |
8456
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HTTP/3: refactored dynamic table implementation.
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diff
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|
832 ngx_int_t rc; |
8226 | 833 enum { |
834 sw_start = 0, | |
835 sw_index, | |
836 sw_value_len, | |
837 sw_read_value_len, | |
838 sw_value | |
839 }; | |
840 | |
841 switch (st->state) { | |
842 | |
843 case sw_start: | |
844 | |
845 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
846 "http3 parse header lpbi"); | |
847 | |
848 st->state = sw_index; | |
849 | |
850 /* fall through */ | |
851 | |
852 case sw_index: | |
853 | |
8464
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HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
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8463
diff
changeset
|
854 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 3, ch); |
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HTTP/3: limited prefixed integer size by 62 bits.
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8463
diff
changeset
|
855 if (rc != NGX_DONE) { |
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HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
856 return rc; |
8226 | 857 } |
858 | |
859 st->index = st->pint.value; | |
860 st->state = sw_value_len; | |
861 break; | |
862 | |
863 case sw_value_len: | |
864 | |
865 st->literal.huffman = (ch & 0x80) ? 1 : 0; | |
866 st->state = sw_read_value_len; | |
867 | |
868 /* fall through */ | |
869 | |
870 case sw_read_value_len: | |
871 | |
8464
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HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
872 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 7, ch); |
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HTTP/3: limited prefixed integer size by 62 bits.
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8463
diff
changeset
|
873 if (rc != NGX_DONE) { |
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HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
874 return rc; |
8226 | 875 } |
876 | |
877 st->literal.length = st->pint.value; | |
878 if (st->literal.length == 0) { | |
879 goto done; | |
880 } | |
881 | |
882 st->state = sw_value; | |
883 break; | |
884 | |
885 case sw_value: | |
886 | |
887 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
8465
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Roman Arutyunyan <arut@nginx.com>
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8464
diff
changeset
|
888 if (rc != NGX_DONE) { |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
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diff
changeset
|
889 return rc; |
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
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|
890 } |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
891 |
8465
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HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
892 st->value = st->literal.value; |
5611bbb852ce
HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
parents:
8464
diff
changeset
|
893 goto done; |
8226 | 894 } |
895 | |
896 return NGX_AGAIN; | |
897 | |
898 done: | |
899 | |
900 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
901 "http3 parse header lpbi done dynamic[+%ui] \"%V\"", | |
902 st->index, &st->value); | |
903 | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
904 rc = ngx_http_v3_parse_lookup(c, 1, st->base + st->index, &st->name, NULL); |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
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diff
changeset
|
905 if (rc != NGX_OK) { |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
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diff
changeset
|
906 return rc; |
8226 | 907 } |
908 | |
909 st->state = sw_start; | |
910 return NGX_DONE; | |
911 } | |
912 | |
913 | |
8456
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HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
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diff
changeset
|
914 static ngx_int_t |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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diff
changeset
|
915 ngx_http_v3_parse_lookup(ngx_connection_t *c, ngx_uint_t dynamic, |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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parents:
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diff
changeset
|
916 ngx_uint_t index, ngx_str_t *name, ngx_str_t *value) |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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diff
changeset
|
917 { |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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diff
changeset
|
918 u_char *p; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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diff
changeset
|
919 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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8455
diff
changeset
|
920 if (!dynamic) { |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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parents:
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diff
changeset
|
921 if (ngx_http_v3_lookup_static(c, index, name, value) != NGX_OK) { |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
922 return NGX_HTTP_V3_ERR_DECOMPRESSION_FAILED; |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
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8457
diff
changeset
|
923 } |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
924 |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
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diff
changeset
|
925 return NGX_OK; |
8456
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HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
