diff --git a/Makefile b/Makefile index f8d74dd..219ac9f 100644 --- a/Makefile +++ b/Makefile @@ -12,7 +12,7 @@ else CFLAGS := $(CFLAGS) -lX11 endif -TARGETS := pm3-lvgl +TARGETS := pm3-lvgl cvend EXES := $(patsubst %,bin/%,$(TARGETS)) SRCS := $(shell find src inc -type f -iname '*.c') OBJS := $(patsubst src/%.c,obj/%.o,$(patsubst inc/%.c,obj/lib/%.o,$(SRCS))) diff --git a/src/cvend.c b/src/cvend.c new file mode 100644 index 0000000..c8b9365 --- /dev/null +++ b/src/cvend.c @@ -0,0 +1,252 @@ +#include +#include +#include +#include + +int last_seq = 0; + +enum message_type { + MTYPE_VERSION = 0x02, + MTYPE_VERSION_REPLY = 0x03, + MTYPE_STATUS = 0x04, + MTYPE_STATUS_REPLY = 0x05, + MTYPE_HEARTBEAT = 0x07, + MTYPE_STARTUP = 0x0f, + MTYPE_RESET = 0x10, + MTYPE_RESET_REPLY = 0x11, + MTYPE_LEDS = 0x20, + MTYPE_BUZZER = 0x22, + MTYPE_CARD_RELEASE = 0x32, + MTYPE_ABORT_CARD_HANDLING = 0x46, + MTYPE_PUT_FILE = 0x96, + MTYPE_PUT_FILE_REPLY = 0x97, + MTYPE_GET_FILE = 0x98, + MTYPE_GET_FILE_REPLY = 0x99, + MTYPE_DELETE_FILE = 0x9a, + MTYPE_DELETE_FILE_REPLY = 0x9b, + MTYPE_FILE_INFO = 0x9c, + MTYPE_FILE_INFO_REPLY = 0x9d, + MTYPE_FILE_LIST = 0xa4, + MTYPE_FILE_LIST_REPLY = 0xa5, + MTYPE_SET_TIME = 0xaa, + MTYPE_SET_TIME_REPLY = 0xab, + MTYPE_ITSO_DATA = 0xac, + MTYPE_ITSO_DATA_REPLY = 0xad, + MTYPE_ITSO_CTRL = 0xae, + MTYPE_ITSO_CTRL_REPLY = 0xaf, + MTYPE_ITSO_READ = 0xb1, + MTYPE_APDU_PROX = 0xb4, + MTYPE_APDU_PROX_REPLY = 0xb5, + MTYPE_SAM_CTRL = 0xb6, + MTYPE_SAM_CTRL_REPLY = 0xb7, + MTYPE_DESFIRE_READ = 0xb9, + MTYPE_UNHANDLED_CARD = 0xbe, + MTYPE_EMV = 0xd0, + MTYPE_EMV_STATUS = 0xd1, + MTYPE_PROX_CARD_FUNCTION = 0xe4, + MTYPE_PROX_CARD_FUNCTION_REPLY = 0xe5, + MTYPE_SECURITY_SERVICES = 0xe8, + MTYPE_SECURITY_SERVICES_REPLY = 0xe9, + MTYPE_LOG = 0xed +}; + +const char *stringify_msg_type(uint8_t msg_type) +{ + switch (msg_type) { + case MTYPE_VERSION: + return "MTYPE_VERSION"; + case MTYPE_VERSION_REPLY: + return "MTYPE_VERSION_REPLY"; + case MTYPE_STATUS: + return "MTYPE_STATUS"; + case MTYPE_STATUS_REPLY: + return "MTYPE_STATUS_REPLY"; + case MTYPE_HEARTBEAT: + return "MTYPE_HEARTBEAT"; + case MTYPE_STARTUP: + return "MTYPE_STARTUP"; + case MTYPE_RESET: + return "MTYPE_RESET"; + case MTYPE_RESET_REPLY: + return "MTYPE_RESET_REPLY"; + case MTYPE_LEDS: + return "MTYPE_LEDS"; + case MTYPE_BUZZER: + return "MTYPE_BUZZER"; + case MTYPE_CARD_RELEASE: + return "MTYPE_CARD_RELEASE"; + case MTYPE_ABORT_CARD_HANDLING: + return "MTYPE_ABORT_CARD_HANDLING"; + case MTYPE_PUT_FILE: + return "MTYPE_PUT_FILE"; + case MTYPE_PUT_FILE_REPLY: + return "MTYPE_PUT_FILE_REPLY"; + case MTYPE_GET_FILE: + return "MTYPE_GET_FILE"; + case MTYPE_GET_FILE_REPLY: + return "MTYPE_GET_FILE_REPLY"; + case MTYPE_DELETE_FILE: + return "MTYPE_DELETE_FILE"; + case MTYPE_DELETE_FILE_REPLY: + return "MTYPE_DELETE_FILE_REPLY"; + case MTYPE_FILE_INFO: + return "MTYPE_FILE_INFO"; + case MTYPE_FILE_INFO_REPLY: + return "MTYPE_FILE_INFO_REPLY"; + case MTYPE_FILE_LIST: + return "MTYPE_FILE_LIST"; + case MTYPE_FILE_LIST_REPLY: + return "MTYPE_FILE_LIST_REPLY"; + case MTYPE_SET_TIME: + return "MTYPE_SET_TIME"; + case MTYPE_SET_TIME_REPLY: + return "MTYPE_SET_TIME_REPLY"; + case MTYPE_ITSO_DATA: + return "MTYPE_ITSO_DATA"; + case MTYPE_ITSO_DATA_REPLY: + return "MTYPE_ITSO_DATA_REPLY"; + case MTYPE_ITSO_CTRL: + return "MTYPE_ITSO_CTRL"; + case MTYPE_ITSO_CTRL_REPLY: + return "MTYPE_ITSO_CTRL_REPLY"; + case MTYPE_ITSO_READ: + return "MTYPE_ITSO_READ"; + case MTYPE_APDU_PROX: + return "MTYPE_APDU_PROX"; + case MTYPE_APDU_PROX_REPLY: + return "MTYPE_APDU_PROX_REPLY"; + case MTYPE_SAM_CTRL: + return "MTYPE_SAM_CTRL"; + case MTYPE_SAM_CTRL_REPLY: + return "MTYPE_SAM_CTRL_REPLY"; + case MTYPE_DESFIRE_READ: + return "MTYPE_DESFIRE_READ"; + case MTYPE_UNHANDLED_CARD: + return "MTYPE_UNHANDLED_CARD"; + case MTYPE_EMV: + return "MTYPE_EMV"; + case MTYPE_EMV_STATUS: + return "MTYPE_EMV_STATUS"; + case MTYPE_PROX_CARD_FUNCTION: + return "MTYPE_PROX_CARD_FUNCTION"; + case MTYPE_PROX_CARD_FUNCTION_REPLY: + return "MTYPE_PROX_CARD_FUNCTION_REPLY"; + case MTYPE_SECURITY_SERVICES: + return "MTYPE_SECURITY_SERVICES"; + case MTYPE_SECURITY_SERVICES_REPLY: + return "MTYPE_SECURITY_SERVICES_REPLY"; + case MTYPE_LOG: + return "MTYPE_LOG"; + default: + return "UNKNOWN"; + } +} + +typedef struct cvend_packet { + uint8_t magic; + uint8_t seq; + uint8_t flags; + uint8_t msg_type; + uint16_t msg_len; + uint8_t hdr_crc; + uint8_t *msg_data; + uint32_t msg_crc; +} cvend_packet; + +cvend_packet *cvend_read(FILE *file) +{ + uint8_t buf; + fread(&buf, 1, 1, file); + if (buf != 0xbc) { + printf("failed: %x\n", buf); + return NULL; + } + + cvend_packet *packet = malloc(sizeof(cvend_packet)); + fread(&packet->seq, 1, 1, file); + fread(&packet->flags, 1, 1, file); + fread(&packet->msg_type, 1, 1, file); + fread(&packet->msg_len + 1, 1, 1, file); + fread(&packet->msg_len, 1, 1, file); + fread(&packet->hdr_crc, 1, 1, file); + + packet->msg_data = malloc(packet->msg_len + 1); + fread(packet->msg_data, 1, packet->msg_len, file); + packet->msg_data[packet->msg_len] = '\0'; + if (packet->msg_type & 0x80) + fread(&packet->msg_crc, 1, 4, file); + else + packet->msg_crc = 0; + + return packet; +} + +void cvend_send(uint8_t msg_type, uint8_t *msg_data, uint16_t msg_size) +{ +} + +void cvend_free(cvend_packet *packet) +{ + free(packet->msg_data); + free(packet); +} + +unsigned char dallas_crc8(const unsigned char * data, const unsigned int size) +{ + unsigned char crc = 0; + for ( unsigned int i = 0; i < size; ++i ) + { + unsigned char inbyte = data[i]; + for ( unsigned char j = 0; j < 8; ++j ) + { + unsigned char mix = (crc ^ inbyte) & 0x01; + crc >>= 1; + if ( mix ) crc ^= 0x8C; + inbyte >>= 1; + } + } + return crc; +} + +void calc_hdr_crc(cvend_packet *packet) +{ + packet->magic = 0xbc; + packet->msg_len = (packet->msg_len << 8) + (packet->msg_len >> 8); + packet->hdr_crc = dallas_crc8((uint8_t *) packet, 6); + packet->msg_len = (packet->msg_len << 8) + (packet->msg_len >> 8); +} + +int main(int argc, char *argv[]) +{ + cvend_packet crc_packet; + crc_packet.seq = 131; + crc_packet.flags = 0; + crc_packet.msg_type = MTYPE_UNHANDLED_CARD; + crc_packet.msg_len = 41; + + printf("new_crc = %d\n", crc_packet.hdr_crc); + + FILE *file = fopen(argc > 1 ? argv[1] : "/dev/ttymxc3", "r"); + while (1) { + cvend_packet *packet; + do { + packet = cvend_read(file); + } while (!packet); + + printf("\n"); + printf("seq = %u\n", packet->seq); + printf("flags = %x\n", packet->flags); + printf("msg_type = %s\n", stringify_msg_type(packet->msg_type)); + printf("msg_len = %u\n", packet->msg_len); + printf("hdr_crc = %u\n", packet->hdr_crc); + printf("msg_data = "); + for (uint16_t i = 0; i < packet->msg_len; i++) + printf("%02x ", packet->msg_data[i]); + printf("\n"); + printf("msg_crc = %u\n\n", packet->msg_crc); + + cvend_free(packet); + } + fclose(file); + return 0; +}