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fix: Filter out 1-byte keepalive packets from Columba Android peers

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Add filtering for Android Columba's 15-second keepalive packets to prevent
unnecessary processing. Keepalive packets are 1 byte (0x00) and should be
ignored by the BLE interface.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
torlando-tech 2025-11-13 17:27:48 -05:00
commit f759af46e7
1 changed files with 12 additions and 0 deletions
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12
src/RNS/Interfaces/BLEInterface.py
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@ -1413,6 +1413,12 @@ class BLEInterface(Interface):
"""
RNS.log(f"{self} received {len(data)} bytes from peer {peer_address}", RNS.LOG_EXTREME)
# Filter 1-byte keep-alive packets from Columba (Android) peers
# Columba sends 0x00 every 15 seconds to prevent Android BLE supervision timeout
if len(data) == 1 and data[0] == 0x00:
RNS.log(f"{self} received keep-alive from peer {peer_address}, ignoring", RNS.LOG_EXTREME)
return
# Look up peer identity to compute fragmenter key
peer_identity = self.address_to_identity.get(peer_address)
if not peer_identity:
@ -1496,6 +1502,12 @@ class BLEInterface(Interface):
"""
RNS.log(f"{self} received {len(data)} bytes from central {sender_address}", RNS.LOG_EXTREME)
# Filter 1-byte keep-alive packets from Columba (Android) peers
# Columba sends 0x00 every 15 seconds to prevent Android BLE supervision timeout
if len(data) == 1 and data[0] == 0x00:
RNS.log(f"{self} received keep-alive from central {sender_address}, ignoring", RNS.LOG_EXTREME)
return
# Check if we have peer identity
peer_identity = self.address_to_identity.get(sender_address)