926 } |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
927 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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parents:
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diff
changeset
|
928 if (ngx_http_v3_lookup(c, index, name, value) != NGX_OK) { |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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parents:
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diff
changeset
|
929 return NGX_HTTP_V3_ERR_DECOMPRESSION_FAILED; |
8456
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HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
930 } |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
931 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
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diff
changeset
|
932 if (name) { |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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parents:
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diff
changeset
|
933 p = ngx_pnalloc(c->pool, name->len + 1); |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
934 if (p == NULL) { |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
935 return NGX_ERROR; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
936 } |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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parents:
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diff
changeset
|
937 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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parents:
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diff
changeset
|
938 ngx_memcpy(p, name->data, name->len); |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
939 p[name->len] = '\0'; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
940 name->data = p; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
941 } |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
942 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
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diff
changeset
|
943 if (value) { |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
944 p = ngx_pnalloc(c->pool, value->len + 1); |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
945 if (p == NULL) { |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8455
diff
changeset
|
946 return NGX_ERROR; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
947 } |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
948 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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diff
changeset
|
949 ngx_memcpy(p, value->data, value->len); |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
|
950 p[value->len] = '\0'; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
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diff
changeset
|
951 value->data = p; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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diff
changeset
|
952 } |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
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diff
changeset
|
953 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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diff
changeset
|
954 return NGX_OK; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8455
diff
changeset
|
955 } |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8455
diff
changeset
|
956 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
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parents:
8455
diff
changeset
|
957 |
8226 | 958 ngx_int_t |
959 ngx_http_v3_parse_control(ngx_connection_t *c, void *data, u_char ch) | |
960 { | |
961 ngx_http_v3_parse_control_t *st = data; | |
962 | |
963 ngx_int_t rc; | |
964 enum { | |
965 sw_start = 0, | |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
changeset
|
966 sw_first_type, |
8226 | 967 sw_type, |
968 sw_length, | |
8497 | 969 sw_cancel_push, |
8226 | 970 sw_settings, |
971 sw_max_push_id, | |
972 sw_skip | |
973 }; | |
974 | |
975 switch (st->state) { | |
976 | |
977 case sw_start: | |
978 | |
979 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse control"); | |
980 | |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
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diff
changeset
|
981 st->state = sw_first_type; |
8226 | 982 |
983 /* fall through */ | |
984 | |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
changeset
|
985 case sw_first_type: |
8226 | 986 case sw_type: |
987 | |
8466
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HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
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diff
changeset
|
988 rc = ngx_http_v3_parse_varlen_int(c, &st->vlint, ch); |
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HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
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diff
changeset
|
989 if (rc != NGX_DONE) { |
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HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
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diff
changeset
|
990 return rc; |
8226 | 991 } |
992 | |
993 st->type = st->vlint.value; | |
994 | |
995 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
996 "http3 parse frame type:%ui", st->type); | |
997 | |
8550
234e9d89ff7f
HTTP/3: reject HTTP/2 frames.
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parents:
8549
diff
changeset
|
998 if (ngx_http_v3_is_v2_frame(st->type)) { |
234e9d89ff7f
HTTP/3: reject HTTP/2 frames.
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parents:
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diff
changeset
|
999 return NGX_HTTP_V3_ERR_FRAME_UNEXPECTED; |
234e9d89ff7f
HTTP/3: reject HTTP/2 frames.
Roman Arutyunyan <arut@nginx.com>
parents:
8549
diff
changeset
|
1000 } |
234e9d89ff7f
HTTP/3: reject HTTP/2 frames.
