nginx: src/event/quic/ngx_event_quic

annotate src/event/quic/ngx_event_quic_connid.c @ 8806:f8ad3dd142ad quic

QUIC: consider max_ack_delay=16384 invalid. As per RFC 9000: Values of 2^14 or greater are invalid.

author	Roman Arutyunyan <arut@nginx.com>
date	Wed, 30 Jun 2021 13:47:38 +0300
parents	4715f3e669f1
children	e2ec952dc295

rev	line source
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	2 /*
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	3 * Copyright (C) Nginx, Inc.
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	4 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	5
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	6
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	7 #include <ngx_config.h>
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	8 #include <ngx_core.h>
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	9 #include <ngx_event.h>
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	10 #include <ngx_event_quic_connection.h>
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	11
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	12 #define NGX_QUIC_MAX_SERVER_IDS 8
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	13
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	14
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	15 #if (NGX_QUIC_BPF)
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	16 static ngx_int_t ngx_quic_bpf_attach_id(ngx_connection_t c, u_char id);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	17 #endif
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	18 static ngx_int_t ngx_quic_send_retire_connection_id(ngx_connection_t *c,
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	19 uint64_t seqnum);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	20
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	21 static ngx_quic_client_id_t ngx_quic_alloc_client_id(ngx_connection_t c,
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	22 ngx_quic_connection_t *qc);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	23 static ngx_int_t ngx_quic_replace_retired_client_id(ngx_connection_t *c,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	24 ngx_quic_client_id_t *retired_cid);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	25 static ngx_int_t ngx_quic_send_server_id(ngx_connection_t *c,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	26 ngx_quic_server_id_t *sid);
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	27
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	28
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	29 ngx_int_t
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	30 ngx_quic_create_server_id(ngx_connection_t c, u_char id)
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	31 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	32 if (RAND_bytes(id, NGX_QUIC_SERVER_CID_LEN) != 1) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	33 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	34 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	35
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	36 #if (NGX_QUIC_BPF)
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	37 if (ngx_quic_bpf_attach_id(c, id) != NGX_OK) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	38 ngx_log_error(NGX_LOG_ERR, c->log, 0,
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	39 "quic bpf failed to generate socket key");
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	40 /* ignore error, things still may work */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	41 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	42 #endif
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	43
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	44 return NGX_OK;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	45 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	46
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	47
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	48 #if (NGX_QUIC_BPF)
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	49
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	50 static ngx_int_t
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	51 ngx_quic_bpf_attach_id(ngx_connection_t c, u_char id)
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	52 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	53 int fd;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	54 uint64_t cookie;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	55 socklen_t optlen;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	56
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	57 fd = c->listening->fd;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	58
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	59 optlen = sizeof(cookie);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	60
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	61 if (getsockopt(fd, SOL_SOCKET, SO_COOKIE, &cookie, &optlen) == -1) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	62 ngx_log_error(NGX_LOG_ERR, c->log, ngx_socket_errno,
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	63 "quic getsockopt(SO_COOKIE) failed");
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	64
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	65 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	66 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	67
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	68 ngx_quic_dcid_encode_key(id, cookie);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	69
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	70 return NGX_OK;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	71 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	72
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	73 #endif
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	74
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	75
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	76 ngx_int_t
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	77 ngx_quic_handle_new_connection_id_frame(ngx_connection_t *c,
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	78 ngx_quic_new_conn_id_frame_t *f)
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	79 {
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	80 ngx_str_t id;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	81 ngx_queue_t *q;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	82 ngx_quic_client_id_t cid, item;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	83 ngx_quic_connection_t *qc;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	84
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	85 qc = ngx_quic_get_connection(c);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	86
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	87 if (f->seqnum < qc->max_retired_seqnum) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	88 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	89 * RFC 9000, 19.15. NEW_CONNECTION_ID Frame
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	90 *
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	91 * An endpoint that receives a NEW_CONNECTION_ID frame with
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	92 * a sequence number smaller than the Retire Prior To field
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	93 * of a previously received NEW_CONNECTION_ID frame MUST send
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	94 * a corresponding RETIRE_CONNECTION_ID frame that retires
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	95 * the newly received connection ID, unless it has already
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	96 * done so for that sequence number.
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	97 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	98
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	99 if (ngx_quic_send_retire_connection_id(c, f->seqnum) != NGX_OK) {
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	100 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	101 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	102
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	103 goto retire;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	104 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	105
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	106 cid = NULL;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	107
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	108 for (q = ngx_queue_head(&qc->client_ids);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	109 q != ngx_queue_sentinel(&qc->client_ids);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	110 q = ngx_queue_next(q))
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	111 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	112 item = ngx_queue_data(q, ngx_quic_client_id_t, queue);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	113
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	114 if (item->seqnum == f->seqnum) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	115 cid = item;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	116 break;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	117 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	118 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	119
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	120 if (cid) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	121 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	122 * Transmission errors, timeouts, and retransmissions might cause the
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	123 * same NEW_CONNECTION_ID frame to be received multiple times.
