ble: fewer version parts

Author: NickeZ

bitbox-da14531-firmware.o

@@ -956,7 +956,7 @@ static bool _devdevice_enter(secbool_u32 firmware_verified)
     bool res = memory_spi_get_active_ble_firmware_version(&version);
     if (res) {
         char buf[50];
-        snprintf(buf, sizeof(buf), "ble fw: %d.%d.%d", version.major, version.minor, version.patch);
+        snprintf(buf, sizeof(buf), "ble: %d (%s)", version.version, util_dbg_hex(version.hash, 4));
         UG_PutString(0, SCREEN_HEIGHT - 18, buf, false);
     }
 #endif

src/bootloader/bootloader.c

@@ -47,8 +47,8 @@
 
 // We commit to the BLE firmware hash here to avoid accidentally installing an unexpected firmware.
 static const uint8_t _allowed_ble_fw_hash[32] =
-    "\x6d\x9e\x19\xe4\x94\x31\x0b\x73\x0b\xfe\x22\x8a\x4d\xdc\x50\x3b\xee\xd1\x5f\xa1\x28\xd2\xea"
-    "\x35\x44\x6f\xb8\xad\x35\x02\xac\x7a";
+    "\x18\xca\x5a\xcb\x3a\x60\x2f\x89\xb2\x65\x25\xdb\xff\x1c\x4f\x07\x60\x3d\x76\x70\xd2\xf5\x4e"
+    "\x7a\x76\xfb\x1f\x9c\x4b\x29\x66\x4f";
 
 // 65 bytes uncompressed secp256k1 root attestation pubkey.
 #define ROOT_PUBKEY_SIZE 65

src/factorysetup.c

@@ -76,6 +76,8 @@ USE_RESULT bool memory_spi_get_active_ble_firmware_version(struct da14531_firmwa
     memcpy((uint8_t*)version, firmware, sizeof(struct da14531_firmware_version));
     free(firmware);
 
+    ASSERT(version->version == 1);
+
     if (version->version == 1) {
         return true;
     }

src/memory/memory_spi.c

@@ -53,12 +53,9 @@ USE_RESULT bool memory_spi_get_active_ble_firmware(
 
 // This struct is always placed at 0x110 in the firmware
 struct da14531_firmware_version {
-    uint8_t version; // The version of the format of this struct.
-    uint16_t major;
-    uint16_t minor;
-    uint16_t patch;
+    uint8_t metadata_version; // The version of the format of this struct.
+    uint16_t version; // The version of the firmware
     uint8_t hash[20];
-    uint8_t modified;
 } __attribute__((packed));
 
 USE_RESULT bool memory_spi_get_active_ble_firmware_version(

src/memory/memory_spi.h

@@ -27,7 +27,7 @@ use alloc::vec::Vec;
 
 use bitbox02::{memory, spi_mem};
 
-const ALLOWED_HASH: &[u8; 32] = b"\x6d\x9e\x19\xe4\x94\x31\x0b\x73\x0b\xfe\x22\x8a\x4d\xdc\x50\x3b\xee\xd1\x5f\xa1\x28\xd2\xea\x35\x44\x6f\xb8\xad\x35\x02\xac\x7a";
+const ALLOWED_HASH: &[u8; 32] = b"\x18\xca\x5a\xcb\x3a\x60\x2f\x89\xb2\x65\x25\xdb\xff\x1c\x4f\x07\x60\x3d\x76\x70\xd2\xf5\x4e\x7a\x76\xfb\x1f\x9c\x4b\x29\x66\x4f";
 
 // We want to write FW to the memory chip in erase-size chunks, so that we don't repeatedly need to
 // read-erase-write the same sector.

src/rust/bitbox02-rust/src/hww/api/bluetooth.rs

@@ -35,12 +35,8 @@ pub fn get_active_ble_firmware_version() -> Result<String, ()> {
             true => {
                 let ble_fw_version = ble_fw_version.assume_init();
                 // Copy to avoid taking references to unaligned struct fields.
-                let (major, minor, patch) = (
-                    ble_fw_version.major,
-                    ble_fw_version.minor,
-                    ble_fw_version.patch,
-                );
-                Ok(format!("{}.{}.{}", major, minor, patch))
+                let version = ble_fw_version.version;
+                Ok(format!("{}", version))
             }
             false => Err(()),
         }