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added send/receive card loadables

This commit is contained in:
schneider 2011-08-03 10:27:56 +02:00
parent 01f7fde0d4
commit e5a4cdf427
2 changed files with 359 additions and 0 deletions
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183
firmware/loadable/recvcard.c Normal file
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#include <sysinit.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdint.h>
#include "basic/basic.h"
#include "lcd/render.h"
#include "lcd/allfonts.h"
#include "basic/ecc.h"
#include "funk/nrf24l01p.h"
#include "filesystem/ff.h"
#include "filesystem/diskio.h"
#include "funk/filetransfer.h"
#include "lcd/print.h"
uint8_t mac[5] = {1,2,3,2,1};
void ram(void)
{
if( sendKeys() )
return;
char priv[42];
UINT readbytes;
FIL file;
if( f_open(&file, "priv.key", FA_OPEN_EXISTING|FA_READ) ){
return;
}
if( f_read(&file, priv, 41, &readbytes) || readbytes != 41 ){
return;
}
f_close(&file);
priv[41] = 0;
uint8_t done = 0;
uint8_t key;
uint8_t k1[16], k2[16], rx[4*NUMWORDS], ry[4*NUMWORDS];
while( !done ){
lcdClear();
lcdPrintln("Receiving file");
lcdPrintln("Down=Abort");
lcdRefresh();
key = getInput();
delayms(20);
if( key == BTN_DOWN ){
return -1;
}
if( receiveR(rx,ry) )
continue;
lcdPrintln("Creating key");
lcdRefresh();
ECIES_decryptkeygen(rx, ry, k1, k2, priv);
if( filetransfer_receive(mac,(uint32_t*)k1) < 0 )
continue;
lcdPrintln("Right=OK");
lcdPrintln("Left=Retry");
lcdPrintln("Down=Abort");
lcdRefresh();
while(1){
key = getInput();
delayms(20);
if( key == BTN_LEFT ){
break;
}else if( key == BTN_RIGHT ){
done = 1;
break;
}else if( key == BTN_DOWN ){
return -1;
}
}
}
}
void sendPublicKey(void)
{
uint8_t exp[2 + 4*NUMWORDS + 2];
char buf[42];
UINT readbytes;
FIL file;
if( f_open(&file, "pubx.key", FA_OPEN_EXISTING|FA_READ) ){
return;
}
if( f_read(&file, buf, 41, &readbytes) || readbytes != 41 ){
return;
}
f_close(&file);
buf[41] = 0;
exp[0] = 'P';
bitstr_parse_export((char*)exp+2, buf);
exp[1] = 'X';
nrf_snd_pkt_crc(32, exp);
delayms(10);
if( f_open(&file, "puby.key", FA_OPEN_EXISTING|FA_READ) ){
return;
}
if( f_read(&file, buf, 41, &readbytes) || readbytes != 41 ){
return;
}
f_close(&file);
buf[41] = 0;
exp[1] = 'Y';
bitstr_parse_export((char*)exp+2, buf);
nrf_snd_pkt_crc(32, exp);
delayms(10);
}
int receiveKey(uint8_t type, uint8_t *x, uint8_t *y)
{
uint8_t buf[32];
uint8_t n;
n = nrf_rcv_pkt_time(1000, 32, buf);
if( n == 32 && buf[0] == type && buf[1] == 'X' ){
for(int i=0; i<NUMWORDS*4; i++)
x[i] = buf[i+2];
n = nrf_rcv_pkt_time(100, 32, buf);
if( n == 32 && buf[0] ==type && buf[1] == 'Y' ){
for(int i=0; i<NUMWORDS*4; i++)
y[i] = buf[i+2];
return 0;
}
}
return -1;
}
int receiveR(uint8_t *rx, uint8_t *ry)
{
return receiveKey('R',rx,ry);
}
void sendMac(void)
{
uint8_t buf[32];
buf[0] = 'M';
buf[1] = 'C';
buf[2] = mac[0];
buf[3] = mac[1];
buf[4] = mac[2];
buf[5] = mac[3];
buf[6] = mac[4];
nrf_snd_pkt_crc(32, buf);
delayms(10);
}
int sendKeys(void)
{
uint8_t done = 0;
char key;
while( !done ){
lcdClear();
lcdPrintln("Sending PUBKEY");lcdRefresh();
sendPublicKey();
sendMac();
lcdPrintln("Done");
lcdPrintln("Right=OK");
lcdPrintln("Left=Retry");
lcdPrintln("Down=Abort");
