nginx: src/event/quic/ngx_event_quic

annotate src/event/quic/ngx_event_quic_output.c @ 8797:4715f3e669f1 quic

QUIC: updated specification references. This includes updating citations and further clarification.

author	Sergey Kandaurov <pluknet@nginx.com>
date	Wed, 16 Jun 2021 11:55:12 +0300
parents	4117aa7fa38e
children	5b0c229ba5fe

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 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	26 * RFC 9000, 10.3. Stateless Reset
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	27 *
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	28 * 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	29 * packets. With the set of AEAD functions defined in [QUIC-TLS],
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	30 * short header packets that are smaller than 21 bytes are never valid.
8751 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_PKT_LEN 21
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	33
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	34 #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	35 #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	36
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	37 #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	38
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	39
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	40 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	41 ngx_quic_socket_t *qsock);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	42 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	43 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	44 ngx_quic_socket_t *qsock);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	45 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	46 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	47 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	48 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	49 ngx_quic_send_ctx_t *ctx);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	50
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	51
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	52 size_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	53 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	54 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	55 /* TODO: path MTU discovery */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	56
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	57 #if (NGX_HAVE_INET6)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	58 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	59 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	60 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	61 #endif
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 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	64 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	65
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	66
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	67 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	68 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	69 {
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	70 ngx_quic_connection_t *qc;
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 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	73
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	74 if (ngx_quic_socket_output(c, qc->socket) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	75 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	76 }
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 ngx_quic_set_lost_timer(c);
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 return NGX_OK;
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
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	83
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	84 static ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	85 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	86 {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	87 off_t max;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	88 size_t len, min, in_flight;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	89 ssize_t n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	90 u_char *p;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	91 ngx_uint_t i, pad;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	92 ngx_quic_path_t *path;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	93 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	94 ngx_quic_congestion_t *cg;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	95 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	96 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	97
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	98 c->log->action = "sending frames";
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	99
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	100 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	101 cg = &qc->congestion;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	102
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	103 in_flight = cg->in_flight;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	104
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	105 path = qsock->path;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	106
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	107 for ( ;; ) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	108 p = dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	109
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	110 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	111 NGX_QUIC_MAX_UDP_PAYLOAD_SIZE);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	112
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	113 if (path->state != NGX_QUIC_PATH_VALIDATED) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	114 max = path->received * 3;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	115 max = (path->sent >= max) ? 0 : max - path->sent;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	116
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	117 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	118 }
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 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	121
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	122 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	123
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	124 ctx = &qc->send_ctx[i];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	125
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	126 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	127 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	128 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	129
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	130 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	131 ? 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	132
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	133 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	134 if (n == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	135 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	136 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	137
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	138 p += n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	139 len -= n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	140 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	141
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	142 len = p - dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	143 if (len == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	144 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	145 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	146
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	147 n = ngx_quic_send(c, dst, len, path->sockaddr, path->socklen);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	148
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	149 if (n == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	150 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	151 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	152
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	153 path->sent += len;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	154 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	155
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	156 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	157 qc->send_timer_set = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	158 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	159 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	160
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 return NGX_OK;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	165
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	166 static ngx_uint_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	167 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	168 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	169 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	170 ngx_quic_frame_t *f;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	171 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	172 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	173
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	174 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	175 * RFC 9000, 14.1. Initial Datagram Size
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	176 *
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	177 * 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	178 * carrying ack-eliciting Initial packets to at least the smallest
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	179 * allowed maximum datagram size of 1200 bytes.
