"TX_ADDR",
"RX_PW_P0","RX_PW_P1","RX_PW_P2","RX_PW_P3","RX_PW_P4","RX_PW_P5",
"FIFO_STATUS","?",
- "?","?","DYNPD","?","?","?","?","?",
+ "?","?","?","DYNPD","FEATURE","AGC_CONFIG","?","?",
"?","?","?","?","?","?","?","?"];
def printpacket(packet):
i=i+1;
if i>client.packetlen: break;
s="%s %02x" % (s,ord(foo));
- print "%s" %s;
+ print "%s" % s;
+
+mskbstring="";
+oldseq=-1;
+def printmspacket(packet,offset=1):
+ """Decodes a Microsoft keyboard packet and maintains the typed strings."""
+ global mskbstring, oldseq;
+ keyword=client.RF_getsmac();
+ #print "keyword=%010x" % key;
+ key=[];
+ ct=[];
+ for foo in range(0,5):
+ key.append(keyword&0xFF);
+ keyword=(keyword>>8);
+ #print "Keybyte %02x" % key[foo];
+ i=0;
+ s="";
+
+ for foo in packet:
+ if i>=4:
+ ct.append(ord(foo)^key[(i+offset)%5]);
+ s="%s %02x" % (s,ord(foo)^key[(i+offset)%5]);
+ else:
+ ct.append(ord(foo));
+ s="%s %02x" % (s,ord(foo));
+ i=i+1;
+ #Uncomment this to print the raw packet, kinda noisy.
+ print "%s" % (s);
+
+ letter=None;
+ seq=ct[4];
+ if ct[0]==0x0a and ct[1]==0x78 and seq!=oldseq:
+ oldseq=seq;
+ #TODO replace this with a dictionary, and support modifiers.
+ if ct[9]==0:
+ #Key up event, not worth logging.
+ pass;
+ elif ct[9]>=4 and ct[9]<0x1E:
+ letter=ct[9]+ord('A')-4;
+ elif ct[9]>=0x1E and ct[9]<0x27:
+ letter=ct[9]+ord('1')-0x1E;
+ elif ct[9]==0x27:
+ letter=ord('0');
+ elif ct[9]==0x29:
+ #escape
+ letter=ord('e');
+ elif ct[9]==0x2d:
+ letter=ord('-');
+ elif ct[9]==0x2e:
+ letter=ord('=');
+ elif ct[9]==0x35:
+ letter=ord('`');
+ elif ct[9]==0x2C:
+ letter=ord('_');
+ elif ct[9]==0x34:
+ letter=ord('\'');
+ elif ct[9]==0x36:
+ letter=ord(',');
+ else:
+ print "Unknown character 0x%02x." % ct[9];
+ letter=ord('?');
+ if letter!=None:
+ mskbstring="%s%c" % (mskbstring,letter);
+ print "# %s" % mskbstring
def printconfig():
print "Encoding %s" % client.RF_getenc();
print "Freq %10i MHz" % (client.RF_getfreq()/10**6);
print "%s info" % sys.argv[0];
print "%s test" % sys.argv[0];
print "%s regs" % sys.argv[0];
+ print "%s regbits" % sys.argv[0];
print "%s pyregs" % sys.argv[0];
-
+ print "";
+ print "%s tune aa|55,mac,r5,r6\n\tTunes to a configuration." % sys.argv[0];
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 hosttp\n\tHosts Turning Point Clicker traffic." % sys.argv[0];
-
+ print "%s sniffsf\n\tSniffs SparkFun Dongle traffic." % sys.argv[0];
+ print "%s sniffmskb\n\tSniffs Microsoft Keyboard traffic." % sys.argv[0];
+ print "";
+ print "%s sniffmacs \n\tSniffs for MAC addresses on the present channel." % sys.argv[0];
+ 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 carrier [freq]\n\tHolds a carrier on [freq] Hz." % sys.argv[0];
sys.exit();
2*10**6]:
client.RF_setrate(foo);
if(client.RF_getrate()!=foo):
- print "ERROR Rate %i not supported. Got %i instead." % (foo,
- client.RF_getrate());
+ print "ERROR Rate %i not supported. Got %i instead." % (
