nginx: src/event/quic/ngx_event_quic

annotate src/event/quic/ngx_event_quic_output.c @ 8916:ff473a6f656c quic

QUIC: ngx_quic_send_alert() callback moved to its place.

author	Sergey Kandaurov <pluknet@nginx.com>
date	Tue, 30 Nov 2021 14:30:59 +0300
parents	095f8a3e143d
children	501f28679d56

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
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	41 static ngx_int_t ngx_quic_socket_output(ngx_connection_t *c,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	42 ngx_quic_socket_t *qsock);
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	43 static ngx_int_t ngx_quic_create_datagrams(ngx_connection_t *c,
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	44 ngx_quic_socket_t *qsock);
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	45 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	46 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	47 uint64_t pnum);
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	48 #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	49 static ngx_uint_t ngx_quic_allow_segmentation(ngx_connection_t *c,
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	50 ngx_quic_socket_t *qsock);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	51 static ngx_int_t ngx_quic_create_segments(ngx_connection_t *c,
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	52 ngx_quic_socket_t *qsock);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	53 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	54 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	55 #endif
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	56 static ssize_t ngx_quic_output_packet(ngx_connection_t *c,
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	57 ngx_quic_send_ctx_t ctx, u_char data, size_t max, size_t min,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	58 ngx_quic_socket_t *qsock);
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	59 static void ngx_quic_init_packet(ngx_connection_t c, ngx_quic_send_ctx_t ctx,
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	60 ngx_quic_socket_t qsock, ngx_quic_header_t pkt);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	61 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	62 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	63 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	64 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	65 ngx_quic_send_ctx_t *ctx);
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	68 size_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	69 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	70 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	71 /* TODO: path MTU discovery */
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 #if (NGX_HAVE_INET6)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	74 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	75 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	76 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	77 #endif
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 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	80 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	81
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	82
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	83 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	84 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	85 {
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	86 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	87
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	88 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	89
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	90 if (ngx_quic_socket_output(c, qc->socket) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	91 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	92 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	93
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	94 ngx_quic_set_lost_timer(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	95
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	96 return NGX_OK;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	97 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	98
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	99
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	100 static ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	101 ngx_quic_socket_output(ngx_connection_t c, ngx_quic_socket_t qsock)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	102 {
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	103 size_t in_flight;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	104 ngx_int_t rc;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	105 ngx_quic_congestion_t *cg;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	106 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	107
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	108 c->log->action = "sending frames";
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	109
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	110 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	111 cg = &qc->congestion;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	112
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	113 in_flight = cg->in_flight;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	114
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	115 #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	116 if (ngx_quic_allow_segmentation(c, qsock)) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	117 rc = ngx_quic_create_segments(c, qsock);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	118 } else
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	119 #endif
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 rc = ngx_quic_create_datagrams(c, qsock);
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
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	124 if (rc != NGX_OK) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	125 return NGX_ERROR;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	126 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	127
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	128 if (in_flight != cg->in_flight && !qc->send_timer_set && !qc->closing) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	129 qc->send_timer_set = 1;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	130 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	131 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	132
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	133 return NGX_OK;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	134 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	135
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 static ngx_int_t
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	138 ngx_quic_create_datagrams(ngx_connection_t c, ngx_quic_socket_t qsock)
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	139 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	140 off_t max;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	141 size_t len, min;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	142 ssize_t n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	143 u_char *p;
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	144 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	145 ngx_uint_t i, pad;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	146 ngx_quic_path_t *path;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	147 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	148 ngx_quic_congestion_t *cg;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	149 ngx_quic_connection_t *qc;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	150 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	151
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	152 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	153 cg = &qc->congestion;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	154 path = qsock->path;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	155
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8822 diff changeset	156 while (cg->in_flight < cg->window) {
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8822 diff changeset	157
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	158 p = dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	159
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	160 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	161 NGX_QUIC_MAX_UDP_PAYLOAD_SIZE);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	162
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	163 if (path->state != NGX_QUIC_PATH_VALIDATED) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	164 max = path->received * 3;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	165 max = (path->sent >= max) ? 0 : max - path->sent;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	166
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	167 len = ngx_min(len, (size_t) max);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	168 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	169
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	170 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	171
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	172 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	173
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	174 ctx = &qc->send_ctx[i];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	175
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	176 preserved_pnum[i] = ctx->pnum;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	177
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	178 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	179 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	180 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	181
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	182 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	183 ? 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	184
8891 c5155a0cb12f QUIC: fixed processing of minimum packet size. Vladimir Homutov <vl@nginx.com> parents: 8823 diff changeset	185 if (min > len) {
c5155a0cb12f QUIC: fixed processing of minimum packet size. Vladimir Homutov <vl@nginx.com> parents: 8823 diff changeset	186 continue;
c5155a0cb12f QUIC: fixed processing of minimum packet size. Vladimir Homutov <vl@nginx.com> parents: 8823 diff changeset	187 }
c5155a0cb12f QUIC: fixed processing of minimum packet size. Vladimir Homutov <vl@nginx.com> parents: 8823 diff changeset	188
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	189 n = ngx_quic_output_packet(c, ctx, p, len, min, qsock);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	190 if (n == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	191 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	192 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	193
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	194 p += n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	195 len -= n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	196 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	197
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	198 len = p - dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	199 if (len == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	200 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	201 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	202
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	203 n = ngx_quic_send(c, dst, len, path->sockaddr, path->socklen);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	204
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	205 if (n == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	206 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	207 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	208
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	209 if (n == NGX_AGAIN) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	210 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	211 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	212 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	213
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	214 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	215 break;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	216 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	217
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	218 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	219 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	220 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	221
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	222 path->sent += len;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	223 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	224
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	225 return NGX_OK;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	226 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	227
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	228
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	229 static void
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	230 ngx_quic_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	231 {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	232 ngx_queue_t *q;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	233 ngx_quic_frame_t *f;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	234 ngx_quic_congestion_t *cg;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	235 ngx_quic_connection_t *qc;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	236
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	237 qc = ngx_quic_get_connection(c);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	238
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	239 cg = &qc->congestion;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	240
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	241 while (!ngx_queue_empty(&ctx->sending)) {
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 q = ngx_queue_head(&ctx->sending);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	244 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	245
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	246 ngx_queue_remove(q);
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 if (f->pkt_need_ack && !qc->closing) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	249 ngx_queue_insert_tail(&ctx->sent, q);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	250
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	251 cg->in_flight += f->plen;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	252
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	253 } else {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	254 ngx_quic_free_frame(c, f);
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 }
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 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	259 "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	260 }
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 static void
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	264 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	265 uint64_t pnum)
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	266 {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	267 ngx_queue_t *q;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	268
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	269 while (!ngx_queue_empty(&ctx->sending)) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	270
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	271 q = ngx_queue_last(&ctx->sending);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	272 ngx_queue_remove(q);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	273 ngx_queue_insert_head(&ctx->frames, q);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	274 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	275
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	276 ctx->pnum = pnum;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	277 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	278
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	279
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	280 #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	281
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	282 static ngx_uint_t
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	283 ngx_quic_allow_segmentation(ngx_connection_t c, ngx_quic_socket_t qsock)
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	284 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	285 size_t bytes, len;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	286 ngx_queue_t *q;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	287 ngx_quic_frame_t *f;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	288 ngx_quic_send_ctx_t *ctx;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	289 ngx_quic_connection_t *qc;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	290
8815 8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	291 qc = ngx_quic_get_connection(c);
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	292
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	293 if (!qc->conf->gso_enabled) {
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	294 return 0;
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	295 }
8ab0d609af09 QUIC: the "quic_gso" directive. Vladimir Homutov <vl@nginx.com> parents: 8811 diff changeset	296
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	297 if (qsock->path->state != NGX_QUIC_PATH_VALIDATED) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	298 /* 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	299 return 0;
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
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	302 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	303 if (!ngx_queue_empty(&ctx->frames)) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	304 return 0;
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
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	307 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	308 if (!ngx_queue_empty(&ctx->frames)) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	309 return 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	310 }
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 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	313
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	314 bytes = 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	315
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	316 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	317 NGX_QUIC_MAX_UDP_SEGMENT_BUF);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	318
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	319 for (q = ngx_queue_head(&ctx->frames);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	320 q != ngx_queue_sentinel(&ctx->frames);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	321 q = ngx_queue_next(q))
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 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	324
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	325 bytes += f->len;
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 if (bytes > len * 3) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	328 /* require at least ~3 full packets to batch */
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	329 return 1;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	330 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	331 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	332
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	333 return 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	334 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	335
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	336
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	337 static ngx_int_t
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	338 ngx_quic_create_segments(ngx_connection_t c, ngx_quic_socket_t qsock)
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	339 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	340 size_t len, segsize;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	341 ssize_t n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	342 u_char p, end;
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	343 uint64_t preserved_pnum;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	344 ngx_uint_t nseg;
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	345 ngx_quic_path_t *path;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	346 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	347 ngx_quic_congestion_t *cg;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	348 ngx_quic_connection_t *qc;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	349 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	350
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	351 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	352 cg = &qc->congestion;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	353 path = qsock->path;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	354
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	355 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	356
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	357 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	358 return NGX_ERROR;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	359 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	360
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	361 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	362 NGX_QUIC_MAX_UDP_SEGMENT_BUF);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	363 p = dst;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	364 end = dst + sizeof(dst);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	365
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	366 nseg = 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	367
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	368 preserved_pnum = ctx->pnum;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	369
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	370 for ( ;; ) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	371
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	372 len = ngx_min(segsize, (size_t) (end - p));
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	373
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8822 diff changeset	374 if (len && cg->in_flight < cg->window) {
8811 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 n = ngx_quic_output_packet(c, ctx, p, len, len, qsock);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	377 if (n == NGX_ERROR) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	378 return NGX_ERROR;
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
8899 25b87b392ce0 QUIC: fixed GSO packets count. Vladimir Homutov <vl@nginx.com> parents: 8894 diff changeset	381 if (n) {
25b87b392ce0 QUIC: fixed GSO packets count. Vladimir Homutov <vl@nginx.com> parents: 8894 diff changeset	382 p += n;
25b87b392ce0 QUIC: fixed GSO packets count. Vladimir Homutov <vl@nginx.com> parents: 8894 diff changeset	383 nseg++;
25b87b392ce0 QUIC: fixed GSO packets count. Vladimir Homutov <vl@nginx.com> parents: 8894 diff changeset	384 }
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	385
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	386 } else {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	387 n = 0;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	388 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	389
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	390 if (p == dst) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	391 break;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	392 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	393
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	394 if (n == 0 \|\| nseg == NGX_QUIC_MAX_SEGMENTS) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	395 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	396 path->socklen, segsize);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	397 if (n == NGX_ERROR) {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	398 return NGX_ERROR;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	399 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	400
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	401 if (n == NGX_AGAIN) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	402 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	403
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	404 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	405 break;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	406 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	407
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	408 ngx_quic_commit_send(c, ctx);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	409
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	410 path->sent += n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	411
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	412 p = dst;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	413 nseg = 0;
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	414 preserved_pnum = ctx->pnum;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	415 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	416 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	417
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	418 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	419 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	420
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	421
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	422 static ssize_t
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	423 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	424 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	425 {
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	426 size_t clen;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	427 ssize_t n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	428 uint16_t *valp;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	429 struct iovec iov;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	430 struct msghdr msg;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	431 struct cmsghdr *cmsg;
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 #if defined(NGX_HAVE_ADDRINFO_CMSG)
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	434 char msg_control[CMSG_SPACE(sizeof(uint16_t))
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	435 + CMSG_SPACE(sizeof(ngx_addrinfo_t))];
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	436 #else
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	437 char msg_control[CMSG_SPACE(sizeof(uint16_t))];
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	438 #endif
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	439
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	440 ngx_memzero(&msg, sizeof(struct msghdr));
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	441 ngx_memzero(msg_control, sizeof(msg_control));
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	442
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	443 iov.iov_len = len;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	444 iov.iov_base = buf;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	445
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	446 msg.msg_iov = &iov;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	447 msg.msg_iovlen = 1;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	448
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	449 msg.msg_name = sockaddr;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	450 msg.msg_namelen = socklen;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	451
