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Added payload data inactivity metric to Link API

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This commit is contained in:
Mark Qvist 2024-02-29 23:05:16 +01:00
parent ea369015ee
commit c2c3a144d2
1 changed files with 19 additions and 8 deletions
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27
RNS/Link.py
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@ -124,7 +124,7 @@ class Link:
link.last_inbound = time.time()
link.start_watchdog()
RNS.log("Incoming link request "+str(link)+" accepted", RNS.LOG_VERBOSE)
RNS.log("Incoming link request "+str(link)+" accepted", RNS.LOG_DEBUG)
return link
except Exception as e:
@ -133,7 +133,7 @@ class Link:
return None
else:
RNS.log("Invalid link request payload size, dropping request", RNS.LOG_VERBOSE)
RNS.log("Invalid link request payload size, dropping request", RNS.LOG_DEBUG)
return None
@ -150,6 +150,7 @@ class Link:
self.last_inbound = 0
self.last_outbound = 0
self.last_proof = 0
self.last_data = 0
self.tx = 0
self.rx = 0
self.txbytes = 0
@ -460,7 +461,7 @@ class Link:
def no_inbound_for(self):
"""
:returns: The time in seconds since last inbound packet on the link.
:returns: The time in seconds since last inbound packet on the link. This includes keepalive packets.
"""
activated_at = self.activated_at if self.activated_at != None else 0
last_inbound = max(self.last_inbound, activated_at)
@ -468,13 +469,19 @@ class Link:
def no_outbound_for(self):
"""
:returns: The time in seconds since last outbound packet on the link.
:returns: The time in seconds since last outbound packet on the link. This includes keepalive packets.
"""
return time.time() - self.last_outbound
def no_data_for(self):
"""
:returns: The time in seconds since payload data traversed the link. This excludes keepalive packets.
"""
return time.time() - self.last_data
def inactive_for(self):
"""
:returns: The time in seconds since activity on the link.
:returns: The time in seconds since activity on the link. This includes keepalive packets.
"""
return min(self.no_inbound_for(), self.no_outbound_for())
@ -484,8 +491,10 @@ class Link:
"""
return self.__remote_identity
def had_outbound(self):
def had_outbound(self, is_keepalive=False):
self.last_outbound = time.time()
if not is_keepalive:
self.last_data = self.last_outbound
def teardown(self):
"""
@ -636,7 +645,7 @@ class Link:
def send_keepalive(self):
keepalive_packet = RNS.Packet(self, bytes([0xFF]), context=RNS.Packet.KEEPALIVE)
keepalive_packet.send()
self.had_outbound()
self.had_outbound(is_keepalive = True)
def handle_request(self, request_id, unpacked_request):
if self.status == Link.ACTIVE:
@ -742,6 +751,8 @@ class Link:
RNS.log("Link-associated packet received on unexpected interface! Someone might be trying to manipulate your communication!", RNS.LOG_ERROR)
else:
self.last_inbound = time.time()
if packet.context != RNS.Packet.KEEPALIVE:
self.last_data = self.last_inbound
self.rx += 1
self.rxbytes += len(packet.data)
if self.status == Link.STALE:
@ -900,7 +911,7 @@ class Link:
if not self.initiator and packet.data == bytes([0xFF]):
keepalive_packet = RNS.Packet(self, bytes([0xFE]), context=RNS.Packet.KEEPALIVE)
keepalive_packet.send()
self.had_outbound()
self.had_outbound(is_keepalive = True)
# TODO: find the most efficient way to allow multiple