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