nginx: src/event/quic/ngx_event_quic

annotate src/event/quic/ngx_event_quic_connid.c @ 8946:56dec0d4e5b1 quic

QUIC: avoid excessive buffer allocations in stream output. Previously, when a few bytes were send to a QUIC stream by the application, a 4K buffer was allocated for these bytes. Then a STREAM frame was created and that entire buffer was used as data for that frame. The frame with the buffer were in use up until the frame was acked by client. Meanwhile, when more bytes were send to the stream, more buffers were allocated and assigned as data to newer STREAM frames. In this scenario most buffer memory is unused. Now the unused part of the stream output buffer is available for further stream output while earlier parts of the buffer are waiting to be acked. This is achieved by splitting the output buffer.

author	Roman Arutyunyan <arut@nginx.com>
date	Fri, 24 Dec 2021 18:13:51 +0300
parents	9680f0badc95
children	32daba3aabb2

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 {
8920 9680f0badc95 QUIC: fixed using of retired connection id (ticket #2289). Vladimir Homutov <vl@nginx.com> parents: 8911 diff changeset	80 uint64_t seq;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	81 ngx_str_t id;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	82 ngx_queue_t *q;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	83 ngx_quic_client_id_t cid, item;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	84 ngx_quic_connection_t *qc;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	85
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	86 qc = ngx_quic_get_connection(c);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	87
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	88 if (f->seqnum < qc->max_retired_seqnum) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	89 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	90 * RFC 9000, 19.15. NEW_CONNECTION_ID Frame
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	91 *
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	92 * 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	93 * 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	94 * 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	95 * a corresponding RETIRE_CONNECTION_ID frame that retires
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	96 * 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	97 * done so for that sequence number.
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	98 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	99
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	100 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	101 return NGX_ERROR;
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
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	104 goto retire;
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
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	107 cid = NULL;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	108
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	109 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	110 q != ngx_queue_sentinel(&qc->client_ids);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	111 q = ngx_queue_next(q))
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	112 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	113 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	114
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	115 if (item->seqnum == f->seqnum) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	116 cid = item;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	117 break;
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
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	121 if (cid) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	122 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	123 * Transmission errors, timeouts, and retransmissions might cause the
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	124 * 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	125 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	126
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	127 if (cid->len != f->len
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	128 \|\| 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	129 \|\| 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	130 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	131 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	132 * ..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	133 * 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	134 * of type PROTOCOL_VIOLATION.
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	135 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	136 qc->error = NGX_QUIC_ERR_PROTOCOL_VIOLATION;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	137 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	138 return NGX_ERROR;
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
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	141 } else {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	142
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	143 id.data = f->cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	144 id.len = f->len;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	145
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	146 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	147 return NGX_ERROR;
8748 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
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	151 retire:
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	152
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	153 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	154 /*
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	155 * 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	156 * 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	157 * 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	158 * largest received Retire Prior To value.
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	159 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	160 goto done;
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
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	163 qc->max_retired_seqnum = f->retire;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	164
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	165 q = ngx_queue_head(&qc->client_ids);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	166
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	167 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	168
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	169 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	170 q = ngx_queue_next(q);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	171
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	172 if (cid->seqnum >= f->retire) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	173 continue;
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
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	176 /* this connection id must be retired */
8920 9680f0badc95 QUIC: fixed using of retired connection id (ticket #2289). Vladimir Homutov <vl@nginx.com> parents: 8911 diff changeset	177 seq = cid->seqnum;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	178
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	179 if (cid->refcnt) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	180 /* we are going to retire client id which is in use */
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	181 if (ngx_quic_replace_retired_client_id(c, cid) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	182 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	183 }
8896 e2ec952dc295 QUIC: fixed removal of unused client IDs. Vladimir Homutov <vl@nginx.com> parents: 8797 diff changeset	184
e2ec952dc295 QUIC: fixed removal of unused client IDs. Vladimir Homutov <vl@nginx.com> parents: 8797 diff changeset	185 } else {
e2ec952dc295 QUIC: fixed removal of unused client IDs. Vladimir Homutov <vl@nginx.com> parents: 8797 diff changeset	186 ngx_quic_unref_client_id(c, cid);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	187 }
8920 9680f0badc95 QUIC: fixed using of retired connection id (ticket #2289). Vladimir Homutov <vl@nginx.com> parents: 8911 diff changeset	188
9680f0badc95 QUIC: fixed using of retired connection id (ticket #2289). Vladimir Homutov <vl@nginx.com> parents: 8911 diff changeset	189 if (ngx_quic_send_retire_connection_id(c, seq) != NGX_OK) {
9680f0badc95 QUIC: fixed using of retired connection id (ticket #2289). Vladimir Homutov <vl@nginx.com> parents: 8911 diff changeset	190 return NGX_ERROR;
9680f0badc95 QUIC: fixed using of retired connection id (ticket #2289). Vladimir Homutov <vl@nginx.com> parents: 8911 diff changeset	191 }
8748 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
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	194 done:
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	195
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	196 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	197 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	198 * RFC 9000, 5.1.1. Issuing Connection IDs
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	199 *
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	200 * 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	201 * 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	202 * 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	203 * 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	204 * 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	205 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	206 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	207 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	208 return NGX_ERROR;
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 return NGX_OK;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	212 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	213
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 static ngx_int_t
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	216 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	217 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	218 ngx_quic_frame_t *frame;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	219 ngx_quic_connection_t *qc;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	220
