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|Trusted Extensions Configuration and Administration Oracle Solaris 11 Information Library|
By default, regular users can perform cut-and-paste, copy-and-paste, and drag-and-drop operations on both files and selections. The source and target must be at the same label.
To change the label of files, or the label of information within files requires authorization. When users are authorized to change the security level of data, the Selection Manager application mediates the transfer. The /usr/share/gnome/sel_config file controls file relabeling actions, and the cutting and copying of information to a different label. The /usr/bin/tsoljdsselmgr application controls drag-and-drop operations between windows. As the following tables illustrate, the relabeling of a selection is more restrictive than the relabeling of a file.
The following table summarizes the rules for file relabeling. The rules cover cut-and-paste, copy-and-paste, and drag-and-drop operations.
Table 8-1 Conditions for Moving Files to a New Label
Different rules apply to selections within a window or file. Drag-and-drop of selections always requires equality of labels and ownership. Drag-and-drop between windows is mediated by the Selection Manager application, not by the sel_config file.
The rules for changing the label of selections are summarized in the following table.
Table 8-2 Conditions for Moving Selections to a New Label
Trusted Extensions provides a selection confirmer to mediate label changes. This window appears when an authorized user attempts to change the label of a file or selection. The user has 120 seconds to confirm the operation. To change the security level of data without this window requires the solaris.label.win.noview authorization, in addition to the relabeling authorizations. The following illustration shows a selection, two-line, in the window.
By default, the selection confirmer displays whenever data is being transferred to a different label. If a selection requires several transfer decisions, the automatic reply mechanism provides a way to reply once to the several transfers. For more information, see the sel_config(4) man page and the following section.
The sel_config file defines the following:
A list of selection types to which automatic replies are given
Whether certain types of operations can be automatically confirmed
Whether a selection confirmer dialog box is displayed