Bluetooth on CE

1
Bluetooth on CE

• ?????? ???????
• ?????? ??????? ???.

???? ?????? ???? ??? ???? ??? ?????????.
2
????? ??????? ????????

• ???????? ???? ????? ????? Windows CE
• ??? ?????? ??? ????? CE ??????, ????? ????.
• ????? ????? ??????? ????? ????? ????? ?????.
• ????? ?????? ?????????? ??? ?????? Bluetooth
• ????? ??????? ?"? ????? ??????
• Detects ???? ???? ????? ???????? ????? ????
  CE.
• Selects ???? ??? ????? ??? Name-Server.
• Connects ????? ???? ?????? ????? ???? ???
  ?????.
• ????? ?????? ??-??? (Bluetooth Piconet).
• ????? ?????? ????? ? Point to Multipoint.

3
???? ?????? (Usage Model)
Detects
Selects
4
???? ?????? (Usage Model)
Connects
5
????? ??????

• FFE NT Server (Fast File Exchange) 1
• 2 ????? CE - X86 Image
• remote debugging ????? eMbedded Visual C 3.0
• 3 ?????? Ericsson Bluetooth Toolkit
• 1 Merlin Bluetooth Protocol Analyzer -Sniffer
• "???-??????" ?????? ?????? ?????? ?????? ???????.
• ?????? ?? ??????????? ?????, ?????? ???????
  ??????.

FFE Server NT
6
????? ?????? - ??????? ???????

• ?? ????? ????? ????? ?? ??? ?? ????.
• ?????? Files-On-Air ???? ?? ????? CE ??????.
• ????? ????? ?? ?????? ??? 2 ????? CE .
• ?????? - ????? ?????? ?????, ?????, ????
  ??????.
• ?????? FFE-Server ???? ?? ???? ???? (???).
• ????? ????? ???? (???? ????) ?"? ???? CE (??
  ???).
• ?????? - ?????? ???? ??????? ?????, ?? ????
  ??????.

FFE Server NT
7
Bluetooth - ???????????
???? ???? ?' ?? ???????? ????? ????????? SW
layers ?? ??? ?????? ?????? ?????? CE ????
?????? ???? ?? Open Source
???? ???? ?' ?? ???????? ???? ????? ?? ??????
(HCI )
8
?????? ??????????? - ????? ?????? ...
FFE Usage model
FFE Profile
L2CAP SW layer RFCOMM SW layer

• ??????? ?? ???????.
• ????? ????? ???????
• ??? ?????? ??? ???? ? 3
• 1) ?????????? ???????.
• 2) ????? ??????.
• 3) ????? ???? ?????.

9
????? ?????? ??????????? - ??? ????

• ????? ? HCI ????? ????? ?????? ??? ???.
• Name Discovery (Files-On-Air, FFE-Server)

10
??? ?????? - FFE

• Fast File Exchange Profile .
• ?? ????? ???? ?? OBEX (????? PUT ?????)

Client Side
Server Side
???? ???? ????? ????
RFCOMM Link Creation
PUT
Cont ...
PUT
Cont ...
??? ????? ...
FPUT
SUCCESS (File OK)
11
??? ?????? - FFE primitives
PUT
CONTINUE
12
????? ?????? ??? RFCOMM

• FFE - ?????? ???????, ??????? ????? ?? 20 .
• ???? ?????? ??? ?? ???? ??????? (?????? ?? ????
  ??????? ?????)

HCI handles L2CAP channels RFCOMM DLCIs
HCI handles L2CAP channels RFCOMM DLCIs
13
????? ????? ?? ???? ????? ??????
14
????? ????? ?? ????? ?????? ??????

• ????? ?? ????? ??????.
• ???? ?????? ?????? ??? ?????.
• ????? ?? ????? PUT , ????? ???? ?????? ????? ????

15
Sniffing ??????? FFE ?"? Merlin

• Bluetooth Protocol Analyzer .
• ???? ?? ???????? ???? ???, ?? ????? ??????.
• ????? ?? ??? ?????? ??? ????? GHz 2.48 - 2.40 .
• ???? ???? ???, ????? ?????? ????? ???? ?????????.
• ????? ????? ?????? ?????, ?????? ???????.
• ???? ???? ?? ?????? Bluetooth , ??? ??????
  ?????..
• Baseband, LMP, L2CAP, SDP, RFCOMM .
• OBEX, PPP, IP, TCP, UDP, HDLC .
• ???????? ??? Master ? - Slaves , ? Piconet .
• ?????? ?????, ?????? ??????? ?? ?????????.
• ?? ???? ???? ?? HCI , ?????? ????? ?????? ??????.

16
Sniffing ??????? FFE ?"? Merlin
17
Sniffing ??????? FFE ?"? Merlin
18
??? ????? ????
tower.jpg
19
??????????? ?? ????????? ?????? ???????

• ?????? ?? ? MTU ??? ???? ????????.
• ????? ????? ?????? ?????????? ???? ??????? ????.

??????

• UART -?????? ??????.
• ????? ?????? ?? ??????.
• ?????? ????? ?? ???????.

20
TODO TODA

• ??????
• ???????? ???? ???? ???? ????? ???, ?? ???????.
• ????? ??? ??????? ????? ????? ?????? ??????
  ??????.
• ????? ???? ?? ?? ????? ???? ??? Bluetooth ????.
• ????? ????? ??? ????? ????? ?????? - Win-CE.
• ????? ???? ????? ????????.
• ??? ?? ??????? ??? ????.
• ????? ????? ...
• ????? ???????? SDP , ????? ????? ??????? ???
  ????.
• ????? ??????? FFE , ???? Multi Client Scenario .
  
• ????? ??? FTP ???.
• ?????
• ????? ??? ?????????, ?? ????? ???????? ??????.
• ??? ???? ?????? ??????? ?? ?????? ??????.
• ? Microsoft , ?? ?????? ??????? ??????? ???.