nginx: src/event/quic/ngx_event_quic

annotate src/event/quic/ngx_event_quic_output.c @ 9144:bba136612fe4

QUIC: removed path->limited flag. Its value is the opposite of path->validated.

author	Roman Arutyunyan <arut@nginx.com>
date	Thu, 06 Jul 2023 17:49:01 +0400
parents	48691bab4474
children	93aee926d27f

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
9006 5f78174d1ac1 QUIC: fixed output context restoring. Vladimir Homutov <vl@nginx.com> parents: 9001 diff changeset	168 while (i-- > 0) {
9000 cd8018bc81a5 QUIC: fixed padding of initial packets in case of limited path. Vladimir Homutov <vl@nginx.com> parents: 8994 diff changeset	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
9144 bba136612fe4 QUIC: removed path->limited flag. Roman Arutyunyan <arut@nginx.com> parents: 9143 diff changeset	284 if (!qc->path->validated) {
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
9140 e9a003d40485 QUIC: fixed congesion control in GSO mode. Roman Arutyunyan <arut@nginx.com> parents: 9139 diff changeset	361 if (len && cg->in_flight + (p - dst) < cg->window) {
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	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 {
9009 e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	479 ngx_uint_t i;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	480 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	481 ngx_quic_frame_t *f;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	482 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	483 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	484
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	485 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	486 * 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	487 *
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	488 * 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	489 * 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	490 * 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	491 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	492
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	493 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	494 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	495
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	496 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	497 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	498 q = ngx_queue_next(q))
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	499 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	500 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	501
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	502 if (f->need_ack) {
9009 e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	503 for (i = 0; i + 1 < NGX_QUIC_SEND_CTX_LAST; i++) {
e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	504 ctx = &qc->send_ctx[i + 1];
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	505
9009 e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	506 if (ngx_queue_empty(&ctx->frames)) {
e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	507 break;
e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	508 }
8751 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
9009 e5f16d886c97 QUIC: optimized datagram expansion with half-RTT tickets. Sergey Kandaurov <pluknet@nginx.com> parents: 9006 diff changeset	511 return i;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	512 }
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 return NGX_QUIC_SEND_CTX_LAST;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	516 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	517
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	518
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	519 static ssize_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	520 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	521 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	522 {
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	523 size_t len, pad, min_payload, max_payload;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	524 u_char *p;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	525 ssize_t flen;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	526 ngx_str_t res;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	527 ngx_int_t rc;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	528 ngx_uint_t nframes, expand;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	529 ngx_msec_t now;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	530 ngx_queue_t *q;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	531 ngx_quic_frame_t *f;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	532 ngx_quic_header_t pkt;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	533 ngx_quic_connection_t *qc;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	534 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	535
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	536 if (ngx_queue_empty(&ctx->frames)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	537 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	538 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	539
8945 e72db9162180 QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c. Vladimir Homutov <vl@nginx.com> parents: 8941 diff changeset	540 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	541 "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	542 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	543
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	544 qc = ngx_quic_get_connection(c);
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	545
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	546 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	547
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	548 min_payload = ngx_quic_payload_size(&pkt, min);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	549 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	550
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	551 /* RFC 9001, 5.4.2. Header Protection Sample */
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	552 pad = 4 - pkt.num_len;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	553 min_payload = ngx_max(min_payload, pad);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	554
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	555 if (min_payload > max_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	556 return 0;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	557 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	558
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	559 now = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	560 nframes = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	561 p = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	562 len = 0;
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	563 expand = 0;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	564
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	565 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	566 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	567 q = ngx_queue_next(q))
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	568 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	569 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	570
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	571 if (!expand && (f->type == NGX_QUIC_FT_PATH_RESPONSE
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	572 \|\| f->type == NGX_QUIC_FT_PATH_CHALLENGE))
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	573 {
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	574 /*
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	575 * RFC 9000, 8.2.1. Initiating Path Validation
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	576 *
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	577 * An endpoint MUST expand datagrams that contain a
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	578 * PATH_CHALLENGE frame to at least the smallest allowed
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	579 * maximum datagram size of 1200 bytes...
