Kyle Evans
0faa88f26c
The unmount check is straightforward and only really needs the struct mount and flags used, in case a MAC policy wants to reject force-unmounts or do special handling for FSID-based unmounts. The mount check offers as much information as I think might be of interest to a MAC policy: the vnode to be mounted on, vfsconf, and applicable mount options. XNU also has a later version that just takes a struct mount for everything that VFS_MOUNT() has to offer, but my draft policy doesn't need any of that. It also doesn't really need the unmount check, but it seems reasonable to add it while I'm here. The update check similarly passes the flags/options for the operation, along with the struct mount and label. Reviewed by: kib, olce Differential Revision: https://reviews.freebsd.org/D55601
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