[mirror_ubuntu-bionic-kernel.git] / include / linux / socket.h

#ifndef _LINUX_SOCKET_H
#define _LINUX_SOCKET_H

/*
 * Desired design of maximum size and alignment (see RFC2553)
 */
#define _K_SS_MAXSIZE	128	/* Implementation specific max size */
#define _K_SS_ALIGNSIZE	(__alignof__ (struct sockaddr *))
				/* Implementation specific desired alignment */

struct __kernel_sockaddr_storage {
	unsigned short	ss_family;		/* address family */
	/* Following field(s) are implementation specific */
	char		__data[_K_SS_MAXSIZE - sizeof(unsigned short)];
				/* space to achieve desired size, */
				/* _SS_MAXSIZE value minus size of ss_family */
} __attribute__ ((aligned(_K_SS_ALIGNSIZE)));	/* force desired alignment */

#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)

#include <linux/config.h>		/* for CONFIG_COMPAT */
#include <linux/linkage.h>
#include <asm/socket.h>			/* arch-dependent defines	*/
#include <linux/sockios.h>		/* the SIOCxxx I/O controls	*/
#include <linux/uio.h>			/* iovec support		*/
#include <linux/types.h>		/* pid_t			*/
#include <linux/compiler.h>		/* __user			*/

extern int sysctl_somaxconn;
extern void sock_init(void);
#ifdef CONFIG_PROC_FS
struct seq_file;
extern void socket_seq_show(struct seq_file *seq);
#endif

typedef unsigned short	sa_family_t;

/*
 *	1003.1g requires sa_family_t and that sa_data is char.
 */
 
struct sockaddr {
	sa_family_t	sa_family;	/* address family, AF_xxx	*/
	char		sa_data[14];	/* 14 bytes of protocol address	*/
};

struct linger {
	int		l_onoff;	/* Linger active		*/
	int		l_linger;	/* How long to linger for	*/
};

#define sockaddr_storage __kernel_sockaddr_storage

/*
 *	As we do 4.4BSD message passing we use a 4.4BSD message passing
 *	system, not 4.3. Thus msg_accrights(len) are now missing. They
 *	belong in an obscure libc emulation or the bin.
 */
 
struct msghdr {
	void	*	msg_name;	/* Socket name			*/
	int		msg_namelen;	/* Length of name		*/
	struct iovec *	msg_iov;	/* Data blocks			*/
	__kernel_size_t	msg_iovlen;	/* Number of blocks		*/
	void 	*	msg_control;	/* Per protocol magic (eg BSD file descriptor passing) */
	__kernel_size_t	msg_controllen;	/* Length of cmsg list */
	unsigned	msg_flags;
};

/*
 *	POSIX 1003.1g - ancillary data object information
 *	Ancillary data consits of a sequence of pairs of
 *	(cmsghdr, cmsg_data[])
 */

struct cmsghdr {
	__kernel_size_t	cmsg_len;	/* data byte count, including hdr */
        int		cmsg_level;	/* originating protocol */
        int		cmsg_type;	/* protocol-specific type */
};

/*
 *	Ancilliary data object information MACROS
 *	Table 5-14 of POSIX 1003.1g
 */

#define __CMSG_NXTHDR(ctl, len, cmsg) __cmsg_nxthdr((ctl),(len),(cmsg))
#define CMSG_NXTHDR(mhdr, cmsg) cmsg_nxthdr((mhdr), (cmsg))

#define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) )

#define CMSG_DATA(cmsg)	((void *)((char *)(cmsg) + CMSG_ALIGN(sizeof(struct cmsghdr))))
#define CMSG_SPACE(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(len))
#define CMSG_LEN(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))

