diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 | 
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 | 
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/net.h | |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/net.h')
| -rw-r--r-- | include/linux/net.h | 287 | 
1 files changed, 287 insertions, 0 deletions
| diff --git a/include/linux/net.h b/include/linux/net.h new file mode 100644 index 000000000000..7823b3482506 --- /dev/null +++ b/include/linux/net.h @@ -0,0 +1,287 @@ +/* + * NET		An implementation of the SOCKET network access protocol. + *		This is the master header file for the Linux NET layer, + *		or, in plain English: the networking handling part of the + *		kernel. + * + * Version:	@(#)net.h	1.0.3	05/25/93 + * + * Authors:	Orest Zborowski, <obz@Kodak.COM> + *		Ross Biro, <bir7@leland.Stanford.Edu> + *		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_NET_H +#define _LINUX_NET_H + +#include <linux/config.h> +#include <linux/wait.h> +#include <linux/stringify.h> +#include <asm/socket.h> + +struct poll_table_struct; +struct inode; + +#define NPROTO		32		/* should be enough for now..	*/ + +#define SYS_SOCKET	1		/* sys_socket(2)		*/ +#define SYS_BIND	2		/* sys_bind(2)			*/ +#define SYS_CONNECT	3		/* sys_connect(2)		*/ +#define SYS_LISTEN	4		/* sys_listen(2)		*/ +#define SYS_ACCEPT	5		/* sys_accept(2)		*/ +#define SYS_GETSOCKNAME	6		/* sys_getsockname(2)		*/ +#define SYS_GETPEERNAME	7		/* sys_getpeername(2)		*/ +#define SYS_SOCKETPAIR	8		/* sys_socketpair(2)		*/ +#define SYS_SEND	9		/* sys_send(2)			*/ +#define SYS_RECV	10		/* sys_recv(2)			*/ +#define SYS_SENDTO	11		/* sys_sendto(2)		*/ +#define SYS_RECVFROM	12		/* sys_recvfrom(2)		*/ +#define SYS_SHUTDOWN	13		/* sys_shutdown(2)		*/ +#define SYS_SETSOCKOPT	14		/* sys_setsockopt(2)		*/ +#define SYS_GETSOCKOPT	15		/* sys_getsockopt(2)		*/ +#define SYS_SENDMSG	16		/* sys_sendmsg(2)		*/ +#define SYS_RECVMSG	17		/* sys_recvmsg(2)		*/ + +typedef enum { +	SS_FREE = 0,			/* not allocated		*/ +	SS_UNCONNECTED,			/* unconnected to any socket	*/ +	SS_CONNECTING,			/* in process of connecting	*/ +	SS_CONNECTED,			/* connected to socket		*/ +	SS_DISCONNECTING		/* in process of disconnecting	*/ +} socket_state; + +#define __SO_ACCEPTCON	(1 << 16)	/* performed a listen		*/ + +#ifdef __KERNEL__ + +#define SOCK_ASYNC_NOSPACE	0 +#define SOCK_ASYNC_WAITDATA	1 +#define SOCK_NOSPACE		2 +#define SOCK_PASSCRED		3 + +#ifndef ARCH_HAS_SOCKET_TYPES +/** sock_type - Socket types + *  + * When adding some new socket type please + * grep ARCH_HAS_SOCKET_TYPE include/asm-* /socket.h, at least MIPS + * overrides this enum for binary compat reasons. + *  + * @SOCK_STREAM - stream (connection) socket + * @SOCK_DGRAM - datagram (conn.less) socket + * @SOCK_RAW - raw socket + * @SOCK_RDM - reliably-delivered message + * @SOCK_SEQPACKET - sequential packet socket  + * @SOCK_PACKET - linux specific way of getting packets at the dev level. + *		  For writing rarp and other similar things on the user level. + */ +enum sock_type { +	SOCK_STREAM	= 1, +	SOCK_DGRAM	= 2, +	SOCK_RAW	= 3, +	SOCK_RDM	= 4, +	SOCK_SEQPACKET	= 5, +	SOCK_PACKET	= 10, +}; + +#define SOCK_MAX (SOCK_PACKET + 1) + +#endif /* ARCH_HAS_SOCKET_TYPES */ + +/** + *  struct socket - general BSD socket + *  @state - socket state (%SS_CONNECTED, etc) + *  @flags - socket flags (%SOCK_ASYNC_NOSPACE, etc) + *  @ops - protocol specific socket operations + *  @fasync_list - Asynchronous wake up list + *  @file - File back pointer for gc + *  @sk - internal networking protocol agnostic socket representation + *  @wait - wait queue for several uses + *  @type - socket type (%SOCK_STREAM, etc) + *  @passcred - credentials (used only in Unix Sockets (aka PF_LOCAL)) + */ +struct socket { +	socket_state		state; +	unsigned long		flags; +	struct proto_ops	*ops; +	struct fasync_struct	*fasync_list; +	struct file		*file; +	struct sock		*sk; +	wait_queue_head_t	wait; +	short			type; +}; + +struct vm_area_struct; +struct page; +struct kiocb; +struct sockaddr; +struct msghdr; +struct module; + +struct proto_ops { +	int		family; +	struct module	*owner; +	int		(*release)   (struct socket *sock); +	int		(*bind)	     (struct socket *sock, +				      struct sockaddr *myaddr, +				      int sockaddr_len); +	int		(*connect)   (struct socket *sock, +				      struct sockaddr *vaddr, +				      int sockaddr_len, int flags); +	int		(*socketpair)(struct socket *sock1, +				      struct socket *sock2); +	int		(*accept)    (struct socket *sock, +				      struct socket *newsock, int flags); +	int		(*getname)   (struct socket *sock, +				      struct sockaddr *addr, +				      int *sockaddr_len, int peer); +	unsigned int	(*poll)	     (struct file *file, struct socket *sock, +				      struct poll_table_struct *wait); +	int		(*ioctl)     (struct socket *sock, unsigned int cmd, +				      unsigned long arg); +	int		(*listen)    (struct socket *sock, int len); +	int		(*shutdown)  (struct socket *sock, int flags); +	int		(*setsockopt)(struct socket *sock, int level, +				      int optname, char __user *optval, int optlen); +	int		(*getsockopt)(struct socket *sock, int level, +				      int optname, char __user *optval, int __user *optlen); +	int		(*sendmsg)   (struct kiocb *iocb, struct socket *sock, +				      struct msghdr *m, size_t total_len); +	int		(*recvmsg)   (struct kiocb *iocb, struct socket *sock, +				      struct msghdr *m, size_t total_len, +				      int flags); +	int		(*mmap)	     (struct file *file, struct socket *sock, +				      struct vm_area_struct * vma); +	ssize_t		(*sendpage)  (struct socket *sock, struct page *page, +				      int offset, size_t size, int flags); +}; + +struct net_proto_family { +	int		family; +	int		(*create)(struct socket *sock, int protocol); +	/* These are counters for the number of different methods of +	   each we support */ +	short		authentication; +	short		encryption; +	short		encrypt_net; +	struct module	*owner; +}; + +struct iovec; +struct kvec; + +extern int	     sock_wake_async(struct socket *sk, int how, int band); +extern int	     sock_register(struct net_proto_family *fam); +extern int	     sock_unregister(int family); +extern int	     sock_create(int family, int type, int proto, +				 struct socket **res); +extern int	     sock_create_kern(int family, int type, int proto, +				      struct socket **res); +extern int	     sock_create_lite(int family, int type, int proto, +				      struct socket **res);  +extern void	     sock_release(struct socket *sock); +extern int   	     sock_sendmsg(struct socket *sock, struct msghdr *msg, +				  size_t len); +extern int	     sock_recvmsg(struct socket *sock, struct msghdr *msg, +				  size_t size, int flags); +extern int 	     sock_map_fd(struct socket *sock); +extern struct socket *sockfd_lookup(int fd, int *err); +#define		     sockfd_put(sock) fput(sock->file) +extern int	     net_ratelimit(void); +extern unsigned long net_random(void); +extern void	     net_srandom(unsigned long); +extern void	     net_random_init(void); + +extern int   	     kernel_sendmsg(struct socket *sock, struct msghdr *msg, +				    struct kvec *vec, size_t num, size_t len); +extern int   	     kernel_recvmsg(struct socket *sock, struct msghdr *msg, +				    struct kvec *vec, size_t num, +				    size_t len, int flags); + +#ifndef CONFIG_SMP +#define SOCKOPS_WRAPPED(name) name +#define SOCKOPS_WRAP(name, fam) +#else + +#define SOCKOPS_WRAPPED(name) __unlocked_##name + +#define SOCKCALL_WRAP(name, call, parms, args)		\ +static int __lock_##name##_##call  parms		\ +{							\ +	int ret;					\ +	lock_kernel();					\ +	ret = __unlocked_##name##_ops.call  args ;\ +	unlock_kernel();				\ +	return ret;					\ +} + +#define SOCKCALL_UWRAP(name, call, parms, args)		\ +static unsigned int __lock_##name##_##call  parms	\ +{							\ +	int ret;					\ +	lock_kernel();					\ +	ret = __unlocked_##name##_ops.call  args ;\ +	unlock_kernel();				\ +	return ret;					\ +} + + +#define SOCKOPS_WRAP(name, fam)					\ +SOCKCALL_WRAP(name, release, (struct socket *sock), (sock))	\ +SOCKCALL_WRAP(name, bind, (struct socket *sock, struct sockaddr *uaddr, int addr_len), \ +	      (sock, uaddr, addr_len))				\ +SOCKCALL_WRAP(name, connect, (struct socket *sock, struct sockaddr * uaddr, \ +			      int addr_len, int flags), 	\ +	      (sock, uaddr, addr_len, flags))			\ +SOCKCALL_WRAP(name, socketpair, (struct socket *sock1, struct socket *sock2), \ +	      (sock1, sock2))					\ +SOCKCALL_WRAP(name, accept, (struct socket *sock, struct socket *newsock, \ +			 int flags), (sock, newsock, flags)) \ +SOCKCALL_WRAP(name, getname, (struct socket *sock, struct sockaddr *uaddr, \ +			 int *addr_len, int peer), (sock, uaddr, addr_len, peer)) \ +SOCKCALL_UWRAP(name, poll, (struct file *file, struct socket *sock, struct poll_table_struct *wait), \ +	      (file, sock, wait)) \ +SOCKCALL_WRAP(name, ioctl, (struct socket *sock, unsigned int cmd, \ +			 unsigned long arg), (sock, cmd, arg)) \ +SOCKCALL_WRAP(name, listen, (struct socket *sock, int len), (sock, len)) \ +SOCKCALL_WRAP(name, shutdown, (struct socket *sock, int flags), (sock, flags)) \ +SOCKCALL_WRAP(name, setsockopt, (struct socket *sock, int level, int optname, \ +			 char __user *optval, int optlen), (sock, level, optname, optval, optlen)) \ +SOCKCALL_WRAP(name, getsockopt, (struct socket *sock, int level, int optname, \ +			 char __user *optval, int __user *optlen), (sock, level, optname, optval, optlen)) \ +SOCKCALL_WRAP(name, sendmsg, (struct kiocb *iocb, struct socket *sock, struct msghdr *m, size_t len), \ +	      (iocb, sock, m, len)) \ +SOCKCALL_WRAP(name, recvmsg, (struct kiocb *iocb, struct socket *sock, struct msghdr *m, size_t len, int flags), \ +	      (iocb, sock, m, len, flags)) \ +SOCKCALL_WRAP(name, mmap, (struct file *file, struct socket *sock, struct vm_area_struct *vma), \ +	      (file, sock, vma)) \ +	      \ +static struct proto_ops name##_ops = {			\ +	.family		= fam,				\ +	.owner		= THIS_MODULE,			\ +	.release	= __lock_##name##_release,	\ +	.bind		= __lock_##name##_bind,		\ +	.connect	= __lock_##name##_connect,	\ +	.socketpair	= __lock_##name##_socketpair,	\ +	.accept		= __lock_##name##_accept,	\ +	.getname	= __lock_##name##_getname,	\ +	.poll		= __lock_##name##_poll,		\ +	.ioctl		= __lock_##name##_ioctl,	\ +	.listen		= __lock_##name##_listen,	\ +	.shutdown	= __lock_##name##_shutdown,	\ +	.setsockopt	= __lock_##name##_setsockopt,	\ +	.getsockopt	= __lock_##name##_getsockopt,	\ +	.sendmsg	= __lock_##name##_sendmsg,	\ +	.recvmsg	= __lock_##name##_recvmsg,	\ +	.mmap		= __lock_##name##_mmap,		\ +}; +#endif + +#define MODULE_ALIAS_NETPROTO(proto) \ +	MODULE_ALIAS("net-pf-" __stringify(proto)) + +#endif /* __KERNEL__ */ +#endif	/* _LINUX_NET_H */ | 
