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Annotation of researchv8dc/sys/inet/socket.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * socket emulation routines
        !             3:  * pretty much 4.2 sys/uipc_socket2.c
        !             4:  */
        !             5: #include "tcp.h"
        !             6: #if NTCP > 0
        !             7: 
        !             8: #include "../h/param.h"
        !             9: #include "../h/systm.h"
        !            10: #include "../h/stream.h"
        !            11: #include "../h/inet/in.h"
        !            12: #include "../h/inet/mbuf.h"
        !            13: #include "../h/inet/tcp.h"
        !            14: #include "../h/inet/tcp_timer.h"
        !            15: #include "../h/inet/socket.h"
        !            16: #include "../h/inet/tcp_var.h"
        !            17: 
        !            18: extern struct tcpcb tcpcb[];
        !            19: extern struct socket tcpsock[];
        !            20: extern int Ntcp;
        !            21: 
        !            22: /*
        !            23:  * Sequence from originating side is open /dev/tcp??, write
        !            24:  * struct tcpuser (see tcp_device.c), the soisconnecting(),
        !            25:  * soisconnected(), soisdisconnecting(), soisdisconnected().
        !            26:  * On listening side, sonewconn(so) is called when a connection
        !            27:  * is made to socket so, then soisconnected(), at which point the
        !            28:  * user is notified and should open the new /dev/tcp??.
        !            29:  */
        !            30: 
        !            31: soisconnecting(so)
        !            32: register struct socket *so;
        !            33: {
        !            34:        so->so_state |= SS_ACTIVE;
        !            35:        /* no need to wake up user */
        !            36: }
        !            37: 
        !            38: soisconnected(so)
        !            39: register struct socket *so;
        !            40: {
        !            41:        tcp_isconnected(so);    /* tell user */
        !            42: }
        !            43: 
        !            44: soisdisconnecting(so)
        !            45: register struct socket *so;
        !            46: {
        !            47:        so->so_state &= ~SS_PLEASEOPEN;
        !            48:        tcp_hungup(so); /* sends M_HANGUP */
        !            49: }
        !            50: 
        !            51: soisdisconnected(so)
        !            52: register struct socket *so;
        !            53: {
        !            54:        so->so_state &= ~(SS_ACTIVE|SS_PLEASEOPEN|SS_RCVATMARK);
        !            55:        if(so->so_state&SS_OPEN && !(so->so_state&SS_HUNGUP)) {
        !            56:                so->so_state |= SS_HUNGUP;
        !            57:                tcp_hungup(so);
        !            58:        }
        !            59: }
        !            60: 
        !            61: struct socket *
        !            62: sonewconn(head)
        !            63: register struct socket *head;
        !            64: {
        !            65:        register struct socket *so;
        !            66:        extern struct socket *tcp_newconn();
        !            67: 
        !            68:        so = tcp_newconn(head);
        !            69:        if(so == 0)
        !            70:                goto bad;
        !            71:        if(tcp_attach(so))
        !            72:                goto bad;
        !            73: 
        !            74:        so->so_options = head->so_options & ~SO_ACCEPTCONN;
        !            75:        so->so_state = SS_ACTIVE|SS_PLEASEOPEN;
        !            76:        /* simulate PRU_ATTACH */
        !            77:        return(so);
        !            78: bad:
        !            79:        printf("sonewconn bad\n");
        !            80:        return(0);
        !            81: }
        !            82: 
        !            83: soabort(so)
        !            84: register struct socket *so;
        !            85: {
        !            86:        if(so->so_tcpcb)
        !            87:                tcp_drop(so->so_tcpcb);
        !            88: }
        !            89: 
        !            90: socantrcvmore(so)
        !            91: struct socket *so;
        !            92: {
        !            93:        tcp_cantrcvmore(so);
        !            94: }

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