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177 lines
4.6 KiB
177 lines
4.6 KiB
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
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/* |
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* INET An implementation of the TCP/IP protocol suite for the LINUX |
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* operating system. INET is implemented using the BSD Socket |
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* interface as the means of communication with the user level. |
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* |
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* Definitions for the IP protocol. |
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* |
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* Version: @(#)ip.h 1.0.2 04/28/93 |
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* |
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* Authors: Fred N. van Kempen, <[email protected]> |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version |
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* 2 of the License, or (at your option) any later version. |
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*/ |
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#ifndef _UAPI_LINUX_IP_H |
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#define _UAPI_LINUX_IP_H |
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#include <linux/types.h> |
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#include <asm/byteorder.h> |
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#define IPTOS_TOS_MASK 0x1E |
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#define IPTOS_TOS(tos) ((tos)&IPTOS_TOS_MASK) |
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#define IPTOS_LOWDELAY 0x10 |
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#define IPTOS_THROUGHPUT 0x08 |
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#define IPTOS_RELIABILITY 0x04 |
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#define IPTOS_MINCOST 0x02 |
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#define IPTOS_PREC_MASK 0xE0 |
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#define IPTOS_PREC(tos) ((tos)&IPTOS_PREC_MASK) |
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#define IPTOS_PREC_NETCONTROL 0xe0 |
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#define IPTOS_PREC_INTERNETCONTROL 0xc0 |
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#define IPTOS_PREC_CRITIC_ECP 0xa0 |
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#define IPTOS_PREC_FLASHOVERRIDE 0x80 |
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#define IPTOS_PREC_FLASH 0x60 |
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#define IPTOS_PREC_IMMEDIATE 0x40 |
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#define IPTOS_PREC_PRIORITY 0x20 |
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#define IPTOS_PREC_ROUTINE 0x00 |
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/* IP options */ |
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#define IPOPT_COPY 0x80 |
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#define IPOPT_CLASS_MASK 0x60 |
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#define IPOPT_NUMBER_MASK 0x1f |
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#define IPOPT_COPIED(o) ((o)&IPOPT_COPY) |
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#define IPOPT_CLASS(o) ((o)&IPOPT_CLASS_MASK) |
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#define IPOPT_NUMBER(o) ((o)&IPOPT_NUMBER_MASK) |
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#define IPOPT_CONTROL 0x00 |
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#define IPOPT_RESERVED1 0x20 |
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#define IPOPT_MEASUREMENT 0x40 |
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#define IPOPT_RESERVED2 0x60 |
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#define IPOPT_END (0 |IPOPT_CONTROL) |
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#define IPOPT_NOOP (1 |IPOPT_CONTROL) |
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#define IPOPT_SEC (2 |IPOPT_CONTROL|IPOPT_COPY) |
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#define IPOPT_LSRR (3 |IPOPT_CONTROL|IPOPT_COPY) |
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#define IPOPT_TIMESTAMP (4 |IPOPT_MEASUREMENT) |
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#define IPOPT_CIPSO (6 |IPOPT_CONTROL|IPOPT_COPY) |
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#define IPOPT_RR (7 |IPOPT_CONTROL) |
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#define IPOPT_SID (8 |IPOPT_CONTROL|IPOPT_COPY) |
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#define IPOPT_SSRR (9 |IPOPT_CONTROL|IPOPT_COPY) |
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#define IPOPT_RA (20|IPOPT_CONTROL|IPOPT_COPY) |
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#define IPVERSION 4 |
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#define MAXTTL 255 |
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#define IPDEFTTL 64 |
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#define IPOPT_OPTVAL 0 |
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#define IPOPT_OLEN 1 |
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#define IPOPT_OFFSET 2 |
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#define IPOPT_MINOFF 4 |
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#define MAX_IPOPTLEN 40 |
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#define IPOPT_NOP IPOPT_NOOP |
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#define IPOPT_EOL IPOPT_END |
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#define IPOPT_TS IPOPT_TIMESTAMP |
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#define IPOPT_TS_TSONLY 0 /* timestamps only */ |
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#define IPOPT_TS_TSANDADDR 1 /* timestamps and addresses */ |
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#define IPOPT_TS_PRESPEC 3 /* specified modules only */ |
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#define IPV4_BEET_PHMAXLEN 8 |
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struct iphdr { |
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#if defined(__LITTLE_ENDIAN_BITFIELD) |
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__u8 ihl:4, |
