-static int xfrm_user_rcv_skb(struct sk_buff *skb)
-{
- int err;
- struct nlmsghdr *nlh;
-
- while (skb->len >= NLMSG_SPACE(0)) {
- u32 rlen;
-
- nlh = (struct nlmsghdr *) skb->data;
- if (nlh->nlmsg_len < sizeof(*nlh) ||
- skb->len < nlh->nlmsg_len)
- return 0;
- rlen = NLMSG_ALIGN(nlh->nlmsg_len);
- if (rlen > skb->len)
- rlen = skb->len;
- if (xfrm_user_rcv_msg(skb, nlh, &err) < 0) {
- if (err == 0)
- return -1;
- netlink_ack(skb, nlh, err);
- } else if (nlh->nlmsg_flags & NLM_F_ACK)
- netlink_ack(skb, nlh, 0);
- skb_pull(skb, rlen);
- }
-
- return 0;
-}
-