| if_loop.c (193511) | if_loop.c (193731) |
|---|---|
| 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 * @(#)if_loop.c 8.2 (Berkeley) 1/9/95 | 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 * @(#)if_loop.c 8.2 (Berkeley) 1/9/95 |
| 30 * $FreeBSD: head/sys/net/if_loop.c 193511 2009-06-05 14:55:22Z rwatson $ | 30 * $FreeBSD: head/sys/net/if_loop.c 193731 2009-06-08 17:15:40Z zec $ |
| 31 */ 32 33/* 34 * Loopback interface driver for protocol testing and timing. 35 */ 36 37#include "opt_atalk.h" 38#include "opt_inet.h" --- 61 unchanged lines hidden (view full) --- 100 101int loioctl(struct ifnet *, u_long, caddr_t); 102static void lortrequest(int, struct rtentry *, struct rt_addrinfo *); 103int looutput(struct ifnet *ifp, struct mbuf *m, 104 struct sockaddr *dst, struct route *ro); 105static int lo_clone_create(struct if_clone *, int, caddr_t); 106static void lo_clone_destroy(struct ifnet *); 107static int vnet_loif_iattach(const void *); | 31 */ 32 33/* 34 * Loopback interface driver for protocol testing and timing. 35 */ 36 37#include "opt_atalk.h" 38#include "opt_inet.h" --- 61 unchanged lines hidden (view full) --- 100 101int loioctl(struct ifnet *, u_long, caddr_t); 102static void lortrequest(int, struct rtentry *, struct rt_addrinfo *); 103int looutput(struct ifnet *ifp, struct mbuf *m, 104 struct sockaddr *dst, struct route *ro); 105static int lo_clone_create(struct if_clone *, int, caddr_t); 106static void lo_clone_destroy(struct ifnet *); 107static int vnet_loif_iattach(const void *); |
| 108#ifdef VIMAGE 109static int vnet_loif_idetach(const void *); 110#endif |
|
| 108 109#ifdef VIMAGE_GLOBALS 110struct ifnet *loif; /* Used externally */ 111#endif 112 113#ifdef VIMAGE 114MALLOC_DEFINE(M_LO_CLONER, "lo_cloner", "lo_cloner"); 115#endif 116 117#ifndef VIMAGE_GLOBALS 118static const vnet_modinfo_t vnet_loif_modinfo = { 119 .vmi_id = VNET_MOD_LOIF, 120 .vmi_dependson = VNET_MOD_IF_CLONE, 121 .vmi_name = "loif", | 111 112#ifdef VIMAGE_GLOBALS 113struct ifnet *loif; /* Used externally */ 114#endif 115 116#ifdef VIMAGE 117MALLOC_DEFINE(M_LO_CLONER, "lo_cloner", "lo_cloner"); 118#endif 119 120#ifndef VIMAGE_GLOBALS 121static const vnet_modinfo_t vnet_loif_modinfo = { 122 .vmi_id = VNET_MOD_LOIF, 123 .vmi_dependson = VNET_MOD_IF_CLONE, 124 .vmi_name = "loif", |
| 122 .vmi_iattach = vnet_loif_iattach | 125 .vmi_iattach = vnet_loif_iattach, 126#ifdef VIMAGE 127 .vmi_idetach = vnet_loif_idetach 128#endif |
| 123}; 124#endif /* !VIMAGE_GLOBALS */ 125 126IFC_SIMPLE_DECLARE(lo, 1); 127 128static void 129lo_clone_destroy(struct ifnet *ifp) 130{ | 129}; 130#endif /* !VIMAGE_GLOBALS */ 131 132IFC_SIMPLE_DECLARE(lo, 1); 133 134static void 135lo_clone_destroy(struct ifnet *ifp) 136{ |
| 131#ifdef INVARIANTS 132 INIT_VNET_NET(ifp->if_vnet); 133#endif | |
