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-rw-r--r--sys/net/route.c65
1 files changed, 36 insertions, 29 deletions
diff --git a/sys/net/route.c b/sys/net/route.c
index 657e507a4e4..b42c51698a4 100644
--- a/sys/net/route.c
+++ b/sys/net/route.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: route.c,v 1.380 2019/02/10 22:32:26 dlg Exp $ */
+/* $OpenBSD: route.c,v 1.381 2019/02/13 23:47:42 dlg Exp $ */
/* $NetBSD: route.c,v 1.14 1996/02/13 22:00:46 christos Exp $ */
/*
@@ -1030,13 +1030,13 @@ rt_maskedcopy(struct sockaddr *src, struct sockaddr *dst,
}
int
-rt_ifa_add(struct ifaddr *ifa, int flags, struct sockaddr *dst)
+rt_ifa_add(struct ifaddr *ifa, int flags, struct sockaddr *dst,
+ unsigned int rdomain)
{
struct ifnet *ifp = ifa->ifa_ifp;
struct rtentry *rt;
struct sockaddr_rtlabel sa_rl;
struct rt_addrinfo info;
- unsigned int rtableid = ifp->if_rdomain;
uint8_t prio = ifp->if_priority + RTP_STATIC;
int error;
@@ -1048,14 +1048,16 @@ rt_ifa_add(struct ifaddr *ifa, int flags, struct sockaddr *dst)
info.rti_info[RTAX_GATEWAY] = sdltosa(ifp->if_sadl);
else
info.rti_info[RTAX_GATEWAY] = ifa->ifa_addr;
- info.rti_info[RTAX_LABEL] = rtlabel_id2sa(ifp->if_rtlabelid, &sa_rl);
+
+ KASSERT(rdomain == rtable_l2(rdomain));
+ if (rdomain == rtable_l2(ifp->if_rtlabelid)) {
+ info.rti_info[RTAX_LABEL] =
+ rtlabel_id2sa(ifp->if_rtlabelid, &sa_rl);
+ }
#ifdef MPLS
- if ((flags & RTF_MPLS) == RTF_MPLS) {
+ if ((flags & RTF_MPLS) == RTF_MPLS)
info.rti_mpls = MPLS_OP_POP;
- /* MPLS routes only exist in rdomain 0 */
- rtableid = 0;
- }
#endif /* MPLS */
if ((flags & RTF_HOST) == 0)
@@ -1067,7 +1069,7 @@ rt_ifa_add(struct ifaddr *ifa, int flags, struct sockaddr *dst)
if (flags & RTF_CONNECTED)
prio = ifp->if_priority + RTP_CONNECTED;
- error = rtrequest(RTM_ADD, &info, prio, &rt, rtableid);
+ error = rtrequest(RTM_ADD, &info, prio, &rt, rdomain);
if (error == 0) {
/*
* A local route is created for every address configured
@@ -1076,14 +1078,15 @@ rt_ifa_add(struct ifaddr *ifa, int flags, struct sockaddr *dst)
*/
if (flags & RTF_LOCAL)
rtm_addr(RTM_NEWADDR, ifa);
- rtm_send(rt, RTM_ADD, 0, rtableid);
+ rtm_send(rt, RTM_ADD, 0, rdomain);
rtfree(rt);
}
return (error);
}
int
-rt_ifa_del(struct ifaddr *ifa, int flags, struct sockaddr *dst)
+rt_ifa_del(struct ifaddr *ifa, int flags, struct sockaddr *dst,
+ unsigned int rdomain)
{
struct ifnet *ifp = ifa->ifa_ifp;
struct rtentry *rt;
@@ -1091,16 +1094,9 @@ rt_ifa_del(struct ifaddr *ifa, int flags, struct sockaddr *dst)
struct sockaddr *deldst;
struct rt_addrinfo info;
struct sockaddr_rtlabel sa_rl;
- unsigned int rtableid = ifp->if_rdomain;
uint8_t prio = ifp->if_priority + RTP_STATIC;
int error;
-#ifdef MPLS
- if ((flags & RTF_MPLS) == RTF_MPLS)
- /* MPLS routes only exist in rdomain 0 */
- rtableid = 0;
-#endif /* MPLS */
-
if ((flags & RTF_HOST) == 0 && ifa->ifa_netmask) {
m = m_get(M_DONTWAIT, MT_SONAME);
