static void fib4_rte_to_nh_extended(struct rtentry *rte, struct in_addr dst, uint32_t flags, struct nhop4_extended *pnh4) { struct sockaddr_in *gw; struct in_ifaddr *ia; if ((flags & NHR_IFAIF) != 0) pnh4->nh_ifp = rte->rt_ifa->ifa_ifp; else pnh4->nh_ifp = rte->rt_ifp; pnh4->nh_mtu = min(rte->rt_mtu, rte->rt_ifp->if_mtu); if (rte->rt_flags & RTF_GATEWAY) { gw = (struct sockaddr_in *)rte->rt_gateway; pnh4->nh_addr = gw->sin_addr; } else pnh4->nh_addr = dst; /* Set flags */ pnh4->nh_flags = fib_rte_to_nh_flags(rte->rt_flags); gw = (struct sockaddr_in *)rt_key(rte); if (gw->sin_addr.s_addr == 0) pnh4->nh_flags |= NHF_DEFAULT; /* XXX: Set RTF_BROADCAST if GW address is broadcast */ ia = ifatoia(rte->rt_ifa); pnh4->nh_src = IA_SIN(ia)->sin_addr; }
static void fib6_rte_to_nh_basic(struct rtentry *rte, const struct in6_addr *dst, uint32_t flags, struct nhop6_basic *pnh6) { struct sockaddr_in6 *gw; /* Do explicit nexthop zero unless we're copying it */ memset(pnh6, 0, sizeof(*pnh6)); if ((flags & NHR_IFAIF) != 0) pnh6->nh_ifp = fib6_get_ifaifp(rte); else pnh6->nh_ifp = rte->rt_ifp; pnh6->nh_mtu = min(rte->rt_mtu, IN6_LINKMTU(rte->rt_ifp)); if (rte->rt_flags & RTF_GATEWAY) { gw = (struct sockaddr_in6 *)rte->rt_gateway; pnh6->nh_addr = gw->sin6_addr; in6_clearscope(&pnh6->nh_addr); } else pnh6->nh_addr = *dst; /* Set flags */ pnh6->nh_flags = fib_rte_to_nh_flags(rte->rt_flags); gw = (struct sockaddr_in6 *)rt_key(rte); if (IN6_IS_ADDR_UNSPECIFIED(&gw->sin6_addr)) pnh6->nh_flags |= NHF_DEFAULT; }
static void fib4_rte_to_nh_basic(struct rtentry *rte, struct in_addr dst, uint32_t flags, struct nhop4_basic *pnh4) { struct sockaddr_in *gw; if ((flags & NHR_IFAIF) != 0) pnh4->nh_ifp = rte->rt_ifa->ifa_ifp; else pnh4->nh_ifp = rte->rt_ifp; pnh4->nh_mtu = min(rte->rt_mtu, rte->rt_ifp->if_mtu); if (rte->rt_flags & RTF_GATEWAY) { gw = (struct sockaddr_in *)rte->rt_gateway; pnh4->nh_addr = gw->sin_addr; } else pnh4->nh_addr = dst; /* Set flags */ pnh4->nh_flags = fib_rte_to_nh_flags(rte->rt_flags); gw = (struct sockaddr_in *)rt_key(rte); if (gw->sin_addr.s_addr == 0) pnh4->nh_flags |= NHF_DEFAULT; /* TODO: Handle RTF_BROADCAST here */ }