Multicast prototype: EXPERIMENTAL.

[rcasallas-silabs]

EXPERIMENTAL: DO NOT MERGE.

Provisionally, the 0x8000 mask is used to signal groups belonging to the new cluster. So a message send to group 0x0100 is processed through the current Group cluster, but a message sent to group 0x8100 is processed using the experimental Multicast cluster.

The Multicast group keys are currently hard-coded in the chip-tool source.

Testing

• DEVICE 1

# Commission
chip-tool pairing ble-thread 1001 hex:$OTBR_DATASET 20202021 1234

# ACL (Groups 0x8101, 0x8102, 0x8103)
chip-tool accesscontrol write acl '[ {"fabricIndex": 1, "privilege": 5, "authMode": 2, "subjects": [112233], "targets": null}, {"fabricIndex": 1, "privilege": 3, "authMode": 3, "subjects": [33025, 33026, 33027], "targets": null} ]' 1002  0

# Set targets
chip-tool multicast set-target 0x8101 "[1]" "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf" 20 1001 0
chip-tool multicast set-target 0x8102 "[1]" "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf" 20 1001 0
chip-tool multicast set-target 0x8103 "[1]" "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf" 20 1001 0

• DEVICE 2

# Commission
chip-tool pairing ble-thread 1002 hex:$OTBR_DATASET20202021 4321

# ACL (Groups 0x8101, 0x8103, 0x8105)
chip-tool accesscontrol write acl '[ {"fabricIndex": 1, "privilege": 5, "authMode": 2, "subjects": [112233], "targets": null}, {"fabricIndex": 1, "privilege": 3, "authMode": 3, "subjects": [33025, 33027, 33029], "targets": null} ]' 1002  0

# Set targets
chip-tool multicast set-target 0x8101 "[1]" "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf" 20 1002 0
chip-tool multicast set-target 0x8103 "[1]" "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf" 20 1002 0
chip-tool multicast set-target 0x8105 "[1]" "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf" 20 1002 0
chip-tool multicast set-target 0x8107 "[1]" "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf" 20 1002 0

• TOGGLE

# Device 1 & 2
chip-tool onoff toggle 0xffffffffffff8101 0

# Device 1
chip-tool onoff toggle 0xffffffffffff8102 0

# Device 2
chip-tool onoff toggle 0xffffffffffff8105 0