Roman Arutyunyan <arut@nginx.com>
parents:
8549
diff
changeset
|
1001 |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1002 if (st->state == sw_first_type |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
changeset
|
1003 && st->type != NGX_HTTP_V3_FRAME_SETTINGS) |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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parents:
8457
diff
changeset
|
1004 { |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
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|
1005 return NGX_HTTP_V3_ERR_MISSING_SETTINGS; |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
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diff
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|
1006 } |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
changeset
|
1007 |
8226 | 1008 st->state = sw_length; |
1009 break; | |
1010 | |
1011 case sw_length: | |
1012 | |
8466
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
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8465
diff
changeset
|
1013 rc = ngx_http_v3_parse_varlen_int(c, &st->vlint, ch); |
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
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8465
diff
changeset
|
1014 if (rc != NGX_DONE) { |
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HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1015 return rc; |
8226 | 1016 } |
1017 | |
1018 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1019 "http3 parse frame len:%uL", st->vlint.value); | |
1020 | |
1021 st->length = st->vlint.value; | |
1022 if (st->length == 0) { | |
1023 st->state = sw_type; | |
1024 break; | |
1025 } | |
1026 | |
1027 switch (st->type) { | |
1028 | |
8497 | 1029 case NGX_HTTP_V3_FRAME_CANCEL_PUSH: |
1030 st->state = sw_cancel_push; | |
1031 break; | |
1032 | |
8226 | 1033 case NGX_HTTP_V3_FRAME_SETTINGS: |
1034 st->state = sw_settings; | |
1035 break; | |
1036 | |
1037 case NGX_HTTP_V3_FRAME_MAX_PUSH_ID: | |
1038 st->state = sw_max_push_id; | |
1039 break; | |
1040 | |
1041 default: | |
1042 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1043 "http3 parse skip unknown frame"); | |
1044 st->state = sw_skip; | |
1045 } | |
1046 | |
1047 break; | |
1048 | |
8497 | 1049 case sw_cancel_push: |
1050 | |
1051 rc = ngx_http_v3_parse_varlen_int(c, &st->vlint, ch); | |
1052 | |
1053 if (--st->length == 0 && rc == NGX_AGAIN) { | |
1054 return NGX_HTTP_V3_ERR_FRAME_ERROR; | |
1055 } | |
1056 | |
1057 if (rc != NGX_DONE) { | |
1058 return rc; | |
1059 } | |
1060 | |
1061 rc = ngx_http_v3_cancel_push(c, st->vlint.value); | |
1062 if (rc != NGX_OK) { | |
1063 return rc; | |
1064 } | |
1065 | |
1066 st->state = sw_type; | |
1067 break; | |
1068 | |
8226 | 1069 case sw_settings: |
1070 | |
1071 rc = ngx_http_v3_parse_settings(c, &st->settings, ch); | |
1072 | |
8467
e02250b55b17
HTTP/3: simplified handling return codes from parse functions.
Roman Arutyunyan <arut@nginx.com>
parents:
8466
diff
changeset
|
1073 if (--st->length == 0 && rc == NGX_AGAIN) { |
e02250b55b17
HTTP/3: simplified handling return codes from parse functions.
Roman Arutyunyan <arut@nginx.com>
parents:
8466
diff
changeset
|
1074 return NGX_HTTP_V3_ERR_SETTINGS_ERROR; |
8226 | 1075 } |
1076 | |
1077 if (rc != NGX_DONE) { | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
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8457
diff
changeset
|
1078 return rc; |
8226 | 1079 } |
1080 | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1081 if (st->length == 0) { |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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parents:
8457
diff
changeset
|
1082 st->state = sw_type; |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
changeset
|
1083 } |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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parents:
8457
diff
changeset
|
1084 |
8226 | 1085 break; |
1086 | |
1087 case sw_max_push_id: | |
1088 | |
8466
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1089 rc = ngx_http_v3_parse_varlen_int(c, &st->vlint, ch); |
