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Index of /FSS-OZR/root/sys/block/sda/subsystem
Index of /FSS-OZR/root/sys/block/sda/subsystem
Ǿ File not found.
eYk ? /* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Linux INET6 implementation
*
* Authors:
* Pedro Roque
*/
#ifndef _NET_IPV6_H
#define _NET_IPV6_H
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
struct ip_tunnel_info;
#define SIN6_LEN_RFC2133 24
#define IPV6_MAXPLEN 65535
/*
* NextHeader field of IPv6 header
*/
#define NEXTHDR_HOP 0 /* Hop-by-hop option header. */
#define NEXTHDR_IPV4 4 /* IPv4 in IPv6 */
#define NEXTHDR_TCP 6 /* TCP segment. */
#define NEXTHDR_UDP 17 /* UDP message. */
#define NEXTHDR_IPV6 41 /* IPv6 in IPv6 */
#define NEXTHDR_ROUTING 43 /* Routing header. */
#define NEXTHDR_FRAGMENT 44 /* Fragmentation/reassembly header. */
#define NEXTHDR_GRE 47 /* GRE header. */
#define NEXTHDR_ESP 50 /* Encapsulating security payload. */
#define NEXTHDR_AUTH 51 /* Authentication header. */
#define NEXTHDR_ICMP 58 /* ICMP for IPv6. */
#define NEXTHDR_NONE 59 /* No next header */
#define NEXTHDR_DEST 60 /* Destination options header. */
#define NEXTHDR_SCTP 132 /* SCTP message. */
#define NEXTHDR_MOBILITY 135 /* Mobility header. */
#define NEXTHDR_MAX 255
#define IPV6_DEFAULT_HOPLIMIT 64
#define IPV6_DEFAULT_MCASTHOPS 1
/* Limits on Hop-by-Hop and Destination options.
*
* Per RFC8200 there is no limit on the maximum number or lengths of options in
* Hop-by-Hop or Destination options other then the packet must fit in an MTU.
* We allow configurable limits in order to mitigate potential denial of
* service attacks.
*
* There are three limits that may be set:
* - Limit the number of options in a Hop-by-Hop or Destination options
* extension header
* - Limit the byte length of a Hop-by-Hop or Destination options extension
* header
* - Disallow unknown options
*
* The limits are expressed in corresponding sysctls:
*
* ipv6.sysctl.max_dst_opts_cnt
* ipv6.sysctl.max_hbh_opts_cnt
* ipv6.sysctl.max_dst_opts_len
* ipv6.sysctl.max_hbh_opts_len
*
* max_*_opts_cnt is the number of TLVs that are allowed for Destination
* options or Hop-by-Hop options. If the number is less than zero then unknown
* TLVs are disallowed and the number of known options that are allowed is the
* absolute value. Setting the