pax_global_header 0000666 0000000 0000000 00000000064 14735236651 0014526 g ustar 00root root 0000000 0000000 52 comment=ad0771221693e9eb323620c532128cf1a3b68f6c
ligolo-ng-0.7.5/ 0000775 0000000 0000000 00000000000 14735236651 0013426 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/.github/ 0000775 0000000 0000000 00000000000 14735236651 0014766 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/.github/FUNDING.yml 0000664 0000000 0000000 00000000103 14735236651 0016575 0 ustar 00root root 0000000 0000000 # These are supported funding model platforms
github: [nicocha30]
ligolo-ng-0.7.5/.github/ISSUE_TEMPLATE/ 0000775 0000000 0000000 00000000000 14735236651 0017151 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/.github/ISSUE_TEMPLATE/bug_report.md 0000664 0000000 0000000 00000001473 14735236651 0021650 0 ustar 00root root 0000000 0000000 ---
name: Bug report
about: Create a report to help us improve
title: "[BUG]"
labels: ''
assignees: ''
---
**Describe the bug**
A clear and concise description of what the bug is.
**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error
**Expected behavior**
A clear and concise description of what you expected to happen.
**Screenshots**
If applicable, add screenshots to help explain your problem.
**Proxy information:**
- OS: [e.g. Linux (Fedora 40)]
- Architecture [e.g. amd64,arm64]
- Version [e.g. Ligolo-ng v0.6.1]
**Agent information:**
- OS: [e.g. Linux (Fedora 40)]
- Architecture [e.g. amd64,arm64]
- Version [e.g. Ligolo-ng v0.6.1]
**Additional context**
Add any other context about the problem here (network information, routes, ...).
ligolo-ng-0.7.5/.github/ISSUE_TEMPLATE/feature_request.md 0000664 0000000 0000000 00000001123 14735236651 0022673 0 ustar 00root root 0000000 0000000 ---
name: Feature request
about: Suggest an idea for this project
title: ''
labels: ''
assignees: ''
---
**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
**Describe the solution you'd like**
A clear and concise description of what you want to happen.
**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.
**Additional context**
Add any other context or screenshots about the feature request here.
ligolo-ng-0.7.5/.github/workflows/ 0000775 0000000 0000000 00000000000 14735236651 0017023 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/.github/workflows/release.yml 0000664 0000000 0000000 00000001276 14735236651 0021174 0 ustar 00root root 0000000 0000000 name: goreleaser
on:
push:
# run only against tags
tags:
- "*"
permissions:
contents: write
jobs:
goreleaser:
runs-on: ubuntu-latest
steps:
-
name: Checkout
uses: actions/checkout@v3
with:
fetch-depth: 0
-
name: Set up Go
uses: actions/setup-go@v4
with:
go-version: '1.20'
-
name: Run GoReleaser
uses: goreleaser/goreleaser-action@v4
with:
# either 'goreleaser' (default) or 'goreleaser-pro'
distribution: goreleaser
version: latest
args: release --clean
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
ligolo-ng-0.7.5/.github/workflows/sponsors.yaml 0000664 0000000 0000000 00000001276 14735236651 0021603 0 ustar 00root root 0000000 0000000 name: Generate Sponsors README
on:
workflow_dispatch:
permissions:
contents: write
jobs:
deploy:
runs-on: ubuntu-latest
steps:
- name: Checkout 🛎️
uses: actions/checkout@v2
- name: Generate Sponsors 💖
uses: JamesIves/github-sponsors-readme-action@v1
with:
template: '
'
token: ${{ secrets.PAT }}
file: 'README.md'
- name: Deploy to GitHub Pages 🚀
uses: JamesIves/github-pages-deploy-action@v4
with:
branch: master
folder: '.'
ligolo-ng-0.7.5/.gitignore 0000664 0000000 0000000 00000000076 14735236651 0015421 0 ustar 00root root 0000000 0000000 .idea/*
setuptun.sh
dist/
ligolo-ng.history
ligolo-selfcerts/
ligolo-ng-0.7.5/.goreleaser.yaml 0000664 0000000 0000000 00000002116 14735236651 0016520 0 ustar 00root root 0000000 0000000 project_name: ligolo-ng
builds:
- main: ./cmd/agent
id: "agent"
binary: agent
env: [CGO_ENABLED=0]
goos:
- linux
- darwin
- windows
- freebsd
- openbsd
goarch:
- amd64
- arm
- arm64
goarm:
- 6
- 7
- main: ./cmd/proxy
id: "proxy"
binary: proxy
env: [CGO_ENABLED=0]
goos:
- linux
- windows
- darwin
- freebsd
- openbsd
goarch:
- amd64
- arm64
goarm:
- 6
- 7
archives:
-
id: "proxy"
builds: ['proxy']
name_template: "{{ .ProjectName }}_{{ .Binary }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}{{ if .Arm }}v{{ .Arm }}{{ end }}{{ if .Mips }}_{{ .Mips }}{{ end }}"
format_overrides:
- goos: windows
format: zip
-
id: "agent"
builds: ['agent']
name_template: "{{ .ProjectName }}_{{ .Binary }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}{{ if .Arm }}v{{ .Arm }}{{ end }}{{ if .Mips }}_{{ .Mips }}{{ end }}"
format_overrides:
- goos: windows
format: zip
release:
github:
disable: false
ligolo-ng-0.7.5/LICENSE 0000664 0000000 0000000 00000104515 14735236651 0014441 0 ustar 00root root 0000000 0000000 GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
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for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Use with the GNU Affero General Public License.
Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU Affero General Public License into a single
combined work, and to convey the resulting work. The terms of this
License will continue to apply to the part which is the covered work,
but the special requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will apply to the
combination as such.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the
Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
GNU General Public License, you may choose any version ever published
by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
Copyright (C)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
Copyright (C)
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
.
ligolo-ng-0.7.5/Makefile 0000664 0000000 0000000 00000004245 14735236651 0015073 0 ustar 00root root 0000000 0000000 export GO111MODULE=on
VERSION=$(shell date +"%Y.%m.%d")
BUILD=$(shell git rev-parse HEAD)
BASEDIR=./dist
LDFLAGS=-ldflags "-s -w -X main.build=${BUILD} -buildid=${BUILD}"
GCFLAGS=-gcflags=all=-trimpath=$(shell echo ${HOME})
ASMFLAGS=-asmflags=all=-trimpath=$(shell echo ${HOME})
GOFILES=`go list -buildvcs=false ./...`
GOFILESNOTEST=`go list -buildvcs=false ./... | grep -v test`
# Make Directory to store executables
$(shell mkdir -p ${BASEDIR})
# goreleaser build --config .goreleaser.yml --rm-dist --skip-validate
all: linux windows
@chmod +x dist/*
mac: lint
@env CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -trimpath ${LDFLAGS} ${GCFLAGS} ${ASMFLAGS} -o ${BASEDIR}/ligolo-ng-proxy-darwin_amd64 cmd/proxy/main.go
@env CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -trimpath ${LDFLAGS} ${GCFLAGS} ${ASMFLAGS} -o ${BASEDIR}/ligolo-ng-agent-darwin_amd64 cmd/agent/main.go
linux: lint
@env CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -trimpath ${LDFLAGS} ${GCFLAGS} ${ASMFLAGS} -o ${BASEDIR}/ligolo-ng-proxy-linux_amd64 cmd/proxy/main.go
@env CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -trimpath ${LDFLAGS} ${GCFLAGS} ${ASMFLAGS} -o ${BASEDIR}/ligolo-ng-agent-linux_amd64 cmd/agent/main.go
windows: lint
@env CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -trimpath ${LDFLAGS} ${GCFLAGS} ${ASMFLAGS} -o ${BASEDIR}/ligolo-ng-proxy-windows_amd64.exe cmd/proxy/main.go
@env CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -trimpath ${LDFLAGS} ${GCFLAGS} ${ASMFLAGS} -o ${BASEDIR}/ligolo-ng-agent-windows_amd64.exe cmd/agent/main.go
tidy:
@go mod tidy
update: tidy
@go get -v -d ./...
@go get -u all
dep: ## Get the dependencies
@go install github.com/goreleaser/goreleaser
@go install github.com/securego/gosec/v2/cmd/gosec@latest
lint: ## Lint the files
@env CGO_ENABLED=0 go fmt ${GOFILES}
@env CGO_ENABLED=0 go vet ${GOFILESNOTEST}
security:
@gosec -tests ./...
release:
@goreleaser release --config .github/goreleaser.yml
clean:
@rm -rf ${BASEDIR}
terminal_proxy:
go run cmd/proxy/main.go -selfcert
terminal_agent:
go run cmd/agent/main.go -connect localhost:11601 -ignore-cert
.PHONY: all linux windows tidy update dep lint security release clean terminal
ligolo-ng-0.7.5/README.md 0000664 0000000 0000000 00000013745 14735236651 0014717 0 ustar 00root root 0000000 0000000 # Ligolo-ng : Tunneling like a VPN
An advanced, yet simple, tunneling tool that uses TUN interfaces.
[](https://www.gnu.org/licenses/gpl-3.0)
[](https://goreportcard.com/report/github.com/nicocha30/ligolo-ng)
[](https://github.com/sponsors/nicocha30)
[📑 Ligolo-ng Documentation (Setup/Quickstart)](https://github.com/nicocha30/ligolo-ng/wiki)
You use Ligolo-ng for your penetration tests? Did it help you pass a certification? Please consider sponsoring the project so I can buy my team some drinks. ☕
[:heart: Sponsor nicocha30](https://github.com/sponsors/nicocha30)
We would like to thank the following people for their support in the development of Ligolo-ng.
## Table of Contents
- [Introduction](#introduction)
- [Features](#features)
- [Demo](#demo)
- [How is this different from Ligolo/Chisel/Meterpreter... ?](#how-is-this-different-from-ligolochiselmeterpreter-)
- [How to use - documentation - tutorial](#how-to-use---documentation---tutorial)
- [Does it require Administrator/root access ?](#does-it-require-administratorroot-access-)
- [Supported protocols/packets](#supported-protocolspackets)
- [Performance](#performance)
- [Caveats](#caveats)
- [Todo](#todo)
- [Credits](#credits)
## Introduction
**Ligolo-ng** is a *simple*, *lightweight* and *fast* tool that allows pentesters to establish
tunnels from a reverse TCP/TLS connection using a **tun interface** (without the need of SOCKS).
## Features
- **Tun interface** (No more SOCKS/Proxychains!)
- Simple UI with *agent* selection and *network information*
- Easy to use and setup
- Automatic certificate configuration with Let's Encrypt
- Performant (Multiplexing)
- Does not require privileges on the *agent*
- Socket listening/binding on the *agent*
- Multiple platforms supported for the *agent*
- Can handle multiple tunnels
- Reverse/Bind Connection
- Automatic tunnel/listeners recovery (in case of network issues)
- Websocket support
## Demo
[Ligolo-ng-demo.webm](https://github.com/nicocha30/ligolo-ng/assets/31402213/3070bb7c-0b0d-4c77-9181-cff74fb2f0ba)
## How is this different from Ligolo/Chisel/Meterpreter... ?
Instead of using a SOCKS proxy or TCP/UDP forwarders, **Ligolo-ng** creates a userland network stack using [Gvisor](https://gvisor.dev/).
When running the *relay/proxy* server, a **tun** interface is used, packets sent to this interface are
translated, and then transmitted to the *agent* remote network.
As an example, for a TCP connection:
- SYN are translated to connect() on remote
- SYN-ACK is sent back if connect() succeed
- RST is sent if ECONNRESET, ECONNABORTED or ECONNREFUSED syscall are returned after connect
- Nothing is sent if timeout
This allows running tools like *nmap* without the use of *proxychains* (simpler and faster).
## How to use - documentation - tutorial
You will find the documentation for Ligolo-ng, as well as the steps to follow to get it up and running on the [Ligolo-ng Wiki](https://github.com/nicocha30/ligolo-ng/wiki)
## Does it require Administrator/root access ?
On the *agent* side, no! Everything can be performed without administrative access.
However, on your *relay/proxy* server, you need to be able to create a *tun* interface.
## Supported protocols/packets
* TCP
* UDP
* ICMP (echo requests)
## Performance
You can easily hit more than 100 Mbits/sec. Here is a test using `iperf` from a 200Mbits/s server to a 200Mbits/s connection.
```shell
$ iperf3 -c 10.10.0.1 -p 24483
Connecting to host 10.10.0.1, port 24483
[ 5] local 10.10.0.224 port 50654 connected to 10.10.0.1 port 24483
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 12.5 MBytes 105 Mbits/sec 0 164 KBytes
[ 5] 1.00-2.00 sec 12.7 MBytes 107 Mbits/sec 0 263 KBytes
[ 5] 2.00-3.00 sec 12.4 MBytes 104 Mbits/sec 0 263 KBytes
[ 5] 3.00-4.00 sec 12.7 MBytes 106 Mbits/sec 0 263 KBytes
[ 5] 4.00-5.00 sec 13.1 MBytes 110 Mbits/sec 2 134 KBytes
[ 5] 5.00-6.00 sec 13.4 MBytes 113 Mbits/sec 0 147 KBytes
[ 5] 6.00-7.00 sec 12.6 MBytes 105 Mbits/sec 0 158 KBytes
[ 5] 7.00-8.00 sec 12.1 MBytes 101 Mbits/sec 0 173 KBytes
[ 5] 8.00-9.00 sec 12.7 MBytes 106 Mbits/sec 0 182 KBytes
[ 5] 9.00-10.00 sec 12.6 MBytes 106 Mbits/sec 0 188 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 127 MBytes 106 Mbits/sec 2 sender
[ 5] 0.00-10.08 sec 125 MBytes 104 Mbits/sec receiver
```
## Caveats
Because the *agent* is running without privileges, it's not possible to forward raw packets.
When you perform a NMAP SYN-SCAN, a TCP connect() is performed on the agent.
When using *nmap*, you should use `--unprivileged` or `-PE` to avoid false positives.
## Todo
- Implement other ICMP error messages (this will speed up UDP scans) ;
- Do not *RST* when receiving an *ACK* from an invalid TCP connection (nmap will report the host as up) ;
- Add mTLS support.
## Credits
- Nicolas Chatelain
ligolo-ng-0.7.5/SECURITY.md 0000664 0000000 0000000 00000000404 14735236651 0015215 0 ustar 00root root 0000000 0000000 # Security Policy
## Reporting a Vulnerability
You think you've discovered a security problem on Ligolo-ng? Please contact me at nicolas - at - chatelain.me.
If the problem is serious, and you prefer to use PGP, don't hesitate to ask for my key beforehand.
ligolo-ng-0.7.5/cmd/ 0000775 0000000 0000000 00000000000 14735236651 0014171 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/cmd/agent/ 0000775 0000000 0000000 00000000000 14735236651 0015267 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/cmd/agent/main.go 0000664 0000000 0000000 00000016250 14735236651 0016546 0 ustar 00root root 0000000 0000000 package main
import (
"bytes"
"context"
"crypto/sha256"
"crypto/tls"
"crypto/x509"
"encoding/hex"
"flag"
"fmt"
"net"
"net/http"
"net/url"
"os"
"strings"
"time"
"github.com/hashicorp/yamux"
"github.com/nicocha30/ligolo-ng/pkg/agent"
"github.com/nicocha30/ligolo-ng/pkg/utils/selfcert"
"github.com/sirupsen/logrus"
goproxy "golang.org/x/net/proxy"
"nhooyr.io/websocket"
)
var (
version = "dev"
commit = "none"
date = "unknown"
)
func main() {
var tlsConfig tls.Config
var ignoreCertificate = flag.Bool("ignore-cert", false, "ignore TLS certificate validation (dangerous), only for debug purposes")
var acceptFingerprint = flag.String("accept-fingerprint", "", "accept certificates matching the following SHA256 fingerprint (hex format)")
var verbose = flag.Bool("v", false, "enable verbose mode")
var retry = flag.Bool("retry", false, "auto-retry on error")
var socksProxy = flag.String("proxy", "", "proxy URL address (http://admin:secret@127.0.0.1:8080)"+
" or socks://admin:secret@127.0.0.1:8080")
var serverAddr = flag.String("connect", "", "connect to proxy (domain:port)")
var bindAddr = flag.String("bind", "", "bind to ip:port")
var userAgent = flag.String("ua", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "+
"AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36", "HTTP User-Agent")
var versionFlag = flag.Bool("version", false, "show the current version")
flag.Usage = func() {
fmt.Printf("Ligolo-ng %s / %s / %s\n", version, commit, date)
fmt.Println("Made in France with love by @Nicocha30!")
fmt.Println("https://github.com/nicocha30/ligolo-ng")
fmt.Printf("\nUsage of %s:\n", os.Args[0])
flag.PrintDefaults()
}
flag.Parse()
if *versionFlag {
fmt.Printf("Ligolo-ng %s / %s / %s\n", version, commit, date)
return
}
logrus.SetReportCaller(*verbose)
if *verbose {
logrus.SetLevel(logrus.DebugLevel)
}
if *bindAddr != "" {
selfcrt := selfcert.NewSelfCert(nil)
crt, err := selfcrt.GetCertificate(*bindAddr)
if err != nil {
logrus.Fatal(err)
}
logrus.Warnf("TLS Certificate fingerprint is: %X\n", sha256.Sum256(crt.Certificate[0]))
tlsConfig.GetCertificate = func(info *tls.ClientHelloInfo) (*tls.Certificate, error) {
return crt, nil
}
lis, err := net.Listen("tcp", *bindAddr)
if err != nil {
logrus.Fatal(err)
}
logrus.Infof("Listening on %s...", *bindAddr)
for {
conn, err := lis.Accept()
if err != nil {
logrus.Error(err)
continue
}
logrus.Infof("Got connection from: %s\n", conn.RemoteAddr())
tlsConn := tls.Server(conn, &tlsConfig)
if err := connect(tlsConn); err != nil {
logrus.Error(err)
}
}
}
if *serverAddr == "" {
logrus.Fatal("please, specify the target host user -connect host:port")
}
serverUrl, err := url.Parse(*serverAddr)
if err == nil && serverUrl != nil && serverUrl.Scheme == "https" {
tlsConfig.ServerName = serverUrl.Hostname()
} else {
//direct connection. try to parse as host:port
host, _, err := net.SplitHostPort(*serverAddr)
if err != nil {
logrus.Fatal("Invalid connect address, please use https://host:port for websocket or host:port for tcp")
}
tlsConfig.ServerName = host
}
if *ignoreCertificate {
logrus.Warn("warning, certificate validation disabled")
tlsConfig.InsecureSkipVerify = true
}
var conn net.Conn
for {
var err error
if serverUrl != nil && serverUrl.Scheme == "https" {
*serverAddr = strings.Replace(*serverAddr, "https://", "wss://", 1)
//websocket
err = wsconnect(&tlsConfig, *serverAddr, *socksProxy, *userAgent)
} else {
if *socksProxy != "" {
//suppose that scheme is socks:// or socks5://
var proxyUrl *url.URL
proxyUrl, err = url.Parse(*socksProxy)
if err != nil {
logrus.Fatal("invalid proxy address, please use socks5://host:port")
}
if proxyUrl.Scheme == "http" {
logrus.Fatal("Can't use http-proxy with direct (tcp) connection. Only with websocket")
}
if proxyUrl.Scheme == "socks" || proxyUrl.Scheme == "socks5" {
pass, _ := proxyUrl.User.Password()
conn, err = sockDial(*serverAddr, proxyUrl.Host, proxyUrl.User.Username(), pass)
} else {
logrus.Fatal("invalid socks5 address, please use socks://host:port")
}
} else {
conn, err = net.Dial("tcp", *serverAddr)
}
if err == nil {
if *acceptFingerprint != "" {
tlsConfig.InsecureSkipVerify = true
tlsConfig.VerifyPeerCertificate = func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
crtFingerprint := sha256.Sum256(rawCerts[0])
crtMatch, err := hex.DecodeString(*acceptFingerprint)
if err != nil {
return fmt.Errorf("invalid cert fingerprint: %v\n", err)
}
if bytes.Compare(crtMatch, crtFingerprint[:]) != 0 {
return fmt.Errorf("certificate does not match fingerprint: %X != %X", crtFingerprint, crtMatch)
}
return nil
}
}
tlsConn := tls.Client(conn, &tlsConfig)
err = connect(tlsConn)
}
}
logrus.Errorf("Connection error: %v", err)
if *retry {
logrus.Info("Retrying in 5 seconds.")
time.Sleep(5 * time.Second)
} else {
logrus.Fatal(err)
}
}
}
func sockDial(serverAddr string, socksProxy string, socksUser string, socksPass string) (net.Conn, error) {
proxyDialer, err := goproxy.SOCKS5("tcp", socksProxy, &goproxy.Auth{
User: socksUser,
Password: socksPass,
}, goproxy.Direct)
if err != nil {
logrus.Fatalf("socks5 error: %v", err)
}
return proxyDialer.Dial("tcp", serverAddr)
}
func connect(conn net.Conn) error {
yamuxConn, err := yamux.Server(conn, yamux.DefaultConfig())
if err != nil {
return err
}
logrus.WithFields(logrus.Fields{"addr": conn.RemoteAddr()}).Info("Connection established")
for {
conn, err := yamuxConn.Accept()
if err != nil {
return err
}
go agent.HandleConn(conn)
}
}
func wsconnect(config *tls.Config, wsaddr string, proxystr string, useragent string) error {
//timeout for websocket library connection - 20 seconds
ctx, cancel := context.WithTimeout(context.Background(), time.Second*20)
defer cancel()
//in case of websocket proxy can be http with login:pass
//Ex: proxystr = "http://admin:secret@127.0.0.1:8080"
proxyUrl, err := url.Parse(proxystr)
if err != nil || proxystr == "" {
proxyUrl = nil
}
httpTransport := &http.Transport{}
config.MinVersion = tls.VersionTLS10
httpTransport = &http.Transport{
MaxIdleConns: http.DefaultMaxIdleConnsPerHost,
TLSClientConfig: config,
Proxy: http.ProxyURL(proxyUrl),
}
httpClient := &http.Client{Transport: httpTransport}
httpheader := &http.Header{}
httpheader.Add("User-Agent", useragent)
wsConn, _, err := websocket.Dial(ctx, wsaddr, &websocket.DialOptions{HTTPClient: httpClient, HTTPHeader: *httpheader})
if err != nil {
return err
}
//timeout for netconn derived from websocket connection - it must be very big
netctx, cancel := context.WithTimeout(context.Background(), time.Hour*999999)
netConn := websocket.NetConn(netctx, wsConn, websocket.MessageBinary)
defer cancel()
yamuxConn, err := yamux.Server(netConn, yamux.DefaultConfig())
if err != nil {
return err
}
logrus.Info("Websocket connection established")
for {
conn, err := yamuxConn.Accept()
if err != nil {
return err
}
go agent.HandleConn(conn)
}
}
ligolo-ng-0.7.5/cmd/proxy/ 0000775 0000000 0000000 00000000000 14735236651 0015352 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/cmd/proxy/app/ 0000775 0000000 0000000 00000000000 14735236651 0016132 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/cmd/proxy/app/app.go 0000664 0000000 0000000 00000035546 14735236651 0017256 0 ustar 00root root 0000000 0000000 package app
import (
"context"
"crypto/sha256"
"crypto/tls"
"errors"
"fmt"
"net"
"strconv"
"strings"
"sync"
"github.com/AlecAivazis/survey/v2"
"github.com/desertbit/grumble"
"github.com/hashicorp/yamux"
"github.com/jedib0t/go-pretty/v6/table"
"github.com/jedib0t/go-pretty/v6/text"
"github.com/nicocha30/ligolo-ng/pkg/controller"
"github.com/nicocha30/ligolo-ng/pkg/proxy"
"github.com/nicocha30/ligolo-ng/pkg/proxy/netstack"
"github.com/sirupsen/logrus"
)
var AgentList map[int]*controller.LigoloAgent
var AgentListMutex sync.Mutex
var ProxyController *controller.Controller
// CurrentAgentID points to the selected agent in the UI (when running session)
var CurrentAgentID int
// Store AgentIDs
var AgentCounter int
var (
ErrInvalidAgent = errors.New("please, select an agent using the session command")
ErrAlreadyRunning = errors.New("already running")
ErrNotRunning = errors.New("no tunnel started")
)
func RegisterAgent(agent *controller.LigoloAgent) error {
AgentListMutex.Lock()
defer AgentListMutex.Unlock()
for _, registeredAgents := range AgentList {
if agent.SessionID == registeredAgents.SessionID {
logrus.Infof("Recovered an agent: %s", registeredAgents.Name)
registeredAgents.Session = agent.Session
if registeredAgents.Running {
go StartTunnel(registeredAgents, registeredAgents.Interface)
}
for lid, listener := range registeredAgents.Listeners {
logrus.Info(fmt.Sprintf("Restarting listener: %s", listener.String()))
if err := listener.ResetMultiplexer(registeredAgents.Session); err != nil {
logrus.Errorf("Failed to reset yamux: %v", err)
}
if err := listener.Stop(); err != nil {
logrus.Error(err)
}
lis, err := proxy.NewListener(registeredAgents.Session, listener.ListenerAddr(), listener.Network(), listener.RedirectAddr())
if err != nil {
logrus.Error(err)
}
registeredAgents.Listeners[lid] = &lis
go func() {
err := lis.StartRelay()
if err != nil {
logrus.WithFields(logrus.Fields{"listener": lis.String(), "agent": agent.Name, "id": agent.SessionID}).Error("Listener relay failed with error: ", err)
return
}
logrus.WithFields(logrus.Fields{"listener": lis.String(), "agent": agent.Name, "id": agent.SessionID}).Warning("Listener ended without error.")
return
}()
}
return nil
}
}
AgentCounter++
AgentList[AgentCounter] = agent
return nil
}
func StartTunnel(agent *controller.LigoloAgent, tunName string) {
logrus.Infof("Starting tunnel to %s (%s)", agent.Name, agent.SessionID)
ligoloStack, err := proxy.NewLigoloTunnel(netstack.StackSettings{
TunName: tunName,
MaxInflight: 4096,
})
if err != nil {
logrus.Error("Unable to create tunnel, err:", err)
return
}
ifName, err := ligoloStack.GetStack().Interface().Name()
if err != nil {
logrus.Warn("unable to get interface name, err:", err)
ifName = tunName
}
agent.Interface = ifName
agent.Running = true
ctx, cancelTunnel := context.WithCancel(context.Background())
go ligoloStack.HandleSession(agent.Session, ctx)
for {
select {
case <-agent.CloseChan: // User stopped
logrus.Infof("Closing tunnel to %s (%s)...", agent.Name, agent.SessionID)
cancelTunnel()
return
case <-agent.Session.CloseChan(): // Agent closed
logrus.Warnf("Lost tunnel connection with agent %s (%s)!", agent.Name, agent.SessionID)
//agent.Running = false
//agent.Session = nil
if currentAgent, ok := AgentList[CurrentAgentID]; ok {
if currentAgent.SessionID == agent.SessionID {
App.SetDefaultPrompt()
agent.Session = nil
}
}
cancelTunnel()
return
}
}
}
func Run() {
// AgentList contains all the connected agents
AgentList = make(map[int]*controller.LigoloAgent)
App.AddCommand(&grumble.Command{
Name: "session",
Help: "Change the current relay agent",
Usage: "session",
Run: func(c *grumble.Context) error {
AgentListMutex.Lock()
sessionCount := 0
for _, agent := range AgentList {
if agent.Session != nil && !agent.Session.IsClosed() {
sessionCount += 1
}
}
if sessionCount == 0 {
AgentListMutex.Unlock()
return errors.New("no sessions available")
}
AgentListMutex.Unlock()
var session string
sessionSelector := &survey.Select{
Message: "Specify a session :",
Options: func() (out []string) {
AgentListMutex.Lock()
for id, agent := range AgentList {
if agent.Session != nil && !agent.Session.IsClosed() {
out = append(out, fmt.Sprintf("%d - %s", id, agent.String()))
}
}
AgentListMutex.Unlock()
return
}(),
}
err := survey.AskOne(sessionSelector, &session)
if err != nil {
return err
}
s := strings.Split(session, " ")
sessionID, err := strconv.Atoi(s[0])
if err != nil {
return err
}
CurrentAgentID = sessionID
c.App.SetPrompt(fmt.Sprintf("[Agent : %s] » ", AgentList[CurrentAgentID].Name))
return nil
},
})
App.AddCommand(&grumble.Command{
Name: "certificate_fingerprint",
Help: "Show the current selfcert fingerprint",
Usage: "certificate_fingerprint",
Run: func(c *grumble.Context) error {
selfcrt := ProxyController.SelfCert
if selfcrt == nil {
return errors.New("certificate is nil")
}
logrus.Printf("TLS Certificate fingerprint for %s is: %X\n", ProxyController.SelfcertDomain, sha256.Sum256(selfcrt.Certificate[0]))
return nil
},
})
App.AddCommand(&grumble.Command{
Name: "connect_agent",
Help: "Attempt to connect to a bind agent",
Usage: "connect_agent --ip [agentip]",
Flags: func(f *grumble.Flags) {
f.StringL("ip", "", "The agent ip:port")
f.BoolL("ignore-cert", false, "Ignore TLS certificate verification")
},
Run: func(c *grumble.Context) error {
tlsConfig := &tls.Config{}
tlsConfig.InsecureSkipVerify = true
remoteConn, err := tls.Dial("tcp", c.Flags.String("ip"), tlsConfig)
if err != nil {
return err
}
if !c.Flags.Bool("ignore-cert") {
cert := remoteConn.ConnectionState().PeerCertificates[0].Raw
shaSum := sha256.Sum256(cert)
confirmTLS := false
prompt := &survey.Confirm{
Message: fmt.Sprintf("TLS Certificate Fingerprint is: %X, connect?", shaSum),
}
survey.AskOne(prompt, &confirmTLS)
if !confirmTLS {
remoteConn.Close()
return errors.New("connection aborted (user did not validate TLS cert)")
}
}
yamuxConn, err := yamux.Client(remoteConn, nil)
if err != nil {
return err
}
agent, err := controller.NewAgent(yamuxConn)
if err != nil {
logrus.Errorf("could not register agent, error: %v", err)
return err
}
logrus.WithFields(logrus.Fields{"remote": remoteConn.RemoteAddr(), "name": agent.Name, "id": agent.SessionID}).Info("Agent connected.")
if err := RegisterAgent(agent); err != nil {
logrus.Errorf("could not register agent: %s", err.Error())
}
return nil
},
})
App.AddCommand(&grumble.Command{
Name: "tunnel_start",
Help: "Start relaying connection to the current agent",
Usage: "tunnel_start --tun ligolo",
HelpGroup: "Tunneling",
Aliases: []string{"start"},
Flags: func(f *grumble.Flags) {
f.StringL("tun", "ligolo", "the interface to run the proxy on")
},
Run: func(c *grumble.Context) error {
if _, ok := AgentList[CurrentAgentID]; !ok {
return ErrInvalidAgent
}
CurrentAgent := AgentList[CurrentAgentID]
if CurrentAgent.Session == nil {
return ErrInvalidAgent
}
if CurrentAgent.Running {
return ErrAlreadyRunning
}
for _, agent := range AgentList {
if agent.Running {
if agent.Interface == c.Flags.String("tun") {
return errors.New("a tunnel is already using this interface name. Please use a different name using the --tun option")
}
}
}
go StartTunnel(CurrentAgent, c.Flags.String("tun"))
return nil
},
})
App.AddCommand(&grumble.Command{Name: "tunnel_list",
Help: "List active tunnels",
Usage: "tunnel_list",
HelpGroup: "Tunneling",
Run: func(c *grumble.Context) error {
t := table.NewWriter()
t.SetStyle(table.StyleLight)
t.SetTitle("Active tunnels")
t.AppendHeader(table.Row{"#", "Agent", "Interface"})
AgentListMutex.Lock()
for id, agent := range AgentList {
if agent.Running {
t.AppendRow(table.Row{id, agent.Name, agent.Interface})
}
}
AgentListMutex.Unlock()
App.Println(t.Render())
return nil
},
})
App.AddCommand(&grumble.Command{Name: "tunnel_stop",
Help: "Stop the tunnel",
Usage: "stop",
HelpGroup: "Tunneling",
Aliases: []string{"stop"},
Flags: func(f *grumble.Flags) {
f.IntL("agent", -1, "The agent to stop")
},
Run: func(c *grumble.Context) error {
var selectedAgent int
if c.Flags.Int("agent") != -1 {
selectedAgent = c.Flags.Int("agent")
} else {
selectedAgent = CurrentAgentID
}
if _, ok := AgentList[selectedAgent]; !ok {
return ErrInvalidAgent
}
CurrentAgent := AgentList[selectedAgent]
if CurrentAgent.Session == nil || !CurrentAgent.Running {
return ErrNotRunning
}
CurrentAgent.CloseChan <- true
CurrentAgent.Running = false
return nil
},
})
App.AddCommand(&grumble.Command{
Name: "ifconfig",
Help: "Show agent interfaces",
Usage: "ifconfig",
Run: func(c *grumble.Context) error {
if _, ok := AgentList[CurrentAgentID]; !ok {
return ErrInvalidAgent
}
CurrentAgent := AgentList[CurrentAgentID]
// Note: Network information is not refreshed when calling this command
if CurrentAgent.Session == nil {
return ErrInvalidAgent
}
for n, ifaceInfo := range CurrentAgent.Network {
t := table.NewWriter()
t.SetStyle(table.StyleLight)
t.SetTitle(fmt.Sprintf("Interface %d", n))
t.AppendRow(table.Row{"Name", ifaceInfo.Name})
t.AppendRow(table.Row{"Hardware MAC", ifaceInfo.HardwareAddr})
t.AppendRow(table.Row{"MTU", ifaceInfo.MTU})
t.AppendRow(table.Row{"Flags", ifaceInfo.Flags})
for _, address := range ifaceInfo.Addresses {
if address != "" {
ip, _, err := net.ParseCIDR(address)
if err != nil {
continue
}
if ip.To4() != nil {
t.AppendRow(table.Row{"IPv4 Address", address})
} else {
t.AppendRow(table.Row{"IPv6 Address", address})
}
}
}
App.Println(t.Render())
}
return nil
},
})
App.AddCommand(&grumble.Command{
Name: "listener_list",
Help: "List currently running listeners",
Usage: "listener_list",
HelpGroup: "Listeners",
Run: func(c *grumble.Context) error {
t := table.NewWriter()
t.SetStyle(table.StyleLight)
t.SetTitle("Active listeners")
t.AppendHeader(table.Row{"#", "Agent", "Network", "Agent listener address", "Proxy redirect address", "Status"})
for _, agent := range AgentList {
for _, listener := range agent.Listeners {
status := text.Colors{text.FgGreen}.Sprintf("Online")
if agent.Session == nil || agent.Session.IsClosed() {
status = text.Colors{text.FgRed}.Sprintf("Offline")
}
t.AppendRow(table.Row{listener.ID, agent.String(), listener.Network(), listener.ListenerAddr(), listener.RedirectAddr(), status})
}
}
c.App.Println(t.Render())
return nil
},
})
App.AddCommand(&grumble.Command{
Name: "listener_stop",
Help: "Stop a listener",
Usage: "listener_stop",
HelpGroup: "Listeners",
Run: func(c *grumble.Context) error {
var session string
type LigoloListenerAgent struct {
listener *proxy.LigoloListener
agent *controller.LigoloAgent
}
listenerMap := make(map[int]LigoloListenerAgent)
listenerSelector := &survey.Select{
Message: "Specify the listener to stop:",
Options: func() (out []string) {
AgentListMutex.Lock()
i := 0
for _, agent := range AgentList {
for _, listener := range agent.Listeners {
status := text.Colors{text.FgGreen}.Sprintf("Online")
if agent.Session == nil || agent.Session.IsClosed() {
status = text.Colors{text.FgRed}.Sprintf("Offline")
}
out = append(out, fmt.Sprintf("%d - Agent: %s - Net: %s - Agent Listener: %s - Redirect: %s [%s]", i, agent.String(), listener.Network(), listener.ListenerAddr(), listener.RedirectAddr(), status))
listenerMap[i] = LigoloListenerAgent{listener: listener, agent: agent}
i++
}
}
AgentListMutex.Unlock()
return
}(),
}
err := survey.AskOne(listenerSelector, &session)
if err != nil {
return err
}
s := strings.Split(session, " ")
listenerId, err := strconv.Atoi(s[0])
if err != nil {
return err
}
if listener, ok := listenerMap[listenerId]; ok {
if err := listener.listener.Stop(); err != nil {
return err
}
listener.agent.DeleteListener(int(listener.listener.ID))
} else {
return errors.New("invalid listener id")
}
return nil
},
})
App.AddCommand(&grumble.Command{
Name: "listener_add",
Help: "Listen on the agent and redirect connections to the desired address",
Usage: "listener_add --addr [agent_listening_address:port] --to [local_listening_address:port] --tcp/--udp (--no-retry)",
HelpGroup: "Listeners",
Flags: func(f *grumble.Flags) {
f.BoolL("tcp", false, "Use TCP listener")
f.BoolL("udp", false, "Use UDP listener")
f.StringL("addr", "", "The agent listening address:port")
f.StringL("to", "", "Where to redirect connections")
},
Run: func(c *grumble.Context) error {
if _, ok := AgentList[CurrentAgentID]; !ok {
return ErrInvalidAgent
}
CurrentAgent := AgentList[CurrentAgentID]
if CurrentAgent.Session == nil {
return errors.New("please, select an agent using the session command")
}
var netProto string
if c.Flags.Bool("tcp") && c.Flags.Bool("udp") {
return errors.New("choose TCP or UDP, not both")
}
if c.Flags.Bool("tcp") {
netProto = "tcp"
}
if c.Flags.Bool("udp") {
netProto = "udp"
}
if netProto == "" {
netProto = "tcp" // Use TCP by default.
