pseudofs(9)

pseudofs9

Pseudo file system construction kit

Usage

#include <fs/pseudofs/pseudofs.h>

Overview

The pseudofs module offers an abstract API for pseudo-file systems such as procfs(4) and linprocfs(4). It takes care of all the hairy bits like interfacing with the VFS system, enforcing access control, keeping track of file numbers, and cloning files and directories that are process-specific. The consumer module, i.e., the module that implements the actual guts of the file system, needs only provide the directory structure (represented by a collection of structures declared and initialized by macros provided by pseudofs) and callbacks that report file attributes or write the actual file contents into sbufs.

Releases

56 releases since FreeBSD 5.0-RELEASE; the text changed 36 times.

  1. 5.0–5.2.1
  2. 5.3–6.2
  3. 6.3
  4. 6.4
  5. 7.0
  6. 7.1
  7. 7.2
  8. 7.3
  9. 7.4
  10. 8.0
  11. 8.1
  12. 8.2
  13. 8.3
  14. 8.4
  15. 9.0
  16. 9.1
  17. 9.2
  18. 9.3
  19. 10.0
  20. 10.1
  21. 10.2
  22. 10.3
  23. 10.4
  24. 11.0
  25. 11.1
  26. 11.2
  27. 11.3
  28. 11.4
  29. 12.0
  30. 12.1
  31. 12.2
  32. 12.3
  33. 12.4
  34. 13.0–13.2
  35. 13.3–13.5
  36. 14.0–14.5
  37. 15.0–16.0

History

The pseudofs module appeared in FreeBSD 5.0.

Authors

The pseudofs module and this manual page were written by Dag-Erling Smørgrav ⟨[email protected]⟩.

From base 16.0-CURRENT-20261027-61c70dc16a79 in FreeBSD 16.0-CURRENT (2026-10-27). Parsed by carta from the page's mdoc source.