| if_loop.c (235960) | if_loop.c (236170) |
|---|---|
| 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 235960 2012-05-25 02:21:17Z bz $ | 30 * $FreeBSD: head/sys/net/if_loop.c 236170 2012-05-28 09:30:13Z bz $ |
| 31 */ 32 33/* 34 * Loopback interface driver for protocol testing and timing. 35 */ 36 37#include "opt_atalk.h" 38#include "opt_inet.h" --- 48 unchanged lines hidden (view full) --- 87#define LOMTU (1024+512) 88#elif defined(LARGE_LOMTU) 89#define LOMTU 131072 90#else 91#define LOMTU 16384 92#endif 93 94#define LO_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP | CSUM_SCTP) | 31 */ 32 33/* 34 * Loopback interface driver for protocol testing and timing. 35 */ 36 37#include "opt_atalk.h" 38#include "opt_inet.h" --- 48 unchanged lines hidden (view full) --- 87#define LOMTU (1024+512) 88#elif defined(LARGE_LOMTU) 89#define LOMTU 131072 90#else 91#define LOMTU 16384 92#endif 93 94#define LO_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP | CSUM_SCTP) |
| 95#define LO_CSUM_SET (CSUM_DATA_VALID | CSUM_PSEUDO_HDR | \ | 95#define LO_CSUM_FEATURES6 (CSUM_TCP_IPV6 | CSUM_UDP_IPV6 | CSUM_SCTP) 96#define LO_CSUM_SET (CSUM_DATA_VALID | CSUM_DATA_VALID_IPV6 | \ 97 CSUM_PSEUDO_HDR | \ |
| 96 CSUM_IP_CHECKED | CSUM_IP_VALID | \ 97 CSUM_SCTP_VALID) 98 99int loioctl(struct ifnet *, u_long, caddr_t); 100static void lortrequest(int, struct rtentry *, struct rt_addrinfo *); 101int looutput(struct ifnet *ifp, struct mbuf *m, 102 struct sockaddr *dst, struct route *ro); 103static int lo_clone_create(struct if_clone *, int, caddr_t); --- 34 unchanged lines hidden (view full) --- 138 return (ENOSPC); 139 140 if_initname(ifp, ifc->ifc_name, unit); 141 ifp->if_mtu = LOMTU; 142 ifp->if_flags = IFF_LOOPBACK | IFF_MULTICAST; 143 ifp->if_ioctl = loioctl; 144 ifp->if_output = looutput; 145 ifp->if_snd.ifq_maxlen = ifqmaxlen; | 98 CSUM_IP_CHECKED | CSUM_IP_VALID | \ 99 CSUM_SCTP_VALID) 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); --- 34 unchanged lines hidden (view full) --- 140 return (ENOSPC); 141 142 if_initname(ifp, ifc->ifc_name, unit); 143 ifp->if_mtu = LOMTU; 144 ifp->if_flags = IFF_LOOPBACK | IFF_MULTICAST; 145 ifp->if_ioctl = loioctl; 146 ifp->if_output = looutput; 147 ifp->if_snd.ifq_maxlen = ifqmaxlen; |
| 146 ifp->if_capabilities = ifp->if_capenable = IFCAP_HWCSUM; 147 ifp->if_hwassist = LO_CSUM_FEATURES; | 148 ifp->if_capabilities = ifp->if_capenable = 149 IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6; 150 ifp->if_hwassist = LO_CSUM_FEATURES | LO_CSUM_FEATURES6; |
