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      1 /****************************************************************************
      2  ****************************************************************************
      3  ***
      4  ***   This header was automatically generated from a Linux kernel header
      5  ***   of the same name, to make information necessary for userspace to
      6  ***   call into the kernel available to libc.  It contains only constants,
      7  ***   structures, and macros generated from the original header, and thus,
      8  ***   contains no copyrightable information.
      9  ***
     10  ****************************************************************************
     11  ****************************************************************************/
     12 #ifndef _LINUX_IP_H
     13 #define _LINUX_IP_H
     14 #include <linux/types.h>
     15 #include <asm/byteorder.h>
     16 
     17 #define IPTOS_TOS_MASK 0x1E
     18 #define IPTOS_TOS(tos) ((tos)&IPTOS_TOS_MASK)
     19 #define IPTOS_LOWDELAY 0x10
     20 #define IPTOS_THROUGHPUT 0x08
     21 #define IPTOS_RELIABILITY 0x04
     22 #define IPTOS_MINCOST 0x02
     23 
     24 #define IPTOS_PREC_MASK 0xE0
     25 #define IPTOS_PREC(tos) ((tos)&IPTOS_PREC_MASK)
     26 #define IPTOS_PREC_NETCONTROL 0xe0
     27 #define IPTOS_PREC_INTERNETCONTROL 0xc0
     28 #define IPTOS_PREC_CRITIC_ECP 0xa0
     29 #define IPTOS_PREC_FLASHOVERRIDE 0x80
     30 #define IPTOS_PREC_FLASH 0x60
     31 #define IPTOS_PREC_IMMEDIATE 0x40
     32 #define IPTOS_PREC_PRIORITY 0x20
     33 #define IPTOS_PREC_ROUTINE 0x00
     34 
     35 #define IPOPT_COPY 0x80
     36 #define IPOPT_CLASS_MASK 0x60
     37 #define IPOPT_NUMBER_MASK 0x1f
     38 
     39 #define IPOPT_COPIED(o) ((o)&IPOPT_COPY)
     40 #define IPOPT_CLASS(o) ((o)&IPOPT_CLASS_MASK)
     41 #define IPOPT_NUMBER(o) ((o)&IPOPT_NUMBER_MASK)
     42 
     43 #define IPOPT_CONTROL 0x00
     44 #define IPOPT_RESERVED1 0x20
     45 #define IPOPT_MEASUREMENT 0x40
     46 #define IPOPT_RESERVED2 0x60
     47 
     48 #define IPOPT_END (0 |IPOPT_CONTROL)
     49 #define IPOPT_NOOP (1 |IPOPT_CONTROL)
     50 #define IPOPT_SEC (2 |IPOPT_CONTROL|IPOPT_COPY)
     51 #define IPOPT_LSRR (3 |IPOPT_CONTROL|IPOPT_COPY)
     52 #define IPOPT_TIMESTAMP (4 |IPOPT_MEASUREMENT)
     53 #define IPOPT_RR (7 |IPOPT_CONTROL)
     54 #define IPOPT_SID (8 |IPOPT_CONTROL|IPOPT_COPY)
     55 #define IPOPT_SSRR (9 |IPOPT_CONTROL|IPOPT_COPY)
     56 #define IPOPT_RA (20|IPOPT_CONTROL|IPOPT_COPY)
     57 
     58 #define IPVERSION 4
     59 #define MAXTTL 255
     60 #define IPDEFTTL 64
     61 
     62 #define IPOPT_OPTVAL 0
     63 #define IPOPT_OLEN 1
     64 #define IPOPT_OFFSET 2
     65 #define IPOPT_MINOFF 4
     66 #define MAX_IPOPTLEN 40
     67 #define IPOPT_NOP IPOPT_NOOP
     68 #define IPOPT_EOL IPOPT_END
     69 #define IPOPT_TS IPOPT_TIMESTAMP
     70 
     71 #define IPOPT_TS_TSONLY 0
     72 #define IPOPT_TS_TSANDADDR 1
     73 #define IPOPT_TS_PRESPEC 3
     74 
     75 struct iphdr {
     76 #ifdef __LITTLE_ENDIAN_BITFIELD
     77  __u8 ihl:4,
     78  version:4;
     79 #elif defined (__BIG_ENDIAN_BITFIELD)
     80  __u8 version:4,
     81  ihl:4;
     82 #else
     83 #error "Please fix <asm/byteorder.h>"
     84 #endif
     85  __u8 tos;
     86  __be16 tot_len;
     87  __be16 id;
     88  __be16 frag_off;
     89  __u8 ttl;
     90  __u8 protocol;
     91  __u16 check;
     92  __be32 saddr;
     93  __be32 daddr;
     94 
     95 };
     96 
     97 struct ip_auth_hdr {
     98  __u8 nexthdr;
     99  __u8 hdrlen;
    100  __u16 reserved;
    101  __u32 spi;
    102  __u32 seq_no;
    103  __u8 auth_data[0];
    104 };
    105 
    106 struct ip_esp_hdr {
    107  __u32 spi;
    108  __u32 seq_no;
    109  __u8 enc_data[0];
    110 };
    111 
    112 struct ip_comp_hdr {
    113  __u8 nexthdr;
    114  __u8 flags;
    115  __u16 cpi;
    116 };
    117 
    118 #endif
    119