Mercurial > hg > nginx
view src/event/quic/ngx_event_quic_migration.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 | cc16989c6d61 |
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/* * Copyright (C) Nginx, Inc. */ #ifndef _NGX_EVENT_QUIC_MIGRATION_H_INCLUDED_ #define _NGX_EVENT_QUIC_MIGRATION_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #define NGX_QUIC_PATH_RETRIES 3 #define NGX_QUIC_PATH_PROBE 0 #define NGX_QUIC_PATH_ACTIVE 1 #define NGX_QUIC_PATH_BACKUP 2 #define ngx_quic_path_dbg(c, msg, path) \ ngx_log_debug7(NGX_LOG_DEBUG_EVENT, c->log, 0, \ "quic path seq:%uL %s tx:%O rx:%O valid:%ui st:%d mtu:%uz",\ path->seqnum, msg, path->sent, path->received, \ path->validated, path->state, path->mtu); ngx_int_t ngx_quic_handle_path_challenge_frame(ngx_connection_t *c, ngx_quic_header_t *pkt, ngx_quic_path_challenge_frame_t *f); ngx_int_t ngx_quic_handle_path_response_frame(ngx_connection_t *c, ngx_quic_path_challenge_frame_t *f); ngx_quic_path_t *ngx_quic_new_path(ngx_connection_t *c, struct sockaddr *sockaddr, socklen_t socklen, ngx_quic_client_id_t *cid); ngx_int_t ngx_quic_free_path(ngx_connection_t *c, ngx_quic_path_t *path); ngx_int_t ngx_quic_set_path(ngx_connection_t *c, ngx_quic_header_t *pkt); ngx_int_t ngx_quic_handle_migration(ngx_connection_t *c, ngx_quic_header_t *pkt); void ngx_quic_path_handler(ngx_event_t *ev); void ngx_quic_discover_path_mtu(ngx_connection_t *c, ngx_quic_path_t *path); ngx_int_t ngx_quic_handle_path_mtu(ngx_connection_t *c, ngx_quic_path_t *path, uint64_t min, uint64_t max); #endif /* _NGX_EVENT_QUIC_MIGRATION_H_INCLUDED_ */