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	124 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	125
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	126 if (cid->len != f->len
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	127 \|\| ngx_strncmp(cid->id, f->cid, f->len) != 0
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	128 \|\| ngx_strncmp(cid->sr_token, f->srt, NGX_QUIC_SR_TOKEN_LEN) != 0)
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	129 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	130 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	131 * ..if a sequence number is used for different connection IDs,
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	132 * the endpoint MAY treat that receipt as a connection error
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	133 * of type PROTOCOL_VIOLATION.
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	134 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	135 qc->error = NGX_QUIC_ERR_PROTOCOL_VIOLATION;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	136 qc->error_reason = "seqnum refers to different connection id/token";
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	137 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	138 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	139
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	140 } else {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	141
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	142 id.data = f->cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	143 id.len = f->len;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	144
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	145 if (ngx_quic_create_client_id(c, &id, f->seqnum, f->srt) == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	146 return NGX_ERROR;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	147 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	148 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	149
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	150 retire:
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	151
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	152 if (qc->max_retired_seqnum && f->retire <= qc->max_retired_seqnum) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	153 /*
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	154 * Once a sender indicates a Retire Prior To value, smaller values sent
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	155 * in subsequent NEW_CONNECTION_ID frames have no effect. A receiver
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	156 * MUST ignore any Retire Prior To fields that do not increase the
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	157 * largest received Retire Prior To value.
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	158 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	159 goto done;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	160 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	161
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	162 qc->max_retired_seqnum = f->retire;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	163
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	164 q = ngx_queue_head(&qc->client_ids);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	165
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	166 while (q != ngx_queue_sentinel(&qc->client_ids)) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	167
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	168 cid = ngx_queue_data(q, ngx_quic_client_id_t, queue);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	169 q = ngx_queue_next(q);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	170
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	171 if (cid->seqnum >= f->retire) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	172 continue;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	173 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	174
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	175 /* this connection id must be retired */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	176
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	177 if (ngx_quic_send_retire_connection_id(c, cid->seqnum) != NGX_OK) {
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	178 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	179 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	180
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	181 if (cid->refcnt) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	182 /* we are going to retire client id which is in use */
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	183 if (ngx_quic_replace_retired_client_id(c, cid) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	184 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	185 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	186 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	187
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	188 ngx_quic_unref_client_id(c, cid);
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	189 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	190
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	191 done:
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	192
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	193 if (qc->nclient_ids > qc->tp.active_connection_id_limit) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	194 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	195 * RFC 9000, 5.1.1. Issuing Connection IDs
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	196 *
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	197 * After processing a NEW_CONNECTION_ID frame and
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	198 * adding and retiring active connection IDs, if the number of active
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	199 * connection IDs exceeds the value advertised in its
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	200 * active_connection_id_limit transport parameter, an endpoint MUST
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	201 * close the connection with an error of type CONNECTION_ID_LIMIT_ERROR.
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	202 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	203 qc->error = NGX_QUIC_ERR_CONNECTION_ID_LIMIT_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	204 qc->error_reason = "too many connection ids received";
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	205 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	206 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	207
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	208 return NGX_OK;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	209 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	210
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	211
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	212 static ngx_int_t
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	213 ngx_quic_send_retire_connection_id(ngx_connection_t *c, uint64_t seqnum)
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	214 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	215 ngx_quic_frame_t *frame;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	216 ngx_quic_connection_t *qc;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	217
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	218 qc = ngx_quic_get_connection(c);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	219
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	220 frame = ngx_quic_alloc_frame(c);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	221 if (frame == NULL) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	222 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	223 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	224
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	225 frame->level = ssl_encryption_application;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	226 frame->type = NGX_QUIC_FT_RETIRE_CONNECTION_ID;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	227 frame->u.retire_cid.sequence_number = seqnum;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	228
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	229 ngx_quic_queue_frame(qc, frame);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	230
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	231 /* we are no longer going to use this client id */
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	232
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	233 return NGX_OK;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	234 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	235
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	236
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	237 static ngx_quic_client_id_t *
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	238 ngx_quic_alloc_client_id(ngx_connection_t c, ngx_quic_connection_t qc)
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	239 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	240 ngx_queue_t *q;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	241 ngx_quic_client_id_t *cid;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	242
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	243 if (!ngx_queue_empty(&qc->free_client_ids)) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	244
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	245 q = ngx_queue_head(&qc->free_client_ids);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	246 cid = ngx_queue_data(q, ngx_quic_client_id_t, queue);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	247
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	248 ngx_queue_remove(&cid->queue);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	249
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	250 ngx_memzero(cid, sizeof(ngx_quic_client_id_t));
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	251
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	252 } else {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	253
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	254 cid = ngx_pcalloc(c->pool, sizeof(ngx_quic_client_id_t));
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	255 if (cid == NULL) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	256 return NULL;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	257 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	258 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	259
