nginx: src/event/quic/ngx_event_quic

annotate src/event/quic/ngx_event_quic_output.c @ 8781:81d491f0dc8c quic

QUIC: unroll and inline ngx_quic_varint_len()/ngx_quic_build_int(). According to profiling, those two are among most frequently called, so inlining is generally useful, and unrolling should help with it. Further, this fixes undefined behaviour seen with invalid values. Inspired by Yu Liu.

author	Sergey Kandaurov <pluknet@nginx.com>
date	Sat, 22 May 2021 18:40:45 +0300
parents	4117aa7fa38e
children	4715f3e669f1

rev	line source
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	2 /*
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	3 * Copyright (C) Nginx, Inc.
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	4 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	5
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	6
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	7 #include <ngx_config.h>
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	8 #include <ngx_core.h>
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	9 #include <ngx_event.h>
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	10 #include <ngx_event_quic_connection.h>
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	11
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	12
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	13 #define NGX_QUIC_MAX_SHORT_HEADER 25 /* 1 flags + 20 dcid + 4 pn */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	14 #define NGX_QUIC_MAX_LONG_HEADER 56
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	15 /* 1 flags + 4 version + 2 x (1 + 20) s/dcid + 4 pn + 4 len + token len */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	16
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	17 #define NGX_QUIC_MAX_UDP_PAYLOAD_OUT 1252
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	18 #define NGX_QUIC_MAX_UDP_PAYLOAD_OUT6 1232
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	19
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	20 #define NGX_QUIC_RETRY_TOKEN_LIFETIME 3 /* seconds */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	21 #define NGX_QUIC_NEW_TOKEN_LIFETIME 600 /* seconds */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	22 #define NGX_QUIC_RETRY_BUFFER_SIZE 256
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	23 /* 1 flags + 4 version + 3 x (1 + 20) s/o/dcid + itag + token(64) */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	24
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	25 /*
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	26 * Endpoints MUST discard packets that are too small to be valid QUIC
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	27 * packets. With the set of AEAD functions defined in [QUIC-TLS],
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	28 * packets that are smaller than 21 bytes are never valid.
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	29 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	30 #define NGX_QUIC_MIN_PKT_LEN 21
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	31
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	32 #define NGX_QUIC_MIN_SR_PACKET 43 /* 5 rand + 16 srt + 22 padding */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	33 #define NGX_QUIC_MAX_SR_PACKET 1200
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	34
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	35 #define NGX_QUIC_CC_MIN_INTERVAL 1000 /* 1s */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	36
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	37
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	38 static ngx_int_t ngx_quic_socket_output(ngx_connection_t *c,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	39 ngx_quic_socket_t *qsock);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	40 static ssize_t ngx_quic_output_packet(ngx_connection_t *c,
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	41 ngx_quic_send_ctx_t ctx, u_char data, size_t max, size_t min,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	42 ngx_quic_socket_t *qsock);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	43 static ngx_uint_t ngx_quic_get_padding_level(ngx_connection_t *c);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	44 static ssize_t ngx_quic_send(ngx_connection_t c, u_char buf, size_t len,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	45 struct sockaddr *sockaddr, socklen_t socklen);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	46 static void ngx_quic_set_packet_number(ngx_quic_header_t *pkt,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	47 ngx_quic_send_ctx_t *ctx);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	48
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	49
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	50 size_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	51 ngx_quic_max_udp_payload(ngx_connection_t *c)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	52 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	53 /* TODO: path MTU discovery */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	54
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	55 #if (NGX_HAVE_INET6)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	56 if (c->sockaddr->sa_family == AF_INET6) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	57 return NGX_QUIC_MAX_UDP_PAYLOAD_OUT6;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	58 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	59 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	60
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	61 return NGX_QUIC_MAX_UDP_PAYLOAD_OUT;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	62 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	63
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	64
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	65 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	66 ngx_quic_output(ngx_connection_t *c)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	67 {
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	68 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	69
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	70 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	71
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	72 if (ngx_quic_socket_output(c, qc->socket) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	73 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	74 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	75
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	76 ngx_quic_set_lost_timer(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	77
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	78 return NGX_OK;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	79 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	80
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	81
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	82 static ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	83 ngx_quic_socket_output(ngx_connection_t c, ngx_quic_socket_t qsock)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	84 {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	85 off_t max;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	86 size_t len, min, in_flight;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	87 ssize_t n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	88 u_char *p;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	89 ngx_uint_t i, pad;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	90 ngx_quic_path_t *path;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	91 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	92 ngx_quic_congestion_t *cg;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	93 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	94 static u_char dst[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	95
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	96 c->log->action = "sending frames";
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	97
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	98 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	99 cg = &qc->congestion;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	100
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	101 in_flight = cg->in_flight;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	102
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	103 path = qsock->path;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	104
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	105 for ( ;; ) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	106 p = dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	107
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	108 len = ngx_min(qc->ctp.max_udp_payload_size,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	109 NGX_QUIC_MAX_UDP_PAYLOAD_SIZE);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	110
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	111 if (path->state != NGX_QUIC_PATH_VALIDATED) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	112 max = path->received * 3;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	113 max = (path->sent >= max) ? 0 : max - path->sent;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	114
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	115 len = ngx_min(len, (size_t) max);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	116 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	117
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	118 pad = ngx_quic_get_padding_level(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	119
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	120 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	121
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	122 ctx = &qc->send_ctx[i];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	123
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	124 if (ngx_quic_generate_ack(c, ctx) != NGX_OK) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	125 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	126 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	127
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	128 min = (i == pad && p - dst < NGX_QUIC_MIN_INITIAL_SIZE)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	129 ? NGX_QUIC_MIN_INITIAL_SIZE - (p - dst) : 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	130
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	131 n = ngx_quic_output_packet(c, ctx, p, len, min, qsock);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	132 if (n == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	133 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	134 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	135
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	136 p += n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	137 len -= n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	138 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	139
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	140 len = p - dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	141 if (len == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	142 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	143 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	144
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	145 n = ngx_quic_send(c, dst, len, path->sockaddr, path->socklen);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	146
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	147 if (n == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	148 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	149 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	150
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	151 path->sent += len;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	152 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	153
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	154 if (in_flight != cg->in_flight && !qc->send_timer_set && !qc->closing) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	155 qc->send_timer_set = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	156 ngx_add_timer(c->read, qc->tp.max_idle_timeout);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	157 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	158
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	159
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	160 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	161 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	162
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	163
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	164 static ngx_uint_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	165 ngx_quic_get_padding_level(ngx_connection_t *c)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	166 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	167 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	168 ngx_quic_frame_t *f;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	169 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	170 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	171
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	172 /*
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	173 * 14.1. Initial Datagram Size
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	174 *
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	175 * Similarly, a server MUST expand the payload of all UDP datagrams
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	176 * carrying ack-eliciting Initial packets to at least the smallest
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	177 * allowed maximum datagram size of 1200 bytes
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	178 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	179
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	180 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	181 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_initial);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	182
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	183 for (q = ngx_queue_head(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	184 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	185 q = ngx_queue_next(q))
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	186 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	187 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	188
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	189 if (f->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	190 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_handshake);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	191
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	192 if (ngx_queue_empty(&ctx->frames)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	193 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	194 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	195
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	196 return 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	197 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	198 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	199
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	200 return NGX_QUIC_SEND_CTX_LAST;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	201 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	202
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	203
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	204 static ssize_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	205 ngx_quic_output_packet(ngx_connection_t c, ngx_quic_send_ctx_t ctx,
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	206 u_char data, size_t max, size_t min, ngx_quic_socket_t qsock)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	207 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	208 size_t len, hlen, pad_len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	209 u_char *p;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	210 ssize_t flen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	211 ngx_str_t out, res;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	212 ngx_int_t rc;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	213 ngx_uint_t nframes, has_pr;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	214 ngx_msec_t now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	215 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	216 ngx_quic_frame_t *f;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	217 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	218 ngx_quic_congestion_t *cg;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	219 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	220 static u_char src[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	221
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	222 if (ngx_queue_empty(&ctx->frames)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	223 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	224 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	225
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	226 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	227 "quic output sock #%uL %s packet max:%uz min:%uz",
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	228 qsock->sid.seqnum, ngx_quic_level_name(ctx->level),
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	229 max, min);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	230
