diff options
| author | Benjamin Tissoires <bentiss@kernel.org> | 2024-06-26 16:46:23 +0300 |
|---|---|---|
| committer | Benjamin Tissoires <bentiss@kernel.org> | 2024-06-27 11:58:19 +0300 |
| commit | 67eccf151d76a9939ad8a50c6db5cb486b01df24 (patch) | |
| tree | 1a2b0d02140df64b820dded3ccc511d38d47ee1d /include/linux/hid_bpf.h | |
| parent | ebae0b2a6f4b3b949f30f076fbc65d3b0bb04785 (diff) | |
| download | linux-67eccf151d76a9939ad8a50c6db5cb486b01df24.tar.xz | |
HID: add source argument to HID low level functions
This allows to know who actually sent what when we process the request
to the device.
This will be useful for a BPF firewall program to allow or not requests
coming from a dedicated hidraw node client.
Link: https://patch.msgid.link/20240626-hid_hw_req_bpf-v2-2-cfd60fb6c79f@kernel.org
Acked-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Diffstat (limited to 'include/linux/hid_bpf.h')
| -rw-r--r-- | include/linux/hid_bpf.h | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/include/linux/hid_bpf.h b/include/linux/hid_bpf.h index 65d7e0acc8c2..a54741db0415 100644 --- a/include/linux/hid_bpf.h +++ b/include/linux/hid_bpf.h @@ -66,10 +66,12 @@ struct hid_ops { int (*hid_hw_raw_request)(struct hid_device *hdev, unsigned char reportnum, __u8 *buf, size_t len, enum hid_report_type rtype, - enum hid_class_request reqtype); - int (*hid_hw_output_report)(struct hid_device *hdev, __u8 *buf, size_t len); + enum hid_class_request reqtype, + __u64 source); + int (*hid_hw_output_report)(struct hid_device *hdev, __u8 *buf, size_t len, + __u64 source); int (*hid_input_report)(struct hid_device *hid, enum hid_report_type type, - u8 *data, u32 size, int interrupt); + u8 *data, u32 size, int interrupt, u64 source); struct module *owner; const struct bus_type *bus_type; }; @@ -110,7 +112,8 @@ struct hid_bpf_ops { * * Context: Interrupt context. */ - int (*hid_device_event)(struct hid_bpf_ctx *ctx, enum hid_report_type report_type); + int (*hid_device_event)(struct hid_bpf_ctx *ctx, enum hid_report_type report_type, + __u64 source); /** * @hid_rdesc_fixup: called when the probe function parses the report descriptor @@ -146,7 +149,7 @@ struct hid_bpf { #ifdef CONFIG_HID_BPF u8 *dispatch_hid_bpf_device_event(struct hid_device *hid, enum hid_report_type type, u8 *data, - u32 *size, int interrupt); + u32 *size, int interrupt, u64 source); int hid_bpf_connect_device(struct hid_device *hdev); void hid_bpf_disconnect_device(struct hid_device *hdev); void hid_bpf_destroy_device(struct hid_device *hid); @@ -154,7 +157,8 @@ void hid_bpf_device_init(struct hid_device *hid); u8 *call_hid_bpf_rdesc_fixup(struct hid_device *hdev, u8 *rdesc, unsigned int *size); #else /* CONFIG_HID_BPF */ static inline u8 *dispatch_hid_bpf_device_event(struct hid_device *hid, enum hid_report_type type, - u8 *data, u32 *size, int interrupt) { return data; } + u8 *data, u32 *size, int interrupt, + u64 source) { return data; } static inline int hid_bpf_connect_device(struct hid_device *hdev) { return 0; } static inline void hid_bpf_disconnect_device(struct hid_device *hdev) {} static inline void hid_bpf_destroy_device(struct hid_device *hid) {} |