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	260 return cid;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	261 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	262
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	263
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	264 ngx_quic_client_id_t *
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	265 ngx_quic_create_client_id(ngx_connection_t c, ngx_str_t id,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	266 uint64_t seqnum, u_char *token)
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	267 {
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	268 ngx_quic_client_id_t *cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	269 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	270
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	271 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	272
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	273 cid = ngx_quic_alloc_client_id(c, qc);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	274 if (cid == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	275 return NULL;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	276 }
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	277
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	278 cid->seqnum = seqnum;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	279
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	280 cid->len = id->len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	281 ngx_memcpy(cid->id, id->data, id->len);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	282
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	283 if (token) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	284 ngx_memcpy(cid->sr_token, token, NGX_QUIC_SR_TOKEN_LEN);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	285 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	286
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	287 ngx_queue_insert_tail(&qc->client_ids, &cid->queue);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	288 qc->nclient_ids++;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	289
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	290 if (seqnum > qc->client_seqnum) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	291 qc->client_seqnum = seqnum;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	292 }
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	293
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	294 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	295 "quic cid #%uL received id:%uz:%xV:%*xs",
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	296 cid->seqnum, id->len, id,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	297 (size_t) NGX_QUIC_SR_TOKEN_LEN, cid->sr_token);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	298
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	299 return cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	300 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	301
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	302
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	303 ngx_quic_client_id_t *
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	304 ngx_quic_next_client_id(ngx_connection_t *c)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	305 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	306 ngx_queue_t *q;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	307 ngx_quic_client_id_t *cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	308 ngx_quic_connection_t *qc;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	309
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	310 qc = ngx_quic_get_connection(c);
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	311
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	312 for (q = ngx_queue_head(&qc->client_ids);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	313 q != ngx_queue_sentinel(&qc->client_ids);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	314 q = ngx_queue_next(q))
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	315 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	316 cid = ngx_queue_data(q, ngx_quic_client_id_t, queue);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	317
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	318 if (cid->refcnt == 0) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	319 return cid;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	320 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	321 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	322
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	323 return NULL;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	324 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	325
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	326
8777 d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	327 ngx_quic_client_id_t *
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	328 ngx_quic_used_client_id(ngx_connection_t c, ngx_quic_path_t path)
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	329 {
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	330 ngx_queue_t *q;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	331 ngx_quic_socket_t *qsock;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	332 ngx_quic_connection_t *qc;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	333
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	334 qc = ngx_quic_get_connection(c);
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	335
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	336 /* best guess: cid used by active path is good for us */
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	337 if (qc->socket->path == path) {
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	338 return qc->socket->cid;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	339 }
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	340
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	341 for (q = ngx_queue_head(&qc->sockets);
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	342 q != ngx_queue_sentinel(&qc->sockets);
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	343 q = ngx_queue_next(q))
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	344 {
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	345 qsock = ngx_queue_data(q, ngx_quic_socket_t, queue);
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	346
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	347 if (qsock->path && qsock->path == path) {
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	348 return qsock->cid;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	349 }
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	350 }
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	351
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	352 return NULL;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	353 }
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	354
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	355
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	356 ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	357 ngx_quic_handle_retire_connection_id_frame(ngx_connection_t *c,
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	358 ngx_quic_retire_cid_frame_t *f)
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	359 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	360 ngx_quic_path_t *path;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	361 ngx_quic_socket_t qsock, *tmp;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	362 ngx_quic_client_id_t *cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	363 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	364
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	365 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	366
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	367 qsock = ngx_quic_find_socket(c, f->sequence_number);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	368 if (qsock == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	369 return NGX_OK;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	370 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	371
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	372 if (qsock->sid.seqnum == qc->socket->sid.seqnum) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	373 tmp = &qc->socket;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	374
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	375 } else if (qc->backup && qsock->sid.seqnum == qc->backup->sid.seqnum) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	376 tmp = &qc->backup;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	377
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	378 } else {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	379 tmp = NULL;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	380 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	381
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	382 if (ngx_quic_create_sockets(c) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	383 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	384 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	385
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	386 if (tmp) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	387 /* replace socket in use (active or backup) */
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	388
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	389 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	390 "quic %s socket #%uL:%uL:%uL retired",
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	391 (*tmp) == qc->socket ? "active" : "backup",
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	392 (tmp)->sid.seqnum, (tmp)->cid->seqnum,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	393 (*tmp)->path->seqnum);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	394
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	395 qsock = ngx_quic_get_unconnected_socket(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	396 if (qsock == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	397 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	398 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	399
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	400 path = (*tmp)->path;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	401 cid = (*tmp)->cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	402
