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panda
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if otp is programmed it works

master
George Hotz 2017-04-28 17:25:37 -07:00
parent 30395e2c7a
commit b3fa6f529f
3 changed files with 38 additions and 15 deletions
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47
boardesp/proxy.c
View File

@ -7,6 +7,7 @@
#include "tcp_ota.h"
#include "driver/spi_interface.h"
#include "crypto/sha.h"
#define min(a,b) \
({ __typeof__ (a) _a = (a); \
@ -32,16 +33,7 @@ esp_tcp inter_proto;
uint32_t sendData[0x14] = {0};
uint32_t recvData[0x40] = {0};
static int ICACHE_FLASH_ATTR spi_comm(char *dat, int len, uint32_t *recvData, int recvDataLen) {
// blink the led during SPI comm
if (GPIO_REG_READ(GPIO_OUT_ADDRESS) & (1 << pin)) {
// set gpio low
gpio_output_set(0, (1 << pin), 0, 0);
} else {
// set gpio high
gpio_output_set((1 << pin), 0, 0, 0);
}
static int ICACHE_FLASH_ATTR __spi_comm(char *dat, int len, uint32_t *recvData, int recvDataLen) {
SpiData spiData;
spiData.cmd = 2;
@ -82,6 +74,18 @@ static int ICACHE_FLASH_ATTR spi_comm(char *dat, int len, uint32_t *recvData, in
return length;
}
static int ICACHE_FLASH_ATTR spi_comm(char *dat, int len, uint32_t *recvData, int recvDataLen) {
// blink the led during SPI comm
if (GPIO_REG_READ(GPIO_OUT_ADDRESS) & (1 << pin)) {
// set gpio low
gpio_output_set(0, (1 << pin), 0, 0);
} else {
// set gpio high
gpio_output_set((1 << pin), 0, 0, 0);
}
__spi_comm(dat, len, recvData, recvDataLen);
}
static void ICACHE_FLASH_ATTR tcp_rx_cb(void *arg, char *data, uint16_t len) {
// nothing too big
@ -146,13 +150,29 @@ void ICACHE_FLASH_ATTR inter_connect_cb(void *arg) {
}
void ICACHE_FLASH_ATTR wifi_init() {
// default ssid and password
char ssid[32];
memset(ssid, 0, 32);
os_sprintf(ssid, "panda-%08x-BROKEN", system_get_chip_id());
char password[] = "testing123";
// fetch secure ssid and password
uint8_t digest[SHA_DIGEST_SIZE];
char resp[0x20];
__spi_comm("\x00\x00\x00\x00\x40\xD0\x00\x00\x00\x00\x20\x00", 0xC, recvData, 0x40);
memcpy(resp, recvData+1, 0x20);
SHA_hash(resp, 0x1C, digest);
if (memcmp(digest, resp+0x1C, 4) == 0) {
// OTP is valid
memcpy(ssid+6, resp, 0x10);
memcpy(password, resp+0x10, 10);
}
// start wifi AP
wifi_set_opmode(SOFTAP_MODE);
struct softap_config config;
wifi_softap_get_config(&config);
char ssid[32];
os_sprintf(ssid, "panda-%08x", system_get_chip_id());
char password[] = "testing123"; //password must be 8 characters or longer
strcpy(config.ssid, ssid);
strcpy(config.password, password);
config.ssid_len = strlen(ssid);
@ -232,6 +252,7 @@ void ICACHE_FLASH_ATTR user_init()
uart0_init(0);
os_printf("hello\n");
// needs SPI
wifi_init();
// support ota upgrades

1
lib/panda.py
View File

@ -90,7 +90,6 @@ class Panda(object):
def get_serial(self):
dat = self.handle.controlRead(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xd0, 0, 0, 0x20)
hexdump(dat)
assert dat[0x1c:] == hashlib.sha1(dat[0:0x1c]).digest()[0:4]
return [dat[0:0x10], dat[0x10:0x10+10]]

5
tests/standalone_test.py
View File

@ -10,6 +10,7 @@ if __name__ == "__main__":
else:
p = Panda()
print p.health()
print p.get_serial()
a = 0
while 1:
@ -20,6 +21,8 @@ if __name__ == "__main__":
p.can_send(0xaa, msg, 4)
time.sleep(0.01)
print p.can_recv()
dat = p.can_recv()
if len(dat) > 0:
print dat
a += 1