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	221 qc = ngx_quic_get_connection(c);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	222
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	223 frame = ngx_quic_alloc_frame(c);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	224 if (frame == NULL) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	225 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	226 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	227
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	228 frame->level = ssl_encryption_application;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	229 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	230 frame->u.retire_cid.sequence_number = seqnum;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	231
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	232 ngx_quic_queue_frame(qc, frame);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	233
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	234 /* 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	235
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	236 return NGX_OK;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	237 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	238
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 static ngx_quic_client_id_t *
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	241 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	242 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	243 ngx_queue_t *q;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	244 ngx_quic_client_id_t *cid;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	245
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	246 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	247
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	248 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	249 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	250
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	251 ngx_queue_remove(&cid->queue);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	252
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	253 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	254
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	255 } else {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	256
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	257 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	258 if (cid == NULL) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	259 return NULL;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	260 }
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 return cid;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	264 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	265
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	266
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	267 ngx_quic_client_id_t *
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	268 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	269 uint64_t seqnum, u_char *token)
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	270 {
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	271 ngx_quic_client_id_t *cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	272 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	273
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	274 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	275
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	276 cid = ngx_quic_alloc_client_id(c, qc);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	277 if (cid == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	278 return NULL;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	279 }
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	280
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	281 cid->seqnum = seqnum;
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 cid->len = id->len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	284 ngx_memcpy(cid->id, id->data, id->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 if (token) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	287 ngx_memcpy(cid->sr_token, token, NGX_QUIC_SR_TOKEN_LEN);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	288 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	289
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	290 ngx_queue_insert_tail(&qc->client_ids, &cid->queue);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	291 qc->nclient_ids++;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	292
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	293 if (seqnum > qc->client_seqnum) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	294 qc->client_seqnum = seqnum;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	295 }
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	296
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	297 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	298 "quic cid #%uL received id:%uz:%xV:%*xs",
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	299 cid->seqnum, id->len, id,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	300 (size_t) NGX_QUIC_SR_TOKEN_LEN, cid->sr_token);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	301
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	302 return cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	303 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	304
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	305
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	306 ngx_quic_client_id_t *
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	307 ngx_quic_next_client_id(ngx_connection_t *c)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	308 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	309 ngx_queue_t *q;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	310 ngx_quic_client_id_t *cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	311 ngx_quic_connection_t *qc;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	312
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	313 qc = ngx_quic_get_connection(c);
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	314
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	315 for (q = ngx_queue_head(&qc->client_ids);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	316 q != ngx_queue_sentinel(&qc->client_ids);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	317 q = ngx_queue_next(q))
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	318 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	319 cid = ngx_queue_data(q, ngx_quic_client_id_t, queue);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	320
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	321 if (cid->refcnt == 0) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	322 return cid;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	323 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	324 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	325
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	326 return NULL;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	327 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	328
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	329
8777 d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	330 ngx_quic_client_id_t *
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	331 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	332 {
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	333 ngx_queue_t *q;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	334 ngx_quic_socket_t *qsock;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	335 ngx_quic_connection_t *qc;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	336
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	337 qc = ngx_quic_get_connection(c);
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	338
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	339 /* 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	340 if (qc->socket->path == path) {
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	341 return qc->socket->cid;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	342 }
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	343
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	344 for (q = ngx_queue_head(&qc->sockets);
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	345 q != ngx_queue_sentinel(&qc->sockets);
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	346 q = ngx_queue_next(q))
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	347 {
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	348 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	349
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	350 if (qsock->path && qsock->path == path) {
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	351 return qsock->cid;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	352 }
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 return NULL;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	356 }
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	357
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	358
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	359 ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	360 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	361 ngx_quic_retire_cid_frame_t *f)
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	362 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	363 ngx_quic_path_t *path;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	364 ngx_quic_socket_t qsock, *tmp;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	365 ngx_quic_client_id_t *cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	366 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	367
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	368 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	369
8910 f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	370 if (f->sequence_number >= qc->server_seqnum) {
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	371 /*
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	372 * RFC 9000, 19.16.
