view src/os/unix/ngx_dlopen.h @ 8972:077a1e403446 quic

QUIC: additional limit for probing packets. RFC 9000, 9.3. Responding to Connection Migration: An endpoint only changes the address to which it sends packets in response to the highest-numbered non-probing packet. The patch extends this requirement to probing packets. Although it may seem excessive, it helps with mitigation of reply attacks (when an off-path attacker has copied packet with PATH_CHALLENGE and uses different addresses to exhaust available connection ids).
author Vladimir Homutov <vl@nginx.com>
date Thu, 20 Jan 2022 22:00:25 +0300
parents 7142b04337d6
children
line wrap: on
line source


/*
 * Copyright (C) Maxim Dounin
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_DLOPEN_H_INCLUDED_
#define _NGX_DLOPEN_H_INCLUDED_


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


#define ngx_dlopen(path)           dlopen((char *) path, RTLD_NOW | RTLD_GLOBAL)
#define ngx_dlopen_n               "dlopen()"

#define ngx_dlsym(handle, symbol)  dlsym(handle, symbol)
#define ngx_dlsym_n                "dlsym()"

#define ngx_dlclose(handle)        dlclose(handle)
#define ngx_dlclose_n              "dlclose()"


#if (NGX_HAVE_DLOPEN)
char *ngx_dlerror(void);
#endif


#endif /* _NGX_DLOPEN_H_INCLUDED_ */