Mercurial > hg > nginx
diff src/event/quic/ngx_event_quic_connid.c @ 8777:d5f93733c17d quic
QUIC: relaxed client id requirements.
Client IDs cannot be reused on different paths. This change allows to reuse
client id previosly seen on the same path (but with different dcid) in case
when no unused client IDs are available.
| author | Vladimir Homutov <vl@nginx.com> |
|---|---|
| date | Wed, 05 May 2021 18:11:55 +0300 |
| parents | 4117aa7fa38e |
| children | 5186ee5a94b9 |
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--- a/src/event/quic/ngx_event_quic_connid.c +++ b/src/event/quic/ngx_event_quic_connid.c @@ -325,6 +325,35 @@ ngx_quic_next_client_id(ngx_connection_t } +ngx_quic_client_id_t * +ngx_quic_used_client_id(ngx_connection_t *c, ngx_quic_path_t *path) +{ + ngx_queue_t *q; + ngx_quic_socket_t *qsock; + ngx_quic_connection_t *qc; + + qc = ngx_quic_get_connection(c); + + /* best guess: cid used by active path is good for us */ + if (qc->socket->path == path) { + return qc->socket->cid; + } + + for (q = ngx_queue_head(&qc->sockets); + q != ngx_queue_sentinel(&qc->sockets); + q = ngx_queue_next(q)) + { + qsock = ngx_queue_data(q, ngx_quic_socket_t, queue); + + if (qsock->path && qsock->path == path) { + return qsock->cid; + } + } + + return NULL; +} + + ngx_int_t ngx_quic_handle_retire_connection_id_frame(ngx_connection_t *c, ngx_quic_header_t *pkt, ngx_quic_retire_cid_frame_t *f)