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	452 msg.msg_control = msg_control;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	453 msg.msg_controllen = sizeof(msg_control);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	454
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	455 cmsg = CMSG_FIRSTHDR(&msg);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	456
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	457 cmsg->cmsg_level = SOL_UDP;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	458 cmsg->cmsg_type = UDP_SEGMENT;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	459 cmsg->cmsg_len = CMSG_LEN(sizeof(uint16_t));
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	460
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	461 clen = CMSG_SPACE(sizeof(uint16_t));
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	462
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	463 valp = (void *) CMSG_DATA(cmsg);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	464 *valp = segment;
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 #if defined(NGX_HAVE_ADDRINFO_CMSG)
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	467 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	468 cmsg = CMSG_NXTHDR(&msg, cmsg);
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	469 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	470 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	471 #endif
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	472
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	473 msg.msg_controllen = clen;
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 n = ngx_sendmsg(c, &msg, 0);
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	476 if (n < 0) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	477 return n;
8811 bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	478 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	479
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	480 c->sent += n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	481
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	482 return n;
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	483 }
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	484
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	485 #endif
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	486
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	487
bb5152ed045b QUIC: added support for segmentation offloading. Vladimir Homutov <vl@nginx.com> parents: 8808 diff changeset	488
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	489 static ngx_uint_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	490 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	491 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	492 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	493 ngx_quic_frame_t *f;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	494 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	495 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	496
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	497 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	498 * 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	499 *
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	500 * 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	501 * 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	502 * 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	503 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	504
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	505 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	506 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	507
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	508 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	509 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	510 q = ngx_queue_next(q))
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	511 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	512 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	513
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	514 if (f->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	515 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_handshake);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	516
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	517 if (ngx_queue_empty(&ctx->frames)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	518 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	519 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	520
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	521 return 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	522 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	523 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	524
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	525 return NGX_QUIC_SEND_CTX_LAST;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	526 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	527
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	528
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	529 static ssize_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	530 ngx_quic_output_packet(ngx_connection_t c, ngx_quic_send_ctx_t ctx,
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	531 u_char data, size_t max, size_t min, ngx_quic_socket_t qsock)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	532 {
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	533 size_t len, pad, min_payload, max_payload;
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	534 u_char *p;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	535 ssize_t flen;
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	536 ngx_str_t res;
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	537 ngx_int_t rc;
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	538 ngx_uint_t nframes, expand;
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	539 ngx_msec_t now;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	540 ngx_queue_t *q;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	541 ngx_quic_frame_t *f;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	542 ngx_quic_header_t pkt;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	543 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	544
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	545 if (ngx_queue_empty(&ctx->frames)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	546 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	547 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	548
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	549 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	550 "quic output sock #%uL %s packet max:%uz min:%uz",
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	551 qsock->sid.seqnum, ngx_quic_level_name(ctx->level),
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	552 max, min);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	553
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	554 ngx_quic_init_packet(c, ctx, qsock, &pkt);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	555
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	556 min_payload = ngx_quic_payload_size(&pkt, min);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	557 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	558
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	559 /* RFC 9001, 5.4.2. Header Protection Sample */
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	560 pad = 4 - pkt.num_len;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	561 min_payload = ngx_max(min_payload, pad);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	562
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	563 if (min_payload > max_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	564 return 0;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	565 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	566
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	567 now = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	568 nframes = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	569 p = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	570 len = 0;
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	571 expand = 0;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	572
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	573 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	574 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	575 q = ngx_queue_next(q))
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	576 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	577 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	578
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	579 if (!expand && (f->type == NGX_QUIC_FT_PATH_RESPONSE
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	580 \|\| f->type == NGX_QUIC_FT_PATH_CHALLENGE))
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	581 {
8894 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 * RFC 9000, 8.2.1. Initiating Path Validation
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	584 *
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	585 * An endpoint MUST expand datagrams that contain a
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	586 * PATH_CHALLENGE frame to at least the smallest allowed
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	587 * maximum datagram size of 1200 bytes...
