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Trusted Extensions Label Administration

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Updated: August 2018

How to Assign a Color to a Label or Word

To minimize color-flashing, use color names or hexadecimal color values that you know have been specified for other applications. The default color values have been chosen with memory limitations for color in mind.

Before You Begin

You must be in the Security Administrator role in the global zone.

  1. Back up the label_encodings file.
    # cp label_encodings label_encodings.orig
  2. Edit the label_encodings file.
    # pfedit label_encodings
  3. Find the COLOR NAMES section.
    label= Admin_Low;       color= #bdbdbd;
    label= Admin_High;      color= #636363;
  4. Define a color for each classification.

    In this example, the classification REGISTERED is assigned the color red. The NEED_TO_KNOW classification is assigned the color blue.

    label= REGISTERED;  color= red;
    label= NEED TO KNOW; color= blue;
  5. (Optional)Define colors for individual compartment words.

    To distinguish certain compartment words irrespective of the classification with which they are associated, assign a separate color to those words.

    1. Determine the possible color names on your system.

      The names are defined in a local color database. For more information, see the X11(7) man page.

      % grep Red /usr/share/X11/rgb.txt
      255  69   0             OrangeRed
      219 112 147             PaleVioletRed
      139   0   0             DarkRed
    2. Assign the color names.

      For example, assign the color OrangeRed to the EMGT compartment:

      word= EMGT; color= OrangeRed;
  6. (Optional)Define colors for labels.

    In this example, assign the color MediumPurple4 to the NEED TO KNOW label.

    label= NEED TO KNOW; color= MediumPurple4;
  7. Save your changes.

Next Steps

Continue with How to Analyze and Verify the label_encodings File.