Added payload data inactivity metric to Link API
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parent
ea369015ee
commit
c2c3a144d2
27
RNS/Link.py
27
RNS/Link.py
@ -124,7 +124,7 @@ class Link:
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link.last_inbound = time.time()
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link.start_watchdog()
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RNS.log("Incoming link request "+str(link)+" accepted", RNS.LOG_VERBOSE)
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RNS.log("Incoming link request "+str(link)+" accepted", RNS.LOG_DEBUG)
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return link
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except Exception as e:
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@ -133,7 +133,7 @@ class Link:
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return None
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else:
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RNS.log("Invalid link request payload size, dropping request", RNS.LOG_VERBOSE)
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RNS.log("Invalid link request payload size, dropping request", RNS.LOG_DEBUG)
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return None
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@ -150,6 +150,7 @@ class Link:
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self.last_inbound = 0
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self.last_outbound = 0
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self.last_proof = 0
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self.last_data = 0
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self.tx = 0
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self.rx = 0
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self.txbytes = 0
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@ -460,7 +461,7 @@ class Link:
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def no_inbound_for(self):
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"""
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:returns: The time in seconds since last inbound packet on the link.
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:returns: The time in seconds since last inbound packet on the link. This includes keepalive packets.
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"""
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activated_at = self.activated_at if self.activated_at != None else 0
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last_inbound = max(self.last_inbound, activated_at)
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@ -468,13 +469,19 @@ class Link:
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def no_outbound_for(self):
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"""
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:returns: The time in seconds since last outbound packet on the link.
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:returns: The time in seconds since last outbound packet on the link. This includes keepalive packets.
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"""
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return time.time() - self.last_outbound
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def no_data_for(self):
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"""
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:returns: The time in seconds since payload data traversed the link. This excludes keepalive packets.
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"""
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return time.time() - self.last_data
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def inactive_for(self):
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"""
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:returns: The time in seconds since activity on the link.
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:returns: The time in seconds since activity on the link. This includes keepalive packets.
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"""
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return min(self.no_inbound_for(), self.no_outbound_for())
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@ -484,8 +491,10 @@ class Link:
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"""
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return self.__remote_identity
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def had_outbound(self):
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def had_outbound(self, is_keepalive=False):
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self.last_outbound = time.time()
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if not is_keepalive:
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self.last_data = self.last_outbound
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def teardown(self):
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"""
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@ -636,7 +645,7 @@ class Link:
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def send_keepalive(self):
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keepalive_packet = RNS.Packet(self, bytes([0xFF]), context=RNS.Packet.KEEPALIVE)
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keepalive_packet.send()
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self.had_outbound()
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self.had_outbound(is_keepalive = True)
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def handle_request(self, request_id, unpacked_request):
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if self.status == Link.ACTIVE:
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@ -742,6 +751,8 @@ class Link:
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RNS.log("Link-associated packet received on unexpected interface! Someone might be trying to manipulate your communication!", RNS.LOG_ERROR)
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else:
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self.last_inbound = time.time()
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if packet.context != RNS.Packet.KEEPALIVE:
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self.last_data = self.last_inbound
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self.rx += 1
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self.rxbytes += len(packet.data)
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if self.status == Link.STALE:
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@ -900,7 +911,7 @@ class Link:
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if not self.initiator and packet.data == bytes([0xFF]):
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keepalive_packet = RNS.Packet(self, bytes([0xFE]), context=RNS.Packet.KEEPALIVE)
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keepalive_packet.send()
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self.had_outbound()
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self.had_outbound(is_keepalive = True)
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# TODO: find the most efficient way to allow multiple
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