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Diffstat (limited to 'net/ipv6/xfrm6_policy.c')
-rw-r--r--net/ipv6/xfrm6_policy.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index ed0583c1b..da55e0c85 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -20,13 +20,14 @@
#include <net/ip.h>
#include <net/ipv6.h>
#include <net/ip6_route.h>
+#include <net/vrf.h>
#if IS_ENABLED(CONFIG_IPV6_MIP6)
#include <net/mip6.h>
#endif
static struct xfrm_policy_afinfo xfrm6_policy_afinfo;
-static struct dst_entry *xfrm6_dst_lookup(struct net *net, int tos,
+static struct dst_entry *xfrm6_dst_lookup(struct net *net, int tos, int oif,
const xfrm_address_t *saddr,
const xfrm_address_t *daddr)
{
@@ -35,6 +36,8 @@ static struct dst_entry *xfrm6_dst_lookup(struct net *net, int tos,
int err;
memset(&fl6, 0, sizeof(fl6));
+ fl6.flowi6_oif = oif;
+ fl6.flowi6_flags = FLOWI_FLAG_SKIP_NH_OIF;
memcpy(&fl6.daddr, daddr, sizeof(fl6.daddr));
if (saddr)
memcpy(&fl6.saddr, saddr, sizeof(fl6.saddr));
@@ -50,13 +53,13 @@ static struct dst_entry *xfrm6_dst_lookup(struct net *net, int tos,
return dst;
}
-static int xfrm6_get_saddr(struct net *net,
+static int xfrm6_get_saddr(struct net *net, int oif,
xfrm_address_t *saddr, xfrm_address_t *daddr)
{
struct dst_entry *dst;
struct net_device *dev;
- dst = xfrm6_dst_lookup(net, 0, NULL, daddr);
+ dst = xfrm6_dst_lookup(net, 0, oif, NULL, daddr);
if (IS_ERR(dst))
return -EHOSTUNREACH;
@@ -130,8 +133,10 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
nexthdr = nh[nhoff];
- if (skb_dst(skb))
- oif = skb_dst(skb)->dev->ifindex;
+ if (skb_dst(skb)) {
+ oif = vrf_master_ifindex(skb_dst(skb)->dev) ?
+ : skb_dst(skb)->dev->ifindex;
+ }
memset(fl6, 0, sizeof(struct flowi6));
fl6->flowi6_mark = skb->mark;
@@ -174,7 +179,8 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
return;
case IPPROTO_ICMPV6:
- if (!onlyproto && pskb_may_pull(skb, nh + offset + 2 - skb->data)) {
+ if (!onlyproto && (nh + offset + 2 < skb->data ||
+ pskb_may_pull(skb, nh + offset + 2 - skb->data))) {
u8 *icmp;
nh = skb_network_header(skb);
@@ -188,7 +194,8 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
#if IS_ENABLED(CONFIG_IPV6_MIP6)
case IPPROTO_MH:
offset += ipv6_optlen(exthdr);
- if (!onlyproto && pskb_may_pull(skb, nh + offset + 3 - skb->data)) {
+ if (!onlyproto && (nh + offset + 3 < skb->data ||
+ pskb_may_pull(skb, nh + offset + 3 - skb->data))) {
struct ip6_mh *mh;
nh = skb_network_header(skb);