+ foo,
+ client.RF_getrate());
print "\n\n";
client.poke(0x0A,0xDEADBEEF,5);
print "ERROR: Failed to set MAC address.";
print "Final registers:"
printconfig();
-
+
if(sys.argv[1]=="carrier"):
if len(sys.argv)>2:
client.RF_setfreq(eval(sys.argv[2]));
print "\nHolding a carrier wave.";
while(1):
time.sleep(1);
+
+if(sys.argv[1]=="tune"):
+ if len(sys.argv)>2:
+ client.tune(sys.argv[2]);
+ else:
+ print "Specify a tuning, such as 'aa,c78c65805e,14,09'";
if(sys.argv[1]=="regs"):
for r in range(0,0x20):
print "r[0x%02x]=0x%010x //%16s " % (r,client.peek(r),regnames[r]);
printpacket(packet);
sys.stdout.flush();
+if(sys.argv[1]=="regbits"):
+ print "Scanning registers to determine which bits are valid."
+ regbits=range(0,0x30);
+ for r in range(0,0x30):
+ old=client.peek(r);
+ #Which bits can be set?
+ client.poke(r,0xFF);
+ ones=client.peek(r);
+ #Which bits can be clear?
+ client.poke(r,0x00);
+ zeroes=client.peek(r);
+ regbits[r]=(ones & (~zeroes));
+ for r in range(0,0x30):
+ if regbits[r]!=0:
+ print "r[0x%02x] masked %02x // %s" % (r,regbits[r], regnames[r]);
+if(sys.argv[1]=="sniffprom"):
+ #Reversal of transmitter code from nRF_CMD.c of OpenBeacon
+ #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.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:
+ #time.sleep(0.1);
+ packet=client.RF_rxpacket();
+ printpacket(packet);
+ sys.stdout.flush();
+
+class AutoTuner():
+ """This guesses addresses by searching through packets."""
+ addresses={};
+ client=None;
+
+ #Limits on search space, because you usually know what you're looking for.
+ rate=False;
+ chan=False;
+ sync=False;
+ macreject=False;
+ printing=False;
+ startch=0; #Useful for forcing an early match.
+ def init(self,goodfet,
+ rate=True,chan=True,sync=True, macreject=True, printing=False):
+ """Initializes a link to the GoodFET for autotuning."""
+ self.client=goodfet;
+ self.rate=rate;
+ self.chan=chan;
+ self.sync=sync;
+ self.macreject=macreject;
+ self.printing=printing;
+
+ client.poke(0x00,0x00); #Stop nRF
+ client.poke(0x01,0x00); #Disable Shockburst
+ client.poke(0x02,0x01); #Set RX Pipe 0
+
+ #Disable shockburst.
+ client.poke(0x1C,0x00);
+ client.poke(0x1D,0x00);
+
+ client.RF_setmaclen(2); # SETUP_AW for shortest
+
+ #historic
+ #client.RF_setsmac(0x00AA);
+ #client.RF_setsmac(0x0055);
+
+ client.poke(0x00,0x70|0x03); #prime radio.
+
+ return;
+ def packetaddr(self,packet,justmac=False):
+ """Returns a loaded packet address, including channel and rate."""
+
+ sync=self.client.RF_getsmac()&0xFF;
+
+ mac="";
+ #MAC,RF_CH,RATE
+ for i in range(0,5):
+ mac="%s%02x" % (mac,ord(packet[i]));
+ if justmac:
+ return mac;
+ ch=self.client.peek(0x05);
+ rate=self.client.peek(0x06);
+ return "%02x,%s,%02x,%02x" % (
+ sync,mac,ch,rate);
+ def validmac(self,packet):
+ sync=self.client.RF_getsmac()&0xFF;
+ mac=self.packetaddr(packet,justmac=True);
+
+ #BT preamble is A or 5.
