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This commit is contained in:
iceman1001
2026-07-06 23:21:00 +02:00
parent 9256181945
commit af2980c753
1 changed files with 11 additions and 7 deletions
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bootrom/bootrom.c
+11 -7
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@@ -173,15 +173,16 @@ static void UsbPacketReceived(uint8_t *packet) {
uint8_t *base = NULL;
bool raw_address_mode = ((flags & READ_MEM_DOWNLOAD_FLAG_RAW) == READ_MEM_DOWNLOAD_FLAG_RAW);
if (!raw_address_mode) {
if (raw_address_mode == false) {
base = (uint8_t *) _flash_start;
size_t flash_size = get_flash_size();
// Boundary check the offset.
if (offset > flash_size)
if (offset > flash_size) {
isok = false;
}
// Clip the length if it goes past the end of the flash memory.
count = MIN(count, flash_size - offset);
@@ -190,23 +191,26 @@ static void UsbPacketReceived(uint8_t *packet) {
// Allow reading from any memory address and length in special 'raw' mode.
base = NULL;
// Boundary check against end of addressable space.
if (offset > 0)
if (offset > 0) {
count = MIN(count, -offset);
}
}
if (isok) {
for (size_t pos = 0; pos < count; pos += PM3_CMD_DATA_SIZE) {
size_t len = MIN((count - pos), PM3_CMD_DATA_SIZE);
isok = 0 == reply_old(CMD_READ_MEM_DOWNLOADED, pos, len, 0, &base[offset + pos], len);
if (!isok)
isok = (0 == reply_old(CMD_READ_MEM_DOWNLOADED, pos, len, 0, &base[offset + pos], len));
if (!isok) {
break;
}
}
}
if (isok)
if (isok) {
reply_old(CMD_ACK, 1, 0, 0, 0, 0);
else
} else {
reply_old(CMD_NACK, 0, 0, 0, 0, 0);
}
LED_B_OFF();
break;