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	180 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	181
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	182 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	183 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	184
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	185 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	186 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	187 q = ngx_queue_next(q))
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 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	190
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	191 if (f->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	192 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	193
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	194 if (ngx_queue_empty(&ctx->frames)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	195 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	196 }
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 return 1;
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 }
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 return NGX_QUIC_SEND_CTX_LAST;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	205
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	206 static ssize_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	207 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	208 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	209 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	210 size_t len, hlen, pad_len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	211 u_char *p;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	212 ssize_t flen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	213 ngx_str_t out, res;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	214 ngx_int_t rc;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	215 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	216 ngx_msec_t now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	217 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	218 ngx_quic_frame_t *f;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	219 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	220 ngx_quic_congestion_t *cg;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	221 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	222 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	223
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	224 if (ngx_queue_empty(&ctx->frames)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	225 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	226 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	227
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	228 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	229 "quic output sock #%uL %s packet max:%uz min:%uz",
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	230 qsock->sid.seqnum, ngx_quic_level_name(ctx->level),
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	231 max, min);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	232
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	233 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	234 cg = &qc->congestion;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	235
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	236 hlen = (ctx->level == ssl_encryption_application)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	237 ? NGX_QUIC_MAX_SHORT_HEADER
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	238 : NGX_QUIC_MAX_LONG_HEADER;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	239
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	240 hlen += EVP_GCM_TLS_TAG_LEN;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	241 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	242
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	243 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	244
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	245 now = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	246 nframes = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	247 p = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	248 len = 0;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	249 has_pr = 0;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	250
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	251 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	252 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	253 q = ngx_queue_next(q))
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 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	256
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	257 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	258 max = cg->window;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	259 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	260
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	261 if (f->type == NGX_QUIC_FT_PATH_RESPONSE
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	262 \|\| f->type == NGX_QUIC_FT_PATH_CHALLENGE)
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 has_pr = 1;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	265 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	266
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	267 if (hlen + len >= max) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	268 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	269 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	270
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	271 if (hlen + len + f->len > max) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	272 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	273
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	274 if (rc == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	275 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	276 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	277
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	278 if (rc == NGX_DECLINED) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	279 break;
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 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	282
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	283 if (f->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	284 pkt.need_ack = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	285 }
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 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	288
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	289 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	290 if (flen == -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	291 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	292 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	293
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	294 len += flen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	295 p += flen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	296
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	297 f->pnum = ctx->pnum;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	298 f->first = now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	299 f->last = now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	300 f->plen = 0;
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 nframes++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	303
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	304 if (f->flush) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	305 break;
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 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	308
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	309 if (nframes == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	310 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	311 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	312
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	313 out.data = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	314 out.len = len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	315
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	316 pkt.keys = qc->keys;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	317 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	318
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	319 if (ctx->level == ssl_encryption_initial) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	320 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	321
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	322 } 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	323 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	324
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	325 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	326 if (qc->key_phase) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	327 pkt.flags \|= NGX_QUIC_PKT_KPHASE;
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 }
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 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	332
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	333 pkt.version = qc->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	334 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	335 pkt.level = ctx->level;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	336
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	337 pkt.dcid.data = qsock->cid->id;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	338 pkt.dcid.len = qsock->cid->len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	339
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	340 pkt.scid.data = qsock->sid.id;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	341 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	342
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	343 pad_len = 4;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	344
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	345 if (min \|\| has_pr) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	346 hlen = EVP_GCM_TLS_TAG_LEN
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	347 + 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	348
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	349 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	350 * RFC 9000, 8.2.1. Initiating Path Validation
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	351 *
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	352 * An endpoint MUST expand datagrams that contain a
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	353 * PATH_CHALLENGE frame to at least the smallest allowed
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	354 * maximum datagram size of 1200 bytes, unless the
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	355 * anti-amplification limit for the path does not permit
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	356 * sending a datagram of this size.
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	357 *
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	358 * (same applies to PATH_RESPONSE frames)
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
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	361 if (has_pr) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	362 min = ngx_max(1200, min);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	363 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	364
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	365 if (min > hlen + pad_len) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	366 pad_len = min - hlen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	367 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	368 }
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 if (out.len < pad_len) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	371 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	372 out.len = pad_len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	373 }
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 pkt.payload = out;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	376
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	377 res.data = data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	378
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	379 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	380 "quic packet tx %s bytes:%ui"
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	381 " 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	382 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	383 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	384
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	385 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	386 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	387 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	388
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	389 ctx->pnum++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	390
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	391 if (pkt.need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	392 /* 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	393
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	394 if (!qc->closing) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	395 q = ngx_queue_head(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	396 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	397 f->plen = res.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	398
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	399 do {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	400 q = ngx_queue_head(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	401 ngx_queue_remove(q);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	402 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	403 } while (--nframes);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	404 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	405
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	406 cg->in_flight += res.len;
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 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	409 "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	410 }
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 while (nframes--) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	413 q = ngx_queue_head(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	414 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	415
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	416 ngx_queue_remove(q);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	417 ngx_quic_free_frame(c, f);
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	420 return res.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	421 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	422
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 static ssize_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	425 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	426 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	427 {
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	428 ngx_buf_t b;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	429 socklen_t orig_socklen;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	430 ngx_chain_t cl, *res;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	431 struct sockaddr *orig_sockaddr;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	432
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	433 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	434
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	435 b.pos = b.start = buf;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	436 b.last = b.end = buf + len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	437 b.last_buf = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	438 b.temporary = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	439
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	440 cl.buf = &b;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	441 cl.next= NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	442
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	443 orig_socklen = c->socklen;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	444 orig_sockaddr = c->sockaddr;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	445
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	446 c->sockaddr = sockaddr;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	447 c->socklen = socklen;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	448
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	449 res = c->send_chain(c, &cl, 0);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	450
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	451 c->sockaddr = orig_sockaddr;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	452 c->socklen = orig_socklen;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	453
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	454 if (res == NGX_CHAIN_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	455 return NGX_ERROR;
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 return len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	459 }
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	462 static void
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	463 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	464 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	465 uint64_t delta;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	466
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	467 delta = ctx->pnum - ctx->largest_ack;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	468 pkt->number = ctx->pnum;
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 if (delta <= 0x7F) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	471 pkt->num_len = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	472 pkt->trunc = ctx->pnum & 0xff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	473
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	474 } else if (delta <= 0x7FFF) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	475 pkt->num_len = 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	476 pkt->flags \|= 0x1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	477 pkt->trunc = ctx->pnum & 0xffff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	478
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	479 } else if (delta <= 0x7FFFFF) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	480 pkt->num_len = 3;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	481 pkt->flags \|= 0x2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	482 pkt->trunc = ctx->pnum & 0xffffff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	483
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	484 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	485 pkt->num_len = 4;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	486 pkt->flags \|= 0x3;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	487 pkt->trunc = ctx->pnum & 0xffffffff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	488 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	489 }
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	492 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	493 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	494 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	495 size_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	496 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	497 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	498
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	499 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	500 "sending version negotiation packet");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	501
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	502 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	503 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	504 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	505 pkt.scid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	506
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	507 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	508
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	509 #ifdef NGX_QUIC_DEBUG_PACKETS
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	510 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	511 "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	512 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	513
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	514 (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	515
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	516 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	517 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	518
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 int
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	521 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	522 uint8_t alert)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	523 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	524 ngx_connection_t *c;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	525 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	526
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	527 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	528
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	529 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	530 "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	531 (int) level, (int) alert);
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 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	534 if (qc == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	535 return 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	536 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	537
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	538 qc->error_level = level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	539 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	540 qc->error_reason = "TLS alert";
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	541 qc->error_app = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	542 qc->error_ftype = 0;
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 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	545 return 0;
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 return 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	549 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	550
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 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	553 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	554 ngx_quic_header_t *pkt)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	555 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	556 u_char *token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	557 size_t len, max;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	558 uint16_t rndbytes;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	559 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	560
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	561 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	562 "quic handle stateless reset output");
