andy/tinyUSB
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

check max_len for vendor and hid

Browse Source
This commit is contained in:
hathach
2020-05-28 14:44:26 +07:00
parent fb214f7cf7
commit 53b749fd72
2 changed files with 8 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
src/class/hid/hid_device.c
View File

@@ -162,8 +162,9 @@ uint16_t hidd_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint1
{
TU_VERIFY(TUSB_CLASS_HID == desc_itf->bInterfaceClass, 0);
// max length is at least interface + hid descriptor + 1 endpoint
TU_ASSERT(max_len >= sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + sizeof(tusb_desc_endpoint_t), 0);
// len = interface + hid + n*endpoints
uint16_t const drv_len = sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + desc_itf->bNumEndpoints*sizeof(tusb_desc_endpoint_t);
TU_ASSERT(max_len >= drv_len, 0);
// Find available interface
hidd_interface_t * p_hid = NULL;
@@ -205,7 +206,7 @@ uint16_t hidd_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint1
}
}
return sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + desc_itf->bNumEndpoints*sizeof(tusb_desc_endpoint_t);
return drv_len;
}
// Handle class control request