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-rw-r--r--sys/linux/vusb.txt258
1 files changed, 156 insertions, 102 deletions
diff --git a/sys/linux/vusb.txt b/sys/linux/vusb.txt
index 5e9177cd6..4eb8040ee 100644
--- a/sys/linux/vusb.txt
+++ b/sys/linux/vusb.txt
@@ -13,29 +13,34 @@ include <uapi/linux/usb/cdc.h>
# This is a special fd for USB fuzzing and should only be used with syz_usb_* syzcalls.
# We don't inherit it from the fd resource, to discourage syzkaller calling raw ioctls on it.
resource fd_usb[int32]: -1
+resource fd_usb_hid[fd_usb]
+# These are generic syzcalls for emulating arbitrary USB devices.
+# They are mostly targeted to cover the enumeration process.
syz_usb_connect(speed flags[usb_device_speed], dev_len len[dev], dev ptr[in, usb_device_descriptor], conn_descs ptr[in, vusb_connect_descriptors]) fd_usb
syz_usb_control_io(fd fd_usb, descs ptr[in, vusb_descriptors], resps ptr[in, vusb_responses])
syz_usb_ep_write(fd fd_usb, ep int16[0:31], len len[data], data buffer[in])
syz_usb_disconnect(fd fd_usb)
+# These are syzcalls specifically targeted to the HID device class.
+syz_usb_connect$hid(speed flags[usb_device_speed], dev_len len[dev], dev ptr[in, usb_device_descriptor_hid], conn_descs ptr[in, vusb_connect_descriptors]) fd_usb_hid
+syz_usb_control_io$hid(fd fd_usb_hid, descs ptr[in, vusb_descriptors_hid], resps ptr[in, vusb_responses_hid])
+
usb_device_speed = USB_SPEED_UNKNOWN, USB_SPEED_LOW, USB_SPEED_FULL, USB_SPEED_HIGH, USB_SPEED_WIRELESS, USB_SPEED_SUPER, USB_SPEED_SUPER_PLUS
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
-# USB device, configuration, interface and endpoint descriptors.
-
type usb_device_descriptor_t[CLASS, SUBCLASS, PROTOCOL, VENDOR, PRODUCT, DEVICE, CFS] {
bLength const[USB_DT_DEVICE_SIZE, int8]
bDescriptorType const[USB_DT_DEVICE, int8]
- bcdUSB int16
+ bcdUSB flags[usb_versions, int16]
bDeviceClass const[CLASS, int8]
bDeviceSubClass const[SUBCLASS, int8]
bDeviceProtocol const[PROTOCOL, int8]
- bMaxPacketSize0 int8
+ bMaxPacketSize0 flags[usb_max_packet_sizes, int8]
idVendor const[VENDOR, int16]
idProduct const[PRODUCT, int16]
bcdDevice const[DEVICE, int16]
@@ -47,14 +52,12 @@ type usb_device_descriptor_t[CLASS, SUBCLASS, PROTOCOL, VENDOR, PRODUCT, DEVICE,
configs CFS
} [packed]
-# TODO: support more than one configuration.
-# bDeviceClass, bDeviceSubClass, bDeviceProtocol, idVendor, idProduct
-# and bcdDevice are patched by Go code, see sys/linux/init_vusb.go.
-usb_device_descriptor {
- inner usb_device_descriptor_t[0, 0, 0, 0, 0, 0, array[usb_config_descriptor, 1]]
-} [packed]
+usb_versions = 0x110, 0x200, 0x201, 0x250, 0x300, 0x310
+
+# https://elixir.bootlin.com/linux/v5.1.7/source/drivers/usb/core/hub.c#L4661
+usb_max_packet_sizes = 8, 16, 32, 64
-type usb_config_descriptor_t[IFS] {
+type usb_config_descriptor_t[ATTRS, IFS] {
bLength const[USB_DT_CONFIG_SIZE, int8]
bDescriptorType const[USB_DT_CONFIG, int8]
@@ -62,19 +65,12 @@ type usb_config_descriptor_t[IFS] {
bNumInterfaces len[interfaces, int8]
bConfigurationValue int8
iConfiguration int8
- bmAttributes flags[usb_config_attributes, int8]
+ bmAttributes ATTRS
bMaxPower int8
interfaces IFS
} [packed]
-# TODO: support more than one interface.
-usb_config_descriptor {
- inner usb_config_descriptor_t[array[usb_interface_descriptor, 1]]
-} [packed]
-
-usb_config_attributes = USB_CONFIG_ATT_ONE, USB_CONFIG_ATT_SELFPOWER, USB_CONFIG_ATT_WAKEUP, USB_CONFIG_ATT_BATTERY
-
type usb_interface_descriptor_t[CLASS, SUBCLASS, PROTOCOL, EXTRA, EPS] {
bLength const[USB_DT_INTERFACE_SIZE, int8]
bDescriptorType const[USB_DT_INTERFACE, int8]
@@ -91,18 +87,12 @@ type usb_interface_descriptor_t[CLASS, SUBCLASS, PROTOCOL, EXTRA, EPS] {
endpoints EPS
} [packed]
-# bInterfaceClass, bInterfaceSubClass and bInterfaceProtocol
-# are patched by Go code, see sys/linux/init_vusb.go.
-usb_interface_descriptor {
- inner usb_interface_descriptor_t[0, 0, 0, array[usb_interface_extra_descriptor, 0:2], array[usb_endpoint_descriptor, 0:16]]
-} [packed]
-
-type usb_endpoint_descriptor_t[EXTRA] {
+type usb_endpoint_descriptor_t[ADDR, ATTRS, EXTRA] {
bLength const[USB_DT_ENDPOINT_SIZE, int8]
bDescriptorType const[USB_DT_ENDPOINT, int8]
- bEndpointAddress int8
- bmAttributes flags[usb_endpoint_attributes, int8]
+ bEndpointAddress ADDR
+ bmAttributes ATTRS
wMaxPacketSize int16
bInterval int8
bRefresh int8
@@ -111,17 +101,39 @@ type usb_endpoint_descriptor_t[EXTRA] {
extra EXTRA
} [packed]
-usb_endpoint_descriptor {
- inner usb_endpoint_descriptor_t[array[usb_endpoint_extra_descriptor, 0:2]]
-} [packed]
-
-usb_endpoint_attributes = USB_ENDPOINT_XFER_CONTROL, USB_ENDPOINT_XFER_ISOC, USB_ENDPOINT_XFER_BULK, USB_ENDPOINT_XFER_INT, USB_ENDPOINT_INTR_PERIODIC, USB_ENDPOINT_INTR_NOTIFICATION, USB_ENDPOINT_SYNC_NONE, USB_ENDPOINT_SYNC_ASYNC, USB_ENDPOINT_SYNC_ADAPTIVE, USB_ENDPOINT_SYNC_SYNC, USB_ENDPOINT_USAGE_DATA, USB_ENDPOINT_USAGE_FEEDBACK, USB_ENDPOINT_USAGE_FEEDBACK
-
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
-# USB descriptors requested by the kernel before the SET_CONFIGURATION request.
+# Generic USB device, configuration, interface and endpoint descriptors.
+
+# TODO: support more than one configuration.
+# bDeviceClass, bDeviceSubClass, bDeviceProtocol, idVendor, idProduct
+# and bcdDevice are patched by Go code, see sys/linux/init_vusb.go.
+usb_device_descriptor {
+ inner usb_device_descriptor_t[0, 0, 0, 0, 0, 0, array[usb_config_descriptor, 1]]
+} [packed]
+
+# TODO: support more than one interface.
+usb_config_descriptor {
+ inner usb_config_descriptor_t[flags[usb_config_attributes, int8], array[usb_interface_descriptor, 1]]
+} [packed]
+
+usb_config_attributes = USB_CONFIG_ATT_ONE, USB_CONFIG_ATT_SELFPOWER, USB_CONFIG_ATT_WAKEUP, USB_CONFIG_ATT_BATTERY
+
+# bInterfaceClass, bInterfaceSubClass and bInterfaceProtocol
+# are patched by Go code, see sys/linux/init_vusb.go.
+usb_interface_descriptor {
+ inner usb_interface_descriptor_t[0, 0, 0, array[usb_interface_extra_descriptor, 0:2], array[usb_endpoint_descriptor, 0:16]]
+} [packed]
+
+usb_endpoint_descriptor {
+ inner usb_endpoint_descriptor_t[flags[usb_endpoint_addresses, int8], flags[usb_endpoint_attributes, int8], array[usb_endpoint_extra_descriptor, 0:2]]
+} [packed]
+
+usb_endpoint_addresses = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, USB_DIR_OUT, USB_DIR_IN
+
+usb_endpoint_attributes = USB_ENDPOINT_XFER_CONTROL, USB_ENDPOINT_XFER_ISOC, USB_ENDPOINT_XFER_BULK, USB_ENDPOINT_XFER_INT, USB_ENDPOINT_INTR_PERIODIC, USB_ENDPOINT_INTR_NOTIFICATION, USB_ENDPOINT_SYNC_NONE, USB_ENDPOINT_SYNC_ASYNC, USB_ENDPOINT_SYNC_ADAPTIVE, USB_ENDPOINT_SYNC_SYNC, USB_ENDPOINT_USAGE_DATA, USB_ENDPOINT_USAGE_FEEDBACK, USB_ENDPOINT_USAGE_FEEDBACK
# TODO: consider unifying with vusb_descriptors in case this struct significantly grows.
vusb_connect_descriptors {
@@ -138,6 +150,113 @@ vusb_connect_string_descriptor {
str ptr[in, usb_string_descriptor]
} [packed]
+vusb_descriptors {
+ len len[parent, int32]
+ generic ptr[in, vusb_descriptor_generic]
+ string ptr[in, vusb_descriptor_t[USB_TYPE_STANDARD, USB_DT_STRING, usb_string_descriptor]]
+ hid_report ptr[in, vusb_descriptor_t[USB_TYPE_STANDARD, HID_DT_REPORT, hid_descriptor_report]]
+ bos ptr[in, vusb_descriptor_t[USB_TYPE_STANDARD, USB_DT_BOS, usb_bos_descriptor]]
+ hub_hs ptr[in, vusb_descriptor_t[USB_TYPE_STANDARD, USB_DT_HUB, usb_hub_descriptor_hs]]
+ hub_ss ptr[in, vusb_descriptor_t[USB_TYPE_STANDARD, USB_DT_SS_HUB, usb_hub_descriptor_ss]]
+} [packed]
+
+vusb_descriptor_generic {
+ req_type flags[usb_request_types, int8]
+ desc_type flags[usb_descriptor_types, int8]
+ len bytesize[data, int32]
+ data usb_generic_descriptor
+} [packed]
+
+usb_request_types = USB_TYPE_STANDARD, USB_TYPE_CLASS, USB_TYPE_VENDOR
+
+type vusb_descriptor_t[CLASS, REQ, DATA] {
+ type const[CLASS, int8]
+ req const[REQ, int8]
+ len bytesize[data, int32]
+ data DATA
+} [packed]
+
+vusb_responses {
+ len len[parent, int32]
+ generic ptr[in, vusb_response_generic]
+ set_interface ptr[in, vusb_response_t[USB_TYPE_STANDARD, USB_REQ_SET_INTERFACE, void]]
+ get_interface ptr[in, vusb_response_t[USB_TYPE_CLASS, USB_REQ_GET_INTERFACE, int8]]
+ set_configuration ptr[in, vusb_response_t[USB_TYPE_STANDARD, USB_REQ_SET_CONFIGURATION, void]]
+ get_configuration ptr[in, vusb_response_t[USB_TYPE_CLASS, USB_REQ_GET_CONFIGURATION, int8]]
+ get_status_hub ptr[in, vusb_response_t[USB_TYPE_CLASS, USB_REQ_GET_STATUS, usb_hub_status]]
+ get_status_port ptr[in, vusb_response_t[USB_TYPE_CLASS, USB_REQ_GET_STATUS, usb_port_status]]
+ aiptek_get_report ptr[in, vusb_response_t[USB_TYPE_VENDOR, 0x1, array[int8, 3]]]
+ aiptek_set_report ptr[in, vusb_response_t[USB_TYPE_VENDOR, 0x9, array[int8, 3]]]
+ cdc_get_ntb_parameters ptr[in, vusb_response_t[USB_TYPE_CLASS, USB_CDC_GET_NTB_PARAMETERS, usb_cdc_ncm_ntb_parameters]]
+} [packed]
+
+vusb_response_generic {
+ type flags[usb_request_types, int8]
+ req flags[usb_requests, int8]
+ len bytesize[data, int32]
+ data array[int8]
+} [packed]
+
+usb_requests = USB_REQ_GET_STATUS, USB_REQ_CLEAR_FEATURE, USB_REQ_SET_FEATURE, USB_REQ_SET_ADDRESS, USB_REQ_GET_DESCRIPTOR, USB_REQ_SET_DESCRIPTOR, USB_REQ_GET_CONFIGURATION, USB_REQ_SET_CONFIGURATION, USB_REQ_GET_INTERFACE, USB_REQ_SET_INTERFACE, USB_REQ_SYNCH_FRAME, USB_REQ_SET_SEL, USB_REQ_SET_ISOCH_DELAY, USB_REQ_SET_ENCRYPTION, USB_REQ_GET_ENCRYPTION, USB_REQ_RPIPE_ABORT, USB_REQ_SET_HANDSHAKE, USB_REQ_RPIPE_RESET, USB_REQ_GET_HANDSHAKE, USB_REQ_SET_CONNECTION, USB_REQ_SET_SECURITY_DATA, USB_REQ_GET_SECURITY_DATA, USB_REQ_SET_WUSB_DATA, USB_REQ_LOOPBACK_DATA_WRITE, USB_REQ_LOOPBACK_DATA_READ, USB_REQ_SET_INTERFACE_DS, USB_REQ_GET_PARTNER_PDO, USB_REQ_GET_BATTERY_STATUS, USB_REQ_SET_PDO, USB_REQ_GET_VDM, USB_REQ_SEND_VDM
+
+type vusb_response_t[CLASS, REQ, DATA] {
+ type const[CLASS, int8]
+ req const[REQ, int8]
+ len bytesize[data, int32]
+ data DATA
+} [packed]
+
+# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
+# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
+# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
+
+# USB device, configuration, interface and endpoint descriptors for the HID device class.
+# Modelled after the Logitech K120 keyboard.
+
+usb_device_descriptor_hid {
+ inner usb_device_descriptor_t[0, 0, 0, 0x46d, 0xc31c, 64, array[usb_config_descriptor_hid, 1]]
+} [packed]
+
+usb_config_descriptor_hid {
+ inner usb_config_descriptor_t[const[USB_CONFIG_HID_ATTRIBUTES, int8], array[usb_interface_descriptor_hid, 1]]
+} [packed]
+
+usb_interface_descriptor_hid {
+ inner usb_interface_descriptor_t[USB_CLASS_HID, USB_INTERFACE_SUBCLASS_BOOT, USB_INTERFACE_PROTOCOL_KEYBOARD, hid_descriptor_hid, array[usb_endpoint_descriptor_hid, 1]]
+} [packed]
+
+usb_endpoint_descriptor_hid {
+ inner usb_endpoint_descriptor_t[const[USB_ENDPOINT_HID_ADDRESS, int8], const[USB_ENDPOINT_HID_ATTRIBUTES, int8], array[usb_endpoint_extra_descriptor, 0:2]]
+} [packed]
+
+define USB_CONFIG_HID_ATTRIBUTES (USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_WAKEUP)
+define USB_ENDPOINT_HID_ADDRESS (1 | USB_DIR_IN)
+define USB_ENDPOINT_HID_ATTRIBUTES (USB_ENDPOINT_XFER_INT)
+
+# TODO: consider merging with vusb_descriptors.
+vusb_descriptors_hid {
+ len len[parent, int32]
+ generic ptr[in, vusb_descriptor_generic]
+ string ptr[in, vusb_descriptor_t[USB_TYPE_STANDARD, USB_DT_STRING, usb_string_descriptor]]
+ hid_report ptr[in, vusb_descriptor_t[USB_TYPE_STANDARD, HID_DT_REPORT, hid_descriptor_report]]
+ bos ptr[in, vusb_descriptor_t[USB_TYPE_STANDARD, USB_DT_BOS, usb_bos_descriptor]]
+} [packed]
+
+# TODO: consider merging with vusb_responses.
+vusb_responses_hid {
+ len len[parent, int32]
+ generic ptr[in, vusb_response_generic]
+ set_idle ptr[in, vusb_response_t[USB_TYPE_CLASS, HID_REQ_SET_IDLE, void]]
+ set_report ptr[in, vusb_response_t[USB_TYPE_CLASS, HID_REQ_SET_REPORT, void]]
+ set_protocol ptr[in, vusb_response_t[USB_TYPE_CLASS, HID_REQ_SET_PROTOCOL, void]]
+} [packed]
+
+# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
+# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
+# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
+
+# USB descriptors requested by the kernel before the SET_CONFIGURATION request.
+
usb_string_descriptor {
bLength len[parent, int8]
bDescriptorType const[USB_DT_STRING, int8]
@@ -152,11 +271,11 @@ usb_qualifier_descriptor {
bLength len[parent, int8]
bDescriptorType const[USB_DT_DEVICE_QUALIFIER, int8]
- bcdUSB int16
+ bcdUSB flags[usb_versions, int16]
bDeviceClass int8
bDeviceSubClass int8
bDeviceProtocol int8
- bMaxPacketSize0 int8
+ bMaxPacketSize0 flags[usb_max_packet_sizes, int8]
bNumConfigurations int8
bRESERVED const[0, int8]
} [packed]
@@ -505,7 +624,6 @@ usb_cdc_mbim_extended_desc {
# USB descriptors requested after the SET_CONFIGURATION request.
# TODO: define recusively to generate proper structures.
-
hid_descriptor_report {
items array[hid_report_item]
} [packed]
@@ -623,67 +741,3 @@ usb_cdc_ncm_ntb_parameters {
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
-
-vusb_descriptors {
- len len[parent, int32]
- generic ptr[in, vusb_descriptor_generic]
- string ptr[in, vusb_descriptor_t[USB_TYPE_STANDARD, USB_DT_STRING, usb_string_descriptor]]
- hid_report ptr[in, vusb_descriptor_t[USB_TYPE_STANDARD, HID_DT_REPORT, hid_descriptor_report]]
- bos ptr[in, vusb_descriptor_t[USB_TYPE_STANDARD, USB_DT_BOS, usb_bos_descriptor]]
- hub_hs ptr[in, vusb_descriptor_t[USB_TYPE_STANDARD, USB_DT_HUB, usb_hub_descriptor_hs]]
- hub_ss ptr[in, vusb_descriptor_t[USB_TYPE_STANDARD, USB_DT_SS_HUB, usb_hub_descriptor_ss]]
-} [packed]
-
-vusb_descriptor_generic {
- req_type flags[usb_request_types, int8]
- desc_type flags[usb_descriptor_types, int8]
- len bytesize[data, int32]
- data usb_generic_descriptor
-} [packed]
-
-usb_request_types = USB_TYPE_STANDARD, USB_TYPE_CLASS, USB_TYPE_VENDOR
-
-type vusb_descriptor_t[CLASS, REQ, DATA] {
- type const[CLASS, int8]
- req const[REQ, int8]
- len bytesize[data, int32]
- data DATA
-} [packed]
-
-# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
-# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
-# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
-
-vusb_responses {
- len len[parent, int32]
- generic ptr[in, vusb_response_generic]
- set_interface ptr[in, vusb_response_t[USB_TYPE_STANDARD, USB_REQ_SET_INTERFACE, void]]
- get_interface ptr[in, vusb_response_t[USB_TYPE_CLASS, USB_REQ_GET_INTERFACE, int8]]
- set_configuration ptr[in, vusb_response_t[USB_TYPE_STANDARD, USB_REQ_SET_CONFIGURATION, void]]
- get_configuration ptr[in, vusb_response_t[USB_TYPE_CLASS, USB_REQ_GET_CONFIGURATION, int8]]
- get_status_hub ptr[in, vusb_response_t[USB_TYPE_CLASS, USB_REQ_GET_STATUS, usb_hub_status]]
- get_status_port ptr[in, vusb_response_t[USB_TYPE_CLASS, USB_REQ_GET_STATUS, usb_port_status]]
- aiptek_get_report ptr[in, vusb_response_t[USB_TYPE_VENDOR, 0x1, array[int8, 3]]]
- aiptek_set_report ptr[in, vusb_response_t[USB_TYPE_VENDOR, 0x9, array[int8, 3]]]
- cdc_get_ntb_parameters ptr[in, vusb_response_t[USB_TYPE_CLASS, USB_CDC_GET_NTB_PARAMETERS, usb_cdc_ncm_ntb_parameters]]
-} [packed]
-
-vusb_response_generic {
- type flags[usb_request_types, int8]
- req flags[usb_requests, int8]
- len bytesize[data, int32]
- data array[int8]
-} [packed]
-
-usb_requests = USB_REQ_GET_STATUS, USB_REQ_CLEAR_FEATURE, USB_REQ_SET_FEATURE, USB_REQ_SET_ADDRESS, USB_REQ_GET_DESCRIPTOR, USB_REQ_SET_DESCRIPTOR, USB_REQ_GET_CONFIGURATION, USB_REQ_SET_CONFIGURATION, USB_REQ_GET_INTERFACE, USB_REQ_SET_INTERFACE, USB_REQ_SYNCH_FRAME, USB_REQ_SET_SEL, USB_REQ_SET_ISOCH_DELAY, USB_REQ_SET_ENCRYPTION, USB_REQ_GET_ENCRYPTION, USB_REQ_RPIPE_ABORT, USB_REQ_SET_HANDSHAKE, USB_REQ_RPIPE_RESET, USB_REQ_GET_HANDSHAKE, USB_REQ_SET_CONNECTION, USB_REQ_SET_SECURITY_DATA, USB_REQ_GET_SECURITY_DATA, USB_REQ_SET_WUSB_DATA, USB_REQ_LOOPBACK_DATA_WRITE, USB_REQ_LOOPBACK_DATA_READ, USB_REQ_SET_INTERFACE_DS, USB_REQ_GET_PARTNER_PDO, USB_REQ_GET_BATTERY_STATUS, USB_REQ_SET_PDO, USB_REQ_GET_VDM, USB_REQ_SEND_VDM
-
-type vusb_response_t[CLASS, REQ, DATA] {
- type const[CLASS, int8]
- req const[REQ, int8]
- len bytesize[data, int32]
- data DATA
-} [packed]
-
-# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
-# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
-# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
generated by ggit (джигит) mrf-deployment (git 2.46.0) at 2026-03-21 10:31:59 +0000