#define __CMSG_FIRSTHDR(ctl,len) ((len) >= sizeof(struct cmsghdr) ? \
				  (struct cmsghdr *)(ctl) : \
				  (struct cmsghdr *)NULL)
#define CMSG_FIRSTHDR(msg)	__CMSG_FIRSTHDR((msg)->msg_control, (msg)->msg_controllen)
#define CMSG_OK(mhdr, cmsg) ((cmsg)->cmsg_len >= sizeof(struct cmsghdr) && \
			     (cmsg)->cmsg_len <= (unsigned long) \
			     ((mhdr)->msg_controllen - \
			      ((char *)(cmsg) - (char *)(mhdr)->msg_control)))

/*
 *	This mess will go away with glibc
 */
 
#ifdef __KERNEL__
#define __KINLINE static inline
#elif  defined(__GNUC__) 
#define __KINLINE static __inline__
#elif defined(__cplusplus)
#define __KINLINE static inline
#else
#define __KINLINE static
#endif


/*
 *	Get the next cmsg header
 *
 *	PLEASE, do not touch this function. If you think, that it is
 *	incorrect, grep kernel sources and think about consequences
 *	before trying to improve it.
 *
 *	Now it always returns valid, not truncated ancillary object
 *	HEADER. But caller still MUST check, that cmsg->cmsg_len is
 *	inside range, given by msg->msg_controllen before using
 *	ancillary object DATA.				--ANK (980731)
 */
 
__KINLINE struct cmsghdr * __cmsg_nxthdr(void *__ctl, __kernel_size_t __size,
					       struct cmsghdr *__cmsg)
{
	struct cmsghdr * __ptr;

	__ptr = (struct cmsghdr*)(((unsigned char *) __cmsg) +  CMSG_ALIGN(__cmsg->cmsg_len));
	if ((unsigned long)((char*)(__ptr+1) - (char *) __ctl) > __size)
		return (struct cmsghdr *)0;

	return __ptr;
}

__KINLINE struct cmsghdr * cmsg_nxthdr (struct msghdr *__msg, struct cmsghdr *__cmsg)
{
	return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg);
}

/* "Socket"-level control message types: */

#define	SCM_RIGHTS	0x01		/* rw: access rights (array of int) */
#define SCM_CREDENTIALS 0x02		/* rw: struct ucred		*/

struct ucred {
	__u32	pid;
	__u32	uid;
	__u32	gid;
};

/* Supported address families. */
#define AF_UNSPEC	0
#define AF_UNIX		1	/* Unix domain sockets 		*/
#define AF_LOCAL	1	/* POSIX name for AF_UNIX	*/
#define AF_INET		2	/* Internet IP Protocol 	*/
#define AF_AX25		3	/* Amateur Radio AX.25 		*/
#define AF_IPX		4	/* Novell IPX 			*/
#define AF_APPLETALK	5	/* AppleTalk DDP 		*/
#define AF_NETROM	6	/* Amateur Radio NET/ROM 	*/
#define AF_BRIDGE	7	/* Multiprotocol bridge 	*/
#define AF_ATMPVC	8	/* ATM PVCs			*/
#define AF_X25		9	/* Reserved for X.25 project 	*/
#define AF_INET6	10	/* IP version 6			*/
#define AF_ROSE		11	/* Amateur Radio X.25 PLP	*/
#define AF_DECnet	12	/* Reserved for DECnet project	*/
#define AF_NETBEUI	13	/* Reserved for 802.2LLC project*/
#define AF_SECURITY	14	/* Security callback pseudo AF */
#define AF_KEY		15      /* PF_KEY key management API */
#define AF_NETLINK	16
#define AF_ROUTE	AF_NETLINK /* Alias to emulate 4.4BSD */
#define AF_PACKET	17	/* Packet family		*/
#define AF_ASH		18	/* Ash				*/
#define AF_ECONET	19	/* Acorn Econet			*/
#define AF_ATMSVC	20	/* ATM SVCs			*/
#define AF_SNA		22	/* Linux SNA Project (nutters!) */
#define AF_IRDA		23	/* IRDA sockets			*/
#define AF_PPPOX	24	/* PPPoX sockets		*/
#define AF_WANPIPE	25	/* Wanpipe API Sockets */
#define AF_LLC		26	/* Linux LLC			*/
#define AF_BLUETOOTH	31	/* Bluetooth sockets 		*/
#define AF_MAX		32	/* For now.. */

/* Protocol families, same as address families. */
#define PF_UNSPEC	AF_UNSPEC
#define PF_UNIX		AF_UNIX
#define PF_LOCAL	AF_LOCAL
#define PF_INET		AF_INET
#define PF_AX25		AF_AX25
#define PF_IPX		AF_IPX
#define PF_APPLETALK	AF_APPLETALK
#define	PF_NETROM	AF_NETROM
#define PF_BRIDGE	AF_BRIDGE
#define PF_ATMPVC	AF_ATMPVC
#define PF_X25		AF_X25
#define PF_INET6	AF_INET6
#define PF_ROSE		AF_ROSE
#define PF_DECnet	AF_DECnet
#define PF_NETBEUI	AF_NETBEUI
#define PF_SECURITY	AF_SECURITY
#define PF_KEY		AF_KEY
#define PF_NETLINK	AF_NETLINK
#define PF_ROUTE	AF_ROUTE
#define PF_PACKET	AF_PACKET
#define PF_ASH		AF_ASH
#define PF_ECONET	AF_ECONET
#define PF_ATMSVC	AF_ATMSVC
#define PF_SNA		AF_SNA
#define PF_IRDA		AF_IRDA
#define PF_PPPOX	AF_PPPOX
#define PF_WANPIPE	AF_WANPIPE
#define PF_LLC		AF_LLC
#define PF_BLUETOOTH	AF_BLUETOOTH
#define PF_MAX		AF_MAX

/* Maximum queue length specifiable by listen.  */
#define SOMAXCONN	128

/* Flags we can use with send/ and recv. 
   Added those for 1003.1g not all are supported yet
 */
 
#define MSG_OOB		1
#define MSG_PEEK	2
#define MSG_DONTROUTE	4
#define MSG_TRYHARD     4       /* Synonym for MSG_DONTROUTE for DECnet */
#define MSG_CTRUNC	8
#define MSG_PROBE	0x10	/* Do not send. Only probe path f.e. for MTU */
#define MSG_TRUNC	0x20
#define MSG_DONTWAIT	0x40	/* Nonblocking io		 */
#define MSG_EOR         0x80	/* End of record */
#define MSG_WAITALL	0x100	/* Wait for a full request */
#define MSG_FIN         0x200
#define MSG_SYN		0x400
#define MSG_CONFIRM	0x800	/* Confirm path validity */
#define MSG_RST		0x1000
#define MSG_ERRQUEUE	0x2000	/* Fetch message from error queue */
#define MSG_NOSIGNAL	0x4000	/* Do not generate SIGPIPE */
#define MSG_MORE	0x8000	/* Sender will send more */

#define MSG_EOF         MSG_FIN

#if defined(CONFIG_COMPAT)
#define MSG_CMSG_COMPAT	0x80000000	/* This message needs 32 bit fixups */
#else
#define MSG_CMSG_COMPAT	0		/* We never have 32 bit fixups */
#endif


/* Setsockoptions(2) level. Thanks to BSD these must match IPPROTO_xxx */
#define SOL_IP		0
/* #define SOL_ICMP	1	No-no-no! Due to Linux :-) we cannot use SOL_ICMP=1 */
#define SOL_TCP		6
#define SOL_UDP		17
#define SOL_IPV6	41
#define SOL_ICMPV6	58
#define SOL_SCTP	132
#define SOL_RAW		255
#define SOL_IPX		256
#define SOL_AX25	257
#define SOL_ATALK	258
#define SOL_NETROM	259
#define SOL_ROSE	260
#define SOL_DECNET	261
#define	SOL_X25		262
#define SOL_PACKET	263
#define SOL_ATM		264	/* ATM layer (cell level) */
#define SOL_AAL		265	/* ATM Adaption Layer (packet level) */
#define SOL_IRDA        266
#define SOL_NETBEUI	267
#define SOL_LLC		268
#define SOL_DCCP	269
#define SOL_NETLINK	270

/* IPX options */
#define IPX_TYPE	1

#ifdef __KERNEL__
extern int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len);
extern int memcpy_fromiovecend(unsigned char *kdata, struct iovec *iov, 
				int offset, int len);
extern int csum_partial_copy_fromiovecend(unsigned char *kdata, 
					  struct iovec *iov, 
					  int offset, 
					  unsigned int len, int *csump);

extern int verify_iovec(struct msghdr *m, struct iovec *iov, char *address, int mode);
extern int memcpy_toiovec(struct iovec *v, unsigned char *kdata, int len);
extern int move_addr_to_user(void *kaddr, int klen, void __user *uaddr, int __user *ulen);
extern int move_addr_to_kernel(void __user *uaddr, int ulen, void *kaddr);
extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);

#endif
#endif /* not kernel and not glibc */
#endif /* _LINUX_SOCKET_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_SOCKET_H
	2	#define _LINUX_SOCKET_H
	3
	4	/*
	5	* Desired design of maximum size and alignment (see RFC2553)
	6	*/
	7	#define _K_SS_MAXSIZE 128 /* Implementation specific max size */
	8	#define _K_SS_ALIGNSIZE (__alignof__ (struct sockaddr *))
	9	/* Implementation specific desired alignment */
	10
	11	struct __kernel_sockaddr_storage {
	12	unsigned short ss_family; /* address family */
	13	/* Following field(s) are implementation specific */
	14	char __data[_K_SS_MAXSIZE - sizeof(unsigned short)];
	15	/* space to achieve desired size, */
	16	/* _SS_MAXSIZE value minus size of ss_family */
	17	} __attribute__ ((aligned(_K_SS_ALIGNSIZE))); /* force desired alignment */
	18
	19	#if defined(__KERNEL__) \|\| !defined(__GLIBC__) \|\| (__GLIBC__ < 2)
	20
	21	#include <linux/config.h> /* for CONFIG_COMPAT */
	22	#include <linux/linkage.h>
	23	#include <asm/socket.h> /* arch-dependent defines */
	24	#include <linux/sockios.h> /* the SIOCxxx I/O controls */
	25	#include <linux/uio.h> /* iovec support */
	26	#include <linux/types.h> /* pid_t */
	27	#include <linux/compiler.h> /* __user */
	28
20380731 ACM	29	extern int sysctl_somaxconn;
	30	extern void sock_init(void);
	31	#ifdef CONFIG_PROC_FS
	32	struct seq_file;
	33	extern void socket_seq_show(struct seq_file *seq);
	34	#endif
	35
1da177e4 LT	36	typedef unsigned short sa_family_t;
	37
	38	/*
	39	* 1003.1g requires sa_family_t and that sa_data is char.
	40	*/
	41
	42	struct sockaddr {
	43	sa_family_t sa_family; /* address family, AF_xxx */
	44	char sa_data[14]; /* 14 bytes of protocol address */
	45	};
	46
	47	struct linger {
	48	int l_onoff; /* Linger active */
	49	int l_linger; /* How long to linger for */
	50	};
	51
	52	#define sockaddr_storage __kernel_sockaddr_storage
	53
	54	/*
	55	* As we do 4.4BSD message passing we use a 4.4BSD message passing
	56	* system, not 4.3. Thus msg_accrights(len) are now missing. They
	57	* belong in an obscure libc emulation or the bin.
	58	*/
	59
	60	struct msghdr {
	61	void * msg_name; /* Socket name */
	62	int msg_namelen; /* Length of name */
	63	struct iovec * msg_iov; /* Data blocks */
	64	__kernel_size_t msg_iovlen; /* Number of blocks */
	65	void * msg_control; /* Per protocol magic (eg BSD file descriptor passing) */
	66	__kernel_size_t msg_controllen; /* Length of cmsg list */
	67	unsigned msg_flags;
	68	};
	69
	70	/*
	71	* POSIX 1003.1g - ancillary data object information
	72	* Ancillary data consits of a sequence of pairs of
	73	* (cmsghdr, cmsg_data[])
	74	*/
	75
	76	struct cmsghdr {
	77	__kernel_size_t cmsg_len; /* data byte count, including hdr */
	78	int cmsg_level; /* originating protocol */
	79	int cmsg_type; /* protocol-specific type */
	80	};
	81
	82	/*
	83	* Ancilliary data object information MACROS
	84	* Table 5-14 of POSIX 1003.1g
	85	*/
	86
	87	#define __CMSG_NXTHDR(ctl, len, cmsg) __cmsg_nxthdr((ctl),(len),(cmsg))
	88	#define CMSG_NXTHDR(mhdr, cmsg) cmsg_nxthdr((mhdr), (cmsg))
	89
	90	#define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) )
	91
	92	#define CMSG_DATA(cmsg) ((void )((char )(cmsg) + CMSG_ALIGN(sizeof(struct cmsghdr))))
	93	#define CMSG_SPACE(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(len))
	94	#define CMSG_LEN(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
	95
	96	#define __CMSG_FIRSTHDR(ctl,len) ((len) >= sizeof(struct cmsghdr) ? \
	97	(struct cmsghdr *)(ctl) : \
	98	(struct cmsghdr *)NULL)
	99	#define CMSG_FIRSTHDR(msg) __CMSG_FIRSTHDR((msg)->msg_control, (msg)->msg_controllen)
100	#define CMSG_OK(mhdr, cmsg) ((cmsg)->cmsg_len >= sizeof(struct cmsghdr) && \
101	(cmsg)->cmsg_len <= (unsigned long) \
102	((mhdr)->msg_controllen - \
103	((char )(cmsg) - (char )(mhdr)->msg_control)))
104
105	/*
106	* This mess will go away with glibc
107	*/
108
109	#ifdef __KERNEL__
110	#define __KINLINE static inline
111	#elif defined(__GNUC__)
112	#define __KINLINE static __inline__
113	#elif defined(__cplusplus)
114	#define __KINLINE static inline
115	#else
116	#define __KINLINE static
117	#endif
118
119
120	/*
121	* Get the next cmsg header
122	*
123	* PLEASE, do not touch this function. If you think, that it is
124	* incorrect, grep kernel sources and think about consequences
125	* before trying to improve it.
126	*
127	* Now it always returns valid, not truncated ancillary object
128	* HEADER. But caller still MUST check, that cmsg->cmsg_len is
129	* inside range, given by msg->msg_controllen before using
130	* ancillary object DATA. --ANK (980731)
131	*/
132
133	__KINLINE struct cmsghdr * __cmsg_nxthdr(void *__ctl, __kernel_size_t __size,
134	struct cmsghdr *__cmsg)
135	{
136	struct cmsghdr * __ptr;
137
138	__ptr = (struct cmsghdr)(((unsigned char ) __cmsg) + CMSG_ALIGN(__cmsg->cmsg_len));
139	if ((unsigned long)((char)(__ptr+1) - (char ) __ctl) > __size)
140	return (struct cmsghdr *)0;
141
142	return __ptr;
143	}
144