8497 | 1090 |
1091 if (--st->length == 0 && rc == NGX_AGAIN) { | |
1092 return NGX_HTTP_V3_ERR_FRAME_ERROR; | |
1093 } | |
1094 | |
8466
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1095 if (rc != NGX_DONE) { |
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1096 return rc; |
8226 | 1097 } |
1098 | |
8497 | 1099 rc = ngx_http_v3_set_max_push_id(c, st->vlint.value); |
1100 if (rc != NGX_OK) { | |
1101 return rc; | |
1102 } | |
8226 | 1103 |
1104 st->state = sw_type; | |
1105 break; | |
1106 | |
1107 case sw_skip: | |
1108 | |
1109 if (--st->length == 0) { | |
1110 st->state = sw_type; | |
1111 } | |
1112 | |
1113 break; | |
1114 } | |
1115 | |
1116 return NGX_AGAIN; | |
1117 } | |
1118 | |
1119 | |
1120 ngx_int_t | |
1121 ngx_http_v3_parse_settings(ngx_connection_t *c, | |
1122 ngx_http_v3_parse_settings_t *st, u_char ch) | |
1123 { | |
8466
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1124 ngx_int_t rc; |
8226 | 1125 enum { |
1126 sw_start = 0, | |
1127 sw_id, | |
1128 sw_value | |
1129 }; | |
1130 | |
1131 switch (st->state) { | |
1132 | |
1133 case sw_start: | |
1134 | |
1135 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse settings"); | |
1136 | |
1137 st->state = sw_id; | |
1138 | |
1139 /* fall through */ | |
1140 | |
1141 case sw_id: | |
1142 | |
8466
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1143 rc = ngx_http_v3_parse_varlen_int(c, &st->vlint, ch); |
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1144 if (rc != NGX_DONE) { |
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1145 return rc; |
8226 | 1146 } |
1147 | |
1148 st->id = st->vlint.value; | |
1149 st->state = sw_value; | |
1150 break; | |
1151 | |
1152 case sw_value: | |
1153 | |
8466
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1154 rc = ngx_http_v3_parse_varlen_int(c, &st->vlint, ch); |
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1155 if (rc != NGX_DONE) { |
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1156 return rc; |
8226 | 1157 } |
1158 | |
1159 if (ngx_http_v3_set_param(c, st->id, st->vlint.value) != NGX_OK) { | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1160 return NGX_HTTP_V3_ERR_SETTINGS_ERROR; |
8226 | 1161 } |
1162 | |
1163 goto done; | |
1164 } | |
1165 | |
1166 return NGX_AGAIN; | |
1167 | |
1168 done: | |
1169 | |
1170 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse settings done"); | |
1171 | |
1172 st->state = sw_start; | |
1173 return NGX_DONE; | |
1174 } | |
1175 | |
1176 | |
1177 ngx_int_t | |
1178 ngx_http_v3_parse_encoder(ngx_connection_t *c, void *data, u_char ch) | |
1179 { | |
1180 ngx_http_v3_parse_encoder_t *st = data; | |
1181 | |
1182 ngx_int_t rc; | |
1183 enum { | |
1184 sw_start = 0, | |
1185 sw_inr, | |
1186 sw_iwnr, | |
1187 sw_capacity, | |
1188 sw_duplicate | |
1189 }; | |
1190 | |
1191 if (st->state == sw_start) { | |
1192 | |
1193 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1194 "http3 parse encoder instruction"); | |
1195 | |
1196 if (ch & 0x80) { | |
1197 /* Insert With Name Reference */ | |
1198 | |
1199 st->state = sw_inr; | |
1200 | |
1201 } else if (ch & 0x40) { | |
1202 /* Insert Without Name Reference */ | |
1203 | |
1204 st->state = sw_iwnr; | |
1205 | |
1206 } else if (ch & 0x20) { | |
1207 /* Set Dynamic Table Capacity */ | |
1208 | |
1209 st->state = sw_capacity; | |
1210 | |
1211 } else { | |
1212 /* Duplicate */ | |
1213 | |
1214 st->state = sw_duplicate; | |
1215 } | |
1216 } | |
1217 | |
1218 switch (st->state) { | |
1219 | |
1220 case sw_inr: | |
1221 | |
1222 rc = ngx_http_v3_parse_header_inr(c, &st->header, ch); | |
1223 if (rc != NGX_DONE) { | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1224 return rc; |
8226 | 1225 } |
1226 | |
1227 goto done; | |
1228 | |
1229 case sw_iwnr: | |
1230 | |
1231 rc = ngx_http_v3_parse_header_iwnr(c, &st->header, ch); | |
1232 if (rc != NGX_DONE) { | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1233 return rc; |
8226 | 1234 } |
1235 | |
1236 goto done; | |
1237 | |
1238 case sw_capacity: | |
1239 | |
8464
