nginx: src/event/quic/ngx_event_quic

annotate src/event/quic/ngx_event_quic_connid.c @ 8911:b09f055daa4e quic

QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Previously, the retired socket was not closed if it didn't match active or backup. New sockets could not be created (due to count limit), since retired socket was not closed before calling ngx_quic_create_sockets(). When replacing retired socket, new socket is only requested after closing old one, to avoid hitting the limit on the number of active connection ids. Together with added restrictions, this fixes an issue when a current socket could be closed during migration, recreated and erroneously reused leading to null pointer dereference.

author	Vladimir Homutov <vl@nginx.com>
date	Thu, 18 Nov 2021 14:19:36 +0300
parents	f8848f5a1014
children	9680f0badc95

rev	line source
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	2 /*
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	3 * Copyright (C) Nginx, Inc.
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	4 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	5
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	6
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	7 #include <ngx_config.h>
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	8 #include <ngx_core.h>
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	9 #include <ngx_event.h>
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	10 #include <ngx_event_quic_connection.h>
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	11
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	12 #define NGX_QUIC_MAX_SERVER_IDS 8
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	13
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	14
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	15 #if (NGX_QUIC_BPF)
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	16 static ngx_int_t ngx_quic_bpf_attach_id(ngx_connection_t c, u_char id);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	17 #endif
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	18 static ngx_int_t ngx_quic_send_retire_connection_id(ngx_connection_t *c,
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	19 uint64_t seqnum);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	20
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	21 static ngx_quic_client_id_t ngx_quic_alloc_client_id(ngx_connection_t c,
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	22 ngx_quic_connection_t *qc);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	23 static ngx_int_t ngx_quic_replace_retired_client_id(ngx_connection_t *c,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	24 ngx_quic_client_id_t *retired_cid);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	25 static ngx_int_t ngx_quic_send_server_id(ngx_connection_t *c,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	26 ngx_quic_server_id_t *sid);
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	27
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	28
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	29 ngx_int_t
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	30 ngx_quic_create_server_id(ngx_connection_t c, u_char id)
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	31 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	32 if (RAND_bytes(id, NGX_QUIC_SERVER_CID_LEN) != 1) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	33 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	34 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	35
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	36 #if (NGX_QUIC_BPF)
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	37 if (ngx_quic_bpf_attach_id(c, id) != NGX_OK) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	38 ngx_log_error(NGX_LOG_ERR, c->log, 0,
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	39 "quic bpf failed to generate socket key");
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	40 /* ignore error, things still may work */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	41 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	42 #endif
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	43
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	44 return NGX_OK;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	45 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	46
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	47
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	48 #if (NGX_QUIC_BPF)
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	49
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	50 static ngx_int_t
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	51 ngx_quic_bpf_attach_id(ngx_connection_t c, u_char id)
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	52 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	53 int fd;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	54 uint64_t cookie;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	55 socklen_t optlen;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	56
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	57 fd = c->listening->fd;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	58
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	59 optlen = sizeof(cookie);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	60
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	61 if (getsockopt(fd, SOL_SOCKET, SO_COOKIE, &cookie, &optlen) == -1) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	62 ngx_log_error(NGX_LOG_ERR, c->log, ngx_socket_errno,
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	63 "quic getsockopt(SO_COOKIE) failed");
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	64
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	65 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	66 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	67
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	68 ngx_quic_dcid_encode_key(id, cookie);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	69
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	70 return NGX_OK;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	71 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	72
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	73 #endif
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	74
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	75
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	76 ngx_int_t
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	77 ngx_quic_handle_new_connection_id_frame(ngx_connection_t *c,
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	78 ngx_quic_new_conn_id_frame_t *f)
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	79 {
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	80 ngx_str_t id;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	81 ngx_queue_t *q;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	82 ngx_quic_client_id_t cid, item;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	83 ngx_quic_connection_t *qc;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	84
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	85 qc = ngx_quic_get_connection(c);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	86
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	87 if (f->seqnum < qc->max_retired_seqnum) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	88 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	89 * RFC 9000, 19.15. NEW_CONNECTION_ID Frame
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	90 *
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	91 * An endpoint that receives a NEW_CONNECTION_ID frame with
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	92 * a sequence number smaller than the Retire Prior To field
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	93 * of a previously received NEW_CONNECTION_ID frame MUST send
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	94 * a corresponding RETIRE_CONNECTION_ID frame that retires
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	95 * the newly received connection ID, unless it has already
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	96 * done so for that sequence number.
