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18 #ifndef _LINUX_NET_H
19 #define _LINUX_NET_H
20
21
22 #include <linux/wait.h>
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24
25 #define NSOCKETS 128
26 #define NPROTO 16
27
28
29 #define SYS_SOCKET 1
30 #define SYS_BIND 2
31 #define SYS_CONNECT 3
32 #define SYS_LISTEN 4
33 #define SYS_ACCEPT 5
34 #define SYS_GETSOCKNAME 6
35 #define SYS_GETPEERNAME 7
36 #define SYS_SOCKETPAIR 8
37 #define SYS_SEND 9
38 #define SYS_RECV 10
39 #define SYS_SENDTO 11
40 #define SYS_RECVFROM 12
41 #define SYS_SHUTDOWN 13
42 #define SYS_SETSOCKOPT 14
43 #define SYS_GETSOCKOPT 15
44
45
46 typedef enum {
47 SS_FREE = 0,
48 SS_UNCONNECTED,
49 SS_CONNECTING,
50 SS_CONNECTED,
51 SS_DISCONNECTING,
52 } socket_state;
53
54 #define SO_ACCEPTCON (1<<16)
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68 struct socket {
69 short type;
70 socket_state state;
71 long flags;
72 struct proto_ops *ops;
73 void *data;
74 struct socket *conn;
75 struct socket *iconn;
76 struct socket *next;
77 struct wait_queue **wait;
78 void *dummy;
79 };
80
81 #define SOCK_INODE(S) ((struct inode *)(S)->dummy)
82 extern struct socket sockets[NSOCKETS];
83 #define last_socket (sockets + NSOCKETS - 1)
84
85
86 struct proto_ops {
87 int family;
88
89 int (*create) (struct socket *sock, int protocol);
90 int (*dup) (struct socket *newsock, struct socket *oldsock);
91 int (*release) (struct socket *sock, struct socket *peer);
92 int (*bind) (struct socket *sock, struct sockaddr *umyaddr,
93 int sockaddr_len);
94 int (*connect) (struct socket *sock, struct sockaddr *uservaddr,
95 int sockaddr_len, int flags);
96 int (*socketpair) (struct socket *sock1, struct socket *sock2);
97 int (*accept) (struct socket *sock, struct socket *newsock,
98 int flags);
99 int (*getname) (struct socket *sock, struct sockaddr *uaddr,
100 int *usockaddr_len, int peer);
101 int (*read) (struct socket *sock, char *ubuf, int size,
102 int nonblock);
103 int (*write) (struct socket *sock, char *ubuf, int size,
104 int nonblock);
105 int (*select) (struct socket *sock, int sel_type,
106 select_table *wait);
107 int (*ioctl) (struct socket *sock, unsigned int cmd,
108 unsigned long arg);
109 int (*listen) (struct socket *sock, int len);
110 int (*send) (struct socket *sock, void *buff, int len, int nonblock,
111 unsigned flags);
112 int (*recv) (struct socket *sock, void *buff, int len, int nonblock,
113 unsigned flags);
114 int (*sendto) (struct socket *sock, void *buff, int len, int nonblock,
115 unsigned flags, struct sockaddr *, int addr_len);
116 int (*recvfrom) (struct socket *sock, void *buff, int len, int nonblock,
117 unsigned flags, struct sockaddr *, int *addr_len);
118 int (*shutdown) (struct socket *sock, int flags);
119 int (*setsockopt) (struct socket *sock, int level, int optname,
120 char *optval, int optlen);
121 int (*getsockopt) (struct socket *sock, int level, int optname,
122 char *optval, int *optlen);
123 int (*fcntl) (struct socket *sock, unsigned int cmd,
124 unsigned long arg);
125 };
126
127
128 extern int sock_awaitconn(struct socket *mysock, struct socket *servsock);
129 extern int sock_register(int family, struct proto_ops *ops);
130
131
132 #endif