nginx: src/event/quic/ngx_event_quic

annotate src/event/quic/ngx_event_quic_output.c @ 9147:58afcd72446f

QUIC: path MTU discovery. MTU selection starts by doubling the initial MTU until the first failure. Then binary search is used to find the path MTU.

author	Roman Arutyunyan <arut@nginx.com>
date	Mon, 14 Aug 2023 09:21:27 +0400
parents	f3412ec3b6d1
children	60c4e8d3151f

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
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	13 #define NGX_QUIC_MAX_UDP_SEGMENT_BUF 65487 /* 65K - IPv6 header */
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	14 #define NGX_QUIC_MAX_SEGMENTS 64 /* UDP_MAX_SEGMENTS */
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	15
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	16 #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	17 #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	18 #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	19 /* 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	20
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	21 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	22 * RFC 9000, 10.3. Stateless Reset
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	23 *
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	24 * 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	25 * 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	26 * 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	27 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	28 #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	29
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	30 #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	31 #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	32
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	33 #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	34
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	35 #define NGX_QUIC_SOCKET_RETRY_DELAY 10 /* ms, for NGX_AGAIN on write */
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	36
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	37
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	38 static ngx_int_t ngx_quic_create_datagrams(ngx_connection_t *c);
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	39 static void ngx_quic_commit_send(ngx_connection_t c, ngx_quic_send_ctx_t ctx);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	40 static void ngx_quic_revert_send(ngx_connection_t c, ngx_quic_send_ctx_t ctx,
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	41 uint64_t pnum);
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	42 #if ((NGX_HAVE_UDP_SEGMENT) && (NGX_HAVE_MSGHDR_MSG_CONTROL))
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	43 static ngx_uint_t ngx_quic_allow_segmentation(ngx_connection_t *c);
e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	44 static ngx_int_t ngx_quic_create_segments(ngx_connection_t *c);
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	45 static ssize_t ngx_quic_send_segments(ngx_connection_t c, u_char buf,
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	46 size_t len, struct sockaddr *sockaddr, socklen_t socklen, size_t segment);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	47 #endif
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	48 static ssize_t ngx_quic_output_packet(ngx_connection_t *c,
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	49 ngx_quic_send_ctx_t ctx, u_char data, size_t max, size_t min);
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	50 static void ngx_quic_init_packet(ngx_connection_t c, ngx_quic_send_ctx_t ctx,
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	51 ngx_quic_header_t pkt, ngx_quic_path_t path);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	52 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	53 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	54 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	55 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	56 ngx_quic_send_ctx_t *ctx);
8941 0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	57 static size_t ngx_quic_path_limit(ngx_connection_t c, ngx_quic_path_t path,
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	58 size_t size);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	59
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 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	62 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	63 {
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	64 size_t in_flight;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	65 ngx_int_t rc;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	66 ngx_quic_congestion_t *cg;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	67 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	68
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	69 c->log->action = "sending frames";
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	70
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	71 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	72 cg = &qc->congestion;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	73
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	74 in_flight = cg->in_flight;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	75
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	76 #if ((NGX_HAVE_UDP_SEGMENT) && (NGX_HAVE_MSGHDR_MSG_CONTROL))
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	77 if (ngx_quic_allow_segmentation(c)) {
e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	78 rc = ngx_quic_create_segments(c);
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	79 } else
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	80 #endif
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	81 {
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	82 rc = ngx_quic_create_datagrams(c);
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	83 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	84
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	85 if (rc != NGX_OK) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	86 return NGX_ERROR;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	87 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	88
9001 868e1b76c956 QUIC: do not arm loss detection timer if nothing was sent. Sergey Kandaurov <pluknet@nginx.com> parents: 9000 diff changeset	89 if (in_flight == cg->in_flight \|\| qc->closing) {
868e1b76c956 QUIC: do not arm loss detection timer if nothing was sent. Sergey Kandaurov <pluknet@nginx.com> parents: 9000 diff changeset	90 /* no ack-eliciting data was sent or we are done */
868e1b76c956 QUIC: do not arm loss detection timer if nothing was sent. Sergey Kandaurov <pluknet@nginx.com> parents: 9000 diff changeset	91 return NGX_OK;
868e1b76c956 QUIC: do not arm loss detection timer if nothing was sent. Sergey Kandaurov <pluknet@nginx.com> parents: 9000 diff changeset	92 }
868e1b76c956 QUIC: do not arm loss detection timer if nothing was sent. Sergey Kandaurov <pluknet@nginx.com> parents: 9000 diff changeset	93
868e1b76c956 QUIC: do not arm loss detection timer if nothing was sent. Sergey Kandaurov <pluknet@nginx.com> parents: 9000 diff changeset	94 if (!qc->send_timer_set) {
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	95 qc->send_timer_set = 1;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	96 ngx_add_timer(c->read, qc->tp.max_idle_timeout);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	97 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	98
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	99 ngx_quic_set_lost_timer(c);
e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	100
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	101 return NGX_OK;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	102 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	103
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	104
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	105 static ngx_int_t
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	106 ngx_quic_create_datagrams(ngx_connection_t *c)
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	107 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	108 size_t len, min;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	109 ssize_t n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	110 u_char *p;
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	111 uint64_t preserved_pnum[NGX_QUIC_SEND_CTX_LAST];
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	112 ngx_uint_t i, pad;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	113 ngx_quic_path_t *path;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	114 ngx_quic_send_ctx_t *ctx;
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8822 diff changeset	115 ngx_quic_congestion_t *cg;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	116 ngx_quic_connection_t *qc;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	117 static u_char dst[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	118
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	119 qc = ngx_quic_get_connection(c);
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8822 diff changeset	120 cg = &qc->congestion;
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	121 path = qc->path;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	122
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8822 diff changeset	123 while (cg->in_flight < cg->window) {
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8822 diff changeset	124
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	125 p = dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	126
9147 58afcd72446f QUIC: path MTU discovery. Roman Arutyunyan <arut@nginx.com> parents: 9146 diff changeset	127 len = ngx_quic_path_limit(c, path, path->mtu);
8751 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 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	130
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	131 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	132
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	133 ctx = &qc->send_ctx[i];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	134
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	135 preserved_pnum[i] = ctx->pnum;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	136
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	137 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	138 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	139 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	140
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	141 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	142 ? 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	143
8891 c5155a0cb12f QUIC: fixed processing of minimum packet size. Vladimir Homutov <vl@nginx.com> parents: 8823 diff changeset	144 if (min > len) {
9000 cd8018bc81a5 QUIC: fixed padding of initial packets in case of limited path. Vladimir Homutov <vl@nginx.com> parents: 8994 diff changeset	145 /* padding can't be applied - avoid sending the packet */
