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https://github.com/DJ2LS/FreeDATA
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adjusted mesh ack
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DJ2LS
parent
4c556e61fd
commit
3736f12712
2 changed files with 76 additions and 39 deletions
111
tnc/mesh.py
111
tnc/mesh.py
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@ -242,13 +242,17 @@ class MeshRouter():
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# check if it is time to transmit
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if time.time() >= transmission_time:
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entry[5] += 1
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print(attempt)
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print("transmit mesh ping")
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self.transmit_mesh_signalling_ping(entry)
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channel_busy_timeout = time.time() + 5
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while ModemParam.channel_busy and time.time() < channel_busy_timeout:
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threading.Event().wait(0.01)
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self.transmit_mesh_signalling_ping(bytes.fromhex(entry[1]))
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else:
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print("wait some more time")
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pass
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#print("wait some more time")
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else:
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print("...")
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pass
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#print("...")
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def received_routing_table(self, data_in):
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try:
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@ -328,6 +332,11 @@ class MeshRouter():
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print("its a ping for us")
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# use case 1: set status to acknowleding if we are the receiver of a PING
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self.add_mesh_ping_to_signalling_table(destination, status="acknowledging")
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channel_busy_timeout = time.time() + 5
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while ModemParam.channel_busy and time.time() < channel_busy_timeout:
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threading.Event().wait(0.01)
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dxcallsign_crc = Station.mycallsign_crc
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self.transmit_mesh_signalling_ping_ack(dxcallsign_crc)
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# use case 2: set status to acknowledged if we are out of retries
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@ -337,7 +346,8 @@ class MeshRouter():
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# use case 1: set status to forwarding if we are not hte receiver of a PING
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self.add_mesh_ping_to_signalling_table(destination, status="forwarding")
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dxcallsign_crc = bytes.fromhex(destination)
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self.transmit_mesh_signalling_ping_ack(dxcallsign_crc)
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#self.transmit_mesh_signalling_ping(dxcallsign_crc)
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# use case 2: set status to forwarded if we are not the receiver of a PING and out of retries
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#self.add_mesh_ping_to_signalling_table(destination, status="forwarded")
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@ -353,40 +363,19 @@ class MeshRouter():
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frametype = "PING-ACK"
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payload = ""
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attempt = 0
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if destination == Station.mycallsign_crc.hex():
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print("its a ping ack for us")
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status = "acknowledged"
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self.add_mesh_ping_ack_to_signalling_table(destination, status)
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else:
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status = "forwarding"
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new_entry = [timestamp, destination, router, frametype, payload, attempt, status]
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self.add_mesh_ping_ack_to_signalling_table(destination, status)
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print(f"it is a ping ack for {destination}")
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print(MESH_SIGNALLING_TABLE)
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for _, item in enumerate(MESH_SIGNALLING_TABLE):
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# use case 3: PING ACK sets state to processed if we are the initiator of a PING
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if destination == Station.mycallsign_crc.hex():
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update_entry = [time.time(), destination, "", "PING-ACK", "", 0, "acknowledged"]
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print(f"UPDATE AND CHANGE {MESH_SIGNALLING_TABLE[_]} >>> {update_entry}")
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MESH_SIGNALLING_TABLE[_] = update_entry
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return
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# use case 1: PING-ACK updates PING-ACK, but stay at attempts
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if destination in item[1] and "PING-ACK" in item[3]:
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update_entry = [item[0], destination, "", "PING-ACK", "", item[5], "forwarding"]
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print(f"UPDATE {MESH_SIGNALLING_TABLE[_]} >>> {update_entry}")
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MESH_SIGNALLING_TABLE[_] = update_entry
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return
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# use case 2: PING-ACK overwrites PING
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# this avoids possible packet loops
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if destination in item[1] and "PING" in item[3]:
