hkparker/go-i2p

A pure Go implementation of the I2P router

go-i2p's Issues

Implement tunnel creation data structures

specification here

Implement the I2CP data structres

specifications here, refer to lib/common/ for examples

Reviving go-i2p

With this project being dormant and the I2P crypto migration all-but complete in the Java I2P and C++ i2pd implementations, I'd like to visit the idea of reviving the go-i2p project and turning it into an I2P router which is useful for client applications.

Is this something that any of the existing/former participants have any interest in being part of? If not, would I be spoiling anyone's secret plans if I were to fork the project and start working on it independently again? I do intend to start using go modules and move it to an organization's namespace(https://github.com/go-i2p/go-i2p) in order to make use of the Github organization tooling and avoid having to rename the module in the future.

crypto package cannot be tested with race flag

$ go test ./... -race
?       github.com/hkparker/go-i2p  [no test files]
==2648==ERROR: ThreadSanitizer failed to allocate 0x2720000 (41025536) bytes at address 1fc6dba31c080 (errno: 12)
unexpected fault address 0x0
fatal error: fault
[signal 0x7 code=0x80 addr=0x0 pc=0x7f1b6e332435]

goroutine 1 [running, locked to thread]:
runtime.throw(0x0, 0x7f1b6df32308)
    /usr/lib/go/src/runtime/panic.go:547 +0x90 fp=0x7ffee7a3cfb0 sp=0x7ffee7a3cf98

goroutine 17 [syscall, locked to thread]:
runtime.goexit()
    /usr/lib/go/src/runtime/asm_amd64.s:1998 +0x1
FAIL    github.com/hkparker/go-i2p/lib/common   0.007s
?       github.com/hkparker/go-i2p/lib/common/base32    [no test files]
?       github.com/hkparker/go-i2p/lib/common/base64    [no test files]
?       github.com/hkparker/go-i2p/lib/config   [no test files]
==2521==ERROR: ThreadSanitizer failed to allocate 0x26f8000 (40861696) bytes at address 1ffafa05c4080 (errno: 12)
unexpected fault address 0x0
fatal error: fault
[signal 0x7 code=0x80 addr=0x0 pc=0x7febe7de24e5]

goroutine 1 [running, locked to thread]:
runtime.throw(0x0, 0x7febe7c80458)
    /usr/lib/go/src/runtime/panic.go:547 +0x90 fp=0x7ffce1d62dc0 sp=0x7ffce1d62da8

goroutine 17 [syscall, locked to thread]:
runtime.goexit()
    /usr/lib/go/src/runtime/asm_amd64.s:1998 +0x1
FAIL    github.com/hkparker/go-i2p/lib/crypto   0.006s
?       github.com/hkparker/go-i2p/lib/i2np [no test files]
?       github.com/hkparker/go-i2p/lib/netdb    [no test files]
?       github.com/hkparker/go-i2p/lib/router   [no test files]
?       github.com/hkparker/go-i2p/lib/transport    [no test files]
?       github.com/hkparker/go-i2p/lib/transport/ssu    [no test files]
?       github.com/hkparker/go-i2p/lib/tunnel   [no test files]

implement i2np data structures

https://geti2p.net/en/docs/protocol/i2np
https://geti2p.net/spec/i2np

(i will take a wack at this today)

Flaky test TestDSA

First time I've seen a failure since we fixed the first round of these:

?       github.com/hkparker/go-i2p      [no test files]
?       github.com/hkparker/go-i2p/lib/bootstrap        [no test files]
ok      github.com/hkparker/go-i2p/lib/common   0.005s  coverage: 79.0% of statements
?       github.com/hkparker/go-i2p/lib/common/base32    [no test files]
?       github.com/hkparker/go-i2p/lib/common/base64    [no test files]
?       github.com/hkparker/go-i2p/lib/config   [no test files]
--- FAIL: TestDSA (0.00s)
    dsa_test.go:36: sig="O[6R%\xf9kD\xe9\x1fʖhM\x06ó\xb4\x98\x90\u007f2S\xbf\xae\x9d\x8a\x90\xd0\xf1\xdc(\xf11Fݵ0\xd9p"
    dsa_test.go:47: failed: invalid signature
FAIL
coverage: 55.9% of statements
FAIL    github.com/hkparker/go-i2p/lib/crypto   0.037s
?       github.com/hkparker/go-i2p/lib/i2np     [no test files]
?       github.com/hkparker/go-i2p/lib/netdb    [no test files]
?       github.com/hkparker/go-i2p/lib/router   [no test files]
?       github.com/hkparker/go-i2p/lib/transport        [no test files]
?       github.com/hkparker/go-i2p/lib/transport/ssu    [no test files]
ok      github.com/hkparker/go-i2p/lib/tunnel   0.003s  coverage: 2.0% of statements