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_PKT_LEN) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	565 return NGX_DECLINED;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	568 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	569 len = pkt->len - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	570
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	571 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	572 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	573
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	574 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	575 return NGX_ERROR;
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 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	579 + NGX_QUIC_MIN_SR_PACKET;
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 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	583 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	586 buf[0] &= ~NGX_QUIC_PKT_LONG;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	587 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	588
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	589 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	590
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	591 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	592 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	593 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	594 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	595 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	596
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	597 (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	598
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	599 return NGX_DECLINED;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	600 }
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	603 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	604 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	605 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	606 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	607 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	608
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	609 qc = ngx_quic_get_connection(c);
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->draining) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	612 return NGX_OK;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	615 if (qc->closing
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	616 && 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	617 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	618 /* dot not send CC too often */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	619 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	620 }
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 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	623 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	624 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	625 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	626
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	627 frame->level = qc->error_level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	628 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	629 : NGX_QUIC_FT_CONNECTION_CLOSE;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	630 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	631 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	632
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	633 if (qc->error_reason) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	634 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	635 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	636 }
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 ngx_quic_queue_frame(qc, frame);
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 qc->last_cc = ngx_current_msec;
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 return ngx_quic_output(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	643 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	644
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 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	647 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	648 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	649 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	650 ssize_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	651 ngx_str_t res;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	652 ngx_quic_frame_t frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	653 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	654
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	655 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	656 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	657
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	658 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	659 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	660
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	661 frame.level = inpkt->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	662 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	663 frame.u.close.error_code = err;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	664
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	665 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	666 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	667
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	668 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	669 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	670 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	671 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	672
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	673 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	674
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	675 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	676 if (len == -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	677 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	678 }
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 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	681 if (pkt.keys == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	682 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	683 }
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 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	686 inpkt->version)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	687 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	688 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	689 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	692 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	693 \| NGX_QUIC_PKT_INITIAL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	694
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	695 pkt.num_len = 1;
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.num = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	698 * pkt.trunc = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	699 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	700
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	701 pkt.version = inpkt->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	702 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	703 pkt.level = inpkt->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	704 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	705 pkt.scid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	706 pkt.payload.data = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	707 pkt.payload.len = len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	708
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	709 res.data = dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	710
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	711 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	712 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	713 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	714
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	715 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	716 == NGX_ERROR)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	717 {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	718 return NGX_ERROR;
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 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	722 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	723
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 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	726 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	727 ngx_quic_header_t *inpkt)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	728 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	729 time_t expires;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	730 ssize_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	731 ngx_str_t res, token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	732 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	733
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	734 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	735 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	736
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	737 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	738
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	739 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	740 &token, &inpkt->dcid, expires, 1)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	741 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	742 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	743 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	744 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	745
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	746 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	747 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	748 pkt.version = inpkt->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	749 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	750
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	751 pkt.odcid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	752 pkt.dcid = inpkt->scid;
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 /* TODO: generate routable dcid */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	755 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	756 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	759 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	760 pkt.scid.data = dcid;
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 pkt.token = token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	763
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	764 res.data = buf;
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 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	767 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	768 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	769
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	770 #ifdef NGX_QUIC_DEBUG_PACKETS
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	771 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	772 "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	773 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	774
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	775 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	776 if (len == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	777 return NGX_ERROR;
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 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	781 "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	782
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	783 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	784 * RFC 9000, 17.2.5.1. Sending a Retry Packet
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	785 *
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	786 * A server MUST NOT send more than one Retry
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	787 * 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	788 * 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	789 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	790 return NGX_DONE;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	791 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	792
