static DWORD ExpectedAddr;
static BYTE QueuedToSend[256];
static BOOL AllWritten;
+#define PHYSICAL_FLASH_START 0x100000
-static void FlushPrevious(void)
+struct partition {
+ int start;
+ int end;
+ int precious;
+ const char *name;
+};
+struct partition partitions[] = {
+ {0x100000, 0x102000, 1, "bootrom"},
+ {0x102000, 0x110000, 0, "fpga"},
+ {0x110000, 0x140000, 0, "os"},
+};
+
+/* If translate is set, subtract PHYSICAL_FLASH_START to translate for old
+ * bootroms.
+ */
+static void FlushPrevious(int translate)
{
UsbCommand c;
memset(&c, 0, sizeof(c));
c.cmd = CMD_FINISH_WRITE;
c.ext1 = (ExpectedAddr-1) & (~255);
+ if(translate) {
+ c.ext1 -= PHYSICAL_FLASH_START;
+ }
printf("c.ext1 = %08x\r", c.ext1);
memcpy(c.d.asBytes, QueuedToSend+240, 16);
SendCommand(&c, TRUE);
AllWritten = TRUE;
}
-static void GotByte(DWORD where, BYTE which)
+/* Where must be between start_addr (inclusive) and end_addr (exclusive).
+ */
+static void GotByte(DWORD where, BYTE which, int start_addr, int end_addr, int translate)
{
AllWritten = FALSE;
+
+ if(where < start_addr || where >= end_addr) {
+ printf("bad: got byte at %08x, outside of range %08x-%08x\n", where, start_addr, end_addr);
+ exit(-1);
+ }
if(where != ExpectedAddr) {
printf("bad: got at %08x, expected at %08x\n", where, ExpectedAddr);
if((where & 255) == 255) {
// we have completed a full page
- FlushPrevious();
+ FlushPrevious(translate);
}
}
return (HexVal(s[0]) << 4) | HexVal(s[1]);
}
-static void LoadFlashFromSRecords(char *file, int addr)
+static void LoadFlashFromSRecords(const char *file, int start_addr, int end_addr, int translate)
{
- ExpectedAddr = addr;
-
+ ExpectedAddr = start_addr;
+
FILE *f = fopen(file, "r");
if(!f) {
printf("couldn't open file\n");
DWORD addr;
sscanf(addrStr, "%x", &addr);
s += 8;
+
+ /* Accept files that are located at PHYSICAL_FLASH_START, and files that are located at 0 */
+ if(addr < PHYSICAL_FLASH_START)
+ addr += PHYSICAL_FLASH_START;
int i;
for(i = 0; i < len; i++) {
while((addr+i) > ExpectedAddr) {
- GotByte(ExpectedAddr, 0xff);
+ GotByte(ExpectedAddr, 0xff, start_addr, end_addr, translate);
}
- GotByte(addr+i, HexByte(s));
+ GotByte(addr+i, HexByte(s), start_addr, end_addr, translate);
s += 2;
}
}
}
- if(!AllWritten) FlushPrevious();
+ if(!AllWritten) FlushPrevious(translate);
fclose(f);
printf("\ndone.\n");
}
-int main(int argc, char **argv) {
- unsigned int addr = 0;
- UsbCommand c;
+static int PrepareFlash(struct partition *p, const char *filename, unsigned int state)
+{
+ int translate = 0;
+ if(state & DEVICE_INFO_FLAG_UNDERSTANDS_START_FLASH) {
+ UsbCommand c;
+ c.cmd = CMD_START_FLASH;
+ c.ext1 = p->start;
+ c.ext2 = p->end;
+
+ /* Only send magic when flashing bootrom */
+ if(p->precious) {
+ c.ext3 = START_FLASH_MAGIC;
+ } else {
+ c.ext3 = 0;
+ }
+ SendCommand(&c, TRUE);
+ translate = 0;
+ } else {
+ fprintf(stderr, "Warning: Your bootloader does not understand the new START_FLASH command\n");
+ fprintf(stderr, " It is recommended that you update your bootloader\n\n");
+ translate = 1;
+ }
+
+ LoadFlashFromSRecords(filename, p->start, p->end, translate);
+ return 1;
+}
- if (argc != 3) {
- fprintf(stderr,"Usage: %s {bootrom|os|fpga} image.s19\n", argv[0]);
- exit(EXIT_FAILURE);
+static unsigned int GetProxmarkState(void)
+{
+ unsigned int state = 0;
+
+ UsbCommand c;
+ c.cmd = CMD_DEVICE_INFO;
+ SendCommand(&c, FALSE);
+
+ UsbCommand resp;
+ ReceiveCommand(&resp);
+ /* Three cases:
+ * 1. The old bootrom code will ignore CMD_DEVICE_INFO, but respond with an ACK
+ * 2. The old os code will respond with CMD_DEBUG_PRINT_STRING and "unknown command"
+ * 3. The new bootrom and os codes will respond with CMD_DEVICE_INFO and flags
+ */
+
+ switch(resp.cmd) {
+ case CMD_ACK:
+ state = DEVICE_INFO_FLAG_CURRENT_MODE_BOOTROM;
+ break;
+ case CMD_DEBUG_PRINT_STRING:
+ state = DEVICE_INFO_FLAG_CURRENT_MODE_OS;
+ break;
+ case CMD_DEVICE_INFO:
+ state = resp.ext1;
+ break;
+ default:
+ fprintf(stderr, "Couldn't get proxmark state, bad response type: 0x%04X\n", resp.cmd);
+ exit(-1);
+ break;
}
+
+#if 0
+ if(state & DEVICE_INFO_FLAG_BOOTROM_PRESENT) printf("New bootrom present\n");
+ if(state & DEVICE_INFO_FLAG_OSIMAGE_PRESENT) printf("New osimage present\n");
+ if(state & DEVICE_INFO_FLAG_CURRENT_MODE_BOOTROM) printf("Currently in bootrom\n");
+ if(state & DEVICE_INFO_FLAG_CURRENT_MODE_OS) printf("Currently in OS\n");
+#endif
+
+ return state;
+}
- if (!strcmp(argv[1],"bootrom")) {
- addr = 0;
- } else if (!strcmp(argv[1],"os")) {
- addr = 0x10000;
- } else if (!strcmp(argv[1],"fpga")) {
- addr = 0x2000;
- } else {
- fprintf(stderr,"Unknown action '%s'!\n", argv[1]);
- exit(EXIT_FAILURE);
+static unsigned int EnterFlashState(void)
+{
+ unsigned int state = GetProxmarkState();
+
+ if(state & DEVICE_INFO_FLAG_CURRENT_MODE_BOOTROM) {
+ /* Already in flash state, we're done. */
+ return state;
}
+
+ if(state & DEVICE_INFO_FLAG_CURRENT_MODE_OS) {
+ fprintf(stderr,"Entering flash-mode...\n");
+ UsbCommand c;
+ bzero(&c, sizeof(c));
+
+ if( (state & DEVICE_INFO_FLAG_BOOTROM_PRESENT) && (state & DEVICE_INFO_FLAG_OSIMAGE_PRESENT) ) {
+ /* New style handover: Send CMD_START_FLASH, which will reset the board and
+ * enter the bootrom on the next boot.
