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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
47
48 typedef enum {
49 SS_FREE = 0,
50 SS_UNCONNECTED,
51 SS_CONNECTING,
52 SS_CONNECTED,
53 SS_DISCONNECTING
54 } socket_state;
55
56 #define SO_ACCEPTCON (1<<16)
57 #define SO_WAITDATA (1<<17)
58 #define SO_NOSPACE (1<<18)
59
60 #ifdef __KERNEL__
61
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71
72 struct socket {
73 short type;
74 socket_state state;
75 long flags;
76 struct proto_ops *ops;
77 void *data;
78 struct socket *conn;
79 struct socket *iconn;
80 struct socket *next;
81 struct wait_queue **wait;
82 struct inode *inode;
83 struct fasync_struct *fasync_list;
84 struct socket *nextsock;
85 struct socket *prevsock;
86 };
87
88 #define SOCK_INODE(S) ((S)->inode)
89
90 struct proto_ops {
91 int family;
92
93 int (*create) (struct socket *sock, int protocol);
94 int (*dup) (struct socket *newsock, struct socket *oldsock);
95 int (*release) (struct socket *sock, struct socket *peer);
96 int (*bind) (struct socket *sock, struct sockaddr *umyaddr,
97 int sockaddr_len);
98 int (*connect) (struct socket *sock, struct sockaddr *uservaddr,
99 int sockaddr_len, int flags);
100 int (*socketpair) (struct socket *sock1, struct socket *sock2);
101 int (*accept) (struct socket *sock, struct socket *newsock,
102 int flags);
103 int (*getname) (struct socket *sock, struct sockaddr *uaddr,
104 int *usockaddr_len, int peer);
105 int (*read) (struct socket *sock, char *ubuf, int size,
106 int nonblock);
107 int (*write) (struct socket *sock, char *ubuf, int size,
108 int nonblock);
109 int (*select) (struct socket *sock, int sel_type,
110 select_table *wait);
111 int (*ioctl) (struct socket *sock, unsigned int cmd,
112 unsigned long arg);
113 int (*listen) (struct socket *sock, int len);
114 int (*send) (struct socket *sock, void *buff, int len, int nonblock,
115 unsigned flags);
116 int (*recv) (struct socket *sock, void *buff, int len, int nonblock,
117 unsigned flags);
118 int (*sendto) (struct socket *sock, void *buff, int len, int nonblock,
119 unsigned flags, struct sockaddr *, int addr_len);
120 int (*recvfrom) (struct socket *sock, void *buff, int len, int nonblock,
121 unsigned flags, struct sockaddr *, int *addr_len);
122 int (*shutdown) (struct socket *sock, int flags);
123 int (*setsockopt) (struct socket *sock, int level, int optname,
124 char *optval, int optlen);
125 int (*getsockopt) (struct socket *sock, int level, int optname,
126 char *optval, int *optlen);
127 int (*fcntl) (struct socket *sock, unsigned int cmd,
128 unsigned long arg);
129 };
130
131 struct net_proto {
132 char *name;
133 void (*init_func)(struct net_proto *);
134 };
135
136 extern int sock_awaitconn(struct socket *mysock, struct socket *servsock, int flags);
137 extern int sock_wake_async(struct socket *sock, int how);
138 extern int sock_register(int family, struct proto_ops *ops);
139 extern int sock_unregister(int family);
140
141 #endif
142 #endif