Flaky test in crypto package: TestElg

Every so often the TestElg test fails

$ go test ./... -cover
?       github.com/hkparker/go-i2p  [no test files]
ok      github.com/hkparker/go-i2p/lib/common   0.007s  coverage: 80.1% of statements
?       github.com/hkparker/go-i2p/lib/common/base32    [no test files]
?       github.com/hkparker/go-i2p/lib/common/base64    [no test files]
?       github.com/hkparker/go-i2p/lib/config   [no test files]
--- FAIL: TestElg (0.01s)
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
    panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x8 pc=0x7f1d7c002185]

goroutine 7 [running]:
panic(0x7f1d7c112ca0, 0xc82000a180)
    /usr/lib/go/src/runtime/panic.go:481 +0x3e6
testing.tRunner.func1(0xc8200226c0)
    /usr/lib/go/src/testing/testing.go:467 +0x192
panic(0x7f1d7c112ca0, 0xc82000a180)
    /usr/lib/go/src/runtime/panic.go:443 +0x4e9
github.com/hkparker/go-i2p/lib/crypto.createElgamalEncryption(0x0, 0x7f1d7c3794f0, 0xc820016720, 0x0, 0x0, 0x0)
    github.com/hkparker/go-i2p/lib/crypto/_test/_obj_test/elg.go:198 +0x175
github.com/hkparker/go-i2p/lib/crypto.TestElg(0xc8200226c0)
    /home/hayden/Development/Go/src/github.com/hkparker/go-i2p/lib/crypto/elg_test.go:19 +0x197
testing.tRunner(0xc8200226c0, 0x7f1d7c420770)
    /usr/lib/go/src/testing/testing.go:473 +0x98
created by testing.RunTests
    /usr/lib/go/src/testing/testing.go:582 +0x892
FAIL    github.com/hkparker/go-i2p/lib/crypto   0.018s
?       github.com/hkparker/go-i2p/lib/i2np [no test files]
?       github.com/hkparker/go-i2p/lib/netdb    [no test files]
?       github.com/hkparker/go-i2p/lib/router   [no test files]
?       github.com/hkparker/go-i2p/lib/transport    [no test files]
?       github.com/hkparker/go-i2p/lib/transport/ssu    [no test files]
?       github.com/hkparker/go-i2p/lib/tunnel   [no test files]

Flaky test in crypto package: TestDSA

Every so often the TestDSA test fails

?   github.com/hkparker/go-i2p  [no test files]
ok      github.com/hkparker/go-i2p/lib/common   0.007s  coverage: 77.8% of statements
?       github.com/hkparker/go-i2p/lib/common/base32    [no test files]
?       github.com/hkparker/go-i2p/lib/common/base64    [no test files]
?       github.com/hkparker/go-i2p/lib/config   [no test files]
--- FAIL: TestDSA (0.00s)
        dsa_test.go:32: sig="R\x06D\x97\x0fu#\xd1Ҧ\xf3\x11G\x0e\x0e^\xde\ue445\x91\xaf+7\u007f\xbf\xaeC\x1eͩ\x9ctsS\x90\x9b\x0fY\x00"
        dsa_test.go:43: failed: invalid signature
FAIL
coverage: 55.0% of statements
FAIL    github.com/hkparker/go-i2p/lib/crypto   0.065s
?       github.com/hkparker/go-i2p/lib/i2np     [no test files]
?       github.com/hkparker/go-i2p/lib/netdb    [no test files]
?       github.com/hkparker/go-i2p/lib/router   [no test files]
?       github.com/hkparker/go-i2p/lib/transport        [no test files]
?       github.com/hkparker/go-i2p/lib/transport/ssu    [no test files]
?       github.com/hkparker/go-i2p/lib/tunnel   [no test files]

Implement the SSU protocol

documentation

Implement the datagram specification

documentation

Implement tunnel message data structures

specification here