small improvements

targets/stm32l442/Makefile

@@ -12,17 +12,17 @@ all-locked:
 	$(MAKE) -f application.mk -j8 solo.hex EXTRA_DEFINES='-DFLASH_ROP=2'
 
 debugboot-app:
-	$(MAKE) -f application.mk -j8 solo.hex DEBUG=1 \
+	$(MAKE) -f application.mk -j8 solo.hex DEBUG=2 \
 	LDSCRIPT=linker/stm32l4xx_extra.ld EXTRA_DEFINES='-DAPPLICATION_START_PAGE=16 -DSOLO_HACKER'
 
 debugboot-boot:
 	$(MAKE) -f bootloader.mk -j8 bootloader.hex DEBUG=1 \
 	LDSCRIPT=linker/bootloader_stm32l4xx_extra.ld EXTRA_DEFINES='-DAPPLICATION_START_PAGE=16 -DSOLO_HACKER'
 
-boot:
+boot-sig-checking:
-	$(MAKE) -f bootloader.mk -j8 bootloader.hex DEBUG=$(DEBUG)
+	$(MAKE) -f bootloader.mk -j8 bootloader.hex
 
-boot-hacker:
+boot-no-sig:
 	$(MAKE) -f bootloader.mk -j8 bootloader.hex EXTRA_DEFINES='-DSOLO_HACKER'
 
 clean:

targets/stm32l442/bootloader/main.c

@@ -114,10 +114,10 @@ int main(int argc, char * argv[])
     }
     else
     {
+
         printf1(TAG_RED,"Not authorized to boot (%08x == %08lx)\r\n", AUTH_WORD_ADDR, *(uint32_t*)AUTH_WORD_ADDR);
     }
     start_bootloader:
-
     usbhid_init();
     printf1(TAG_GEN,"init usb\n");
 
@@ -155,7 +155,7 @@ int main(int argc, char * argv[])
             device_reboot();
         }
 #ifdef SOLO_HACKER
-        // Boot ST bootloader if button is held for 2s
+        // Boot ST bootloader if button is held for 5s
         if (!device_is_button_pressed())
         {
             stboot_time = millis();

targets/stm32l442/merge_hex.py

@@ -59,6 +59,14 @@ for i in range(2, len(args)-1):
     print('merging %s with ' % (args[1]), args[i])
     first.merge(IntelHex( args[i] ), overlap = 'replace')
 
+first [ flash_addr(APPLICATION_END_PAGE-1) ] = 0x41
+first [ flash_addr(APPLICATION_END_PAGE-1)+1 ] = 0x41
+
+first[AUTH_WORD_ADDR-4]   = 0
+first[AUTH_WORD_ADDR-1] = 0
+first[AUTH_WORD_ADDR-2] = 0
+first[AUTH_WORD_ADDR-3] = 0
+
 first[AUTH_WORD_ADDR]   = 0
 first[AUTH_WORD_ADDR+1] = 0
 first[AUTH_WORD_ADDR+2] = 0
@@ -69,6 +77,7 @@ first[AUTH_WORD_ADDR+5] = 0xff
 first[AUTH_WORD_ADDR+6] = 0xff
 first[AUTH_WORD_ADDR+7] = 0xff
 
+
 if secret_attestation_key is not None:
     key = unhexlify(secret_attestation_key)
 

targets/stm32l442/src/device.c

@@ -124,6 +124,22 @@ void usb_init(void);
 void usbhid_init()
 {
     usb_init();
+
+#if DEBUG_LEVEL>1
+    wait_for_usb_tether();
+#endif
+
+}
+
+void wait_for_usb_tether()
+{
+    while (USBD_OK != CDC_Transmit_FS("tethered\r\n", 10) )
+        ;
+    while (USBD_OK != CDC_Transmit_FS("tethered\r\n", 10) )
+        ;
+    delay(10);
+    while (USBD_OK != CDC_Transmit_FS("tethered\r\n", 10) )
+        ;
 }
 
 int usbhid_recv(uint8_t * msg)

targets/stm32l442/src/init.c

@@ -210,7 +210,6 @@ void usb_init()
 
 
     USBD_Composite_Set_Classes(&USBD_HID, &USBD_CDC);
-    // USBD_Composite_Set_Classes(&USBD_CDC, &USBD_CDC);
     in_endpoint_to_class[HID_EPIN_ADDR & 0x7F] = 0;
     out_endpoint_to_class[HID_EPOUT_ADDR & 0x7F] = 0;
 

tools/solotool.py

@@ -170,7 +170,10 @@ class SoloClient():
 
         ret = data[0]
         if ret != CtapError.ERR.SUCCESS:
-            raise RuntimeError('Device returned non-success code %02x' % ret)
+            str = ''
+            if ret == CtapError.ERR.NOT_ALLOWED:
+                str = 'Out of bounds write'
+            raise RuntimeError('Device returned non-success code %02x: %s' % (ret,str))
 
         return data[1:]
 
