nginx: src/http/v3/ngx_http_v3

annotate src/http/v3/ngx_http_v3_encode.c @ 8808:5b0c229ba5fe quic

QUIC: fixed padding calculation. Sometimes, QUIC packets need to be of certain (or minimal) size. This is achieved by adding PADDING frames. It is possible, that adding padding will affect header size, thus forcing us to recalculate padding size once more.

author	Vladimir Homutov <vl@nginx.com>
date	Mon, 05 Jul 2021 13:17:10 +0300
parents	0ac25efb2da3
children	b5a305db30e0

rev	line source
8215 38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	1
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	2 /*
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	3 * Copyright (C) Roman Arutyunyan
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	4 * Copyright (C) Nginx, Inc.
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	5 */
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	6
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	7
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	8 #include <ngx_config.h>
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	9 #include <ngx_core.h>
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	10 #include <ngx_http.h>
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	11
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	12
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	13 uintptr_t
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	14 ngx_http_v3_encode_varlen_int(u_char *p, uint64_t value)
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	15 {
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	16 if (value <= 63) {
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	17 if (p == NULL) {
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	18 return 1;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	19 }
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	20
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	21 *p++ = value;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	22 return (uintptr_t) p;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	23 }
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	24
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	25 if (value <= 16383) {
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	26 if (p == NULL) {
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	27 return 2;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	28 }
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	29
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	30 *p++ = 0x40 \| (value >> 8);
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	31 *p++ = value;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	32 return (uintptr_t) p;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	33 }
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	34
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	35 if (value <= 1073741823) {
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	36 if (p == NULL) {
8349 b13176e717ba HTTP/3: fixed encoding variable-length integers. Roman Arutyunyan <arut@nginx.com> parents: 8226 diff changeset	37 return 4;
8215 38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	38 }
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	39
8349 b13176e717ba HTTP/3: fixed encoding variable-length integers. Roman Arutyunyan <arut@nginx.com> parents: 8226 diff changeset	40 *p++ = 0x80 \| (value >> 24);
b13176e717ba HTTP/3: fixed encoding variable-length integers. Roman Arutyunyan <arut@nginx.com> parents: 8226 diff changeset	41 *p++ = (value >> 16);
8215 38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	42 *p++ = (value >> 8);
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	43 *p++ = value;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	44 return (uintptr_t) p;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	45 }
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	46
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	47 if (p == NULL) {
8349 b13176e717ba HTTP/3: fixed encoding variable-length integers. Roman Arutyunyan <arut@nginx.com> parents: 8226 diff changeset	48 return 8;
8215 38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	49 }
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	50
8349 b13176e717ba HTTP/3: fixed encoding variable-length integers. Roman Arutyunyan <arut@nginx.com> parents: 8226 diff changeset	51 *p++ = 0xc0 \| (value >> 56);
b13176e717ba HTTP/3: fixed encoding variable-length integers. Roman Arutyunyan <arut@nginx.com> parents: 8226 diff changeset	52 *p++ = (value >> 48);
b13176e717ba HTTP/3: fixed encoding variable-length integers. Roman Arutyunyan <arut@nginx.com> parents: 8226 diff changeset	53 *p++ = (value >> 40);
b13176e717ba HTTP/3: fixed encoding variable-length integers. Roman Arutyunyan <arut@nginx.com> parents: 8226 diff changeset	54 *p++ = (value >> 32);
b13176e717ba HTTP/3: fixed encoding variable-length integers. Roman Arutyunyan <arut@nginx.com> parents: 8226 diff changeset	55 *p++ = (value >> 24);
8215 38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	56 *p++ = (value >> 16);
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	57 *p++ = (value >> 8);
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	58 *p++ = value;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	59 return (uintptr_t) p;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	60 }
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	61
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	62
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	63 uintptr_t
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	64 ngx_http_v3_encode_prefix_int(u_char *p, uint64_t value, ngx_uint_t prefix)
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	65 {
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	66 ngx_uint_t thresh, n;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	67
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	68 thresh = (1 << prefix) - 1;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	69
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	70 if (value < thresh) {
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	71 if (p == NULL) {
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	72 return 1;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	73 }
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	74
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	75 *p++ \|= value;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	76 return (uintptr_t) p;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	77 }
