| if_disc.c (147256) | if_disc.c (147611) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 13 unchanged lines hidden (view full) --- 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * From: @(#)if_loop.c 8.1 (Berkeley) 6/10/93 | 1/*- 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 13 unchanged lines hidden (view full) --- 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * From: @(#)if_loop.c 8.1 (Berkeley) 6/10/93 |
| 30 * $FreeBSD: head/sys/net/if_disc.c 147256 2005-06-10 16:49:24Z brooks $ | 30 * $FreeBSD: head/sys/net/if_disc.c 147611 2005-06-26 18:11:11Z dwmalone $ |
| 31 */ 32 33/* 34 * Discard interface driver for protocol testing and timing. 35 * (Based on the loopback.) 36 */ 37 38#include <sys/param.h> --- 58 unchanged lines hidden (view full) --- 97 ifp->if_mtu = DSMTU; 98 ifp->if_flags = IFF_LOOPBACK | IFF_MULTICAST; 99 ifp->if_ioctl = discioctl; 100 ifp->if_output = discoutput; 101 ifp->if_hdrlen = 0; 102 ifp->if_addrlen = 0; 103 ifp->if_snd.ifq_maxlen = 20; 104 if_attach(ifp); | 31 */ 32 33/* 34 * Discard interface driver for protocol testing and timing. 35 * (Based on the loopback.) 36 */ 37 38#include <sys/param.h> --- 58 unchanged lines hidden (view full) --- 97 ifp->if_mtu = DSMTU; 98 ifp->if_flags = IFF_LOOPBACK | IFF_MULTICAST; 99 ifp->if_ioctl = discioctl; 100 ifp->if_output = discoutput; 101 ifp->if_hdrlen = 0; 102 ifp->if_addrlen = 0; 103 ifp->if_snd.ifq_maxlen = 20; 104 if_attach(ifp); |
| 105 bpfattach(ifp, DLT_NULL, sizeof(u_int)); | 105 bpfattach(ifp, DLT_NULL, sizeof(u_int32_t)); |
| 106 mtx_lock(&disc_mtx); 107 LIST_INSERT_HEAD(&disc_softc_list, sc, sc_list); 108 mtx_unlock(&disc_mtx); 109 110 return (0); 111} 112 113static void --- 57 unchanged lines hidden (view full) --- 171}; 172 173DECLARE_MODULE(if_disc, disc_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 174 175static int 176discoutput(struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst, 177 struct rtentry *rt) 178{ | 106 mtx_lock(&disc_mtx); 107 LIST_INSERT_HEAD(&disc_softc_list, sc, sc_list); 108 mtx_unlock(&disc_mtx); 109 110 return (0); 111} 112 113static void --- 57 unchanged lines hidden (view full) --- 171}; 172 173DECLARE_MODULE(if_disc, disc_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 174 175static int 176discoutput(struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst, 177 struct rtentry *rt) 178{ |
| 179 u_int32_t af; |
|
| 179 180 M_ASSERTPKTHDR(m); 181 | 180 181 M_ASSERTPKTHDR(m); 182 |
| 182 /* BPF write needs to be handled specially */ | 183 /* BPF writes need to be handled specially. */ |
| 183 if (dst->sa_family == AF_UNSPEC) { | 184 if (dst->sa_family == AF_UNSPEC) { |
| 184 dst->sa_family = *(mtod(m, int *)); 185 m->m_len -= sizeof(int); 186 m->m_pkthdr.len -= sizeof(int); 187 m->m_data += sizeof(int); | 185 bcopy(dst->sa_data, &af, sizeof(af)); 186 dst->sa_family = af; |
| 188 } 189 190 if (ifp->if_bpf) { 191 u_int af = dst->sa_family; 192 bpf_mtap2(ifp->if_bpf, &af, sizeof(af), m); 193 } 194 m->m_pkthdr.rcvif = ifp; 195 --- 69 unchanged lines hidden --- | 187 } 188 189 if (ifp->if_bpf) { 190 u_int af = dst->sa_family; 191 bpf_mtap2(ifp->if_bpf, &af, sizeof(af), m); 192 } 193 m->m_pkthdr.rcvif = ifp; 194 --- 69 unchanged lines hidden --- |