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view src/event/ngx_event_posted.h @ 8622:183275308d9a quic

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QUIC: fixed address validation issues in a new connection. The client address validation didn't complete with a valid token, which was broken after packet processing refactoring in d0d3fc0697a0. An invalid or expired token was treated as a connection error. Now we proceed as outlined in draft-ietf-quic-transport-32, section 8.1.3 "Address Validation for Future Connections" below, which is unlike validating the client address using Retry packets. When a server receives an Initial packet with an address validation token, it MUST attempt to validate the token, unless it has already completed address validation. If the token is invalid then the server SHOULD proceed as if the client did not have a validated address, including potentially sending a Retry. The connection is now closed in this case on internal errors only.
author Sergey Kandaurov <pluknet@nginx.com>
date Mon, 02 Nov 2020 17:38:11 +0000
parents f1720934c45b
children
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_EVENT_POSTED_H_INCLUDED_
#define _NGX_EVENT_POSTED_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_event.h>


#define ngx_post_event(ev, q)                                                 \
                                                                              \
    if (!(ev)->posted) {                                                      \
        (ev)->posted = 1;                                                     \
        ngx_queue_insert_tail(q, &(ev)->queue);                               \
                                                                              \
        ngx_log_debug1(NGX_LOG_DEBUG_CORE, (ev)->log, 0, "post event %p", ev);\
                                                                              \
    } else  {                                                                 \
        ngx_log_debug1(NGX_LOG_DEBUG_CORE, (ev)->log, 0,                      \
                       "update posted event %p", ev);                         \
    }


#define ngx_delete_posted_event(ev)                                           \
                                                                              \
    (ev)->posted = 0;                                                         \
    ngx_queue_remove(&(ev)->queue);                                           \
                                                                              \
    ngx_log_debug1(NGX_LOG_DEBUG_CORE, (ev)->log, 0,                          \
                   "delete posted event %p", ev);



void ngx_event_process_posted(ngx_cycle_t *cycle, ngx_queue_t *posted);
void ngx_event_move_posted_next(ngx_cycle_t *cycle);


extern ngx_queue_t  ngx_posted_accept_events;
extern ngx_queue_t  ngx_posted_next_events;
extern ngx_queue_t  ngx_posted_events;


#endif /* _NGX_EVENT_POSTED_H_INCLUDED_ */