[proxmark3-svn] / client / flash.c

#ifdef WIN32
#include <windows.h>
#include <setupapi.h>
#include <ctype.h>
#define bzero(b,len) (memset((b), '\0', (len)), (void) 0)
BOOL UsbConnect(void);
#else
#include <usb.h>
#endif
#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"
#ifndef WIN32
#include "proxmark3.h"
#endif
#include "flash.h"
#include "elf.h"

static uint32_t ExpectedAddr;
static uint8_t QueuedToSend[256];
static bool AllWritten;
#define PHYSICAL_FLASH_START 0x100000
#define PHYSICAL_FLASH_END   0x200000

void WaitForAck(void) {
	UsbCommand ack;
	ReceiveCommand(&ack);
	if(ack.cmd != CMD_ACK) {
		printf("bad ACK\n");
		exit(-1);
	}
}

struct partition partitions[] = {
		{0x100000, 0x102000, 1, "bootrom"},
		{0x102000, 0x110000, 0, "fpga"},
		{0x110000, 0x140000, 0, "os"},
		{0, 0, 0, NULL},
};

void WriteBlock(unsigned int block_start, unsigned int len, unsigned char *buf)
{
	unsigned char temp_buf[256];
	if (block_start & 0xFF) {
		printf("moving stuff forward by %d bytes\n", block_start & 0xFF);
		memset(temp_buf, 0xFF, block_start & 0xFF);
		memcpy(temp_buf + (block_start & 0xFF), buf, len);
		block_start &= ~0xFF;
	} else memcpy(temp_buf, buf, len);
	
	UsbCommand c = {CMD_SETUP_WRITE};

	int i;
	for(i = 0; i < 240; i += 48) {
		memcpy(c.d.asBytes, temp_buf+i, 48);
		c.arg[0] = (i/4);
		SendCommand(&c);
		WaitForAck();
	}

	c.cmd = CMD_FINISH_WRITE;
	c.arg[0] = block_start;

//	printf("writing block %08x\r", c.arg[0]);
	memcpy(c.d.asBytes, temp_buf+240, 16);
	SendCommand(&c);
	WaitForAck();

	AllWritten = true;
}

void LoadFlashFromFile(const char *file, int start_addr, int end_addr)
{
	FILE *f = fopen(file, "rb");
	if(!f) {
		printf("couldn't open file\n");
		exit(-1);
	}

	char buf[4];
	fread(buf, 1, 4, f);
	if (memcmp(buf, "\x7F" "ELF", 4) == 0) {
		int i;
		fseek(f, 0, SEEK_SET);
		Elf32_Ehdr header;
		fread(&header, 1, sizeof(header), f);
		int count = header.e_phnum;
		printf("count=%d phoff=%x\n", count, header.e_phoff);
		Elf32_Phdr phdr;
		
		for (i=0; i<header.e_phnum; i++) {
			fseek(f, header.e_phoff + i * sizeof(Elf32_Phdr), SEEK_SET);
			fread(&phdr, 1, sizeof(phdr), f);
			printf("type=%d offset=%x paddr=%x vaddr=%x filesize=%x memsize=%x flags=%x align=%x\n",
				phdr.p_type, phdr.p_offset, phdr.p_paddr, phdr.p_vaddr, phdr.p_filesz, phdr.p_memsz, phdr.p_flags, phdr.p_align);
			if (phdr.p_type == PT_LOAD && phdr.p_filesz > 0 && phdr.p_paddr >= PHYSICAL_FLASH_START
				&& (phdr.p_paddr + phdr.p_filesz) < PHYSICAL_FLASH_END) {
				printf("flashing offset=%x paddr=%x size=%x\n", phdr.p_offset, phdr.p_paddr, phdr.p_filesz);
				if (phdr.p_offset == 0) {
					printf("skipping forward 0x2000 because of strange linker thing\n");
					phdr.p_offset += 0x2000;
					phdr.p_paddr += 0x2000;
					phdr.p_filesz -= 0x2000;
					phdr.p_memsz -= 0x2000;
				}