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1240 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 5, ch); |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
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parents:
8463
diff
changeset
|
1241 if (rc != NGX_DONE) { |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1242 return rc; |
8226 | 1243 } |
1244 | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1245 rc = ngx_http_v3_set_capacity(c, st->pint.value); |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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parents:
8457
diff
changeset
|
1246 if (rc != NGX_OK) { |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1247 return rc; |
8226 | 1248 } |
1249 | |
1250 goto done; | |
1251 | |
1252 case sw_duplicate: | |
1253 | |
8464
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1254 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 5, ch); |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1255 if (rc != NGX_DONE) { |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1256 return rc; |
8226 | 1257 } |
1258 | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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parents:
8457
diff
changeset
|
1259 rc = ngx_http_v3_duplicate(c, st->pint.value); |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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parents:
8457
diff
changeset
|
1260 if (rc != NGX_OK) { |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1261 return rc; |
8226 | 1262 } |
1263 | |
1264 goto done; | |
1265 } | |
1266 | |
1267 return NGX_AGAIN; | |
1268 | |
1269 done: | |
1270 | |
1271 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1272 "http3 parse encoder instruction done"); | |
1273 | |
1274 st->state = sw_start; | |
8456
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8455
diff
changeset
|
1275 return NGX_AGAIN; |
8226 | 1276 } |
1277 | |
1278 | |
1279 ngx_int_t | |
1280 ngx_http_v3_parse_header_inr(ngx_connection_t *c, | |
1281 ngx_http_v3_parse_header_t *st, u_char ch) | |
1282 { | |
1283 ngx_int_t rc; | |
1284 enum { | |
1285 sw_start = 0, | |
1286 sw_name_index, | |
1287 sw_value_len, | |
1288 sw_read_value_len, | |
1289 sw_value | |
1290 }; | |
1291 | |
1292 switch (st->state) { | |
1293 | |
1294 case sw_start: | |
1295 | |
1296 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse header inr"); | |
1297 | |
1298 st->dynamic = (ch & 0x40) ? 0 : 1; | |
1299 st->state = sw_name_index; | |
1300 | |
1301 /* fall through */ | |
1302 | |
1303 case sw_name_index: | |
1304 | |
8464
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1305 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 6, ch); |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1306 if (rc != NGX_DONE) { |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1307 return rc; |
8226 | 1308 } |
1309 | |
1310 st->index = st->pint.value; | |
1311 st->state = sw_value_len; | |
1312 break; | |
1313 | |
1314 case sw_value_len: | |
1315 | |
1316 st->literal.huffman = (ch & 0x80) ? 1 : 0; | |
1317 st->state = sw_read_value_len; | |
1318 | |
1319 /* fall through */ | |
1320 | |
1321 case sw_read_value_len: | |
1322 | |
8464
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1323 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 7, ch); |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1324 if (rc != NGX_DONE) { |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1325 return rc; |
8226 | 1326 } |
1327 | |
1328 st->literal.length = st->pint.value; | |
1329 if (st->literal.length == 0) { | |
1330 goto done; | |
1331 } | |
1332 | |
1333 st->state = sw_value; | |
1334 break; | |
1335 | |
1336 case sw_value: | |
1337 | |
1338 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
8465
5611bbb852ce
HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
parents:
8464
diff
changeset
|
1339 if (rc != NGX_DONE) { |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1340 return rc; |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1341 } |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1342 |