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	373 *
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	374 * Receipt of a RETIRE_CONNECTION_ID frame containing a sequence
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	375 * number greater than any previously sent to the peer MUST be
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	376 * treated as a connection error of type PROTOCOL_VIOLATION.
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	377 */
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	378 qc->error = NGX_QUIC_ERR_PROTOCOL_VIOLATION;
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	379 qc->error_reason = "sequence number of id to retire was never issued";
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	380
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	381 return NGX_ERROR;
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	382 }
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	383
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	384 qsock = ngx_quic_get_socket(c);
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	385
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	386 if (qsock->sid.seqnum == f->sequence_number) {
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	387
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	388 /*
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	389 * RFC 9000, 19.16.
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	390 *
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	391 * The sequence number specified in a RETIRE_CONNECTION_ID frame MUST
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	392 * NOT refer to the Destination Connection ID field of the packet in
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	393 * which the frame is contained. The peer MAY treat this as a
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	394 * connection error of type PROTOCOL_VIOLATION.
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	395 */
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	396
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	397 qc->error = NGX_QUIC_ERR_PROTOCOL_VIOLATION;
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	398 qc->error_reason = "sequence number of id to retire refers DCID";
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	399
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	400 return NGX_ERROR;
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	401 }
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	402
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	403 qsock = ngx_quic_find_socket(c, f->sequence_number);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	404 if (qsock == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	405 return NGX_OK;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	406 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	407
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	408 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	409 "quic socket #%uL is retired", qsock->sid.seqnum);
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	410
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	411 /* check if client is willing to retire sid we have in use */
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	412 if (qsock->sid.seqnum == qc->socket->sid.seqnum) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	413 tmp = &qc->socket;
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 } else if (qc->backup && qsock->sid.seqnum == qc->backup->sid.seqnum) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	416 tmp = &qc->backup;
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 } else {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	419
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	420 ngx_quic_close_socket(c, qsock);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	421
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	422 /* restore socket count up to a limit after deletion */
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	423 if (ngx_quic_create_sockets(c) != NGX_OK) {
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	424 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	425 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	426
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	427 return NGX_OK;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	428 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	429
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	430 /* preserve path/cid from retired socket */
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	431 path = qsock->path;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	432 cid = qsock->cid;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	433
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	434 /* ensure that closing_socket will not drop path and cid */
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	435 path->refcnt++;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	436 cid->refcnt++;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	437
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	438 ngx_quic_close_socket(c, qsock);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	439
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	440 /* restore original values */
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	441 path->refcnt--;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	442 cid->refcnt--;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	443
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	444 /* restore socket count up to a limit after deletion */
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	445 if (ngx_quic_create_sockets(c) != NGX_OK) {
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	446 goto failed;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	447 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	448
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	449 qsock = ngx_quic_get_unconnected_socket(c);
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	450 if (qsock == NULL) {
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	451 qc->error = NGX_QUIC_ERR_CONNECTION_ID_LIMIT_ERROR;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	452 qc->error_reason = "not enough server IDs";
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	453 goto failed;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	454 }
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	455
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	456 ngx_quic_connect(c, qsock, path, cid);
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	457
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	458 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	459 "quic %s socket is now #%uL:%uL:%uL (%s)",
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	460 (*tmp) == qc->socket ? "active" : "backup",
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	461 qsock->sid.seqnum, qsock->cid->seqnum,
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	462 qsock->path->seqnum,
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	463 ngx_quic_path_state_str(qsock->path));
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	464
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	465 /* restore active/backup pointer in quic connection */
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	466 *tmp = qsock;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	467
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	468 return NGX_OK;
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	469
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	470 failed:
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	471
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	472 /*
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	473 * socket was closed, path and cid were preserved artifically
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	474 * to be reused, but it didn't happen, thus unref here
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	475 */
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	476
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	477 ngx_quic_unref_path(c, path);
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	478 ngx_quic_unref_client_id(c, cid);
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	479
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	480 return NGX_ERROR;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	481 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	482
