Mercurial > hg > nginx
diff src/event/quic/ngx_event_quic_connection.h @ 9147:58afcd72446f
QUIC: path MTU discovery.
MTU selection starts by doubling the initial MTU until the first failure.
Then binary search is used to find the path MTU.
| author | Roman Arutyunyan <arut@nginx.com> |
|---|---|
| date | Mon, 14 Aug 2023 09:21:27 +0400 |
| parents | bba136612fe4 |
| children | 2880f60a80c3 |
line wrap: on
line diff
--- a/src/event/quic/ngx_event_quic_connection.h Tue Aug 08 10:43:17 2023 +0400 +++ b/src/event/quic/ngx_event_quic_connection.h Mon Aug 14 09:21:27 2023 +0400 @@ -66,6 +66,14 @@ #define ngx_quic_get_socket(c) ((ngx_quic_socket_t *)((c)->udp)) +typedef enum { + NGX_QUIC_PATH_IDLE = 0, + NGX_QUIC_PATH_VALIDATING, + NGX_QUIC_PATH_WAITING, + NGX_QUIC_PATH_MTUD +} ngx_quic_path_state_e; + + struct ngx_quic_client_id_s { ngx_queue_t queue; uint64_t seqnum; @@ -89,18 +97,22 @@ ngx_sockaddr_t sa; socklen_t socklen; ngx_quic_client_id_t *cid; + ngx_quic_path_state_e state; ngx_msec_t expires; ngx_uint_t tries; ngx_uint_t tag; + size_t mtu; + size_t mtud; + size_t max_mtu; off_t sent; off_t received; u_char challenge1[8]; u_char challenge2[8]; uint64_t seqnum; + uint64_t mtu_pnum[NGX_QUIC_PATH_RETRIES]; ngx_str_t addr_text; u_char text[NGX_SOCKADDR_STRLEN]; - unsigned validated:1; - unsigned validating:1; + ngx_uint_t validated; /* unsigned validated:1; */ };