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- /*
- * 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/socket.h>
-
- struct poll_table_struct;
-
- #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 */
- #define SO_WAITDATA (1<<17) /* wait data to read */
- #define SO_NOSPACE (1<<18) /* no space to write */
-
- #ifdef __KERNEL__
-
- struct socket
- {
- socket_state state;
-
- unsigned long flags;
- struct proto_ops *ops;
- struct inode *inode;
- struct fasync_struct *fasync_list; /* Asynchronous wake up list */
- struct file *file; /* File back pointer for gc */
- struct sock *sk;
- struct wait_queue *wait;
-
- short type;
- unsigned char passcred;
- unsigned char tli;
- };
-
- #define SOCK_INODE(S) ((S)->inode)
-
- struct scm_cookie;
-
- struct proto_ops {
- int family;
-
- int (*dup) (struct socket *newsock, struct socket *oldsock);
- int (*release) (struct socket *sock, struct socket *peer);
- int (*bind) (struct socket *sock, struct sockaddr *umyaddr,
- int sockaddr_len);
- int (*connect) (struct socket *sock, struct sockaddr *uservaddr,
- 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 *uaddr,
- int *usockaddr_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 *optval, int optlen);
- int (*getsockopt) (struct socket *sock, int level, int optname,
- char *optval, int *optlen);
- int (*fcntl) (struct socket *sock, unsigned int cmd,
- unsigned long arg);
- int (*sendmsg) (struct socket *sock, struct msghdr *m, int total_len, struct scm_cookie *scm);
- int (*recvmsg) (struct socket *sock, struct msghdr *m, int total_len, int flags, struct scm_cookie *scm);
- };
-
- 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 net_proto
- {
- const char *name; /* Protocol name */
- void (*init_func)(struct net_proto *); /* Bootstrap */
- };
-
- extern struct net_proto_family *net_families[];
- extern int sock_wake_async(struct socket *sk, int how);
- extern int sock_register(struct net_proto_family *fam);
- extern int sock_unregister(int family);
- extern struct socket *sock_alloc(void);
- extern int sock_create(int family, int type, int proto, struct socket **);
- extern void sock_release(struct socket *);
- extern int sock_sendmsg(struct socket *, struct msghdr *m, int len);
- extern int sock_recvmsg(struct socket *, struct msghdr *m, int len, int flags);
- extern int sock_readv_writev(int type, struct inode * inode, struct file * file,
- const struct iovec * iov, long count, long size);
-
- extern int net_ratelimit(void);
- extern unsigned long net_random(void);
- extern void net_srandom(unsigned long);
-
- #endif /* __KERNEL__ */
- #endif /* _LINUX_NET_H */
-