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Annotation of researchv9/sys/inet/socket.c, revision 1.1.1.1

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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