145	__KINLINE struct cmsghdr * cmsg_nxthdr (struct msghdr __msg, struct cmsghdr __cmsg)
146	{
147	return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg);
148	}
149
150	/* "Socket"-level control message types: */
151
152	#define SCM_RIGHTS 0x01 /* rw: access rights (array of int) */
153	#define SCM_CREDENTIALS 0x02 /* rw: struct ucred */
154
155	struct ucred {
156	__u32 pid;
157	__u32 uid;
158	__u32 gid;
159	};
160
161	/* Supported address families. */
162	#define AF_UNSPEC 0
163	#define AF_UNIX 1 /* Unix domain sockets */
164	#define AF_LOCAL 1 /* POSIX name for AF_UNIX */
165	#define AF_INET 2 /* Internet IP Protocol */
166	#define AF_AX25 3 /* Amateur Radio AX.25 */
167	#define AF_IPX 4 /* Novell IPX */
168	#define AF_APPLETALK 5 /* AppleTalk DDP */
169	#define AF_NETROM 6 /* Amateur Radio NET/ROM */
170	#define AF_BRIDGE 7 /* Multiprotocol bridge */
171	#define AF_ATMPVC 8 /* ATM PVCs */
172	#define AF_X25 9 /* Reserved for X.25 project */
173	#define AF_INET6 10 /* IP version 6 */
174	#define AF_ROSE 11 /* Amateur Radio X.25 PLP */
175	#define AF_DECnet 12 /* Reserved for DECnet project */
176	#define AF_NETBEUI 13 /* Reserved for 802.2LLC project*/
177	#define AF_SECURITY 14 /* Security callback pseudo AF */
178	#define AF_KEY 15 /* PF_KEY key management API */
179	#define AF_NETLINK 16
180	#define AF_ROUTE AF_NETLINK /* Alias to emulate 4.4BSD */
181	#define AF_PACKET 17 /* Packet family */
182	#define AF_ASH 18 /* Ash */
183	#define AF_ECONET 19 /* Acorn Econet */
184	#define AF_ATMSVC 20 /* ATM SVCs */
185	#define AF_SNA 22 /* Linux SNA Project (nutters!) */
186	#define AF_IRDA 23 /* IRDA sockets */
187	#define AF_PPPOX 24 /* PPPoX sockets */
188	#define AF_WANPIPE 25 /* Wanpipe API Sockets */
189	#define AF_LLC 26 /* Linux LLC */
190	#define AF_BLUETOOTH 31 /* Bluetooth sockets */
191	#define AF_MAX 32 /* For now.. */
192
193	/* Protocol families, same as address families. */
194	#define PF_UNSPEC AF_UNSPEC
195	#define PF_UNIX AF_UNIX
196	#define PF_LOCAL AF_LOCAL
197	#define PF_INET AF_INET
198	#define PF_AX25 AF_AX25
199	#define PF_IPX AF_IPX
200	#define PF_APPLETALK AF_APPLETALK
201	#define PF_NETROM AF_NETROM
202	#define PF_BRIDGE AF_BRIDGE
203	#define PF_ATMPVC AF_ATMPVC
204	#define PF_X25 AF_X25
205	#define PF_INET6 AF_INET6
206	#define PF_ROSE AF_ROSE
207	#define PF_DECnet AF_DECnet
208	#define PF_NETBEUI AF_NETBEUI
209	#define PF_SECURITY AF_SECURITY
210	#define PF_KEY AF_KEY
211	#define PF_NETLINK AF_NETLINK
212	#define PF_ROUTE AF_ROUTE
213	#define PF_PACKET AF_PACKET
214	#define PF_ASH AF_ASH
215	#define PF_ECONET AF_ECONET
216	#define PF_ATMSVC AF_ATMSVC
217	#define PF_SNA AF_SNA
218	#define PF_IRDA AF_IRDA
219	#define PF_PPPOX AF_PPPOX
220	#define PF_WANPIPE AF_WANPIPE
221	#define PF_LLC AF_LLC
222	#define PF_BLUETOOTH AF_BLUETOOTH
223	#define PF_MAX AF_MAX
224
225	/* Maximum queue length specifiable by listen. */
