1 /* 2 * Copyright (c) 1988 Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Tektronix Inc. 7 * 8 * Redistribution and use in source and binary forms are permitted 9 * provided that the above copyright notice and this paragraph are 10 * duplicated in all such forms and that any documentation, 11 * advertising materials, and other materials related to such 12 * distribution and use acknowledge that the software was developed 13 * by the University of California, Berkeley. The name of the 14 * University may not be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 19 * 20 * @(#)raw_hy.c 7.2 (Berkeley) 08/04/88 21 */ 22 23 /* 24 * 4.3 BSD Unix kernel - NSC HYPERchannel support 25 * 26 * $Header: raw_hy.c,v 3.1 84/02/15 04:27:44 steveg Exp $ 27 * $Locker: $ 28 * 29 * Copyright (c) 1984, Tektronix Inc. 30 * All Rights Reserved 31 * 32 */ 33 34 #include "hy.h" 35 #if NHY > 0 36 37 #include "param.h" 38 #include "mbuf.h" 39 #include "socket.h" 40 #include "protosw.h" 41 #include "socketvar.h" 42 #include "errno.h" 43 44 #include "../net/if.h" 45 #include "../net/route.h" 46 #include "../net/raw_cb.h" 47 48 #include "../netinet/in.h" 49 #include "../netinet/in_systm.h" 50 #include "../netinet/in_var.h" 51 #include "if_hy.h" 52 53 /* 54 * Raw interface to HYPERchannel. 55 */ 56 57 /* 58 * Generate HYPERchannel leader and pass packet to hyoutput. 59 * The user must create a skeletal leader in order to 60 * communicate message type, message subtype, etc. 61 * We don't really check the header supplied by the user. 62 */ 63 rhy_output(m, so) 64 register struct mbuf *m; 65 struct socket *so; 66 { 67 int error = 0; 68 register struct sockaddr_in *sin; 69 register struct rawcb *rp = sotorawcb(so); 70 struct in_ifaddr *ia; 71 72 /* 73 * Verify user has supplied necessary space 74 * for the header. 75 */ 76 if ((m->m_off > MMAXOFF || m->m_len < sizeof(struct hym_hdr)) && 77 (m = m_pullup(m, sizeof(struct hym_hdr))) == 0) { 78 error = EMSGSIZE; /* XXX */ 79 goto bad; 80 } 81 82 sin = (struct sockaddr_in *)&rp->rcb_faddr; 83 /* no routing here */ 84 ia = in_iaonnetof(in_netof(sin->sin_addr)); 85 if (ia) 86 return (hyoutput(ia->ia_ifp, m, (struct sockaddr *)sin)); 87 error = ENETUNREACH; 88 bad: 89 m_freem(m); 90 return (error); 91 } 92 #endif 93