diff options
| author | Andrey Konovalov <andreyknvl@google.com> | 2020-05-13 19:48:00 +0200 |
|---|---|---|
| committer | Andrey Konovalov <andreyknvl@gmail.com> | 2020-05-15 16:30:32 +0200 |
| commit | 8a9f1e7dbdb76a9c0af0dc6e3e75e446a7838dc8 (patch) | |
| tree | 1863b21867cc76a68b88dea31c832ac658f75527 | |
| parent | 55efafca377a08f2bc5509eb7eda3568ae9cde4e (diff) | |
executor, sys/linux: syz_usb_ep_read/write accept endpoint address
This patch changes syz_usb_ep_read/write pseudo-syscalls to accept endpoint
address as specified in its endpoint descriptor, instead of endpoint index.
| -rw-r--r-- | executor/common_usb.h | 17 | ||||
| -rw-r--r-- | executor/common_usb_linux.h | 57 | ||||
| -rw-r--r-- | pkg/csource/generated.go | 66 | ||||
| -rw-r--r-- | sys/linux/test/vusb_ath9k | 2 | ||||
| -rw-r--r-- | sys/linux/test/vusb_cdc_ecm | 2 | ||||
| -rw-r--r-- | sys/linux/test/vusb_cdc_ncm | 2 | ||||
| -rw-r--r-- | sys/linux/test/vusb_hid | 6 | ||||
| -rw-r--r-- | sys/linux/vusb.txt | 22 |
8 files changed, 133 insertions, 41 deletions
diff --git a/executor/common_usb.h b/executor/common_usb.h index 0722750b7..f14d6b9b1 100644 --- a/executor/common_usb.h +++ b/executor/common_usb.h @@ -9,20 +9,33 @@ #define USB_MAX_EP_NUM 32 #define USB_MAX_FDS 6 +struct usb_endpoint_index { + // Copy of the endpoint descriptor: + struct usb_endpoint_descriptor desc; + // Raw Gadget endpoint handle used for this endpoint (Linux only): + int handle; +}; + struct usb_iface_index { + // Pointer to where the original interface descriptor is stored: struct usb_interface_descriptor* iface; + // Cached copied of some of the interface attributes: uint8 bInterfaceNumber; uint8 bAlternateSetting; uint8 bInterfaceClass; - struct usb_endpoint_descriptor eps[USB_MAX_EP_NUM]; + // Endpoint indexes: + struct usb_endpoint_index eps[USB_MAX_EP_NUM]; int eps_num; }; struct usb_device_index { + // Pointer to where the original descriptors are stored: struct usb_device_descriptor* dev; struct usb_config_descriptor* config; + // Cached copied of some of the device attributes: uint8 bDeviceClass; uint8 bMaxPower; + // Config and interface attributes/indexes: int config_length; struct usb_iface_index ifaces[USB_MAX_IFACE_NUM]; int ifaces_num; @@ -75,7 +88,7 @@ static bool parse_usb_descriptor(const char* buffer, size_t length, struct usb_d struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1]; debug("parse_usb_descriptor: found endpoint #%u at %p\n", iface->eps_num, buffer + offset); if (iface->eps_num < USB_MAX_EP_NUM) { - memcpy(&iface->eps[iface->eps_num], buffer + offset, sizeof(iface->eps[iface->eps_num])); + memcpy(&iface->eps[iface->eps_num].desc, buffer + offset, sizeof(iface->eps[iface->eps_num].desc)); iface->eps_num++; } } diff --git a/executor/common_usb_linux.h b/executor/common_usb_linux.h index ff549b2d4..935b30df2 100644 --- a/executor/common_usb_linux.h +++ b/executor/common_usb_linux.h @@ -170,6 +170,24 @@ static int lookup_interface(int fd, uint8 bInterfaceNumber, uint8 bAlternateSett } #endif // SYZ_EXECUTOR || __NR_syz_usb_control_io +#if SYZ_EXECUTOR || __NR_syz_usb_ep_write || __NR_syz_usb_ep_read +static int lookup_endpoint(int fd, uint8 bEndpointAddress) +{ + struct usb_device_index* index = lookup_usb_index(fd); + int ep; + + if (!index) + return -1; + if (index->iface_cur < 0) + return -1; + + for (ep = 0; index->ifaces[index->iface_cur].eps_num; ep++) + if (index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress == bEndpointAddress) + return index->ifaces[index->iface_cur].eps[ep].handle; + return -1; +} +#endif // SYZ_EXECUTOR || __NR_syz_usb_ep_write || __NR_syz_usb_ep_read + static void set_interface(int fd, int n) { struct usb_device_index* index = lookup_usb_index(fd); @@ -180,21 +198,26 @@ static void set_interface(int fd, int n) if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) { for (ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) { - int rv = usb_raw_ep_disable(fd, ep); + int rv = usb_raw_ep_disable(fd, index->ifaces[index->iface_cur].eps[ep].handle); if (rv < 0) { - debug("set_interface: failed to disable endpoint %d\n", ep); + debug("set_interface: failed to disable endpoint 0x%02x\n", + index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress); } else { - debug("set_interface: endpoint %d disabled\n", ep); + debug("set_interface: endpoint 0x%02x disabled\n", + index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress); } } } if (n >= 0 && n < index->ifaces_num) { for (ep = 0; ep < index->ifaces[n].eps_num; ep++) { - int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep]); + int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc); if (rv < 0) { - debug("set_interface: failed to enable endpoint %d\n", ep); + debug("set_interface: failed to enable endpoint 0x%02x\n", + index->ifaces[n].eps[ep].desc.bEndpointAddress); } else { - debug("set_interface: endpoint %d enabled as %d\n", ep, rv); + debug("set_interface: endpoint 0x%02x enabled as %d\n", + index->ifaces[n].eps[ep].desc.bEndpointAddress, rv); + index->ifaces[n].eps[ep].handle = rv; } } index->iface_cur = n; @@ -496,12 +519,19 @@ static volatile long syz_usb_control_io(volatile long a0, volatile long a1, vola static volatile long syz_usb_ep_write(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; - uint16 ep = a1; + uint8 ep = a1; uint32 len = a2; char* data = (char*)a3; + int ep_handle = lookup_endpoint(fd, ep); + if (ep_handle < 0) { + debug("syz_usb_ep_write: endpoint not found\n"); + return -1; + } + debug("syz_usb_ep_write: endpoint handle: %d\n", ep_handle); + struct usb_raw_ep_io_data io_data; - io_data.inner.ep = ep; + io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); @@ -524,12 +554,19 @@ static volatile long syz_usb_ep_write(volatile long a0, volatile long a1, volati static volatile long syz_usb_ep_read(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; - uint16 ep = a1; + uint8 ep = a1; uint32 len = a2; char* data = (char*)a3; + int ep_handle = lookup_endpoint(fd, ep); + if (ep_handle < 0) { + debug("syz_usb_ep_read: endpoint not found\n"); + return -1; + } + debug("syz_usb_ep_read: endpoint handle: %d\n", ep_handle); + struct usb_raw_ep_io_data io_data; - io_data.inner.ep = ep; + io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); diff --git a/pkg/csource/generated.go b/pkg/csource/generated.go index e2b61d070..8d1c8e6ce 100644 --- a/pkg/csource/generated.go +++ b/pkg/csource/generated.go @@ -2430,12 +2430,17 @@ static long syz_extract_tcp_res(volatile long a0, volatile long a1, volatile lon #define USB_MAX_EP_NUM 32 #define USB_MAX_FDS 6 +struct usb_endpoint_index { + struct usb_endpoint_descriptor desc; + int handle; +}; + struct usb_iface_index { struct usb_interface_descriptor* iface; uint8 bInterfaceNumber; uint8 bAlternateSetting; uint8 bInterfaceClass; - struct usb_endpoint_descriptor eps[USB_MAX_EP_NUM]; + struct usb_endpoint_index