miio

Description:

miio

MiIO #



Dart implementation for MiIO LAN protocol.
The protocol an encrypted, binary protocol based on UDP (port 54321), which is used to configure & control smart home devices made by Xiaomi Ecosystem.
CLI #
The package contains a simple CLI program that built on top of miio.
Installation #


Activate from Pub:
pub global activate miio
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Download pre-built binary from Github Action


Example #
# Send discover packet to broadcast IP.
miio discover --ip 192.168.1.255

# Send packet to device.
miio send --ip 192.168.1.100 --token ffffffffffffffffffffffffffffffff --payload '{\"id\": 1, \"method\": \"miIO.info\", \"params\": []}'

# Or use device API.
# Legacy:
miio device --ip 192.168.1.100 --token ffffffffffffffffffffffffffffffff props -p power
miio device --ip 192.168.1.100 --token ffffffffffffffffffffffffffffffff call -m set_power -p on
# MIoT Spec:
miio device --ip 192.168.1.100 --token ffffffffffffffffffffffffffffffff property -s 2 -p 1
miio device --ip 192.168.1.100 --token ffffffffffffffffffffffffffffffff property -s 2 -p 1 -v true
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Protocol #
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Magic Number = 0x2131 | Packet Length (incl. header) |
|-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-|
| Unknown |
|-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-|
| Device ID ("did") |
|-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-|
| Stamp |
|-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-|
| MD5 Checksum |
| ... or Device Token in response to the "Hello" packet |
|-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-|
| Optional variable-sized payload (encrypted) |
|...............................................................|


Packet Length: 16 bits unsigned int
Length in bytes of the whole packet, including header(0x20 bytes).

Unknown: 32 bits
This value is always 0.
0xFFFFFFFF in "Hello" packet.

Device ID: 32 bits
Unique number. Possibly derived from the MAC address.
0xFFFFFFFF in "Hello" packet.

Stamp: 32 bit unsigned int
Continously increasing counter.
Number of seconds since device startup.

MD5 Checksum:
Calculated for the whole packet including the MD5 field itself,
which must be initialized with token.

In "Hello" packet,
this field contains the 128-bit 0xFF.

In the response to the first "Hello" packet,
this field contains the 128-bit device token.

Optional variable-sized payload:
Payload encrypted with AES-128-CBC (PKCS#7 padding).

Key = MD5(Token)
IV = MD5(Key + Token)
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