netdev - [PATCH net-next 1/2] include/uapi/linux/xfrm.h: Pack struct xfrm_userpolicy

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Date:	Tue, 7 Jan 2014 14:48:58 +0800
From:	Fan Du <fan.du@...driver.com>
To:	<steffen.klassert@...unet.com>
CC:	<davem@...emloft.net>, <stephen@...workplumber.org>,
	<dev@...ts.strongswan.org>, <netdev@...r.kernel.org>
Subject: [PATCH net-next 1/2] include/uapi/linux/xfrm.h: Pack struct xfrm_userpolicy_info

Otherwise 64bits kernel has sizeof(struct xfrm_userpolicy_info) 168 bytes,
while 32bits compiled iproute2 see the same structure as 164 bytes, which
leading deficit xfrm policy, in turn broken IPsec connectivity.

Fix this by packing the structure.

Signed-off-by: Fan Du <fan.du@...driver.com>
---
 include/uapi/linux/xfrm.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/uapi/linux/xfrm.h b/include/uapi/linux/xfrm.h
index a8cd6a4..470bfae 100644
--- a/include/uapi/linux/xfrm.h
+++ b/include/uapi/linux/xfrm.h
@@ -405,7 +405,7 @@ struct xfrm_userpolicy_info {
 	/* Automatically expand selector to include matching ICMP payloads. */
 #define XFRM_POLICY_ICMP	2
 	__u8				share;
-};
+} __attribute__((packed));
 
 struct xfrm_userpolicy_id {
 	struct xfrm_selector		sel;
-- 
1.7.9.5

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