+ #Fix this to work on the smallest bit, not the highest.
+ if ((ord(packet[0])&0x80)^(sync&0x80)) and self.macreject:
+ #print "%02x%02x invalid entry." % (sync,ord(packet[0]));
+ #This is a special kind of failure. Freq is probably right, but MAC is wrong.
+ return False;
+ if mac=='5555555555' or mac=='aaaaaaaaaa' or mac=='0000000000' or mac=='ffffffffff':
+ return False;
+ return True;
+
+ def handle(self,packet):
+ """Handles a packet."""
+ if self.printing:
+ printpacket(packet);
+
+ if not self.validmac(packet):
+ #print "Dropped packet from %s" % self.packetaddr(packet,justmac=True);
+ #printpacket(packet);
+ return;
+
+ 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 addr;
+ tunecount=0;
+ def selftune(self,threshold=2,forever=False,
+ delay=5.0):
+ """Tunes to the first strong signal.
+ It's important that this not get triggered by false positives."""
+
+ while 1:
+ self.retune();
+ start=time.mktime(time.localtime());
+ sys.stdout.flush();
+ while (time.mktime(time.localtime())-start) < delay:
+ packet=None;
+ while packet==None:
+ packet=client.RF_rxpacket();
+ addr=guesser.handle(packet);
+ try:
+ count=self.addresses[addr];
+ except:
+ count=0;
+ if count>threshold and forever==False:
+ #Tune it in here?
+ client.tune(addr);
+ return addr;
+
+
+ def retune(self):
+ """Tunes to another channel or preamble looking for the next packet."""
+ count=self.tunecount;
+ self.tunecount=count+1;
+
+ #Swap the SYNC value most often.
+ if self.sync:
+ sync=0x00AA;
+ if count&1:
+ sync=0x0055;
+ self.client.RF_setsmac(sync);
+ count=(count>>1);
+
+ if self.rate:
+ #Then the data rate.
+ rate=0;
+
+ #This swaps between 1Mbps and 2Mbps.
+ #TODO add support for 256kbps, if anyone uses it.
+ if count&1:
+ rate=rate|0x08;
+ #print "Setting rate to 0x%02x" % rate;
+ if(rate==0x20):
+ rate=0x08;
+ self.client.poke(0x06,rate);
+ count=(count>>1);
+
+ if self.chan:
+ self.client.poke(0x05,
+ (count+self.startch)&0x7f);
+ print "Tuned to %i MHz" % (
+ self.client.RF_getfreq()
+ /(10**6));
+ #Grab two packets to clear buffers.
+ #Should retune only after a few packets to reduce this delay.
+ packet=client.RF_rxpacket();
+ packet=client.RF_rxpacket();
+ return;
+
+
+if(sys.argv[1]=="autotune"):
+ #Reversal of transmitter code from nRF_CMD.c of OpenBeacon
+ #TODO remove all poke() calls.
+ guesser=AutoTuner();
+ guesser.init(client,rate=True,sync=True,chan=True);
+
+
+ #client.RF_setfreq(2481 * 10**6);
+ client.poke(0x06,0x09); #2MBps, -18dBm in RF_SETUP
+ client.poke(0x07,0x78); #Reset status register
+
+ #This is determined by the MAC, which we don't yet know.
+
+ #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 "Autotuning on %i MHz" % (
+ client.RF_getfreq()/10**6);
+ print "sync,mac,r5,r6";
+ #Now we're ready to get packets.
+ guesser.selftune(threshold=2,
+ forever=True);
+
+if(sys.argv[1]=="autotunebt"):
+ #Reversal of transmitter code from nRF_CMD.c of OpenBeacon
+ #TODO remove all poke() calls.