}
if c.Flags.String("to") == "" {
return errors.New("please, specify a valid redirect (to) IP address - expected format : ip:port")
}
// Check if specified IP is valid.
if _, _, err := net.SplitHostPort(c.Flags.String("to")); err != nil {
return err
}
if _, _, err := net.SplitHostPort(c.Flags.String("addr")); err != nil {
return err
}
proxyListener, err := CurrentAgent.AddListener(c.Flags.String("addr"), netProto, c.Flags.String("to"))
if err != nil {
return err
}
logrus.Infof("Listener %d created on remote agent!", proxyListener.ID)
go func() {
err := proxyListener.StartRelay()
if err != nil {
logrus.WithFields(logrus.Fields{"listener": proxyListener.String(), "agent": CurrentAgent.Name, "id": CurrentAgent.SessionID}).Error("Listener relay failed with error: ", err)
return
}
logrus.WithFields(logrus.Fields{"listener": proxyListener.String(), "agent": CurrentAgent.Name, "id": CurrentAgent.SessionID}).Warning("Listener ended without error.")
return
}()
return nil
},
})
}
ligolo-ng-0.7.5/cmd/proxy/app/cli.go 0000664 0000000 0000000 00000000541 14735236651 0017230 0 ustar 00root root 0000000 0000000 package app
import "github.com/desertbit/grumble"
// App is used to register the grumble
var App = grumble.New(&grumble.Config{
Name: "ligolo-ng",
Description: "Ligolo-ng - An advanced, yet simple tunneling tool",
HelpHeadlineUnderline: true,
HelpSubCommands: true,
HistoryFile: "ligolo-ng.history",
})
ligolo-ng-0.7.5/cmd/proxy/app/interfaces_linux.go 0000664 0000000 0000000 00000020574 14735236651 0022033 0 ustar 00root root 0000000 0000000 package app
import (
"errors"
"fmt"
"github.com/AlecAivazis/survey/v2"
"github.com/desertbit/grumble"
"github.com/jedib0t/go-pretty/v6/table"
"github.com/nicocha30/ligolo-ng/pkg/proxy/netstack/tun"
"github.com/nicocha30/ligolo-ng/pkg/utils/codenames"
"github.com/sirupsen/logrus"
"net"
"strings"
)
func init() {
App.AddCommand(&grumble.Command{
Name: "interface_list",
Aliases: []string{"iflist", "route_list"},
Help: "List available tun interfaces",
Usage: "interface_list",
HelpGroup: "Interfaces",
Run: func(c *grumble.Context) error {
t := table.NewWriter()
t.SetStyle(table.StyleLight)
t.SetTitle("Available tuntaps")
t.AppendHeader(table.Row{"#", "Tap Name", "Dst routes"})
tuntaps, err := tun.GetTunTaps()
if err != nil {
return err
}
for i, tuntap := range tuntaps {
var prettyRoute []string
for _, route := range tuntap.Routes() {
prettyRoute = append(prettyRoute, route.Dst.String())
}
t.AppendRow(table.Row{i, tuntap.Name(), strings.Join(prettyRoute, ",")})
}
App.Println(t.Render())
return nil
},
})
App.AddCommand(&grumble.Command{
Name: "interface_create",
Aliases: []string{"ifcreate"},
Help: "Create a new tuntap interface",
Usage: "interface_create --name [ifname]",
HelpGroup: "Interfaces",
Flags: func(f *grumble.Flags) {
f.StringL("name", "", "the interface name to create (if empty, will use a generated name)")
},
Run: func(c *grumble.Context) error {
ifName := c.Flags.String("name")
if ifName == "" {
logrus.Info("Generating a random interface name...")
rng, err := codenames.DefaultRNG()
if err != nil {
return err
}
ifName = codenames.Generate(rng)
}
logrus.Infof("Creating a new \"%s\" interface...", ifName)
if err := tun.CreateTUN(ifName); err != nil {
return err
}
logrus.Info("Interface created!")
return nil
},
})
App.AddCommand(&grumble.Command{
Name: "interface_delete",
Aliases: []string{"ifdel"},
Help: "Delete a tuntap interface",
Usage: "interface_delete --name [ifname]",
HelpGroup: "Interfaces",
Flags: func(f *grumble.Flags) {
f.StringL("name", "", "the interface name to delete")
},
Run: func(c *grumble.Context) error {
ifName := c.Flags.String("name")
if ifName == "" {
return errors.New("please specify a valid interface using --name [interface]")
}
stun, err := tun.GetTunByName(ifName)
if err != nil {
return err
}
if err := stun.Destroy(); err != nil {
return err
}
logrus.Info("Interface destroyed.")
return nil
},
})
App.AddCommand(&grumble.Command{
Name: "route_add",
Aliases: []string{"add_route", "interface_route_add", "interface_add_route"},
Help: "Add a route to a network interface",
Usage: "route_add --name [ifname] --route [cidr]",
HelpGroup: "Interfaces",
Flags: func(f *grumble.Flags) {
f.StringL("name", "", "the interface name")
f.StringL("route", "", "the network cidr")
},
Run: func(c *grumble.Context) error {
ifName := c.Flags.String("name")
if ifName == "" {
return errors.New("please specify an interface")
}
routeCidr := c.Flags.String("route")
if routeCidr == "" {
return errors.New("please specify a route")
}
stun, err := tun.GetTunByName(ifName)
if err != nil {
return err
}
if err := stun.AddRoute(routeCidr); err != nil {
return err
}
logrus.Info("Route created.")
return nil
},
})
App.AddCommand(&grumble.Command{
Name: "route_del",
Aliases: []string{"del_route", "interface_route_del", "interface_del_route"},
Help: "Delete a route",
Usage: "route_del --name [ifname] --route [cidr]",
HelpGroup: "Interfaces",
Flags: func(f *grumble.Flags) {
f.StringL("name", "", "the interface name")
f.StringL("route", "", "the network cidr")
},
Run: func(c *grumble.Context) error {
routeCidr := c.Flags.String("route")
if routeCidr == "" {
tuntaps, err := tun.GetTunTaps()
if err != nil {
return err
}
var possibleRoutes []string
for _, tuntap := range tuntaps {
for _, route := range tuntap.Routes() {
possibleRoutes = append(possibleRoutes, fmt.Sprintf("%s (%s)", route.Dst.String(), tuntap.Name()))
}
}
if len(possibleRoutes) == 0 {
return errors.New("no routes available")
}
routePrompt := &survey.MultiSelect{
Message: "Select routes to delete:",
Options: possibleRoutes,
}
var selectedRoutes []string
if err := survey.AskOne(routePrompt, &selectedRoutes); err != nil {
return err
}
for _, selectedRoute := range selectedRoutes {
route := strings.Split(selectedRoute, " ")[0]
ifByRoute, err := tun.GetTunByRoute(route)
if err != nil {
logrus.Errorf("Failed to get tuntap by route \"%s\": %v", route, err)
}
if err := ifByRoute.DelRoute(route); err != nil {
logrus.Errorf("Failed to delete route \"%s\": %v", route, err)
}
}
return nil
}
ifName := c.Flags.String("name")
if ifName == "" {
// Attempt to search for route.
ifByRoute, err := tun.GetTunByRoute(routeCidr)
if err != nil {
return err
}
ifName = ifByRoute.Name()
}
stun, err := tun.GetTunByName(ifName)
if err != nil {
return err
}
if err := stun.DelRoute(routeCidr); err != nil {
return err
}
logrus.Info("Route deleted.")
return nil
},
})
App.AddCommand(&grumble.Command{
Name: "autoroute",
Help: "Setup everything for you (interfaces, routes & tunnel)",
HelpGroup: "Tunneling",
Usage: "autoroute",
Flags: func(f *grumble.Flags) {
f.BoolL("with-ipv6", false, "Include IPv6 addresses")
},
Run: func(c *grumble.Context) error {
if _, ok := AgentList[CurrentAgentID]; !ok {
return ErrInvalidAgent
}
CurrentAgent := AgentList[CurrentAgentID]
// Note: Network information is not refreshed when calling this command
if CurrentAgent.Session == nil {
return ErrInvalidAgent
}
var possibleRoutes []string
for _, ifaceInfo := range CurrentAgent.Network {
for _, address := range ifaceInfo.Addresses {
ip, _, err := net.ParseCIDR(address)
if err != nil {
continue
}
if !ip.IsLoopback() {
if ip.To4() != nil || c.Flags.Bool("with-ipv6") {
possibleRoutes = append(possibleRoutes, address)
}
}
}
}
routePrompt := &survey.MultiSelect{
Message: "Select routes to add:",
Options: possibleRoutes,
}
var selectedRoutes []string
if err := survey.AskOne(routePrompt, &selectedRoutes); err != nil {
return err
}
if len(selectedRoutes) == 0 {
return errors.New("no route selected")
}
var ifaceSelectionPrompt string
if err := survey.AskOne(&survey.Select{Message: "Create a new interface or use an existing one?", Options: []string{"Create a new interface", "Use an existing one"}}, &ifaceSelectionPrompt); err != nil {
return err
}
var selectedIface string
if ifaceSelectionPrompt == "Create a new interface" {
logrus.Info("Generating a random interface name...")
