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