diff options
| author | Kees Cook <keescook@chromium.org> | 2013-09-11 19:56:50 +0000 |
|---|---|---|
| committer | Willy Tarreau <w@1wt.eu> | 2014-05-19 07:53:29 +0200 |
| commit | 70630fa3b7148ee07828587fedbf0ad3f895c8e8 (patch) | |
| tree | a88b504cba359c6d8896ea7a2c83f31f58e77860 /include | |
| parent | 69117d947845a3065062d98c46c7a7452709cc6c (diff) | |
HID: provide a helper for validating hid reports
commit 331415ff16a12147d57d5c953f3a961b7ede348b upstream
Many drivers need to validate the characteristics of their HID report
during initialization to avoid misusing the reports. This adds a common
helper to perform validation of the report exisitng, the field existing,
and the expected number of values within the field.
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
[jmm: backported to 2.6.32]
[wt: dev_err() in 2.6.32 instead of hid_err()]
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/hid.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/hid.h b/include/linux/hid.h index 481080d0c8f..e5db8e512d6 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -693,6 +693,10 @@ int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int void hid_output_report(struct hid_report *report, __u8 *data); struct hid_device *hid_allocate_device(void); int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size); +struct hid_report *hid_validate_values(struct hid_device *hid, + unsigned int type, unsigned int id, + unsigned int field_index, + unsigned int report_counts); int hid_check_keys_pressed(struct hid_device *hid); int hid_connect(struct hid_device *hid, unsigned int connect_mask); void hid_disconnect(struct hid_device *hid); |