| 148 if_attach(ifp); 149 bpfattach(ifp, DLT_NULL, sizeof(u_int32_t)); 150 if (V_loif == NULL) 151 V_loif = ifp; 152 153 return (0); 154} 155 --- 86 unchanged lines hidden (view full) --- 242 if (dst->sa_family == AF_UNSPEC) { 243 bcopy(dst->sa_data, &af, sizeof(af)); 244 dst->sa_family = af; 245 } 246 247#if 1 /* XXX */ 248 switch (dst->sa_family) { 249 case AF_INET: | 151 if_attach(ifp); 152 bpfattach(ifp, DLT_NULL, sizeof(u_int32_t)); 153 if (V_loif == NULL) 154 V_loif = ifp; 155 156 return (0); 157} 158 --- 86 unchanged lines hidden (view full) --- 245 if (dst->sa_family == AF_UNSPEC) { 246 bcopy(dst->sa_data, &af, sizeof(af)); 247 dst->sa_family = af; 248 } 249 250#if 1 /* XXX */ 251 switch (dst->sa_family) { 252 case AF_INET: |
| 250 case AF_INET6: | |
| 251 if (ifp->if_capenable & IFCAP_RXCSUM) { 252 m->m_pkthdr.csum_data = 0xffff; 253 m->m_pkthdr.csum_flags = LO_CSUM_SET; 254 } 255 m->m_pkthdr.csum_flags &= ~LO_CSUM_FEATURES; | 253 if (ifp->if_capenable & IFCAP_RXCSUM) { 254 m->m_pkthdr.csum_data = 0xffff; 255 m->m_pkthdr.csum_flags = LO_CSUM_SET; 256 } 257 m->m_pkthdr.csum_flags &= ~LO_CSUM_FEATURES; |
| 258 break; 259 case AF_INET6: 260 if (ifp->if_capenable & IFCAP_RXCSUM_IPV6) { 261 m->m_pkthdr.csum_data = 0xffff; 262 m->m_pkthdr.csum_flags = LO_CSUM_SET; 263 } 264 m->m_pkthdr.csum_flags &= ~LO_CSUM_FEATURES6; 265 break; |
|
| 256 case AF_IPX: 257 case AF_APPLETALK: 258 break; 259 default: 260 printf("looutput: af=%d unexpected\n", dst->sa_family); 261 m_freem(m); 262 return (EAFNOSUPPORT); 263 } --- 167 unchanged lines hidden (view full) --- 431 break; 432 433 case SIOCSIFCAP: 434 mask = ifp->if_capenable ^ ifr->ifr_reqcap; 435 if ((mask & IFCAP_RXCSUM) != 0) 436 ifp->if_capenable ^= IFCAP_RXCSUM; 437 if ((mask & IFCAP_TXCSUM) != 0) 438 ifp->if_capenable ^= IFCAP_TXCSUM; | 266 case AF_IPX: 267 case AF_APPLETALK: 268 break; 269 default: 270 printf("looutput: af=%d unexpected\n", dst->sa_family); 271 m_freem(m); 272 return (EAFNOSUPPORT); 273 } --- 167 unchanged lines hidden (view full) --- 441 break; 442 443 case SIOCSIFCAP: 444 mask = ifp->if_capenable ^ ifr->ifr_reqcap; 445 if ((mask & IFCAP_RXCSUM) != 0) 446 ifp->if_capenable ^= IFCAP_RXCSUM; 447 if ((mask & IFCAP_TXCSUM) != 0) 448 ifp->if_capenable ^= IFCAP_TXCSUM; |
| 449 if ((mask & IFCAP_RXCSUM_IPV6) != 0) 450 ifp->if_capenable ^= IFCAP_RXCSUM_IPV6; 451 if ((mask & IFCAP_TXCSUM_IPV6) != 0) 452 ifp->if_capenable ^= IFCAP_TXCSUM_IPV6; 453 ifp->if_hwassist = 0; |
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| 439 if (ifp->if_capenable & IFCAP_TXCSUM) 440 ifp->if_hwassist = LO_CSUM_FEATURES; | 454 if (ifp->if_capenable & IFCAP_TXCSUM) 455 ifp->if_hwassist = LO_CSUM_FEATURES; |
| 441 else 442 ifp->if_hwassist = 0; | 456 if (ifp->if_capenable & IFCAP_TXCSUM_IPV6) 457 ifp->if_hwassist |= LO_CSUM_FEATURES6; |
| 443 break; 444 445 default: 446 error = EINVAL; 447 } 448 return (error); 449} | 458 break; 459 460 default: 461 error = EINVAL; 462 } 463 return (error); 464} |