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18 #ifndef _LINUX_NET_H
19 #define _LINUX_NET_H
20
21
22 #include <linux/wait.h>
23 #include <linux/socket.h>
24
25
26 #define NSOCKETS 2000
27 #define NSOCKETS_UNIX 128
28 #define NPROTO 16
29
30
31 #define SYS_SOCKET 1
32 #define SYS_BIND 2
33 #define SYS_CONNECT 3
34 #define SYS_LISTEN 4
35 #define SYS_ACCEPT 5
36 #define SYS_GETSOCKNAME 6
37 #define SYS_GETPEERNAME 7
38 #define SYS_SOCKETPAIR 8
39 #define SYS_SEND 9
40 #define SYS_RECV 10
41 #define SYS_SENDTO 11
42 #define SYS_RECVFROM 12
43 #define SYS_SHUTDOWN 13
44 #define SYS_SETSOCKOPT 14
45 #define SYS_GETSOCKOPT 15
46 #define SYS_SENDMSG 16
47 #define SYS_RECVMSG 17
48
49
50 typedef enum {
51 SS_FREE = 0,
52 SS_UNCONNECTED,
53 SS_CONNECTING,
54 SS_CONNECTED,
55 SS_DISCONNECTING
56 } socket_state;
57
58 #define SO_ACCEPTCON (1<<16)
59 #define SO_WAITDATA (1<<17)
60 #define SO_NOSPACE (1<<18)
61
62 #ifdef __KERNEL__
63
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72
73
74 struct socket {
75 short type;
76 socket_state state;
77 long flags;
78 struct proto_ops *ops;
79 void *data;
80 struct socket *conn;
81 struct socket *iconn;
82 struct socket *next;
83 struct wait_queue **wait;
84 struct inode *inode;
85 struct fasync_struct *fasync_list;
86 struct file *file;
87 };
88
89 #define SOCK_INODE(S) ((S)->inode)
90
91 struct proto_ops {
92 int family;
93
94 int (*create) (struct socket *sock, int protocol);
95 int (*dup) (struct socket *newsock, struct socket *oldsock);
96 int (*release) (struct socket *sock, struct socket *peer);
97 int (*bind) (struct socket *sock, struct sockaddr *umyaddr,
98 int sockaddr_len);
99 int (*connect) (struct socket *sock, struct sockaddr *uservaddr,
100 int sockaddr_len, int flags);
101 int (*socketpair) (struct socket *sock1, struct socket *sock2);
102 int (*accept) (struct socket *sock, struct socket *newsock,
103 int flags);
104 int (*getname) (struct socket *sock, struct sockaddr *uaddr,
105 int *usockaddr_len, int peer);
106 int (*select) (struct socket *sock, int sel_type,
107 select_table *wait);
108 int (*ioctl) (struct socket *sock, unsigned int cmd,
109 unsigned long arg);
110 int (*listen) (struct socket *sock, int len);
111 int (*shutdown) (struct socket *sock, int flags);
112 int (*setsockopt) (struct socket *sock, int level, int optname,
113 char *optval, int optlen);
114 int (*getsockopt) (struct socket *sock, int level, int optname,
115 char *optval, int *optlen);
116 int (*fcntl) (struct socket *sock, unsigned int cmd,
117 unsigned long arg);
118 int (*sendmsg) (struct socket *sock, struct msghdr *m, int total_len, int nonblock, int flags);
119 int (*recvmsg) (struct socket *sock, struct msghdr *m, int total_len, int nonblock, int flags, int *addr_len);
120 };
121
122 struct net_proto {
123 const char *name;
124 void (*init_func)(struct net_proto *);
125 };
126
127 extern int sock_wake_async(struct socket *sock, int how);
128 extern int sock_register(int family, struct proto_ops *ops);
129 extern int sock_unregister(int family);
130 extern struct socket *sock_alloc(void);
131 extern void sock_release(struct socket *sock);
132 #endif
133 #endif