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	78
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	79 value -= thresh;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	80
8455 b0e81f49d7c0 HTTP/3: fixed prefixed integer encoding and decoding. Roman Arutyunyan <arut@nginx.com> parents: 8349 diff changeset	81 if (p == NULL) {
b0e81f49d7c0 HTTP/3: fixed prefixed integer encoding and decoding. Roman Arutyunyan <arut@nginx.com> parents: 8349 diff changeset	82 for (n = 2; value >= 128; n++) {
b0e81f49d7c0 HTTP/3: fixed prefixed integer encoding and decoding. Roman Arutyunyan <arut@nginx.com> parents: 8349 diff changeset	83 value >>= 7;
8215 38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	84 }
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	85
8455 b0e81f49d7c0 HTTP/3: fixed prefixed integer encoding and decoding. Roman Arutyunyan <arut@nginx.com> parents: 8349 diff changeset	86 return n;
8215 38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	87 }
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	88
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	89 *p++ \|= thresh;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	90
8455 b0e81f49d7c0 HTTP/3: fixed prefixed integer encoding and decoding. Roman Arutyunyan <arut@nginx.com> parents: 8349 diff changeset	91 while (value >= 128) {
b0e81f49d7c0 HTTP/3: fixed prefixed integer encoding and decoding. Roman Arutyunyan <arut@nginx.com> parents: 8349 diff changeset	92 *p++ = 0x80 \| value;
b0e81f49d7c0 HTTP/3: fixed prefixed integer encoding and decoding. Roman Arutyunyan <arut@nginx.com> parents: 8349 diff changeset	93 value >>= 7;
8215 38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	94 }
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	95
8455 b0e81f49d7c0 HTTP/3: fixed prefixed integer encoding and decoding. Roman Arutyunyan <arut@nginx.com> parents: 8349 diff changeset	96 *p++ = value;
8215 38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	97
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	98 return (uintptr_t) p;
38c0898b6df7 HTTP/3. Roman Arutyunyan <arut@nginx.com> parents: diff changeset	99 }
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	100
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	101
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	102 uintptr_t
8807 0ac25efb2da3 HTTP/3: quic-qpack term updates. Sergey Kandaurov <pluknet@nginx.com> parents: 8534 diff changeset	103 ngx_http_v3_encode_field_section_prefix(u_char *p, ngx_uint_t insert_count,
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	104 ngx_uint_t sign, ngx_uint_t delta_base)
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	105 {
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	106 if (p == NULL) {
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	107 return ngx_http_v3_encode_prefix_int(NULL, insert_count, 8)
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	108 + ngx_http_v3_encode_prefix_int(NULL, delta_base, 7);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	109 }
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	110
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	111 *p = 0;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	112 p = (u_char *) ngx_http_v3_encode_prefix_int(p, insert_count, 8);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	113
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	114 *p = sign ? 0x80 : 0;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	115 p = (u_char *) ngx_http_v3_encode_prefix_int(p, delta_base, 7);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	116
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	117 return (uintptr_t) p;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	118 }
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	119
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	120
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	121 uintptr_t
8807 0ac25efb2da3 HTTP/3: quic-qpack term updates. Sergey Kandaurov <pluknet@nginx.com> parents: 8534 diff changeset	122 ngx_http_v3_encode_field_ri(u_char *p, ngx_uint_t dynamic, ngx_uint_t index)
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	123 {
8807 0ac25efb2da3 HTTP/3: quic-qpack term updates. Sergey Kandaurov <pluknet@nginx.com> parents: 8534 diff changeset	124 /* Indexed Field Line */
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	125
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	126 if (p == NULL) {
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	127 return ngx_http_v3_encode_prefix_int(NULL, index, 6);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	128 }
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	129
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	130 *p = dynamic ? 0x80 : 0xc0;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	131
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	132 return ngx_http_v3_encode_prefix_int(p, index, 6);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	133 }
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	134
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	135
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	136 uintptr_t
8807 0ac25efb2da3 HTTP/3: quic-qpack term updates. Sergey Kandaurov <pluknet@nginx.com> parents: 8534 diff changeset	137 ngx_http_v3_encode_field_lri(u_char *p, ngx_uint_t dynamic, ngx_uint_t index,
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	138 u_char *data, size_t len)
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	139 {
8807 0ac25efb2da3 HTTP/3: quic-qpack term updates. Sergey Kandaurov <pluknet@nginx.com> parents: 8534 diff changeset	140 /* Literal Field Line With Name Reference */
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	141
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	142 if (p == NULL) {
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	143 return ngx_http_v3_encode_prefix_int(NULL, index, 4)
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	144 + ngx_http_v3_encode_prefix_int(NULL, len, 7)
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	145 + len;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	146 }
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	147
8534 985f9351dd87 HTTP/3: do not set the never-indexed literal bit by default. Roman Arutyunyan <arut@nginx.com> parents: 8491 diff changeset	148 *p = dynamic ? 0x40 : 0x50;
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	149 p = (u_char *) ngx_http_v3_encode_prefix_int(p, index, 4);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	150