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	403 ngx_quic_connect(c, qsock, path, cid);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	404
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	405
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	406 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	407 "quic %s socket is now #%uL:%uL:%uL (%s)",
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	408 (*tmp) == qc->socket ? "active" : "backup",
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	409 qsock->sid.seqnum, qsock->cid->seqnum,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	410 qsock->path->seqnum,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	411 ngx_quic_path_state_str(qsock->path));
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	412
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	413 ngx_quic_close_socket(c, tmp); / no longer used */
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	414
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	415 *tmp = qsock;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	416 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	417
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	418 return NGX_OK;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	419 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	420
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	421
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	422 ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	423 ngx_quic_create_sockets(ngx_connection_t *c)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	424 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	425 ngx_uint_t n;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	426 ngx_quic_socket_t *qsock;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	427 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	428
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	429 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	430
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	431 n = ngx_min(NGX_QUIC_MAX_SERVER_IDS, qc->ctp.active_connection_id_limit);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	432
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	433 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	434 "quic create sockets has:%ui max:%ui", qc->nsockets, n);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	435
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	436 while (qc->nsockets < n) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	437
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	438 qsock = ngx_quic_alloc_socket(c, qc);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	439 if (qsock == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	440 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	441 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	442
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	443 if (ngx_quic_listen(c, qc, qsock) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	444 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	445 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	446
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	447 if (ngx_quic_send_server_id(c, &qsock->sid) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	448 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	449 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	450 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	451
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	452 return NGX_OK;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	453 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	454
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	455
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	456 static ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	457 ngx_quic_send_server_id(ngx_connection_t c, ngx_quic_server_id_t sid)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	458 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	459 ngx_str_t dcid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	460 ngx_quic_frame_t *frame;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	461 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	462
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	463 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	464
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	465 dcid.len = sid->len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	466 dcid.data = sid->id;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	467
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	468 frame = ngx_quic_alloc_frame(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	469 if (frame == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	470 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	471 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	472
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	473 frame->level = ssl_encryption_application;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	474 frame->type = NGX_QUIC_FT_NEW_CONNECTION_ID;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	475 frame->u.ncid.seqnum = sid->seqnum;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	476 frame->u.ncid.retire = 0;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	477 frame->u.ncid.len = NGX_QUIC_SERVER_CID_LEN;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	478 ngx_memcpy(frame->u.ncid.cid, sid->id, NGX_QUIC_SERVER_CID_LEN);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	479
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	480 if (ngx_quic_new_sr_token(c, &dcid, qc->conf->sr_token_key,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	481 frame->u.ncid.srt)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	482 != NGX_OK)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	483 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	484 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	485 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	486
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	487 ngx_quic_queue_frame(qc, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	488
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	489 return NGX_OK;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	490 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	491
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	492
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	493 static ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	494 ngx_quic_replace_retired_client_id(ngx_connection_t *c,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	495 ngx_quic_client_id_t *retired_cid)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	496 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	497 ngx_queue_t *q;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	498 ngx_quic_socket_t *qsock;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	499 ngx_quic_client_id_t *cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	500 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	501
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	502 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	503
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	504 for (q = ngx_queue_head(&qc->sockets);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	505 q != ngx_queue_sentinel(&qc->sockets);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	506 q = ngx_queue_next(q))
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	507 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	508 qsock = ngx_queue_data(q, ngx_quic_socket_t, queue);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	509
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	510 if (qsock->cid == retired_cid) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	511
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	512 cid = ngx_quic_next_client_id(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	513 if (cid == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	514 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	515 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	516
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	517 qsock->cid = cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	518 cid->refcnt++;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	519
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	520 ngx_quic_unref_client_id(c, retired_cid);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	521
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	522 if (retired_cid->refcnt == 0) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	523 return NGX_OK;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	524 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	525 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	526 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	527
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	528 return NGX_OK;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	529 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	530
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	531
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	532 void
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	533 ngx_quic_unref_client_id(ngx_connection_t c, ngx_quic_client_id_t cid)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	534 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	535 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	536
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	537 cid->refcnt--;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	538
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	539 if (cid->refcnt) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	540 return;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	541 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	542
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	543 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	544
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	545 ngx_queue_remove(&cid->queue);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	546 ngx_queue_insert_head(&qc->free_client_ids, &cid->queue);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	547
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	548 qc->nclient_ids--;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	549 }

Mercurial > hg > nginx

annotate src/event/quic/ngx_event_quic_connid.c @ 8806:f8ad3dd142ad quic