X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/a146075d74306aacf600d219dfa2df086690db53..fa4a296451175b0c287f74f0e595a9d408732d0b:/client/flasher.c diff --git a/client/flasher.c b/client/flasher.c index 82810b0a..85aae049 100644 --- a/client/flasher.c +++ b/client/flasher.c @@ -1,356 +1,93 @@ -#include +//----------------------------------------------------------------------------- +// 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 -#include #include -#include -#include -#include #include -#include -#include - -#include "prox.h" -#include "proxmark3.h" - -static uint32_t ExpectedAddr; -static uint8_t QueuedToSend[256]; -static bool AllWritten; -#define PHYSICAL_FLASH_START 0x100000 - -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"}, -}; +#include "sleep.h" +#include "proxusb.h" +#include "flash.h" -/* If translate is set, subtract PHYSICAL_FLASH_START to translate for old - * bootroms. - */ -static void FlushPrevious(int translate) +static void usage(char *argv0) { - 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, true); - } - - 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, true); - - AllWritten = true; + fprintf(stderr, "Usage: %s [-b] image.elf [image.elf...]\n\n", argv0); + fprintf(stderr, "\t-b\tEnable flashing of bootloader area (DANGEROUS)\n\n"); + fprintf(stderr, "Example: %s path/to/osimage.elf path/to/fpgaimage.elf\n", argv0); } -/* 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++; - - if((where & 255) == 255) { - // we have completed a full page - FlushPrevious(translate); - } -} +#define MAX_FILES 4 -static int HexVal(int c) +int main(int argc, char **argv) { - 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 can_write_bl = 0; + int num_files = 0; + int res; + flash_file_t files[MAX_FILES]; -static uint8_t HexByte(char *s) -{ - return (HexVal(s[0]) << 4) | HexVal(s[1]); -} + memset(files, 0, sizeof(files)); -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); + if (argc < 2) { + usage(argv[0]); + return -1; } - 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; - - 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; - - 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; + for (int i = 1; i < argc; i++) { + if (argv[i][0] == '-') { + if (!strcmp(argv[i], "-b")) { + can_write_bl = 1; + } else { + 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; } 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, 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; -} -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.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; -} + usb_init(); -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(); + fprintf(stderr, "Waiting for Proxmark to appear on USB..."); + while (!OpenProxmark(0)) { sleep(1); - - while(!(devh=OpenProxmark(0))) { sleep(1); } - fprintf(stderr,"Found.\n"); - - return GetProxmarkState(); + fprintf(stderr, "."); } - - return 0; -} + fprintf(stderr, " Found.\n"); -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]); -} + res = flash_start_flashing(can_write_bl); + if (res < 0) + return -1; -/* 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; -} + fprintf(stderr, "\nFlashing...\n"); -int main(int argc, char **argv) { - if(argc < 2) { - usage(argv); - exit(-1); + 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"); } - - /* 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; iname, 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); + fprintf(stderr, "Resetting hardware...\n"); + + 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; }