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 * (same applies to PATH_RESPONSE frames)
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	582 */
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	583
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	584 if (max < 1200) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	585 /* expanded packet will not fit */
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	586 break;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	587 }
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 if (min < 1200) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	590 min = 1200;
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 min_payload = ngx_quic_payload_size(&pkt, min);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	593 }
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	594
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	595 expand = 1;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	596 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	597
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	598 if (len >= max_payload) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	599 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	600 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	601
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	602 if (len + f->len > max_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	603 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	604
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	605 if (rc == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	606 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	607 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	608
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	609 if (rc == NGX_DECLINED) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	610 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	611 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	612 }
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 if (f->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	615 pkt.need_ack = 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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	618 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	619
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	620 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	621 if (flen == -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	622 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	623 }
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 len += flen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	626 p += flen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	627
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	628 f->pnum = ctx->pnum;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	629 f->first = now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	630 f->last = now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	631 f->plen = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	632
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	633 nframes++;
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 if (nframes == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	637 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	638 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	639
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	640 if (len < min_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	641 ngx_memset(p, NGX_QUIC_FT_PADDING, min_payload - len);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	642 len = min_payload;
9075 12b756caaf16 QUIC: fixed indentation. Sergey Kandaurov <pluknet@nginx.com> parents: 9072 diff changeset	643 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	644
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	645 pkt.payload.data = src;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	646 pkt.payload.len = len;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	647
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	648 res.data = data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	649
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	650 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	651 "quic packet tx %s bytes:%ui"
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	652 " 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	653 ngx_quic_level_name(ctx->level), pkt.payload.len,
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	654 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	655
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	656 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	657 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	658 }
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 ctx->pnum++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	661
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	662 if (pkt.need_ack) {
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	663 q = ngx_queue_head(&ctx->frames);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	664 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	665
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	666 f->plen = res.len;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	667 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	668
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	669 while (nframes--) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	670 q = ngx_queue_head(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	671 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	672
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	673 f->pkt_need_ack = pkt.need_ack;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	674
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	675 ngx_queue_remove(q);
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	676 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	677 }
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 return res.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	680 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	681
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	682
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	683 static void
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	684 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	685 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	686 {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	687 ngx_quic_connection_t *qc;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	688
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	689 qc = ngx_quic_get_connection(c);
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	690
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	691 ngx_memzero(pkt, sizeof(ngx_quic_header_t));
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	692
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	693 pkt->flags = NGX_QUIC_PKT_FIXED_BIT;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	694
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	695 if (ctx->level == ssl_encryption_initial) {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	696 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	697
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	698 } else if (ctx->level == ssl_encryption_handshake) {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	699 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	700
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	701 } else {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	702 if (qc->key_phase) {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	703 pkt->flags \|= NGX_QUIC_PKT_KPHASE;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	704 }
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
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	707 pkt->dcid.data = path->cid->id;
1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	708 pkt->dcid.len = path->cid->len;
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	709
8985 da24a78720eb QUIC: fixed handling of initial source connection id. Vladimir Homutov <vl@nginx.com> parents: 8980 diff changeset	710 pkt->scid = qc->tp.initial_scid;
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	711
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	712 pkt->version = qc->version;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	713 pkt->log = c->log;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	714 pkt->level = ctx->level;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	715
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	716 pkt->keys = qc->keys;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	717
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	718 ngx_quic_set_packet_number(pkt, ctx);
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	719 }
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
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	722 static ssize_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	723 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	724 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	725 {