@@ -184,7 +187,10 @@ class SoloClient():
 
         ret = res.signature[0]
         if ret != CtapError.ERR.SUCCESS:
-            raise RuntimeError('Device returned non-success code %02x' % ret)
+            str = ''
+            if ret == CtapError.ERR.NOT_ALLOWED:
+                str = 'Out of bounds write'
+            raise RuntimeError('Device returned non-success code %02x: %s' % (ret,str))
 
         return res.signature[1:]
 
@@ -506,7 +512,7 @@ def attempt_to_find_device(p):
     return found
 
 def attempt_to_boot_bootloader(p):
-    print('Bootloader not active.  Attempting to boot into bootloader mode...')
+
     try:
         p.enter_solo_bootloader()
     except OSError:
@@ -520,8 +526,8 @@ def attempt_to_boot_bootloader(p):
     print('Solo rebooted.  Reconnecting...')
     time.sleep(.500)
     if not attempt_to_find_device(p):
-        print('Failed to reconnect!')
+        raise RuntimeError('Failed to reconnect!')
-        sys.exit(1)
+
 
 def solo_main():
     parser = argparse.ArgumentParser()
@@ -636,10 +642,16 @@ def sign_main():
 
 def use_dfu(args):
     fw = args.__dict__['[firmware]']
-    dfu = DFUDevice()
+
-    try:
+    for i in range(0,8):
-        dfu.find(ser = args.dfu_serial)
+        dfu = DFUDevice()
-    except RuntimeError:
+        try:
+            dfu.find(ser = args.dfu_serial)
+        except RuntimeError:
+            time.sleep(0.25)
+            dfu = None
+
+    if dfu is None:
         print('No STU DFU device found. ')
         if args.dfu_serial:
             print('Serial number used: ', args.dfu_serial)
@@ -652,7 +664,7 @@ def use_dfu(args):
 
         chunk = 2048
         seg = ih.segments()[0]
-        size = sum([x[1] - x[0] for x in ih.segments()])
+        size = sum([max(x[1] - x[0],chunk) for x in ih.segments()])
         total = 0
         t1 = time.time()*1000
 
@@ -672,20 +684,27 @@ def use_dfu(args):
                 dfu.write_page(i,data)
                 total += chunk
                 progress = total/float(size)*100
+
                 sys.stdout.write('downloading %.2f%%  %08x - %08x ...         \r' % (progress,i,i+page))
                 # time.sleep(0.100)
 
             # print('done')
             # print(dfu.read_mem(i,16))
         t2 = time.time()*1000
-
+        print()
         print('time: %d ms' %(t2 - t1))
         print('verifying...')
+        progress = 0
         for start,end in ih.segments():
             for i in range(start, end, chunk):
                 data1 = (dfu.read_mem(i,2048))
                 data2 = ih.tobinarray(start=i,size = chunk)
-                assert(data1 == data2)
+                total += chunk
+                progress = total/float(size)*100
+                sys.stdout.write('reading %.2f%%  %08x - %08x ...         \r' % (progress,i,i+page))
+                if (end-start) == chunk:
+                    assert(data1 == data2)
+        print()
         print('firmware readback verified.')
     if args.detach:
         dfu.detach()
@@ -706,19 +725,31 @@ def programmer_main():
     parser.add_argument("--disable", action="store_true", help = 'Disable the Solo bootloader.  Cannot be undone.  No future updates can be applied.')
     parser.add_argument("--detach", action="store_true", help = 'Detach from ST DFU and boot from main flash.  Must be in DFU mode.')
     parser.add_argument("--dfu-serial", default='', help = 'Specify a serial number for a specific DFU device to connect to.')
+    parser.add_argument("--use-dfu", action="store_true", help = 'Boot to ST-DFU before continuing.')
     args = parser.parse_args()
 
     fw = args.__dict__['[firmware]']
 
     p = SoloClient()
+
+
+
     try:
         p.find_device()
+        if args.use_dfu:
+            print('entering dfu..')
+            try:
+                attempt_to_boot_bootloader(p)
+                p.enter_st_dfu()
+            except RuntimeError:
+                # already in DFU mode?
+                pass
     except RuntimeError:
+        print('No Solo device detected.')
         if fw or args.detach:
             use_dfu(args)
             sys.exit(0)
         else:
-            print('No Solo device detected.')
             sys.exit(1)
 
     if args.detach:
@@ -732,6 +763,7 @@ def programmer_main():
         p.set_reboot(False)
 
     if args.enter_bootloader:
+        print('Attempting to boot into bootloader mode...')
         attempt_to_boot_bootloader(p)
         sys.exit(0)
 
@@ -758,10 +790,12 @@ def programmer_main():
         p.version()
     except CtapError as e:
         if e.code == CtapError.ERR.INVALID_COMMAND:
+            print('Bootloader not active.  Attempting to boot into bootloader mode...')
             attempt_to_boot_bootloader(p)
         else:
             raise(e)
     except ApduError:
+        print('Bootloader not active.  Attempting to boot into bootloader mode...')
         attempt_to_boot_bootloader(p)
 
     if args.reset_only: