nginx: src/event/quic/ngx_event_quic

annotate src/event/quic/ngx_event_quic_connid.c @ 8920:9680f0badc95 quic

QUIC: fixed using of retired connection id (ticket #2289). RFC 9000 19.16 The sequence number specified in a RETIRE_CONNECTION_ID frame MUST NOT refer to the Destination Connection ID field of the packet in which the frame is contained. Before the patch, the RETIRE_CONNECTION_ID frame was sent before switching to the new client id. If retired client id was currently in use, this lead to violation of the spec.

author	Vladimir Homutov <vl@nginx.com>
date	Thu, 02 Dec 2021 14:09:52 +0300
parents	b09f055daa4e
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 @ 8920:9680f0badc95 quic