eps[USB_MAX_EP_NUM]; int eps_num; }; @@ -2496,7 +2501,7 @@ static bool parse_usb_descriptor(const char* buffer, size_t length, struct usb_d struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1]; debug("parse_usb_descriptor: found endpoint #%u at %p\n", iface->eps_num, buffer + offset); if (iface->eps_num < USB_MAX_EP_NUM) { - memcpy(&iface->eps[iface->eps_num], buffer + offset, sizeof(iface->eps[iface->eps_num])); + memcpy(&iface->eps[iface->eps_num].desc, buffer + offset, sizeof(iface->eps[iface->eps_num].desc)); iface->eps_num++; } } @@ -3364,6 +3369,24 @@ static int lookup_interface(int fd, uint8 bInterfaceNumber, uint8 bAlternateSett } #endif +#if SYZ_EXECUTOR || __NR_syz_usb_ep_write || __NR_syz_usb_ep_read +static int lookup_endpoint(int fd, uint8 bEndpointAddress) +{ + struct usb_device_index* index = lookup_usb_index(fd); + int ep; + + if (!index) + return -1; + if (index->iface_cur < 0) + return -1; + + for (ep = 0; index->ifaces[index->iface_cur].eps_num; ep++) + if (index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress == bEndpointAddress) + return index->ifaces[index->iface_cur].eps[ep].handle; + return -1; +} +#endif + static void set_interface(int fd, int n) { struct usb_device_index* index = lookup_usb_index(fd); @@ -3374,21 +3397,26 @@ static void set_interface(int fd, int n) if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) { for (ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) { - int rv = usb_raw_ep_disable(fd, ep); + int rv = usb_raw_ep_disable(fd, index->ifaces[index->iface_cur].eps[ep].handle); if (rv < 0) { - debug("set_interface: failed to disable endpoint %d\n", ep); + debug("set_interface: failed to disable endpoint 0x%02x\n", + index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress); } else { - debug("set_interface: endpoint %d disabled\n", ep); + debug("set_interface: endpoint 0x%02x disabled\n", + index->ifaces[index->iface_cur].eps[ep].desc.bEndpointAddress); } } } if (n >= 0 && n < index->ifaces_num) { for (ep = 0; ep < index->ifaces[n].eps_num; ep++) { - int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep]); + int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc); if (rv < 0) { - debug("set_interface: failed to enable endpoint %d\n", ep); + debug("set_interface: failed to enable endpoint 0x%02x\n", + index->ifaces[n].eps[ep].desc.bEndpointAddress); } else { - debug("set_interface: endpoint %d enabled as %d\n", ep, rv); + debug("set_interface: endpoint 0x%02x enabled as %d\n", + index->ifaces[n].eps[ep].desc.bEndpointAddress, rv); + index->ifaces[n].eps[ep].handle = rv; } } index->iface_cur = n; @@ -3686,12 +3714,19 @@ static volatile long syz_usb_control_io(volatile long a0, volatile long a1, vola static volatile long syz_usb_ep_write(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; - uint16 ep = a1; + uint8 ep = a1; uint32 len = a2; char* data = (char*)a3; + int ep_handle = lookup_endpoint(fd, ep); + if (ep_handle < 0) { + debug("syz_usb_ep_write: endpoint not found\n"); + return -1; + } + debug("syz_usb_ep_write: endpoint handle: %d\n", ep_handle); + struct usb_raw_ep_io_data io_data; - io_data.inner.ep = ep; + io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); @@ -3714,12 +3749,19 @@ static volatile long syz_usb_ep_write(volatile long a0, volatile long a1, volati static volatile long syz_usb_ep_read(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { int fd = a0; - uint16 ep = a1; + uint8 ep = a1; uint32 len = a2; char* data = (char*)a3; + int ep_handle = lookup_endpoint(fd, ep); + if (ep_handle < 0) { + debug("syz_usb_ep_read: endpoint not found\n"); + return -1; + } + debug("syz_usb_ep_read: endpoint handle: %d\n", ep_handle); + struct usb_raw_ep_io_data io_data; - io_data.inner.ep = ep; + io_data.inner.ep = ep_handle; io_data.inner.flags = 0; if (len > sizeof(io_data.data)) len = sizeof(io_data.data); diff --git a/sys/linux/test/vusb_ath9k b/sys/linux/test/vusb_ath9k index bd095a9cb..a728664f0 100644 --- a/sys/linux/test/vusb_ath9k +++ b/sys/linux/test/vusb_ath9k @@ -1,4 +1,4 @@ # requires: -repeat r0 = syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000080)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48, 0x1, 0x1, 0x0, 0x80, 0xfa, {{0x9, 0x4, 0x0, 0x0, 0x6, 0xff, 0x0, 0x0, 0x0, "", {{0x9, 0x5, 0x1, 0x2, 0x200, 0x0, 0x0, 0x0, ""}, {0x9, 0x5, 0x82, 0x2, 0x200, 0x0, 0x0, 0x0, ""}, {0x9, 0x5, 0x83, 0x3, 0x40, 0x1, 0x0, 0x0, ""}, {0x9, 0x5, 0x4, 0x3, 0x40, 0x1, 0x0, 0x0, ""}, {0x9, 0x5, 0x5, 0x2, 0x200, 0x0, 0x0, 0x0, ""}, {0x9, 0x5, 0x6, 0x2, 0x200, 0x0, 0x0, 0x0, ""}}}}}}]}}, 0x0) -syz_usb_ep_write$ath9k_ep2(r0, 0x2, 0x10, &(0x7f0000000000)=@ready={0x0, 0x0, 0x8, 'BBBB', {0x1, 0x0, 0x0, 0x0, 0x0}}) +syz_usb_ep_write$ath9k_ep2(r0, 0x83, 0x10, &(0x7f0000000000)=@ready={0x0, 0x0, 0x8, 'BBBB', {0x1, 0x0, 0x0, 0x0, 0x0}}) diff --git a/sys/linux/test/vusb_cdc_ecm b/sys/linux/test/vusb_cdc_ecm index 848158cc4..d6997255c 100644 --- a/sys/linux/test/vusb_cdc_ecm +++ b/sys/linux/test/vusb_cdc_ecm @@ -4,4 +4,4 @@ r0 = syz_usb_connect$cdc_ecm(0x0, 0x4d, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x2, syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0) syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0) syz_usb_control_io$cdc_ecm(r0, &(0x7f0000000080)={0x14, 0x0, &(0x7f0000000040)={0x0, 0x3, 0x1a, {0x1a, 0x3, {0x3400320034003200, 0x3400320034003200, 0x3400320034003200}}}}, 0x0) -syz_usb_ep_write(r0, 0x0, 0x5, &(0x7f0000002340)='hello') +syz_usb_ep_write(r0, 0x82, 0x5, &(0x7f0000002340)='hello') diff --git a/sys/linux/test/vusb_cdc_ncm b/sys/linux/test/vusb_cdc_ncm index f360a6dd3..4ffdb5efa 100644 --- a/sys/linux/test/vusb_cdc_ncm +++ b/sys/linux/test/vusb_cdc_ncm @@ -6,4 +6,4 @@ syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0) syz_usb_control_io$cdc_ncm(r0, 0x0, &(0x7f0000000340)={0x44, 0x0, 0x0, 0x0, &(0x7f0000000200)={0x20, 0x80, 0x1c, {0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10}}, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0) syz_usb_control_io$cdc_ncm(r0, &(0x7f0000000080)={0x14, 0x0, &(0x7f0000000040)={0x0, 0x3, 0x1a, {0x1a, 0x3, {0x3400320034003200, 0x3400320034003200, 0x3400320034003200}}}}, 0x0) -syz_usb_ep_write(r0, 0x0, 0x5, &(0x7f0000002340)='hello') +syz_usb_ep_write(r0, 0x82, 0x5, &(0x7f0000002340)='hello') diff --git a/sys/linux/test/vusb_hid b/sys/linux/test/vusb_hid index de77a8dc2..b092470f9 100644 --- a/sys/linux/test/vusb_hid +++ b/sys/linux/test/vusb_hid @@ -3,6 +3,6 @@ r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000018105e04da07000000000001090224000100000000090400000903000000092100000001222200090581030800000000"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)={0x0, 0x22, 0x22, {[@global=@item_012={0x2, 0x1, 0x9, "2313"}, @global=@item_012={0x2, 0x1, 0x0, "e53f"}, @global=@item_4={0x3, 0x1, 0x0, '\f\x00'}, @local=@item_012={0x2, 0x2, 0x2, "9000"}, @global=@item_4={0x3, 0x1, 0x0, "0900be00"}, @main=@item_4={0x3, 0x0, 0x8, '\x00'}, @local=@item_4={0x3, 0x2, 0x0, "09007a15"}, @local=@item_4={0x3, 0x2, 0x0, "5d8c3dda"}]}}, 0x0}, 0x0) -syz_usb_ep_write(r0, 0x0, 0x7, &(0x7f0000000000)='BBBBBBB') -syz_usb_ep_write(r0, 0x0, 0x7, &(0x7f0000000000)='BBBBBBB') -syz_usb_ep_write(r0, 0x0, 0x7, &(0x7f0000000000)='BBBBBBB') +syz_usb_ep_write(r0, 0x81, 0x7, &(0x7f0000000000)='BBBBBBB') +syz_usb_ep_write(r0, 0x81, 0x7, &(0x7f0000000000)='BBBBBBB') +syz_usb_ep_write(r0, 0x81, 0x7, &(0x7f0000000000)='BBBBBBB') diff --git a/sys/linux/vusb.txt b/sys/linux/vusb.txt index af3bb02db..4597bce93 100644 --- a/sys/linux/vusb.txt +++ b/sys/linux/vusb.txt @@ -24,8 +24,8 @@ resource fd_usb[int32]: -1 # 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 (timeout[3000], prog_timeout[3000]) syz_usb_control_io(fd fd_usb, descs ptr[in, vusb_descriptors], resps ptr[in, vusb_responses]) (timeout[300]) -syz_usb_ep_write(fd fd_usb, ep int16[0:31], len len[data], data ptr[in, array[int8, 0:256]]) (timeout[300]) -syz_usb_ep_read(fd fd_usb, ep int16[0:31], len len[data], data buffer[out]) (timeout[300]) +syz_usb_ep_write(fd fd_usb, ep int8, len len[data], data ptr[in, array[int8, 0:256]]) (timeout[300]) +syz_usb_ep_read(fd fd_usb, ep int8, len len[data], data buffer[out]) (timeout[300]) syz_usb_disconnect(fd fd_usb) (timeout[300]) 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 @@ -1334,11 +1334,18 @@ vusb_responses_uac1 { include <drivers/net/wireless/ath/ath9k/htc_hst.h> include <drivers/net/wireless/ath/ath9k/hif_usb.h> +define USB_ENDPOINT_ATH9K_BULK_OUT_ADDRESS (1) +define USB_ENDPOINT_ATH9K_BULK_IN_ADDRESS (2 | USB_DIR_IN) +define USB_ENDPOINT_ATH9K_INT_IN_ADDRESS (3 | USB_DIR_IN) +define USB_ENDPOINT_ATH9K_INT_OUT_ADDRESS (4) +define USB_ENDPOINT_ATH9K_BULK_EXTRA1_ADDRESS (5) +define USB_ENDPOINT_ATH9K_BULK_EXTRA2_ADDRESS (6) + resource fd_usb_ath9k[fd_usb] syz_usb_connect_ath9k(speed const[USB_SPEED_HIGH], dev_len len[dev], dev ptr[in, usb_device_descriptor_ath9k], conn_descs const[0]) fd_usb_ath9k (timeout[3000], prog_timeout[3000]) -syz_usb_ep_write$ath9k_ep1(fd fd_usb_ath9k, ep const[0x1], len bytesize[data], data ptr[in, ath9k_bulk_frame]) (timeout[300]) -syz_usb_ep_write$ath9k_ep2(fd fd_usb_ath9k, ep const[0x2], len bytesize[data], data ptr[in, htc_frame]) (timeout[300]) +syz_usb_ep_write$ath9k_ep1(fd fd_usb_ath9k, ep const[USB_ENDPOINT_ATH9K_BULK_IN_ADDRESS], len bytesize[data], data ptr[in, ath9k_bulk_frame]) (timeout[300]) +syz_usb_ep_write$ath9k_ep2(fd fd_usb_ath9k, ep const[USB_ENDPOINT_ATH9K_INT_IN_ADDRESS], len bytesize[data], data ptr[in, htc_frame]) (timeout[300]) usb_device_descriptor_ath9k { inner usb_device_descriptor_fixed_t[0x200, USB_CLASS_VENDOR_SPEC, USB_SUBCLASS_VENDOR_SPEC, 0xff, 64, 0xcf3, 0x9271, 0x108, array[usb_config_descriptor_ath9k, 1]] @@ -1361,13 +1368,6 @@ usb_endpoint_descriptors_ath9k { bulk_extra2 usb_endpoint_descriptor_fixed_t[USB_ENDPOINT_ATH9K_BULK_EXTRA2_ADDRESS, USB_ENDPOINT_ATH9K_BULK_ATTRIBUTES, 512, 0, void] } [packed] -define USB_ENDPOINT_ATH9K_BULK_OUT_ADDRESS (1) -define USB_ENDPOINT_ATH9K_BULK_IN_ADDRESS (2 | USB_DIR_IN) -define USB_ENDPOINT_ATH9K_INT_IN_ADDRESS (3 | USB_DIR_IN) -define USB_ENDPOINT_ATH9K_INT_OUT_ADDRESS (4) -define USB_ENDPOINT_ATH9K_BULK_EXTRA1_ADDRESS (5) -define USB_ENDPOINT_ATH9K_BULK_EXTRA2_ADDRESS (6) - define USB_ENDPOINT_ATH9K_BULK_ATTRIBUTES (USB_ENDPOINT_XFER_BULK) define USB_ENDPOINT_ATH9K_INT_ATTRIBUTES (USB_ENDPOINT_XFER_INT) |
