X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/cef938d8830cd97783cb50fe68569e59ee9a1373..5e174a511b37e17cd3fcaedad608ce605ba34ce9:/client/flash.c diff --git a/client/flash.c b/client/flash.c index 61d5cf75..b4e4c891 100644 --- a/client/flash.c +++ b/client/flash.c @@ -1,298 +1,282 @@ #ifdef WIN32 #include #include -#include #define bzero(b,len) (memset((b), '\0', (len)), (void) 0) BOOL UsbConnect(void); -#else -#include #endif +#include + #include -#include -#include -#include -#include -#include #include -#include -#include - -#include "prox.h" -#ifndef WIN32 -#include "proxmark3.h" -#endif +#include #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); - } +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}, + {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)); - 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; + 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)); + block_start &= ~0xFF; + } else { + memcpy(temp_buf, buf, len); + } + + UsbCommand c = {CMD_SETUP_WRITE}; + + for (int 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(); } 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 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; - } - } + 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) { + 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 (int 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"); + 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; + 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 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... "); - } + 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); } + Sleep(1000); + while (!UsbConnect()) { Sleep(1000); } #else - CloseProxmark(); - sleep(1); + CloseProxmark(); + sleep(1); - while(!(devh=OpenProxmark(0))) { sleep(1); } + while (!OpenProxmark(0)) { sleep(1); } #endif - fprintf(stderr,"Found.\n"); + fprintf(stderr,"Found.\n"); + + return GetProxmarkState(); + } - return GetProxmarkState(); - } - - return 0; + 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; + 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; iname, argv[2+current_area]); - PrepareFlash(p, argv[2+current_area], state); - } - current_area++; - } +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)) { + struct partition *p = NULL; + for (int i = 0; iname, argv[2+current_area]); + PrepareFlash(p, argv[2+current_area], state); + } + current_area++; + } }