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Diffstat (limited to 'net/ipv6/esp6.c')
-rw-r--r--net/ipv6/esp6.c9
1 files changed, 2 insertions, 7 deletions
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 7355bb0345e2..21c93f026dbc 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -54,13 +54,8 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
54 int nfrags; 54 int nfrags;
55 u8 *tail; 55 u8 *tail;
56 struct esp_data *esp = x->data; 56 struct esp_data *esp = x->data;
57 int hdr_len = (skb_transport_offset(skb) +
58 sizeof(*esph) + esp->conf.ivlen);
59 57
60 /* Strip IP+ESP header. */ 58 /* skb is pure payload to encrypt */
61 __skb_pull(skb, hdr_len);
62
63 /* Now skb is pure payload to encrypt */
64 err = -ENOMEM; 59 err = -ENOMEM;
65 60
66 /* Round to block size */ 61 /* Round to block size */
@@ -89,7 +84,7 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
89 tail[clen-skb->len - 2] = (clen - skb->len) - 2; 84 tail[clen-skb->len - 2] = (clen - skb->len) - 2;
90 pskb_put(skb, trailer, clen - skb->len); 85 pskb_put(skb, trailer, clen - skb->len);
91 86
92 __skb_push(skb, -skb_network_offset(skb)); 87 skb_push(skb, -skb_network_offset(skb));
93 top_iph = ipv6_hdr(skb); 88 top_iph = ipv6_hdr(skb);
94 esph = (struct ipv6_esp_hdr *)skb_transport_header(skb); 89 esph = (struct ipv6_esp_hdr *)skb_transport_header(skb);
95 top_iph->payload_len = htons(skb->len + alen - sizeof(*top_iph)); 90 top_iph->payload_len = htons(skb->len + alen - sizeof(*top_iph));