				fseek(f, phdr.p_offset, SEEK_SET);
				ExpectedAddr = phdr.p_paddr;
				while (ExpectedAddr < (phdr.p_paddr + phdr.p_filesz)) {
					unsigned int bytes_to_read = phdr.p_paddr + phdr.p_filesz - ExpectedAddr;
					if (bytes_to_read > 256)
						bytes_to_read=256;
					else
						memset(QueuedToSend, 0xFF, 256);
					fread(QueuedToSend, 1, bytes_to_read, f);
					printf("WriteBlock(%x, %d, %02x %02x %02x %02x %02x %02x %02x %02x ... %02x %02x %02x %02x %02x %02x %02x %02x)\n", ExpectedAddr, bytes_to_read,
							QueuedToSend[0], QueuedToSend[1], QueuedToSend[2], QueuedToSend[3],
							QueuedToSend[4], QueuedToSend[5], QueuedToSend[6], QueuedToSend[7],
							QueuedToSend[248], QueuedToSend[249], QueuedToSend[250], QueuedToSend[251],
							QueuedToSend[252], QueuedToSend[253], QueuedToSend[254], QueuedToSend[255]);
					WriteBlock(ExpectedAddr, 256, QueuedToSend);
					ExpectedAddr += bytes_to_read;
				}
            }
        }

		fclose(f);
		printf("\ndone.\n");
		return;
	} else printf("Bad file format\n");		
}

int PrepareFlash(struct partition *p, const char *filename, unsigned int state)
{
	if(state & DEVICE_INFO_FLAG_UNDERSTANDS_START_FLASH) {
		UsbCommand c = {CMD_START_FLASH, {p->start, p->end, 0}};
		
		/* Only send magic when flashing bootrom */
		if(p->precious)
			c.arg[2] = START_FLASH_MAGIC;
		else
			c.arg[2] = 0;

		SendCommand(&c);
		WaitForAck();
	} 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");
		exit(0);
	}
	
	LoadFlashFromFile(filename, p->start, p->end);
	return 1;
}

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;
	}
	
	return state;
}

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... ");
		}

#ifdef WIN32
		Sleep(1000);
		while(!UsbConnect()) { Sleep(1000); }
#else
		CloseProxmark();
		sleep(1);

		while(!(devh=OpenProxmark(0))) { sleep(1); }
#endif
		fprintf(stderr,"Found.\n");

		return GetProxmarkState();
	}
	
	return 0;
}

/* On first call, have *offset = -1, *length = 0; */
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;
}

void do_flash(char **argv) {
	unsigned int state = EnterFlashState();

	if (!(state & DEVICE_INFO_FLAG_CURRENT_MODE_BOOTROM)) {
		fprintf(stderr, "Proxmark would not enter flash state, abort\n");
		exit(-1);
	}