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	97 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	98
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	99 if (ngx_quic_send_retire_connection_id(c, f->seqnum) != NGX_OK) {
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	100 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	101 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	102
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	103 goto retire;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	104 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	105
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	106 cid = NULL;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	107
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	108 for (q = ngx_queue_head(&qc->client_ids);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	109 q != ngx_queue_sentinel(&qc->client_ids);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	110 q = ngx_queue_next(q))
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	111 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	112 item = ngx_queue_data(q, ngx_quic_client_id_t, queue);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	113
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	114 if (item->seqnum == f->seqnum) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	115 cid = item;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	116 break;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	117 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	118 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	119
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	120 if (cid) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	121 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	122 * Transmission errors, timeouts, and retransmissions might cause the
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	123 * same NEW_CONNECTION_ID frame to be received multiple times.
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	124 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	125
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	126 if (cid->len != f->len
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	127 \|\| ngx_strncmp(cid->id, f->cid, f->len) != 0
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	128 \|\| ngx_strncmp(cid->sr_token, f->srt, NGX_QUIC_SR_TOKEN_LEN) != 0)
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	129 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	130 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	131 * ..if a sequence number is used for different connection IDs,
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	132 * the endpoint MAY treat that receipt as a connection error
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	133 * of type PROTOCOL_VIOLATION.
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	134 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	135 qc->error = NGX_QUIC_ERR_PROTOCOL_VIOLATION;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	136 qc->error_reason = "seqnum refers to different connection id/token";
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	137 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	138 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	139
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	140 } else {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	141
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	142 id.data = f->cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	143 id.len = f->len;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	144
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	145 if (ngx_quic_create_client_id(c, &id, f->seqnum, f->srt) == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	146 return NGX_ERROR;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	147 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	148 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	149
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	150 retire:
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	151
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	152 if (qc->max_retired_seqnum && f->retire <= qc->max_retired_seqnum) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	153 /*
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	154 * Once a sender indicates a Retire Prior To value, smaller values sent
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	155 * in subsequent NEW_CONNECTION_ID frames have no effect. A receiver
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	156 * MUST ignore any Retire Prior To fields that do not increase the
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	157 * largest received Retire Prior To value.
