nginx: src/event/quic/ngx_event_quic

annotate src/event/quic/ngx_event_quic_output.c @ 9005:e56a05d6dbd1 quic

QUIC: fixed resetting stream wev->ready flag. Previously, the flag could be reset after send_chain() with a limit, even though there was room for more data. The application then started waiting for a write event notification, which never happened. Now the wev->ready flag is only reset when flow control is exhausted.

author	Roman Arutyunyan <arut@nginx.com>
date	Wed, 09 Feb 2022 14:49:05 +0300
parents	868e1b76c956
children	5f78174d1ac1

rev	line source
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	2 /*
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	3 * Copyright (C) Nginx, Inc.
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	4 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	5
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	6
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	7 #include <ngx_config.h>
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	8 #include <ngx_core.h>
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	9 #include <ngx_event.h>
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	10 #include <ngx_event_quic_connection.h>
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	11
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	12
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	13 #define NGX_QUIC_MAX_UDP_PAYLOAD_OUT 1252
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	14 #define NGX_QUIC_MAX_UDP_PAYLOAD_OUT6 1232
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	15
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	16 #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	17 #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	18
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	19 #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	20 #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	21 #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	22 /* 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	23
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	24 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	25 * RFC 9000, 10.3. Stateless Reset
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	26 *
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	27 * 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	28 * 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	29 * 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	30 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	31 #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	32
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	33 #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	34 #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	35
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	36 #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	37
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	38 #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	39
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	40
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	41 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	42 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	43 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	44 uint64_t pnum);
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	45 #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	46 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	47 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	48 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	49 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	50 #endif
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	51 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	52 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	53 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	54 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	55 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	56 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	57 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	58 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	59 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	60 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	61 size_t size);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	62
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	63
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	64 size_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	65 ngx_quic_max_udp_payload(ngx_connection_t *c)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	66 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	67 /* TODO: path MTU discovery */
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 #if (NGX_HAVE_INET6)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	70 if (c->sockaddr->sa_family == AF_INET6) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	71 return NGX_QUIC_MAX_UDP_PAYLOAD_OUT6;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	72 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	73 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	74
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	75 return NGX_QUIC_MAX_UDP_PAYLOAD_OUT;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	76 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	77
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	78
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	79 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	80 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	81 {
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	82 size_t in_flight;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	83 ngx_int_t rc;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	84 ngx_quic_congestion_t *cg;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	85 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	86
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	87 c->log->action = "sending frames";
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	88
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	89 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	90 cg = &qc->congestion;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	91
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	92 in_flight = cg->in_flight;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	93
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	94 #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	95 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	96 rc = ngx_quic_create_segments(c);
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	97 } else
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	98 #endif
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	99 {
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	100 rc = ngx_quic_create_datagrams(c);
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	101 }
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 if (rc != NGX_OK) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	104 return NGX_ERROR;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	105 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	106
9001 868e1b76c956 QUIC: do not arm loss detection timer if nothing was sent. Sergey Kandaurov <pluknet@nginx.com> parents: 9000 diff changeset	107 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	108 /* 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	109 return NGX_OK;
868e1b76c956 QUIC: do not arm loss detection timer if nothing was sent. Sergey Kandaurov <pluknet@nginx.com> parents: 9000 diff changeset	110 }
868e1b76c956 QUIC: do not arm loss detection timer if nothing was sent. Sergey Kandaurov <pluknet@nginx.com> parents: 9000 diff changeset	111
868e1b76c956 QUIC: do not arm loss detection timer if nothing was sent. Sergey Kandaurov <pluknet@nginx.com> parents: 9000 diff changeset	112 if (!qc->send_timer_set) {
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	113 qc->send_timer_set = 1;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	114 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	115 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	116
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	117 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	118
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	119 return NGX_OK;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	120 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	121
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	122
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	123 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	124 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	125 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	126 size_t len, min;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	127 ssize_t n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	128 u_char *p;
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	129 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	130 ngx_uint_t i, pad;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	131 ngx_quic_path_t *path;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	132 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	133 ngx_quic_congestion_t *cg;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	134 ngx_quic_connection_t *qc;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	135 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	136
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	137 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	138 cg = &qc->congestion;
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	139 path = qc->path;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	140