rng, err := codenames.DefaultRNG()
if err != nil {
return err
}
ifName := codenames.Generate(rng)
logrus.Infof("Creating a new \"%s\" interface...", ifName)
if err := tun.CreateTUN(ifName); err != nil {
return err
}
selectedIface = ifName
} else {
ifaces, err := net.Interfaces()
if err != nil {
return err
}
var ifaceNames []string
for _, iface := range ifaces {
ifaceNames = append(ifaceNames, iface.Name)
}
if err := survey.AskOne(&survey.Select{Message: "Select the interface to use", Options: ifaceNames}, &selectedIface); err != nil {
return err
}
}
logrus.Infof("Using interface %s, creating routes...", selectedIface)
stun, err := tun.GetTunByName(selectedIface)
if err != nil {
return err
}
for _, route := range selectedRoutes {
if err := stun.AddRoute(route); err != nil {
logrus.Errorf("Could not add route %s: %v", route, err)
continue
}
logrus.Infof("Route %s created.", route)
}
startTunnel := false
prompt := &survey.Confirm{
Message: "Start the tunnel?",
}
survey.AskOne(prompt, &startTunnel)
if startTunnel {
go StartTunnel(CurrentAgent, selectedIface)
} else {
logrus.Infof("You can start the tunnel with: start --tun %s", selectedIface)
}
return nil
},
})
}
ligolo-ng-0.7.5/cmd/proxy/main.go 0000664 0000000 0000000 00000010060 14735236651 0016622 0 ustar 00root root 0000000 0000000 package main
import (
"flag"
"fmt"
"os"
"strings"
"github.com/desertbit/grumble"
"github.com/hashicorp/yamux"
"github.com/nicocha30/ligolo-ng/cmd/proxy/app"
"github.com/nicocha30/ligolo-ng/pkg/controller"
"github.com/sirupsen/logrus"
)
var (
version = "dev"
commit = "none"
date = "unknown"
)
func main() {
var allowDomains []string
var verboseFlag = flag.Bool("v", false, "enable verbose mode")
var listenInterface = flag.String("laddr", "0.0.0.0:11601", "listening address (prefix with https:// for websocket)")
var enableAutocert = flag.Bool("autocert", false, "automatically request letsencrypt certificates, requires port 80 to be accessible")
var enableSelfcert = flag.Bool("selfcert", false, "dynamically generate self-signed certificates")
var certFile = flag.String("certfile", "certs/cert.pem", "TLS server certificate")
var keyFile = flag.String("keyfile", "certs/key.pem", "TLS server key")
var domainWhitelist = flag.String("allow-domains", "", "autocert authorised domains, if empty, allow all domains, multiple domains should be comma-separated.")
var selfcertDomain = flag.String("selfcert-domain", "ligolo", "The selfcert TLS domain to use")
var versionFlag = flag.Bool("version", false, "show the current version")
flag.Usage = func() {
fmt.Printf("Ligolo-ng %s / %s / %s\n", version, commit, date)
fmt.Println("Made in France with love by @Nicocha30!")
fmt.Println("https://github.com/nicocha30/ligolo-ng")
fmt.Printf("\nUsage of %s:\n", os.Args[0])
flag.PrintDefaults()
}
flag.Parse()
if *versionFlag {
fmt.Printf("Ligolo-ng %s / %s / %s\n", version, commit, date)
return
}
if *verboseFlag {
logrus.SetLevel(logrus.DebugLevel)
}
// If verbose is set, include method and line in log messages
logrus.SetReportCaller(*verboseFlag)
if *domainWhitelist != "" {
allowDomains = strings.Split(*domainWhitelist, ",")
}
app.App.SetPrintASCIILogo(func(a *grumble.App) {
a.Println(" __ _ __ ")
a.Println(" / / (_)___ _____ / /___ ____ ____ _")
a.Println(" / / / / __ `/ __ \\/ / __ \\______/ __ \\/ __ `/")
a.Println(" / /___/ / /_/ / /_/ / / /_/ /_____/ / / / /_/ / ")
a.Println("/_____/_/\\__, /\\____/_/\\____/ /_/ /_/\\__, / ")
a.Println(" /____/ /____/ ")
a.Println("\n Made in France ♥ by @Nicocha30!")
a.Printf(" Version: %s\n\n", version)
})
if *enableSelfcert && *selfcertDomain == "ligolo" {
logrus.Warning("Using default selfcert domain 'ligolo', beware of CTI, SOC and IoC!")
}
app.Run()
proxyController := controller.New(controller.ControllerConfig{
EnableAutocert: *enableAutocert,
EnableSelfcert: *enableSelfcert,
Address: *listenInterface,
Certfile: *certFile,
Keyfile: *keyFile,
DomainWhitelist: allowDomains,
SelfcertDomain: *selfcertDomain,
})
app.ProxyController = &proxyController
go proxyController.ListenAndServe()
// Wait for listener
if err := proxyController.WaitForReady(); err != nil {
logrus.Fatal(err)
}
// Agent registration goroutine
go func() {
for {
remoteConn := <-proxyController.Connection
yamuxConn, err := yamux.Client(remoteConn, nil)
if err != nil {
logrus.Errorf("could not create yamux client, error: %v", err)
continue
}
agent, err := controller.NewAgent(yamuxConn)
if err != nil {
logrus.Errorf("could not register agent, error: %v", err)
continue
}
logrus.WithFields(logrus.Fields{"remote": remoteConn.RemoteAddr(), "name": agent.Name, "id": agent.SessionID}).Info("Agent joined.")
if err := app.RegisterAgent(agent); err != nil {
logrus.Errorf("could not register agent: %s", err.Error())
}
go func() {
// Check agent status
for {
select {
case <-agent.Session.CloseChan(): // Agent closed
logrus.WithFields(logrus.Fields{"remote": remoteConn.RemoteAddr(), "name": agent.Name, "id": agent.SessionID}).Warnf("Agent dropped.")
return
}
}
}()
}
}()
// Grumble doesn't like cli args
os.Args = []string{}
grumble.Main(app.App)
}
ligolo-ng-0.7.5/doc/ 0000775 0000000 0000000 00000000000 14735236651 0014173 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/doc/logo.png 0000664 0000000 0000000 00000043011 14735236651 0015640 0 ustar 00root root 0000000 0000000 PNG
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1z 'ۭFs}mPDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDTj?O IENDB` ligolo-ng-0.7.5/go.mod 0000664 0000000 0000000 00000003447 14735236651 0014544 0 ustar 00root root 0000000 0000000 module github.com/nicocha30/ligolo-ng
go 1.20
require (
github.com/AlecAivazis/survey/v2 v2.3.5
github.com/desertbit/grumble v1.1.3
github.com/go-ping/ping v1.1.0
github.com/hashicorp/yamux v0.1.0
github.com/jedib0t/go-pretty/v6 v6.3.5
github.com/sirupsen/logrus v1.9.3
golang.org/x/crypto v0.24.0
golang.org/x/net v0.26.0
golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 // indirect
golang.zx2c4.com/wireguard v0.0.0-20220703234212-c31a7b1ab478
)
require (
github.com/google/uuid v1.3.0
github.com/nicocha30/gvisor-ligolo v0.0.0-20230726075806-989fa2c0a413
github.com/vishvananda/netlink v1.1.1-0.20211118161826-650dca95af54
github.com/vmihailenco/msgpack/v5 v5.4.1
golang.org/x/sys v0.21.0
nhooyr.io/websocket v1.8.11
)
require (
github.com/desertbit/closer/v3 v3.1.3 // indirect
github.com/desertbit/columnize v2.1.0+incompatible // indirect
github.com/desertbit/go-shlex v0.1.1 // indirect
github.com/desertbit/readline v1.5.1 // indirect
github.com/fatih/color v1.13.0 // indirect
github.com/google/btree v1.1.2 // indirect
github.com/hashicorp/errwrap v1.1.0 // indirect
github.com/hashicorp/go-multierror v1.1.1 // indirect
github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
github.com/mattn/go-colorable v0.1.12 // indirect
github.com/mattn/go-isatty v0.0.14 // indirect
github.com/mattn/go-runewidth v0.0.13 // indirect
github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
github.com/rivo/uniseg v0.2.0 // indirect
github.com/vishvananda/netns v0.0.0-20200728191858-db3c7e526aae // indirect
github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
golang.org/x/sync v0.7.0 // indirect
golang.org/x/term v0.21.0 // indirect
golang.org/x/text v0.16.0 // indirect
golang.org/x/time v0.0.0-20220609170525-579cf78fd858 // indirect
)
ligolo-ng-0.7.5/go.sum 0000664 0000000 0000000 00000034417 14735236651 0014572 0 ustar 00root root 0000000 0000000 github.com/AlecAivazis/survey/v2 v2.3.5 h1:A8cYupsAZkjaUmhtTYv3sSqc7LO5mp1XDfqe5E/9wRQ=
github.com/AlecAivazis/survey/v2 v2.3.5/go.mod h1:4AuI9b7RjAR+G7v9+C4YSlX/YL3K3cWNXgWXOhllqvI=
github.com/Netflix/go-expect v0.0.0-20180615182759-c93bf25de8e8/go.mod h1:oX5x61PbNXchhh0oikYAH+4Pcfw5LKv21+Jnpr6r6Pc=
github.com/Netflix/go-expect v0.0.0-20190729225929-0e00d9168667/go.mod h1:oX5x61PbNXchhh0oikYAH+4Pcfw5LKv21+Jnpr6r6Pc=
github.com/Netflix/go-expect v0.0.0-20220104043353-73e0943537d2 h1:+vx7roKuyA63nhn5WAunQHLTznkw5W8b1Xc0dNjp83s=
github.com/Netflix/go-expect v0.0.0-20220104043353-73e0943537d2/go.mod h1:HBCaDeC1lPdgDeDbhX8XFpy1jqjK0IBG8W5K+xYqA0w=
github.com/chzyer/logex v1.1.10 h1:Swpa1K6QvQznwJRcfTfQJmTE72DqScAa40E+fbHEXEE=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 h1:q763qf9huN11kDQavWsoZXJNW3xEE4JJyHa5Q25/sd8=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
github.com/creack/pty v1.1.17 h1:QeVUsEDNrLBW4tMgZHvxy18sKtr6VI492kBhUfhDJNI=
github.com/creack/pty v1.1.17/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/desertbit/closer/v3 v3.1.2/go.mod h1:AAC4KRd8DC40nwvV967J/kDFhujMEiuwIKQfN0IDxXw=
github.com/desertbit/closer/v3 v3.1.3 h1:WUxD92dKrXuqSgbiAsqN6MPdnli2xIjkn6WpyC5AzXE=
github.com/desertbit/closer/v3 v3.1.3/go.mod h1:AAC4KRd8DC40nwvV967J/kDFhujMEiuwIKQfN0IDxXw=
github.com/desertbit/columnize v2.1.0+incompatible h1:h55rYmdrWoTj7w9aAnCkxzM3C2Eb8zuFa2W41t0o5j0=
github.com/desertbit/columnize v2.1.0+incompatible/go.mod h1:5kPrzQwKbQ8E5D28nvTVPqIBJyj+8jvJzwt6HXZvXgI=
github.com/desertbit/go-shlex v0.1.1 h1:c65HnbgX1QyC6kPL1dMzUpZ4puNUE6ai/eVucWNLNsk=
github.com/desertbit/go-shlex v0.1.1/go.mod h1:Qbb+mJNud5AypgHZ81EL8syOGaWlwvAOTqS7XmWI4pQ=
github.com/desertbit/grumble v1.1.3 h1:gbdgVGWsHmNraJ7Gn6Q4TiUEIHU/UHfbc1KUSbBlgYU=
github.com/desertbit/grumble v1.1.3/go.mod h1:r7j3ShNy5EmOsegRD2DzTutIaGiLiA3M5yBTXXeLwcs=
github.com/desertbit/readline v1.5.1 h1:/wOIZkWYl1s+IvJm/5bOknfUgs6MhS9svRNZpFM53Os=
github.com/desertbit/readline v1.5.1/go.mod h1:pHQgTsCFs9Cpfh5mlSUFi9Xa5kkL4d8L1Jo4UVWzPw0=
github.com/fatih/color v1.10.0/go.mod h1:ELkj/draVOlAH/xkhN6mQ50Qd0MPOk5AAr3maGEBuJM=
github.com/fatih/color v1.13.0 h1:8LOYc1KYPPmyKMuN8QV2DNRWNbLo6LZ0iLs8+mlH53w=
github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568 h1:BHsljHzVlRcyQhjrss6TZTdY2VfCqZPbv5k3iBFa2ZQ=
github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
github.com/go-ping/ping v1.1.0 h1:3MCGhVX4fyEUuhsfwPrsEdQw6xspHkv5zHsiSoDFZYw=
github.com/go-ping/ping v1.1.0/go.mod h1:xIFjORFzTxqIV/tDVGO4eDy/bLuSyawEeojSm3GfRGk=
github.com/google/btree v1.1.2 h1:xf4v41cLI2Z6FxbKm+8Bu+m8ifhj15JuZ9sa0jZCMUU=
github.com/google/btree v1.1.2/go.mod h1:qOPhT0dTNdNzV6Z/lhRX0YXUafgPLFUh+gZMl761Gm4=
github.com/google/uuid v1.2.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
github.com/hashicorp/errwrap v1.1.0 h1:OxrOeh75EUXMY8TBjag2fzXGZ40LB6IKw45YeGUDY2I=
github.com/hashicorp/errwrap v1.1.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHhCYQXV3UM06sGGrk=
github.com/hashicorp/go-multierror v1.1.0/go.mod h1:spPvp8C1qA32ftKqdAHm4hHTbPw+vmowP0z+KUhOZdA=
github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
github.com/hashicorp/yamux v0.1.0 h1:DzDIF6Sd7GD2sX0kDFpHAsJMY4L+OfTvtuaQsOYXxzk=
github.com/hashicorp/yamux v0.1.0/go.mod h1:CtWFDAQgb7dxtzFs4tWbplKIe2jSi3+5vKbgIO0SLnQ=
github.com/hinshun/vt10x v0.0.0-20180616224451-1954e6464174/go.mod h1:DqJ97dSdRW1W22yXSB90986pcOyQ7r45iio1KN2ez1A=
github.com/hinshun/vt10x v0.0.0-20180809195222-d55458df857c/go.mod h1:DqJ97dSdRW1W22yXSB90986pcOyQ7r45iio1KN2ez1A=
github.com/hinshun/vt10x v0.0.0-20220119200601-820417d04eec h1:qv2VnGeEQHchGaZ/u7lxST/RaJw+cv273q79D81Xbog=
github.com/hinshun/vt10x v0.0.0-20220119200601-820417d04eec/go.mod h1:Q48J4R4DvxnHolD5P8pOtXigYlRuPLGl6moFx3ulM68=
github.com/jedib0t/go-pretty/v6 v6.3.5 h1:B6RuZT3Gz0NvFwADctw+gZn3cSA+jIHykXyd72zPgOY=
github.com/jedib0t/go-pretty/v6 v6.3.5/go.mod h1:MgmISkTWDSFu0xOqiZ0mKNntMQ2mDgOcwOkwBEkMDJI=
github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 h1:Z9n2FFNUXsshfwJMBgNA0RU6/i7WVaAegv3PtuIHPMs=
github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:CzGEWj7cYgsdH8dAjBGEr58BoE7ScuLd+fwFZ44+/x8=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/pty v1.1.8/go.mod h1:O1sed60cT9XZ5uDucP5qwvh+TE3NnUj51EiZO/lmSfw=
github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
github.com/mattn/go-colorable v0.1.8/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
github.com/mattn/go-colorable v0.1.9/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
github.com/mattn/go-colorable v0.1.12 h1:jF+Du6AlPIjs2BiUiQlKOX0rt3SujHxPnksPKZbaA40=
github.com/mattn/go-colorable v0.1.12/go.mod h1:u5H1YNBxpqRaxsYJYSkiCWKzEfiAb1Gb520KVy5xxl4=
github.com/mattn/go-isatty v0.0.3/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y=
github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
github.com/mattn/go-runewidth v0.0.13 h1:lTGmDsbAYt5DmK6OnoV7EuIF1wEIFAcxld6ypU4OSgU=
github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b/go.mod h1:01TrycV0kFyexm33Z7vhZRXopbI8J3TDReVlkTgMUxE=
github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d h1:5PJl274Y63IEHC+7izoQE9x6ikvDFZS2mDVS3drnohI=
github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d/go.mod h1:01TrycV0kFyexm33Z7vhZRXopbI8J3TDReVlkTgMUxE=
github.com/nbutton23/zxcvbn-go v0.0.0-20180912185939-ae427f1e4c1d/go.mod h1:o96djdrsSGy3AWPyBgZMAGfxZNfgntdJG+11KU4QvbU=
github.com/nicocha30/gvisor-ligolo v0.0.0-20230726075806-989fa2c0a413 h1:9cgu57q3a2D7nCFFo/g00dWys7k40ytbo8D4GbdOGzs=
github.com/nicocha30/gvisor-ligolo v0.0.0-20230726075806-989fa2c0a413/go.mod h1:vbtai+lzBPDh+pFbVzUzcsvwZhiwHo5gR3MfUyLTLO8=
github.com/pkg/profile v1.6.0/go.mod h1:qBsxPvzyUincmltOk6iyRVxHYg4adc0OFOv72ZdLa18=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
github.com/stretchr/testify v1.2.1/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.7.4 h1:wZRexSlwd7ZXfKINDLsO4r7WBt3gTKONc6K/VesHvHM=
github.com/stretchr/testify v1.7.4/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
github.com/vishvananda/netlink v1.1.1-0.20211118161826-650dca95af54 h1:8mhqcHPqTMhSPoslhGYihEgSfc77+7La1P6kiB6+9So=
github.com/vishvananda/netlink v1.1.1-0.20211118161826-650dca95af54/go.mod h1:twkDnbuQxJYemMlGd4JFIcuhgX83tXhKS2B/PRMpOho=
github.com/vishvananda/netns v0.0.0-20200728191858-db3c7e526aae h1:4hwBBUfQCFe3Cym0ZtKyq7L16eZUtYKs+BaHDN6mAns=
github.com/vishvananda/netns v0.0.0-20200728191858-db3c7e526aae/go.mod h1:DD4vA1DwXk04H54A1oHXtwZmA0grkVMdPxx/VGLCah0=
github.com/vmihailenco/msgpack/v5 v5.4.1 h1:cQriyiUvjTwOHg8QZaPihLWeRAAVoCpE00IUPn0Bjt8=
github.com/vmihailenco/msgpack/v5 v5.4.1/go.mod h1:GaZTsDaehaPpQVyxrf5mtQlH+pc21PIudVV/E3rRQok=
github.com/vmihailenco/tagparser/v2 v2.0.0 h1:y09buUbR+b5aycVFQs/g70pqKVZNBmxwAhO7/IwNM9g=
github.com/vmihailenco/tagparser/v2 v2.0.0/go.mod h1:Wri+At7QHww0WTrCBeu4J6bNtoV6mEfg5OIWRZA9qds=
golang.org/x/crypto v0.0.0-20190123085648-057139ce5d2b/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.24.0 h1:mnl8DM0o513X8fdIkmyFE/5hTYxbwYOjDS/+rK6qpRI=
golang.org/x/crypto v0.24.0/go.mod h1:Z1PMYSOR5nyMcyAVAIQSKCDwalqy85Aqn1x3Ws4L5DM=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4/go.mod h1:RBQZq4jEuRlivfhVLdyRGr576XBO4/greRjx4P4O3yc=
golang.org/x/net v0.26.0 h1:soB7SVo0PWrY4vPW/+ay0jKDNScG2X9wFeYlXIvJsOQ=
golang.org/x/net v0.26.0/go.mod h1:5YKkiSynbBIh3p6iOc/vibscux0x38BZDkn8sCUPxHE=
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
golang.org/x/sys v0.0.0-20180606202747-9527bec2660b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200217220822-9197077df867/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200728102440-3e129f6d46b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201009025420-dfb3f7c4e634/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201214210602-f9fddec55a1e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220422013727-9388b58f7150/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=
golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20210503060354-a79de5458b56/go.mod h1:tfny5GFUkzUvx4ps4ajbZsCe5lw1metzhBm9T3x7oIY=
golang.org/x/term v0.21.0 h1:WVXCp+/EBEHOj53Rvu+7KiT/iElMrO8ACK16SMZ3jaA=
golang.org/x/term v0.21.0/go.mod h1:ooXLefLobQVslOqselCNF4SxFAaoS6KujMbsGzSDmX0=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4=
golang.org/x/text v0.16.0/go.mod h1:GhwF1Be+LQoKShO3cGOHzqOgRrGaYc9AvblQOmPVHnI=
golang.org/x/time v0.0.0-20220609170525-579cf78fd858 h1:Dpdu/EMxGMFgq0CeYMh4fazTD2vtlZRYE7wyynxJb9U=
golang.org/x/time v0.0.0-20220609170525-579cf78fd858/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 h1:Ug9qvr1myri/zFN6xL17LSCBGFDnphBBhzmILHsM5TY=
golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224/go.mod h1:deeaetjYA+DHMHg+sMSMI58GrEteJUUzzw7en6TJQcI=
golang.zx2c4.com/wireguard v0.0.0-20220703234212-c31a7b1ab478 h1:vDy//hdR+GnROE3OdYbQKt9rdtNdHkDtONvpRwmls/0=
golang.zx2c4.com/wireguard v0.0.0-20220703234212-c31a7b1ab478/go.mod h1:bVQfyl2sCM/QIIGHpWbFGfHPuDvqnCNkT6MQLTCjO/U=
gopkg.in/AlecAivazis/survey.v1 v1.8.5/go.mod h1:iBNOmqKz/NUbZx3bA+4hAGLRC7fSK7tgtVDT4tB22XA=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
nhooyr.io/websocket v1.8.11 h1:f/qXNc2/3DpoSZkHt1DQu6rj4zGC8JmkkLkWss0MgN0=
nhooyr.io/websocket v1.8.11/go.mod h1:rN9OFWIUwuxg4fR5tELlYC04bXYowCP9GX47ivo2l+c=
ligolo-ng-0.7.5/pkg/ 0000775 0000000 0000000 00000000000 14735236651 0014207 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/pkg/agent/ 0000775 0000000 0000000 00000000000 14735236651 0015305 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/pkg/agent/handler.go 0000664 0000000 0000000 00000020025 14735236651 0017250 0 ustar 00root root 0000000 0000000 package agent
import (
"context"
"errors"
"fmt"
"net"
"os"
"os/user"
"syscall"
"time"
"github.com/google/uuid"
"github.com/nicocha30/ligolo-ng/pkg/agent/neterror"
"github.com/nicocha30/ligolo-ng/pkg/agent/smartping"
"github.com/nicocha30/ligolo-ng/pkg/protocol"
"github.com/nicocha30/ligolo-ng/pkg/relay"
"github.com/sirupsen/logrus"
)
var listenerConntrack map[int32]net.Conn
var listenerMap map[int32]interface{}
var connTrackID int32
var listenerID int32
var sessionID string
func init() {
listenerConntrack = make(map[int32]net.Conn)
listenerMap = make(map[int32]interface{})
id := uuid.New()
sessionID = id.String()
}
// Listener is the base class implementing listener sockets for Ligolo
type Listener struct {
net.Listener
}
// NewListener register a new listener
func NewListener(network string, addr string) (Listener, error) {
lis, err := net.Listen(network, addr)
if err != nil {
return Listener{}, err
}
return Listener{lis}, nil
}
// ListenAndServe fill new listener connections to a channel
func (s *Listener) ListenAndServe(connTrackChan chan int32) error {
for {
conn, err := s.Accept()
if err != nil {
return err
}
connTrackID++
connTrackChan <- connTrackID
listenerConntrack[connTrackID] = conn
}
}
// Close request the main listener to exit
func (s *Listener) Close() error {
return s.Listener.Close()
}
// UDPListener is the base class implementing UDP listeners for Ligolo
type UDPListener struct {
*net.UDPConn
}
// NewUDPListener register a new UDP listener
func NewUDPListener(network string, addr string) (UDPListener, error) {
udpaddr, err := net.ResolveUDPAddr(network, addr)
if err != nil {
return UDPListener{}, nil
}
udplis, err := net.ListenUDP(network, udpaddr)
if err != nil {
return UDPListener{}, err
}
return UDPListener{udplis}, err
}
func HandleConn(conn net.Conn) {
decoder := protocol.NewDecoder(conn)
if err := decoder.Decode(); err != nil {
logrus.Error(err)
return
}
e := decoder
switch decoder.Payload.(type) {
case *protocol.ConnectRequestPacket:
connRequest := e.Payload.(*protocol.ConnectRequestPacket)
encoder := protocol.NewEncoder(conn)
logrus.Debugf("Got connect request to %s:%d", connRequest.Address, connRequest.Port)
var network string
if connRequest.Transport == protocol.TransportTCP {
network = "tcp"
} else {
network = "udp"
}
if connRequest.Net == protocol.Networkv4 {
network += "4"
} else {
network += "6"
}
var d net.Dialer
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
targetConn, err := d.DialContext(ctx, network, fmt.Sprintf("%s:%d", connRequest.Address, connRequest.Port))
defer cancel()
var connectPacket protocol.ConnectResponsePacket
if err != nil {
var serr syscall.Errno
if errors.As(err, &serr) {
// Magic trick ! If the error syscall indicate that the system responded, send back a RST packet!
