Differential D51610

Add u2f(4), a HID driver for FIDO/U2F security keys
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Authored by wulf on Jul 28 2025, 9:32 PM.

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Reviewers

emaste
manu
andrew

Summary

While FIDO/U2F keys were already supported by the generic uhid(4) and
hidraw(4) drivers, this driver adds some additional features an does
steps to tighten the security of FIDO/U2F access.

It automatically loads through devd.
Automatically enables HQ_NO_READAHEAD for FIDO/U2F devices.
Implements only miminum set of features.
Do not requires external devfs configuration to set character device permissions.
Names character device as u2f/# to make possible capsicum or any other pledge()-style sandboxing.

PR: 265528
MFC after: 1 week

Diff Detail

Repository

rG FreeBSD src repository

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Unit

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Build Status

Buildable 65821
Build 62704: arc lint + arc unit

Event Timeline

wulf created this revision.Jul 28 2025, 9:32 PM

Herald added a reviewer: andrew. · View Herald TranscriptJul 28 2025, 9:32 PM

Herald added a reviewer: andrew. · View Herald Transcript

Herald added subscribers: riscv, ziaee, jhibbits, imp. · View Herald Transcript

wulf requested review of this revision.Jul 28 2025, 9:32 PM

Harbormaster completed remote builds in B65821: Diff 159375.Jul 28 2025, 9:32 PM

Duplicate of D51612

Revision Contents
Changeset List

Path

Size

share/

man/

man4/

1 line

93 lines

sys/

amd64/

conf/

1 line

arm/

conf/

1 line

arm64/

conf/

1 line

conf/

2 lines

1 line

1 line

dev/

hid/

590 lines

i386/

conf/

1 line

modules/

hid/

1 line

u2f/

8 lines

powerpc/

conf/

1 line

1 line

riscv/

conf/

1 line

Diff 159375

share/man/man4/Makefile

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share/man/man4/u2f.4

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sys/amd64/conf/GENERIC

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sys/arm/conf/GENERIC

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sys/arm64/conf/std.dev

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sys/conf/NOTES

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sys/conf/files

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sys/conf/options

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sys/dev/hid/u2f.c

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sys/i386/conf/GENERIC

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sys/modules/hid/Makefile

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sys/modules/hid/u2f/Makefile

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sys/powerpc/conf/GENERIC64

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sys/powerpc/conf/GENERIC64LE

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sys/riscv/conf/GENERIC

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