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

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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 7296b38f6416
children
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/*
 * Copyright (C) Nginx, Inc.
 */

#ifndef _NGX_SETAFFINITY_H_INCLUDED_
#define _NGX_SETAFFINITY_H_INCLUDED_


#if (NGX_HAVE_SCHED_SETAFFINITY || NGX_HAVE_CPUSET_SETAFFINITY)

#define NGX_HAVE_CPU_AFFINITY 1

#if (NGX_HAVE_SCHED_SETAFFINITY)

typedef cpu_set_t  ngx_cpuset_t;

#elif (NGX_HAVE_CPUSET_SETAFFINITY)

#include <sys/cpuset.h>

typedef cpuset_t  ngx_cpuset_t;

#endif

void ngx_setaffinity(ngx_cpuset_t *cpu_affinity, ngx_log_t *log);

#else

#define ngx_setaffinity(cpu_affinity, log)

typedef uint64_t  ngx_cpuset_t;

#endif


#endif /* _NGX_SETAFFINITY_H_INCLUDED_ */