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	726 ssize_t n;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	727 struct iovec iov;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	728 struct msghdr msg;
8976 4646a981111f QUIC: fixed macro style. Vladimir Homutov <vl@nginx.com> parents: 8973 diff changeset	729 #if (NGX_HAVE_ADDRINFO_CMSG)
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	730 struct cmsghdr *cmsg;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	731 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	732 #endif
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	733
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	734 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	735
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	736 iov.iov_len = len;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	737 iov.iov_base = buf;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	738
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	739 msg.msg_iov = &iov;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	740 msg.msg_iovlen = 1;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	741
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	742 msg.msg_name = sockaddr;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	743 msg.msg_namelen = socklen;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	744
8976 4646a981111f QUIC: fixed macro style. Vladimir Homutov <vl@nginx.com> parents: 8973 diff changeset	745 #if (NGX_HAVE_ADDRINFO_CMSG)
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	746 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	747
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	748 msg.msg_control = msg_control;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	749 msg.msg_controllen = sizeof(msg_control);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	750 ngx_memzero(msg_control, sizeof(msg_control));
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	751
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	752 cmsg = CMSG_FIRSTHDR(&msg);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	753
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	754 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	755 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	756 #endif
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	757
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	758 n = ngx_sendmsg(c, &msg, 0);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	759 if (n < 0) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	760 return n;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	761 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	762
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	763 c->sent += n;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	764
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	765 return n;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	766 }
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 static void
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	770 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	771 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	772 uint64_t delta;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	773
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	774 delta = ctx->pnum - ctx->largest_ack;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	775 pkt->number = ctx->pnum;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	776
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	777 if (delta <= 0x7F) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	778 pkt->num_len = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	779 pkt->trunc = ctx->pnum & 0xff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	780
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	781 } else if (delta <= 0x7FFF) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	782 pkt->num_len = 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	783 pkt->flags \|= 0x1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	784 pkt->trunc = ctx->pnum & 0xffff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	785
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	786 } else if (delta <= 0x7FFFFF) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	787 pkt->num_len = 3;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	788 pkt->flags \|= 0x2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	789 pkt->trunc = ctx->pnum & 0xffffff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	790
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	791 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	792 pkt->num_len = 4;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	793 pkt->flags \|= 0x3;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	794 pkt->trunc = ctx->pnum & 0xffffffff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	795 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	796 }
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 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	800 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	801 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	802 size_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	803 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	804 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	805
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	806 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	807 "sending version negotiation packet");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	808
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	809 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	810 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	811 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	812 pkt.scid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	813
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	814 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	815
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	816 #ifdef NGX_QUIC_DEBUG_PACKETS
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	817 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	818 "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	819 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	820
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	821 (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	822
8973 e5509ff0dfd2 QUIC: avoid logging error in case of version negotiation. Vladimir Homutov <vl@nginx.com> parents: 8971 diff changeset	823 return NGX_DONE;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	824 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	825
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	826
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	827 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	828 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	829 ngx_quic_header_t *pkt)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	830 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	831 u_char *token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	832 size_t len, max;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	833 uint16_t rndbytes;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	834 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	835
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	836 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	837 "quic handle stateless reset output");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	838
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	839 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	840 return NGX_DECLINED;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	841 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	842
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	843 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	844 len = pkt->len - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	845
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	846 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	847 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	848
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	849 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	850 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	851 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	852
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	853 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	854 + NGX_QUIC_MIN_SR_PACKET;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	855 }
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 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	858 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	859 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	860
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	861 buf[0] &= ~NGX_QUIC_PKT_LONG;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	862 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	863
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	864 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	865
