X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/9b255608898be5d43e958c8041127dfc399538c7..refs/pull/566/head:/client/flasher.c

diff --git a/client/flasher.c b/client/flasher.c
index ebcd3391..f257d994 100644
--- a/client/flasher.c
+++ b/client/flasher.c
@@ -1,369 +1,164 @@
-#include <usb.h>
+//-----------------------------------------------------------------------------
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
+// Flasher frontend tool
+//-----------------------------------------------------------------------------
+
 #include <stdio.h>
-#include <unistd.h>
 #include <stdlib.h>
-#include <stdint.h>
-#include <stdbool.h>
-#include <strings.h>
 #include <string.h>
-#include <errno.h>
-#include <ctype.h>
-
-#include "prox.h"
+#include <inttypes.h>
 #include "proxmark3.h"
+#include "util.h"
+#include "util_posix.h"
+#include "flash.h"
+#include "uart.h"
+#include "usb_cmd.h"
+
+#ifdef _WIN32
+# define unlink(x)
+#else
+# include <unistd.h>
+#endif
 
-static uint32_t ExpectedAddr;
-static uint8_t QueuedToSend[256];
-static bool AllWritten;
-#define PHYSICAL_FLASH_START 0x100000
-unsigned int current_command = CMD_UNKNOWN;
-
-void WaitForAck(void) {
-	UsbCommand ack;
-	ReceiveCommand(&ack);
-	if(ack.cmd != CMD_ACK) {
-		printf("bad ACK\n");
-		exit(-1);
-	}
+static serial_port sp;
+static char* serial_port_name;
+
+void cmd_debug(UsbCommand* UC) {
+  //  Debug
+  printf("UsbCommand length[len=%zd]\n",sizeof(UsbCommand));
+  printf("  cmd[len=%zd]: %016" PRIx64 "\n",sizeof(UC->cmd),UC->cmd);
+  printf(" arg0[len=%zd]: %016" PRIx64 "\n",sizeof(UC->arg[0]),UC->arg[0]);
+  printf(" arg1[len=%zd]: %016" PRIx64 "\n",sizeof(UC->arg[1]),UC->arg[1]);
+  printf(" arg2[len=%zd]: %016" PRIx64 "\n",sizeof(UC->arg[2]),UC->arg[2]);
+  printf(" data[len=%zd]: ",sizeof(UC->d.asBytes));
+  for (size_t i=0; i<16; i++) {
+    printf("%02x",UC->d.asBytes[i]);
+  }
+  printf("...\n");
 }
 
-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));
-
-	printf("expected = %08x flush, ", ExpectedAddr);
-
-	int i;
-	for(i = 0; i < 240; i += 48) {
-		c.cmd = CMD_SETUP_WRITE;
-		memcpy(c.d.asBytes, QueuedToSend+i, 48);
-		c.arg[0] = (i/4);
-		SendCommand(&c);
-		WaitForAck();
-	}
-
-	c.cmd = CMD_FINISH_WRITE;
-	c.arg[0] = (ExpectedAddr-1) & (~255);
-	if(translate) {
-		c.arg[0] -= PHYSICAL_FLASH_START;
-	}
-	printf("c.arg[0] = %08x\r", c.arg[0]);
-	memcpy(c.d.asBytes, QueuedToSend+240, 16);
-	SendCommand(&c);
-	WaitForAck();
-
-	AllWritten = true;
+void SendCommand(UsbCommand* txcmd) {
+//  printf("send: ");
+//  cmd_debug(txcmd);
+  if (!uart_send(sp,(byte_t*)txcmd,sizeof(UsbCommand))) {
+    printf("Sending bytes to proxmark failed\n");
+    exit(1);
+  }
 }
 
-/* Where must be between start_addr (inclusive) and end_addr (exclusive).
- */
-static void GotByte(uint32_t where, uint8_t 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);
-		exit(-1);
-	}
-	QueuedToSend[where & 255] = which;
-	ExpectedAddr++;
+void ReceiveCommand(UsbCommand* rxcmd) {
+  byte_t* prxcmd = (byte_t*)rxcmd;
+  byte_t* prx = prxcmd;
+  size_t rxlen;
+  while (true) {
+    if (uart_receive(sp, prx, sizeof(UsbCommand) - (prx-prxcmd), &rxlen)) {
+      prx += rxlen;
+      if ((prx-prxcmd) >= sizeof(UsbCommand)) {
+        return;
+      }
+    }
+  }
+}
 
-	if((where & 255) == 255) {
-		// we have completed a full page
-		FlushPrevious(translate);
-	}
+void CloseProxmark() {
+  // Clean up the port
+  uart_close(sp);
+  // Fix for linux, it seems that it is extremely slow to release the serial port file descriptor /dev/*
+  unlink(serial_port_name);
 }
 
-static int HexVal(int c)
-{
-	c = tolower(c);
-	if(c >= '0' && c <= '9') {
-		return c - '0';
-	} else if(c >= 'a' && c <= 'f') {
-		return (c - 'a') + 10;
-	} else {
-		printf("bad hex digit '%c'\n", c);
-		exit(-1);
-	}
+int OpenProxmark(size_t i) {
+  sp = uart_open(serial_port_name);
+  if (sp == INVALID_SERIAL_PORT || sp == CLAIMED_SERIAL_PORT) {
+    //poll once a second
+    return 0;
+  }
+  return 1;
 }
 
