include/linux/socket.h - kernel/msm-5.4 - Gitiles

 /* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SOCKET_H
 #define _LINUX_SOCKET_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			*/
 #include <uapi/linux/socket.h>

 struct pid;
 struct cred;

 #define __sockaddr_check_size(size)	\
 	BUILD_BUG_ON(((size) > sizeof(struct __kernel_sockaddr_storage)))

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

 typedef __kernel_sa_family_t	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;	/* ptr to socket address structure */
 	int		msg_namelen;	/* size of socket address structure */
 	struct iov_iter	msg_iter;	/* data */
 	void		*msg_control;	/* ancillary data */
 	__kernel_size_t	msg_controllen;	/* ancillary data buffer length */
 	unsigned int	msg_flags;	/* flags on received message */
 	struct kiocb	*msg_iocb;	/* ptr to iocb for async requests */
 };

 struct user_msghdr {
 	void		__user *msg_name;	/* ptr to socket address structure */
 	int		msg_namelen;		/* size of socket address structure */
 	struct iovec	__user *msg_iov;	/* scatter/gather array */
 	__kernel_size_t	msg_iovlen;		/* # elements in msg_iov */
 	void		__user *msg_control;	/* ancillary data */
 	__kernel_size_t	msg_controllen;		/* ancillary data buffer length */
 	unsigned int	msg_flags;		/* flags on received message */
 };

 /* For recvmmsg/sendmmsg */
 struct mmsghdr {
 	struct user_msghdr  msg_hdr;
 	unsigned int        msg_len;
 };

 /*
  *	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 */
 };

 /*
  *	Ancillary 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) + sizeof(struct cmsghdr)))
 #define CMSG_SPACE(len) (sizeof(struct cmsghdr) + CMSG_ALIGN(len))
 #define CMSG_LEN(len) (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)))
 #define for_each_cmsghdr(cmsg, msg) \
 	for (cmsg = CMSG_FIRSTHDR(msg); \
 	     cmsg; \
 	     cmsg = CMSG_NXTHDR(msg, cmsg))

 /*
  *	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)
  */

 static inline 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;
 }

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

 static inline size_t msg_data_left(struct msghdr *msg)
 {
 	return iov_iter_count(&msg->msg_iter);
 }

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

 #define	SCM_RIGHTS	0x01		/* rw: access rights (array of int) */
 #define SCM_CREDENTIALS 0x02		/* rw: struct ucred		*/
 #define SCM_SECURITY	0x03		/* rw: security label		*/

 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_RDS		21	/* RDS sockets 			*/
 #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_IB		27	/* Native InfiniBand address	*/
 #define AF_MPLS		28	/* MPLS */
 #define AF_CAN		29	/* Controller Area Network      */
 #define AF_TIPC		30	/* TIPC sockets			*/
 #define AF_BLUETOOTH	31	/* Bluetooth sockets 		*/
 #define AF_IUCV		32	/* IUCV sockets			*/
 #define AF_RXRPC	33	/* RxRPC sockets 		*/
 #define AF_ISDN		34	/* mISDN sockets 		*/
 #define AF_PHONET	35	/* Phonet sockets		*/
 #define AF_IEEE802154	36	/* IEEE802154 sockets		*/
 #define AF_CAIF		37	/* CAIF sockets			*/
 #define AF_ALG		38	/* Algorithm sockets		*/
 #define AF_NFC		39	/* NFC sockets			*/
 #define AF_VSOCK	40	/* vSockets			*/
 #define AF_KCM		41	/* Kernel Connection Multiplexor*/
 #define AF_QIPCRTR	42	/* Qualcomm IPC Router          */
 #define AF_SMC		43	/* smc sockets: reserve number for
 				 * PF_SMC protocol family that
 				 * reuses AF_INET address family
 				 */

 #define AF_MAX		44	/* 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_RDS		AF_RDS
 #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_IB		AF_IB
 #define PF_MPLS		AF_MPLS
 #define PF_CAN		AF_CAN
 #define PF_TIPC		AF_TIPC
 #define PF_BLUETOOTH	AF_BLUETOOTH
 #define PF_IUCV		AF_IUCV
 #define PF_RXRPC	AF_RXRPC
 #define PF_ISDN		AF_ISDN
 #define PF_PHONET	AF_PHONET
 #define PF_IEEE802154	AF_IEEE802154
 #define PF_CAIF		AF_CAIF
 #define PF_ALG		AF_ALG
 #define PF_NFC		AF_NFC
 #define PF_VSOCK	AF_VSOCK
 #define PF_KCM		AF_KCM
 #define PF_QIPCRTR	AF_QIPCRTR
 #define PF_SMC		AF_SMC
 #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_WAITFORONE	0x10000	/* recvmmsg(): block until 1+ packets avail */
 #define MSG_SENDPAGE_NOTLAST 0x20000 /* sendpage() internal : not the last page */
 #define MSG_BATCH	0x40000 /* sendmmsg(): more messages coming */
 #define MSG_EOF         MSG_FIN

 #define MSG_ZEROCOPY	0x4000000	/* Use user data in kernel path */
 #define MSG_FASTOPEN	0x20000000	/* Send data in TCP SYN */
 #define MSG_CMSG_CLOEXEC 0x40000000	/* Set close_on_exec for file
 					   descriptor received through
 					   SCM_RIGHTS */
 #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_UDPLITE	136     /* UDP-Lite (RFC 3828) */
 #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
 #define SOL_TIPC	271
 #define SOL_RXRPC	272
 #define SOL_PPPOL2TP	273
 #define SOL_BLUETOOTH	274
 #define SOL_PNPIPE	275
 #define SOL_RDS		276
 #define SOL_IUCV	277
 #define SOL_CAIF	278
 #define SOL_ALG		279
 #define SOL_NFC		280
 #define SOL_KCM		281
 #define SOL_TLS		282

 /* IPX options */
 #define IPX_TYPE	1

 extern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *kaddr);
 extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);

 struct timespec;

 /* The __sys_...msg variants allow MSG_CMSG_COMPAT */
 extern long __sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
 extern long __sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
 extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen,
 			  unsigned int flags, struct timespec *timeout);
 extern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg,
 			  unsigned int vlen, unsigned int flags);

 extern struct ns_common *get_net_ns(struct ns_common *ns);
 #endif /* _LINUX_SOCKET_H */
	/* SPDX-License-Identifier: GPL-2.0 */
	#ifndef _LINUX_SOCKET_H
	#define _LINUX_SOCKET_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 */
	#include <uapi/linux/socket.h>

	struct pid;
	struct cred;

	#define __sockaddr_check_size(size) \
	BUILD_BUG_ON(((size) > sizeof(struct __kernel_sockaddr_storage)))

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

	typedef __kernel_sa_family_t 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; / ptr to socket address structure */
	int msg_namelen; /* size of socket address structure */
	struct iov_iter msg_iter; /* data */
	void msg_control; / ancillary data */
	__kernel_size_t msg_controllen; /* ancillary data buffer length */
	unsigned int msg_flags; /* flags on received message */
	struct kiocb msg_iocb; / ptr to iocb for async requests */
	};

	struct user_msghdr {
	void __user msg_name; / ptr to socket address structure */
	int msg_namelen; /* size of socket address structure */
	struct iovec __user msg_iov; / scatter/gather array */
	__kernel_size_t msg_iovlen; /* # elements in msg_iov */
	void __user msg_control; / ancillary data */
	__kernel_size_t msg_controllen; /* ancillary data buffer length */
	unsigned int msg_flags; /* flags on received message */
	};

	/* For recvmmsg/sendmmsg */
	struct mmsghdr {
	struct user_msghdr msg_hdr;
	unsigned int msg_len;
	};

	/*
	* 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 */
	};

	/*
	* Ancillary 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) + sizeof(struct cmsghdr)))
	#define CMSG_SPACE(len) (sizeof(struct cmsghdr) + CMSG_ALIGN(len))
	#define CMSG_LEN(len) (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)))
	#define for_each_cmsghdr(cmsg, msg) \
	for (cmsg = CMSG_FIRSTHDR(msg); \
	cmsg; \
	cmsg = CMSG_NXTHDR(msg, cmsg))

	/*
	* 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)
	*/

	static inline 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;
	}

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

	static inline size_t msg_data_left(struct msghdr *msg)
	{
	return iov_iter_count(&msg->msg_iter);
	}