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	866 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	867 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	868 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	869 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	870 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	871
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	872 (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	873
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	874 return NGX_DECLINED;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	875 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	876
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	877
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	878 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	879 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	880 {
9092 9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	881 ngx_quic_frame_t frame;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	882 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	883
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	884 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	885
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	886 if (qc->draining) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	887 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	888 }
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 if (qc->closing
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	891 && 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	892 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	893 /* dot not send CC too often */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	894 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	895 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	896
9092 9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	897 ngx_memzero(&frame, sizeof(ngx_quic_frame_t));
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	898
9092 9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	899 frame.level = qc->error_level;
9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	900 frame.type = qc->error_app ? NGX_QUIC_FT_CONNECTION_CLOSE_APP
9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	901 : NGX_QUIC_FT_CONNECTION_CLOSE;
9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	902 frame.u.close.error_code = qc->error;
9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	903 frame.u.close.frame_type = qc->error_ftype;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	904
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	905 if (qc->error_reason) {
9092 9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	906 frame.u.close.reason.len = ngx_strlen(qc->error_reason);
9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	907 frame.u.close.reason.data = (u_char *) qc->error_reason;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	908 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	909
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	910 qc->last_cc = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	911
9092 9553eea74f2a QUIC: optimized immediate close. Roman Arutyunyan <arut@nginx.com> parents: 9075 diff changeset	912 return ngx_quic_frame_sendto(c, &frame, 0, qc->path);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	913 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	914
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	915
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	916 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	917 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	918 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	919 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	920 ssize_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	921 ngx_str_t res;
9025 e50f77a2d0b0 QUIC: removed ngx_quic_keys_new(). Vladimir Homutov <vl@nginx.com> parents: 9024 diff changeset	922 ngx_quic_keys_t keys;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	923 ngx_quic_frame_t frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	924 ngx_quic_header_t pkt;
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 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	927 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	928
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	929 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	930 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	931
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	932 frame.level = inpkt->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	933 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	934 frame.u.close.error_code = err;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	935
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	936 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	937 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	938
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	939 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	940 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	941 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	942 }
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 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	945
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	946 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	947 if (len == -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	948 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	949 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	950
9025 e50f77a2d0b0 QUIC: removed ngx_quic_keys_new(). Vladimir Homutov <vl@nginx.com> parents: 9024 diff changeset	951 ngx_memzero(&keys, sizeof(ngx_quic_keys_t));
e50f77a2d0b0 QUIC: removed ngx_quic_keys_new(). Vladimir Homutov <vl@nginx.com> parents: 9024 diff changeset	952
e50f77a2d0b0 QUIC: removed ngx_quic_keys_new(). Vladimir Homutov <vl@nginx.com> parents: 9024 diff changeset	953 pkt.keys = &keys;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	954
9024 f2925c80401c QUIC: avoided pool usage in ngx_quic_protection.c. Vladimir Homutov <vl@nginx.com> parents: 9009 diff changeset	955 if (ngx_quic_keys_set_initial_secret(pkt.keys, &inpkt->dcid, c->log)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	956 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	957 {
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	961 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	962 \| NGX_QUIC_PKT_INITIAL;
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 pkt.num_len = 1;
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 * pkt.num = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	967 * pkt.trunc = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	968 */
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.version = inpkt->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	971 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	972 pkt.level = inpkt->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	973 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	974 pkt.scid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	975 pkt.payload.data = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	976 pkt.payload.len = len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	977
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	978 res.data = dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	979
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	980 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	981 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	982 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	983
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	984 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	985 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	986 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	987
8994 e00295b76395 QUIC: revised ngx_quic_handle_datagram() error codes. Vladimir Homutov <vl@nginx.com> parents: 8985 diff changeset	988 return NGX_DONE;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	989 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	990
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	991
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	992 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	993 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	994 ngx_quic_header_t *inpkt)
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 time_t expires;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	997 ssize_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	998 ngx_str_t res, token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	999 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1000
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1001 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	1002 u_char dcid[NGX_QUIC_SERVER_CID_LEN];
9026 3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1003 u_char tbuf[NGX_QUIC_TOKEN_BUF_SIZE];
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1004
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1005 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	1006
9026 3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1007 token.data = tbuf;
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1008 token.len = NGX_QUIC_TOKEN_BUF_SIZE;
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1009
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1010 if (ngx_quic_new_token(c->log, c->sockaddr, c->socklen, conf->av_token_key,
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1011 &token, &inpkt->dcid, expires, 1)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1012 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1013 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1014 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1017 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	1018 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	1019 pkt.version = inpkt->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1020 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1021
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1022 pkt.odcid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1023 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1024
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1025 /* TODO: generate routable dcid */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1026 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	1027 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1028 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1029
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1030 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	1031 pkt.scid.data = dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1032
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1033 pkt.token = token;
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 res.data = buf;
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 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	1038 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1039 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1040
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1041 #ifdef NGX_QUIC_DEBUG_PACKETS
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1042 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	1043 "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	1044 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1045
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1046 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	1047 if (len < 0) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1048 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1049 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1050
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1051 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	1052 "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	1053
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1054 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	1055 * RFC 9000, 17.2.5.1. Sending a Retry Packet
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	1056 *
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	1057 * 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	1058 * 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	1059 * 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	1060 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1061 return NGX_DONE;
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
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 ngx_int_t
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1066 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	1067 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1068 time_t expires;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1069 ngx_str_t token;
9072 def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1070 ngx_chain_t *out;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1071 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1072 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1073
9026 3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1074 u_char tbuf[NGX_QUIC_TOKEN_BUF_SIZE];
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1075
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1076 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1077
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1078 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	1079
9026 3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1080 token.data = tbuf;
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1081 token.len = NGX_QUIC_TOKEN_BUF_SIZE;
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1082
3550b00d9dc8 QUIC: avoided pool usage in token calculation. Vladimir Homutov <vl@nginx.com> parents: 9025 diff changeset	1083 if (ngx_quic_new_token(c->log, path->sockaddr, path->socklen,
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1084 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	1085 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1086 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1087 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1088 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1089
9072 def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1090 out = ngx_quic_copy_buffer(c, token.data, token.len);
def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1091 if (out == NGX_CHAIN_ERROR) {
def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1092 return NGX_ERROR;
def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1093 }
def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1094
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1095 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1096 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1097 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1098 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1099
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1100 frame->level = ssl_encryption_application;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1101 frame->type = NGX_QUIC_FT_NEW_TOKEN;
9072 def8e398d7c5 QUIC: fixed broken token in NEW_TOKEN (ticket #2446). Roman Arutyunyan <arut@nginx.com> parents: 9026 diff changeset	1102 frame->data = out;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1103 frame->u.token.length = token.len;
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 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1106
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1107 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1108 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1109
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1110
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1111 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1112 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	1113 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1114 size_t len, left;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1115 uint64_t ack_delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1116 ngx_buf_t *b;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1117 ngx_uint_t i;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1118 ngx_chain_t cl, *ll;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1119 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1120 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1121
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1122 qc = ngx_quic_get_connection(c);
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 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	1125 ack_delay *= 1000;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1126 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	1127
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1128 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1129 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1130 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1131 }
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 ll = &frame->data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1134 b = NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1135
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1136 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	1137 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	1138 ctx->ranges[i].range);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1139
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1140 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	1141
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1142 if (left < len) {
8948 19e063e955bf QUIC: renamed buffer-related functions. Roman Arutyunyan <arut@nginx.com> parents: 8945 diff changeset	1143 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	1144 if (cl == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1145 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1146 }
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 *ll = cl;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1149 ll = &cl->next;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1150
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1151 b = cl->buf;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1152 left = b->end - b->last;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1153
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1154 if (left < len) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1155 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1156 }
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1159 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	1160 ctx->ranges[i].range);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1161
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1162 frame->u.ack.ranges_length += len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1163 }
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 *ll = NULL;
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 frame->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1168 frame->type = NGX_QUIC_FT_ACK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1169 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	1170 frame->u.ack.delay = ack_delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1171 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	1172 frame->u.ack.first_range = ctx->first_range;
9139 d7dec2970161 QUIC: always add ACK frame to the queue head. Roman Arutyunyan <arut@nginx.com> parents: 9093 diff changeset	1173 frame->len = ngx_quic_create_frame(NULL, frame);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1174
9139 d7dec2970161 QUIC: always add ACK frame to the queue head. Roman Arutyunyan <arut@nginx.com> parents: 9093 diff changeset	1175 ngx_queue_insert_head(&ctx->frames, &frame->queue);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1176
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1177 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1178 }
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1181 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1182 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	1183 uint64_t smallest, uint64_t largest)
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 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1186 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1187
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1188 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1189
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1190 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1191 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1192 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1195 frame->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1196 frame->type = NGX_QUIC_FT_ACK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1197 frame->u.ack.largest = largest;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1198 frame->u.ack.delay = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1199 frame->u.ack.range_count = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1200 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	1201
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1202 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1203
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1204 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1205 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1206
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1207
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1208 ngx_int_t
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1209 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	1210 size_t min, ngx_quic_path_t *path)
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1211 {
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1212 size_t min_payload, pad;
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1213 ssize_t len, sent;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1214 ngx_str_t res;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1215 ngx_quic_header_t pkt;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1216 ngx_quic_send_ctx_t *ctx;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1217 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1218
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1219 static u_char src[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1220 static u_char dst[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1221
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1222 qc = ngx_quic_get_connection(c);
9093 9ae24a9ba763 QUIC: fixed encryption level in ngx_quic_frame_sendto(). Roman Arutyunyan <arut@nginx.com> parents: 9092 diff changeset	1223 ctx = ngx_quic_get_send_ctx(qc, frame->level);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1224
8971 1e2f4e9c8195 QUIC: reworked migration handling. Vladimir Homutov <vl@nginx.com> parents: 8948 diff changeset	1225 ngx_quic_init_packet(c, ctx, &pkt, path);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1226
8941 0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1227 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	1228
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1229 min_payload = min ? ngx_quic_payload_size(&pkt, min) : 0;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1230
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1231 pad = 4 - pkt.num_len;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1232 min_payload = ngx_max(min_payload, pad);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1233
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1234 len = ngx_quic_create_frame(NULL, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1235 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	1236 return NGX_ERROR;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1237 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1238
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1239 ngx_quic_log_frame(c->log, frame, 1);
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 len = ngx_quic_create_frame(src, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1242 if (len == -1) {
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1243 return NGX_ERROR;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1244 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1245
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1246 if (len < (ssize_t) min_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1247 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	1248 len = min_payload;
9075 12b756caaf16 QUIC: fixed indentation. Sergey Kandaurov <pluknet@nginx.com> parents: 9072 diff changeset	1249 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1250
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1251 pkt.payload.data = src;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1252 pkt.payload.len = len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1253
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1254 res.data = dst;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1255
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1256 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	1257 return NGX_ERROR;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1258 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1259
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1260 ctx->pnum++;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1261
8932 501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1262 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	1263 if (sent < 0) {
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1264 return NGX_ERROR;
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1265 }
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1266
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1267 path->sent += sent;
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1268
501f28679d56 QUIC: refactored ngx_quic_frame_sendto() function. Vladimir Homutov <vl@nginx.com> parents: 8916 diff changeset	1269 return NGX_OK;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1270 }
8941 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
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1273 static size_t
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1274 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	1275 {
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1276 off_t max;
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1277
9144 bba136612fe4 QUIC: removed path->limited flag. Roman Arutyunyan <arut@nginx.com> parents: 9143 diff changeset	1278 if (!path->validated) {
8941 0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1279 max = path->received * 3;
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1280 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	1281
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1282 if ((off_t) size > max) {
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1283 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	1284 "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	1285 return max;
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1286 }
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1287 }
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1288
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1289 return size;
0433e69f5425 QUIC: added path limiting function ngx_quic_path_limit(). Roman Arutyunyan <arut@nginx.com> parents: 8940 diff changeset	1290 }

Mercurial > hg > nginx

annotate src/event/quic/ngx_event_quic_output.c @ 9144:bba136612fe4