8465
5611bbb852ce
HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
parents:
8464
diff
changeset
|
1343 st->value = st->literal.value; |
5611bbb852ce
HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
parents:
8464
diff
changeset
|
1344 goto done; |
8226 | 1345 } |
1346 | |
1347 return NGX_AGAIN; | |
1348 | |
1349 done: | |
1350 | |
1351 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1352 "http3 parse header inr done %s[%ui] \"%V\"", | |
1353 st->dynamic ? "dynamic" : "static", | |
1354 st->index, &st->value); | |
1355 | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1356 rc = ngx_http_v3_ref_insert(c, st->dynamic, st->index, &st->value); |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1357 if (rc != NGX_OK) { |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1358 return rc; |
8226 | 1359 } |
1360 | |
1361 st->state = sw_start; | |
1362 return NGX_DONE; | |
1363 } | |
1364 | |
1365 | |
1366 ngx_int_t | |
1367 ngx_http_v3_parse_header_iwnr(ngx_connection_t *c, | |
1368 ngx_http_v3_parse_header_t *st, u_char ch) | |
1369 { | |
1370 ngx_int_t rc; | |
1371 enum { | |
1372 sw_start = 0, | |
1373 sw_name_len, | |
1374 sw_name, | |
1375 sw_value_len, | |
1376 sw_read_value_len, | |
1377 sw_value | |
1378 }; | |
1379 | |
1380 switch (st->state) { | |
1381 | |
1382 case sw_start: | |
1383 | |
1384 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1385 "http3 parse header iwnr"); | |
1386 | |
1387 st->literal.huffman = (ch & 0x20) ? 1 : 0; | |
1388 st->state = sw_name_len; | |
1389 | |
1390 /* fall through */ | |
1391 | |
1392 case sw_name_len: | |
1393 | |
8464
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1394 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 5, ch); |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1395 if (rc != NGX_DONE) { |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1396 return rc; |
8226 | 1397 } |
1398 | |
1399 st->literal.length = st->pint.value; | |
1400 if (st->literal.length == 0) { | |
1401 return NGX_ERROR; | |
1402 } | |
1403 | |
1404 st->state = sw_name; | |
1405 break; | |
1406 | |
1407 case sw_name: | |
1408 | |
1409 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
8465
5611bbb852ce
HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
parents:
8464
diff
changeset
|
1410 if (rc != NGX_DONE) { |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1411 return rc; |
8226 | 1412 } |
1413 | |
8465
5611bbb852ce
HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
parents:
8464
diff
changeset
|
1414 st->name = st->literal.value; |
5611bbb852ce
HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
parents:
8464
diff
changeset
|
1415 st->state = sw_value_len; |
8226 | 1416 break; |
1417 | |
1418 case sw_value_len: | |
1419 | |
1420 st->literal.huffman = (ch & 0x80) ? 1 : 0; | |
1421 st->state = sw_read_value_len; | |
1422 | |
1423 /* fall through */ | |
1424 | |
1425 case sw_read_value_len: | |
1426 | |
8464
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1427 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 7, ch); |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1428 if (rc != NGX_DONE) { |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1429 return rc; |
8226 | 1430 } |
1431 | |
1432 st->literal.length = st->pint.value; | |
1433 if (st->literal.length == 0) { | |
1434 goto done; | |
1435 } | |
1436 | |
1437 st->state = sw_value; | |
1438 break; | |
1439 | |
1440 case sw_value: | |
1441 | |
1442 rc = ngx_http_v3_parse_literal(c, &st->literal, ch); | |
8465
5611bbb852ce
HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
parents:
8464
diff
changeset
|
1443 if (rc != NGX_DONE) { |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1444 return rc; |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1445 } |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1446 |
8465
5611bbb852ce
HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
parents:
8464
diff
changeset
|
1447 st->value = st->literal.value; |
5611bbb852ce
HTTP/3: simplifed handling ngx_http_v3_parse_literal() return code.
