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chore(core): Disable wait_random() for prodtest and VCP.

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This commit is contained in:
Andrew Kozlik 2024-04-29 18:45:17 +02:00 committed by Andrew Kozlik
parent 45a973b8f9
commit 62e3a414ad
2 changed files with 2 additions and 4 deletions
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2
core/embed/trezorhal/stm32f4/random_delays.c
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@ -193,6 +193,7 @@ void rdi_handler(uint32_t uw_tick) {
* against fault injection.
*/
void wait_random(void) {
#ifndef TREZOR_PRODTEST
int wait = drbg_random8();
volatile int i = 0;
volatile int j = wait;
@ -207,4 +208,5 @@ void wait_random(void) {
if (i != wait || j != 0) {
shutdown_privileged();
}
#endif
}

4
core/embed/trezorhal/stm32f4/usb.c
View File

@ -490,7 +490,6 @@ static uint8_t usb_class_setup(USBD_HandleTypeDef *dev,
wait_random();
return usb_hid_class_setup(dev, &usb_ifaces[req->wIndex].hid, req);
case USB_IFACE_TYPE_VCP:
wait_random();
return usb_vcp_class_setup(dev, &usb_ifaces[req->wIndex].vcp, req);
case USB_IFACE_TYPE_WEBUSB:
wait_random();
@ -516,7 +515,6 @@ static uint8_t usb_class_data_in(USBD_HandleTypeDef *dev, uint8_t ep_num) {
usb_hid_class_data_in(dev, &usb_ifaces[i].hid, ep_num);
break;
case USB_IFACE_TYPE_VCP:
wait_random();
usb_vcp_class_data_in(dev, &usb_ifaces[i].vcp, ep_num);
break;
case USB_IFACE_TYPE_WEBUSB:
@ -541,7 +539,6 @@ static uint8_t usb_class_data_out(USBD_HandleTypeDef *dev, uint8_t ep_num) {
usb_hid_class_data_out(dev, &usb_ifaces[i].hid, ep_num);
break;
case USB_IFACE_TYPE_VCP:
wait_random();
usb_vcp_class_data_out(dev, &usb_ifaces[i].vcp, ep_num);
break;
case USB_IFACE_TYPE_WEBUSB:
@ -559,7 +556,6 @@ static uint8_t usb_class_sof(USBD_HandleTypeDef *dev) {
for (int i = 0; i < USBD_MAX_NUM_INTERFACES; i++) {
switch (usb_ifaces[i].type) {
case USB_IFACE_TYPE_VCP:
wait_random();
usb_vcp_class_sof(dev, &usb_ifaces[i].vcp);
break;
default: