Re: [PATCH iproute2] ip xfrm: support 64bit kernel and 32bit userspace
From: Li RongQing <hidden>
Date: 2014-11-28 07:35:29
On Fri, Nov 28, 2014 at 3:08 PM, FengYu LeiDian [off-list ref] wrote:
于 2014年11月28日 14:58, roy.qing.li@gmail.com 写道:quoted
From: Li RongQing<redacted> The size of struct xfrm_userpolicy_info is 168 bytes for 64bit kernel, and 164 bytes for 32bit userspace because of the different alignment. and lead to "ip xfrm" be unable to work. add a pad in struct xfrm_userpolicy_info, and enable it by set KERNEL_64_USERSPACE_32 to yIt's not easy to fix it like this. Refer: http://marc.info/?l=linux-netdev&m=139280143513650&w=2 http://thread.gmane.org/gmane.linux.network/157118/focus=157122
is it be practical to find all structures which has the issue for 64bit kernel and 32 bit userspace, and conditionally add a pad for them -Roy