[mirror_iproute2.git] / include / uapi / linux / in.h

/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  INET is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		Definitions of the Internet Protocol.
 *
 * Version:	@(#)in.h	1.0.1	04/21/93
 *
 * Authors:	Original taken from the GNU Project <netinet/in.h> file.
 *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 */
#ifndef _LINUX_IN_H
#define _LINUX_IN_H

#include <linux/types.h>
#include <linux/libc-compat.h>
#include <linux/socket.h>

#if __UAPI_DEF_IN_IPPROTO
/* Standard well-defined IP protocols.  */
enum {
  IPPROTO_IP = 0,		/* Dummy protocol for TCP		*/
#define IPPROTO_IP		IPPROTO_IP
  IPPROTO_ICMP = 1,		/* Internet Control Message Protocol	*/
#define IPPROTO_ICMP		IPPROTO_ICMP
  IPPROTO_IGMP = 2,		/* Internet Group Management Protocol	*/
#define IPPROTO_IGMP		IPPROTO_IGMP
  IPPROTO_IPIP = 4,		/* IPIP tunnels (older KA9Q tunnels use 94) */
#define IPPROTO_IPIP		IPPROTO_IPIP
  IPPROTO_TCP = 6,		/* Transmission Control Protocol	*/
#define IPPROTO_TCP		IPPROTO_TCP
  IPPROTO_EGP = 8,		/* Exterior Gateway Protocol		*/
#define IPPROTO_EGP		IPPROTO_EGP
  IPPROTO_PUP = 12,		/* PUP protocol				*/
#define IPPROTO_PUP		IPPROTO_PUP
  IPPROTO_UDP = 17,		/* User Datagram Protocol		*/
#define IPPROTO_UDP		IPPROTO_UDP
  IPPROTO_IDP = 22,		/* XNS IDP protocol			*/
#define IPPROTO_IDP		IPPROTO_IDP
  IPPROTO_TP = 29,		/* SO Transport Protocol Class 4	*/
#define IPPROTO_TP		IPPROTO_TP
  IPPROTO_DCCP = 33,		/* Datagram Congestion Control Protocol */
#define IPPROTO_DCCP		IPPROTO_DCCP
  IPPROTO_IPV6 = 41,		/* IPv6-in-IPv4 tunnelling		*/
#define IPPROTO_IPV6		IPPROTO_IPV6
  IPPROTO_RSVP = 46,		/* RSVP Protocol			*/
#define IPPROTO_RSVP		IPPROTO_RSVP
  IPPROTO_GRE = 47,		/* Cisco GRE tunnels (rfc 1701,1702)	*/
#define IPPROTO_GRE		IPPROTO_GRE
  IPPROTO_ESP = 50,		/* Encapsulation Security Payload protocol */
#define IPPROTO_ESP		IPPROTO_ESP
  IPPROTO_AH = 51,		/* Authentication Header protocol	*/
#define IPPROTO_AH		IPPROTO_AH
  IPPROTO_MTP = 92,		/* Multicast Transport Protocol		*/
#define IPPROTO_MTP		IPPROTO_MTP
  IPPROTO_BEETPH = 94,		/* IP option pseudo header for BEET	*/
#define IPPROTO_BEETPH		IPPROTO_BEETPH
  IPPROTO_ENCAP = 98,		/* Encapsulation Header			*/
#define IPPROTO_ENCAP		IPPROTO_ENCAP
  IPPROTO_PIM = 103,		/* Protocol Independent Multicast	*/
#define IPPROTO_PIM		IPPROTO_PIM
  IPPROTO_COMP = 108,		/* Compression Header Protocol		*/
#define IPPROTO_COMP		IPPROTO_COMP
  IPPROTO_SCTP = 132,		/* Stream Control Transport Protocol	*/
#define IPPROTO_SCTP		IPPROTO_SCTP
  IPPROTO_UDPLITE = 136,	/* UDP-Lite (RFC 3828)			*/
#define IPPROTO_UDPLITE		IPPROTO_UDPLITE
  IPPROTO_MPLS = 137,		/* MPLS in IP (RFC 4023)		*/
#define IPPROTO_MPLS		IPPROTO_MPLS
  IPPROTO_RAW = 255,		/* Raw IP packets			*/
#define IPPROTO_RAW		IPPROTO_RAW
  IPPROTO_MAX
};
#endif

#if __UAPI_DEF_IN_ADDR
/* Internet address. */
struct in_addr {
	__be32	s_addr;
};
#endif

#define IP_TOS		1
#define IP_TTL		2
#define IP_HDRINCL	3
#define IP_OPTIONS	4
#define IP_ROUTER_ALERT	5
#define IP_RECVOPTS	6
#define IP_RETOPTS	7
#define IP_PKTINFO	8
#define IP_PKTOPTIONS	9
#define IP_MTU_DISCOVER	10
#define IP_RECVERR	11
#define IP_RECVTTL	12
#define	IP_RECVTOS	13
#define IP_MTU		14
#define IP_FREEBIND	15
#define IP_IPSEC_POLICY	16
#define IP_XFRM_POLICY	17
#define IP_PASSSEC	18
#define IP_TRANSPARENT	19

/* BSD compatibility */
#define IP_RECVRETOPTS	IP_RETOPTS

/* TProxy original addresses */
#define IP_ORIGDSTADDR       20
#define IP_RECVORIGDSTADDR   IP_ORIGDSTADDR

#define IP_MINTTL       21
#define IP_NODEFRAG     22
#define IP_CHECKSUM	23
#define IP_BIND_ADDRESS_NO_PORT	24
#define IP_RECVFRAGSIZE	25

/* IP_MTU_DISCOVER values */
#define IP_PMTUDISC_DONT		0	/* Never send DF frames */
#define IP_PMTUDISC_WANT		1	/* Use per route hints	*/
#define IP_PMTUDISC_DO			2	/* Always DF		*/
#define IP_PMTUDISC_PROBE		3       /* Ignore dst pmtu      */
/* Always use interface mtu (ignores dst pmtu) but don't set DF flag.
 * Also incoming ICMP frag_needed notifications will be ignored on
 * this socket to prevent accepting spoofed ones.
 */
#define IP_PMTUDISC_INTERFACE		4
/* weaker version of IP_PMTUDISC_INTERFACE, which allos packets to get
 * fragmented if they exeed the interface mtu
 */
#define IP_PMTUDISC_OMIT		5

#define IP_MULTICAST_IF			32
#define IP_MULTICAST_TTL 		33
#define IP_MULTICAST_LOOP 		34
#define IP_ADD_MEMBERSHIP		35
#define IP_DROP_MEMBERSHIP		36
#define IP_UNBLOCK_SOURCE		37
#define IP_BLOCK_SOURCE			38
#define IP_ADD_SOURCE_MEMBERSHIP	39
#define IP_DROP_SOURCE_MEMBERSHIP	40
#define IP_MSFILTER			41
#define MCAST_JOIN_GROUP		42
#define MCAST_BLOCK_SOURCE		43
#define MCAST_UNBLOCK_SOURCE		44
#define MCAST_LEAVE_GROUP		45
#define MCAST_JOIN_SOURCE_GROUP		46
#define MCAST_LEAVE_SOURCE_GROUP	47
#define MCAST_MSFILTER			48
#define IP_MULTICAST_ALL		49
#define IP_UNICAST_IF			50

#define MCAST_EXCLUDE	0
#define MCAST_INCLUDE	1

/* These need to appear somewhere around here */
#define IP_DEFAULT_MULTICAST_TTL        1
#define IP_DEFAULT_MULTICAST_LOOP       1

/* Request struct for multicast socket ops */

#if __UAPI_DEF_IP_MREQ
struct ip_mreq  {
	struct in_addr imr_multiaddr;	/* IP multicast address of group */
	struct in_addr imr_interface;	/* local IP address of interface */
};

struct ip_mreqn {
	struct in_addr	imr_multiaddr;		/* IP multicast address of group */
	struct in_addr	imr_address;		/* local IP address of interface */
	int		imr_ifindex;		/* Interface index */
};

struct ip_mreq_source {
	__be32		imr_multiaddr;
	__be32		imr_interface;
	__be32		imr_sourceaddr;
};

struct ip_msfilter {
	__be32		imsf_multiaddr;
	__be32		imsf_interface;
	__u32		imsf_fmode;
	__u32		imsf_numsrc;
	__be32		imsf_slist[1];
};

#define IP_MSFILTER_SIZE(numsrc) \
	(sizeof(struct ip_msfilter) - sizeof(__u32) \
	+ (numsrc) * sizeof(__u32))

struct group_req {
	__u32				 gr_interface;	/* interface index */
	struct __kernel_sockaddr_storage gr_group;	/* group address */
};

struct group_source_req {
	__u32				 gsr_interface;	/* interface index */
	struct __kernel_sockaddr_storage gsr_group;	/* group address */
	struct __kernel_sockaddr_storage gsr_source;	/* source address */
};

struct group_filter {
	__u32				 gf_interface;	/* interface index */
	struct __kernel_sockaddr_storage gf_group;	/* multicast address */
	__u32				 gf_fmode;	/* filter mode */
	__u32				 gf_numsrc;	/* number of sources */
	struct __kernel_sockaddr_storage gf_slist[1];	/* interface index */
};

#define GROUP_FILTER_SIZE(numsrc) \
	(sizeof(struct group_filter) - sizeof(struct __kernel_sockaddr_storage) \
	+ (numsrc) * sizeof(struct __kernel_sockaddr_storage))
#endif

#if __UAPI_DEF_IN_PKTINFO
struct in_pktinfo {
	int		ipi_ifindex;
	struct in_addr	ipi_spec_dst;
	struct in_addr	ipi_addr;
};
#endif

/* Structure describing an Internet (IP) socket address. */
#if  __UAPI_DEF_SOCKADDR_IN
#define __SOCK_SIZE__	16		/* sizeof(struct sockaddr)	*/
struct sockaddr_in {
  __kernel_sa_family_t	sin_family;	/* Address family		*/
  __be16		sin_port;	/* Port number			*/
  struct in_addr	sin_addr;	/* Internet address		*/

  /* Pad to size of `struct sockaddr'. */
  unsigned char		__pad[__SOCK_SIZE__ - sizeof(short int) -
			sizeof(unsigned short int) - sizeof(struct in_addr)];
};
#define sin_zero	__pad		/* for BSD UNIX comp. -FvK	*/
#endif

#if __UAPI_DEF_IN_CLASS
/*
 * Definitions of the bits in an Internet address integer.
 * On subnets, host and network parts are found according
 * to the subnet mask, not these masks.
 */
#define	IN_CLASSA(a)		((((long int) (a)) & 0x80000000) == 0)
#define	IN_CLASSA_NET		0xff000000
#define	IN_CLASSA_NSHIFT	24
#define	IN_CLASSA_HOST		(0xffffffff & ~IN_CLASSA_NET)
#define	IN_CLASSA_MAX		128

#define	IN_CLASSB(a)		((((long int) (a)) & 0xc0000000) == 0x80000000)
#define	IN_CLASSB_NET		0xffff0000
#define	IN_CLASSB_NSHIFT	16
#define	IN_CLASSB_HOST		(0xffffffff & ~IN_CLASSB_NET)
#define	IN_CLASSB_MAX		65536

#define	IN_CLASSC(a)		((((long int) (a)) & 0xe0000000) == 0xc0000000)
#define	IN_CLASSC_NET		0xffffff00
#define	IN_CLASSC_NSHIFT	8
#define	IN_CLASSC_HOST		(0xffffffff & ~IN_CLASSC_NET)

#define	IN_CLASSD(a)		((((long int) (a)) & 0xf0000000) == 0xe0000000)
#define	IN_MULTICAST(a)		IN_CLASSD(a)
#define	IN_MULTICAST_NET	0xe0000000

#define	IN_BADCLASS(a)		(((long int) (a) ) == (long int)0xffffffff)
#define	IN_EXPERIMENTAL(a)	IN_BADCLASS((a))

#define	IN_CLASSE(a)		((((long int) (a)) & 0xf0000000) == 0xf0000000)
#define	IN_CLASSE_NET		0xffffffff
#define	IN_CLASSE_NSHIFT	0

