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Annotation of linux/net/kern_sock.h, revision 1.1

1.1     ! root        1: #ifndef _KERN_SOCK_H
        !             2: #define _KERN_SOCK_H
        !             3: 
        !             4: #define NSOCKETS 128                   /* should be dynamic, later... */
        !             5: 
        !             6: typedef enum {
        !             7:        SS_FREE = 0,                    /* not allocated */
        !             8:        SS_UNCONNECTED,                 /* unconnected to any socket */
        !             9:        SS_CONNECTING,                  /* in process of connecting */
        !            10:        SS_CONNECTED,                   /* connected to socket */
        !            11:        SS_DISCONNECTING,               /* in process of disconnecting */
        !            12: } socket_state;
        !            13: 
        !            14: #define SO_ACCEPTCON   (1<<16)         /* performed a listen */
        !            15: 
        !            16: /*
        !            17:  * internel representation of a socket. not all the fields are used by
        !            18:  * all configurations:
        !            19:  *
        !            20:  *             server                  client
        !            21:  * conn                client connected to     server connected to
        !            22:  * iconn       list of clients         -unused-
        !            23:  *              awaiting connections
        !            24:  * wait                sleep for clients,      sleep for connection,
        !            25:  *             sleep for i/o           sleep for i/o
        !            26:  */
        !            27: struct socket {
        !            28:        short type;                     /* SOCK_STREAM, ... */
        !            29:        socket_state state;
        !            30:        long flags;
        !            31:        struct proto_ops *ops;          /* protocols do most everything */
        !            32:        char *data;                     /* protocol data */
        !            33:        struct socket *conn;            /* server socket connected to */
        !            34:        struct socket *iconn;           /* incomplete client connections */
        !            35:        struct socket *next;
        !            36:        struct task_struct **wait;      /* ptr to place to wait on */
        !            37:        void *dummy;
        !            38: };
        !            39: 
        !            40: struct proto_ops {
        !            41:        int (*init)(void);
        !            42:        int (*create)(struct socket *sock, int protocol);
        !            43:        int (*dup)(struct socket *newsock, struct socket *oldsock);
        !            44:        int (*release)(struct socket *sock, struct socket *peer);
        !            45:        int (*bind)(struct socket *sock, struct sockaddr *umyaddr,
        !            46:                    int sockaddr_len);
        !            47:        int (*connect)(struct socket *sock, struct sockaddr *uservaddr,
        !            48:                       int sockaddr_len);
        !            49:        int (*socketpair)(struct socket *sock1, struct socket *sock2);
        !            50:        int (*accept)(struct socket *sock, struct socket *newsock);
        !            51:        int (*getname)(struct socket *sock, struct sockaddr *uaddr,
        !            52:                       int *usockaddr_len, int peer);
        !            53:        int (*read)(struct socket *sock, char *ubuf, int size, int nonblock);
        !            54:        int (*write)(struct socket *sock, char *ubuf, int size, int nonblock);
        !            55:        int (*select)(struct socket *sock, int which);
        !            56:        int (*ioctl)(struct socket *sock, unsigned int cmd, unsigned long arg);
        !            57: };
        !            58: 
        !            59: extern int sock_awaitconn(struct socket *mysock, struct socket *servsock);
        !            60: 
        !            61: #ifdef SOCK_DEBUG
        !            62: #define PRINTK printk
        !            63: #else
        !            64: #define PRINTK (void)
        !            65: #endif
        !            66: 
        !            67: #endif /* _KERN_SOCK_H */

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