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When securelevel is >= 1, /dev/io may not be opened at all (not just for

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write).  Update the securelevel description to match this.

Reported by:	Alexandros Kosiaris <akosiaris@gmail.com>
MFC after:	3 days
This commit is contained in:
Giorgos Keramidas 2006-07-12 18:12:11 +00:00
parent 9b6560e483
commit ff8a6926d9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=160306
1 changed files with 4 additions and 3 deletions
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7
share/man/man7/security.7
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@ -548,11 +548,12 @@ All devices may be read or written subject to their permissions.
Secure mode \- the system immutable and system append-only flags may not
be turned off;
disks for mounted file systems,
.Pa /dev/mem ,
.Pa /dev/kmem
.Pa /dev/mem
and
.Pa /dev/kmem
may not be opened for writing;
.Pa /dev/io
(if your platform has it) may not be opened for writing;
(if your platform has it) may not be opened at all;
kernel modules (see
.Xr kld 4 )
may not be loaded or unloaded.