1 /* 2 * @(#)raw_hy.c 7.1 06/05/86 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 73