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	231 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	232 cg = &qc->congestion;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	233
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	234 hlen = (ctx->level == ssl_encryption_application)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	235 ? NGX_QUIC_MAX_SHORT_HEADER
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	236 : NGX_QUIC_MAX_LONG_HEADER;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	237
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	238 hlen += EVP_GCM_TLS_TAG_LEN;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	239 hlen -= NGX_QUIC_MAX_CID_LEN - qsock->cid->len;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	240
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	241 ngx_memzero(&pkt, sizeof(ngx_quic_header_t));
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	242
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	243 now = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	244 nframes = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	245 p = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	246 len = 0;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	247 has_pr = 0;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	248
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	249 for (q = ngx_queue_head(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	250 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	251 q = ngx_queue_next(q))
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	252 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	253 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	254
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	255 if (!pkt.need_ack && f->need_ack && max > cg->window) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	256 max = cg->window;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	257 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	258
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	259 if (f->type == NGX_QUIC_FT_PATH_RESPONSE
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	260 \|\| f->type == NGX_QUIC_FT_PATH_CHALLENGE)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	261 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	262 has_pr = 1;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	263 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	264
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	265 if (hlen + len >= max) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	266 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	267 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	268
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	269 if (hlen + len + f->len > max) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	270 rc = ngx_quic_split_frame(c, f, max - hlen - len);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	271
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	272 if (rc == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	273 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	274 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	275
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	276 if (rc == NGX_DECLINED) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	277 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	278 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	279 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	280
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	281 if (f->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	282 pkt.need_ack = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	283 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	284
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	285 ngx_quic_log_frame(c->log, f, 1);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	286
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	287 flen = ngx_quic_create_frame(p, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	288 if (flen == -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	289 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	290 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	291
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	292 len += flen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	293 p += flen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	294
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	295 f->pnum = ctx->pnum;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	296 f->first = now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	297 f->last = now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	298 f->plen = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	299
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	300 nframes++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	301
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	302 if (f->flush) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	303 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	304 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	305 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	306
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	307 if (nframes == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	308 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	309 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	310
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	311 out.data = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	312 out.len = len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	313
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	314 pkt.keys = qc->keys;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	315 pkt.flags = NGX_QUIC_PKT_FIXED_BIT;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	316
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	317 if (ctx->level == ssl_encryption_initial) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	318 pkt.flags \|= NGX_QUIC_PKT_LONG \| NGX_QUIC_PKT_INITIAL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	319
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	320 } else if (ctx->level == ssl_encryption_handshake) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	321 pkt.flags \|= NGX_QUIC_PKT_LONG \| NGX_QUIC_PKT_HANDSHAKE;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	322
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	323 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	324 if (qc->key_phase) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	325 pkt.flags \|= NGX_QUIC_PKT_KPHASE;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	326 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	327 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	328
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	329 ngx_quic_set_packet_number(&pkt, ctx);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	330
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	331 pkt.version = qc->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	332 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	333 pkt.level = ctx->level;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	334
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	335 pkt.dcid.data = qsock->cid->id;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	336 pkt.dcid.len = qsock->cid->len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	337
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	338 pkt.scid.data = qsock->sid.id;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	339 pkt.scid.len = qsock->sid.len;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	340
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	341 pad_len = 4;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	342
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	343 if (min \|\| has_pr) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	344 hlen = EVP_GCM_TLS_TAG_LEN
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	345 + ngx_quic_create_header(&pkt, NULL, out.len, NULL);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	346
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	347 /*
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	348 * An endpoint MUST expand datagrams that contain a
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	349 * PATH_CHALLENGE frame to at least the smallest allowed
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	350 * maximum datagram size of 1200 bytes, unless the
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	351 * anti-amplification limit for the path does not permit
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	352 * sending a datagram of this size.
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	353 *
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	354 * (same applies to PATH_RESPONSE frames)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	355 */
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	356
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	357 if (has_pr) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	358 min = ngx_max(1200, min);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	359 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	360
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	361 if (min > hlen + pad_len) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	362 pad_len = min - hlen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	363 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	364 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	365
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	366 if (out.len < pad_len) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	367 ngx_memset(p, NGX_QUIC_FT_PADDING, pad_len - out.len);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	368 out.len = pad_len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	369 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	370
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	371 pkt.payload = out;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	372
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	373 res.data = data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	374
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	375 ngx_log_debug6(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	376 "quic packet tx %s bytes:%ui"
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	377 " need_ack:%d number:%L encoded nl:%d trunc:0x%xD",
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	378 ngx_quic_level_name(ctx->level), out.len, pkt.need_ack,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	379 pkt.number, pkt.num_len, pkt.trunc);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	380
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	381 if (ngx_quic_encrypt(&pkt, &res) != NGX_OK) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	382 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	383 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	384
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	385 ctx->pnum++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	386
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	387 if (pkt.need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	388 /* move frames into the sent queue to wait for ack */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	389
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	390 if (!qc->closing) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	391 q = ngx_queue_head(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	392 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	393 f->plen = res.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	394
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	395 do {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	396 q = ngx_queue_head(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	397 ngx_queue_remove(q);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	398 ngx_queue_insert_tail(&ctx->sent, q);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	399 } while (--nframes);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	400 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	401
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	402 cg->in_flight += res.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	403
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	404 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	405 "quic congestion send if:%uz", cg->in_flight);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	406 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	407
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	408 while (nframes--) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	409 q = ngx_queue_head(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	410 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	411
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	412 ngx_queue_remove(q);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	413 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	414 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	415
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	416 return res.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	417 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	418
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	419
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	420 static ssize_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	421 ngx_quic_send(ngx_connection_t c, u_char buf, size_t len,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	422 struct sockaddr *sockaddr, socklen_t socklen)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	423 {
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	424 ngx_buf_t b;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	425 socklen_t orig_socklen;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	426 ngx_chain_t cl, *res;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	427 struct sockaddr *orig_sockaddr;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	428
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	429 ngx_memzero(&b, sizeof(ngx_buf_t));
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	430
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	431 b.pos = b.start = buf;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	432 b.last = b.end = buf + len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	433 b.last_buf = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	434 b.temporary = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	435
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	436 cl.buf = &b;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	437 cl.next= NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	438
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	439 orig_socklen = c->socklen;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	440 orig_sockaddr = c->sockaddr;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	441
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	442 c->sockaddr = sockaddr;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	443 c->socklen = socklen;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	444
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	445 res = c->send_chain(c, &cl, 0);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	446
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	447 c->sockaddr = orig_sockaddr;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	448 c->socklen = orig_socklen;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	449
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	450 if (res == NGX_CHAIN_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	451 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	452 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	453
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	454 return len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	455 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	456
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	457
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	458 static void
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	459 ngx_quic_set_packet_number(ngx_quic_header_t pkt, ngx_quic_send_ctx_t ctx)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	460 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	461 uint64_t delta;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	462
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	463 delta = ctx->pnum - ctx->largest_ack;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	464 pkt->number = ctx->pnum;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	465
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	466 if (delta <= 0x7F) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	467 pkt->num_len = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	468 pkt->trunc = ctx->pnum & 0xff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	469
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	470 } else if (delta <= 0x7FFF) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	471 pkt->num_len = 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	472 pkt->flags \|= 0x1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	473 pkt->trunc = ctx->pnum & 0xffff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	474
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	475 } else if (delta <= 0x7FFFFF) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	476 pkt->num_len = 3;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	477 pkt->flags \|= 0x2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	478 pkt->trunc = ctx->pnum & 0xffffff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	479
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	480 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	481 pkt->num_len = 4;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	482 pkt->flags \|= 0x3;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	483 pkt->trunc = ctx->pnum & 0xffffffff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	484 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	485 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	486
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	487
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	488 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	489 ngx_quic_negotiate_version(ngx_connection_t c, ngx_quic_header_t inpkt)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	490 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	491 size_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	492 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	493 static u_char buf[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	494
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	495 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	496 "sending version negotiation packet");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	497
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	498 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	499 pkt.flags = NGX_QUIC_PKT_LONG \| NGX_QUIC_PKT_FIXED_BIT;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	500 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	501 pkt.scid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	502
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	503 len = ngx_quic_create_version_negotiation(&pkt, buf);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	504
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	505 #ifdef NGX_QUIC_DEBUG_PACKETS
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	506 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	507 "quic vnego packet to send len:%uz %*xs", len, len, buf);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	508 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	509
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	510 (void) ngx_quic_send(c, buf, len, c->sockaddr, c->socklen);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	511
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	512 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	513 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	514
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	515
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	516 int
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	517 ngx_quic_send_alert(ngx_ssl_conn_t *ssl_conn, enum ssl_encryption_level_t level,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	518 uint8_t alert)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	519 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	520 ngx_connection_t *c;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	521 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	522
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	523 c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	524
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	525 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	526 "quic ngx_quic_send_alert() lvl:%d alert:%d",
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	527 (int) level, (int) alert);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	528
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	529 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	530 if (qc == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	531 return 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	532 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	533
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	534 qc->error_level = level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	535 qc->error = NGX_QUIC_ERR_CRYPTO(alert);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	536 qc->error_reason = "TLS alert";
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	537 qc->error_app = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	538 qc->error_ftype = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	539
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	540 if (ngx_quic_send_cc(c) != NGX_OK) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	541 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	542 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	543
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	544 return 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	545 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	546
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	547
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	548 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	549 ngx_quic_send_stateless_reset(ngx_connection_t c, ngx_quic_conf_t conf,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	550 ngx_quic_header_t *pkt)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	551 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	552 u_char *token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	553 size_t len, max;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	554 uint16_t rndbytes;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	555 u_char buf[NGX_QUIC_MAX_SR_PACKET];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	556
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	557 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	558 "quic handle stateless reset output");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	559
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	560 if (pkt->len <= NGX_QUIC_MIN_PKT_LEN) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	561 return NGX_DECLINED;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	562 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	563
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	564 if (pkt->len <= NGX_QUIC_MIN_SR_PACKET) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	565 len = pkt->len - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	566
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	567 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	568 max = ngx_min(NGX_QUIC_MAX_SR_PACKET, pkt->len * 3);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	569
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	570 if (RAND_bytes((u_char *) &rndbytes, sizeof(rndbytes)) != 1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	571 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	572 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	573
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	574 len = (rndbytes % (max - NGX_QUIC_MIN_SR_PACKET + 1))
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	575 + NGX_QUIC_MIN_SR_PACKET;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	576 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	577
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	578 if (RAND_bytes(buf, len - NGX_QUIC_SR_TOKEN_LEN) != 1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	579 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	580 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	581
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	582 buf[0] &= ~NGX_QUIC_PKT_LONG;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	583 buf[0] \|= NGX_QUIC_PKT_FIXED_BIT;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	584
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	585 token = &buf[len - NGX_QUIC_SR_TOKEN_LEN];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	586
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	587 if (ngx_quic_new_sr_token(c, &pkt->dcid, conf->sr_token_key, token)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	588 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	589 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	590 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	591 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	592
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	593 (void) ngx_quic_send(c, buf, len, c->sockaddr, c->socklen);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	594
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	595 return NGX_DECLINED;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	596 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	597
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	598
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	599 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	600 ngx_quic_send_cc(ngx_connection_t *c)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	601 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	602 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	603 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	604
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	605 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	606
