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author | Benjamin Tissoires <bentiss@kernel.org> | 2024-06-26 15:46:28 +0200 |
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committer | Benjamin Tissoires <bentiss@kernel.org> | 2024-06-27 11:00:45 +0200 |
commit | 9286675a2aed40a517be8cc4e283a04f473275b5 (patch) | |
tree | 9d32d1f847856d770a8c7374cc278ea91b6dbb73 /lib/pm-notifier-error-inject.c | |
parent | 015a4a2a439b285943da471d38b2721bbe4d8b39 (diff) |
HID: bpf: add HID-BPF hooks for hid_hw_output_report
Same story than hid_hw_raw_requests:
This allows to intercept and prevent or change the behavior of
hid_hw_output_report() from a bpf program.
The intent is to solve a couple of use case:
- firewalling a HID device: a firewall can monitor who opens the hidraw
nodes and then prevent or allow access to write operations on that
hidraw node.
- change the behavior of a device and emulate a new HID feature request
The hook is allowed to be run as sleepable so it can itself call
hid_hw_output_report(), which allows to "convert" one feature request into
another or even call the feature request on a different HID device on the
same physical device.
Link: https://patch.msgid.link/20240626-hid_hw_req_bpf-v2-7-cfd60fb6c79f@kernel.org
Acked-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Diffstat (limited to 'lib/pm-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions