[IPSEC]: Set skb->data to payload in x->mode->output

[mirror_ubuntu-focal-kernel.git] / net / ipv6 / esp6.c

diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 7355bb0345e2b76d288bb63f6d47157a314a27d6..21c93f026dbc07f8d6f409338178859a21838577 100644 (file)
--- 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)
        int nfrags;
        u8 *tail;
        struct esp_data *esp = x->data;
-       int hdr_len = (skb_transport_offset(skb) +
-                      sizeof(*esph) + esp->conf.ivlen);
 
-       /* Strip IP+ESP header. */
-       __skb_pull(skb, hdr_len);
-
-       /* Now skb is pure payload to encrypt */
+       /* skb is pure payload to encrypt */
        err = -ENOMEM;
 
        /* Round to block size */
@@ -89,7 +84,7 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
        tail[clen-skb->len - 2] = (clen - skb->len) - 2;
        pskb_put(skb, trailer, clen - skb->len);
 
-       __skb_push(skb, -skb_network_offset(skb));
+       skb_push(skb, -skb_network_offset(skb));
        top_iph = ipv6_hdr(skb);
        esph = (struct ipv6_esp_hdr *)skb_transport_header(skb);
        top_iph->payload_len = htons(skb->len + alen - sizeof(*top_iph));