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version:4; |
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#elif defined (__BIG_ENDIAN_BITFIELD) |
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__u8 version:4, |
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ihl:4; |
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#else |
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#error "Please fix <asm/byteorder.h>" |
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#endif |
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__u8 tos; |
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__be16 tot_len; |
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__be16 id; |
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__be16 frag_off; |
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__u8 ttl; |
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__u8 protocol; |
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__sum16 check; |
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__be32 saddr; |
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__be32 daddr; |
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/*The options start here. */ |
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}; |
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struct ip_auth_hdr { |
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__u8 nexthdr; |
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__u8 hdrlen; /* This one is measured in 32 bit units! */ |
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__be16 reserved; |
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__be32 spi; |
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__be32 seq_no; /* Sequence number */ |
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__u8 auth_data[0]; /* Variable len but >=4. Mind the 64 bit alignment! */ |
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}; |
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struct ip_esp_hdr { |
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__be32 spi; |
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__be32 seq_no; /* Sequence number */ |
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__u8 enc_data[0]; /* Variable len but >=8. Mind the 64 bit alignment! */ |
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}; |
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struct ip_comp_hdr { |
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__u8 nexthdr; |
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__u8 flags; |
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__be16 cpi; |
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}; |
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struct ip_beet_phdr { |
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__u8 nexthdr; |
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__u8 hdrlen; |
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__u8 padlen; |
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__u8 reserved; |
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}; |
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/* index values for the variables in ipv4_devconf */ |
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enum |
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{ |
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IPV4_DEVCONF_FORWARDING=1, |
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IPV4_DEVCONF_MC_FORWARDING, |
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IPV4_DEVCONF_PROXY_ARP, |
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IPV4_DEVCONF_ACCEPT_REDIRECTS, |
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IPV4_DEVCONF_SECURE_REDIRECTS, |
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IPV4_DEVCONF_SEND_REDIRECTS, |
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IPV4_DEVCONF_SHARED_MEDIA, |
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IPV4_DEVCONF_RP_FILTER, |
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IPV4_DEVCONF_ACCEPT_SOURCE_ROUTE, |
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IPV4_DEVCONF_BOOTP_RELAY, |
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IPV4_DEVCONF_LOG_MARTIANS, |
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IPV4_DEVCONF_TAG, |
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IPV4_DEVCONF_ARPFILTER, |
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IPV4_DEVCONF_MEDIUM_ID, |
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IPV4_DEVCONF_NOXFRM, |
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IPV4_DEVCONF_NOPOLICY, |
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IPV4_DEVCONF_FORCE_IGMP_VERSION, |
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IPV4_DEVCONF_ARP_ANNOUNCE, |
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IPV4_DEVCONF_ARP_IGNORE, |
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IPV4_DEVCONF_PROMOTE_SECONDARIES, |
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IPV4_DEVCONF_ARP_ACCEPT, |
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IPV4_DEVCONF_ARP_NOTIFY, |
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IPV4_DEVCONF_ACCEPT_LOCAL, |
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IPV4_DEVCONF_SRC_VMARK, |
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IPV4_DEVCONF_PROXY_ARP_PVLAN, |
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IPV4_DEVCONF_ROUTE_LOCALNET, |
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IPV4_DEVCONF_IGMPV2_UNSOLICITED_REPORT_INTERVAL, |
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IPV4_DEVCONF_IGMPV3_UNSOLICITED_REPORT_INTERVAL, |
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IPV4_DEVCONF_IGNORE_ROUTES_WITH_LINKDOWN, |
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IPV4_DEVCONF_DROP_UNICAST_IN_L2_MULTICAST, |
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IPV4_DEVCONF_DROP_GRATUITOUS_ARP, |
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IPV4_DEVCONF_BC_FORWARDING, |
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__IPV4_DEVCONF_MAX |
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}; |
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#define IPV4_DEVCONF_MAX (__IPV4_DEVCONF_MAX - 1) |
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#endif /* _UAPI_LINUX_IP_H */
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