Commit 04fef989 authored Apr 05, 2007 by Patrick McHardy Committed by David S. Miller Apr 05, 2007

[XFRM]: beet: use IPOPT_NOP for option padding



draft-nikander-esp-beet-mode-07.txt states "The padding MUST be filled
with NOP options as defined in Internet Protocol [1] section 3.1
Internet header format.", so do that.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent c5027c9a

net/ipv4/xfrm4_mode_beet.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -54,6 +54,8 @@ static int xfrm4_beet_output(struct xfrm_state x, struct sk_buff skb)
		ph->padlen = 4 - (optlen & 4);
		ph->hdrlen = (optlen + ph->padlen + sizeof(*ph)) / 8;
		ph->nexthdr = top_iph->protocol;
		if (ph->padlen)
		memset(ph + 1, IPOPT_NOP, ph->padlen);

		top_iph->protocol = IPPROTO_BEETPH;
		top_iph->ihl = sizeof(struct iphdr) / 4;