cd8018bc81a5 QUIC: fixed padding of initial packets in case of limited path. Vladimir Homutov <vl@nginx.com> parents: 8994 diff changeset	146
9006 5f78174d1ac1 QUIC: fixed output context restoring. Vladimir Homutov <vl@nginx.com> parents: 9001 diff changeset	147 while (i-- > 0) {
9000 cd8018bc81a5 QUIC: fixed padding of initial packets in case of limited path. Vladimir Homutov <vl@nginx.com> parents: 8994 diff changeset	148 ctx = &qc->send_ctx[i];
cd8018bc81a5 QUIC: fixed padding of initial packets in case of limited path. Vladimir Homutov <vl@nginx.com> parents: 8994 diff changeset	149 ngx_quic_revert_send(c, ctx, preserved_pnum[i]);
cd8018bc81a5 QUIC: fixed padding of initial packets in case of limited path. Vladimir Homutov <vl@nginx.com> parents: 8994 diff changeset	150 }
cd8018bc81a5 QUIC: fixed padding of initial packets in case of limited path. Vladimir Homutov <vl@nginx.com> parents: 8994 diff changeset	151
cd8018bc81a5 QUIC: fixed padding of initial packets in case of limited path. Vladimir Homutov <vl@nginx.com> parents: 8994 diff changeset	152 return NGX_OK;
8891 c5155a0cb12f QUIC: fixed processing of minimum packet size. Vladimir Homutov <vl@nginx.com> parents: 8823 diff changeset	153 }
c5155a0cb12f QUIC: fixed processing of minimum packet size. Vladimir Homutov <vl@nginx.com> parents: 8823 diff changeset	154
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	155 n = ngx_quic_output_packet(c, ctx, p, len, min);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	156 if (n == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	157 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	158 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	159
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	160 p += n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	161 len -= n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	162 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	163
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	164 len = p - dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	165 if (len == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	166 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	167 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	168
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	169 n = ngx_quic_send(c, dst, len, path->sockaddr, path->socklen);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	170
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	171 if (n == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	172 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	173 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	174
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	175 if (n == NGX_AGAIN) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	176 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	177 ngx_quic_revert_send(c, &qc->send_ctx[i], preserved_pnum[i]);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	178 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	179
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	180 ngx_add_timer(&qc->push, NGX_QUIC_SOCKET_RETRY_DELAY);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	181 break;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	182 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	183
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	184 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	185 ngx_quic_commit_send(c, &qc->send_ctx[i]);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	186 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	187
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	188 path->sent += len;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	189 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	190
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	191 return NGX_OK;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	192 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	193
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	194
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	195 static void
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	196 ngx_quic_commit_send(ngx_connection_t c, ngx_quic_send_ctx_t ctx)
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	197 {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	198 ngx_queue_t *q;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	199 ngx_quic_frame_t *f;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	200 ngx_quic_congestion_t *cg;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	201 ngx_quic_connection_t *qc;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	202
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	203 qc = ngx_quic_get_connection(c);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	204
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	205 cg = &qc->congestion;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	206
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	207 while (!ngx_queue_empty(&ctx->sending)) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	208
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	209 q = ngx_queue_head(&ctx->sending);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	210 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	211
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	212 ngx_queue_remove(q);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	213
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	214 if (f->pkt_need_ack && !qc->closing) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	215 ngx_queue_insert_tail(&ctx->sent, q);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	216
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	217 cg->in_flight += f->plen;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	218
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	219 } else {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	220 ngx_quic_free_frame(c, f);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	221 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	222 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	223
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	224 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	225 "quic congestion send if:%uz", cg->in_flight);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	226 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	227
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	228
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	229 static void
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	230 ngx_quic_revert_send(ngx_connection_t c, ngx_quic_send_ctx_t ctx,
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	231 uint64_t pnum)
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	232 {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	233 ngx_queue_t *q;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	234
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	235 while (!ngx_queue_empty(&ctx->sending)) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	236
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	237 q = ngx_queue_last(&ctx->sending);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	238 ngx_queue_remove(q);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	239 ngx_queue_insert_head(&ctx->frames, q);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	240 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	241
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	242 ctx->pnum = pnum;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	243 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	244
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	245
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	246 #if ((NGX_HAVE_UDP_SEGMENT) && (NGX_HAVE_MSGHDR_MSG_CONTROL))
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	247
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	248 static ngx_uint_t
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	249 ngx_quic_allow_segmentation(ngx_connection_t *c)
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	250 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	251 size_t bytes, len;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	252 ngx_queue_t *q;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	253 ngx_quic_frame_t *f;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	254 ngx_quic_send_ctx_t *ctx;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	255 ngx_quic_connection_t *qc;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	256
8815 8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	257 qc = ngx_quic_get_connection(c);
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	258
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	259 if (!qc->conf->gso_enabled) {
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	260 return 0;
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	261 }
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	262
9144 bba136612fe4 QUIC: removed path->limited flag. Roman Arutyunyan <arut@nginx.com> parents: 9143 diff changeset	263 if (!qc->path->validated) {
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	264 /* don't even try to be faster on non-validated paths */
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	265 return 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	266 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	267
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	268 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_initial);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	269 if (!ngx_queue_empty(&ctx->frames)) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	270 return 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	271 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	272
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	273 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_handshake);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	274 if (!ngx_queue_empty(&ctx->frames)) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	275 return 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	276 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	277
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	278 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_application);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	279
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	280 bytes = 0;
9147 58afcd72446f QUIC: path MTU discovery. Roman Arutyunyan <arut@nginx.com> parents: 9146 diff changeset	281 len = ngx_min(qc->path->mtu, NGX_QUIC_MAX_UDP_SEGMENT_BUF);
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	282
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	283 for (q = ngx_queue_head(&ctx->frames);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	284 q != ngx_queue_sentinel(&ctx->frames);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	285 q = ngx_queue_next(q))