| 134 | 137 |
| 138#ifndef VIMAGE |
|
| 135 /* XXX: destroying lo0 will lead to panics. */ 136 KASSERT(V_loif != ifp, ("%s: destroying lo0", __func__)); | 139 /* XXX: destroying lo0 will lead to panics. */ 140 KASSERT(V_loif != ifp, ("%s: destroying lo0", __func__)); |
| 141#endif |
|
| 137 138 bpfdetach(ifp); 139 if_detach(ifp); 140 if_free(ifp); 141} 142 143static int 144lo_clone_create(struct if_clone *ifc, int unit, caddr_t params) --- 16 unchanged lines hidden (view full) --- 161 if_attach(ifp); 162 bpfattach(ifp, DLT_NULL, sizeof(u_int32_t)); 163 if (V_loif == NULL) 164 V_loif = ifp; 165 166 return (0); 167} 168 | 142 143 bpfdetach(ifp); 144 if_detach(ifp); 145 if_free(ifp); 146} 147 148static int 149lo_clone_create(struct if_clone *ifc, int unit, caddr_t params) --- 16 unchanged lines hidden (view full) --- 166 if_attach(ifp); 167 bpfattach(ifp, DLT_NULL, sizeof(u_int32_t)); 168 if (V_loif == NULL) 169 V_loif = ifp; 170 171 return (0); 172} 173 |
| 169static int vnet_loif_iattach(const void *unused __unused) | 174static int 175vnet_loif_iattach(const void *unused __unused) |
| 170{ 171 INIT_VNET_NET(curvnet); 172 173 V_loif = NULL; 174 175#ifdef VIMAGE 176 V_lo_cloner = malloc(sizeof(*V_lo_cloner), M_LO_CLONER, 177 M_WAITOK | M_ZERO); | 176{ 177 INIT_VNET_NET(curvnet); 178 179 V_loif = NULL; 180 181#ifdef VIMAGE 182 V_lo_cloner = malloc(sizeof(*V_lo_cloner), M_LO_CLONER, 183 M_WAITOK | M_ZERO); |
| 184 V_lo_cloner_data = malloc(sizeof(*V_lo_cloner_data), M_LO_CLONER, 185 M_WAITOK | M_ZERO); |
|
| 178 bcopy(&lo_cloner, V_lo_cloner, sizeof(*V_lo_cloner)); | 186 bcopy(&lo_cloner, V_lo_cloner, sizeof(*V_lo_cloner)); |
| 187 bcopy(lo_cloner.ifc_data, V_lo_cloner_data, sizeof(*V_lo_cloner_data)); 188 V_lo_cloner->ifc_data = V_lo_cloner_data; |
|
| 179 if_clone_attach(V_lo_cloner); 180#else 181 if_clone_attach(&lo_cloner); 182#endif 183 return (0); 184} 185 | 189 if_clone_attach(V_lo_cloner); 190#else 191 if_clone_attach(&lo_cloner); 192#endif 193 return (0); 194} 195 |
| 196#ifdef VIMAGE |
|
| 186static int | 197static int |
| 198vnet_loif_idetach(const void *unused __unused) 199{ 200 INIT_VNET_NET(curvnet); 201 202 if_clone_detach(V_lo_cloner); 203 free(V_lo_cloner, M_LO_CLONER); 204 free(V_lo_cloner_data, M_LO_CLONER); 205 V_loif = NULL; 206 207 return (0); 208} 209#endif 210 211static int |
|
| 187loop_modevent(module_t mod, int type, void *data) 188{ 189 190 switch (type) { 191 case MOD_LOAD: 192#ifndef VIMAGE_GLOBALS 193 vnet_mod_register(&vnet_loif_modinfo); 194#else --- 263 unchanged lines hidden --- | 212loop_modevent(module_t mod, int type, void *data) 213{ 214 215 switch (type) { 216 case MOD_LOAD: 217#ifndef VIMAGE_GLOBALS 218 vnet_mod_register(&vnet_loif_modinfo); 219#else --- 263 unchanged lines hidden --- |