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	158 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	159 goto done;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	160 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	161
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	162 qc->max_retired_seqnum = f->retire;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	163
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	164 q = ngx_queue_head(&qc->client_ids);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	165
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	166 while (q != ngx_queue_sentinel(&qc->client_ids)) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	167
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	168 cid = ngx_queue_data(q, ngx_quic_client_id_t, queue);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	169 q = ngx_queue_next(q);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	170
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	171 if (cid->seqnum >= f->retire) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	172 continue;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	173 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	174
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	175 /* this connection id must be retired */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	176
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	177 if (ngx_quic_send_retire_connection_id(c, cid->seqnum) != NGX_OK) {
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	178 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	179 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	180
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	181 if (cid->refcnt) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	182 /* we are going to retire client id which is in use */
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	183 if (ngx_quic_replace_retired_client_id(c, cid) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	184 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	185 }
8896 e2ec952dc295 QUIC: fixed removal of unused client IDs. Vladimir Homutov <vl@nginx.com> parents: 8797 diff changeset	186
e2ec952dc295 QUIC: fixed removal of unused client IDs. Vladimir Homutov <vl@nginx.com> parents: 8797 diff changeset	187 } else {
e2ec952dc295 QUIC: fixed removal of unused client IDs. Vladimir Homutov <vl@nginx.com> parents: 8797 diff changeset	188 ngx_quic_unref_client_id(c, cid);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	189 }
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	190 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	191
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	192 done:
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 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	195 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	196 * RFC 9000, 5.1.1. Issuing Connection IDs
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8778 diff changeset	197 *
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	198 * 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	199 * 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	200 * 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	201 * 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	202 * 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	203 */
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	204 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	205 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	206 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	207 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	208
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	209 return NGX_OK;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	210 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	211
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	212
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	213 static ngx_int_t
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	214 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	215 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	216 ngx_quic_frame_t *frame;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	217 ngx_quic_connection_t *qc;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	218
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	219 qc = ngx_quic_get_connection(c);
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 frame = ngx_quic_alloc_frame(c);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	222 if (frame == NULL) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	223 return NGX_ERROR;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	224 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	225
8778 5186ee5a94b9 QUIC: simplified sending 1-RTT only frames. Sergey Kandaurov <pluknet@nginx.com> parents: 8777 diff changeset	226 frame->level = ssl_encryption_application;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	227 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	228 frame->u.retire_cid.sequence_number = seqnum;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	229
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	230 ngx_quic_queue_frame(qc, frame);
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	231
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	232 /* 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	233
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	234 return NGX_OK;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	235 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	236
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	237
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	238 static ngx_quic_client_id_t *
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	239 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	240 {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	241 ngx_queue_t *q;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	242 ngx_quic_client_id_t *cid;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	243
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	244 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	245
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	246 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	247 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	248
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	249 ngx_queue_remove(&cid->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_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	252
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	253 } else {
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 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	256 if (cid == NULL) {
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	257 return NULL;
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	258 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	259 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	260
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	261 return cid;
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
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	264
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	265 ngx_quic_client_id_t *
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	266 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	267 uint64_t seqnum, u_char *token)
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	268 {
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	269 ngx_quic_client_id_t *cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	270 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	271
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	272 qc = ngx_quic_get_connection(c);
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 cid = ngx_quic_alloc_client_id(c, qc);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	275 if (cid == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	276 return NULL;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	277 }
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	278
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	279 cid->seqnum = seqnum;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	280
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	281 cid->len = id->len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	282 ngx_memcpy(cid->id, id->data, id->len);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	283
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	284 if (token) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	285 ngx_memcpy(cid->sr_token, token, NGX_QUIC_SR_TOKEN_LEN);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	286 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	287
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	288 ngx_queue_insert_tail(&qc->client_ids, &cid->queue);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	289 qc->nclient_ids++;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	290
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	291 if (seqnum > qc->client_seqnum) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	292 qc->client_seqnum = seqnum;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	293 }
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	294
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	295 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	296 "quic cid #%uL received id:%uz:%xV:%*xs",
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	297 cid->seqnum, id->len, id,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	298 (size_t) NGX_QUIC_SR_TOKEN_LEN, cid->sr_token);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	299
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	300 return cid;
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
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	303
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	304 ngx_quic_client_id_t *
