1 /* 2 * @(#)raw_hy.c 6.2 09/16/85 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 15 #include "param.h" 16 #include "mbuf.h" 17 #include "socket.h" 18 #include "protosw.h" 19 #include "socketvar.h" 20 #include "errno.h" 21 22 #include "../net/if.h" 23 #include "../net/route.h" 24 #include "../net/raw_cb.h" 25 26 #ifdef BBNNET 27 #define INET 28 #endif 29 #include "../netinet/in.h" 30 #include "../netinet/in_systm.h" 31 #include "../netinet/in_var.h" 32 #include "if_hy.h" 33 34 /* 35 * Raw interface to HYPERchannel. 36 */ 37 38 /* 39 * Generate HYPERchannel leader and pass packet to hyoutput. 40 * The user must create a skeletal leader in order to 41 * communicate message type, message subtype, etc. 42 * We don't really check the header supplied by the user. 43 */ 44 rhy_output(m, so) 45 register struct mbuf *m; 46 struct socket *so; 47 { 48 struct mbuf *n; 49 int error = 0; 50 register struct sockaddr_in *sin; 51 register struct rawcb *rp = sotorawcb(so); 52 struct in_ifaddr *ia; 53 54 /* 55 * Verify user has supplied necessary space 56 * for the header. 57 */ 58 if ((m->m_off > MMAXOFF || m->m_len < sizeof(struct hym_hdr)) && 59 (m = m_pullup(m, sizeof(struct hym_hdr))) == 0) { 60 error = EMSGSIZE; /* XXX */ 61 goto bad; 62 } 63 64 sin = (struct sockaddr_in *)&rp->rcb_faddr; 65 /* no routing here */ 66 ia = in_iaonnetof(in_netof(sin->sin_addr)); 67 if (ia) 68 return (hyoutput(ia->ia_ifp, m, (struct sockaddr *)sin)); 69 error = ENETUNREACH; 70 bad: 71 m_freem(m); 72 return (error); 73 } 74