| ip_output.c (262747) | ip_output.c (262763) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986, 1988, 1990, 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 --- 16 unchanged lines hidden (view full) --- 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 * @(#)ip_output.c 8.3 (Berkeley) 1/21/94 30 */ 31 32#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 1982, 1986, 1988, 1990, 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 --- 16 unchanged lines hidden (view full) --- 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 * @(#)ip_output.c 8.3 (Berkeley) 1/21/94 30 */ 31 32#include <sys/cdefs.h> |
| 33__FBSDID("$FreeBSD: head/sys/netinet/ip_output.c 262747 2014-03-04 19:49:41Z glebius $"); | 33__FBSDID("$FreeBSD: head/sys/netinet/ip_output.c 262763 2014-03-05 01:17:47Z glebius $"); |
| 34 35#include "opt_inet.h" 36#include "opt_ipfw.h" 37#include "opt_ipsec.h" 38#include "opt_mbuf_stress_test.h" 39#include "opt_mpath.h" 40#include "opt_route.h" 41#include "opt_sctp.h" --- 247 unchanged lines hidden (view full) --- 289 goto sendit; 290#endif 291 IPSTAT_INC(ips_noroute); 292 error = EHOSTUNREACH; 293 goto bad; 294 } 295 ia = ifatoia(rte->rt_ifa); 296 ifp = rte->rt_ifp; | 34 35#include "opt_inet.h" 36#include "opt_ipfw.h" 37#include "opt_ipsec.h" 38#include "opt_mbuf_stress_test.h" 39#include "opt_mpath.h" 40#include "opt_route.h" 41#include "opt_sctp.h" --- 247 unchanged lines hidden (view full) --- 289 goto sendit; 290#endif 291 IPSTAT_INC(ips_noroute); 292 error = EHOSTUNREACH; 293 goto bad; 294 } 295 ia = ifatoia(rte->rt_ifa); 296 ifp = rte->rt_ifp; |
| 297 rte->rt_rmx.rmx_pksent++; | 297 counter_u64_add(rte->rt_pksent, 1); |
| 298 if (rte->rt_flags & RTF_GATEWAY) 299 gw = (struct sockaddr_in *)rte->rt_gateway; 300 if (rte->rt_flags & RTF_HOST) 301 isbroadcast = (rte->rt_flags & RTF_BROADCAST); 302 else 303 isbroadcast = in_broadcast(gw->sin_addr, ifp); 304 } 305 /* 306 * Calculate MTU. If we have a route that is up, use that, 307 * otherwise use the interface's MTU. 308 */ 309 if (rte != NULL && (rte->rt_flags & (RTF_UP|RTF_HOST))) { 310 /* 311 * This case can happen if the user changed the MTU 312 * of an interface after enabling IP on it. Because 313 * most netifs don't keep track of routes pointing to 314 * them, there is no way for one to update all its 315 * routes when the MTU is changed. 316 */ | 298 if (rte->rt_flags & RTF_GATEWAY) 299 gw = (struct sockaddr_in *)rte->rt_gateway; 300 if (rte->rt_flags & RTF_HOST) 301 isbroadcast = (rte->rt_flags & RTF_BROADCAST); 302 else 303 isbroadcast = in_broadcast(gw->sin_addr, ifp); 304 } 305 /* 306 * Calculate MTU. If we have a route that is up, use that, 307 * otherwise use the interface's MTU. 308 */ 309 if (rte != NULL && (rte->rt_flags & (RTF_UP|RTF_HOST))) { 310 /* 311 * This case can happen if the user changed the MTU 312 * of an interface after enabling IP on it. Because 313 * most netifs don't keep track of routes pointing to 314 * them, there is no way for one to update all its 315 * routes when the MTU is changed. 316 */ |
| 317 if (rte->rt_rmx.rmx_mtu > ifp->if_mtu) 318 rte->rt_rmx.rmx_mtu = ifp->if_mtu; 319 mtu = rte->rt_rmx.rmx_mtu; | 317 if (rte->rt_mtu > ifp->if_mtu) 318 rte->rt_mtu = ifp->if_mtu; 319 mtu = rte->rt_mtu; |
| 320 } else { 321 mtu = ifp->if_mtu; 322 } 323 /* Catch a possible divide by zero later. */ 324 KASSERT(mtu > 0, ("%s: mtu %d <= 0, rte=%p (rt_flags=0x%08x) ifp=%p", 325 __func__, mtu, rte, (rte != NULL) ? rte->rt_flags : 0, ifp)); 326 if (IN_MULTICAST(ntohl(ip->ip_dst.s_addr))) { 327 m->m_flags |= M_MCAST; --- 1000 unchanged lines hidden --- | 320 } else { 321 mtu = ifp->if_mtu; 322 } 323 /* Catch a possible divide by zero later. */ 324 KASSERT(mtu > 0, ("%s: mtu %d <= 0, rte=%p (rt_flags=0x%08x) ifp=%p", 325 __func__, mtu, rte, (rte != NULL) ? rte->rt_flags : 0, ifp)); 326 if (IN_MULTICAST(ntohl(ip->ip_dst.s_addr))) { 327 m->m_flags |= M_MCAST; --- 1000 unchanged lines hidden --- |