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update_entry = [time.time(), destination, "", "PING-ACK", "", 0, "forwarding"]
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print(f"UPDATE AND CHANGE {MESH_SIGNALLING_TABLE[_]} >>> {update_entry}")
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MESH_SIGNALLING_TABLE[_] = update_entry
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return
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if new_entry not in MESH_SIGNALLING_TABLE:
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print(f"INSERT {new_entry} >>> SIGNALLING TABLE")
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MESH_SIGNALLING_TABLE.append(new_entry)
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def add_mesh_ping_to_signalling_table(self, destination, status):
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timestamp = time.time()
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@ -411,8 +400,57 @@ class MeshRouter():
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print(f"INSERT {new_entry} >>> SIGNALLING TABLE")
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MESH_SIGNALLING_TABLE.append(new_entry)
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def add_mesh_ping_ack_to_signalling_table(self, destination, status):
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timestamp = time.time()
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router = ""
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frametype = "PING-ACK"
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payload = ""
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attempt = 0
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new_entry = [timestamp, destination, router, frametype, payload, attempt, status]
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for _, item in enumerate(MESH_SIGNALLING_TABLE):
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# update entry if exists
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if destination in item[1] and "PING" in item[3]:
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update_entry = [item[0], destination, "", "PING-ACK", "", item[5], status]
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print(f"UPDATE {MESH_SIGNALLING_TABLE[_]} >>> {update_entry}")
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MESH_SIGNALLING_TABLE[_] = update_entry
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return
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# add new routing entry if not exists
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if new_entry not in MESH_SIGNALLING_TABLE:
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print(f"INSERT {new_entry} >>> SIGNALLING TABLE")
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MESH_SIGNALLING_TABLE.append(new_entry)
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"""
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for _, item in enumerate(MESH_SIGNALLING_TABLE):
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print(item)
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# use case 3: PING ACK sets state to processed if we are the initiator of a PING and it is not yet acknowledged
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if destination == Station.mycallsign_crc.hex() and item[6] not in ["acknowledged"]:
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update_entry = [time.time(), destination, "", "PING", "", 0, "acknowledged"]
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print(f"UPDATE AND CHANGE {MESH_SIGNALLING_TABLE[_]} >>> {update_entry}")
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MESH_SIGNALLING_TABLE[_] = update_entry
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return
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# use case 1: PING-ACK updates PING-ACK, but stay at attempts
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if destination in item[1] and "PING-ACK" in item[3]:
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update_entry = [item[0], destination, "", "PING-ACK", "", item[5], "forwarding"]
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print(f"UPDATE {MESH_SIGNALLING_TABLE[_]} >>> {update_entry}")
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MESH_SIGNALLING_TABLE[_] = update_entry
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return
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# use case 2: PING-ACK overwrites PING
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# this avoids possible packet loops
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if destination in item[1] and "PING" in item[3]:
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update_entry = [time.time(), destination, "", "PING-ACK", "", 0, "forwarding"]
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print(f"UPDATE AND CHANGE {MESH_SIGNALLING_TABLE[_]} >>> {update_entry}")
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MESH_SIGNALLING_TABLE[_] = update_entry
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return
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if new_entry not in MESH_SIGNALLING_TABLE:
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print(f"INSERT {new_entry} >>> SIGNALLING TABLE")
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MESH_SIGNALLING_TABLE.append(new_entry)
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"""
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def enqueue_frame_for_tx(
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self,
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@ -449,8 +487,7 @@ class MeshRouter():
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threading.Event().wait(0.01)
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def transmit_mesh_signalling_ping(self, data):
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dxcallsign_crc = bytes.fromhex(data[1])
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def transmit_mesh_signalling_ping(self, dxcallsign_crc):
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frame_type = bytes([FRAME_TYPE.MESH_SIGNALLING_PING.value])
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@ -129,7 +129,7 @@ class TCIParam:
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@dataclass
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class TNC:
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version = "0.10.0-alpha.1-mesh-exp9"
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version = "0.10.0-alpha.1-mesh-exp11"
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host: str = "0.0.0.0"
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port: int = 3000
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SOCKET_TIMEOUT: int = 1 # seconds
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