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The current implementation doesn't handle the relationship between SPD and SAD well, which may introduce some security and connection issue after SPD updated. For SPD SetData policy: A) When delete the existed SPD entry, its related SAs also should be removed from its Sas list(SadEntry->BySpd). If the SA entry is established by IKE, we can remove it from global SAD list(SadEntry->List) and then free it directly since its SpdEntry will be freed later. B) SPD SetData operation should do some setting date validity-check. For example, whether the SaId specified by setting Data is valid. If the setting date is invalid, EFI_INVALID_PARAMETER should be returned. Cc: Ye Ting <ting.ye@intel.com> Cc: Fu Siyuan <siyuan.fu@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com> Reviewed-by: Ye Ting <ting.ye@intel.com> Reviewed-by: Fu Siyuan <siyuan.fu@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19652 6f19259b-4bc3-4df7-8a09-765794883524