Roman Arutyunyan <arut@nginx.com>
parents:
8464
diff
changeset
|
1448 goto done; |
8226 | 1449 } |
1450 | |
1451 return NGX_AGAIN; | |
1452 | |
1453 done: | |
1454 | |
1455 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1456 "http3 parse header iwnr done \"%V\":\"%V\"", | |
1457 &st->name, &st->value); | |
1458 | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1459 rc = ngx_http_v3_insert(c, &st->name, &st->value); |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1460 if (rc != NGX_OK) { |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1461 return rc; |
8226 | 1462 } |
1463 | |
1464 st->state = sw_start; | |
1465 return NGX_DONE; | |
1466 } | |
1467 | |
1468 | |
1469 ngx_int_t | |
1470 ngx_http_v3_parse_decoder(ngx_connection_t *c, void *data, u_char ch) | |
1471 { | |
1472 ngx_http_v3_parse_decoder_t *st = data; | |
1473 | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1474 ngx_int_t rc; |
8226 | 1475 enum { |
1476 sw_start = 0, | |
1477 sw_ack_header, | |
1478 sw_cancel_stream, | |
1479 sw_inc_insert_count | |
1480 }; | |
1481 | |
1482 if (st->state == sw_start) { | |
1483 | |
1484 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1485 "http3 parse decoder instruction"); | |
1486 | |
1487 if (ch & 0x80) { | |
1488 /* Header Acknowledgement */ | |
1489 | |
1490 st->state = sw_ack_header; | |
1491 | |
1492 } else if (ch & 0x40) { | |
1493 /* Stream Cancellation */ | |
1494 | |
1495 st->state = sw_cancel_stream; | |
1496 | |
1497 } else { | |
1498 /* Insert Count Increment */ | |
1499 | |
1500 st->state = sw_inc_insert_count; | |
1501 } | |
1502 } | |
1503 | |
1504 switch (st->state) { | |
1505 | |
1506 case sw_ack_header: | |
1507 | |
8464
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1508 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 7, ch); |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1509 if (rc != NGX_DONE) { |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1510 return rc; |
8226 | 1511 } |
1512 | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1513 rc = ngx_http_v3_ack_header(c, st->pint.value); |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1514 if (rc != NGX_OK) { |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1515 return rc; |
8226 | 1516 } |
1517 | |
1518 goto done; | |
1519 | |
1520 case sw_cancel_stream: | |
1521 | |
8464
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1522 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 6, ch); |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1523 if (rc != NGX_DONE) { |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1524 return rc; |
8226 | 1525 } |
1526 | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1527 rc = ngx_http_v3_cancel_stream(c, st->pint.value); |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1528 if (rc != NGX_OK) { |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1529 return rc; |
8226 | 1530 } |
1531 | |
1532 goto done; | |
1533 | |
1534 case sw_inc_insert_count: | |
1535 | |
8464
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1536 rc = ngx_http_v3_parse_prefix_int(c, &st->pint, 6, ch); |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1537 if (rc != NGX_DONE) { |
fdb8edc8e496
HTTP/3: limited prefixed integer size by 62 bits.