226	#define SOMAXCONN 128
227
228	/* Flags we can use with send/ and recv.
229	Added those for 1003.1g not all are supported yet
230	*/
231
232	#define MSG_OOB 1
233	#define MSG_PEEK 2
234	#define MSG_DONTROUTE 4
235	#define MSG_TRYHARD 4 /* Synonym for MSG_DONTROUTE for DECnet */
236	#define MSG_CTRUNC 8
237	#define MSG_PROBE 0x10 /* Do not send. Only probe path f.e. for MTU */
238	#define MSG_TRUNC 0x20
239	#define MSG_DONTWAIT 0x40 /* Nonblocking io */
240	#define MSG_EOR 0x80 /* End of record */
241	#define MSG_WAITALL 0x100 /* Wait for a full request */
242	#define MSG_FIN 0x200
243	#define MSG_SYN 0x400
244	#define MSG_CONFIRM 0x800 /* Confirm path validity */
245	#define MSG_RST 0x1000
246	#define MSG_ERRQUEUE 0x2000 /* Fetch message from error queue */
247	#define MSG_NOSIGNAL 0x4000 /* Do not generate SIGPIPE */
248	#define MSG_MORE 0x8000 /* Sender will send more */
249
250	#define MSG_EOF MSG_FIN
251
252	#if defined(CONFIG_COMPAT)
253	#define MSG_CMSG_COMPAT 0x80000000 /* This message needs 32 bit fixups */
254	#else
255	#define MSG_CMSG_COMPAT 0 /* We never have 32 bit fixups */
256	#endif
257
258
259	/* Setsockoptions(2) level. Thanks to BSD these must match IPPROTO_xxx */
260	#define SOL_IP 0
261	/* #define SOL_ICMP 1 No-no-no! Due to Linux :-) we cannot use SOL_ICMP=1 */
262	#define SOL_TCP 6
263	#define SOL_UDP 17
264	#define SOL_IPV6 41
265	#define SOL_ICMPV6 58
266	#define SOL_SCTP 132
267	#define SOL_RAW 255
268	#define SOL_IPX 256
269	#define SOL_AX25 257
270	#define SOL_ATALK 258
271	#define SOL_NETROM 259
272	#define SOL_ROSE 260
273	#define SOL_DECNET 261
274	#define SOL_X25 262
275	#define SOL_PACKET 263
276	#define SOL_ATM 264 /* ATM layer (cell level) */
277	#define SOL_AAL 265 /* ATM Adaption Layer (packet level) */
278	#define SOL_IRDA 266
279	#define SOL_NETBEUI 267
280	#define SOL_LLC 268
7c657876	281	#define SOL_DCCP 269
9a4595bc	282	#define SOL_NETLINK 270
1da177e4 LT	283
	284	/* IPX options */
	285	#define IPX_TYPE 1
	286
	287	#ifdef __KERNEL__
	288	extern int memcpy_fromiovec(unsigned char kdata, struct iovec iov, int len);
	289	extern int memcpy_fromiovecend(unsigned char kdata, struct iovec iov,
	290	int offset, int len);
	291	extern int csum_partial_copy_fromiovecend(unsigned char *kdata,
	292	struct iovec *iov,
	293	int offset,
	294	unsigned int len, int *csump);
	295
	296	extern int verify_iovec(struct msghdr m, struct iovec iov, char *address, int mode);
	297	extern int memcpy_toiovec(struct iovec v, unsigned char kdata, int len);
	298	extern int move_addr_to_user(void kaddr, int klen, void __user uaddr, int __user *ulen);
	299	extern int move_addr_to_kernel(void __user uaddr, int ulen, void kaddr);
	300	extern int put_cmsg(struct msghdr, int level, int type, int len, void data);
	301
	302	#endif
	303	#endif /* not kernel and not glibc */
	304	#endif /* _LINUX_SOCKET_H */