X-Git-Url: http://git.rot13.org/?p=goodfet;a=blobdiff_plain;f=client%2Fgoodfet.nrf;h=8856f5e2b911edc4730935c2bd1b8b31432a68b8;hp=1bd234d6152f89f3d1cac64c781ae1a8dd0636d2;hb=1757456dc0a877f5de598ef112704105e26da916;hpb=392ee268f518dbd4fa8d5e3dd65752823188f65d diff --git a/client/goodfet.nrf b/client/goodfet.nrf index 1bd234d..8856f5e 100755 --- a/client/goodfet.nrf +++ b/client/goodfet.nrf @@ -28,7 +28,7 @@ def printpacket(packet): i=i+1; if i>client.packetlen: break; s="%s %02x" % (s,ord(foo)); - print "%s" %s; + print "%s" % s; def printconfig(): print "Encoding %s" % client.RF_getenc(); @@ -47,13 +47,18 @@ if(len(sys.argv)==1): print "%s regs" % sys.argv[0]; print "%s regbits" % sys.argv[0]; print "%s pyregs" % sys.argv[0]; - + print ""; print "%s sniff\n\tSniffs packets by current config." % sys.argv[0]; print "%s sniffob\n\tSniffs OpenBeacon traffic." % sys.argv[0]; print "%s snifftp\n\tSniffs Turning Point Clicker traffic." % sys.argv[0]; - print "%s snifftp\n\tSniffs SparkFun Dongle traffic." % sys.argv[0]; + print "%s sniffsf\n\tSniffs SparkFun Dongle traffic." % sys.argv[0]; + print ""; + print "%s sniffprom [0xaa|0x55]\n\tSniffs promiscuously for a preamble of 0xAA or 0x55" % sys.argv[0]; + print "%s autotune\n\tSearches for a valid destination address." % sys.argv[0]; + print ""; + print "%s sniffskybrake\n\tSniffs skybrake. [broken?]" % sys.argv[0]; + print "%s sniffmskb\n\tSniffs MS KB. [broken?]" % sys.argv[0]; - print "%s sniffprom\n\tSniffs promiscuously." % sys.argv[0]; print "%s hosttp\n\tHosts Turning Point Clicker traffic." % sys.argv[0]; @@ -193,25 +198,147 @@ if(sys.argv[1]=="sniffprom"): client.poke(0x01,0x00); #Disable Shockburst client.poke(0x02,0x01); #Set RX Pipe 0 - client.RF_setfreq(2481 * 10**6); - client.poke(0x06,0x09); #2MBps, -18dBm in RF_SETUP + #client.RF_setfreq(2481 * 10**6); + #client.poke(0x06,0x09); #2MBps, -18dBm in RF_SETUP client.poke(0x07,0x78); #Reset status register #OpenBeacon defines these in little endian as follows. - client.RF_setmaclen(5); # SETUP_AW for 3-byte addresses. - #0x01, 0x02, 0x03, 0x02, 0x01 - #client.RF_setsmac(0x0102030201); - #client.RF_setsmac(0x0000000201); - client.RF_setsmac(0x0102); - #'O', 'C', 'A', 'E', 'B' - #client.RF_settmac(0x424541434F); + client.RF_setmaclen(2); # SETUP_AW for shortest + + #It's better to have a known fragment, when one is available. + #client.RF_setsmac(0x00AA); + #client.RF_setsmac(0x0055); + + #Should end in 55 or AA depending upon the packet. + tail=0x55 + if(len(sys.argv)>2): + tail=int(sys.argv[2],16); + else: + print "Please specify a tail of 0xAA or 0x55."; + sys.exit(1); + client.RF_setsmac(tail); + + #Longest length. + client.RF_setpacketlen(32); + + #Power radio, prime for RX, no checksum + client.poke(0x00,0x70|0x03); #0x08 for checksum, 0x04 for two. + + print "Listening as %010x on %i MHz" % (client.RF_getsmac(), + client.RF_getfreq()/10**6); + #Now we're ready to get packets. + while 1: + packet=None; + while packet==None: + #time.sleep(0.1); + packet=client.RF_rxpacket(); + printpacket(packet); + sys.stdout.flush(); + +class AddressGuesser(): + """This guesses addresses by searching through packets.""" + #packets=[]; + addresses={}; + client=None; + def init(self,goodfet): + self.client=goodfet; + def packetaddr(self,packet): + s=""; + for i in range(0,5): + s="%s%02x" % (s,ord(packet[i])); + return s; + def handle(self,packet): + #printpacket(packet); + #self.packets.append(packet); + addr=self.packetaddr(packet); + + #Increment the address count. + count=0; + try: + count=self.addresses[addr]; + except: + pass; + self.addresses[addr]=count+1; + rate=count*1.0/len(self.addresses); + if self.addresses[addr]>1 or rate>0.01: + print "'%s' looks valid\t%i\t%0.5f" % ( + addr,count,rate); + return; + +if(sys.argv[1]=="autotune"): + #Reversal of transmitter code from nRF_CMD.c of OpenBeacon + #TODO remove all poke() calls. + guesser=AddressGuesser(); + + client.poke(0x00,0x00); #Stop nRF + client.poke(0x01,0x00); #Disable Shockburst + client.poke(0x02,0x01); #Set RX Pipe 0 + + #client.RF_setfreq(2481 * 10**6); + #client.poke(0x06,0x09); #2MBps, -18dBm in RF_SETUP + client.poke(0x07,0x78); #Reset status register + + #OpenBeacon defines these in little endian as follows. + client.RF_setmaclen(2); # SETUP_AW for shortest + + #It's better to have a known fragment, when one is available. + #client.RF_setsmac(0x00AA); + #client.RF_setsmac(0x0055); + + #Should end in 55 or AA depending upon the packet. + tail=0x55 + if(len(sys.argv)>2): + tail=int(sys.argv[2],16); + else: + print "Please specify a tail of 0xAA or 0x55."; + sys.exit(1); + client.RF_setsmac(tail); + + #Longest length. + client.RF_setpacketlen(32); + + #Power radio, prime for RX, no checksum + client.poke(0x00,0x70|0x03); #0x08 for checksum, 0x04 for two. + + print "Listening as %010x on %i MHz" % (client.RF_getsmac(), + client.RF_getfreq()/10**6); + #Now we're ready to get packets. + while 1: + packet=None; + while packet==None: + packet=client.RF_rxpacket(); + guesser.handle(packet); + sys.stdout.flush(); + +if(sys.argv[1]=="sniffmskb"): + #MSWK 3000 v2.0 + #TODO remove all poke() calls. + + client.poke(0x00,0x00); #Stop nRF + client.poke(0x01,0x00); #Disable Shockburst + client.poke(0x02,0x01); #Set RX Pipe 0 + + client.poke(0x06,0x09); #2MBps, -18dBm in RF_SETUP + client.poke(0x07,0x78); #Reset status register + + #This is the address of a specific keyboard. + #Other keyboards will be different. + + + client.RF_setmaclen(2); + + #Known pairs. The channel and the low address bytes must match. + #client.RF_setfreq((2400+0x13) * 10**6); + #client.RF_setsmac(0x0c00a3598cd); + + client.RF_setfreq((2400+0x15) * 10**6); + client.RF_setsmac( 0x0c10446facd); #Mac packet length, illegally 0-length address field. client.RF_setpacketlen(32); - client.poke(0x03,0); - #Power radio, prime for RX, one-byte checksum. - client.poke(0x00,0x70|0x03); #0x08 for one byte, 0x04 for two. + #Power radio, prime for RX, no checksum + client.poke(0x00,0x70|0x03); #0x08 for checksum, 0x04 for two. print "Listening as %010x on %i MHz" % (client.RF_getsmac(), client.RF_getfreq()/10**6); @@ -279,9 +406,7 @@ if(sys.argv[1]=="sniffsf"): #OpenBeacon defines these in little endian as follows. client.RF_setmaclen(5); # SETUP_AW for 5-byte addresses. - #0x01, 0x02, 0x03, 0x02, 0x01 client.RF_setsmac(0xe7e7e7e7e7); - #'O', 'C', 'A', 'E', 'B' client.RF_settmac(0xe7e7e7e7e7); #Set packet length of 16.