Commit 74005991 authored Jan 27, 2015 by Fan Du Committed by Steffen Klassert Mar 03, 2015

xfrm: Do not parse 32bits compiled xfrm netlink msg on 64bits host



structure like xfrm_usersa_info or xfrm_userpolicy_info
has different sizeof when compiled as 32bits and 64bits
due to not appending pack attribute in their definition.
This will result in broken SA and SP information when user
trying to configure them through netlink interface.

Inform user land about this situation instead of keeping
silent, the upper test scripts would behave accordingly.

Signed-off-by: Fan Du <fan.du@intel.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

parent b898441f

net/xfrm/xfrm_user.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -2423,6 +2423,11 @@ static int xfrm_user_rcv_msg(struct sk_buff skb, struct nlmsghdr nlh)
		const struct xfrm_link *link;
		int type, err;

		#ifdef CONFIG_COMPAT
		if (is_compat_task())
		return -ENOTSUPP;
		#endif

		type = nlh->nlmsg_type;
		if (type > XFRM_MSG_MAX)
		return -EINVAL;