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	607 if (qc->draining) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	608 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	609 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	610
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	611 if (qc->closing
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	612 && ngx_current_msec - qc->last_cc < NGX_QUIC_CC_MIN_INTERVAL)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	613 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	614 /* dot not send CC too often */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	615 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	616 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	617
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	618 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	619 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	620 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	621 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	622
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	623 frame->level = qc->error_level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	624 frame->type = qc->error_app ? NGX_QUIC_FT_CONNECTION_CLOSE_APP
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	625 : NGX_QUIC_FT_CONNECTION_CLOSE;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	626 frame->u.close.error_code = qc->error;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	627 frame->u.close.frame_type = qc->error_ftype;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	628
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	629 if (qc->error_reason) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	630 frame->u.close.reason.len = ngx_strlen(qc->error_reason);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	631 frame->u.close.reason.data = (u_char *) qc->error_reason;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	632 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	633
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	634 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	635
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	636 qc->last_cc = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	637
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	638 return ngx_quic_output(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	639 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	640
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	641
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	642 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	643 ngx_quic_send_early_cc(ngx_connection_t c, ngx_quic_header_t inpkt,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	644 ngx_uint_t err, const char *reason)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	645 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	646 ssize_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	647 ngx_str_t res;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	648 ngx_quic_frame_t frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	649 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	650
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	651 static u_char src[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	652 static u_char dst[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	653
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	654 ngx_memzero(&frame, sizeof(ngx_quic_frame_t));
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	655 ngx_memzero(&pkt, sizeof(ngx_quic_header_t));
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	656
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	657 frame.level = inpkt->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	658 frame.type = NGX_QUIC_FT_CONNECTION_CLOSE;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	659 frame.u.close.error_code = err;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	660
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	661 frame.u.close.reason.data = (u_char *) reason;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	662 frame.u.close.reason.len = ngx_strlen(reason);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	663
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	664 len = ngx_quic_create_frame(NULL, &frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	665 if (len > NGX_QUIC_MAX_UDP_PAYLOAD_SIZE) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	666 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	667 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	668
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	669 ngx_quic_log_frame(c->log, &frame, 1);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	670
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	671 len = ngx_quic_create_frame(src, &frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	672 if (len == -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	673 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	674 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	675
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	676 pkt.keys = ngx_quic_keys_new(c->pool);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	677 if (pkt.keys == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	678 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	679 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	680
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	681 if (ngx_quic_keys_set_initial_secret(c->pool, pkt.keys, &inpkt->dcid,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	682 inpkt->version)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	683 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	684 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	685 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	686 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	687
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	688 pkt.flags = NGX_QUIC_PKT_FIXED_BIT \| NGX_QUIC_PKT_LONG
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	689 \| NGX_QUIC_PKT_INITIAL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	690
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	691 pkt.num_len = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	692 /*
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	693 * pkt.num = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	694 * pkt.trunc = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	695 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	696
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	697 pkt.version = inpkt->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	698 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	699 pkt.level = inpkt->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	700 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	701 pkt.scid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	702 pkt.payload.data = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	703 pkt.payload.len = len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	704
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	705 res.data = dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	706
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	707 if (ngx_quic_encrypt(&pkt, &res) != NGX_OK) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	708 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	709 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	710
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	711 if (ngx_quic_send(c, res.data, res.len, c->sockaddr, c->socklen)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	712 == NGX_ERROR)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	713 {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	714 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	715 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	716
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	717 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	718 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	719
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	720
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	721 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	722 ngx_quic_send_retry(ngx_connection_t c, ngx_quic_conf_t conf,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	723 ngx_quic_header_t *inpkt)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	724 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	725 time_t expires;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	726 ssize_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	727 ngx_str_t res, token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	728 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	729
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	730 u_char buf[NGX_QUIC_RETRY_BUFFER_SIZE];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	731 u_char dcid[NGX_QUIC_SERVER_CID_LEN];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	732
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	733 expires = ngx_time() + NGX_QUIC_RETRY_TOKEN_LIFETIME;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	734
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	735 if (ngx_quic_new_token(c, c->sockaddr, c->socklen, conf->av_token_key,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	736 &token, &inpkt->dcid, expires, 1)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	737 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	738 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	739 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	740 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	741
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	742 ngx_memzero(&pkt, sizeof(ngx_quic_header_t));
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	743 pkt.flags = NGX_QUIC_PKT_FIXED_BIT \| NGX_QUIC_PKT_LONG \| NGX_QUIC_PKT_RETRY;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	744 pkt.version = inpkt->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	745 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	746
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	747 pkt.odcid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	748 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	749
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	750 /* TODO: generate routable dcid */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	751 if (RAND_bytes(dcid, NGX_QUIC_SERVER_CID_LEN) != 1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	752 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	753 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	754
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	755 pkt.scid.len = NGX_QUIC_SERVER_CID_LEN;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	756 pkt.scid.data = dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	757
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	758 pkt.token = token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	759
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	760 res.data = buf;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	761
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	762 if (ngx_quic_encrypt(&pkt, &res) != NGX_OK) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	763 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	764 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	765
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	766 #ifdef NGX_QUIC_DEBUG_PACKETS
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	767 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	768 "quic packet to send len:%uz %xV", res.len, &res);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	769 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	770
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	771 len = ngx_quic_send(c, res.data, res.len, c->sockaddr, c->socklen);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	772 if (len == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	773 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	774 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	775
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	776 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	777 "quic retry packet sent to %xV", &pkt.dcid);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	778
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	779 /*
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	780 * quic-transport 17.2.5.1: A server MUST NOT send more than one Retry
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	781 * packet in response to a single UDP datagram.
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	782 * NGX_DONE will stop quic_input() from processing further
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	783 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	784 return NGX_DONE;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	785 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	786
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	787
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	788 ngx_int_t
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	789 ngx_quic_send_new_token(ngx_connection_t c, ngx_quic_path_t path)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	790 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	791 time_t expires;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	792 ngx_str_t token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	793 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	794 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	795
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	796 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	797
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	798 expires = ngx_time() + NGX_QUIC_NEW_TOKEN_LIFETIME;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	799
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	800 if (ngx_quic_new_token(c, path->sockaddr, path->socklen,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	801 qc->conf->av_token_key, &token, NULL, expires, 0)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	802 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	803 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	804 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	805 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	806
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	807 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	808 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	809 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	810 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	811
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	812 frame->level = ssl_encryption_application;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	813 frame->type = NGX_QUIC_FT_NEW_TOKEN;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	814 frame->u.token.length = token.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	815 frame->u.token.data = token.data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	816
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	817 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	818
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	819 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	820 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	821
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	822
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	823 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	824 ngx_quic_send_ack(ngx_connection_t c, ngx_quic_send_ctx_t ctx)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	825 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	826 size_t len, left;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	827 uint64_t ack_delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	828 ngx_buf_t *b;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	829 ngx_uint_t i;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	830 ngx_chain_t cl, *ll;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	831 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	832 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	833
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	834 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	835
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	836 ack_delay = ngx_current_msec - ctx->largest_received;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	837 ack_delay *= 1000;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	838 ack_delay >>= qc->tp.ack_delay_exponent;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	839
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	840 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	841 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	842 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	843 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	844
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	845 ll = &frame->data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	846 b = NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	847
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	848 for (i = 0; i < ctx->nranges; i++) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	849 len = ngx_quic_create_ack_range(NULL, ctx->ranges[i].gap,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	850 ctx->ranges[i].range);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	851
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	852 left = b ? b->end - b->last : 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	853
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	854 if (left < len) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	855 cl = ngx_quic_alloc_buf(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	856 if (cl == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	857 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	858 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	859
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	860 *ll = cl;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	861 ll = &cl->next;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	862
