RfidResearchGroup/proxmark3
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Add support for client getting bigbufsize

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This commit is contained in:
slurdge 2020-06-10 23:03:03 +02:00
parent df4bdc89ea
commit c11c7ab545
5 changed files with 20 additions and 9 deletions
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9
armsrc/appmain.c
View file

@ -392,6 +392,7 @@ static void SendCapabilities(void) {
capabilities.version = CAPABILITIES_VERSION;
capabilities.via_fpc = g_reply_via_fpc;
capabilities.via_usb = g_reply_via_usb;
capabilities.bigbuf_size = BigBuf_get_size();
capabilities.baudrate = 0; // no real baudrate for USB-CDC
#ifdef WITH_FPC_USART
if (g_reply_via_fpc)
@ -2051,11 +2052,15 @@ static void PacketReceived(PacketCommandNG *packet) {
}
}
extern uint32_t _stack_start;
void __attribute__((noreturn)) AppMain(void) {
SpinDelay(100);
BigBuf_initialize();
_stack_start = 0xdeadbeef;
if (common_area.magic != COMMON_AREA_MAGIC || common_area.version != 1) {
/* Initialize common area */
memset(&common_area, 0, sizeof(common_area));
@ -2121,6 +2126,10 @@ void __attribute__((noreturn)) AppMain(void) {
for (;;) {
WDT_HIT();
if (_stack_start != 0xdeadbeef) {
Dbprintf("Stack overflow detected! Please increase stack size.");
}
// Check if there is a packet available
PacketCommandNG rx;
memset(&rx.data, 0, sizeof(rx.data));

14
client/src/cmddata.c
View file

@ -567,7 +567,7 @@ int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType,
sscanf(Cmd, "%i %i %i %zu %c", &clk, &invert, &maxErr, &maxLen, &amp);
if (!maxLen) maxLen = BIGBUF_SIZE;
if (!maxLen) maxLen = pm3_capabilities.bigbuf_size;
if (invert != 0 && invert != 1) {
PrintAndLogEx(WARNING, "Invalid argument: %s", Cmd);
@ -1517,16 +1517,18 @@ static int CmdHexsamples(const char *Cmd) {
uint32_t offset = 0;
char string_buf[25];
char *string_ptr = string_buf;
uint8_t got[BIGBUF_SIZE];
uint8_t got[512*1024];
sscanf(Cmd, "%u %u", &requested, &offset);
/* if no args send something */
if (requested == 0)
requested = 8;
if (requested > pm3_capabilities.bigbuf_size)
requested = pm3_capabilities.bigbuf_size;
if (offset + requested > sizeof(got)) {
PrintAndLogEx(NORMAL, "Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
PrintAndLogEx(NORMAL, "Tried to read past end of buffer, <bytes> + <offset> > %d", pm3_capabilities.bigbuf_size);
return PM3_EINVARG;
}
@ -1595,10 +1597,10 @@ int getSamples(uint32_t n, bool verbose) {
// we don't have to worry about remaining trash
// in the last byte in case the bits-per-sample
// does not line up on byte boundaries
uint8_t got[BIGBUF_SIZE - 1] = { 0 };
uint8_t got[512*1024] = { 0 };
if (n == 0 || n > sizeof(got))
n = sizeof(got);
if (n == 0 || n > pm3_capabilities.bigbuf_size)
n = pm3_capabilities.bigbuf_size;
if (verbose) PrintAndLogEx(INFO, "Reading " _YELLOW_("%u") " bytes from device memory", n);

1
client/src/cmddata.h
View file

@ -79,7 +79,6 @@ int AskEdgeDetect(const int *in, int *out, int len, int threshold);
int demodIdteck(void);
#define MAX_DEMOD_BUF_LEN (1024*128)
#define BIGBUF_SIZE 40000
extern uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
extern size_t DemodBufferLen;

2
client/src/cmdlft55xx.c
View file

@ -2837,7 +2837,7 @@ static int CmdResetRead(const char *Cmd) {
if (resp.status == PM3_SUCCESS) {
uint16_t gotsize = BIGBUF_SIZE - 1;
uint16_t gotsize = pm3_capabilities.bigbuf_size - 1;
uint8_t *got = calloc(gotsize, sizeof(uint8_t));
if (got == NULL) {
PrintAndLogEx(WARNING, "failed to allocate memory");

3
include/pm3_cmd.h
View file

@ -175,6 +175,7 @@ typedef struct {
typedef struct {
uint8_t version;
uint32_t baudrate;
uint32_t bigbuf_size;
bool via_fpc : 1;
bool via_usb : 1;
// rdv4
@ -203,7 +204,7 @@ typedef struct {
bool hw_available_flash : 1;
bool hw_available_smartcard : 1;
} PACKED capabilities_t;
#define CAPABILITIES_VERSION 4
#define CAPABILITIES_VERSION 5
extern capabilities_t pm3_capabilities;
// For CMD_LF_T55XX_WRITEBL