+ guesser=AutoTuner();
+ guesser.init(client,rate=True,sync=False,chan=True,
+ macreject=False, printing=True);
+
+
+ #client.RF_setfreq(2481 * 10**6);
+ client.poke(0x06,0x00); #1MBps
+ client.poke(0x07,0x78); #Reset status register
+
+ #Bluetooth preamble is 0xA; BTLE is 0xAA.
+ client.RF_setsmac(0x000A);
+
+ #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 "Autotuning on %i MHz" % (
+ client.RF_getfreq()/10**6);
+ print "sync,mac,r5,r6";
+ #Now we're ready to get packets.
+ guesser.selftune(threshold=2,
+ forever=True);
+
+if(sys.argv[1]=="sniffmacs"):
+ #Reversal of transmitter code from nRF_CMD.c of OpenBeacon
+ #TODO remove all poke() calls.
+ guesser=AutoTuner();
+ guesser.init(client,rate=False,sync=True,chan=False);
+
+ #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 "Holding autotune on %i MHz" % (
+ client.RF_getfreq()/10**6);
+ print "sync,mac,r5,r6";
+ #Now we're ready to get packets.
+ guesser.selftune(threshold=2,
+ forever=True);
+
+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(5);
+
+ #Known pairs. The channel and the low address bytes must match.
+ #client.RF_setfreq((2400+0x13) * 10**6);
+ #client.RF_setsmac(0xc00a3598cd);
+
+ #client.RF_setfreq((2400+0x15) * 10**6);
+ #client.RF_setsmac(0xc10446facd);
+
+ #Mac packet length, illegally 0-length address field.
+ client.RF_setpacketlen(16);
+
+ #aa,c00a3598cd,13,09
+ if len(sys.argv)>2:
+ client.tune(sys.argv[2]);
+ else:
+
+ print "Searching for a keyboard.";
+
+ guesser=AutoTuner();
+ guesser.init(client, rate=False, sync=True, chan=True);
+ guesser.selftune(threshold=4,forever=False,
+ delay=10.0);
+
+ client.poke(0x00,0x00); #Stop nRF
+ client.poke(0x01,0x00); #Disable Shockburst
+ client.poke(0x02,0x01); #Set RX Pipe 0
+ client.RF_setmaclen(5);
+
+ #Finally, dynamic payload lengths need to be enabled.
+ #client.poke(0x01,0x01);
+ client.poke(0x1C,0x01);
+ client.poke(0x1D,0x06);
+
+ client.poke(0x00,0x70|0x03); #prime radio.
+ 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(1);
+ packet=client.RF_rxpacket();
+ #print ".";
+ printmspacket(packet);
+ sys.stdout.flush();
+
+if(sys.argv[1]=="sniffant"):
+ #Prototyped on Garmin device.
+ #Channel hopping is pretty damned fast, hard to follow.
+ #This doesn't really work yet, still experimenting.
+
+ #Might be more effective to sniff knowing the MFG ID and Dev. ID,
+ #as these predict a lot of the MAC address.
+
+ client.poke(0x00,0x00); #Stop nRF
+ client.poke(0x01,0x00); #Disable Shockburst
+ client.poke(0x02,0x01); #Set RX Pipe 0
+
+ client.poke(0x05,57); #broadcast-only channel
+ client.poke(0x06,0x00); #1MBps
+ client.poke(0x07,0x78); #Reset status register
+
+ #Is this appropriate? Might be 3.
+ client.RF_setmaclen(5);
+
+
+ #Mac packet length, illegally 0-length address field.
+ client.RF_setpacketlen(16);
+
+ if len(sys.argv)>2:
+ client.tune(sys.argv[2]);
+ else:
+
+ print "Searching for ANT+.";
+
+ guesser=AutoTuner();
+ guesser.init(client, rate=False, sync=True, chan=True);
+ guesser.selftune(threshold=2,forever=False,
+ delay=9.0);
+
+ client.poke(0x00,0x00); #Stop nRF
+ client.poke(0x01,0x00); #Disable Shockburst
+ client.poke(0x02,0x01); #Set RX Pipe 0
+ client.RF_setmaclen(5);
+
+
+ client.poke(0x00,0x70|0x03); #prime radio.