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	863 b = cl->buf;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	864 left = b->end - b->last;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	865
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	866 if (left < len) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	867 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	868 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	869 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	870
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	871 b->last += ngx_quic_create_ack_range(b->last, ctx->ranges[i].gap,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	872 ctx->ranges[i].range);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	873
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	874 frame->u.ack.ranges_length += len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	875 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	876
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	877 *ll = NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	878
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	879 frame->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	880 frame->type = NGX_QUIC_FT_ACK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	881 frame->u.ack.largest = ctx->largest_range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	882 frame->u.ack.delay = ack_delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	883 frame->u.ack.range_count = ctx->nranges;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	884 frame->u.ack.first_range = ctx->first_range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	885
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	886 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	887
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	888 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	889 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	890
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	891
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	892 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	893 ngx_quic_send_ack_range(ngx_connection_t c, ngx_quic_send_ctx_t ctx,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	894 uint64_t smallest, uint64_t largest)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	895 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	896 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	897 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	898
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	899 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	900
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	901 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	902 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	903 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	904 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	905
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	906 frame->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	907 frame->type = NGX_QUIC_FT_ACK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	908 frame->u.ack.largest = largest;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	909 frame->u.ack.delay = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	910 frame->u.ack.range_count = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	911 frame->u.ack.first_range = largest - smallest;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	912
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	913 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	914
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	915 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	916 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	917
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	918
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	919 ssize_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	920 ngx_quic_frame_sendto(ngx_connection_t c, ngx_quic_frame_t frame,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	921 size_t min, struct sockaddr *sockaddr, socklen_t socklen)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	922 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	923 ssize_t len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	924 ngx_str_t res;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	925 ngx_quic_header_t pkt;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	926 ngx_quic_send_ctx_t *ctx;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	927 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	928
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	929 static u_char src[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	930 static u_char dst[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	931
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	932 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	933
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	934 ngx_memzero(&pkt, sizeof(ngx_quic_header_t));
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	935
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	936 len = ngx_quic_create_frame(NULL, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	937 if (len > NGX_QUIC_MAX_UDP_PAYLOAD_SIZE) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	938 return -1;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	939 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	940
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	941 ngx_quic_log_frame(c->log, frame, 1);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	942
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	943 len = ngx_quic_create_frame(src, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	944 if (len == -1) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	945 return -1;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	946 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	947
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	948 if (len < (ssize_t) min) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	949 ngx_memset(src + len, NGX_QUIC_FT_PADDING, min - len);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	950 len = min;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	951 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	952
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	953 pkt.keys = qc->keys;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	954 pkt.flags = NGX_QUIC_PKT_FIXED_BIT;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	955
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	956 if (qc->key_phase) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	957 pkt.flags \|= NGX_QUIC_PKT_KPHASE;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	958 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	959
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	960 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_application);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	961
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	962 ngx_quic_set_packet_number(&pkt, ctx);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	963
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	964 pkt.version = qc->version;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	965 pkt.log = c->log;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	966 pkt.level = ctx->level;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	967
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	968 pkt.dcid.data = qc->socket->cid->id;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	969 pkt.dcid.len = qc->socket->cid->len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	970
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	971 pkt.scid.data = qc->socket->sid.id;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	972 pkt.scid.len = qc->socket->sid.len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	973
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	974 pkt.payload.data = src;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	975 pkt.payload.len = len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	976
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	977 res.data = dst;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	978
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	979 if (ngx_quic_encrypt(&pkt, &res) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	980 return -1;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	981 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	982
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	983 ctx->pnum++;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	984
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	985 len = ngx_quic_send(c, res.data, res.len, sockaddr, socklen);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	986
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	987 return len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	988 }

Mercurial > hg > nginx

annotate src/event/quic/ngx_event_quic_output.c @ 8781:81d491f0dc8c quic