2026-07-13 16:16:43 +00:00

72 lines
2.7 KiB
Nim

import std/[unittest, net, options]
import pkg/chronos
import pkg/libp2p/[multiaddress, multihash, multicodec]
import pkg/results
import ../../storage/nat {.all.}
import ../../storage/utils
import ../../storage/utils/natutils
suite "NAT Address Tests":
test "nattedAddress with local addresses":
# Setup test data
let
udpPort = Port(1234)
natConfig = NatConfig(hasExtIp: true, extIp: parseIpAddress("8.8.8.8"))
# Create test addresses
localAddr = MultiAddress.init("/ip4/127.0.0.1/tcp/5000").expect("valid multiaddr")
anyAddr = MultiAddress.init("/ip4/0.0.0.0/tcp/5000").expect("valid multiaddr")
publicAddr =
MultiAddress.init("/ip4/192.168.1.1/tcp/5000").expect("valid multiaddr")
# Expected results
let
expectedDiscoveryAddrs = @[
MultiAddress.init("/ip4/8.8.8.8/udp/1234").expect("valid multiaddr"),
MultiAddress.init("/ip4/8.8.8.8/udp/1234").expect("valid multiaddr"),
MultiAddress.init("/ip4/8.8.8.8/udp/1234").expect("valid multiaddr"),
]
expectedlibp2pAddrs = @[
MultiAddress.init("/ip4/8.8.8.8/tcp/5000").expect("valid multiaddr"),
MultiAddress.init("/ip4/8.8.8.8/tcp/5000").expect("valid multiaddr"),
MultiAddress.init("/ip4/8.8.8.8/tcp/5000").expect("valid multiaddr"),
]
#ipv6Addr = MultiAddress.init("/ip6/::1/tcp/5000").expect("valid multiaddr")
addrs = @[localAddr, anyAddr, publicAddr]
# Test address remapping
let (libp2pAddrs, discoveryAddrs) = nattedAddress(natConfig, addrs, udpPort)
# Verify results
check(discoveryAddrs == expectedDiscoveryAddrs)
check(libp2pAddrs == expectedlibp2pAddrs)
suite "NAT restart safety":
test "setupNat does not crash when extIp is cached from a previous start":
# Reproduces the restart crash (SIGSEGV) seen with nat=upnp.
#
# After a first start, extIp was cached and upnp was initialised.
# After a stop, extIp was still cached, but upnp was not initialised because
# the thread was destroyed using the destroy function.
# As a result, the next start crashed in setupNat when it tried to do port mapping
# because getExternalIp wasn't called anymore (it was cached) and upnp was not initialised.
extIp = some(parseIpAddress("1.2.3.4"))
strategy = NatStrategy.NatUpnp
let res = setupNat(NatStrategy.NatUpnp, Port(8500), Port(8500), "storage")
check res.tcpPort.isSome
test "stopNat resets NAT state so the next start is clean":
# Simulates leftover state
extIp = some(parseIpAddress("1.2.3.4"))
strategy = NatStrategy.NatNone
activeMappings.add(PortMappings())
stopNat()
check extIp.isNone
check activeMappings.len == 0
check natThreads.len == 0