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8822 diff changeset	141 while (cg->in_flight < cg->window) {
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8822 diff changeset	142
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	143 p = dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	144
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	145 len = ngx_min(qc->ctp.max_udp_payload_size,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	146 NGX_QUIC_MAX_UDP_PAYLOAD_SIZE);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	147
8941 0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	148 len = ngx_quic_path_limit(c, path, len);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	149
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	150 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	151
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	152 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	153
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	154 ctx = &qc->send_ctx[i];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	155
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	156 preserved_pnum[i] = ctx->pnum;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	157
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	158 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	159 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	160 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	161
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	162 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	163 ? 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	164
8891 c5155a0cb12f QUIC: fixed processing of minimum packet size. Vladimir Homutov <vl@nginx.com> parents: 8823 diff changeset	165 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	166 /* 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	167
cd8018bc81a5 QUIC: fixed padding of initial packets in case of limited path. Vladimir Homutov <vl@nginx.com> parents: 8994 diff changeset	168 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) {
cd8018bc81a5 QUIC: fixed padding of initial packets in case of limited path. Vladimir Homutov <vl@nginx.com> parents: 8994 diff changeset	169 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	170 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	171 }
cd8018bc81a5 QUIC: fixed padding of initial packets in case of limited path. Vladimir Homutov <vl@nginx.com> parents: 8994 diff changeset	172
cd8018bc81a5 QUIC: fixed padding of initial packets in case of limited path. Vladimir Homutov <vl@nginx.com> parents: 8994 diff changeset	173 return NGX_OK;
8891 c5155a0cb12f QUIC: fixed processing of minimum packet size. Vladimir Homutov <vl@nginx.com> parents: 8823 diff changeset	174 }
c5155a0cb12f QUIC: fixed processing of minimum packet size. Vladimir Homutov <vl@nginx.com> parents: 8823 diff changeset	175
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	176 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	177 if (n == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	178 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	179 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	180
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	181 p += n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	182 len -= n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	183 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	184
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	185 len = p - dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	186 if (len == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	187 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	188 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	189
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	190 n = ngx_quic_send(c, dst, len, path->sockaddr, path->socklen);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	191
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	192 if (n == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	193 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	194 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	195
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	196 if (n == NGX_AGAIN) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	197 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	198 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	199 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	200
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	201 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	202 break;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	203 }
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 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	206 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	207 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	208
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	209 path->sent += len;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	210 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	211
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	212 return NGX_OK;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	213 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	214
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	215
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	216 static void
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	217 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	218 {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	219 ngx_queue_t *q;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	220 ngx_quic_frame_t *f;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	221 ngx_quic_congestion_t *cg;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	222 ngx_quic_connection_t *qc;
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 qc = ngx_quic_get_connection(c);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	225
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	226 cg = &qc->congestion;
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 while (!ngx_queue_empty(&ctx->sending)) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	229
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	230 q = ngx_queue_head(&ctx->sending);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	231 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	232
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	233 ngx_queue_remove(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 if (f->pkt_need_ack && !qc->closing) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	236 ngx_queue_insert_tail(&ctx->sent, q);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	237
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	238 cg->in_flight += f->plen;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	239
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	240 } else {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	241 ngx_quic_free_frame(c, f);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	242 }
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 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	246 "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	247 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	248
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	249
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	250 static void
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	251 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	252 uint64_t pnum)
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	253 {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	254 ngx_queue_t *q;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	255
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	256 while (!ngx_queue_empty(&ctx->sending)) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	257
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	258 q = ngx_queue_last(&ctx->sending);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	259 ngx_queue_remove(q);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	260 ngx_queue_insert_head(&ctx->frames, q);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	261 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	262
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	263 ctx->pnum = pnum;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	264 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	265
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	266
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	267 #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	268
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	269 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	270 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	271 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	272 size_t bytes, len;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	273 ngx_queue_t *q;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	274 ngx_quic_frame_t *f;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	275 ngx_quic_send_ctx_t *ctx;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	276 ngx_quic_connection_t *qc;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	277
8815 8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	278 qc = ngx_quic_get_connection(c);
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	279
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	280 if (!qc->conf->gso_enabled) {
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	281 return 0;
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	282 }
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	283
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	284 if (qc->path->limited) {
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	285 /* 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	286 return 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	287 }
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 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	290 if (!ngx_queue_empty(&ctx->frames)) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	291 return 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	292 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	293
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	294 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	295 if (!ngx_queue_empty(&ctx->frames)) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	296 return 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	297 }
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 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	300
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	301 bytes = 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	302
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	303 len = ngx_min(qc->ctp.max_udp_payload_size,
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	304 NGX_QUIC_MAX_UDP_SEGMENT_BUF);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	305
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	306 for (q = ngx_queue_head(&ctx->frames);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	307 q != ngx_queue_sentinel(&ctx->frames);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	308 q = ngx_queue_next(q))
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	309 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	310 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	311
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	312 bytes += f->len;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	313
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	314 if (bytes > len * 3) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	315 /* require at least ~3 full packets to batch */
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	316 return 1;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	317 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	318 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	319
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	320 return 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	321 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	322
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 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	325 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	326 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	327 size_t len, segsize;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	328 ssize_t n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	329 u_char p, end;
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	330 uint64_t preserved_pnum;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	331 ngx_uint_t nseg;
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	332 ngx_quic_path_t *path;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	333 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	334 ngx_quic_congestion_t *cg;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	335 ngx_quic_connection_t *qc;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	336 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	337
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	338 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	339 cg = &qc->congestion;
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	340 path = qc->path;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	341
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	342 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	343
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	344 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	345 return NGX_ERROR;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	346 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	347
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	348 segsize = ngx_min(qc->ctp.max_udp_payload_size,
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	349 NGX_QUIC_MAX_UDP_SEGMENT_BUF);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	350 p = dst;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	351 end = dst + sizeof(dst);
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 nseg = 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	354
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	355 preserved_pnum = ctx->pnum;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	356
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	357 for ( ;; ) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	358
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	359 len = ngx_min(segsize, (size_t) (end - p));
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	360
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8822 diff changeset	361 if (len && cg->in_flight < cg->window) {
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	362
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	363 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	364 if (n == NGX_ERROR) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	365 return NGX_ERROR;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	366 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	367
8899 25b87b392ce0 QUIC: fixed GSO packets count. Vladimir Homutov <vl@nginx.com> parents: 8894 diff changeset	368 if (n) {
25b87b392ce0 QUIC: fixed GSO packets count. Vladimir Homutov <vl@nginx.com> parents: 8894 diff changeset	369 p += n;
25b87b392ce0 QUIC: fixed GSO packets count. Vladimir Homutov <vl@nginx.com> parents: 8894 diff changeset	370 nseg++;
25b87b392ce0 QUIC: fixed GSO packets count. Vladimir Homutov <vl@nginx.com> parents: 8894 diff changeset	371 }
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	372
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	373 } else {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	374 n = 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	375 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	376
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	377 if (p == dst) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	378 break;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	379 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	380
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	381 if (n == 0 \|\| nseg == NGX_QUIC_MAX_SEGMENTS) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	382 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	383 path->socklen, segsize);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	384 if (n == NGX_ERROR) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	385 return NGX_ERROR;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	386 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	387
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	388 if (n == NGX_AGAIN) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	389 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	390
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	391 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	392 break;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	393 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	394
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	395 ngx_quic_commit_send(c, ctx);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	396
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	397 path->sent += n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	398
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	399 p = dst;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	400 nseg = 0;
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	401 preserved_pnum = ctx->pnum;
8811 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 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	404
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	405 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	406 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	407
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	408
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	409 static ssize_t
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	410 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	411 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	412 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	413 size_t clen;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	414 ssize_t n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	415 uint16_t *valp;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	416 struct iovec iov;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	417 struct msghdr msg;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	418 struct cmsghdr *cmsg;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	419
8976 4646a981111f QUIC: fixed macro style. Vladimir Homutov <vl@nginx.com> parents: 8973 diff changeset	420 #if (NGX_HAVE_ADDRINFO_CMSG)
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	421 char msg_control[CMSG_SPACE(sizeof(uint16_t))
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	422 + CMSG_SPACE(sizeof(ngx_addrinfo_t))];
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	423 #else
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	424 char msg_control[CMSG_SPACE(sizeof(uint16_t))];
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	425 #endif
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	426
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	427 ngx_memzero(&msg, sizeof(struct msghdr));
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	428 ngx_memzero(msg_control, sizeof(msg_control));
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	429
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	430 iov.iov_len = len;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	431 iov.iov_base = buf;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	432
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	433 msg.msg_iov = &iov;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	434 msg.msg_iovlen = 1;
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_name = sockaddr;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	437 msg.msg_namelen = socklen;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	438
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	439 msg.msg_control = msg_control;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	440 msg.msg_controllen = sizeof(msg_control);
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 cmsg = CMSG_FIRSTHDR(&msg);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	443
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	444 cmsg->cmsg_level = SOL_UDP;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	445 cmsg->cmsg_type = UDP_SEGMENT;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	446 cmsg->cmsg_len = CMSG_LEN(sizeof(uint16_t));
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 clen = CMSG_SPACE(sizeof(uint16_t));
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 valp = (void *) CMSG_DATA(cmsg);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	451 *valp = segment;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	452
8976 4646a981111f QUIC: fixed macro style. Vladimir Homutov <vl@nginx.com> parents: 8973 diff changeset	453 #if (NGX_HAVE_ADDRINFO_CMSG)
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	454 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	455 cmsg = CMSG_NXTHDR(&msg, cmsg);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	456 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	457 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	458 #endif
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	459
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	460 msg.msg_controllen = clen;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	461
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	462 n = ngx_sendmsg(c, &msg, 0);
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	463 if (n < 0) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	464 return n;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	465 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	466
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	467 c->sent += n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	468
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	469 return n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	470 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	471
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	472 #endif
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	473
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	474
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	475
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	476 static ngx_uint_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	477 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	478 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	479 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	480 ngx_quic_frame_t *f;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	481 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	482 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	483
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	484 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	485 * 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	486 *
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	487 * 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	488 * 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	489 * 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	490 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	491
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	492 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	493 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	494
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	495 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	496 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	497 q = ngx_queue_next(q))
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	498 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	499 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	500
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	501 if (f->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	502 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_handshake);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	503
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	504 if (ngx_queue_empty(&ctx->frames)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	505 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	506 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	507
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	508 return 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	509 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	510 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	511
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	512 return NGX_QUIC_SEND_CTX_LAST;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	513 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	514
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	515
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	516 static ssize_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	517 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	518 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	519 {
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	520 size_t len, pad, min_payload, max_payload;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	521 u_char *p;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	522 ssize_t flen;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	523 ngx_str_t res;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	524 ngx_int_t rc;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	525 ngx_uint_t nframes, expand;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	526 ngx_msec_t now;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	527 ngx_queue_t *q;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	528 ngx_quic_frame_t *f;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	529 ngx_quic_header_t pkt;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	530 ngx_quic_connection_t *qc;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	531 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	532
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	533 if (ngx_queue_empty(&ctx->frames)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	534 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	535 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	536
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	537 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	538 "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	539 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	540
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	541 qc = ngx_quic_get_connection(c);
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	542
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	543 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	544
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	545 min_payload = ngx_quic_payload_size(&pkt, min);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	546 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	547
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	548 /* RFC 9001, 5.4.2. Header Protection Sample */
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	549 pad = 4 - pkt.num_len;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	550 min_payload = ngx_max(min_payload, pad);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	551
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	552 if (min_payload > max_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	553 return 0;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	554 }
8751 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 now = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	557 nframes = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	558 p = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	559 len = 0;
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	560 expand = 0;
8751 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 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	563 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	564 q = ngx_queue_next(q))
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 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	567
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	568 if (!expand && (f->type == NGX_QUIC_FT_PATH_RESPONSE
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	569 \|\| f->type == NGX_QUIC_FT_PATH_CHALLENGE))
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	570 {
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	571 /*
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	572 * RFC 9000, 8.2.1. Initiating Path Validation
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	573 *
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	574 * An endpoint MUST expand datagrams that contain a
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	575 * PATH_CHALLENGE frame to at least the smallest allowed
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	576 * maximum datagram size of 1200 bytes...
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	577 *
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	578 * (same applies to PATH_RESPONSE frames)
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	579 */
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	580
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	581 if (max < 1200) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	582 /* expanded packet will not fit */
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	583 break;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	584 }
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	585
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	586 if (min < 1200) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	587 min = 1200;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	588
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	589 min_payload = ngx_quic_payload_size(&pkt, min);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	590 }
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	591
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	592 expand = 1;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	593 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	594
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	595 if (len >= max_payload) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	596 break;
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
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	599 if (len + f->len > max_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	600 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	601
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	602 if (rc == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	603 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	604 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	605
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	606 if (rc == NGX_DECLINED) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	607 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	608 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	609 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	610
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	611 if (f->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	612 pkt.need_ack = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	613 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	614
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	615 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	616
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	617 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	618 if (flen == -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	619 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	620 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	621
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	622 len += flen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	623 p += flen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	624
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	625 f->pnum = ctx->pnum;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	626 f->first = now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	627 f->last = now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	628 f->plen = 0;
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 nframes++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	631
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	632 if (f->flush) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	633 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	634 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	635 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	636
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	637 if (nframes == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	638 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	639 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	640
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	641 if (len < min_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	642 ngx_memset(p, NGX_QUIC_FT_PADDING, min_payload - len);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	643 len = min_payload;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	644 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	645
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	646 pkt.payload.data = src;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	647 pkt.payload.len = len;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	648
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	649 res.data = data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	650
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	651 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	652 "quic packet tx %s bytes:%ui"
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	653 " 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	654 ngx_quic_level_name(ctx->level), pkt.payload.len,
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	655 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	656
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	657 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	658 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	659 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	660
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	661 ctx->pnum++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	662
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	663 if (pkt.need_ack) {
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	664 q = ngx_queue_head(&ctx->frames);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	665 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	666
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	667 f->plen = res.len;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	668 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	669
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	670 while (nframes--) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	671 q = ngx_queue_head(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	672 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	673
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	674 f->pkt_need_ack = pkt.need_ack;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	675
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	676 ngx_queue_remove(q);
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	677 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	678 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	679
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	680 return res.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	681 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	682
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	683
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	684 static void
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	685 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	686 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	687 {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	688 ngx_quic_connection_t *qc;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	689
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	690 qc = ngx_quic_get_connection(c);
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	691
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	692 ngx_memzero(pkt, sizeof(ngx_quic_header_t));
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	693
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	694 pkt->flags = NGX_QUIC_PKT_FIXED_BIT;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	695
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	696 if (ctx->level == ssl_encryption_initial) {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	697 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	698
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	699 } else if (ctx->level == ssl_encryption_handshake) {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	700 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	701
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	702 } else {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	703 if (qc->key_phase) {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	704 pkt->flags \|= NGX_QUIC_PKT_KPHASE;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	705 }
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	706 }
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	707
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	708 pkt->dcid.data = path->cid->id;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	709 pkt->dcid.len = path->cid->len;
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	710
8985 da24a78720eb QUIC: fixed handling of initial source connection id. Vladimir Homutov <vl@nginx.com> parents: 8980 diff changeset	711 pkt->scid = qc->tp.initial_scid;
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	712
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	713 pkt->version = qc->version;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	714 pkt->log = c->log;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	715 pkt->level = ctx->level;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	716
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	717 pkt->keys = qc->keys;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	718
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	719 ngx_quic_set_packet_number(pkt, ctx);
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	720 }
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	721
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	722
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	723 static ssize_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	724 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	725 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	726 {
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	727 ssize_t n;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	728 struct iovec iov;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	729 struct msghdr msg;
8976 4646a981111f QUIC: fixed macro style. Vladimir Homutov <vl@nginx.com> parents: 8973 diff changeset	730 #if (NGX_HAVE_ADDRINFO_CMSG)
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	731 struct cmsghdr *cmsg;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	732 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	733 #endif
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	734
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	735 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	736
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	737 iov.iov_len = len;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	738 iov.iov_base = buf;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	739
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	740 msg.msg_iov = &iov;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	741 msg.msg_iovlen = 1;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	742
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	743 msg.msg_name = sockaddr;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	744 msg.msg_namelen = socklen;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	745
8976 4646a981111f QUIC: fixed macro style. Vladimir Homutov <vl@nginx.com> parents: 8973 diff changeset	746 #if (NGX_HAVE_ADDRINFO_CMSG)
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	747 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	748
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	749 msg.msg_control = msg_control;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	750 msg.msg_controllen = sizeof(msg_control);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	751 ngx_memzero(msg_control, sizeof(msg_control));
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	752
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	753 cmsg = CMSG_FIRSTHDR(&msg);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	754
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	755 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	756 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	757 #endif
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	758
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	759 n = ngx_sendmsg(c, &msg, 0);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	760 if (n < 0) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	761 return n;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	762 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	763
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	764 c->sent += n;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	765
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	766 return n;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	767 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	768
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	769
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	770 static void
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	771 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	772 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	773 uint64_t delta;
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 delta = ctx->pnum - ctx->largest_ack;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	776 pkt->number = ctx->pnum;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	777
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	778 if (delta <= 0x7F) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	779 pkt->num_len = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	780 pkt->trunc = ctx->pnum & 0xff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	781
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	782 } else if (delta <= 0x7FFF) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	783 pkt->num_len = 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	784 pkt->flags \|= 0x1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	785 pkt->trunc = ctx->pnum & 0xffff;
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 } else if (delta <= 0x7FFFFF) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	788 pkt->num_len = 3;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	789 pkt->flags \|= 0x2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	790 pkt->trunc = ctx->pnum & 0xffffff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	791
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	792 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	793 pkt->num_len = 4;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	794 pkt->flags \|= 0x3;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	795 pkt->trunc = ctx->pnum & 0xffffffff;
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 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	798
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 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	801 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	802 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	803 size_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	804 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	805 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	806
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	807 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	808 "sending version negotiation packet");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	809
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	810 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	811 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	812 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	813 pkt.scid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	814
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	815 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	816
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	817 #ifdef NGX_QUIC_DEBUG_PACKETS
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	818 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	819 "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	820 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	821
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	822 (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	823
8973 e5509ff0dfd2 QUIC: avoid logging error in case of version negotiation. Vladimir Homutov <vl@nginx.com> parents: 8971 diff changeset	824 return NGX_DONE;
8751 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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	827
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	828 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	829 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	830 ngx_quic_header_t *pkt)
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 u_char *token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	833 size_t len, max;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	834 uint16_t rndbytes;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	835 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	836
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	837 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	838 "quic handle stateless reset output");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	839
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	840 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	841 return NGX_DECLINED;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	842 }
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 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	845 len = pkt->len - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	846
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	847 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	848 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	849
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	850 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	851 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	854 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	855 + NGX_QUIC_MIN_SR_PACKET;
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 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	859 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	860 }
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 buf[0] &= ~NGX_QUIC_PKT_LONG;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	863 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	864
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	865 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	866
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	867 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	868 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	869 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	870 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	871 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	872
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	873 (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	874
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	875 return NGX_DECLINED;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	878
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	879 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	880 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	881 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	882 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	883 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	884
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	885 qc = ngx_quic_get_connection(c);
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 if (qc->draining) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	888 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	889 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	890
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	891 if (qc->closing
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	892 && 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	893 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	894 /* dot not send CC too often */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	895 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	896 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	897
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	898 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	899 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	900 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	901 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	902
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	903 frame->level = qc->error_level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	904 frame->type = qc->error_app ? NGX_QUIC_FT_CONNECTION_CLOSE_APP
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	905 : NGX_QUIC_FT_CONNECTION_CLOSE;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	906 frame->u.close.error_code = qc->error;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	907 frame->u.close.frame_type = qc->error_ftype;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	908
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	909 if (qc->error_reason) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	910 frame->u.close.reason.len = ngx_strlen(qc->error_reason);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	911 frame->u.close.reason.data = (u_char *) qc->error_reason;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	912 }
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 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	915
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	916 qc->last_cc = ngx_current_msec;
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 return ngx_quic_output(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	919 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	920
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	921
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	922 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	923 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	924 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	925 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	926 ssize_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	927 ngx_str_t res;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	928 ngx_quic_frame_t frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	929 ngx_quic_header_t pkt;
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 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	932 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	933
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	934 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	935 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	936
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	937 frame.level = inpkt->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	938 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	939 frame.u.close.error_code = err;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	940
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	941 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	942 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	943
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	944 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	945 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	946 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	947 }
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 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	950
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	951 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	952 if (len == -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	953 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	954 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	955
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	956 pkt.keys = ngx_quic_keys_new(c->pool);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	957 if (pkt.keys == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	958 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	959 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	960
8980 d8865baab732 QUIC: removed draft versions support. Sergey Kandaurov <pluknet@nginx.com> parents: 8976 diff changeset	961 if (ngx_quic_keys_set_initial_secret(c->pool, pkt.keys, &inpkt->dcid)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	962 != NGX_OK)
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 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	965 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	966
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	967 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	968 \| NGX_QUIC_PKT_INITIAL;
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.num_len = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	971 /*
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	972 * pkt.num = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	973 * pkt.trunc = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	974 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	975
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	976 pkt.version = inpkt->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	977 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	978 pkt.level = inpkt->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	979 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	980 pkt.scid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	981 pkt.payload.data = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	982 pkt.payload.len = len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	983
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	984 res.data = dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	985
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	986 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	987 return NGX_ERROR;
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
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	990 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	991 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	992 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	993
8994 e00295b76395 QUIC: revised ngx_quic_handle_datagram() error codes. Vladimir Homutov <vl@nginx.com> parents: 8985 diff changeset	994 return NGX_DONE;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	995 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	996
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 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	999 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	1000 ngx_quic_header_t *inpkt)
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 time_t expires;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1003 ssize_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1004 ngx_str_t res, token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1005 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1006
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1007 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	1008 u_char dcid[NGX_QUIC_SERVER_CID_LEN];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1009
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1010 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	1011
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1012 if (ngx_quic_new_token(c, c->sockaddr, c->socklen, conf->av_token_key,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1013 &token, &inpkt->dcid, expires, 1)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1014 != NGX_OK)
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 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1017 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1018
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1019 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	1020 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	1021 pkt.version = inpkt->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1022 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1023
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1024 pkt.odcid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1025 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1026
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1027 /* TODO: generate routable dcid */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1028 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	1029 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1030 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1031
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1032 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	1033 pkt.scid.data = dcid;
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 pkt.token = token;
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 res.data = buf;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1038
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1039 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	1040 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1041 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1042
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1043 #ifdef NGX_QUIC_DEBUG_PACKETS
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1044 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	1045 "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	1046 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1047
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1048 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	1049 if (len < 0) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1050 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1051 }
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_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	1054 "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	1055
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1056 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	1057 * RFC 9000, 17.2.5.1. Sending a Retry Packet
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	1058 *
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	1059 * 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	1060 * 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	1061 * 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	1062 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1063 return NGX_DONE;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1064 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1065
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1066
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1067 ngx_int_t
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1068 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	1069 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1070 time_t expires;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1071 ngx_str_t token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1072 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1073 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1074
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1075 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1076
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1077 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	1078
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1079 if (ngx_quic_new_token(c, path->sockaddr, path->socklen,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1080 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	1081 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1082 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1083 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1084 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1085
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1086 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1087 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1088 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1091 frame->level = ssl_encryption_application;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1092 frame->type = NGX_QUIC_FT_NEW_TOKEN;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1093 frame->u.token.length = token.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1094 frame->u.token.data = token.data;
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 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1097
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1098 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1099 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1100
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 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1103 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	1104 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1105 size_t len, left;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1106 uint64_t ack_delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1107 ngx_buf_t *b;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1108 ngx_uint_t i;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1109 ngx_chain_t cl, *ll;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1110 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1111 ngx_quic_connection_t *qc;
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 qc = ngx_quic_get_connection(c);
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 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	1116 ack_delay *= 1000;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1117 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	1118
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1119 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1120 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1121 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1122 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1123
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1124 ll = &frame->data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1125 b = NULL;
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 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	1128 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	1129 ctx->ranges[i].range);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1130
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1131 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	1132
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1133 if (left < len) {
8948 19e063e955bf QUIC: renamed buffer-related functions. Roman Arutyunyan <arut@nginx.com> parents: 8945 diff changeset	1134 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	1135 if (cl == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1136 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1139 *ll = cl;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1140 ll = &cl->next;
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 b = cl->buf;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1143 left = b->end - b->last;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1144
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1145 if (left < len) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1146 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1147 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1148 }
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 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	1151 ctx->ranges[i].range);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1152
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1153 frame->u.ack.ranges_length += len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1154 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1155
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1156 *ll = NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1157
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1158 frame->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1159 frame->type = NGX_QUIC_FT_ACK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1160 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	1161 frame->u.ack.delay = ack_delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1162 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	1163 frame->u.ack.first_range = ctx->first_range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1164
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1165 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1166
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1167 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1168 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1169
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1170
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1171 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1172 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	1173 uint64_t smallest, uint64_t largest)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1174 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1175 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1176 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1177
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1178 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1179
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1180 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1181 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1182 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1183 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1184
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1185 frame->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1186 frame->type = NGX_QUIC_FT_ACK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1187 frame->u.ack.largest = largest;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1188 frame->u.ack.delay = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1189 frame->u.ack.range_count = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1190 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	1191
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1192 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1193
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1194 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1195 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1196
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1197
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1198 ngx_int_t
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1199 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	1200 size_t min, ngx_quic_path_t *path)
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1201 {
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1202 size_t min_payload, pad;
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1203 ssize_t len, sent;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1204 ngx_str_t res;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1205 ngx_quic_header_t pkt;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1206 ngx_quic_send_ctx_t *ctx;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1207 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1208
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1209 static u_char src[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1210 static u_char dst[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1211
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1212 qc = ngx_quic_get_connection(c);
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	1213 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_application);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1214
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	1215 ngx_quic_init_packet(c, ctx, &pkt, path);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1216
8941 0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1217 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	1218
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1219 min_payload = min ? ngx_quic_payload_size(&pkt, min) : 0;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1220
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1221 pad = 4 - pkt.num_len;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1222 min_payload = ngx_max(min_payload, pad);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1223
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1224 len = ngx_quic_create_frame(NULL, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1225 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	1226 return NGX_ERROR;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1227 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1228
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1229 ngx_quic_log_frame(c->log, frame, 1);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1230
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1231 len = ngx_quic_create_frame(src, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1232 if (len == -1) {
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1233 return NGX_ERROR;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1234 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1235
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1236 if (len < (ssize_t) min_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1237 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	1238 len = min_payload;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1239 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1240
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1241 pkt.payload.data = src;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1242 pkt.payload.len = len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1243
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1244 res.data = dst;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1245
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1246 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	1247 return NGX_ERROR;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1248 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1249
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1250 ctx->pnum++;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1251
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1252 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	1253 if (sent < 0) {
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1254 return NGX_ERROR;
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1255 }
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1256
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1257 path->sent += sent;
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1258
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1259 return NGX_OK;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1260 }
8941 0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1261
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1262
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1263 static size_t
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1264 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	1265 {
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1266 off_t max;
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1267
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1268 if (path->limited) {
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1269 max = path->received * 3;
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1270 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	1271
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1272 if ((off_t) size > max) {
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1273 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	1274 "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	1275 return max;
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1276 }
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1277 }
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1278
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1279 return size;
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1280 }

Mercurial > hg > nginx

annotate src/event/quic/ngx_event_quic_output.c @ 9005:e56a05d6dbd1 quic