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bluetooth: Add LE Bluetooth Device Address EIR #4621

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Merged
gpotter2 merged 1 commit into from
Feb 3, 2025
+19 −0
Merged

bluetooth: Add LE Bluetooth Device Address EIR #4621

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13 changes: 13 additions & 0 deletions scapy/layers/bluetooth.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1270,6 +1270,18 @@ class EIR_AdvertisingInterval(EIR_Element):
]


class EIR_LEBluetoothDeviceAddress(EIR_Element):
name = "LE Bluetooth Device Address"
fields_desc = [
XBitField('reserved', 0, 7, tot_size=-1),
BitEnumField('addr_type', 0, 1, end_tot_size=-1, enum={
0x0: 'Public',
0x1: 'Random'
}),
LEMACField('bd_addr', None)
]


class EIR_Appearance(EIR_Element):
name = "EIR_Appearance"
fields_desc = [
Expand Down Expand Up @@ -2649,6 +2661,7 @@ class HCI_LE_Meta_Long_Term_Key_Request(Packet):
bind_layers(EIR_Hdr, EIR_PublicTargetAddress, type=0x17)
bind_layers(EIR_Hdr, EIR_Appearance, type=0x19)
bind_layers(EIR_Hdr, EIR_AdvertisingInterval, type=0x1a)
bind_layers(EIR_Hdr, EIR_LEBluetoothDeviceAddress, type=0x1b)
bind_layers(EIR_Hdr, EIR_ServiceData32BitUUID, type=0x20)
bind_layers(EIR_Hdr, EIR_ServiceData128BitUUID, type=0x21)
bind_layers(EIR_Hdr, EIR_URI, type=0x24)
Expand Down
6 changes: 6 additions & 0 deletions test/scapy/layers/bluetooth.uts
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Original file line number Diff line number Diff line change
Expand Up @@ -481,6 +481,12 @@ p = HCI_Event_Hdr(hex_bytes('3e23020100002e4961121110170201060f0954656c655361742
assert EIR_AdvertisingInterval in p
assert p[EIR_AdvertisingInterval].advertising_interval == 400

= Parse EIR_LEBluetoothDeviceAddress
p = HCI_Event_Hdr(hex_bytes("3e2a02010000d93519d7ba4c1e0201020affc4000734151317fd80081b00d93519d7ba4c0303b9fe020ad4ad"))
assert EIR_LEBluetoothDeviceAddress in p
assert p[EIR_LEBluetoothDeviceAddress].addr_type == 0x0
assert p[EIR_LEBluetoothDeviceAddress].bd_addr == '4c:ba:d7:19:35:d9'

= Parse EIR_Appearance
p = BTLE(hex_bytes("d6be898e201660d4d3cebffb0201050319420c0303e7fe040948393850c27c"))
assert EIR_Appearance in p
Expand Down
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