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Annotation of researchv9/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: /*
        !            19:  * Sequence from originating side is open /dev/tcp??, write
        !            20:  * struct tcpuser (see tcp_device.c), the soisconnecting(),
        !            21:  * soisconnected(), soisdisconnecting(), soisdisconnected().
        !            22:  * On listening side, sonewconn(so) is called when a connection
        !            23:  * is made to socket so, then soisconnected(), at which point the
        !            24:  * user is notified and should open the new /dev/tcp??.
        !            25:  */
        !            26: 
        !            27: soisconnecting(so)
        !            28: register struct socket *so;
        !            29: {
        !            30:        so->so_state |= SS_ACTIVE;
        !            31:        /* no need to wake up user */
        !            32: }
        !            33: 
        !            34: soisconnected(so)
        !            35: register struct socket *so;
        !            36: {
        !            37:        tcp_isconnected(so);    /* tell user */
        !            38: }
        !            39: 
        !            40: soisdisconnecting(so)
        !            41: register struct socket *so;
        !            42: {
        !            43:        so->so_state &= ~SS_PLEASEOPEN;
        !            44:        tcp_hungup(so); /* sends M_HANGUP */
        !            45: }
        !            46: 
        !            47: soisdisconnected(so)
        !            48: register struct socket *so;
        !            49: {
        !            50:        so->so_state &= ~(SS_ACTIVE|SS_PLEASEOPEN|SS_RCVATMARK);
        !            51:        if(so->so_state&SS_OPEN && !(so->so_state&SS_HUNGUP)) {
        !            52:                so->so_state |= SS_HUNGUP;
        !            53:                tcp_hungup(so);
        !            54:        }
        !            55: }
        !            56: 
        !            57: struct socket *
        !            58: sonewconn(head)
        !            59: register struct socket *head;
        !            60: {
        !            61:        register struct socket *so;
        !            62:        extern struct socket *tcp_newconn();
        !            63: 
        !            64:        so = tcp_newconn(head);
        !            65:        if(so == 0)
        !            66:                goto bad;
        !            67:        if(tcp_attach(so))
        !            68:                goto bad;
        !            69: 
        !            70:        so->so_options = head->so_options & ~SO_ACCEPTCONN;
        !            71:        so->so_state = SS_ACTIVE|SS_PLEASEOPEN;
        !            72:        /* simulate PRU_ATTACH */
        !            73:        return(so);
        !            74: bad:
        !            75:        printf("sonewconn bad\n");
        !            76:        return(0);
        !            77: }
        !            78: 
        !            79: soabort(so)
        !            80: register struct socket *so;
        !            81: {
        !            82:        if(so->so_tcpcb)
        !            83:                tcp_drop(so->so_tcpcb);
        !            84: }
        !            85: 
        !            86: socantrcvmore(so)
        !            87: struct socket *so;
        !            88: {
        !            89:        tcp_cantrcvmore(so);
        !            90: }
        !            91: #endif

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