--- /dev/null
+/* Copyright (C) 1991-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef __NETINET_IP_H
+#define __NETINET_IP_H 1
+
+#include <features.h>
+#include <sys/types.h>
+
+#include <netinet/in.h>
+
+__BEGIN_DECLS
+
+struct timestamp
+ {
+ uint8_t len;
+ uint8_t ptr;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+ unsigned int flags:4;
+ unsigned int overflow:4;
+#elif __BYTE_ORDER == __BIG_ENDIAN
+ unsigned int overflow:4;
+ unsigned int flags:4;
+#else
+# error "Please fix <bits/endian.h>"
+#endif
+ uint32_t data[9];
+ };
+
+struct iphdr
+ {
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+ unsigned int ihl:4;
+ unsigned int version:4;
+#elif __BYTE_ORDER == __BIG_ENDIAN
+ unsigned int version:4;
+ unsigned int ihl:4;
+#else
+# error "Please fix <bits/endian.h>"
+#endif
+ uint8_t tos;
+ uint16_t tot_len;
+ uint16_t id;
+ uint16_t frag_off;
+ uint8_t ttl;
+ uint8_t protocol;
+ uint16_t check;
+ uint32_t saddr;
+ uint32_t daddr;
+ /*The options start here. */
+ };
+
+#ifdef __USE_MISC
+/*
+ * Copyright (c) 1982, 1986, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)ip.h 8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * Definitions for internet protocol version 4.
+ * Per RFC 791, September 1981.
+ */
+
+/*
+ * Structure of an internet header, naked of options.
+ */
+struct ip
+ {
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+ unsigned int ip_hl:4; /* header length */
+ unsigned int ip_v:4; /* version */
+#endif
+#if __BYTE_ORDER == __BIG_ENDIAN
+ unsigned int ip_v:4; /* version */
+ unsigned int ip_hl:4; /* header length */
+#endif
+ uint8_t ip_tos; /* type of service */
+ unsigned short ip_len; /* total length */
+ unsigned short ip_id; /* identification */
+ unsigned short ip_off; /* fragment offset field */
+#define IP_RF 0x8000 /* reserved fragment flag */
+#define IP_DF 0x4000 /* dont fragment flag */
+#define IP_MF 0x2000 /* more fragments flag */
+#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
+ uint8_t ip_ttl; /* time to live */
+ uint8_t ip_p; /* protocol */
+ unsigned short ip_sum; /* checksum */
+ struct in_addr ip_src, ip_dst; /* source and dest address */
+ };
+
+/*
+ * Time stamp option structure.
+ */
+struct ip_timestamp
+ {
+ uint8_t ipt_code; /* IPOPT_TS */
+ uint8_t ipt_len; /* size of structure (variable) */
+ uint8_t ipt_ptr; /* index of current entry */
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+ unsigned int ipt_flg:4; /* flags, see below */
+ unsigned int ipt_oflw:4; /* overflow counter */
+#endif
+#if __BYTE_ORDER == __BIG_ENDIAN
+ unsigned int ipt_oflw:4; /* overflow counter */
+ unsigned int ipt_flg:4; /* flags, see below */
+#endif
+ uint32_t data[9];
+ };
+#endif /* __USE_MISC */
+
+#define IPVERSION 4 /* IP version number */
+#define IP_MAXPACKET 65535 /* maximum packet size */
+
+/*
+ * Definitions for Explicit Congestion Notification (ECN)
+ *
+ * Taken from RFC-3168, Section 5.
+ */
+
+#define IPTOS_ECN_MASK 0x03
+#define IPTOS_ECN(x) ((x) & IPTOS_ECN_MASK)
+#define IPTOS_ECN_NOT_ECT 0x00
+#define IPTOS_ECN_ECT1 0x01
+#define IPTOS_ECN_ECT0 0x02
+#define IPTOS_ECN_CE 0x03
+
+/*
+ * Definitions for IP differentiated services code points (DSCP)
+ *
+ * Taken from RFC-2597, Section 6 and RFC-2598, Section 2.3.
+ */
+
+#define IPTOS_DSCP_MASK 0xfc
+#define IPTOS_DSCP(x) ((x) & IPTOS_DSCP_MASK)
+#define IPTOS_DSCP_AF11 0x28
+#define IPTOS_DSCP_AF12 0x30
+#define IPTOS_DSCP_AF13 0x38
+#define IPTOS_DSCP_AF21 0x48
+#define IPTOS_DSCP_AF22 0x50
+#define IPTOS_DSCP_AF23 0x58
+#define IPTOS_DSCP_AF31 0x68
+#define IPTOS_DSCP_AF32 0x70
+#define IPTOS_DSCP_AF33 0x78
+#define IPTOS_DSCP_AF41 0x88
+#define IPTOS_DSCP_AF42 0x90
+#define IPTOS_DSCP_AF43 0x98
+#define IPTOS_DSCP_EF 0xb8
+
+/*
+ * In RFC 2474, Section 4.2.2.1, the Class Selector Codepoints subsume
+ * the old ToS Precedence values.
