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-rw-r--r--net/ipv6/esp6.c4
-rw-r--r--net/ipv6/xfrm6_mode_beet.c29
2 files changed, 30 insertions, 3 deletions
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index c6bb4c6d24b..b181b08fb76 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -521,6 +521,10 @@ static int esp6_init_state(struct xfrm_state *x)
crypto_aead_ivsize(aead);
switch (x->props.mode) {
case XFRM_MODE_BEET:
+ if (x->sel.family != AF_INET6)
+ x->props.header_len += IPV4_BEET_PHMAXLEN +
+ (sizeof(struct ipv6hdr) - sizeof(struct iphdr));
+ break;
case XFRM_MODE_TRANSPORT:
break;
case XFRM_MODE_TUNNEL:
diff --git a/net/ipv6/xfrm6_mode_beet.c b/net/ipv6/xfrm6_mode_beet.c
index d6ce400f585..bbd48b101ba 100644
--- a/net/ipv6/xfrm6_mode_beet.c
+++ b/net/ipv6/xfrm6_mode_beet.c
@@ -40,16 +40,39 @@ static void xfrm6_beet_make_header(struct sk_buff *skb)
static int xfrm6_beet_output(struct xfrm_state *x, struct sk_buff *skb)
{
struct ipv6hdr *top_iph;
-
- skb_set_network_header(skb, -x->props.header_len);
+ struct ip_beet_phdr *ph;
+ struct iphdr *iphv4;
+ int optlen, hdr_len;
+
+ iphv4 = ip_hdr(skb);
+ hdr_len = 0;
+ optlen = XFRM_MODE_SKB_CB(skb)->optlen;
+ if (unlikely(optlen))
+ hdr_len += IPV4_BEET_PHMAXLEN - (optlen & 4);
+
+ skb_set_network_header(skb, -x->props.header_len - hdr_len);
+ if (x->sel.family != AF_INET6)
+ skb->network_header += IPV4_BEET_PHMAXLEN;
skb->mac_header = skb->network_header +
offsetof(struct ipv6hdr, nexthdr);
skb->transport_header = skb->network_header + sizeof(*top_iph);
- __skb_pull(skb, XFRM_MODE_SKB_CB(skb)->ihl);
+ ph = (struct ip_beet_phdr *)__skb_pull(skb, XFRM_MODE_SKB_CB(skb)->ihl-hdr_len);
xfrm6_beet_make_header(skb);
top_iph = ipv6_hdr(skb);
+ if (unlikely(optlen)) {
+
+ BUG_ON(optlen < 0);
+
+ ph->padlen = 4 - (optlen & 4);
+ ph->hdrlen = optlen / 8;
+ ph->nexthdr = top_iph->nexthdr;
+ if (ph->padlen)
+ memset(ph + 1, IPOPT_NOP, ph->padlen);
+
+ top_iph->nexthdr = IPPROTO_BEETPH;
+ }
ipv6_addr_copy(&top_iph->saddr, (struct in6_addr *)&x->props.saddr);
ipv6_addr_copy(&top_iph->daddr, (struct in6_addr *)&x->id.daddr);