--- /dev/null
+/******************************************************************************
+ *
+ * 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 */
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