| if_loop.c (108041) | if_loop.c (108466) |
|---|---|
| 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 --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)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 --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)if_loop.c 8.2 (Berkeley) 1/9/95 |
| 34 * $FreeBSD: head/sys/net/if_loop.c 108041 2002-12-18 15:34:17Z rwatson $ | 34 * $FreeBSD: head/sys/net/if_loop.c 108466 2002-12-30 20:22:40Z sam $ |
| 35 */ 36 37/* 38 * Loopback interface driver for protocol testing and timing. 39 */ 40 41#include "opt_atalk.h" 42#include "opt_inet.h" --- 166 unchanged lines hidden (view full) --- 209 * KAME requires that the packet to be contiguous on the 210 * mbuf. We need to make that sure. 211 * this kind of code should be avoided. 212 * XXX: fails to join if interface MTU > MCLBYTES. jumbogram? 213 */ 214 if (m && m->m_next != NULL && m->m_pkthdr.len < MCLBYTES) { 215 struct mbuf *n; 216 | 35 */ 36 37/* 38 * Loopback interface driver for protocol testing and timing. 39 */ 40 41#include "opt_atalk.h" 42#include "opt_inet.h" --- 166 unchanged lines hidden (view full) --- 209 * KAME requires that the packet to be contiguous on the 210 * mbuf. We need to make that sure. 211 * this kind of code should be avoided. 212 * XXX: fails to join if interface MTU > MCLBYTES. jumbogram? 213 */ 214 if (m && m->m_next != NULL && m->m_pkthdr.len < MCLBYTES) { 215 struct mbuf *n; 216 |
| 217 /* XXX MT_HEADER should be m->m_type */ |
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| 217 MGETHDR(n, M_DONTWAIT, MT_HEADER); 218 if (!n) 219 goto contiguousfail; | 218 MGETHDR(n, M_DONTWAIT, MT_HEADER); 219 if (!n) 220 goto contiguousfail; |
| 220 MCLGET(n, M_DONTWAIT); 221 if (! (n->m_flags & M_EXT)) { 222 m_freem(n); 223 goto contiguousfail; 224 } 225 226 m_copydata(m, 0, m->m_pkthdr.len, mtod(n, caddr_t)); 227 n->m_pkthdr = m->m_pkthdr; 228 n->m_len = m->m_pkthdr.len; 229 SLIST_INIT(&m->m_pkthdr.tags); | 221 M_MOVE_PKTHDR(n, m); |
| 230#ifdef MAC 231 /* 232 * XXXMAC: Once we put labels in tags and proper 233 * primitives are used for relocating mbuf header 234 * data, this will no longer be required. 235 */ 236 m->m_pkthdr.label.l_flags &= ~MAC_FLAG_INITIALIZED; 237#endif | 222#ifdef MAC 223 /* 224 * XXXMAC: Once we put labels in tags and proper 225 * primitives are used for relocating mbuf header 226 * data, this will no longer be required. 227 */ 228 m->m_pkthdr.label.l_flags &= ~MAC_FLAG_INITIALIZED; 229#endif |
| 230 MCLGET(n, M_DONTWAIT); 231 if (! (n->m_flags & M_EXT)) { 232 m_freem(n); 233 goto contiguousfail; 234 } 235 236 m_copydata(m, 0, m->m_pkthdr.len, mtod(n, caddr_t)); 237 n->m_len = m->m_pkthdr.len; |
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| 238 m_freem(m); 239 m = n; 240 } 241 if (0) { 242contiguousfail: 243 printf("looutput: mbuf allocation failed\n"); 244 } 245 --- 213 unchanged lines hidden --- | 238 m_freem(m); 239 m = n; 240 } 241 if (0) { 242contiguousfail: 243 printf("looutput: mbuf allocation failed\n"); 244 } 245 --- 213 unchanged lines hidden --- |