Roman Arutyunyan <arut@nginx.com>
parents:
8463
diff
changeset
|
1538 return rc; |
8226 | 1539 } |
1540 | |
8460
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1541 rc = ngx_http_v3_inc_insert_count(c, st->pint.value); |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1542 if (rc != NGX_OK) { |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
Roman Arutyunyan <arut@nginx.com>
parents:
8457
diff
changeset
|
1543 return rc; |
8226 | 1544 } |
1545 | |
1546 goto done; | |
1547 } | |
1548 | |
1549 return NGX_AGAIN; | |
1550 | |
1551 done: | |
1552 | |
1553 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1554 "http3 parse decoder instruction done"); | |
1555 | |
1556 st->state = sw_start; | |
8456
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8455
diff
changeset
|
1557 return NGX_AGAIN; |
8226 | 1558 } |
8295
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1559 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1560 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1561 ngx_int_t |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1562 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:
8227
diff
changeset
|
1563 u_char ch) |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1564 { |
8466
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1565 ngx_int_t rc; |
8295
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1566 enum { |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1567 sw_start = 0, |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1568 sw_type, |
8549
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1569 sw_length, |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1570 sw_skip |
8295
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1571 }; |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1572 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1573 switch (st->state) { |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1574 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1575 case sw_start: |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1576 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1577 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:
8227
diff
changeset
|
1578 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1579 st->state = sw_type; |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1580 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1581 /* fall through */ |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1582 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1583 case sw_type: |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1584 |
8466
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1585 rc = ngx_http_v3_parse_varlen_int(c, &st->vlint, ch); |
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1586 if (rc != NGX_DONE) { |
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1587 return rc; |
8295
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1588 } |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1589 |
8549
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1590 st->type = st->vlint.value; |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1591 |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1592 if (st->type == NGX_HTTP_V3_FRAME_HEADERS) { |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1593 /* trailers */ |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1594 goto done; |
8295
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1595 } |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1596 |
8550
234e9d89ff7f
HTTP/3: reject HTTP/2 frames.
Roman Arutyunyan <arut@nginx.com>
parents:
8549
diff
changeset
|
1597 if (ngx_http_v3_is_v2_frame(st->type)) { |
234e9d89ff7f
HTTP/3: reject HTTP/2 frames.
Roman Arutyunyan <arut@nginx.com>
parents:
8549
diff
changeset
|
1598 return NGX_HTTP_V3_ERR_FRAME_UNEXPECTED; |
234e9d89ff7f
HTTP/3: reject HTTP/2 frames.
Roman Arutyunyan <arut@nginx.com>
parents:
8549
diff
changeset
|
1599 } |
234e9d89ff7f
HTTP/3: reject HTTP/2 frames.
Roman Arutyunyan <arut@nginx.com>
parents:
8549
diff
changeset
|
1600 |
8295
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1601 st->state = sw_length; |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1602 break; |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1603 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1604 case sw_length: |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1605 |
8466
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1606 rc = ngx_http_v3_parse_varlen_int(c, &st->vlint, ch); |
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1607 if (rc != NGX_DONE) { |
4fd709540daf
HTTP/3: put ngx_http_v3_parse_varlen_int() return code in variable.
Roman Arutyunyan <arut@nginx.com>
parents:
8465
diff
changeset
|
1608 return rc; |
8295
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1609 } |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1610 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1611 st->length = st->vlint.value; |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1612 |
8549
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1613 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1614 "http3 parse data type:%ui, len:%ui", |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1615 st->type, st->length); |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1616 |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1617 if (st->type != NGX_HTTP_V3_FRAME_DATA && st->length > 0) { |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1618 st->state = sw_skip; |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1619 break; |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1620 } |
8295
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1621 |
8549
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1622 st->state = sw_type; |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1623 return NGX_OK; |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1624 |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1625 case sw_skip: |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1626 |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1627 if (--st->length == 0) { |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1628 st->state = sw_type; |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1629 } |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1630 |
d70a38acaea0
HTTP/3: skip unknown frames on request stream.
Roman Arutyunyan <arut@nginx.com>
parents:
8497
diff
changeset
|
1631 break; |
8295
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1632 } |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1633 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1634 return NGX_AGAIN; |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1635 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1636 done: |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1637 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1638 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:
8227
diff
changeset
|
1639 |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1640 st->state = sw_start; |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1641 return NGX_DONE; |
5649079a41f4
Parsing HTTP/3 request body.
Roman Arutyunyan <arut@nginx.com>
parents:
8227
diff
changeset
|
1642 } |