| ip_gre.c (125226) | ip_gre.c (127307) |
|---|---|
| 1/* $NetBSD: ip_gre.c,v 1.29 2003/09/05 23:02:43 itojun Exp $ */ | 1/* $NetBSD: ip_gre.c,v 1.29 2003/09/05 23:02:43 itojun Exp $ */ |
| 2/* $FreeBSD: head/sys/netinet/ip_gre.c 125226 2004-01-30 09:03:01Z sobomax $ */ | 2/* $FreeBSD: head/sys/netinet/ip_gre.c 127307 2004-03-22 16:04:43Z rwatson $ */ |
| 3 4/* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Heiko W.Rupp <hwr@pilhuhn.de> 10 * --- 298 unchanged lines hidden (view full) --- 309 310 m->m_pkthdr.rcvif = &sc->sc_if; 311 312 netisr_dispatch(NETISR_IP, m); 313} 314 315/* 316 * Find the gre interface associated with our src/dst/proto set. | 3 4/* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Heiko W.Rupp <hwr@pilhuhn.de> 10 * --- 298 unchanged lines hidden (view full) --- 309 310 m->m_pkthdr.rcvif = &sc->sc_if; 311 312 netisr_dispatch(NETISR_IP, m); 313} 314 315/* 316 * Find the gre interface associated with our src/dst/proto set. |
| 317 * 318 * XXXRW: Need some sort of drain/refcount mechanism so that the softc 319 * reference remains valid after it's returned from gre_lookup(). Right 320 * now, I'm thinking it should be reference-counted with a gre_dropref() 321 * when the caller is done with the softc. This is complicated by how 322 * to handle destroying the gre softc; probably using a gre_drain() in 323 * in_gre.c during destroy. |
|
| 317 */ 318static struct gre_softc * 319gre_lookup(m, proto) 320 struct mbuf *m; 321 u_int8_t proto; 322{ 323 struct ip *ip = mtod(m, struct ip *); 324 struct gre_softc *sc; 325 | 324 */ 325static struct gre_softc * 326gre_lookup(m, proto) 327 struct mbuf *m; 328 u_int8_t proto; 329{ 330 struct ip *ip = mtod(m, struct ip *); 331 struct gre_softc *sc; 332 |
| 333 mtx_lock(&gre_mtx); |
|
| 326 for (sc = LIST_FIRST(&gre_softc_list); sc != NULL; 327 sc = LIST_NEXT(sc, sc_list)) { 328 if ((sc->g_dst.s_addr == ip->ip_src.s_addr) && 329 (sc->g_src.s_addr == ip->ip_dst.s_addr) && 330 (sc->g_proto == proto) && | 334 for (sc = LIST_FIRST(&gre_softc_list); sc != NULL; 335 sc = LIST_NEXT(sc, sc_list)) { 336 if ((sc->g_dst.s_addr == ip->ip_src.s_addr) && 337 (sc->g_src.s_addr == ip->ip_dst.s_addr) && 338 (sc->g_proto == proto) && |
| 331 ((sc->sc_if.if_flags & IFF_UP) != 0)) | 339 ((sc->sc_if.if_flags & IFF_UP) != 0)) { 340 mtx_unlock(&gre_mtx); |
| 332 return (sc); | 341 return (sc); |
| 342 } |
|
| 333 } | 343 } |
| 344 mtx_unlock(&gre_mtx); |
|
| 334 335 return (NULL); 336} | 345 346 return (NULL); 347} |