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	305 ngx_quic_next_client_id(ngx_connection_t *c)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	306 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	307 ngx_queue_t *q;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	308 ngx_quic_client_id_t *cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	309 ngx_quic_connection_t *qc;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	310
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	311 qc = ngx_quic_get_connection(c);
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 for (q = ngx_queue_head(&qc->client_ids);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	314 q != ngx_queue_sentinel(&qc->client_ids);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	315 q = ngx_queue_next(q))
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	316 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	317 cid = ngx_queue_data(q, ngx_quic_client_id_t, queue);
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 if (cid->refcnt == 0) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	320 return cid;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	321 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	322 }
e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	323
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	324 return NULL;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	325 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	326
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	327
8777 d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	328 ngx_quic_client_id_t *
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	329 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	330 {
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	331 ngx_queue_t *q;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	332 ngx_quic_socket_t *qsock;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	333 ngx_quic_connection_t *qc;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	334
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	335 qc = ngx_quic_get_connection(c);
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 /* 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	338 if (qc->socket->path == path) {
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	339 return qc->socket->cid;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	340 }
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	341
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	342 for (q = ngx_queue_head(&qc->sockets);
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	343 q != ngx_queue_sentinel(&qc->sockets);
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	344 q = ngx_queue_next(q))
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	345 {
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	346 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	347
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	348 if (qsock->path && qsock->path == path) {
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	349 return qsock->cid;
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	350 }
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	351 }
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	352
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	353 return NULL;
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
d5f93733c17d QUIC: relaxed client id requirements. Vladimir Homutov <vl@nginx.com> parents: 8763 diff changeset	356
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	357 ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	358 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	359 ngx_quic_retire_cid_frame_t *f)
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	360 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	361 ngx_quic_path_t *path;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	362 ngx_quic_socket_t qsock, *tmp;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	363 ngx_quic_client_id_t *cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	364 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	365
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	366 qc = ngx_quic_get_connection(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	367
8910 f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	368 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	369 /*
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	370 * RFC 9000, 19.16.
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 * 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	373 * 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	374 * 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	375 */
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	376 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	377 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	378
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	379 return NGX_ERROR;
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
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	382 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	383
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	384 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	385
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	386 /*
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	387 * RFC 9000, 19.16.
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 * 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	390 * 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	391 * 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	392 * 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	393 */
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	394
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	395 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	396 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	397
f8848f5a1014 QUIC: additional checks for the RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8896 diff changeset	398 return NGX_ERROR;
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
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	401 qsock = ngx_quic_find_socket(c, f->sequence_number);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	402 if (qsock == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	403 return NGX_OK;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	404 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	405
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	406 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	407 "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	408
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	409 /* 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	410 if (qsock->sid.seqnum == qc->socket->sid.seqnum) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	411 tmp = &qc->socket;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	412
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	413 } else if (qc->backup && qsock->sid.seqnum == qc->backup->sid.seqnum) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	414 tmp = &qc->backup;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	415
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	416 } else {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	417
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	418 ngx_quic_close_socket(c, qsock);
8763 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 /* 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	421 if (ngx_quic_create_sockets(c) != NGX_OK) {
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	422 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	423 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	424
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	425 return NGX_OK;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	426 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	427
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	428 /* preserve path/cid from retired socket */
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	429 path = qsock->path;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	430 cid = qsock->cid;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	431
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	432 /* 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	433 path->refcnt++;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	434 cid->refcnt++;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	435
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	436 ngx_quic_close_socket(c, qsock);
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	437
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	438 /* restore original values */
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	439 path->refcnt--;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	440 cid->refcnt--;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	441
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	442 /* 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	443 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	444 goto failed;
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	445 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	446
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	447 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	448 if (qsock == NULL) {
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	449 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	450 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	451 goto failed;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	452 }
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	453
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	454 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	455
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	456 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	457 "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	458 (*tmp) == qc->socket ? "active" : "backup",
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	459 qsock->sid.seqnum, qsock->cid->seqnum,
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	460 qsock->path->seqnum,
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	461 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	462
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	463 /* 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	464 *tmp = qsock;
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	465
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	466 return NGX_OK;
8911 b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	467
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	468 failed:
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 /*
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	471 * 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	472 * 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	473 */
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	474
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	475 ngx_quic_unref_path(c, path);
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	476 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	477
b09f055daa4e QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Vladimir Homutov <vl@nginx.com> parents: 8910 diff changeset	478 return NGX_ERROR;
8748 e0cb1e58ca13 QUIC: separate files for connection id related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	479 }
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	480
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	481
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	482 ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	483 ngx_quic_create_sockets(ngx_connection_t *c)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	484 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	485 ngx_uint_t n;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	486 ngx_quic_socket_t *qsock;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	487 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	488
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	489 qc = ngx_quic_get_connection(c);
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 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	492
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	493 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	494 "quic create sockets has:%ui max:%ui", qc->nsockets, n);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	495
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	496 while (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 qsock = ngx_quic_alloc_socket(c, qc);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	499 if (qsock == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	500 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	501 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	502
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	503 if (ngx_quic_listen(c, qc, qsock) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	504 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	505 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	506
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	507 if (ngx_quic_send_server_id(c, &qsock->sid) != NGX_OK) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	508 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	509 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	510 }
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 return NGX_OK;
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
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 static ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	517 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	518 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	519 ngx_str_t dcid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	520 ngx_quic_frame_t *frame;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	521 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	522
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	523 qc = ngx_quic_get_connection(c);
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 dcid.len = sid->len;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	526 dcid.data = sid->id;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	527
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	528 frame = ngx_quic_alloc_frame(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	529 if (frame == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	530 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	531 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	532
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	533 frame->level = ssl_encryption_application;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	534 frame->type = NGX_QUIC_FT_NEW_CONNECTION_ID;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	535 frame->u.ncid.seqnum = sid->seqnum;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	536 frame->u.ncid.retire = 0;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	537 frame->u.ncid.len = NGX_QUIC_SERVER_CID_LEN;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	538 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	539
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	540 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	541 frame->u.ncid.srt)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	542 != NGX_OK)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	543 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	544 return NGX_ERROR;
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
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	547 ngx_quic_queue_frame(qc, frame);
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 return NGX_OK;
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
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 static ngx_int_t
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	554 ngx_quic_replace_retired_client_id(ngx_connection_t *c,
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	555 ngx_quic_client_id_t *retired_cid)
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	556 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	557 ngx_queue_t *q;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	558 ngx_quic_socket_t *qsock;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	559 ngx_quic_client_id_t *cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	560 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	561
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	562 qc = ngx_quic_get_connection(c);
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 for (q = ngx_queue_head(&qc->sockets);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	565 q != ngx_queue_sentinel(&qc->sockets);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	566 q = ngx_queue_next(q))
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	567 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	568 qsock = ngx_queue_data(q, ngx_quic_socket_t, queue);
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 if (qsock->cid == retired_cid) {
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 cid = ngx_quic_next_client_id(c);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	573 if (cid == NULL) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	574 return NGX_ERROR;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	575 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	576
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	577 qsock->cid = cid;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	578 cid->refcnt++;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	579
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	580 ngx_quic_unref_client_id(c, retired_cid);
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 if (retired_cid->refcnt == 0) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	583 return NGX_OK;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	584 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	585 }
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 return NGX_OK;
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
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 void
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	593 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	594 {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	595 ngx_quic_connection_t *qc;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	596
8896 e2ec952dc295 QUIC: fixed removal of unused client IDs. Vladimir Homutov <vl@nginx.com> parents: 8797 diff changeset	597 if (cid->refcnt) {
e2ec952dc295 QUIC: fixed removal of unused client IDs. Vladimir Homutov <vl@nginx.com> parents: 8797 diff changeset	598 cid->refcnt--;
e2ec952dc295 QUIC: fixed removal of unused client IDs. Vladimir Homutov <vl@nginx.com> parents: 8797 diff changeset	599 } /* else: unused client id */
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	600
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	601 if (cid->refcnt) {
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	602 return;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	603 }
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	604
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	605 qc = ngx_quic_get_connection(c);
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 ngx_queue_remove(&cid->queue);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	608 ngx_queue_insert_head(&qc->free_client_ids, &cid->queue);
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	609
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	610 qc->nclient_ids--;
4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8748 diff changeset	611 }

Mercurial > hg > nginx

annotate src/event/quic/ngx_event_quic_connid.c @ 8911:b09f055daa4e quic