if neterror.HostResponded(serr) {
connectPacket.Reset = true
}
}
connectPacket.Established = false
} else {
connectPacket.Established = true
}
if err := encoder.Encode(connectPacket); err != nil {
logrus.Error(err)
return
}
if connectPacket.Established {
relay.StartRelay(targetConn, conn)
}
case *protocol.HostPingRequestPacket:
pingRequest := e.Payload.(*protocol.HostPingRequestPacket)
encoder := protocol.NewEncoder(conn)
pingResponse := protocol.HostPingResponsePacket{Alive: smartping.TryResolve(pingRequest.Address)}
if err := encoder.Encode(pingResponse); err != nil {
logrus.Error(err)
return
}
case *protocol.InfoRequestPacket:
var username string
encoder := protocol.NewEncoder(conn)
hostname, err := os.Hostname()
if err != nil {
hostname = "UNKNOWN"
}
userinfo, err := user.Current()
if err != nil {
username = "Unknown"
} else {
username = userinfo.Username
}
netifaces, err := net.Interfaces()
if err != nil {
logrus.Error("could not get network interfaces")
return
}
infoResponse := protocol.InfoReplyPacket{
Name: fmt.Sprintf("%s@%s", username, hostname),
Interfaces: protocol.NewNetInterfaces(netifaces),
SessionID: sessionID,
}
if err := encoder.Encode(infoResponse); err != nil {
logrus.Error(err)
return
}
case *protocol.ListenerCloseRequestPacket:
// Request to close a listener
closeRequest := e.Payload.(*protocol.ListenerCloseRequestPacket)
encoder := protocol.NewEncoder(conn)
var err error
if lis, ok := listenerMap[closeRequest.ListenerID]; ok {
if l, ok := lis.(net.Listener); ok {
l.Close()
}
if l, ok := lis.(*net.UDPConn); ok {
l.Close()
}
} else {
err = errors.New("invalid listener id")
}
listenerResponse := protocol.ListenerCloseResponsePacket{
Err: err != nil,
}
if err != nil {
listenerResponse.ErrString = err.Error()
}
if err := encoder.Encode(listenerResponse); err != nil {
logrus.Error(err)
}
case *protocol.ListenerRequestPacket:
listenRequest := e.Payload.(*protocol.ListenerRequestPacket)
encoder := protocol.NewEncoder(conn)
connTrackChan := make(chan int32)
stopChan := make(chan error)
if listenRequest.Network == "tcp" {
listener, err := NewListener(listenRequest.Network, listenRequest.Address)
if err != nil {
listenerResponse := protocol.ListenerResponsePacket{
ListenerID: 0,
Err: true,
ErrString: err.Error(),
}
if err := encoder.Encode(listenerResponse); err != nil {
logrus.Error(err)
}
return
}
listenerMap[listenerID] = listener.Listener
listenerResponse := protocol.ListenerResponsePacket{
ListenerID: listenerID,
Err: false,
ErrString: "",
}
if err := encoder.Encode(listenerResponse); err != nil {
logrus.Error(err)
}
go func() {
if err := listener.ListenAndServe(connTrackChan); err != nil {
stopChan <- err
}
}()
defer listener.Close()
} else if listenRequest.Network == "udp" {
udplistener, err := NewUDPListener(listenRequest.Network, listenRequest.Address)
if err != nil {
listenerResponse := protocol.ListenerResponsePacket{
ListenerID: 0,
Err: true,
ErrString: err.Error(),
}
if err := encoder.Encode(listenerResponse); err != nil {
logrus.Error(err)
}
return
}
listenerMap[listenerID] = udplistener.UDPConn
listenerResponse := protocol.ListenerResponsePacket{
ListenerID: listenerID,
Err: false,
ErrString: "",
}
if err := encoder.Encode(listenerResponse); err != nil {
logrus.Error(err)
}
go relay.StartRelay(conn, udplistener)
}
listenerID++
if listenRequest.Network == "tcp" {
for {
var bindResponse protocol.ListenerBindReponse
select {
case err := <-stopChan:
logrus.Error(err)
bindResponse = protocol.ListenerBindReponse{
SockID: 0,
Err: true,
ErrString: err.Error(),
}
case connTrackID := <-connTrackChan:
bindResponse = protocol.ListenerBindReponse{
SockID: connTrackID,
Err: false,
}
}
if err := encoder.Encode(bindResponse); err != nil {
logrus.Error(err)
}
if bindResponse.Err {
break
}
}
}
case *protocol.ListenerSockRequestPacket:
sockRequest := e.Payload.(*protocol.ListenerSockRequestPacket)
socketEncDec := protocol.NewEncoderDecoder(conn)
var sockResponse protocol.ListenerSockResponsePacket
if _, ok := listenerConntrack[sockRequest.SockID]; !ok {
// Handle error
sockResponse.ErrString = "invalid or unexistant SockID"
sockResponse.Err = true
}
if err := socketEncDec.Encode(sockResponse); err != nil {
logrus.Error(err)
return
}
if sockResponse.Err {
return
}
if err := socketEncDec.Decode(); err != nil {
logrus.Error(err)
return
}
netConn := listenerConntrack[sockRequest.SockID]
if err := socketEncDec.Payload.(*protocol.ListenerSocketConnectionReady).Err; err != false {
logrus.Debug("Socket relay session failed: error from proxy")
netConn.Close()
return
}
relay.StartRelay(netConn, conn)
case *protocol.ListenerCloseResponsePacket:
os.Exit(0)
}
}
ligolo-ng-0.7.5/pkg/agent/neterror/ 0000775 0000000 0000000 00000000000 14735236651 0017145 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/pkg/agent/neterror/neterror_unix.go 0000664 0000000 0000000 00000000753 14735236651 0022404 0 ustar 00root root 0000000 0000000 //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
package neterror
import (
"errors"
"syscall"
)
func HostResponded(err error) bool {
var se syscall.Errno
if errors.As(err, &se) {
return errors.Is(se, syscall.ECONNRESET) || errors.Is(se, syscall.ECONNABORTED) || errors.Is(se, syscall.ECONNREFUSED) // added ECONNREFUSED for handling "connection refused"
}
return false
}
ligolo-ng-0.7.5/pkg/agent/neterror/neterror_windows.go 0000664 0000000 0000000 00000000363 14735236651 0023110 0 ustar 00root root 0000000 0000000 package neterror
import (
"errors"
"syscall"
)
func HostResponded(err error) bool {
var se syscall.Errno
if errors.As(err, &se) {
return errors.Is(se, syscall.WSAECONNRESET) || errors.Is(se, syscall.WSAECONNABORTED)
}
return false
}
ligolo-ng-0.7.5/pkg/agent/smartping/ 0000775 0000000 0000000 00000000000 14735236651 0017311 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/pkg/agent/smartping/pinger.go 0000664 0000000 0000000 00000003170 14735236651 0021125 0 ustar 00root root 0000000 0000000 package smartping
import (
"github.com/go-ping/ping"
"github.com/sirupsen/logrus"
"net"
"os/exec"
"runtime"
"time"
)
// TryResolve tries to discover if the remote host is up using ICMP
func TryResolve(address string) bool {
// Always return true for localhost
magicNet := net.IPNet{
IP: net.IPv4(240, 0, 0, 0),
Mask: []byte{0xf0, 0x00, 0x00, 0x00},
}
if magicNet.Contains(net.ParseIP(address)) {
logrus.Debug("MagicIP Ping detected, returning true")
// Magic IP detected
return true
}
methods := []func(string) (bool, error){
RawPinger,
CommandPinger,
}
for _, method := range methods {
if result, err := method(address); err == nil {
return result
}
}
// Everything failed...
return false
}
// RawPinger use ICMP sockets to discover if a host is up. This could require administrative permissions on some hosts
func RawPinger(target string) (bool, error) {
pinger, err := ping.NewPinger(target)
if err != nil {
return false, err
}
pinger.Count = 1
pinger.Timeout = 4 * time.Second // NMAP default timeout ?
if runtime.GOOS == "windows" {
pinger.SetPrivileged(true)
}
err = pinger.Run()
if err != nil {
return false, err
}
return pinger.PacketsRecv != 0, nil
}
// CommandPinger uses the internal ping command (dirty), but should not require privileges
func CommandPinger(target string) (bool, error) {
countArg := "-c"
waitArg := "-W"
waitTime := "3"
if runtime.GOOS == "windows" {
countArg = "/n"
waitArg = "/w"
waitTime = "3000"
}
cmd := exec.Command("ping", countArg, "1", waitArg, waitTime, target)
if err := cmd.Run(); err != nil {
return false, err
}
return true, nil
}
ligolo-ng-0.7.5/pkg/agent/smartping/pinger_test.go 0000664 0000000 0000000 00000000452 14735236651 0022164 0 ustar 00root root 0000000 0000000 package smartping
import (
"fmt"
"testing"
)
func TestRawPinger(t *testing.T) {
r, err := RawPinger("127.0.0.1")
if err != nil {
t.Error(err)
}
fmt.Print(r)
}
func TestCommandPinger(t *testing.T) {
r, err := CommandPinger("127.0.0.1")
if err != nil {
t.Error(err)
}
fmt.Print(r)
}
ligolo-ng-0.7.5/pkg/controller/ 0000775 0000000 0000000 00000000000 14735236651 0016372 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/pkg/controller/agent.go 0000664 0000000 0000000 00000003663 14735236651 0020027 0 ustar 00root root 0000000 0000000 package controller
import (
"fmt"
"github.com/hashicorp/yamux"
"github.com/nicocha30/ligolo-ng/pkg/protocol"
"github.com/nicocha30/ligolo-ng/pkg/proxy"
)
type LigoloAgent struct {
Name string
Network []protocol.NetInterface
Session *yamux.Session
SessionID string
CloseChan chan bool
Interface string
Running bool
Listeners []*proxy.LigoloListener
}
func (la *LigoloAgent) AddListener(addr string, network string, to string) (*proxy.LigoloListener, error) {
proxyListener, err := proxy.NewListener(la.Session, addr, network, to)
if err != nil {
return nil, err
}
la.Listeners = append(la.Listeners, &proxyListener)
return &proxyListener, nil
}
func (la *LigoloAgent) GetListener(id int) *proxy.LigoloListener {
for _, listener := range la.Listeners {
if listener.ID == int32(id) {
return listener
}
}
return nil
}
func (la *LigoloAgent) DeleteListener(id int) {
for i, listener := range la.Listeners {
if listener.ID == int32(id) {
la.Listeners = append(la.Listeners[:i], la.Listeners[i+1:]...)