/* Address to accept any incoming messages. */
#define	INADDR_ANY		((unsigned long int) 0x00000000)

/* Address to send to all hosts. */
#define	INADDR_BROADCAST	((unsigned long int) 0xffffffff)

/* Address indicating an error return. */
#define	INADDR_NONE		((unsigned long int) 0xffffffff)

/* Network number for local host loopback. */
#define	IN_LOOPBACKNET		127

/* Address to loopback in software to local host.  */
#define	INADDR_LOOPBACK		0x7f000001	/* 127.0.0.1   */
#define	IN_LOOPBACK(a)		((((long int) (a)) & 0xff000000) == 0x7f000000)

/* Defines for Multicast INADDR */
#define INADDR_UNSPEC_GROUP   	0xe0000000U	/* 224.0.0.0   */
#define INADDR_ALLHOSTS_GROUP 	0xe0000001U	/* 224.0.0.1   */
#define INADDR_ALLRTRS_GROUP    0xe0000002U	/* 224.0.0.2 */
#define INADDR_MAX_LOCAL_GROUP  0xe00000ffU	/* 224.0.0.255 */
#endif

/* <asm/byteorder.h> contains the htonl type stuff.. */
#include <asm/byteorder.h> 


#endif /* _LINUX_IN_H */
Commit	Line	Data
ba914908	1	/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
ff631c3a SH	2	/*
	3	* INET An implementation of the TCP/IP protocol suite for the LINUX
	4	* operating system. INET is implemented using the BSD Socket
	5	* interface as the means of communication with the user level.
	6	*
	7	* Definitions of the Internet Protocol.
	8	*
	9	* Version: @(#)in.h 1.0.1 04/21/93
	10	*
	11	* Authors: Original taken from the GNU Project <netinet/in.h> file.
	12	* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
	13	*
	14	* This program is free software; you can redistribute it and/or
	15	* modify it under the terms of the GNU General Public License
	16	* as published by the Free Software Foundation; either version
	17	* 2 of the License, or (at your option) any later version.
	18	*/
	19	#ifndef _LINUX_IN_H
	20	#define _LINUX_IN_H
	21
	22	#include <linux/types.h>
	23	#include <linux/libc-compat.h>
	24	#include <linux/socket.h>
	25
	26	#if __UAPI_DEF_IN_IPPROTO
	27	/* Standard well-defined IP protocols. */
	28	enum {
	29	IPPROTO_IP = 0, /* Dummy protocol for TCP */
	30	#define IPPROTO_IP IPPROTO_IP
	31	IPPROTO_ICMP = 1, /* Internet Control Message Protocol */
	32	#define IPPROTO_ICMP IPPROTO_ICMP
	33	IPPROTO_IGMP = 2, /* Internet Group Management Protocol */
	34	#define IPPROTO_IGMP IPPROTO_IGMP
	35	IPPROTO_IPIP = 4, /* IPIP tunnels (older KA9Q tunnels use 94) */
	36	#define IPPROTO_IPIP IPPROTO_IPIP
	37	IPPROTO_TCP = 6, /* Transmission Control Protocol */
	38	#define IPPROTO_TCP IPPROTO_TCP
	39	IPPROTO_EGP = 8, /* Exterior Gateway Protocol */
	40	#define IPPROTO_EGP IPPROTO_EGP
	41	IPPROTO_PUP = 12, /* PUP protocol */
	42	#define IPPROTO_PUP IPPROTO_PUP
	43	IPPROTO_UDP = 17, /* User Datagram Protocol */
	44	#define IPPROTO_UDP IPPROTO_UDP
	45	IPPROTO_IDP = 22, /* XNS IDP protocol */
	46	#define IPPROTO_IDP IPPROTO_IDP
	47	IPPROTO_TP = 29, /* SO Transport Protocol Class 4 */
	48	#define IPPROTO_TP IPPROTO_TP
	49	IPPROTO_DCCP = 33, /* Datagram Congestion Control Protocol */
