--nat stun is an automatic external IP detection alternative to manual --nat extip option.
It can be used both at home or on production servers without any extra setup.
It is fast (up to 5 ms) and more reliable than alternatives (as the request goes to the public internet).
This auto-detection is useful to run multiple instances of a service in cloud environments
where the node IPs are not known in advance.
* TestTable_ReadRandomNodesGetAll: refactor to integration and examples
* TestTable_bumpNoDuplicates: refactor to integration and examples
* TestUDPv4_smallNetConvergence: speed up from 1.7s to 0.3s by applying the test config
* TestUPNP_DDWRT: move to integration tests
* TestFairMix: split in 2, do more iterations in integration tests
* TestDialSched: speed up from 1s to 0.2s by removing the unexpected dial check,
(keep the check during the integration tests)
If --nat extip:1.2.3.4 option is specified, the port mapping logic
(AddMapping/DeleteMapping) does nothing.
This optimization avoids running a goroutine for doing nothing.
* use "log" for struct fields
* use "logger" for function parameters and local vars
This is a compromise between:
1) using logger := log.New() to avoid aliasing (log := log.New())
2) and keeping it short when logging e.g.: srv.log.Info(...)
* implemented crash reporting for all goroutine panics that aren't handled explicitly
* implemented crash reporting for all goroutine panics that aren't handled explicitly
* changed node defaults back to originals after testing
* implemented panic handling for all goroutines that don't explicitly handle them, outputting the stack trace to a file in crashreports
* handling panics on all goroutines gracefully
* updated missing call
* error assignment
* implemented suggestions
* path.Join added
* implemented Evgeny's suggestions
* changed path.Join to filepath.Join for cross-platform
* added err check
* updated RecoverStackTrace to LogPanic
* updated closures
* removed call of common.Go to some goroutines
* updated scope capture
* removed testing files
* reverted back to original method, I feel like its less intrusive
* update filename for clarity
Changes:
Simplify nested complexity
If an if blocks ends with a return statement then remove the else nesting.
Most of the changes has also been reported in golint https://goreportcard.com/report/github.com/ethereum/go-ethereum#golint
# Conflicts:
# cmd/utils/flags.go
# console/bridge.go
# crypto/bls12381/g2.go
# les/benchmark.go
# les/lespay/server/balance.go
# les/lespay/server/balance_tracker.go
# les/lespay/server/prioritypool.go
# les/odr_requests.go
# les/serverpool.go
# les/serverpool_test.go
# p2p/nodestate/nodestate_test.go
# trie/committer.go
This adds a lock around requests because some routers can't handle
concurrent requests. Requests are also rate-limited.
The Map function request a new mapping exactly when the map timeout
occurs instead of 5 minutes earlier. This should prevent duplicate mappings.
* build: use golangci-lint
This changes build/ci.go to download and run golangci-lint instead
of gometalinter.
* core/state: fix unnecessary conversion
* p2p/simulations: fix lock copying (found by go vet)
* signer/core: fix unnecessary conversions
* crypto/ecies: remove unused function cmpPublic
* core/rawdb: remove unused function print
* core/state: remove unused function xTestFuzzCutter
* core/vm: disable TestWriteExpectedValues in a different way
* core/forkid: remove unused function checksum
* les: remove unused type proofsData
* cmd/utils: remove unused functions prefixedNames, prefixFor
* crypto/bn256: run goimports
* p2p/nat: fix goimports lint issue
* cmd/clef: avoid using unkeyed struct fields
* les: cancel context in testRequest
* rlp: delete unreachable code
* core: gofmt
* internal/build: simplify DownloadFile for Go 1.11 compatibility
* build: remove go test --short flag
* .travis.yml: disable build cache
* whisper/whisperv6: fix ineffectual assignment in TestWhisperIdentityManagement
* .golangci.yml: enable goconst and ineffassign linters
* build: print message when there are no lint issues
* internal/build: refactor download a bit
This PR adds enode.LocalNode and integrates it into the p2p
subsystem. This new object is the keeper of the local node
record. For now, a new version of the record is produced every
time the client restarts. We'll make it smarter to avoid that in
the future.
There are a couple of other changes in this commit: discovery now
waits for all of its goroutines at shutdown and the p2p server
now closes the node database after discovery has shut down. This
fixes a leveldb crash in tests. p2p server startup is faster
because it doesn't need to wait for the external IP query
anymore.
Port mapper auto discovery used to run immediately after parsing the
--nat flag, giving it a slight performance boost. But this is becoming
inconvenient because we create node.Node for all geth operations
including account management and bare chain interaction. Delay
autodiscovery until the first use instead, which avoids any network
interaction until the node is actually started.
People stil get confused about the messages. This commit changes
the levels so that the only thing printed at the default level (info)
is a successful mapping.
The test listens for multicast UDP packets on the default interface
because I couldn't get it to work reliably on loopback without massive
changes to goupnp. This means that the test might fail when there is a
UPnP-enabled router attached on that interface. I checked that locally
by looping the test and it passes reliably because the local SSDP server
always responds faster.
Concurrent calls to Interface methods on autodisc could return a "not
discovered" error if the discovery did not finish before the call.
autodisc.wait expected the done channel to carry the found Interface
but it was closed instead.
The fix is to use sync.Once for now, which is easier to get right.
And there is a test. Finally.
This will have to change again when we introduce re-discovery.
I have verified that UPnP and NAT-PMP work against an older version of
the MiniUPnP daemon running on pfSense. This code is kind of hard to
test automatically.