if (m == NULL)
@@ -1116,7 +1112,12 @@ rt_ifa_del(struct ifaddr *ifa, int flags, struct sockaddr *dst)
info.rti_info[RTAX_DST] = dst;
if ((flags & RTF_LLINFO) == 0)
info.rti_info[RTAX_GATEWAY] = ifa->ifa_addr;
- info.rti_info[RTAX_LABEL] = rtlabel_id2sa(ifp->if_rtlabelid, &sa_rl);
+
+ KASSERT(rdomain == rtable_l2(rdomain));
+ if (rdomain == rtable_l2(ifp->if_rtlabelid)) {
+ info.rti_info[RTAX_LABEL] =
+ rtlabel_id2sa(ifp->if_rtlabelid, &sa_rl);
+ }
if ((flags & RTF_HOST) == 0)
info.rti_info[RTAX_NETMASK] = ifa->ifa_netmask;
@@ -1127,9 +1128,9 @@ rt_ifa_del(struct ifaddr *ifa, int flags, struct sockaddr *dst)
if (flags & RTF_CONNECTED)
prio = ifp->if_priority + RTP_CONNECTED;
- error = rtrequest_delete(&info, prio, ifp, &rt, rtableid);
+ error = rtrequest_delete(&info, prio, ifp, &rt, rdomain);
if (error == 0) {
- rtm_send(rt, RTM_DELETE, 0, rtableid);
+ rtm_send(rt, RTM_DELETE, 0, rdomain);
if (flags & RTF_LOCAL)
rtm_addr(RTM_DELADDR, ifa);
rtfree(rt);
@@ -1145,6 +1146,7 @@ rt_ifa_del(struct ifaddr *ifa, int flags, struct sockaddr *dst)
int
rt_ifa_addlocal(struct ifaddr *ifa)
{
+ struct ifnet *ifp = ifa->ifa_ifp;
struct rtentry *rt;
u_int flags = RTF_HOST|RTF_LOCAL;
int error = 0;
@@ -1171,13 +1173,15 @@ rt_ifa_addlocal(struct ifaddr *ifa)
break;
}
- if (!ISSET(ifa->ifa_ifp->if_flags, (IFF_LOOPBACK|IFF_POINTOPOINT)))
+ if (!ISSET(ifp->if_flags, (IFF_LOOPBACK|IFF_POINTOPOINT)))
flags |= RTF_LLINFO;
/* If there is no local entry, allocate one. */
- rt = rtalloc(ifa->ifa_addr, 0, ifa->ifa_ifp->if_rdomain);
- if (rt == NULL || ISSET(rt->rt_flags, flags) != flags)
- error = rt_ifa_add(ifa, flags | RTF_MPATH, ifa->ifa_addr);
+ rt = rtalloc(ifa->ifa_addr, 0, ifp->if_rdomain);
+ if (rt == NULL || ISSET(rt->rt_flags, flags) != flags) {
+ error = rt_ifa_add(ifa, flags | RTF_MPATH, ifa->ifa_addr,
+ ifp->if_rdomain);
+ }
rtfree(rt);
return (error);
@@ -1189,6 +1193,7 @@ rt_ifa_addlocal(struct ifaddr *ifa)
int
rt_ifa_dellocal(struct ifaddr *ifa)
{
+ struct ifnet *ifp = ifa->ifa_ifp;
struct rtentry *rt;
u_int flags = RTF_HOST|RTF_LOCAL;
int error = 0;
@@ -1213,7 +1218,7 @@ rt_ifa_dellocal(struct ifaddr *ifa)
break;
}
- if (!ISSET(ifa->ifa_ifp->if_flags, (IFF_LOOPBACK|IFF_POINTOPOINT)))
+ if (!ISSET(ifp->if_flags, (IFF_LOOPBACK|IFF_POINTOPOINT)))
flags |= RTF_LLINFO;
/*
@@ -1224,9 +1229,11 @@ rt_ifa_dellocal(struct ifaddr *ifa)
* a subnet-router anycast address on an interface attached
* to a shared medium.
*/
- rt = rtalloc(ifa->ifa_addr, 0, ifa->ifa_ifp->if_rdomain);
- if (rt != NULL && ISSET(rt->rt_flags, flags) == flags)
- error = rt_ifa_del(ifa, flags, ifa->ifa_addr);
+ rt = rtalloc(ifa->ifa_addr, 0, ifp->if_rdomain);
+ if (rt != NULL && ISSET(rt->rt_flags, flags) == flags) {
+ error = rt_ifa_del(ifa, flags, ifa->ifa_addr,
+ ifp->if_rdomain);
+ }
rtfree(rt);
return (error);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.