	int 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++;
	}
}
Commit	Line	Data
6e4d4ee6	1	#ifdef WIN32
	2	#include <windows.h>
	3	#include <setupapi.h>
	4	#include <ctype.h>
	5	#define bzero(b,len) (memset((b), '\0', (len)), (void) 0)
	6	BOOL UsbConnect(void);
	7	#else
	8	#include <usb.h>
	9	#endif
	10	#include <stdio.h>
	11	#include <unistd.h>
	12	#include <stdlib.h>
	13	#include <stdint.h>
	14	#include <stdbool.h>
	15	#include <strings.h>
	16	#include <string.h>
	17	#include <errno.h>
	18	#include <ctype.h>
	19
	20	#include "prox.h"
	21	#ifndef WIN32
	22	#include "proxmark3.h"
	23	#endif
	24	#include "flash.h"
2cab856f	25	#include "elf.h"
6e4d4ee6	26
	27	static uint32_t ExpectedAddr;
	28	static uint8_t QueuedToSend[256];
	29	static bool AllWritten;
	30	#define PHYSICAL_FLASH_START 0x100000
2cab856f	31	#define PHYSICAL_FLASH_END 0x200000
6e4d4ee6	32
	33	void WaitForAck(void) {
	34	UsbCommand ack;
	35	ReceiveCommand(&ack);
	36	if(ack.cmd != CMD_ACK) {
	37	printf("bad ACK\n");
	38	exit(-1);
	39	}
	40	}
	41
	42	struct partition partitions[] = {
	43	{0x100000, 0x102000, 1, "bootrom"},
	44	{0x102000, 0x110000, 0, "fpga"},
	45	{0x110000, 0x140000, 0, "os"},
	46	{0, 0, 0, NULL},
	47	};
	48
2cab856f	49	void WriteBlock(unsigned int block_start, unsigned int len, unsigned char *buf)
6e4d4ee6	50	{
2cab856f	51	unsigned char temp_buf[256];
	52	if (block_start & 0xFF) {
	53	printf("moving stuff forward by %d bytes\n", block_start & 0xFF);
	54	memset(temp_buf, 0xFF, block_start & 0xFF);
	55	memcpy(temp_buf + (block_start & 0xFF), buf, len);
	56	block_start &= ~0xFF;
	57	} else memcpy(temp_buf, buf, len);
	58
	59	UsbCommand c = {CMD_SETUP_WRITE};
6e4d4ee6	60
6e4d4ee6	61	int i;
6e4d4ee6	62	for(i = 0; i < 240; i += 48) {
2cab856f	63	memcpy(c.d.asBytes, temp_buf+i, 48);
6e4d4ee6	64	c.arg[0] = (i/4);
	65	SendCommand(&c);
	66	WaitForAck();
	67	}
	68
	69	c.cmd = CMD_FINISH_WRITE;
2cab856f	70	c.arg[0] = block_start;
2cab856f	71
815f3f25	72	// printf("writing block %08x\r", c.arg[0]);
2cab856f	73	memcpy(c.d.asBytes, temp_buf+240, 16);
6e4d4ee6	74	SendCommand(&c);
	75	WaitForAck();
	76
	77	AllWritten = true;
	78	}
	79
2cab856f	80	void LoadFlashFromFile(const char *file, int start_addr, int end_addr)
6e4d4ee6	81	{
2cab856f	82	FILE *f = fopen(file, "rb");
6e4d4ee6	83	if(!f) {
	84	printf("couldn't open file\n");
	85	exit(-1);
	86	}
	87
2cab856f	88	char buf[4];
	89	fread(buf, 1, 4, f);
	90	if (memcmp(buf, "\x7F" "ELF", 4) == 0) {
	91	int i;
	92	fseek(f, 0, SEEK_SET);
	93	Elf32_Ehdr header;
	94	fread(&header, 1, sizeof(header), f);
	95	int count = header.e_phnum;
	96	printf("count=%d phoff=%x\n", count, header.e_phoff);
	97	Elf32_Phdr phdr;
	98
	99	for (i=0; i<header.e_phnum; i++) {
	100	fseek(f, header.e_phoff + i * sizeof(Elf32_Phdr), SEEK_SET);
	101	fread(&phdr, 1, sizeof(phdr), f);
815f3f25	102	printf("type=%d offset=%x paddr=%x vaddr=%x filesize=%x memsize=%x flags=%x align=%x\n",
815f3f25	103	phdr.p_type, phdr.p_offset, phdr.p_paddr, phdr.p_vaddr, phdr.p_filesz, phdr.p_memsz, phdr.p_flags, phdr.p_align);
2cab856f	104	if (phdr.p_type == PT_LOAD && phdr.p_filesz > 0 && phdr.p_paddr >= PHYSICAL_FLASH_START
