diff options
| author | Patrick McHardy <kaber@trash.net> | 2007-04-06 00:54:39 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-04-06 00:54:39 +0200 |
| commit | 04fef9893a1fa5d429522e09bc9591736408f2e8 (patch) | |
| tree | d997599873920aef8970ce625c8f9d1184d2600e /net/ipv4 | |
| parent | [XFRM]: beet: fix IP option encapsulation (diff) | |
| download | linux-04fef9893a1fa5d429522e09bc9591736408f2e8.tar.xz linux-04fef9893a1fa5d429522e09bc9591736408f2e8.zip | |
[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>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/xfrm4_mode_beet.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/xfrm4_mode_beet.c b/net/ipv4/xfrm4_mode_beet.c index 16efc66a7c3f..f8544b7f02de 100644 --- a/net/ipv4/xfrm4_mode_beet.c +++ b/net/ipv4/xfrm4_mode_beet.c @@ -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; |