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PacketDiag

PacketDiag creates bit-field layouts for packets and binary records.

Use this type​

Use PacketDiag to show field positions, field widths, and grouped data.

Source format​

The source format is PacketDiag text. Enter the source in the diagram.zip editor.

Syntax essentials​

  • Put the diagram in a packetdiag block.
  • Set the column width when the default is not correct.
  • Use bit ranges before field labels.
  • Use attributes for field height or label rotation.

Example​

packetdiag {
  colwidth = 16;
  0-3: Version;
  4-7: Flags;
  8-15: Length;
}
Rendered exampleDrag to pan. Use the wheel or controls to zoom.
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This view uses the live diagram.zip renderer.

Upstream reference​

PacketDiag documentation