| in_gif.c (269054) | in_gif.c (269699) |
|---|---|
| 1/* $KAME: in_gif.c,v 1.54 2001/05/14 14:02:16 itojun Exp $ */ 2 3/*- 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions --- 16 unchanged lines hidden (view full) --- 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> | 1/* $KAME: in_gif.c,v 1.54 2001/05/14 14:02:16 itojun Exp $ */ 2 3/*- 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions --- 16 unchanged lines hidden (view full) --- 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> |
| 33__FBSDID("$FreeBSD: head/sys/netinet/in_gif.c 269054 2014-07-24 10:42:47Z hrs $"); | 33__FBSDID("$FreeBSD: head/sys/netinet/in_gif.c 269699 2014-08-08 01:57:15Z kevlo $"); |
| 34 35#include "opt_mrouting.h" 36#include "opt_inet.h" 37#include "opt_inet6.h" 38 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/socket.h> --- 34 unchanged lines hidden (view full) --- 76 77extern struct domain inetdomain; 78struct protosw in_gif_protosw = { 79 .pr_type = SOCK_RAW, 80 .pr_domain = &inetdomain, 81 .pr_protocol = 0/* IPPROTO_IPV[46] */, 82 .pr_flags = PR_ATOMIC|PR_ADDR, 83 .pr_input = in_gif_input, | 34 35#include "opt_mrouting.h" 36#include "opt_inet.h" 37#include "opt_inet6.h" 38 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/socket.h> --- 34 unchanged lines hidden (view full) --- 76 77extern struct domain inetdomain; 78struct protosw in_gif_protosw = { 79 .pr_type = SOCK_RAW, 80 .pr_domain = &inetdomain, 81 .pr_protocol = 0/* IPPROTO_IPV[46] */, 82 .pr_flags = PR_ATOMIC|PR_ADDR, 83 .pr_input = in_gif_input, |
| 84 .pr_output = (pr_output_t*)rip_output, | 84 .pr_output = (pr_output_t *)rip_output, |
| 85 .pr_ctloutput = rip_ctloutput, 86 .pr_usrreqs = &rip_usrreqs 87}; 88 89VNET_DEFINE(int, ip_gif_ttl) = GIF_TTL; 90#define V_ip_gif_ttl VNET(ip_gif_ttl) 91SYSCTL_VNET_INT(_net_inet_ip, IPCTL_GIF_TTL, gifttl, CTLFLAG_RW, 92 &VNET_NAME(ip_gif_ttl), 0, ""); --- 172 unchanged lines hidden (view full) --- 265 sc->gif_ro.ro_rt != NULL) { 266 RTFREE(sc->gif_ro.ro_rt); 267 sc->gif_ro.ro_rt = NULL; 268 } 269 270 return (error); 271} 272 | 85 .pr_ctloutput = rip_ctloutput, 86 .pr_usrreqs = &rip_usrreqs 87}; 88 89VNET_DEFINE(int, ip_gif_ttl) = GIF_TTL; 90#define V_ip_gif_ttl VNET(ip_gif_ttl) 91SYSCTL_VNET_INT(_net_inet_ip, IPCTL_GIF_TTL, gifttl, CTLFLAG_RW, 92 &VNET_NAME(ip_gif_ttl), 0, ""); --- 172 unchanged lines hidden (view full) --- 265 sc->gif_ro.ro_rt != NULL) { 266 RTFREE(sc->gif_ro.ro_rt); 267 sc->gif_ro.ro_rt = NULL; 268 } 269 270 return (error); 271} 272 |
| 273void 274in_gif_input(struct mbuf *m, int off) | 273int 274in_gif_input(struct mbuf **mp, int *offp, int proto) |
| 275{ | 275{ |
| 276 struct mbuf *m; |
|
| 276 struct ifnet *gifp = NULL; 277 struct gif_softc *sc; 278 struct ip *ip; 279 int af; | 277 struct ifnet *gifp = NULL; 278 struct gif_softc *sc; 279 struct ip *ip; 280 int af; |
| 281 int off; |
|
| 280 u_int8_t otos; | 282 u_int8_t otos; |
| 281 int proto; | |
| 282 | 283 |
| 284 m = *mp; |
|
| 283 ip = mtod(m, struct ip *); | 285 ip = mtod(m, struct ip *); |
| 284 proto = ip->ip_p; | 286 off = *offp; 287 *mp = NULL; |
| 285 286 sc = (struct gif_softc *)encap_getarg(m); 287 if (sc == NULL) { 288 m_freem(m); 289 KMOD_IPSTAT_INC(ips_nogif); | 288 289 sc = (struct gif_softc *)encap_getarg(m); 290 if (sc == NULL) { 291 m_freem(m); 292 KMOD_IPSTAT_INC(ips_nogif); |
| 290 return; | 293 return (IPPROTO_DONE); |
