git.zerfleddert.de Git - hmcfgusb/blob - README.md

   1 This repository contains utilities to use the [HM-CFG-USB(2)][] (HomeMatic USB
   2 Konfigurations-Adapter, seems to be discontinued) from [ELV][] on Linux/Unix
   3 by using [libusb 1.0][].
   4
   5 The HM-CFG-USB can be used to send and receive [BidCoS-Packets][] to control
   6 [HomeMatic][] home automation devices (like remote controllable sockets,
   7 switches, sensors, ...).
   8
   9 This repository contains, amongst others, an application, which emulates the
  10 HomeMatic LAN configuration adapter-protocol to make it possible to use the
  11 HM-CFG-USB in [Fhem][] or as a lan configuration tool for the [CCU][] or the
  12 HomeMatic windows configuration software, also supporting devices using
  13 AES-signing like [KeyMatic][].
  14
  15 [HM-CFG-USB(2)]: http://www.eq-3.de/Downloads/eq3/downloads_produktkatalog/homematic/bda/HM-CFG-USB-2_-UM-eQ-3-150129-web.pdf
  16 [ELV]: http://www.elv.de/
  17 [libusb 1.0]: http://www.libusb.org/
  18 [BidCoS-Packets]: http://homegear.eu/index.php/BidCoS%C2%AE_Packets
  19 [HomeMatic]: http://www.homematic.com/
  20 [Fhem]: http://fhem.de/
  21 [KeyMatic]: http://www.elv.de/homematic-funk-tuerschlossantrieb-keymatic-silber-inkl-funk-handsender.html
  22 [CCU]: http://www.elv.de/homematic-zentrale-ccu-2.html
  23
  24 ### Short hmland HowTo: ###
  25
  26 1.  Install prerequisites:
  27     `apt-get install libusb-1.0-0-dev build-essential git`
  28 2.  Get the current version of this software (choose **one** option):
  29     *   Get the current *release*-version as a .tar.gz:
  30         1.  Download the latest version from the [releases-directory][].
  31             Version 0.100 is used as an example for the following commands.
  32         2.  Extract the archive: `tar xzf hmcfgusb-0.100.tar.gz`
  33         3.  Change into the new directory: `cd hmcfgusb-0.100`
  34     *   Get the current *development*-version via git (can be easily updated with `git pull`):
  35         1.  `git clone https://git.zerfleddert.de/git/hmcfgusb`
  36         2.  Change into the new directory: `cd hmcfgusb`
  37     *   Get the current *development*-version as an archive:
  38         1.  [hmcfgusb-HEAD-xxxxxxx.tar.gz][] (xxxxxxx is part of the commit-id.
  39             xxxxxxx is just a placeholder for this HowTo, use your value)
  40         2.  Extract the archive: `tar xzf hmcfgusb-HEAD-xxxxxxx.tar.gz`
  41         3.  Change into the new directory: `cd hmcfgusb-HEAD-xxxxxxx`
  42 3.  Build the code: `make`
  43 4.  Optional: Install udev-rules so normal users can access the device:
  44     `sudo cp hmcfgusb.rules /etc/udev/rules.d/`
  45 5.  Plug in the HM-CFG-USB
  46 6.  Run hmland (with debugging the first time, see `-h` switch):
  47     `./hmland -p 1234 -D`
  48 7.  Configure Fhem to use your new HMLAN device:
  49     ``define hmusb HMLAN 127.0.0.1:1234``
  50     ``attr hmusb hmId <hmId>``
  51
  52 **Important compatibility information:**
  53 If older Fhem-versions (before 2015-06-19) or [Homegear][] before 2015-07-01
  54 is used to connect to hmland, the `-I` switch might be needed to
  55 impersonate a LAN-interface (this replaces the identity string HM-USB-IF with
  56 HM-LAN-IF). eQ-3 rfd (CCU and configuration software) works without this switch.
  57 Software which needs this will not keep a stable connection open to
  58 hmland without this switch. It was the hardcoded default in versions
  59 < 0.100.
  60
  61 This incompatibility is needed so connecting software is able to
  62 differentiate between HM-CFG-LAN and HM-CFG-USB.
  63
  64 **Important security information:**
  65 Versions before 0.101 do not correctly transmit the AES channel-mask
  66 to the HM-CFG-USB, which results in signature-requests not being generated
  67 by the device in most cases. This can lead to processing of unsigned messages
  68 by the host-software. If you are relying on authenticated messages
  69 (with e.g. aesCommReq in Fhem) from devices like door-sensors and remotes,
  70 you should upgrade to at least version 0.101.
