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 * %sccs.include.redist.c% 9 * 10 * @(#)raw_hy.c 7.4 (Berkeley) 12/16/90 11 */ 12 13 /* 14 * 4.3 BSD Unix kernel - NSC HYPERchannel support 15 * 16 * $Header: raw_hy.c,v 3.1 84/02/15 04:27:44 steveg Exp $ 17 * $Locker: $ 18 * 19 * Copyright (c) 1984, Tektronix Inc. 20 * All Rights Reserved 21 * 22 */ 23 24 #include "hy.h" 25 #if NHY > 0 26 27 #include "sys/param.h" 28 #include "sys/mbuf.h" 29 #include "sys/socket.h" 30 #include "sys/protosw.h" 31 #include "sys/socketvar.h" 32 #include "sys/errno.h" 33 34 #include "net/if.h" 35 #include "net/route.h" 36 #include "net/raw_cb.h" 37 38 #include "netinet/in.h" 39 #include "netinet/in_systm.h" 40 #include "netinet/in_var.h" 41 #include "if_hy.h" 42 43 /* 44 * Raw interface to HYPERchannel. 45 */ 46 47 /* 48 * Generate HYPERchannel leader and pass packet to hyoutput. 49 * The user must create a skeletal leader in order to 50 * communicate message type, message subtype, etc. 51 * We don't really check the header supplied by the user. 52 */ 53 rhy_output(m, so) 54 register struct mbuf *m; 55 struct socket *so; 56 { 57 int error = 0; 58 register struct sockaddr_in *sin; 59 register struct rawcb *rp = sotorawcb(so); 60 struct in_ifaddr *ia; 61 62 /* 63 * Verify user has supplied necessary space 64 * for the header. 65 */ 66 if ((m->m_off > MMAXOFF || m->m_len < sizeof(struct hym_hdr)) && 67 (m = m_pullup(m, sizeof(struct hym_hdr))) == 0) { 68 error = EMSGSIZE; /* XXX */ 69 goto bad; 70 } 71 72 sin = (struct sockaddr_in *)&rp->rcb_faddr; 73 /* no routing here */ 74 ia = in_iaonnetof(in_netof(sin->sin_addr)); 75 if (ia) 76 return (hyoutput(ia->ia_ifp, m, (struct sockaddr *)sin)); 77 error = ENETUNREACH; 78 bad: 79 m_freem(m); 80 return (error); 81 } 82 #endif 83