| 291 } 292 293 gifp = GIF2IFP(sc); 294 if (gifp == NULL || (gifp->if_flags & IFF_UP) == 0) { 295 m_freem(m); 296 KMOD_IPSTAT_INC(ips_nogif); | 294 } 295 296 gifp = GIF2IFP(sc); 297 if (gifp == NULL || (gifp->if_flags & IFF_UP) == 0) { 298 m_freem(m); 299 KMOD_IPSTAT_INC(ips_nogif); |
| 297 return; | 300 return (IPPROTO_DONE); |
| 298 } 299 300 otos = ip->ip_tos; 301 m_adj(m, off); 302 303 switch (proto) { 304#ifdef INET 305 case IPPROTO_IPV4: 306 { 307 struct ip *ip; 308 af = AF_INET; 309 if (m->m_len < sizeof(*ip)) { 310 m = m_pullup(m, sizeof(*ip)); 311 if (!m) | 301 } 302 303 otos = ip->ip_tos; 304 m_adj(m, off); 305 306 switch (proto) { 307#ifdef INET 308 case IPPROTO_IPV4: 309 { 310 struct ip *ip; 311 af = AF_INET; 312 if (m->m_len < sizeof(*ip)) { 313 m = m_pullup(m, sizeof(*ip)); 314 if (!m) |
| 312 return; | 315 return (IPPROTO_DONE); |
| 313 } 314 ip = mtod(m, struct ip *); 315 if (ip_ecn_egress((gifp->if_flags & IFF_LINK1) ? 316 ECN_ALLOWED : ECN_NOCARE, 317 &otos, &ip->ip_tos) == 0) { 318 m_freem(m); | 316 } 317 ip = mtod(m, struct ip *); 318 if (ip_ecn_egress((gifp->if_flags & IFF_LINK1) ? 319 ECN_ALLOWED : ECN_NOCARE, 320 &otos, &ip->ip_tos) == 0) { 321 m_freem(m); |
| 319 return; | 322 return (IPPROTO_DONE); |
| 320 } 321 break; 322 } 323#endif 324#ifdef INET6 325 case IPPROTO_IPV6: 326 { 327 struct ip6_hdr *ip6; 328 u_int8_t itos, oitos; 329 330 af = AF_INET6; 331 if (m->m_len < sizeof(*ip6)) { 332 m = m_pullup(m, sizeof(*ip6)); 333 if (!m) | 323 } 324 break; 325 } 326#endif 327#ifdef INET6 328 case IPPROTO_IPV6: 329 { 330 struct ip6_hdr *ip6; 331 u_int8_t itos, oitos; 332 333 af = AF_INET6; 334 if (m->m_len < sizeof(*ip6)) { 335 m = m_pullup(m, sizeof(*ip6)); 336 if (!m) |
| 334 return; | 337 return (IPPROTO_DONE); |
| 335 } 336 ip6 = mtod(m, struct ip6_hdr *); 337 itos = oitos = (ntohl(ip6->ip6_flow) >> 20) & 0xff; 338 if (ip_ecn_egress((gifp->if_flags & IFF_LINK1) ? 339 ECN_ALLOWED : ECN_NOCARE, 340 &otos, &itos) == 0) { 341 m_freem(m); | 338 } 339 ip6 = mtod(m, struct ip6_hdr *); 340 itos = oitos = (ntohl(ip6->ip6_flow) >> 20) & 0xff; 341 if (ip_ecn_egress((gifp->if_flags & IFF_LINK1) ? 342 ECN_ALLOWED : ECN_NOCARE, 343 &otos, &itos) == 0) { 344 m_freem(m); |
| 342 return; | 345 return (IPPROTO_DONE); |
| 343 } 344 if (itos != oitos) { 345 ip6->ip6_flow &= ~htonl(0xff << 20); 346 ip6->ip6_flow |= htonl((u_int32_t)itos << 20); 347 } 348 break; 349 } 350#endif /* INET6 */ 351 case IPPROTO_ETHERIP: 352 af = AF_LINK; 353 break; 354 355 default: 356 KMOD_IPSTAT_INC(ips_nogif); 357 m_freem(m); | 346 } 347 if (itos != oitos) { 348 ip6->ip6_flow &= ~htonl(0xff << 20); 349 ip6->ip6_flow |= htonl((u_int32_t)itos << 20); 350 } 351 break; 352 } 353#endif /* INET6 */ 354 case IPPROTO_ETHERIP: 355 af = AF_LINK; 356 break; 357 358 default: 359 KMOD_IPSTAT_INC(ips_nogif); 360 m_freem(m); |
| 358 return; | 361 return (IPPROTO_DONE); |
| 359 } 360 gif_input(m, af, gifp); | 362 } 363 gif_input(m, af, gifp); |
| 361 return; | 364 return (IPPROTO_DONE); |
| 362} 363 364/* 365 * validate outer address. 366 */ 367static int 368gif_validate4(const struct ip *ip, struct gif_softc *sc, struct ifnet *ifp) 369{ --- 101 unchanged lines hidden --- | 365} 366 367/* 368 * validate outer address. 369 */ 370static int 371gif_validate4(const struct ip *ip, struct gif_softc *sc, struct ifnet *ifp) 372{ --- 101 unchanged lines hidden --- |