lcdRefresh();
while(1){
key = getInput();
delayms(20);
if( key == BTN_LEFT ){
break;
}else if( key == BTN_RIGHT ){
done = 1;
break;
}else if( key == BTN_DOWN ){
return -1;
}
}
}
return 0;
}

176
firmware/loadable/sendcard.c Normal file
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#include <sysinit.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdint.h>
#include "basic/basic.h"
#include "lcd/render.h"
#include "lcd/allfonts.h"
#include "basic/ecc.h"
#include "funk/nrf24l01p.h"
#include "filesystem/ff.h"
#include "filesystem/diskio.h"
#include "funk/filetransfer.h"
#include "lcd/print.h"
uint8_t mac[5] = {1,2,3,2,1};
void ram(void)
{
char file[13];
selectFile(file,"TXT");
sendFile(file);
}
void sendR(uint8_t *rx, uint8_t *ry)
{
uint8_t exp[2 + 4*NUMWORDS + 2];
exp[0] = 'R';
for(int i=0; i<4*NUMWORDS; i++)
exp[2+i] = rx[i];
exp[1] = 'X';
nrf_snd_pkt_crc(32, exp);
delayms(10);
exp[1] = 'Y';
for(int i=0; i<4*NUMWORDS; i++)
exp[2+i] = ry[i];
nrf_snd_pkt_crc(32, exp);
delayms(10);
}
int receiveKey(uint8_t type, uint8_t *x, uint8_t *y)
{
uint8_t buf[32];
uint8_t n;
n = nrf_rcv_pkt_time(1000, 32, buf);
if( n == 32 && buf[0] == type && buf[1] == 'X' ){
for(int i=0; i<NUMWORDS*4; i++)
x[i] = buf[i+2];
n = nrf_rcv_pkt_time(100, 32, buf);
if( n == 32 && buf[0] ==type && buf[1] == 'Y' ){
for(int i=0; i<NUMWORDS*4; i++)
y[i] = buf[i+2];
return 0;
}
}
return -1;
}
int receivePublicKey(uint8_t *px, uint8_t *py)
{
return receiveKey('P',px,py);
}
void sendMac(void)
{
uint8_t buf[32];
buf[0] = 'M';
buf[1] = 'C';
buf[2] = mac[0];
buf[3] = mac[1];
buf[4] = mac[2];
buf[5] = mac[3];
buf[6] = mac[4];
nrf_snd_pkt_crc(32, buf);
delayms(10);
}
int receiveMac(uint8_t *mac)
{
uint8_t buf[32];
uint8_t n;
n = nrf_rcv_pkt_time(100, 32, buf);
if( n == 32 && buf[0] == 'M' && buf[1] == 'C' ){
for(int i=0; i<5; i++)
mac[i] = buf[i+2];
return 0;
}
return -1;
}
int receiveKeys(uint8_t *px, uint8_t *py, uint8_t *mac)
{
uint8_t done = 0;
char key;
while( !done ){
lcdClear();
lcdPrintln("Recv. PUBKEY");
lcdPrintln("Down=Abort");
lcdRefresh();
key = getInput();
delayms(20);
if( key == BTN_DOWN ){
return -1;
}
if( receivePublicKey(px,py) )
continue;
if( receiveMac(mac) )
continue;
lcdClear();
lcdPrintln("Got PUBKEY"); lcdRefresh();
lcdPrintln("Hash:");
lcdPrintln("Right=OK");
lcdPrintln("Left=Retry");
lcdPrintln("Down=Abort");
lcdRefresh();
while(1){
key = getInput();
delayms(20);
if( key == BTN_LEFT ){
break;
}else if( key == BTN_RIGHT ){
done = 1;
break;
}else if( key == BTN_DOWN ){
return -1;
}
}
}
return 0;
}
void sendFile(char *filename)
{
uint8_t px[4*NUMWORDS];
uint8_t py[4*NUMWORDS];
uint8_t mac[5];
if( receiveKeys(px, py, mac) )
return;
uint8_t done = 0;
uint8_t key;
uint8_t k1[16], k2[16], rx[4*NUMWORDS], ry[4*NUMWORDS];
lcdClear();
lcdPrintln("Creating key"); lcdRefresh();
ECIES_encyptkeygen(px, py, k1, k2, rx, ry);
while( !done ){
lcdPrintln("Sending file");lcdRefresh();
sendR(rx,ry);
delayms(3000);
filetransfer_send((uint8_t*)filename, 0, mac, (uint32_t*)k1);
lcdPrintln("Done");
lcdPrintln("Right=OK");
lcdPrintln("Left=Retry");
lcdRefresh();
while(1){
key = getInput();
delayms(20);
if( key == BTN_LEFT ){
break;
}else if( key == BTN_RIGHT ){
done = 1;
break;
}
}
lcdClear();
}
}