Mercurial > hg > nginx
changeset 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 | a6a328ebd362 |
children | 33226ac61076 |
files | src/event/quic/ngx_event_quic_connid.c |
diffstat | 1 files changed, 6 insertions(+), 4 deletions(-) [+] |
line wrap: on
line diff
--- a/src/event/quic/ngx_event_quic_connid.c +++ b/src/event/quic/ngx_event_quic_connid.c @@ -77,6 +77,7 @@ ngx_int_t ngx_quic_handle_new_connection_id_frame(ngx_connection_t *c, ngx_quic_new_conn_id_frame_t *f) { + uint64_t seq; ngx_str_t id; ngx_queue_t *q; ngx_quic_client_id_t *cid, *item; @@ -173,10 +174,7 @@ retire: } /* this connection id must be retired */ - - if (ngx_quic_send_retire_connection_id(c, cid->seqnum) != NGX_OK) { - return NGX_ERROR; - } + seq = cid->seqnum; if (cid->refcnt) { /* we are going to retire client id which is in use */ @@ -187,6 +185,10 @@ retire: } else { ngx_quic_unref_client_id(c, cid); } + + if (ngx_quic_send_retire_connection_id(c, seq) != NGX_OK) { + return NGX_ERROR; + } } done: