1 /******************************************************************************
3 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19 ******************************************************************************/
23 /* SOL_IP socket options */
25 #define IPTOS_TOS_MASK 0x1E
26 #define IPTOS_TOS(tos) ((tos)&IPTOS_TOS_MASK)
27 #define IPTOS_LOWDELAY 0x10
28 #define IPTOS_THROUGHPUT 0x08
29 #define IPTOS_RELIABILITY 0x04
30 #define IPTOS_MINCOST 0x02
32 #define IPTOS_PREC_MASK 0xE0
33 #define IPTOS_PREC(tos) ((tos)&IPTOS_PREC_MASK)
34 #define IPTOS_PREC_NETCONTROL 0xe0
35 #define IPTOS_PREC_INTERNETCONTROL 0xc0
36 #define IPTOS_PREC_CRITIC_ECP 0xa0
37 #define IPTOS_PREC_FLASHOVERRIDE 0x80
38 #define IPTOS_PREC_FLASH 0x60
39 #define IPTOS_PREC_IMMEDIATE 0x40
40 #define IPTOS_PREC_PRIORITY 0x20
41 #define IPTOS_PREC_ROUTINE 0x00
45 #define IPOPT_COPY 0x80
46 #define IPOPT_CLASS_MASK 0x60
47 #define IPOPT_NUMBER_MASK 0x1f
49 #define IPOPT_COPIED(o) ((o)&IPOPT_COPY)
50 #define IPOPT_CLASS(o) ((o)&IPOPT_CLASS_MASK)
51 #define IPOPT_NUMBER(o) ((o)&IPOPT_NUMBER_MASK)
53 #define IPOPT_CONTROL 0x00
54 #define IPOPT_RESERVED1 0x20
55 #define IPOPT_MEASUREMENT 0x40
56 #define IPOPT_RESERVED2 0x60
58 #define IPOPT_END (0 |IPOPT_CONTROL)
59 #define IPOPT_NOOP (1 |IPOPT_CONTROL)
60 #define IPOPT_SEC (2 |IPOPT_CONTROL|IPOPT_COPY)
61 #define IPOPT_LSRR (3 |IPOPT_CONTROL|IPOPT_COPY)
62 #define IPOPT_TIMESTAMP (4 |IPOPT_MEASUREMENT)
63 #define IPOPT_RR (7 |IPOPT_CONTROL)
64 #define IPOPT_SID (8 |IPOPT_CONTROL|IPOPT_COPY)
65 #define IPOPT_SSRR (9 |IPOPT_CONTROL|IPOPT_COPY)
66 #define IPOPT_RA (20|IPOPT_CONTROL|IPOPT_COPY)
72 /* struct timestamp, struct route and MAX_ROUTES are removed.
74 REASONS: it is clear that nobody used them because:
75 - MAX_ROUTES value was wrong.
76 - "struct route" was wrong.
77 - "struct timestamp" had fatally misaligned bitfields and was completely unusable.
80 #define IPOPT_OPTVAL 0
82 #define IPOPT_OFFSET 2
83 #define IPOPT_MINOFF 4
84 #define MAX_IPOPTLEN 40
85 #define IPOPT_NOP IPOPT_NOOP
86 #define IPOPT_EOL IPOPT_END
87 #define IPOPT_TS IPOPT_TIMESTAMP
89 #define IPOPT_TS_TSONLY 0 /* timestamps only */
90 #define IPOPT_TS_TSANDADDR 1 /* timestamps and addresses */
91 #define IPOPT_TS_PRESPEC 3 /* specified modules only */
96 __u32 faddr; /* Saved first hop address */
101 unsigned char is_setbyuser:1, /* Set by setsockopt? */
102 is_data:1, /* Options in __data, rather than skb */
103 is_strictroute:1, /* Strict source route */
104 srr_is_hit:1, /* Packet destination addr was our one */
105 is_changed:1, /* IP checksum more not valid */
106 rr_needaddr:1, /* Need to record addr of outgoing dev */
107 ts_needtime:1, /* Need to record timestamp */
108 ts_needaddr:1; /* Need to record addr of outgoing dev */
109 unsigned char router_alert;
110 unsigned char __pad1;
111 unsigned char __pad2;
112 unsigned char __data[0];
115 #define optlength(opt) (sizeof(struct ip_options) + opt->optlen)
119 #if defined(__LITTLE_ENDIAN_BITFIELD)
122 #elif defined (__BIG_ENDIAN_BITFIELD)
126 #error "Please fix <asm/byteorder.h>"
137 /*The options start here. */
140 #endif /* _LINUX_IP_H */