	105	&& (phdr.p_paddr + phdr.p_filesz) < PHYSICAL_FLASH_END) {
	106	printf("flashing offset=%x paddr=%x size=%x\n", phdr.p_offset, phdr.p_paddr, phdr.p_filesz);
	107	if (phdr.p_offset == 0) {
	108	printf("skipping forward 0x2000 because of strange linker thing\n");
	109	phdr.p_offset += 0x2000;
	110	phdr.p_paddr += 0x2000;
815f3f25	111	phdr.p_filesz -= 0x2000;
815f3f25	112	phdr.p_memsz -= 0x2000;
6e4d4ee6	113	}
6e4d4ee6	114
2cab856f	115	fseek(f, phdr.p_offset, SEEK_SET);
	116	ExpectedAddr = phdr.p_paddr;
	117	while (ExpectedAddr < (phdr.p_paddr + phdr.p_filesz)) {
	118	unsigned int bytes_to_read = phdr.p_paddr + phdr.p_filesz - ExpectedAddr;
815f3f25	119	if (bytes_to_read > 256)
	120	bytes_to_read=256;
	121	else
	122	memset(QueuedToSend, 0xFF, 256);
2cab856f	123	fread(QueuedToSend, 1, bytes_to_read, f);
815f3f25	124	printf("WriteBlock(%x, %d, %02x %02x %02x %02x %02x %02x %02x %02x ... %02x %02x %02x %02x %02x %02x %02x %02x)\n", ExpectedAddr, bytes_to_read,
	125	QueuedToSend[0], QueuedToSend[1], QueuedToSend[2], QueuedToSend[3],
	126	QueuedToSend[4], QueuedToSend[5], QueuedToSend[6], QueuedToSend[7],
	127	QueuedToSend[248], QueuedToSend[249], QueuedToSend[250], QueuedToSend[251],
	128	QueuedToSend[252], QueuedToSend[253], QueuedToSend[254], QueuedToSend[255]);
	129	WriteBlock(ExpectedAddr, 256, QueuedToSend);
2cab856f	130	ExpectedAddr += bytes_to_read;
	131	}
	132	}
	133	}
6e4d4ee6	134
2cab856f	135	fclose(f);
	136	printf("\ndone.\n");
	137	return;
	138	} else printf("Bad file format\n");
6e4d4ee6	139	}
	140
	141	int PrepareFlash(struct partition p, const char filename, unsigned int state)
	142	{
6e4d4ee6	143	if(state & DEVICE_INFO_FLAG_UNDERSTANDS_START_FLASH) {
2cab856f	144	UsbCommand c = {CMD_START_FLASH, {p->start, p->end, 0}};
6e4d4ee6	145
6e4d4ee6	146	/* Only send magic when flashing bootrom */
2cab856f	147	if(p->precious)
6e4d4ee6	148	c.arg[2] = START_FLASH_MAGIC;
2cab856f	149	else
6e4d4ee6	150	c.arg[2] = 0;
2cab856f	151
6e4d4ee6	152	SendCommand(&c);
6e4d4ee6	153	WaitForAck();
6e4d4ee6	154	} else {
	155	fprintf(stderr, "Warning: Your bootloader does not understand the new START_FLASH command\n");
	156	fprintf(stderr, " It is recommended that you update your bootloader\n\n");
2cab856f	157	exit(0);
6e4d4ee6	158	}
6e4d4ee6	159
2cab856f	160	LoadFlashFromFile(filename, p->start, p->end);
6e4d4ee6	161	return 1;
	162	}
	163
	164	unsigned int GetProxmarkState(void)
	165	{
	166	unsigned int state = 0;
	167
	168	UsbCommand c;
	169	c.cmd = CMD_DEVICE_INFO;
	170	SendCommand(&c);
	171
	172	UsbCommand resp;
	173	ReceiveCommand(&resp);
	174	/* Three cases:
	175	* 1. The old bootrom code will ignore CMD_DEVICE_INFO, but respond with an ACK
	176	* 2. The old os code will respond with CMD_DEBUG_PRINT_STRING and "unknown command"
	177	* 3. The new bootrom and os codes will respond with CMD_DEVICE_INFO and flags
	178	*/
	179
	180	switch(resp.cmd) {
	181	case CMD_ACK:
	182	state = DEVICE_INFO_FLAG_CURRENT_MODE_BOOTROM;
	183	break;
	184	case CMD_DEBUG_PRINT_STRING:
	185	state = DEVICE_INFO_FLAG_CURRENT_MODE_OS;
	186	break;
	187	case CMD_DEVICE_INFO:
	188	state = resp.arg[0];
	189	break;
	190	default:
	191	fprintf(stderr, "Couldn't get proxmark state, bad response type: 0x%04X\n", resp.cmd);
	192	exit(-1);
	193	break;
	194	}
	195
	196	return state;
	197	}
	198
	199	unsigned int EnterFlashState(void)
	200	{
	201	unsigned int state = GetProxmarkState();
	202
	203	if(state & DEVICE_INFO_FLAG_CURRENT_MODE_BOOTROM) {
	204	/* Already in flash state, we're done. */
	205	return state;
	206	}
	207
	208	if(state & DEVICE_INFO_FLAG_CURRENT_MODE_OS) {
	209	fprintf(stderr,"Entering flash-mode...\n");
	210	UsbCommand c;
	211	bzero(&c, sizeof(c));
	212
	213	if( (state & DEVICE_INFO_FLAG_BOOTROM_PRESENT) && (state & DEVICE_INFO_FLAG_OSIMAGE_PRESENT) ) {
	214	/* New style handover: Send CMD_START_FLASH, which will reset the board and
	215	* enter the bootrom on the next boot.
	216	*/
	217	c.cmd = CMD_START_FLASH;
	218	SendCommand(&c);
	219	fprintf(stderr,"(You don't have to do anything. Press and release the button only if you want to abort)\n");
	220	fprintf(stderr,"Waiting for Proxmark to reappear on USB... ");
	221	} else {
	222	/* Old style handover: Ask the user to press the button, then reset the board */
	223	c.cmd = CMD_HARDWARE_RESET;
	224	SendCommand(&c);
225	fprintf(stderr,"(Press and hold down button NOW if your bootloader requires it)\n");
226	fprintf(stderr,"Waiting for Proxmark to reappear on USB... ");
227	}
228
229	#ifdef WIN32
230	Sleep(1000);
231	while(!UsbConnect()) { Sleep(1000); }
232	#else
233	CloseProxmark();
234	sleep(1);
235
236	while(!(devh=OpenProxmark(0))) { sleep(1); }
237	#endif
238	fprintf(stderr,"Found.\n");
239
240	return GetProxmarkState();
241	}
242
243	return 0;
244	}
245
246	/* On first call, have offset = -1, length = 0; */
247	int find_next_area(const char str, int offset, int *length)
248	{
249	if(*str == '\0') return 0;
250	if((offset >= 0) && str[offset + *length] == '\0') return 0;
251	offset += 1 + length;
252
253	char next_comma = strchr(str + offset, ',');
254	if(next_comma == NULL) {
255	length = strlen(str) - offset;
256	} else {
257	length = next_comma-(str+offset);
258	}
259	return 1;
260	}
261
262	void do_flash(char **argv) {
263	unsigned int state = EnterFlashState();
264
265	if (!(state & DEVICE_INFO_FLAG_CURRENT_MODE_BOOTROM)) {
266	fprintf(stderr, "Proxmark would not enter flash state, abort\n");
267	exit(-1);
268	}
269
270	int offset=-1, length=0;
271	int current_area = 0;
272	while(find_next_area(argv[1], &offset, &length)) {
273	int i;
274	struct partition *p = NULL;
275	for (i=0; i<sizeof(partitions)/sizeof(partitions[0]); i++) {
276	if (strncmp(partitions[i].name, argv[1] + offset, length) == 0) {
277	/* Check if the name matches the bootrom partition, and if so, require "bootrom" to
278	* be written in full. The other names may be abbreviated.
279	*/
280	if(!partitions[i].precious \|\| (strlen(partitions[i].name) == length))
281	p = &partitions[i];
282	break;
283	}
284	}
285
286	if(p == NULL) {
287	fprintf(stderr, "Warning: area name '");
288	fwrite(argv[1]+offset, length, 1, stderr);
289	fprintf(stderr, "' unknown, ignored\n");
290	} else {
291	fprintf(stderr, "Flashing %s from %s\n", p->name, argv[2+current_area]);
292	PrepareFlash(p, argv[2+current_area], state);
293	}
294	current_area++;
295	}
296	}