-static uint8_t HexByte(char *s)
+static void usage(char *argv0)
 {
-	return (HexVal(s[0]) << 4) | HexVal(s[1]);
+	fprintf(stderr, "Usage:   %s <port> [-b] image.elf [image.elf...]\n\n", argv0);
+	fprintf(stderr, "\t-b\tEnable flashing of bootloader area (DANGEROUS)\n\n");
+	//Is the example below really true? /Martin
+	fprintf(stderr, "Example:\n\n\t %s path/to/osimage.elf path/to/fpgaimage.elf\n", argv0);
+	fprintf(stderr, "\nExample (Linux):\n\n\t %s  /dev/ttyACM0 armsrc/obj/fullimage.elf\n", argv0);
+	fprintf(stderr, "\nNote (Linux): if the flasher gets stuck in 'Waiting for Proxmark to reappear on <DEVICE>',\n");
+	fprintf(stderr, "              you need to blacklist proxmark for modem-manager - see wiki for more details:\n");
+	fprintf(stderr, "              http://code.google.com/p/proxmark3/wiki/Linux\n\n");
 }
 
-static void LoadFlashFromSRecords(const char *file, int start_addr, int end_addr, int translate)
-{
-	ExpectedAddr = start_addr;
-	
-	FILE *f = fopen(file, "r");
-	if(!f) {
-		printf("couldn't open file\n");
-		exit(-1);
-	}
+#define MAX_FILES 4
 
-	char line[512];
-	while(fgets(line, sizeof(line), f)) {
-		if(memcmp(line, "S3", 2)==0) {
-			char *s = line + 2;
-			int len = HexByte(s) - 5;
-			s += 2;
+int main(int argc, char **argv)
+{
+	int can_write_bl = 0;
+	int num_files = 0;
+	int res;
+	flash_file_t files[MAX_FILES];
 
-			char addrStr[9];
-			memcpy(addrStr, s, 8);
-			addrStr[8] = '\0';
-			uint32_t 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;
+	memset(files, 0, sizeof(files));
 
-			int i;
-			for(i = 0; i < len; i++) {
-				while((addr+i) > ExpectedAddr) {
-					GotByte(ExpectedAddr, 0xff, start_addr, end_addr, translate);
-				}
-				GotByte(addr+i, HexByte(s), start_addr, end_addr, translate);
-				s += 2;
-			}
-		}
+	if (argc < 3) {
+		usage(argv[0]);
+		return -1;
 	}
 
-	if(!AllWritten) FlushPrevious(translate);
-
-	fclose(f);
-	printf("\ndone.\n");
-}
-
-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.arg[0] = p->start;
-		c.arg[1] = p->end;
-		
-		/* Only send magic when flashing bootrom */
-		if(p->precious) {
-			c.arg[2] = START_FLASH_MAGIC;
+	for (int i = 2; i < argc; i++) {
+		if (argv[i][0] == '-') {
+			if (!strcmp(argv[i], "-b")) {
+				can_write_bl = 1;
+			} else {
+				usage(argv[0]);
+				return -1;
+			}
 		} else {
-			c.arg[2] = 0;
+			res = flash_load(&files[num_files], argv[i], can_write_bl);
+			if (res < 0) {
+				fprintf(stderr, "Error while loading %s\n", argv[i]);
+				return -1;
+			}
+			fprintf(stderr, "\n");
+			num_files++;
 		}
-		SendCommand(&c);
-		WaitForAck();
-		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;
-}
 
-static unsigned int GetProxmarkState(void)
-{
-	unsigned int state = 0;
-	
-	UsbCommand c;
-	c.cmd = CMD_DEVICE_INFO;
-	SendCommand(&c);
-	
-	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.arg[0];
-		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;
-}
+  serial_port_name = argv[1];
+  
+  fprintf(stderr,"Waiting for Proxmark to appear on %s",serial_port_name);
+  do {
+    msleep(1000);
+    fprintf(stderr, ".");
+  } while (!OpenProxmark(0));
+  fprintf(stderr," Found.\n");
 
-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);
-			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);
-			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);
+	res = flash_start_flashing(can_write_bl,serial_port_name);
+	if (res < 0)
+		return -1;
 
-		while(!(devh=OpenProxmark(0))) { sleep(1); }
-		fprintf(stderr,"Found.\n");
+	fprintf(stderr, "\nFlashing...\n");
 
-		return GetProxmarkState();
+	for (int i = 0; i < num_files; i++) {
+		res = flash_write(&files[i]);
+		if (res < 0)
+			return -1;
+		flash_free(&files[i]);
+		fprintf(stderr, "\n");
 	}
-	
-	return 0;
-}
 
-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]);
-}
-
-/* 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;
-}
-
-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, "Resetting hardware...\n");
 
-	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);
+	res = flash_stop_flashing();
+	if (res < 0)
+		return -1;
 
 	CloseProxmark();
 
-	fprintf(stderr,"Have a nice day!\n");
+	fprintf(stderr, "All done.\n\n");
+	fprintf(stderr, "Have a nice day!\n");
 
 	return 0;
 }