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 * (same applies to PATH_RESPONSE frames)
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	590 */
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	591
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	592 if (max < 1200) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	593 /* expanded packet will not fit */
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	594 break;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	595 }
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	596
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	597 if (min < 1200) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	598 min = 1200;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	599
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	600 min_payload = ngx_quic_payload_size(&pkt, min);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	601 }
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	602
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	603 expand = 1;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	604 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	605
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	606 if (len >= max_payload) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	607 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	608 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	609
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	610 if (len + f->len > max_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	611 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	612
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	613 if (rc == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	614 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	615 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	616
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	617 if (rc == NGX_DECLINED) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	618 break;
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 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	621
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	622 if (f->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	623 pkt.need_ack = 1;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	626 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	627
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	628 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	629 if (flen == -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	630 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	631 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	632
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	633 len += flen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	634 p += flen;
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 f->pnum = ctx->pnum;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	637 f->first = now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	638 f->last = now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	639 f->plen = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	640
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	641 nframes++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	642
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	643 if (f->flush) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	644 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	645 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	646 }
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 if (nframes == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	649 return 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	650 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	651
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	652 if (len < min_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	653 ngx_memset(p, NGX_QUIC_FT_PADDING, min_payload - len);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	654 len = min_payload;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	655 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	656
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	657 pkt.payload.data = src;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	658 pkt.payload.len = len;
8751 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 res.data = data;
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 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	663 "quic packet tx %s bytes:%ui"
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	664 " 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	665 ngx_quic_level_name(ctx->level), pkt.payload.len,
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	666 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	667
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	668 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	669 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	670 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	671
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	672 ctx->pnum++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	673
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	674 if (pkt.need_ack) {
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	675 q = ngx_queue_head(&ctx->frames);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	676 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	677
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	678 f->plen = res.len;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	679 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	680
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	681 while (nframes--) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	682 q = ngx_queue_head(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	683 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	684
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	685 f->pkt_need_ack = pkt.need_ack;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	686
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	687 ngx_queue_remove(q);
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	688 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	689 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	690
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	691 return res.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	692 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	693
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	694
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	695 static void
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	696 ngx_quic_init_packet(ngx_connection_t c, ngx_quic_send_ctx_t ctx,
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	697 ngx_quic_socket_t qsock, ngx_quic_header_t pkt)
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	698 {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	699 ngx_quic_connection_t *qc;
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 qc = ngx_quic_get_connection(c);
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	702
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	703 ngx_memzero(pkt, sizeof(ngx_quic_header_t));
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 pkt->flags = NGX_QUIC_PKT_FIXED_BIT;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	706
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	707 if (ctx->level == ssl_encryption_initial) {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	708 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	709
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	710 } else if (ctx->level == ssl_encryption_handshake) {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	711 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	712
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	713 } else {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	714 if (qc->key_phase) {
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	715 pkt->flags \|= NGX_QUIC_PKT_KPHASE;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	716 }
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	717 }
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	718
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	719 pkt->dcid.data = qsock->cid->id;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	720 pkt->dcid.len = qsock->cid->len;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	721
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	722 pkt->scid.data = qsock->sid.id;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	723 pkt->scid.len = qsock->sid.len;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	724
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	725 pkt->version = qc->version;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	726 pkt->log = c->log;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	727 pkt->level = ctx->level;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	728
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	729 pkt->keys = qc->keys;
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	730
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	731 ngx_quic_set_packet_number(pkt, ctx);
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	732 }
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	733
d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	734
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	735 static ssize_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	736 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	737 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	738 {
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	739 ssize_t n;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	740 struct iovec iov;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	741 struct msghdr msg;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	742 #if defined(NGX_HAVE_ADDRINFO_CMSG)
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	743 struct cmsghdr *cmsg;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	744 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	745 #endif
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	746
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	747 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	748
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	749 iov.iov_len = len;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	750 iov.iov_base = buf;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	751
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	752 msg.msg_iov = &iov;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	753 msg.msg_iovlen = 1;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	754
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	755 msg.msg_name = sockaddr;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	756 msg.msg_namelen = socklen;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	757
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	758 #if defined(NGX_HAVE_ADDRINFO_CMSG)
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	759 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	760
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	761 msg.msg_control = msg_control;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	762 msg.msg_controllen = sizeof(msg_control);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	763 ngx_memzero(msg_control, sizeof(msg_control));
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	764
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	765 cmsg = CMSG_FIRSTHDR(&msg);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	766
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	767 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	768 }
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	769 #endif
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	770
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	771 n = ngx_sendmsg(c, &msg, 0);
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	772 if (n < 0) {
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	773 return n;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	774 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	775
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	776 c->sent += n;
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	777
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	778 return n;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	779 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	780
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	781
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	782 static void
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	783 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	784 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	785 uint64_t delta;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	786
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	787 delta = ctx->pnum - ctx->largest_ack;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	788 pkt->number = ctx->pnum;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	789
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	790 if (delta <= 0x7F) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	791 pkt->num_len = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	792 pkt->trunc = ctx->pnum & 0xff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	793
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	794 } else if (delta <= 0x7FFF) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	795 pkt->num_len = 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	796 pkt->flags \|= 0x1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	797 pkt->trunc = ctx->pnum & 0xffff;
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 } else if (delta <= 0x7FFFFF) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	800 pkt->num_len = 3;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	801 pkt->flags \|= 0x2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	802 pkt->trunc = ctx->pnum & 0xffffff;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	803
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	804 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	805 pkt->num_len = 4;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	806 pkt->flags \|= 0x3;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	807 pkt->trunc = ctx->pnum & 0xffffffff;
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 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	810
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	811
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	812 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	813 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	814 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	815 size_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	816 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	817 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	818
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	819 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	820 "sending version negotiation packet");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	821
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	822 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	823 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	824 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	825 pkt.scid = inpkt->dcid;
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 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	828
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	829 #ifdef NGX_QUIC_DEBUG_PACKETS
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	830 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	831 "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	832 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	833
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	834 (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	835
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	836 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	837 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	838
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	839
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	840 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	841 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	842 ngx_quic_header_t *pkt)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	843 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	844 u_char *token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	845 size_t len, max;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	846 uint16_t rndbytes;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	847 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	848
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	849 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	850 "quic handle stateless reset output");
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 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	853 return NGX_DECLINED;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	854 }
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 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	857 len = pkt->len - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	858
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	859 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	860 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	861
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	862 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	863 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	864 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	865
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	866 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	867 + NGX_QUIC_MIN_SR_PACKET;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	868 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	869
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	870 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	871 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	872 }
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 buf[0] &= ~NGX_QUIC_PKT_LONG;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	875 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	876
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	877 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	878
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	879 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	880 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	881 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	882 return NGX_ERROR;
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
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	885 (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	886
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	887 return NGX_DECLINED;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	891 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	892 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	893 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	894 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	895 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	896
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	897 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	898
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	899 if (qc->draining) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	900 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	901 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	902
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	903 if (qc->closing
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	904 && 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	905 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	906 /* dot not send CC too often */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	907 return NGX_OK;
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 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	911 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	912 return NGX_ERROR;
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 frame->level = qc->error_level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	916 frame->type = qc->error_app ? NGX_QUIC_FT_CONNECTION_CLOSE_APP
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	917 : NGX_QUIC_FT_CONNECTION_CLOSE;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	918 frame->u.close.error_code = qc->error;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	919 frame->u.close.frame_type = qc->error_ftype;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	920
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	921 if (qc->error_reason) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	922 frame->u.close.reason.len = ngx_strlen(qc->error_reason);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	923 frame->u.close.reason.data = (u_char *) qc->error_reason;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	924 }
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 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	927
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	928 qc->last_cc = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	929
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	930 return ngx_quic_output(c);
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	933
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	934 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	935 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	936 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	937 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	938 ssize_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	939 ngx_str_t res;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	940 ngx_quic_frame_t frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	941 ngx_quic_header_t pkt;
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 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	944 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	945
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	946 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	947 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	948
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	949 frame.level = inpkt->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	950 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	951 frame.u.close.error_code = err;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	952
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	953 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	954 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	955
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	956 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	957 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	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 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	962
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	963 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	964 if (len == -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	965 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	966 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	967
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	968 pkt.keys = ngx_quic_keys_new(c->pool);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	969 if (pkt.keys == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	970 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	971 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	972
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	973 if (ngx_quic_keys_set_initial_secret(c->pool, pkt.keys, &inpkt->dcid,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	974 inpkt->version)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	975 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	976 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	977 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	978 }
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 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	981 \| NGX_QUIC_PKT_INITIAL;
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 pkt.num_len = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	984 /*
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	985 * pkt.num = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	986 * pkt.trunc = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	987 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	988
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	989 pkt.version = inpkt->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	990 pkt.log = c->log;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	991 pkt.level = inpkt->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	992 pkt.dcid = inpkt->scid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	993 pkt.scid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	994 pkt.payload.data = src;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	995 pkt.payload.len = len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	996
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	997 res.data = dst;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	998
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	999 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	1000 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1001 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1002
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	1003 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	1004 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1005 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1006
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1007 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1008 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1009
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1010
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1011 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1012 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	1013 ngx_quic_header_t *inpkt)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1014 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1015 time_t expires;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1016 ssize_t len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1017 ngx_str_t res, token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1018 ngx_quic_header_t pkt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1019
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1020 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	1021 u_char dcid[NGX_QUIC_SERVER_CID_LEN];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1022
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1023 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	1024
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1025 if (ngx_quic_new_token(c, c->sockaddr, c->socklen, conf->av_token_key,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1026 &token, &inpkt->dcid, expires, 1)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1027 != NGX_OK)
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 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1030 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1031
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1032 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	1033 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	1034 pkt.version = inpkt->version;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1035 pkt.log = c->log;
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 pkt.odcid = inpkt->dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1038 pkt.dcid = inpkt->scid;
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 /* TODO: generate routable dcid */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1041 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	1042 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1043 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1044
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1045 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	1046 pkt.scid.data = dcid;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1047
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1048 pkt.token = token;
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 res.data = buf;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1051
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1052 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	1053 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1054 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1055
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1056 #ifdef NGX_QUIC_DEBUG_PACKETS
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1057 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	1058 "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	1059 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1060
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1061 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	1062 if (len < 0) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1063 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1064 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1065
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1066 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	1067 "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	1068
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1069 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	1070 * RFC 9000, 17.2.5.1. Sending a Retry Packet
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	1071 *
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8763 diff changeset	1072 * 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	1073 * 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	1074 * 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	1075 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1076 return NGX_DONE;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1079
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1080 ngx_int_t
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1081 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	1082 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1083 time_t expires;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1084 ngx_str_t token;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1085 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1086 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1087
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1088 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1089
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1090 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	1091
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1092 if (ngx_quic_new_token(c, path->sockaddr, path->socklen,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1093 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	1094 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1095 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1096 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1097 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1098
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1099 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1100 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1101 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1102 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1103
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1104 frame->level = ssl_encryption_application;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1105 frame->type = NGX_QUIC_FT_NEW_TOKEN;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1106 frame->u.token.length = token.len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1107 frame->u.token.data = token.data;
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 ngx_quic_queue_frame(qc, frame);
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 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1112 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1113
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1114
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1115 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1116 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	1117 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1118 size_t len, left;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1119 uint64_t ack_delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1120 ngx_buf_t *b;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1121 ngx_uint_t i;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1122 ngx_chain_t cl, *ll;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1123 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1124 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1125
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1126 qc = ngx_quic_get_connection(c);
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 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	1129 ack_delay *= 1000;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1130 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	1131
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1132 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1133 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1134 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1137 ll = &frame->data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1138 b = NULL;
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 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	1141 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	1142 ctx->ranges[i].range);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1143
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1144 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	1145
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1146 if (left < len) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1147 cl = ngx_quic_alloc_buf(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1148 if (cl == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1149 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1152 *ll = cl;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1153 ll = &cl->next;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1154
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1155 b = cl->buf;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1156 left = b->end - b->last;
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 if (left < len) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1159 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1160 }
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
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1163 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	1164 ctx->ranges[i].range);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1165
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1166 frame->u.ack.ranges_length += len;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1167 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1168
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1169 *ll = NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1170
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1171 frame->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1172 frame->type = NGX_QUIC_FT_ACK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1173 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	1174 frame->u.ack.delay = ack_delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1175 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	1176 frame->u.ack.first_range = ctx->first_range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1177
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1178 ngx_quic_queue_frame(qc, frame);
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 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1181 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1182
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1183
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1184 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1185 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	1186 uint64_t smallest, uint64_t largest)
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 ngx_quic_frame_t *frame;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1189 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1190
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1191 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1192
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1193 frame = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1194 if (frame == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1195 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1196 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1197
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1198 frame->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1199 frame->type = NGX_QUIC_FT_ACK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1200 frame->u.ack.largest = largest;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1201 frame->u.ack.delay = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1202 frame->u.ack.range_count = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1203 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	1204
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1205 ngx_quic_queue_frame(qc, frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1206
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1207 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1208 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1209
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1210
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1211 ssize_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1212 ngx_quic_frame_sendto(ngx_connection_t c, ngx_quic_frame_t frame,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1213 size_t min, struct sockaddr *sockaddr, socklen_t socklen)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1214 {
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1215 size_t min_payload, pad;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1216 ssize_t len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1217 ngx_str_t res;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1218 ngx_quic_header_t pkt;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1219 ngx_quic_send_ctx_t *ctx;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1220 ngx_quic_connection_t *qc;
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 static u_char src[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1223 static u_char dst[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE];
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1224
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1225 qc = ngx_quic_get_connection(c);
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	1226 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_application);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1227
8892 d8ac4d3c24ac QUIC: added function to initialize packet. Vladimir Homutov <vl@nginx.com> parents: 8891 diff changeset	1228 ngx_quic_init_packet(c, ctx, qc->socket, &pkt);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1229
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1230 min_payload = min ? ngx_quic_payload_size(&pkt, min) : 0;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1231
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1232 pad = 4 - pkt.num_len;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1233 min_payload = ngx_max(min_payload, pad);
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1234
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1235 len = ngx_quic_create_frame(NULL, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1236 if (len > NGX_QUIC_MAX_UDP_PAYLOAD_SIZE) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1237 return -1;
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
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1240 ngx_quic_log_frame(c->log, frame, 1);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1241
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1242 len = ngx_quic_create_frame(src, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1243 if (len == -1) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1244 return -1;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1245 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1246
8894 de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1247 if (len < (ssize_t) min_payload) {
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1248 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	1249 len = min_payload;
de7b9af30fc6 QUIC: refactored packet creation. Vladimir Homutov <vl@nginx.com> parents: 8892 diff changeset	1250 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1251
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1252 pkt.payload.data = src;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1253 pkt.payload.len = len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1254
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1255 res.data = dst;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1256
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1257 if (ngx_quic_encrypt(&pkt, &res) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1258 return -1;
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
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1261 ctx->pnum++;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1262
8822 ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets. Vladimir Homutov <vl@nginx.com> parents: 8815 diff changeset	1263 return ngx_quic_send(c, res.data, res.len, sockaddr, socklen);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8751 diff changeset	1264 }

Mercurial > hg > nginx

annotate src/event/quic/ngx_event_quic_output.c @ 8916:ff473a6f656c quic