136 lines
3.9 KiB
C
136 lines
3.9 KiB
C
/******************************************************************************
|
|
*
|
|
* Copyright(c) 2007 - 2017 Realtek Corporation.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of version 2 of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
*****************************************************************************/
|
|
#ifndef _LINUX_IP_H
|
|
#define _LINUX_IP_H
|
|
|
|
/* SOL_IP socket options */
|
|
|
|
#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_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
|
|
|
|
/* struct timestamp, struct route and MAX_ROUTES are removed.
|
|
|
|
REASONS: it is clear that nobody used them because:
|
|
- MAX_ROUTES value was wrong.
|
|
- "struct route" was wrong.
|
|
- "struct timestamp" had fatally misaligned bitfields and was completely unusable.
|
|
*/
|
|
|
|
#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 */
|
|
|
|
#ifdef PLATFORM_LINUX
|
|
|
|
struct ip_options {
|
|
__u32 faddr; /* Saved first hop address */
|
|
unsigned char optlen;
|
|
unsigned char srr;
|
|
unsigned char rr;
|
|
unsigned char ts;
|
|
unsigned char is_setbyuser:1, /* Set by setsockopt? */
|
|
is_data:1, /* Options in __data, rather than skb */
|
|
is_strictroute:1, /* Strict source route */
|
|
srr_is_hit:1, /* Packet destination addr was our one */
|
|
is_changed:1, /* IP checksum more not valid */
|
|
rr_needaddr:1, /* Need to record addr of outgoing dev */
|
|
ts_needtime:1, /* Need to record timestamp */
|
|
ts_needaddr:1; /* Need to record addr of outgoing dev */
|
|
unsigned char router_alert;
|
|
unsigned char __pad1;
|
|
unsigned char __pad2;
|
|
unsigned char __data[0];
|
|
};
|
|
|
|
#define optlength(opt) (sizeof(struct ip_options) + opt->optlen)
|
|
#endif
|
|
|
|
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;
|
|
__u16 tot_len;
|
|
__u16 id;
|
|
__u16 frag_off;
|
|
__u8 ttl;
|
|
__u8 protocol;
|
|
__u16 check;
|
|
__u32 saddr;
|
|
__u32 daddr;
|
|
/*The options start here. */
|
|
};
|
|
|
|
#endif /* _LINUX_IP_H */
|