nginx: src/event/quic/ngx_event_quic

annotate src/event/quic/ngx_event_quic_output.c @ 8763:4117aa7fa38e quic

QUIC: connection migration. The patch adds proper transitions between multiple networking addresses that can be used by a single quic connection. New networking paths are validated using PATH_CHALLENGE/PATH_RESPONSE frames.

author	Vladimir Homutov <vl@nginx.com>
date	Thu, 29 Apr 2021 15:35:02 +0300
parents	bc910a5ec737
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 @ 8763:4117aa7fa38e quic