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 ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	485 ngx_quic_create_sockets(ngx_connection_t *c)
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_uint_t n;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	488 ngx_quic_socket_t *qsock;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	489 ngx_quic_connection_t *qc;
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 qc = ngx_quic_get_connection(c);
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 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	494
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	495 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	496 "quic create sockets has:%ui max:%ui", qc->nsockets, n);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	497
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	498 while (qc->nsockets < n) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	499
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	500 qsock = ngx_quic_alloc_socket(c, qc);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	501 if (qsock == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	502 return NGX_ERROR;
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
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	505 if (ngx_quic_listen(c, qc, qsock) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	506 return NGX_ERROR;
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
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	509 if (ngx_quic_send_server_id(c, &qsock->sid) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	510 return NGX_ERROR;
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 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	513
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	514 return NGX_OK;
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
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	518 static ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	519 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	520 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	521 ngx_str_t dcid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	522 ngx_quic_frame_t *frame;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	523 ngx_quic_connection_t *qc;
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 qc = ngx_quic_get_connection(c);
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 dcid.len = sid->len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	528 dcid.data = sid->id;
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 frame = ngx_quic_alloc_frame(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	531 if (frame == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	532 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	533 }
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 frame->level = ssl_encryption_application;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	536 frame->type = NGX_QUIC_FT_NEW_CONNECTION_ID;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	537 frame->u.ncid.seqnum = sid->seqnum;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	538 frame->u.ncid.retire = 0;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	539 frame->u.ncid.len = NGX_QUIC_SERVER_CID_LEN;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	540 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	541
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	542 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	543 frame->u.ncid.srt)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	544 != NGX_OK)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	545 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	546 return NGX_ERROR;
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
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	549 ngx_quic_queue_frame(qc, frame);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	550
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	551 return NGX_OK;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	552 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	553
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	554
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	555 static ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	556 ngx_quic_replace_retired_client_id(ngx_connection_t *c,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	557 ngx_quic_client_id_t *retired_cid)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	558 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	559 ngx_queue_t *q;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	560 ngx_quic_socket_t *qsock;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	561 ngx_quic_client_id_t *cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	562 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	563
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	564 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	565
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	566 for (q = ngx_queue_head(&qc->sockets);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	567 q != ngx_queue_sentinel(&qc->sockets);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	568 q = ngx_queue_next(q))
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	569 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	570 qsock = ngx_queue_data(q, ngx_quic_socket_t, queue);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	571
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	572 if (qsock->cid == retired_cid) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	573
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	574 cid = ngx_quic_next_client_id(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	575 if (cid == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	576 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	577 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	578
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	579 qsock->cid = cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	580 cid->refcnt++;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	581
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	582 ngx_quic_unref_client_id(c, retired_cid);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	583
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	584 if (retired_cid->refcnt == 0) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	585 return NGX_OK;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	586 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	587 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	588 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	589
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	590 return NGX_OK;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	591 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	592
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	593
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	594 void
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	595 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	596 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	597 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	598
8896 e2ec952dc295 QUIC: fixed removal of unused client IDs. Vladimir Homutov <vl@nginx.com> parents: 8797 diff changeset	599 if (cid->refcnt) {
e2ec952dc295 QUIC: fixed removal of unused client IDs. Vladimir Homutov <vl@nginx.com> parents: 8797 diff changeset	600 cid->refcnt--;
e2ec952dc295 QUIC: fixed removal of unused client IDs. Vladimir Homutov <vl@nginx.com> parents: 8797 diff changeset	601 } /* else: unused client id */
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	602
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	603 if (cid->refcnt) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	604 return;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	605 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	606
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	607 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	608
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	609 ngx_queue_remove(&cid->queue);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	610 ngx_queue_insert_head(&qc->free_client_ids, &cid->queue);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	611
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	612 qc->nclient_ids--;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	613 }

Mercurial > hg > nginx

annotate src/event/quic/ngx_event_quic_connid.c @ 8946:56dec0d4e5b1 quic