xref: /netbsd/share/man/man9/secmodel_suser.9 (revision 6550d01e)
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28.Dd October 2, 2009
29.Dt SECMODEL_SUSER 9
30.Os
31.Sh NAME
32.Nm secmodel_suser
33.Nd super-user security model
34.Sh DESCRIPTION
35.Nm
36implements the traditional
37.Em super-user
38(root) as the user with effective user-id 0.
39The
40.Em super-user
41is the host administrator, considered to have higher privileges than other
42users.
43.Pp
44The following
45.Xr sysctl 3
46variables are exported:
47.Bl -tag -width compact
48.It security.models.suser.curtain
49If non-zero, will filter returned objects according to the user-id
50requesting information about them, preventing from users any access to
51objects they don't own.
52.Pp
53At the moment, it affects
54.Xr ps 1 ,
55.Xr netstat 1
56(for
57.Dv PF_INET ,
58.Dv PF_INET6 ,
59and
60.Dv PF_UNIX
61PCBs), and
62.Xr w 1 .
63.It security.models.suser.usermount
64Allow non-superuser mounts.
65.Pp
66If non-zero, file-systems are allowed to be mounted by an ordinary user who
67owns the point
68.Ar node
69and has at least read access to the
70.Ar special
71device
72.Xr mount 8
73arguments.
74Finally, the flags
75.Cm nosuid
76and
77.Cm nodev
78must be given for non-superuser mounts.
79.El
80.Sh SEE ALSO
81.Xr kauth 9 ,
82.Xr secmodel 9 ,
83.Xr secmodel_bsd44 9
84.Sh AUTHORS
85.An Elad Efrat Aq elad@NetBSD.org
86