+ */
+ c.cmd = CMD_START_FLASH;
+ SendCommand(&c, FALSE);
+ fprintf(stderr,"(You don't have to do anything. Press and release the button only if you want to abort)\n");
+ fprintf(stderr,"Waiting for Proxmark to reappear on USB... ");
+ } else {
+ /* Old style handover: Ask the user to press the button, then reset the board */
+ c.cmd = CMD_HARDWARE_RESET;
+ SendCommand(&c, FALSE);
+ fprintf(stderr,"(Press and hold down button NOW if your bootloader requires it)\n");
+ fprintf(stderr,"Waiting for Proxmark to reappear on USB... ");
+ }
+
+ CloseProxmark();
+ sleep(1);
- usb_init();
+ while(!(devh=OpenProxmark(0))) { sleep(1); }
+ fprintf(stderr,"Found.\n");
- fprintf(stderr,"Waiting for Proxmark to appear on USB...\n");
- while(!(devh=OpenProxmark(0))) { sleep(1); }
- fprintf(stderr,"Found...\n");
+ return GetProxmarkState();
+ }
+
+ return 0;
+}
- fprintf(stderr,"Entering flash-mode...\n");
- bzero(&c, sizeof(c));
- c.cmd = CMD_START_FLASH;
- SendCommand(&c, FALSE);
- CloseProxmark();
- sleep(1);
+static void usage(char **argv)
+{
+ int i;
+ fprintf(stderr, "Usage: %s areas image [image [image]]\n", argv[0]);
+ fprintf(stderr, " areas is a comma-separated list of areas to flash, with no spaces\n");
+ fprintf(stderr, " Known areas are:");
+ for(i=0; i<(sizeof(partitions)/sizeof(partitions[0])); i++) {
+ fprintf(stderr, " %s", partitions[i].name);
+ }
+ fprintf(stderr, "\n");
+ fprintf(stderr, " image is the path to the corresponding image\n\n");
+ fprintf(stderr, "Example: %s os,fpga path/to/osimage.s19 path/to/fpgaimage.s19\n", argv[0]);
+}
- fprintf(stderr,"Waiting for Proxmark to reappear on USB...\n");
- while(!(devh=OpenProxmark(0))) { sleep(1); }
- fprintf(stderr,"Found...\n");
+/* On first call, have *offset = -1, *length = 0; */
+static int find_next_area(const char *str, int *offset, int *length)
+{
+ if(*str == '\0') return 0;
+ if((*offset >= 0) && str[*offset + *length] == '\0') return 0;
+ *offset += 1 + *length;
+
+ char *next_comma = strchr(str + *offset, ',');
+ if(next_comma == NULL) {
+ *length = strlen(str) - *offset;
+ } else {
+ *length = next_comma-(str+*offset);
+ }
+ return 1;
+}
- LoadFlashFromSRecords(argv[2], addr);
+int main(int argc, char **argv) {
+ if(argc < 2) {
+ usage(argv);
+ exit(-1);
+ }
+
+ /* Count area arguments */
+ int areas = 0, offset=-1, length=0;
+ while(find_next_area(argv[1], &offset, &length)) areas++;
+
+ if(areas != argc - 2) {
+ usage(argv);
+ exit(-1);
+ }
+
+ usb_init();
+ fprintf(stderr,"Waiting for Proxmark to appear on USB... ");
+ while(!(devh=OpenProxmark(0))) { sleep(1); }
+ fprintf(stderr,"Found.\n");
+
+ unsigned int state = EnterFlashState();
+
+ if( !(state & DEVICE_INFO_FLAG_CURRENT_MODE_BOOTROM) ) {
+ fprintf(stderr, "Proxmark would not enter flash state, abort\n");
+ exit(-1);
+ }
+
+ offset=-1; length=0;
+ int current_area = 0;
+ while(find_next_area(argv[1], &offset, &length)) {
+ int i;
+ struct partition *p = NULL;
+ for(i=0; i<sizeof(partitions)/sizeof(partitions[0]); i++) {
+ if(strncmp(partitions[i].name, argv[1] + offset, length) == 0) {
+ /* Check if the name matches the bootrom partition, and if so, require "bootrom" to
+ * be written in full. The other names may be abbreviated.
+ */
+ if(!partitions[i].precious || (strlen(partitions[i].name) == length)) {
+ p = &partitions[i];
+ }
+ break;
+ }
+ }
+
+ if(p == NULL) {
+ fprintf(stderr, "Warning: area name '");
+ fwrite(argv[1]+offset, length, 1, stderr);
+ fprintf(stderr, "' unknown, ignored\n");
+ } else {
+ fprintf(stderr, "Flashing %s from %s\n", p->name, argv[2+current_area]);
+ PrepareFlash(p, argv[2+current_area], state);
+ }
+ current_area++;
+ }
+
+ UsbCommand c;
bzero(&c, sizeof(c));
c.cmd = CMD_HARDWARE_RESET;
SendCommand(&c, FALSE);
projects / proxmark3-svn / blobdiff