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itf passed to vendord_open is larger than tusb_desc_interface.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2022-01-02 19:30:08 +01:00
parent b217740e58
commit 9229b4b3d3
1 changed files with 10 additions and 8 deletions
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18
hsm2040.c
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@@ -8,6 +8,7 @@
// Pico
#include "pico/stdlib.h"
#include <stdlib.h>
// For memcpy
#include <string.h>
@@ -249,14 +250,15 @@ static void ccid_reset_cb(uint8_t rhport) {
}
static uint16_t ccid_open(uint8_t rhport, tusb_desc_interface_t const *itf_desc, uint16_t max_len) {
tusb_desc_interface_t itf_vendor;
uint8_t *itf_vendor = (uint8_t *)malloc(sizeof(uint8_t)*max_len);
TU_LOG2("-------- CCID OPEN\r\n");
TU_VERIFY(itf_desc->bInterfaceClass == TUSB_CLASS_SMART_CARD && itf_desc->bInterfaceSubClass == 0 && itf_desc->bInterfaceProtocol == 0, 0);
//vendord_open expects a CLASS_VENDOR interface class
memcpy(&itf_vendor, itf_desc, sizeof(tusb_desc_interface_t));
itf_vendor.bInterfaceClass = TUSB_CLASS_VENDOR_SPECIFIC;
vendord_open(rhport, &itf_vendor, max_len);
memcpy(itf_vendor, itf_desc, sizeof(uint8_t)*max_len);
((tusb_desc_interface_t *)itf_vendor)->bInterfaceClass = TUSB_CLASS_VENDOR_SPECIFIC;
vendord_open(rhport, (tusb_desc_interface_t *)itf_vendor, max_len);
free(itf_vendor);
uint16_t const drv_len = sizeof(tusb_desc_interface_t) + sizeof(class_desc_ccid_t) + 2*sizeof(tusb_desc_endpoint_t);
TU_VERIFY(max_len >= drv_len, 0);
@@ -1317,9 +1319,9 @@ static void ccid_tx_done ()
}
}
static int usb_event_handle()
static int usb_event_handle(struct ccid *c)
{
if (tud_vendor_n_write_available(0) == CFG_TUD_VENDOR_TX_BUFSIZE)
if (c->tx_busy == 1 && tud_vendor_n_write_available(0) == CFG_TUD_VENDOR_TX_BUFSIZE)
{
ccid_tx_done ();
}
@@ -1327,7 +1329,7 @@ static int usb_event_handle()
{
uint32_t count = tud_vendor_read(endp1_rx_buf, sizeof(endp1_rx_buf));
ccid_rx_ready(count);
TU_LOG2("-------- RECEIVED %d, %x %x %x",count,buf[0],buf[1],buf[2]);
TU_LOG2("-------- RECEIVED %d, %x %x %x",count,endp1_rx_buf[0],endp1_rx_buf[1],endp1_rx_buf[2]);
}
return 0;
}
@@ -1357,7 +1359,7 @@ void ccid_task(void)
// connected and there are data available
if (tud_vendor_available() || tud_vendor_n_write_available(0) == CFG_TUD_VENDOR_TX_BUFSIZE)
{
if (usb_event_handle () == 0)
if (usb_event_handle (c) == 0)
return;
if (c->application)
{