Document File Manager D-Bus shim security feature#360
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assisted-by-ai wants to merge 1 commit intoKicksecure:masterfrom
Closed
Document File Manager D-Bus shim security feature#360assisted-by-ai wants to merge 1 commit intoKicksecure:masterfrom
assisted-by-ai wants to merge 1 commit intoKicksecure:masterfrom
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The fm-shim backend and frontend were not yet documented. Add a new section describing the D-Bus shim that intercepts FileManager1 calls and prompts the user before opening directories. https://claude.ai/code/session_01RHBTARXyvjzrgxyCX6ntnA
ArrayBolt3
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Apr 10, 2026
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Redone in ArrayBolt3@972f4c9.
| by the user to function properly, see notes in | ||
| `/etc/security-misc/emerg-shutdown/30_security_misc.conf`. | ||
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| ## File Manager D-Bus shim |
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Idea accepted, but I'm going to rewrite this, it's both too detailed in places that don't matter as much and not detailed enough in places that matter more.
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Summary
This change adds documentation for the File Manager D-Bus shim, a new security feature that intercepts and controls D-Bus access to the file manager.
Changes
org.freedesktop.FileManager1D-Bus method calls with hardening flags (_FORTIFY_SOURCE=3, PIE, RELRO, CFI)file://only), rejection of Unicode/control characters, path existence verification, and symlink resolutionDetails
The documentation explains how the shim prevents applications from silently opening directories via D-Bus by requiring explicit user confirmation. It addresses PCManFM-Qt D-Bus handling issues while providing an additional control layer for users. The backend runs as a systemd user service that automatically starts on login.
https://claude.ai/code/session_01RHBTARXyvjzrgxyCX6ntnA