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path: root/net/ipv4/xfrm4_policy.c
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Diffstat (limited to 'net/ipv4/xfrm4_policy.c')
-rw-r--r--net/ipv4/xfrm4_policy.c59
1 files changed, 41 insertions, 18 deletions
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index c10a9ee68433..1e0c3c835a63 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -15,7 +15,7 @@
#include <net/dst.h>
#include <net/xfrm.h>
#include <net/ip.h>
-#include <net/vrf.h>
+#include <net/l3mdev.h>
static struct xfrm_policy_afinfo xfrm4_policy_afinfo;
@@ -97,6 +97,7 @@ static int xfrm4_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
xdst->u.rt.rt_gateway = rt->rt_gateway;
xdst->u.rt.rt_uses_gateway = rt->rt_uses_gateway;
xdst->u.rt.rt_pmtu = rt->rt_pmtu;
+ xdst->u.rt.rt_table_id = rt->rt_table_id;
INIT_LIST_HEAD(&xdst->u.rt.rt_uncached);
return 0;
@@ -110,10 +111,8 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
struct flowi4 *fl4 = &fl->u.ip4;
int oif = 0;
- if (skb_dst(skb)) {
- oif = vrf_master_ifindex(skb_dst(skb)->dev) ?
- : skb_dst(skb)->dev->ifindex;
- }
+ if (skb_dst(skb))
+ oif = l3mdev_fib_oif(skb_dst(skb)->dev);
memset(fl4, 0, sizeof(struct flowi4));
fl4->flowi4_mark = skb->mark;
@@ -128,7 +127,10 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
case IPPROTO_DCCP:
if (xprth + 4 < skb->data ||
pskb_may_pull(skb, xprth + 4 - skb->data)) {
- __be16 *ports = (__be16 *)xprth;
+ __be16 *ports;
+
+ xprth = skb_network_header(skb) + iph->ihl * 4;
+ ports = (__be16 *)xprth;
fl4->fl4_sport = ports[!!reverse];
fl4->fl4_dport = ports[!reverse];
@@ -136,8 +138,12 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
break;
case IPPROTO_ICMP:
- if (pskb_may_pull(skb, xprth + 2 - skb->data)) {
- u8 *icmp = xprth;
+ if (xprth + 2 < skb->data ||
+ pskb_may_pull(skb, xprth + 2 - skb->data)) {
+ u8 *icmp;
+
+ xprth = skb_network_header(skb) + iph->ihl * 4;
+ icmp = xprth;
fl4->fl4_icmp_type = icmp[0];
fl4->fl4_icmp_code = icmp[1];
@@ -145,33 +151,50 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
break;
case IPPROTO_ESP:
- if (pskb_may_pull(skb, xprth + 4 - skb->data)) {
- __be32 *ehdr = (__be32 *)xprth;
+ if (xprth + 4 < skb->data ||
+ pskb_may_pull(skb, xprth + 4 - skb->data)) {
+ __be32 *ehdr;
+
+ xprth = skb_network_header(skb) + iph->ihl * 4;
+ ehdr = (__be32 *)xprth;
fl4->fl4_ipsec_spi = ehdr[0];
}
break;
case IPPROTO_AH:
- if (pskb_may_pull(skb, xprth + 8 - skb->data)) {
- __be32 *ah_hdr = (__be32 *)xprth;
+ if (xprth + 8 < skb->data ||
+ pskb_may_pull(skb, xprth + 8 - skb->data)) {
+ __be32 *ah_hdr;
+
+ xprth = skb_network_header(skb) + iph->ihl * 4;
+ ah_hdr = (__be32 *)xprth;
fl4->fl4_ipsec_spi = ah_hdr[1];
}
break;
case IPPROTO_COMP:
- if (pskb_may_pull(skb, xprth + 4 - skb->data)) {
- __be16 *ipcomp_hdr = (__be16 *)xprth;
+ if (xprth + 4 < skb->data ||
+ pskb_may_pull(skb, xprth + 4 - skb->data)) {
+ __be16 *ipcomp_hdr;
+
+ xprth = skb_network_header(skb) + iph->ihl * 4;
+ ipcomp_hdr = (__be16 *)xprth;
fl4->fl4_ipsec_spi = htonl(ntohs(ipcomp_hdr[1]));
}
break;
case IPPROTO_GRE:
- if (pskb_may_pull(skb, xprth + 12 - skb->data)) {
- __be16 *greflags = (__be16 *)xprth;
- __be32 *gre_hdr = (__be32 *)xprth;
+ if (xprth + 12 < skb->data ||
+ pskb_may_pull(skb, xprth + 12 - skb->data)) {
+ __be16 *greflags;
+ __be32 *gre_hdr;
+
+ xprth = skb_network_header(skb) + iph->ihl * 4;
+ greflags = (__be16 *)xprth;
+ gre_hdr = (__be32 *)xprth;
if (greflags[0] & GRE_KEY) {
if (greflags[0] & GRE_CSUM)
@@ -245,7 +268,7 @@ static struct dst_ops xfrm4_dst_ops = {
.destroy = xfrm4_dst_destroy,
.ifdown = xfrm4_dst_ifdown,
.local_out = __ip_local_out,
- .gc_thresh = 32768,
+ .gc_thresh = INT_MAX,
};
static struct xfrm_policy_afinfo xfrm4_policy_afinfo = {