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	793
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	794 ngx_int_t
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	795 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	796 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	797 time_t expires;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	798 ngx_str_t token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	799 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	800 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	801
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	802 qc = ngx_quic_get_connection(c);
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 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	805
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	806 if (ngx_quic_new_token(c, path->sockaddr, path->socklen,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	807 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	808 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	809 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	810 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	813 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	814 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	815 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	818 frame->level = ssl_encryption_application;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	819 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	820 frame->u.token.length = token.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	821 frame->u.token.data = token.data;
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_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	824
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	825 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	826 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	827
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	828
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	829 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	830 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	831 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	832 size_t len, left;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	833 uint64_t ack_delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	834 ngx_buf_t *b;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	835 ngx_uint_t i;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	836 ngx_chain_t cl, *ll;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	837 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	838 ngx_quic_connection_t *qc;
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 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	841
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	842 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	843 ack_delay *= 1000;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	844 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	845
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	846 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	847 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	848 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	849 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	850
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	851 ll = &frame->data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	852 b = NULL;
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 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	855 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	856 ctx->ranges[i].range);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	857
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	858 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	859
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	860 if (left < len) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	861 cl = ngx_quic_alloc_buf(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	862 if (cl == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	863 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	864 }
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 *ll = cl;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	867 ll = &cl->next;
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 b = cl->buf;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	870 left = b->end - b->last;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	871
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	872 if (left < len) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	873 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	874 }
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 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	878 ctx->ranges[i].range);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	879
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	880 frame->u.ack.ranges_length += len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	881 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	882
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	883 *ll = NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	884
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	885 frame->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	886 frame->type = NGX_QUIC_FT_ACK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	887 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	888 frame->u.ack.delay = ack_delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	889 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	890 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	891
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	892 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	893
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	894 return NGX_OK;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	897
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	898 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	899 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	900 uint64_t smallest, uint64_t largest)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	901 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	902 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	903 ngx_quic_connection_t *qc;
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 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	906
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	907 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	908 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	909 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	910 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	911
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	912 frame->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	913 frame->type = NGX_QUIC_FT_ACK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	914 frame->u.ack.largest = largest;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	915 frame->u.ack.delay = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	916 frame->u.ack.range_count = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	917 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	918
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	919 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	920
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	921 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	922 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	923
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	924
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	925 ssize_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	926 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	927 size_t min, struct sockaddr *sockaddr, socklen_t socklen)
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 ssize_t len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	930 ngx_str_t res;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	931 ngx_quic_header_t pkt;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	932 ngx_quic_send_ctx_t *ctx;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	933 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	934
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	935 static u_char src[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	936 static u_char dst[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	937
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	938 qc = ngx_quic_get_connection(c);
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 ngx_memzero(&pkt, sizeof(ngx_quic_header_t));
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	941
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	942 len = ngx_quic_create_frame(NULL, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	943 if (len > NGX_QUIC_MAX_UDP_PAYLOAD_SIZE) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	944 return -1;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	945 }
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 ngx_quic_log_frame(c->log, frame, 1);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	948
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	949 len = ngx_quic_create_frame(src, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	950 if (len == -1) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	951 return -1;
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
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	954 if (len < (ssize_t) min) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	955 ngx_memset(src + len, NGX_QUIC_FT_PADDING, min - len);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	956 len = min;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	957 }
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 pkt.keys = qc->keys;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	960 pkt.flags = NGX_QUIC_PKT_FIXED_BIT;
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 if (qc->key_phase) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	963 pkt.flags \|= NGX_QUIC_PKT_KPHASE;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	964 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	965
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	966 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_application);
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 ngx_quic_set_packet_number(&pkt, ctx);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	969
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	970 pkt.version = qc->version;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	971 pkt.log = c->log;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	972 pkt.level = ctx->level;
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.dcid.data = qc->socket->cid->id;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	975 pkt.dcid.len = qc->socket->cid->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 pkt.scid.data = qc->socket->sid.id;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	978 pkt.scid.len = qc->socket->sid.len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	979
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	980 pkt.payload.data = src;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	981 pkt.payload.len = len;
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 res.data = dst;
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 if (ngx_quic_encrypt(&pkt, &res) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	986 return -1;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	987 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	988
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	989 ctx->pnum++;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	990
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	991 len = ngx_quic_send(c, res.data, res.len, sockaddr, socklen);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	992
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	993 return len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	994 }

Mercurial > hg > nginx

annotate src/event/quic/ngx_event_quic_output.c @ 8797:4715f3e669f1 quic