+ print "Dumping ANT 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(1);
+ packet=client.RF_rxpacket();
+ #print ".";
+ printpacket(packet);
+ sys.stdout.flush();
+
+
+
+
if(sys.argv[1]=="sniffsf"):
#Reversal of transmitter code from nRF_CMD.c of OpenBeacon
#TODO remove all poke() calls.
#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.
printpacket(packet);
sys.stdout.flush();
-if(sys.argv[1]=="snifftp"):
+if(sys.argv[1]=="sniffnike"):
+ #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.RF_setfreq((2400+0x29) * 10**6);
- client.poke(0x06,0x00); #1Mbps
+ client.RF_setfreq(2425 * 10**6);
+ client.poke(0x06,0x20|0x06); #250 kbps
client.poke(0x07,0x78); #Reset status register
- client.RF_setmaclen(3); # SETUP_AW for 3-byte addresses.
- client.RF_setsmac(0x123456);
- client.RF_setpacketlen(4);
+ #Nike Settings
+ client.RF_setmaclen(2); # Illegal by datasheet, but it works!
+ client.RF_setsmac(0xc2bd);
+ client.RF_settmac(0xc2bd); #Should we forge data?
+
+ client.RF_setpacketlen(32); #No idea what the length is.
#Power radio, prime for RX, two-byte checksum.
- client.poke(0x00,0x70|0x03|0x04|0x08);
+ client.poke(0x00,0x70|0x03); #0x08 for checksum, 0x04 for two bytes.
print "Listening as %010x on %i MHz" % (client.RF_getsmac(),
client.RF_getfreq()/10**6);
+ print "Expect some false-positives.";
+
#Now we're ready to get packets.
while 1:
packet=None;
printpacket(packet);
sys.stdout.flush();
-if(sys.argv[1]=="hosttp"):
+if(sys.argv[1]=="snifftp"):
client.poke(0x00,0x00); #Stop nRF
client.poke(0x01,0x00); #Disable Shockburst
client.poke(0x02,0x01); #Set RX Pipe 0
- chan=0x29;
-
- client.RF_setfreq((2400+chan) * 10**6);
+ #Disable shockburst.
+ client.poke(0x1C,0x00);
+ client.poke(0x1D,0x00);
+
+ client.RF_setfreq((2400+0x29) * 10**6);
client.poke(0x06,0x00); #1Mbps
client.poke(0x07,0x78); #Reset status register
while 1:
packet=None;
while packet==None:
+ #time.sleep(0.1);
packet=client.RF_rxpacket();
- mac=((ord(packet[0])<<16)+
- (ord(packet[1])<<8)+
- ord(packet[2]));
- key=packet[3];
- print "%c from %06x" % (key,mac);
+ printpacket(packet);
sys.stdout.flush();
+
if(sys.argv[1]=="sniff"):
+ if len(sys.argv)>2:
+ print "Set MAC to %s" % sys.argv[2];
+ client.tune(sys.argv[2]);
+ client.RF_setmaclen(5);
+
#client.poke(0x00,0x00); #Stop nRF
client.poke(0x07,0x78); #Reset status register
- #Power radio, prime for RX, checksum.
- client.poke(0x00,0x70|0x03|0x08);
+ #Power radio, prime for RX, no checksum.
+ client.poke(0x00,0x70|0x03);
+ #Mac packet length.
+ client.RF_setpacketlen(32);
+ #Mac length, reduced
+ #client.RF_setmaclen(3); # SETUP_AW for shortest
print "Listening as %010x on %i MHz" % (client.RF_getsmac(),
client.RF_getfreq()/10**6);
projects / goodfet / blobdiff