123743Skarels /* 2*24798Skarels * @(#)raw_hy.c 6.2 09/16/85 323743Skarels * 4*24798Skarels * 4.3 BSD Unix kernel - NSC HYPERchannel support 523743Skarels * 623743Skarels * $Header: raw_hy.c,v 3.1 84/02/15 04:27:44 steveg Exp $ 723743Skarels * $Locker: $ 823743Skarels * 923743Skarels * Copyright (c) 1984, Tektronix Inc. 1023743Skarels * All Rights Reserved 1123743Skarels * 1223743Skarels */ 1323743Skarels 1423743Skarels 1523743Skarels #include "param.h" 1623743Skarels #include "mbuf.h" 1723743Skarels #include "socket.h" 1823743Skarels #include "protosw.h" 1923743Skarels #include "socketvar.h" 2023743Skarels #include "errno.h" 2123743Skarels 2223743Skarels #include "../net/if.h" 2323743Skarels #include "../net/route.h" 2423743Skarels #include "../net/raw_cb.h" 2523743Skarels 26*24798Skarels #ifdef BBNNET 27*24798Skarels #define INET 28*24798Skarels #endif 2923743Skarels #include "../netinet/in.h" 3023743Skarels #include "../netinet/in_systm.h" 31*24798Skarels #include "../netinet/in_var.h" 3223743Skarels #include "if_hy.h" 3323743Skarels 3423743Skarels /* 3523743Skarels * Raw interface to HYPERchannel. 3623743Skarels */ 3723743Skarels 3823743Skarels /* 3923743Skarels * Generate HYPERchannel leader and pass packet to hyoutput. 4023743Skarels * The user must create a skeletal leader in order to 4123743Skarels * communicate message type, message subtype, etc. 4223743Skarels * We don't really check the header supplied by the user. 4323743Skarels */ 4423743Skarels rhy_output(m, so) 4523743Skarels register struct mbuf *m; 4623743Skarels struct socket *so; 4723743Skarels { 4823743Skarels struct mbuf *n; 4923743Skarels int error = 0; 5023743Skarels register struct sockaddr_in *sin; 5123743Skarels register struct rawcb *rp = sotorawcb(so); 52*24798Skarels struct in_ifaddr *ia; 5323743Skarels 5423743Skarels /* 5523743Skarels * Verify user has supplied necessary space 5623743Skarels * for the header. 5723743Skarels */ 5823743Skarels if ((m->m_off > MMAXOFF || m->m_len < sizeof(struct hym_hdr)) && 5923743Skarels (m = m_pullup(m, sizeof(struct hym_hdr))) == 0) { 6023743Skarels error = EMSGSIZE; /* XXX */ 6123743Skarels goto bad; 6223743Skarels } 6323743Skarels 6423743Skarels sin = (struct sockaddr_in *)&rp->rcb_faddr; 6523743Skarels /* no routing here */ 66*24798Skarels ia = in_iaonnetof(in_netof(sin->sin_addr)); 67*24798Skarels if (ia) 68*24798Skarels return (hyoutput(ia->ia_ifp, m, (struct sockaddr *)sin)); 6923743Skarels error = ENETUNREACH; 7023743Skarels bad: 7123743Skarels m_freem(m); 7223743Skarels return (error); 7323743Skarels } 74