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	286 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	287 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	288
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	289 bytes += f->len;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	290
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	291 if (bytes > len * 3) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	292 /* require at least ~3 full packets to batch */
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	293 return 1;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	294 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	295 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	296
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	297 return 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	298 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	299
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	300
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	301 static ngx_int_t
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	302 ngx_quic_create_segments(ngx_connection_t *c)
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	303 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	304 size_t len, segsize;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	305 ssize_t n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	306 u_char p, end;
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	307 uint64_t preserved_pnum;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	308 ngx_uint_t nseg;
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	309 ngx_quic_path_t *path;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	310 ngx_quic_send_ctx_t *ctx;
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8822 diff changeset	311 ngx_quic_congestion_t *cg;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	312 ngx_quic_connection_t *qc;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	313 static u_char dst[NGX_QUIC_MAX_UDP_SEGMENT_BUF];
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	314
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	315 qc = ngx_quic_get_connection(c);
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8822 diff changeset	316 cg = &qc->congestion;
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	317 path = qc->path;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	318
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	319 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_application);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	320
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	321 if (ngx_quic_generate_ack(c, ctx) != NGX_OK) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	322 return NGX_ERROR;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	323 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	324
9147 58afcd72446f QUIC: path MTU discovery. Roman Arutyunyan <arut@nginx.com> parents: 9146 diff changeset	325 segsize = ngx_min(path->mtu, NGX_QUIC_MAX_UDP_SEGMENT_BUF);
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	326 p = dst;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	327 end = dst + sizeof(dst);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	328
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	329 nseg = 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	330
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	331 preserved_pnum = ctx->pnum;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	332
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	333 for ( ;; ) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	334
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	335 len = ngx_min(segsize, (size_t) (end - p));
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	336
9140 e9a003d40485 QUIC: fixed congesion control in GSO mode. Roman Arutyunyan <arut@nginx.com> parents: 9139 diff changeset	337 if (len && cg->in_flight + (p - dst) < cg->window) {
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	338
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	339 n = ngx_quic_output_packet(c, ctx, p, len, len);
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	340 if (n == NGX_ERROR) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	341 return NGX_ERROR;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	342 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	343
8899 25b87b392ce0 QUIC: fixed GSO packets count. Vladimir Homutov <vl@nginx.com> parents: 8894 diff changeset	344 if (n) {
25b87b392ce0 QUIC: fixed GSO packets count. Vladimir Homutov <vl@nginx.com> parents: 8894 diff changeset	345 p += n;
25b87b392ce0 QUIC: fixed GSO packets count. Vladimir Homutov <vl@nginx.com> parents: 8894 diff changeset	346 nseg++;
25b87b392ce0 QUIC: fixed GSO packets count. Vladimir Homutov <vl@nginx.com> parents: 8894 diff changeset	347 }
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	348
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	349 } else {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	350 n = 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	351 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	352
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	353 if (p == dst) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	354 break;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	355 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	356
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	357 if (n == 0 \|\| nseg == NGX_QUIC_MAX_SEGMENTS) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	358 n = ngx_quic_send_segments(c, dst, p - dst, path->sockaddr,
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	359 path->socklen, segsize);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	360 if (n == NGX_ERROR) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	361 return NGX_ERROR;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	362 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	363
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	364 if (n == NGX_AGAIN) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	365 ngx_quic_revert_send(c, ctx, preserved_pnum);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	366
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	367 ngx_add_timer(&qc->push, NGX_QUIC_SOCKET_RETRY_DELAY);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	368 break;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	369 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	370
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	371 ngx_quic_commit_send(c, ctx);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	372
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	373 path->sent += n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	374
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	375 p = dst;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	376 nseg = 0;
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	377 preserved_pnum = ctx->pnum;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	378 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	379 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	380
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	381 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	382 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	383
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	384
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	385 static ssize_t
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	386 ngx_quic_send_segments(ngx_connection_t c, u_char buf, size_t len,
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	387 struct sockaddr *sockaddr, socklen_t socklen, size_t segment)
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	388 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	389 size_t clen;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	390 ssize_t n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	391 uint16_t *valp;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	392 struct iovec iov;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	393 struct msghdr msg;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	394 struct cmsghdr *cmsg;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	395
8976 4646a981111f QUIC: fixed macro style. Vladimir Homutov <vl@nginx.com> parents: 8973 diff changeset	396 #if (NGX_HAVE_ADDRINFO_CMSG)
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	397 char msg_control[CMSG_SPACE(sizeof(uint16_t))
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	398 + CMSG_SPACE(sizeof(ngx_addrinfo_t))];
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	399 #else
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	400 char msg_control[CMSG_SPACE(sizeof(uint16_t))];
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	401 #endif
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	402
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	403 ngx_memzero(&msg, sizeof(struct msghdr));
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	404 ngx_memzero(msg_control, sizeof(msg_control));
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	405
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	406 iov.iov_len = len;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	407 iov.iov_base = buf;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	408
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	409 msg.msg_iov = &iov;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	410 msg.msg_iovlen = 1;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	411
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	412 msg.msg_name = sockaddr;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	413 msg.msg_namelen = socklen;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	414
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	415 msg.msg_control = msg_control;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	416 msg.msg_controllen = sizeof(msg_control);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	417
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	418 cmsg = CMSG_FIRSTHDR(&msg);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	419
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	420 cmsg->cmsg_level = SOL_UDP;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	421 cmsg->cmsg_type = UDP_SEGMENT;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	422 cmsg->cmsg_len = CMSG_LEN(sizeof(uint16_t));
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	423
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	424 clen = CMSG_SPACE(sizeof(uint16_t));
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	425
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	426 valp = (void *) CMSG_DATA(cmsg);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	427 *valp = segment;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	428
8976 4646a981111f QUIC: fixed macro style. Vladimir Homutov <vl@nginx.com> parents: 8973 diff changeset	429 #if (NGX_HAVE_ADDRINFO_CMSG)
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	430 if (c->listening && c->listening->wildcard && c->local_sockaddr) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	431 cmsg = CMSG_NXTHDR(&msg, cmsg);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	432 clen += ngx_set_srcaddr_cmsg(cmsg, c->local_sockaddr);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	433 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	434 #endif
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	435
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	436 msg.msg_controllen = clen;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	437
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	438 n = ngx_sendmsg(c, &msg, 0);
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	439 if (n < 0) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	440 return n;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	441 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	442
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	443 c->sent += n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	444
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	445 return n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	446 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	447
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	448 #endif
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	449
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	450
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	451
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	452 static ngx_uint_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	453 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	454 {
9009 e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	455 ngx_uint_t i;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	456 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	457 ngx_quic_frame_t *f;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	458 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	459 ngx_quic_connection_t *qc;
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 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	462 * 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	463 *
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	464 * 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	465 * 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	466 * 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	467 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	468
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	469 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	470 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	471
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	472 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	473 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	474 q = ngx_queue_next(q))
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	475 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	476 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	477
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	478 if (f->need_ack) {
9009 e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	479 for (i = 0; i + 1 < NGX_QUIC_SEND_CTX_LAST; i++) {
e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	480 ctx = &qc->send_ctx[i + 1];
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	481
9009 e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	482 if (ngx_queue_empty(&ctx->frames)) {
e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	483 break;
e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	484 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	485 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	486
9009 e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	487 return i;
8751 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 return NGX_QUIC_SEND_CTX_LAST;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	492 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	493
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 static ssize_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	496 ngx_quic_output_packet(ngx_connection_t c, ngx_quic_send_ctx_t ctx,
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	497 u_char *data, size_t max, size_t min)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	498 {
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	499 size_t len, pad, min_payload, max_payload;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	500 u_char *p;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	501 ssize_t flen;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	502 ngx_str_t res;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	503 ngx_int_t rc;
9145 93aee926d27f QUIC: removed explicit packet padding for certain frames. Roman Arutyunyan <arut@nginx.com> parents: 9144 diff changeset	504 ngx_uint_t nframes;
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	505 ngx_msec_t now;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	506 ngx_queue_t *q;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	507 ngx_quic_frame_t *f;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	508 ngx_quic_header_t pkt;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	509 ngx_quic_connection_t *qc;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	510 static u_char src[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	511
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	512 if (ngx_queue_empty(&ctx->frames)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	513 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	514 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	515
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	516 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	517 "quic output %s packet max:%uz min:%uz",
e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	518 ngx_quic_level_name(ctx->level), max, min);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	519
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	520 qc = ngx_quic_get_connection(c);
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	521
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	522 ngx_quic_init_packet(c, ctx, &pkt, qc->path);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	523
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	524 min_payload = ngx_quic_payload_size(&pkt, min);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	525 max_payload = ngx_quic_payload_size(&pkt, max);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	526
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	527 /* RFC 9001, 5.4.2. Header Protection Sample */
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	528 pad = 4 - pkt.num_len;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	529 min_payload = ngx_max(min_payload, pad);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	530
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	531 if (min_payload > max_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	532 return 0;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	533 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	534
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	535 now = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	536 nframes = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	537 p = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	538 len = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	539
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	540 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	541 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	542 q = ngx_queue_next(q))
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 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	545
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	546 if (len >= max_payload) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	547 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	548 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	549
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	550 if (len + f->len > max_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	551 rc = ngx_quic_split_frame(c, f, max_payload - len);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	552
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	553 if (rc == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	554 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	557 if (rc == NGX_DECLINED) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	558 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	559 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	560 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	561
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	562 if (f->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	563 pkt.need_ack = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	564 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	565
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	566 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	567
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	568 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	569 if (flen == -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	570 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	571 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	572
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	573 len += flen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	574 p += flen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	575
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	576 f->pnum = ctx->pnum;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	577 f->first = now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	578 f->last = now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	579 f->plen = 0;
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 nframes++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	582 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	583
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	584 if (nframes == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	585 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	586 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	587
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	588 if (len < min_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	589 ngx_memset(p, NGX_QUIC_FT_PADDING, min_payload - len);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	590 len = min_payload;
9075 12b756caaf16 QUIC: fixed indentation. Sergey Kandaurov <pluknet@nginx.com> parents: 9072 diff changeset	591 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	592
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	593 pkt.payload.data = src;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	594 pkt.payload.len = len;
8751 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 res.data = data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	597
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	598 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	599 "quic packet tx %s bytes:%ui"
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	600 " need_ack:%d number:%L encoded nl:%d trunc:0x%xD",
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	601 ngx_quic_level_name(ctx->level), pkt.payload.len,
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	602 pkt.need_ack, pkt.number, pkt.num_len, pkt.trunc);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	603
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	604 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	605 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	606 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	607
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	608 ctx->pnum++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	609
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	610 if (pkt.need_ack) {
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	611 q = ngx_queue_head(&ctx->frames);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	612 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	613
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	614 f->plen = res.len;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	615 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	616
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	617 while (nframes--) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	618 q = ngx_queue_head(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	619 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	620
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	621 f->pkt_need_ack = pkt.need_ack;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	622
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	623 ngx_queue_remove(q);
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	624 ngx_queue_insert_tail(&ctx->sending, q);
8751 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 return res.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	628 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	629
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	630
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	631 static void
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	632 ngx_quic_init_packet(ngx_connection_t c, ngx_quic_send_ctx_t ctx,
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	633 ngx_quic_header_t pkt, ngx_quic_path_t path)
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	634 {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	635 ngx_quic_connection_t *qc;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	636
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	637 qc = ngx_quic_get_connection(c);
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	638
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	639 ngx_memzero(pkt, sizeof(ngx_quic_header_t));
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	640
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	641 pkt->flags = NGX_QUIC_PKT_FIXED_BIT;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	642
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	643 if (ctx->level == ssl_encryption_initial) {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	644 pkt->flags \|= NGX_QUIC_PKT_LONG \| NGX_QUIC_PKT_INITIAL;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	645
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	646 } else if (ctx->level == ssl_encryption_handshake) {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	647 pkt->flags \|= NGX_QUIC_PKT_LONG \| NGX_QUIC_PKT_HANDSHAKE;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	648
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	649 } else {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	650 if (qc->key_phase) {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	651 pkt->flags \|= NGX_QUIC_PKT_KPHASE;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	652 }
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	653 }
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	654
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	655 pkt->dcid.data = path->cid->id;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	656 pkt->dcid.len = path->cid->len;
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	657
8985 da24a78720eb QUIC: fixed handling of initial source connection id. Vladimir Homutov <vl@nginx.com> parents: 8980 diff changeset	658 pkt->scid = qc->tp.initial_scid;
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	659
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	660 pkt->version = qc->version;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	661 pkt->log = c->log;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	662 pkt->level = ctx->level;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	663
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	664 pkt->keys = qc->keys;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	665
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	666 ngx_quic_set_packet_number(pkt, ctx);
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	667 }
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	668
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	669
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	670 static ssize_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	671 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	672 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	673 {
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	674 ssize_t n;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	675 struct iovec iov;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	676 struct msghdr msg;
8976 4646a981111f QUIC: fixed macro style. Vladimir Homutov <vl@nginx.com> parents: 8973 diff changeset	677 #if (NGX_HAVE_ADDRINFO_CMSG)
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	678 struct cmsghdr *cmsg;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	679 char msg_control[CMSG_SPACE(sizeof(ngx_addrinfo_t))];
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	680 #endif
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	681
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	682 ngx_memzero(&msg, sizeof(struct msghdr));
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	683
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	684 iov.iov_len = len;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	685 iov.iov_base = buf;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	686
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	687 msg.msg_iov = &iov;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	688 msg.msg_iovlen = 1;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	689
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	690 msg.msg_name = sockaddr;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	691 msg.msg_namelen = socklen;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	692
8976 4646a981111f QUIC: fixed macro style. Vladimir Homutov <vl@nginx.com> parents: 8973 diff changeset	693 #if (NGX_HAVE_ADDRINFO_CMSG)
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	694 if (c->listening && c->listening->wildcard && c->local_sockaddr) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	695
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	696 msg.msg_control = msg_control;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	697 msg.msg_controllen = sizeof(msg_control);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	698 ngx_memzero(msg_control, sizeof(msg_control));
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	699
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	700 cmsg = CMSG_FIRSTHDR(&msg);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	701
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	702 msg.msg_controllen = ngx_set_srcaddr_cmsg(cmsg, c->local_sockaddr);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	703 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	704 #endif
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	705
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	706 n = ngx_sendmsg(c, &msg, 0);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	707 if (n < 0) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	708 return n;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	709 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	710
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	711 c->sent += n;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	712
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	713 return n;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	714 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	715
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	716
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	717 static void
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	718 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	719 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	720 uint64_t delta;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	721
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	722 delta = ctx->pnum - ctx->largest_ack;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	723 pkt->number = ctx->pnum;
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 if (delta <= 0x7F) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	726 pkt->num_len = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	727 pkt->trunc = ctx->pnum & 0xff;
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 } else if (delta <= 0x7FFF) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	730 pkt->num_len = 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	731 pkt->flags \|= 0x1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	732 pkt->trunc = ctx->pnum & 0xffff;
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 } else if (delta <= 0x7FFFFF) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	735 pkt->num_len = 3;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	736 pkt->flags \|= 0x2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	737 pkt->trunc = ctx->pnum & 0xffffff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	738
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	739 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	740 pkt->num_len = 4;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	741 pkt->flags \|= 0x3;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	742 pkt->trunc = ctx->pnum & 0xffffffff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	743 }
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	747 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	748 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	749 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	750 size_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	751 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	752 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	753
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	754 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	755 "sending version negotiation packet");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	756
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	757 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	758 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	759 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	760 pkt.scid = inpkt->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 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	763
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	764 #ifdef NGX_QUIC_DEBUG_PACKETS
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	765 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	766 "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	767 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	768
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	769 (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	770
8973 e5509ff0dfd2 QUIC: avoid logging error in case of version negotiation. Vladimir Homutov <vl@nginx.com> parents: 8971 diff changeset	771 return NGX_DONE;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	772 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	773
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	774
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	775 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	776 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	777 ngx_quic_header_t *pkt)
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 u_char *token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	780 size_t len, max;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	781 uint16_t rndbytes;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	782 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	783
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	784 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	785 "quic handle stateless reset output");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	786
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	787 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	788 return NGX_DECLINED;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	791 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	792 len = pkt->len - 1;
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 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	795 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	796
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	797 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	798 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	799 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	800
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	801 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	802 + NGX_QUIC_MIN_SR_PACKET;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	805 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	806 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	807 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	808
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	809 buf[0] &= ~NGX_QUIC_PKT_LONG;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	810 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	811
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	812 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	813
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	814 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	815 != NGX_OK)
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 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	818 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	819
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	820 (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	821
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	822 return NGX_DECLINED;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	823 }
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	826 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	827 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	828 {
9092 9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	829 ngx_quic_frame_t frame;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	830 ngx_quic_connection_t *qc;
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 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	833
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	834 if (qc->draining) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	835 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	836 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	837
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	838 if (qc->closing
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	839 && 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	840 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	841 /* dot not send CC too often */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	842 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	843 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	844
9092 9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	845 ngx_memzero(&frame, sizeof(ngx_quic_frame_t));
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	846
9092 9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	847 frame.level = qc->error_level;
9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	848 frame.type = qc->error_app ? NGX_QUIC_FT_CONNECTION_CLOSE_APP
9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	849 : NGX_QUIC_FT_CONNECTION_CLOSE;
9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	850 frame.u.close.error_code = qc->error;
9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	851 frame.u.close.frame_type = qc->error_ftype;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	852
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	853 if (qc->error_reason) {
9092 9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	854 frame.u.close.reason.len = ngx_strlen(qc->error_reason);
9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	855 frame.u.close.reason.data = (u_char *) qc->error_reason;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	856 }
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 qc->last_cc = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	859
9092 9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	860 return ngx_quic_frame_sendto(c, &frame, 0, qc->path);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	861 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	862
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	863
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	864 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	865 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	866 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	867 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	868 ssize_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	869 ngx_str_t res;
9025 e50f77a2d0b0 QUIC: removed ngx_quic_keys_new(). Vladimir Homutov <vl@nginx.com> parents: 9024 diff changeset	870 ngx_quic_keys_t keys;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	871 ngx_quic_frame_t frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	872 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	873
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	874 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	875 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	876
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	877 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	878 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	879
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	880 frame.level = inpkt->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	881 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	882 frame.u.close.error_code = err;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	883
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	884 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	885 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	886
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	887 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	888 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	889 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	890 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	891
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	892 ngx_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	893
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	894 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	895 if (len == -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	896 return NGX_ERROR;
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
9025 e50f77a2d0b0 QUIC: removed ngx_quic_keys_new(). Vladimir Homutov <vl@nginx.com> parents: 9024 diff changeset	899 ngx_memzero(&keys, sizeof(ngx_quic_keys_t));
e50f77a2d0b0 QUIC: removed ngx_quic_keys_new(). Vladimir Homutov <vl@nginx.com> parents: 9024 diff changeset	900
e50f77a2d0b0 QUIC: removed ngx_quic_keys_new(). Vladimir Homutov <vl@nginx.com> parents: 9024 diff changeset	901 pkt.keys = &keys;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	902
9024 f2925c80401c QUIC: avoided pool usage in ngx_quic_protection.c. Vladimir Homutov <vl@nginx.com> parents: 9009 diff changeset	903 if (ngx_quic_keys_set_initial_secret(pkt.keys, &inpkt->dcid, c->log)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	904 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	905 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	906 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	907 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	908
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	909 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	910 \| NGX_QUIC_PKT_INITIAL;
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 pkt.num_len = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	913 /*
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	914 * pkt.num = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	915 * pkt.trunc = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	916 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	917
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	918 pkt.version = inpkt->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	919 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	920 pkt.level = inpkt->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	921 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	922 pkt.scid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	923 pkt.payload.data = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	924 pkt.payload.len = len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	925
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	926 res.data = dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	927
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	928 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	929 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	930 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	931
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	932 if (ngx_quic_send(c, res.data, res.len, c->sockaddr, c->socklen) < 0) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	933 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	934 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	935
8994 e00295b76395 QUIC: revised ngx_quic_handle_datagram() error codes. Vladimir Homutov <vl@nginx.com> parents: 8985 diff changeset	936 return NGX_DONE;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	937 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	938
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	939
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	940 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	941 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	942 ngx_quic_header_t *inpkt)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	943 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	944 time_t expires;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	945 ssize_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	946 ngx_str_t res, token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	947 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	948
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	949 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	950 u_char dcid[NGX_QUIC_SERVER_CID_LEN];
9026 3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	951 u_char tbuf[NGX_QUIC_TOKEN_BUF_SIZE];
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	952
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	953 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	954
9026 3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	955 token.data = tbuf;
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	956 token.len = NGX_QUIC_TOKEN_BUF_SIZE;
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	957
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	958 if (ngx_quic_new_token(c->log, c->sockaddr, c->socklen, conf->av_token_key,
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	959 &token, &inpkt->dcid, expires, 1)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	960 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	961 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	962 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	963 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	964
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	965 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	966 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	967 pkt.version = inpkt->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	968 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	969
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	970 pkt.odcid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	971 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	972
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	973 /* TODO: generate routable dcid */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	974 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	975 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	976 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	977
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	978 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	979 pkt.scid.data = dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	980
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	981 pkt.token = token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	982
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	983 res.data = buf;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	984
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	985 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	986 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	987 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	988
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	989 #ifdef NGX_QUIC_DEBUG_PACKETS
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	990 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	991 "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	992 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	993
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	994 len = ngx_quic_send(c, res.data, res.len, c->sockaddr, c->socklen);
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	995 if (len < 0) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	996 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	997 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	998
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	999 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	1000 "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	1001
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1002 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	1003 * RFC 9000, 17.2.5.1. Sending a Retry Packet
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	1004 *
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	1005 * 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	1006 * 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	1007 * 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	1008 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1009 return NGX_DONE;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1010 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1011
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1012
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1013 ngx_int_t
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1014 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	1015 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1016 time_t expires;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1017 ngx_str_t token;
9072 def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1018 ngx_chain_t *out;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1019 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1020 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1021
9026 3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1022 u_char tbuf[NGX_QUIC_TOKEN_BUF_SIZE];
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1023
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1024 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1025
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1026 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	1027
9026 3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1028 token.data = tbuf;
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1029 token.len = NGX_QUIC_TOKEN_BUF_SIZE;
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1030
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1031 if (ngx_quic_new_token(c->log, path->sockaddr, path->socklen,
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1032 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	1033 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1034 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1035 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1036 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1037
9072 def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1038 out = ngx_quic_copy_buffer(c, token.data, token.len);
def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1039 if (out == NGX_CHAIN_ERROR) {
def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1040 return NGX_ERROR;
def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1041 }
def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1042
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1043 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1044 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1045 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1046 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1047
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1048 frame->level = ssl_encryption_application;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1049 frame->type = NGX_QUIC_FT_NEW_TOKEN;
9072 def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1050 frame->data = out;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1051 frame->u.token.length = token.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1052
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1053 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1054
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1055 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1056 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1057
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1058
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1059 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1060 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	1061 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1062 size_t len, left;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1063 uint64_t ack_delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1064 ngx_buf_t *b;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1065 ngx_uint_t i;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1066 ngx_chain_t cl, *ll;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1067 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1068 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1069
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1070 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1071
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1072 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	1073 ack_delay *= 1000;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1074 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	1075
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1076 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1077 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1078 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1079 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1080
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1081 ll = &frame->data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1082 b = NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1083
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1084 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	1085 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	1086 ctx->ranges[i].range);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1087
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1088 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	1089
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1090 if (left < len) {
8948 19e063e955bf QUIC: renamed buffer-related functions. Roman Arutyunyan <arut@nginx.com> parents: 8945 diff changeset	1091 cl = ngx_quic_alloc_chain(c);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1092 if (cl == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1093 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1094 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1095
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1096 *ll = cl;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1097 ll = &cl->next;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1098
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1099 b = cl->buf;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1100 left = b->end - b->last;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1101
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1102 if (left < len) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1103 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1104 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1105 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1106
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1107 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	1108 ctx->ranges[i].range);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1109
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1110 frame->u.ack.ranges_length += len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1111 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1112
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1113 *ll = NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1114
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1115 frame->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1116 frame->type = NGX_QUIC_FT_ACK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1117 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	1118 frame->u.ack.delay = ack_delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1119 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	1120 frame->u.ack.first_range = ctx->first_range;
9139 d7dec2970161 QUIC: always add ACK frame to the queue head. Roman Arutyunyan <arut@nginx.com> parents: 9093 diff changeset	1121 frame->len = ngx_quic_create_frame(NULL, frame);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1122
9139 d7dec2970161 QUIC: always add ACK frame to the queue head. Roman Arutyunyan <arut@nginx.com> parents: 9093 diff changeset	1123 ngx_queue_insert_head(&ctx->frames, &frame->queue);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1124
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1125 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1126 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1127
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1128
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1129 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1130 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	1131 uint64_t smallest, uint64_t largest)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1132 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1133 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1134 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1135
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1136 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1137
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1138 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1139 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1140 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1141 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1142
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1143 frame->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1144 frame->type = NGX_QUIC_FT_ACK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1145 frame->u.ack.largest = largest;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1146 frame->u.ack.delay = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1147 frame->u.ack.range_count = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1148 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	1149
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1150 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1151
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1152 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1153 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1154
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1155
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1156 ngx_int_t
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1157 ngx_quic_frame_sendto(ngx_connection_t c, ngx_quic_frame_t frame,
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1158 size_t min, ngx_quic_path_t *path)
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1159 {
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1160 size_t min_payload, pad;
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1161 ssize_t len, sent;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1162 ngx_str_t res;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1163 ngx_quic_header_t pkt;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1164 ngx_quic_send_ctx_t *ctx;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1165 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1166
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1167 static u_char src[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1168 static u_char dst[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1169
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1170 qc = ngx_quic_get_connection(c);
9093 9ae24a9ba763 QUIC: fixed encryption level in ngx_quic_frame_sendto(). Roman Arutyunyan <arut@nginx.com> parents: 9092 diff changeset	1171 ctx = ngx_quic_get_send_ctx(qc, frame->level);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1172
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	1173 ngx_quic_init_packet(c, ctx, &pkt, path);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1174
8941 0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1175 min = ngx_quic_path_limit(c, path, min);
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1176
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1177 min_payload = min ? ngx_quic_payload_size(&pkt, min) : 0;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1178
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1179 pad = 4 - pkt.num_len;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1180 min_payload = ngx_max(min_payload, pad);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1181
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1182 len = ngx_quic_create_frame(NULL, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1183 if (len > NGX_QUIC_MAX_UDP_PAYLOAD_SIZE) {
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1184 return NGX_ERROR;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1185 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1186
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1187 ngx_quic_log_frame(c->log, frame, 1);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1188
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1189 len = ngx_quic_create_frame(src, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1190 if (len == -1) {
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1191 return NGX_ERROR;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1192 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1193
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1194 if (len < (ssize_t) min_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1195 ngx_memset(src + len, NGX_QUIC_FT_PADDING, min_payload - len);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1196 len = min_payload;
9075 12b756caaf16 QUIC: fixed indentation. Sergey Kandaurov <pluknet@nginx.com> parents: 9072 diff changeset	1197 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1198
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1199 pkt.payload.data = src;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1200 pkt.payload.len = len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1201
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1202 res.data = dst;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1203
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1204 if (ngx_quic_encrypt(&pkt, &res) != NGX_OK) {
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1205 return NGX_ERROR;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1206 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1207
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1208 ctx->pnum++;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1209
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1210 sent = ngx_quic_send(c, res.data, res.len, path->sockaddr, path->socklen);
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1211 if (sent < 0) {
9146 f3412ec3b6d1 QUIC: allowed ngx_quic_frame_sendto() to return NGX_AGAIN. Roman Arutyunyan <arut@nginx.com> parents: 9145 diff changeset	1212 return sent;
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1213 }
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1214
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1215 path->sent += sent;
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1216
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1217 return NGX_OK;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1218 }
8941 0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1219
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1220
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1221 static size_t
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1222 ngx_quic_path_limit(ngx_connection_t c, ngx_quic_path_t path, size_t size)
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1223 {
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1224 off_t max;
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1225
9144 bba136612fe4 QUIC: removed path->limited flag. Roman Arutyunyan <arut@nginx.com> parents: 9143 diff changeset	1226 if (!path->validated) {
8941 0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1227 max = path->received * 3;
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1228 max = (path->sent >= max) ? 0 : max - path->sent;
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1229
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1230 if ((off_t) size > max) {
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1231 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1232 "quic path limit %uz - %O", size, max);
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1233 return max;
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1234 }
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1235 }
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1236
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1237 return size;
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1238 }

Mercurial > hg > nginx

annotate src/event/quic/ngx_event_quic_output.c @ 9147:58afcd72446f