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

	#define SCM_RIGHTS 0x01 /* rw: access rights (array of int) */
	#define SCM_CREDENTIALS 0x02 /* rw: struct ucred */
	#define SCM_SECURITY 0x03 /* rw: security label */

	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_RDS 21 /* RDS sockets */
	#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_IB 27 /* Native InfiniBand address */
	#define AF_MPLS 28 /* MPLS */
	#define AF_CAN 29 /* Controller Area Network */
	#define AF_TIPC 30 /* TIPC sockets */
	#define AF_BLUETOOTH 31 /* Bluetooth sockets */
	#define AF_IUCV 32 /* IUCV sockets */
	#define AF_RXRPC 33 /* RxRPC sockets */
	#define AF_ISDN 34 /* mISDN sockets */
	#define AF_PHONET 35 /* Phonet sockets */
	#define AF_IEEE802154 36 /* IEEE802154 sockets */
	#define AF_CAIF 37 /* CAIF sockets */
	#define AF_ALG 38 /* Algorithm sockets */
	#define AF_NFC 39 /* NFC sockets */
	#define AF_VSOCK 40 /* vSockets */
	#define AF_KCM 41 /* Kernel Connection Multiplexor*/
	#define AF_QIPCRTR 42 /* Qualcomm IPC Router */
	#define AF_SMC 43 /* smc sockets: reserve number for
	* PF_SMC protocol family that
	* reuses AF_INET address family
	*/

	#define AF_MAX 44 /* 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_RDS AF_RDS
	#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_IB AF_IB
	#define PF_MPLS AF_MPLS
	#define PF_CAN AF_CAN
	#define PF_TIPC AF_TIPC
	#define PF_BLUETOOTH AF_BLUETOOTH
	#define PF_IUCV AF_IUCV
	#define PF_RXRPC AF_RXRPC
	#define PF_ISDN AF_ISDN
	#define PF_PHONET AF_PHONET
	#define PF_IEEE802154 AF_IEEE802154
	#define PF_CAIF AF_CAIF
	#define PF_ALG AF_ALG
	#define PF_NFC AF_NFC
	#define PF_VSOCK AF_VSOCK
	#define PF_KCM AF_KCM
	#define PF_QIPCRTR AF_QIPCRTR
	#define PF_SMC AF_SMC
	#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_WAITFORONE 0x10000 /* recvmmsg(): block until 1+ packets avail */
	#define MSG_SENDPAGE_NOTLAST 0x20000 /* sendpage() internal : not the last page */
	#define MSG_BATCH 0x40000 /* sendmmsg(): more messages coming */
	#define MSG_EOF MSG_FIN

	#define MSG_ZEROCOPY 0x4000000 /* Use user data in kernel path */
	#define MSG_FASTOPEN 0x20000000 /* Send data in TCP SYN */
	#define MSG_CMSG_CLOEXEC 0x40000000 /* Set close_on_exec for file
	descriptor received through
	SCM_RIGHTS */
	#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_UDPLITE 136 /* UDP-Lite (RFC 3828) */
	#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
	#define SOL_TIPC 271
	#define SOL_RXRPC 272
	#define SOL_PPPOL2TP 273
	#define SOL_BLUETOOTH 274
	#define SOL_PNPIPE 275
	#define SOL_RDS 276
	#define SOL_IUCV 277
	#define SOL_CAIF 278
	#define SOL_ALG 279
	#define SOL_NFC 280
	#define SOL_KCM 281
	#define SOL_TLS 282

	/* IPX options */
	#define IPX_TYPE 1

	extern int move_addr_to_kernel(void __user uaddr, int ulen, struct sockaddr_storage kaddr);
	extern int put_cmsg(struct msghdr, int level, int type, int len, void data);

	struct timespec;

	/* The __sys_...msg variants allow MSG_CMSG_COMPAT */
	extern long __sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
	extern long __sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
	extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen,
	unsigned int flags, struct timespec *timeout);
	extern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg,
	unsigned int vlen, unsigned int flags);

	extern struct ns_common get_net_ns(struct ns_common ns);
	#endif /* _LINUX_SOCKET_H */