>> Hmm?  What does ufs have to do with it?  When I did this, I put it
>> in kern/vfs_syscalls.c, and whether the underlying filesystem is ufs
>> or not has nothing to do with it.

> Does filesystem other than local unix filesystem actually need it?

Well, putting it in the ufs layer has implications for disklesses: it
means that the semantics of symlink permissions are those of the server
OS, not those of the client OS.

> # btw, if vfs layer is modified, vfs_lookup.c also.

Well, yes; this is actually a stronger reason to do it in the vfs
layer.  The check you put in ufs always uses the read bit, since the
same VOP_READLINK operation is used for readlink(2) and during path
walks.  However, this doesn't make much sense; it makes more sense to
me to have the read bit control readlink(2) and the execute bit control
path walk operations - which is the semantics I implemented, and yes,
the latter is in vfs_lookup.c.

					der Mouse

			       mouse@rodents.montreal.qc.ca
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