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Annotation of 43BSD/sys/vaxif/raw_hy.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  *     @(#)raw_hy.c    7.1     6/5/86
                      3:  *
                      4:  * 4.3 BSD Unix kernel - NSC HYPERchannel support
                      5:  *
                      6:  * $Header: raw_hy.c,v 3.1 84/02/15 04:27:44 steveg Exp $
                      7:  * $Locker:  $
                      8:  *
                      9:  * Copyright (c) 1984, Tektronix Inc.
                     10:  * All Rights Reserved
                     11:  *
                     12:  */
                     13: 
                     14: #include "hy.h"
                     15: #if NHY > 0
                     16: 
                     17: #include "param.h"
                     18: #include "mbuf.h"
                     19: #include "socket.h"
                     20: #include "protosw.h"
                     21: #include "socketvar.h"
                     22: #include "errno.h"
                     23: 
                     24: #include "../net/if.h"
                     25: #include "../net/route.h"
                     26: #include "../net/raw_cb.h"
                     27: 
                     28: #include "../netinet/in.h"
                     29: #include "../netinet/in_systm.h"
                     30: #include "../netinet/in_var.h"
                     31: #include "if_hy.h"
                     32: 
                     33: /*
                     34:  * Raw interface to HYPERchannel.
                     35:  */
                     36: 
                     37: /*
                     38:  * Generate HYPERchannel leader and pass packet to hyoutput.
                     39:  * The user must create a skeletal leader in order to
                     40:  * communicate message type, message subtype, etc.
                     41:  * We don't really check the header supplied by the user.
                     42:  */
                     43: rhy_output(m, so)
                     44:        register struct mbuf *m;
                     45:        struct socket *so;
                     46: {
                     47:        int error = 0;
                     48:        register struct sockaddr_in *sin;
                     49:        register struct rawcb *rp = sotorawcb(so);
                     50:        struct in_ifaddr *ia;
                     51: 
                     52:        /*
                     53:         * Verify user has supplied necessary space
                     54:         * for the header.
                     55:         */
                     56:        if ((m->m_off > MMAXOFF || m->m_len < sizeof(struct hym_hdr)) &&
                     57:            (m = m_pullup(m, sizeof(struct hym_hdr))) == 0) {
                     58:                error = EMSGSIZE;       /* XXX */
                     59:                goto bad;
                     60:        }
                     61: 
                     62:        sin = (struct sockaddr_in *)&rp->rcb_faddr;
                     63:        /* no routing here */
                     64:        ia = in_iaonnetof(in_netof(sin->sin_addr));
                     65:        if (ia)
                     66:                return (hyoutput(ia->ia_ifp, m, (struct sockaddr *)sin));
                     67:        error = ENETUNREACH;
                     68: bad:
                     69:        m_freem(m);
                     70:        return (error);
                     71: }
                     72: #endif

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