  71
  72 [releases-directory]: https://git.zerfleddert.de/hmcfgusb/releases/
  73 [hmcfgusb-HEAD-xxxxxxx.tar.gz]: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/hmcfgusb/snapshot/HEAD.tar.gz
  74 [Homegear]: https://www.homegear.eu/
  75
  76 ### Updating the HM-CFG-USB firmware to version 0.967: ###
  77
  78 1.  Compile the hmcfgusb utilities like in the hmland HowTo above
  79     (steps 1 to 5) and stay in the directory
  80 2.  Download the new firmware: [hmusbif.03c7.enc][] (extracted from the
  81     [Firmware update tool][]):
  82     `wget https://git.zerfleddert.de/hmcfgusb/firmware/hmusbif.03c7.enc`
  83 3.  Make sure that hmland is not running
  84 4.  Flash the update to the USB-stick:
  85     `./flash-hmcfgusb hmusbif.03c7.enc` (You might need to use `sudo` for this)
  86
  87 [hmusbif.03c7.enc]: https://git.zerfleddert.de/hmcfgusb/firmware/hmusbif.03c7.enc
  88 [Firmware update tool]: http://www.eq-3.de/Downloads/Software/Firmware%20Update%20Tool/HM-CFG-USB-2_FW-UpdateTool-Usersoftware_V1_1_eQ-3_140619.zip
  89
  90 ### Updating HomemMatic devices over the air (OTA) (also for CUL- and HM-MOD-UART-devices): ###
  91
  92 1.  Compile the hmcfgusb utilities like in the hmland HowTo above
  93     (steps 1 to 5) and stay in the directory
  94 2.  Download the new firmware from [eQ-3][], in this example the HM-CC-RT-DN
  95     firmware version 1.4
  96 3.  Extract the tgz-file: `tar xvzf hm_cc_rt_dn_update_V1_4_001_141020.tgz`
  97 4.  Make sure that hmland is not running
  98 *   When using the **[HM-CFG-USB(2)][]**, flash the new firmware to the device
  99     with serial *KEQ0123456*:
 100      `./flash-ota -f hm_cc_rt_dn_update_V1_4_001_141020.eq3 -s KEQ0123456`
 101 *   When using a **[culfw][]**-, **[a-culfw][]**- or **[tsculfw][]**-based
 102     device (**[CUL][]/[COC][]/...**), flash the new firmware to the device
 103     with serial *KEQ0123456*:
 104      `./flash-ota -f hm_cc_rt_dn_update_V1_4_001_141020.eq3 -s KEQ0123456 -c /dev/ttyACM0`
 105 *   When using the **[HM-MOD-UART][]**, flash the new firmware to the device
 106     with serial *KEQ0123456*:
 107      `./flash-ota -f hm_cc_rt_dn_update_V1_4_001_141020.eq3 -s KEQ0123456 -U /dev/ttyAMA0`
 108
 109 **Automatic firmware-updates:**
 110 The options `-C` (HMID of central), `-D` (HMID of device) and `-K` (AES key w/
 111 index) can be used to send a device to the bootloader automatically without
 112 manually rebooting the device while pressing buttons:
 113
 114 `./flash-ota -f hm_cc_rt_dn_update_V1_4_001_141020.eq3 -C ABCDEF -D 012345 -K 01:00112233445566778899AABBCCDDEEFF`
 115
 116 `-K` is only needed, when AES signing is active on the device.
 117
 118 **Acknowledgments:**
 119 flash-ota uses the public domain [AES implementation by Brad Conte][] to answer
 120 signing-requests with culfw-devices.
 121
 122 [eQ-3]: http://www.eq-3.de/downloads.html
 123 [culfw]: http://culfw.de/culfw.html
 124 [a-culfw]: https://forum.fhem.de/index.php?topic=35064.0
 125 [tsculfw]: https://forum.fhem.de/index.php?topic=24436.0
 126 [CUL]: http://busware.de/tiki-index.php?page=CUL
 127 [COC]: http://busware.de/tiki-index.php?page=COC
 128 [HM-MOD-UART]: https://www.elv.de/homematic-funkmodul-fuer-raspberry-pi-bausatz.html
 129 [AES implementation by Brad Conte]: https://github.com/B-Con/crypto-algorithms