	50	#define IPPROTO_DCCP IPPROTO_DCCP
	51	IPPROTO_IPV6 = 41, /* IPv6-in-IPv4 tunnelling */
	52	#define IPPROTO_IPV6 IPPROTO_IPV6
	53	IPPROTO_RSVP = 46, /* RSVP Protocol */
	54	#define IPPROTO_RSVP IPPROTO_RSVP
	55	IPPROTO_GRE = 47, /* Cisco GRE tunnels (rfc 1701,1702) */
	56	#define IPPROTO_GRE IPPROTO_GRE
	57	IPPROTO_ESP = 50, /* Encapsulation Security Payload protocol */
	58	#define IPPROTO_ESP IPPROTO_ESP
	59	IPPROTO_AH = 51, /* Authentication Header protocol */
	60	#define IPPROTO_AH IPPROTO_AH
	61	IPPROTO_MTP = 92, /* Multicast Transport Protocol */
	62	#define IPPROTO_MTP IPPROTO_MTP
	63	IPPROTO_BEETPH = 94, /* IP option pseudo header for BEET */
	64	#define IPPROTO_BEETPH IPPROTO_BEETPH
	65	IPPROTO_ENCAP = 98, /* Encapsulation Header */
66	#define IPPROTO_ENCAP IPPROTO_ENCAP
67	IPPROTO_PIM = 103, /* Protocol Independent Multicast */
68	#define IPPROTO_PIM IPPROTO_PIM
69	IPPROTO_COMP = 108, /* Compression Header Protocol */
70	#define IPPROTO_COMP IPPROTO_COMP
71	IPPROTO_SCTP = 132, /* Stream Control Transport Protocol */
72	#define IPPROTO_SCTP IPPROTO_SCTP
73	IPPROTO_UDPLITE = 136, /* UDP-Lite (RFC 3828) */
74	#define IPPROTO_UDPLITE IPPROTO_UDPLITE
75	IPPROTO_MPLS = 137, /* MPLS in IP (RFC 4023) */
76	#define IPPROTO_MPLS IPPROTO_MPLS
77	IPPROTO_RAW = 255, /* Raw IP packets */
78	#define IPPROTO_RAW IPPROTO_RAW
79	IPPROTO_MAX
80	};
81	#endif
82
83	#if __UAPI_DEF_IN_ADDR
84	/* Internet address. */
85	struct in_addr {
86	__be32 s_addr;
87	};
88	#endif
89
90	#define IP_TOS 1
91	#define IP_TTL 2
92	#define IP_HDRINCL 3
93	#define IP_OPTIONS 4
94	#define IP_ROUTER_ALERT 5
95	#define IP_RECVOPTS 6
96	#define IP_RETOPTS 7
97	#define IP_PKTINFO 8
98	#define IP_PKTOPTIONS 9
99	#define IP_MTU_DISCOVER 10
100	#define IP_RECVERR 11
101	#define IP_RECVTTL 12
102	#define IP_RECVTOS 13
103	#define IP_MTU 14
104	#define IP_FREEBIND 15
105	#define IP_IPSEC_POLICY 16
106	#define IP_XFRM_POLICY 17
107	#define IP_PASSSEC 18
108	#define IP_TRANSPARENT 19
109
110	/* BSD compatibility */
111	#define IP_RECVRETOPTS IP_RETOPTS
112
113	/* TProxy original addresses */
114	#define IP_ORIGDSTADDR 20
115	#define IP_RECVORIGDSTADDR IP_ORIGDSTADDR
116
117	#define IP_MINTTL 21
118	#define IP_NODEFRAG 22
119	#define IP_CHECKSUM 23
120	#define IP_BIND_ADDRESS_NO_PORT 24
1a97748b	121	#define IP_RECVFRAGSIZE 25
ff631c3a SH	122
	123	/* IP_MTU_DISCOVER values */
	124	#define IP_PMTUDISC_DONT 0 /* Never send DF frames */
	125	#define IP_PMTUDISC_WANT 1 /* Use per route hints */
	126	#define IP_PMTUDISC_DO 2 /* Always DF */
	127	#define IP_PMTUDISC_PROBE 3 /* Ignore dst pmtu */
	128	/* Always use interface mtu (ignores dst pmtu) but don't set DF flag.
	129	* Also incoming ICMP frag_needed notifications will be ignored on
	130	* this socket to prevent accepting spoofed ones.
	131	*/
	132	#define IP_PMTUDISC_INTERFACE 4
	133	/* weaker version of IP_PMTUDISC_INTERFACE, which allos packets to get