+ */
+
+#define IPTOS_CLASS_MASK 0xe0
+#define IPTOS_CLASS(class) ((class) & IPTOS_CLASS_MASK)
+#define IPTOS_CLASS_CS0 0x00
+#define IPTOS_CLASS_CS1 0x20
+#define IPTOS_CLASS_CS2 0x40
+#define IPTOS_CLASS_CS3 0x60
+#define IPTOS_CLASS_CS4 0x80
+#define IPTOS_CLASS_CS5 0xa0
+#define IPTOS_CLASS_CS6 0xc0
+#define IPTOS_CLASS_CS7 0xe0
+
+#define IPTOS_CLASS_DEFAULT IPTOS_CLASS_CS0
+
+/*
+ * Definitions for IP type of service (ip_tos) [deprecated; use DSCP
+ * and CS definitions above instead.]
+ */
+#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_LOWCOST 0x02
+#define IPTOS_MINCOST IPTOS_LOWCOST
+
+/*
+ * Definitions for IP precedence (also in ip_tos) [also deprecated.]
+ */
+#define IPTOS_PREC_MASK IPTOS_CLASS_MASK
+#define IPTOS_PREC(tos) IPTOS_CLASS(tos)
+#define IPTOS_PREC_NETCONTROL IPTOS_CLASS_CS7
+#define IPTOS_PREC_INTERNETCONTROL IPTOS_CLASS_CS6
+#define IPTOS_PREC_CRITIC_ECP IPTOS_CLASS_CS5
+#define IPTOS_PREC_FLASHOVERRIDE IPTOS_CLASS_CS4
+#define IPTOS_PREC_FLASH IPTOS_CLASS_CS3
+#define IPTOS_PREC_IMMEDIATE IPTOS_CLASS_CS2
+#define IPTOS_PREC_PRIORITY IPTOS_CLASS_CS1
+#define IPTOS_PREC_ROUTINE IPTOS_CLASS_CS0
+
+/*
+ * Definitions for 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_DEBMEAS 0x40
+#define IPOPT_MEASUREMENT IPOPT_DEBMEAS
+#define IPOPT_RESERVED2 0x60
+
+#define IPOPT_EOL 0 /* end of option list */
+#define IPOPT_END IPOPT_EOL
+#define IPOPT_NOP 1 /* no operation */
+#define IPOPT_NOOP IPOPT_NOP
+
+#define IPOPT_RR 7 /* record packet route */
+#define IPOPT_TS 68 /* timestamp */
+#define IPOPT_TIMESTAMP IPOPT_TS
+#define IPOPT_SECURITY 130 /* provide s,c,h,tcc */
+#define IPOPT_SEC IPOPT_SECURITY
+#define IPOPT_LSRR 131 /* loose source route */
+#define IPOPT_SATID 136 /* satnet id */
+#define IPOPT_SID IPOPT_SATID
+#define IPOPT_SSRR 137 /* strict source route */
+#define IPOPT_RA 148 /* router alert */
+
+/*
+ * Offsets to fields in options other than EOL and NOP.
+ */
+#define IPOPT_OPTVAL 0 /* option ID */
+#define IPOPT_OLEN 1 /* option length */
+#define IPOPT_OFFSET 2 /* offset within option */
+#define IPOPT_MINOFF 4 /* min value of above */
+
+#define MAX_IPOPTLEN 40
+
+/* flag bits for ipt_flg */
+#define IPOPT_TS_TSONLY 0 /* timestamps only */
+#define IPOPT_TS_TSANDADDR 1 /* timestamps and addresses */
+#define IPOPT_TS_PRESPEC 3 /* specified modules only */
+
+/* bits for security (not byte swapped) */
+#define IPOPT_SECUR_UNCLASS 0x0000
+#define IPOPT_SECUR_CONFID 0xf135
+#define IPOPT_SECUR_EFTO 0x789a
+#define IPOPT_SECUR_MMMM 0xbc4d
+#define IPOPT_SECUR_RESTR 0xaf13
+#define IPOPT_SECUR_SECRET 0xd788
+#define IPOPT_SECUR_TOPSECRET 0x6bc5
+
+/*
+ * Internet implementation parameters.
+ */
+#define MAXTTL 255 /* maximum time to live (seconds) */
+#define IPDEFTTL 64 /* default ttl, from RFC 1340 */
+#define IPFRAGTTL 60 /* time to live for frags, slowhz */
+#define IPTTLDEC 1 /* subtracted when forwarding */
+
+#define IP_MSS 576 /* default maximum segment size */
+
+__END_DECLS
+
+#endif /* netinet/ip.h */
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