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	151 *p = 0;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	152 p = (u_char *) ngx_http_v3_encode_prefix_int(p, len, 7);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	153
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	154 if (data) {
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	155 p = ngx_cpymem(p, data, len);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	156 }
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	157
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	158 return (uintptr_t) p;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	159 }
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	160
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	161
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	162 uintptr_t
8807 0ac25efb2da3 HTTP/3: quic-qpack term updates. Sergey Kandaurov <pluknet@nginx.com> parents: 8534 diff changeset	163 ngx_http_v3_encode_field_l(u_char p, ngx_str_t name, ngx_str_t *value)
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	164 {
8807 0ac25efb2da3 HTTP/3: quic-qpack term updates. Sergey Kandaurov <pluknet@nginx.com> parents: 8534 diff changeset	165 /* Literal Field Line With Literal Name */
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	166
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	167 if (p == NULL) {
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	168 return ngx_http_v3_encode_prefix_int(NULL, name->len, 3)
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	169 + name->len
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	170 + ngx_http_v3_encode_prefix_int(NULL, value->len, 7)
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	171 + value->len;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	172 }
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	173
8534 985f9351dd87 HTTP/3: do not set the never-indexed literal bit by default. Roman Arutyunyan <arut@nginx.com> parents: 8491 diff changeset	174 *p = 0x20;
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	175 p = (u_char *) ngx_http_v3_encode_prefix_int(p, name->len, 3);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	176
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	177 ngx_strlow(p, name->data, name->len);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	178 p += name->len;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	179
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	180 *p = 0;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	181 p = (u_char *) ngx_http_v3_encode_prefix_int(p, value->len, 7);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	182
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	183 p = ngx_cpymem(p, value->data, value->len);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	184
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	185 return (uintptr_t) p;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	186 }
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	187
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	188
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	189 uintptr_t
8807 0ac25efb2da3 HTTP/3: quic-qpack term updates. Sergey Kandaurov <pluknet@nginx.com> parents: 8534 diff changeset	190 ngx_http_v3_encode_field_pbi(u_char *p, ngx_uint_t index)
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	191 {
8807 0ac25efb2da3 HTTP/3: quic-qpack term updates. Sergey Kandaurov <pluknet@nginx.com> parents: 8534 diff changeset	192 /* Indexed Field Line With Post-Base Index */
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	193
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	194 if (p == NULL) {
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	195 return ngx_http_v3_encode_prefix_int(NULL, index, 4);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	196 }
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	197
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	198 *p = 0x10;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	199
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	200 return ngx_http_v3_encode_prefix_int(p, index, 4);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	201 }
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	202
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	203
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	204 uintptr_t
8807 0ac25efb2da3 HTTP/3: quic-qpack term updates. Sergey Kandaurov <pluknet@nginx.com> parents: 8534 diff changeset	205 ngx_http_v3_encode_field_lpbi(u_char p, ngx_uint_t index, u_char data,
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	206 size_t len)
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	207 {
8807 0ac25efb2da3 HTTP/3: quic-qpack term updates. Sergey Kandaurov <pluknet@nginx.com> parents: 8534 diff changeset	208 /* Literal Field Line With Post-Base Name Reference */
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	209
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	210 if (p == NULL) {
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	211 return ngx_http_v3_encode_prefix_int(NULL, index, 3)
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	212 + ngx_http_v3_encode_prefix_int(NULL, len, 7)
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	213 + len;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	214 }
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	215
8534 985f9351dd87 HTTP/3: do not set the never-indexed literal bit by default. Roman Arutyunyan <arut@nginx.com> parents: 8491 diff changeset	216 *p = 0;
8488 79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	217 p = (u_char *) ngx_http_v3_encode_prefix_int(p, index, 3);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	218
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	219 *p = 0;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	220 p = (u_char *) ngx_http_v3_encode_prefix_int(p, len, 7);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	221
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	222 if (data) {
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	223 p = ngx_cpymem(p, data, len);
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	224 }
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	225
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	226 return (uintptr_t) p;
79125ef2e39f HTTP/3: header encoding functions. Roman Arutyunyan <arut@nginx.com> parents: 8455 diff changeset	227 }

Mercurial > hg > nginx

annotate src/http/v3/ngx_http_v3_encode.c @ 8808:5b0c229ba5fe quic