	134	* fragmented if they exeed the interface mtu
	135	*/
	136	#define IP_PMTUDISC_OMIT 5
	137
	138	#define IP_MULTICAST_IF 32
	139	#define IP_MULTICAST_TTL 33
	140	#define IP_MULTICAST_LOOP 34
	141	#define IP_ADD_MEMBERSHIP 35
	142	#define IP_DROP_MEMBERSHIP 36
	143	#define IP_UNBLOCK_SOURCE 37
	144	#define IP_BLOCK_SOURCE 38
	145	#define IP_ADD_SOURCE_MEMBERSHIP 39
	146	#define IP_DROP_SOURCE_MEMBERSHIP 40
	147	#define IP_MSFILTER 41
	148	#define MCAST_JOIN_GROUP 42
	149	#define MCAST_BLOCK_SOURCE 43
	150	#define MCAST_UNBLOCK_SOURCE 44
	151	#define MCAST_LEAVE_GROUP 45
	152	#define MCAST_JOIN_SOURCE_GROUP 46
	153	#define MCAST_LEAVE_SOURCE_GROUP 47
	154	#define MCAST_MSFILTER 48
	155	#define IP_MULTICAST_ALL 49
	156	#define IP_UNICAST_IF 50
	157
	158	#define MCAST_EXCLUDE 0
	159	#define MCAST_INCLUDE 1
	160
	161	/* These need to appear somewhere around here */
	162	#define IP_DEFAULT_MULTICAST_TTL 1
	163	#define IP_DEFAULT_MULTICAST_LOOP 1
	164
	165	/* Request struct for multicast socket ops */
	166
	167	#if __UAPI_DEF_IP_MREQ
	168	struct ip_mreq {
	169	struct in_addr imr_multiaddr; /* IP multicast address of group */
	170	struct in_addr imr_interface; /* local IP address of interface */
	171	};
	172
	173	struct ip_mreqn {
	174	struct in_addr imr_multiaddr; /* IP multicast address of group */
	175	struct in_addr imr_address; /* local IP address of interface */
	176	int imr_ifindex; /* Interface index */
	177	};
	178
	179	struct ip_mreq_source {
	180	__be32 imr_multiaddr;
	181	__be32 imr_interface;
	182	__be32 imr_sourceaddr;
	183	};
	184
	185	struct ip_msfilter {
186	__be32 imsf_multiaddr;
187	__be32 imsf_interface;
188	__u32 imsf_fmode;
189	__u32 imsf_numsrc;
190	__be32 imsf_slist[1];
191	};
192
193	#define IP_MSFILTER_SIZE(numsrc) \
194	(sizeof(struct ip_msfilter) - sizeof(__u32) \
195	+ (numsrc) * sizeof(__u32))
196
197	struct group_req {
198	__u32 gr_interface; /* interface index */
199	struct __kernel_sockaddr_storage gr_group; /* group address */
200	};
201
202	struct group_source_req {
203	__u32 gsr_interface; /* interface index */
204	struct __kernel_sockaddr_storage gsr_group; /* group address */
205	struct __kernel_sockaddr_storage gsr_source; /* source address */
206	};
207
208	struct group_filter {
209	__u32 gf_interface; /* interface index */
210	struct __kernel_sockaddr_storage gf_group; /* multicast address */
211	__u32 gf_fmode; /* filter mode */
212	__u32 gf_numsrc; /* number of sources */
213	struct __kernel_sockaddr_storage gf_slist[1]; /* interface index */
214	};
215
216	#define GROUP_FILTER_SIZE(numsrc) \
217	(sizeof(struct group_filter) - sizeof(struct __kernel_sockaddr_storage) \
218	+ (numsrc) * sizeof(struct __kernel_sockaddr_storage))
219	#endif
220
221	#if __UAPI_DEF_IN_PKTINFO
222	struct in_pktinfo {
223	int ipi_ifindex;
224	struct in_addr ipi_spec_dst;
225	struct in_addr ipi_addr;
226	};
227	#endif
228
229	/* Structure describing an Internet (IP) socket address. */
230	#if __UAPI_DEF_SOCKADDR_IN
231	#define __SOCK_SIZE__ 16 /* sizeof(struct sockaddr) */
232	struct sockaddr_in {
233	__kernel_sa_family_t sin_family; /* Address family */
234	__be16 sin_port; /* Port number */
235	struct in_addr sin_addr; /* Internet address */
236
237	/* Pad to size of `struct sockaddr'. */
238	unsigned char __pad[__SOCK_SIZE__ - sizeof(short int) -
239	sizeof(unsigned short int) - sizeof(struct in_addr)];
240	};
241	#define sin_zero __pad /* for BSD UNIX comp. -FvK */
242	#endif
243
244	#if __UAPI_DEF_IN_CLASS
245	/*
246	* Definitions of the bits in an Internet address integer.
247	* On subnets, host and network parts are found according
248	* to the subnet mask, not these masks.
249	*/
250	#define IN_CLASSA(a) ((((long int) (a)) & 0x80000000) == 0)
251	#define IN_CLASSA_NET 0xff000000
252	#define IN_CLASSA_NSHIFT 24
253	#define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
254	#define IN_CLASSA_MAX 128
255
256	#define IN_CLASSB(a) ((((long int) (a)) & 0xc0000000) == 0x80000000)
257	#define IN_CLASSB_NET 0xffff0000
258	#define IN_CLASSB_NSHIFT 16
259	#define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
260	#define IN_CLASSB_MAX 65536
261
262	#define IN_CLASSC(a) ((((long int) (a)) & 0xe0000000) == 0xc0000000)
263	#define IN_CLASSC_NET 0xffffff00
264	#define IN_CLASSC_NSHIFT 8
265	#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
266
267	#define IN_CLASSD(a) ((((long int) (a)) & 0xf0000000) == 0xe0000000)
268	#define IN_MULTICAST(a) IN_CLASSD(a)
ef7f9fae	269	#define IN_MULTICAST_NET 0xe0000000
ff631c3a	270
3bc2dc76	271	#define IN_BADCLASS(a) (((long int) (a) ) == (long int)0xffffffff)
ef7f9fae SH	272	#define IN_EXPERIMENTAL(a) IN_BADCLASS((a))
	273
	274	#define IN_CLASSE(a) ((((long int) (a)) & 0xf0000000) == 0xf0000000)
	275	#define IN_CLASSE_NET 0xffffffff
	276	#define IN_CLASSE_NSHIFT 0
ff631c3a SH	277
	278	/* Address to accept any incoming messages. */
	279	#define INADDR_ANY ((unsigned long int) 0x00000000)
	280
	281	/* Address to send to all hosts. */
	282	#define INADDR_BROADCAST ((unsigned long int) 0xffffffff)
	283
	284	/* Address indicating an error return. */
	285	#define INADDR_NONE ((unsigned long int) 0xffffffff)
	286
	287	/* Network number for local host loopback. */
	288	#define IN_LOOPBACKNET 127
	289
	290	/* Address to loopback in software to local host. */
	291	#define INADDR_LOOPBACK 0x7f000001 /* 127.0.0.1 */
	292	#define IN_LOOPBACK(a) ((((long int) (a)) & 0xff000000) == 0x7f000000)
	293
	294	/* Defines for Multicast INADDR */
	295	#define INADDR_UNSPEC_GROUP 0xe0000000U /* 224.0.0.0 */
	296	#define INADDR_ALLHOSTS_GROUP 0xe0000001U /* 224.0.0.1 */
	297	#define INADDR_ALLRTRS_GROUP 0xe0000002U /* 224.0.0.2 */
	298	#define INADDR_MAX_LOCAL_GROUP 0xe00000ffU /* 224.0.0.255 */
	299	#endif
	300
	301	/* <asm/byteorder.h> contains the htonl type stuff.. */
	302	#include <asm/byteorder.h>
	303
	304
	305	#endif /* _LINUX_IN_H */