}
}
}
func (la *LigoloAgent) String() string {
raddr := "[Offline]"
if la.Session != nil {
raddr = la.Session.RemoteAddr().String()
}
return fmt.Sprintf("%s - %s - %s", la.Name, raddr, la.SessionID)
}
func NewAgent(session *yamux.Session) (*LigoloAgent, error) {
yamuxConnectionSession, err := session.Open()
if err != nil {
return nil, err
}
infoRequest := protocol.InfoRequestPacket{}
protocolEncoder := protocol.NewEncoder(yamuxConnectionSession)
protocolDecoder := protocol.NewDecoder(yamuxConnectionSession)
if err := protocolEncoder.Encode(infoRequest); err != nil {
return nil, err
}
if err := protocolDecoder.Decode(); err != nil {
return nil, err
}
reply := protocolDecoder.Payload.(*protocol.InfoReplyPacket)
return &LigoloAgent{
Name: reply.Name,
Network: reply.Interfaces,
Session: session,
SessionID: reply.SessionID,
CloseChan: make(chan bool),
}, nil
}
ligolo-ng-0.7.5/pkg/controller/controller.go 0000664 0000000 0000000 00000007424 14735236651 0021113 0 ustar 00root root 0000000 0000000 package controller
import (
"context"
"crypto/sha256"
"crypto/tls"
"errors"
"github.com/nicocha30/ligolo-ng/pkg/utils/selfcert"
"github.com/sirupsen/logrus"
"golang.org/x/crypto/acme/autocert"
"net"
"net/http"
"nhooyr.io/websocket"
"strings"
)
type Controller struct {
Network string
Connection chan net.Conn
startchan chan error
SelfCertCache autocert.DirCache
SelfCert *tls.Certificate
ControllerConfig
}
type ControllerConfig struct {
EnableAutocert bool
EnableSelfcert bool
SelfcertDomain string
Address string
Certfile string
Keyfile string
DomainWhitelist []string
}
func New(config ControllerConfig) Controller {
return Controller{Network: "tcp", Connection: make(chan net.Conn, 1024), ControllerConfig: config, startchan: make(chan error), SelfCertCache: "ligolo-selfcerts"}
}
func (c *Controller) WaitForReady() error {
return <-c.startchan
}
func (c *Controller) ListenAndServe() {
var tlsConfig tls.Config
if c.EnableAutocert {
// Enable letsencrypt
logrus.Info("Using Let's Encrypt ACME Autocert")
certManager := autocert.Manager{
Prompt: autocert.AcceptTOS,
Cache: autocert.DirCache("ligolo-certs"),
}
if len(c.DomainWhitelist) > 0 {
certManager.HostPolicy = autocert.HostWhitelist(c.DomainWhitelist...)
}
tlsConfig.GetCertificate = certManager.GetCertificate
// Check if port 80 is available
lis, err := net.Listen("tcp", ":http")
if err != nil {
c.startchan <- errors.New("Port 80 is not available, please make sure it's accessible for Let's Encrypt ACME challenge")
return
}
lis.Close()
go func() {
h := certManager.HTTPHandler(nil)
http.ListenAndServe(":http", h)
}()
} else if c.EnableSelfcert {
logrus.Warning("Using self-signed certificates")
selfcrt := selfcert.NewSelfCert(&c.SelfCertCache)
crt, err := selfcrt.GetCertificate(c.SelfcertDomain)
if err != nil {
logrus.Fatal(err)
}
logrus.Warnf("TLS Certificate fingerprint for %s is: %X\n", c.SelfcertDomain, sha256.Sum256(crt.Certificate[0]))
c.SelfCert = crt
tlsConfig.GetCertificate = func(info *tls.ClientHelloInfo) (*tls.Certificate, error) {
return crt, nil
}
} else if c.Certfile != "" && c.Keyfile != "" {
cer, err := tls.LoadX509KeyPair(c.Certfile, c.Keyfile)
if err != nil {
logrus.WithFields(logrus.Fields{"certfile": c.Certfile, "keyfile": c.Keyfile}).Error("Could not load TLS certificate. Please make sure paths are correct or use -autocert or -selfcert options")
c.startchan <- err
return
}
tlsConfig.Certificates = []tls.Certificate{cer}
} else {
c.startchan <- errors.New("No valid TLS configuration found, please use -certfile/-keyfile, -autocert or -selfcert options")
return
}
if strings.HasPrefix(c.Address, "https://") {
//SSL websocket protocol
listener, err := tls.Listen(c.Network, strings.Replace(c.Address, "https://", "", 1), &tlsConfig)
if err != nil {
c.startchan <- err
return
}
defer listener.Close()
c.startchan <- nil
logrus.Infof("Listening websocket on %s", c.Address)
s := &http.Server{
Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ws, err := websocket.Accept(w, r, nil)
if err != nil {
logrus.Error(err)
return
}
netctx := context.Background()
c.Connection <- websocket.NetConn(netctx, ws, websocket.MessageBinary)
}),
}
err = s.Serve(listener)
} else {
//direct listen with legacy ligolo-ng protocol
listener, err := tls.Listen(c.Network, c.Address, &tlsConfig)
if err != nil {
c.startchan <- err
return
}
defer listener.Close()
c.startchan <- nil // Controller is listening.
logrus.Infof("Listening on %s", c.Address)
for {
conn, err := listener.Accept()
if err != nil {
logrus.Error(err)
continue
}
c.Connection <- conn
}
}
}
ligolo-ng-0.7.5/pkg/protocol/ 0000775 0000000 0000000 00000000000 14735236651 0016050 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/pkg/protocol/decoder.go 0000664 0000000 0000000 00000003774 14735236651 0020017 0 ustar 00root root 0000000 0000000 package protocol
import (
"fmt"
"io"
"github.com/vmihailenco/msgpack/v5"
)
// LigoloDecoder is the struct containing the decoded Envelope and the reader
type LigoloDecoder struct {
reader io.Reader
Payload interface{}
}
// NewDecoder decode Ligolo-ng packets
func NewDecoder(reader io.Reader) LigoloDecoder {
return LigoloDecoder{reader: reader}
}
func interfaceFromPayloadType(payloadType uint8) (interface{}, error) {
switch payloadType {
case MessageInfoRequest:
return &InfoRequestPacket{}, nil
case MessageInfoReply:
return &InfoReplyPacket{}, nil
case MessageConnectRequest:
return &ConnectRequestPacket{}, nil
case MessageConnectResponse:
return &ConnectResponsePacket{}, nil
case MessageHostPingRequest:
return &HostPingRequestPacket{}, nil
case MessageHostPingResponse:
return &HostPingResponsePacket{}, nil
case MessageListenerRequest:
return &ListenerRequestPacket{}, nil
case MessageListenerResponse:
return &ListenerResponsePacket{}, nil
case MessageListenerBindRequest:
return &ListenerBindPacket{}, nil
case MessageListenerBindResponse:
return &ListenerBindReponse{}, nil
case MessageListenerSockRequest:
return &ListenerSockRequestPacket{}, nil
case MessageListenerSockResponse:
return &ListenerSockResponsePacket{}, nil
case MessageListenerCloseRequest:
return &ListenerCloseRequestPacket{}, nil
case MessageListenerCloseResponse:
return &ListenerCloseResponsePacket{}, nil
case MessageListenerSocketConnectionReady:
return &ListenerSocketConnectionReady{}, nil
default:
return nil, fmt.Errorf("decode called for unknown payload type: %d", payloadType)
}
}
// Decode read content from the reader and fill the Envelope
func (d *LigoloDecoder) Decode() error {
packer := msgpack.NewDecoder(d.reader)
var payloadType uint8
err := packer.Decode(&payloadType)
if err != nil {
return err
}
p, err := interfaceFromPayloadType(payloadType)
if err != nil {
return err
}
if err := packer.Decode(p); err != nil {
return err
}
d.Payload = p
return nil
}
ligolo-ng-0.7.5/pkg/protocol/encdec.go 0000664 0000000 0000000 00000000352 14735236651 0017620 0 ustar 00root root 0000000 0000000 package protocol
import "io"
type LigoloEncoderDecoder struct {
LigoloDecoder
LigoloEncoder
}
func NewEncoderDecoder(rw io.ReadWriter) LigoloEncoderDecoder {
return LigoloEncoderDecoder{
NewDecoder(rw),
NewEncoder(rw),
}
}
ligolo-ng-0.7.5/pkg/protocol/encoder.go 0000664 0000000 0000000 00000003723 14735236651 0020023 0 ustar 00root root 0000000 0000000 package protocol
import (
"fmt"
"io"
"github.com/vmihailenco/msgpack/v5"
)
// LigoloEncoder is the structure containing the writer used when encoding Envelopes
type LigoloEncoder struct {
writer io.Writer
}
// NewEncoder encode Ligolo-ng packets
func NewEncoder(writer io.Writer) LigoloEncoder {
return LigoloEncoder{writer: writer}
}
func payloadTypeFromInterface(payload interface{}) (uint8, error) {
switch payload := payload.(type) {
case InfoRequestPacket:
return MessageInfoRequest, nil
case InfoReplyPacket:
return MessageInfoReply, nil
case ConnectRequestPacket:
return MessageConnectRequest, nil
case ConnectResponsePacket:
return MessageConnectResponse, nil
case HostPingRequestPacket:
return MessageHostPingRequest, nil
case HostPingResponsePacket:
return MessageHostPingResponse, nil
case ListenerRequestPacket:
return MessageListenerRequest, nil
case ListenerResponsePacket:
return MessageListenerResponse, nil
case ListenerBindPacket:
return MessageListenerBindRequest, nil
case ListenerBindReponse:
return MessageListenerBindResponse, nil
case ListenerSockRequestPacket:
return MessageListenerSockRequest, nil
case ListenerSockResponsePacket:
return MessageListenerSockResponse, nil
case ListenerCloseRequestPacket:
return MessageListenerCloseRequest, nil
case ListenerCloseResponsePacket:
return MessageListenerCloseResponse, nil
case ListenerSocketConnectionReady:
return MessageListenerSocketConnectionReady, nil
default:
return 0, fmt.Errorf("payloadTypeFromInterface called for unknown payload type: %v", payload)
}
}
// Encode an Envelope packet and write the result into the writer
func (e *LigoloEncoder) Encode(payload interface{}) error {
packer := msgpack.NewEncoder(e.writer)
payloadType, err := payloadTypeFromInterface(payload)
if err != nil {
return err
}
if err := packer.Encode(payloadType); err != nil {
return err
}
if err := packer.Encode(payload); err != nil {
return err
}
return nil
}
ligolo-ng-0.7.5/pkg/protocol/packets.go 0000664 0000000 0000000 00000010476 14735236651 0020041 0 ustar 00root root 0000000 0000000 package protocol
import (
"net"
)
// Envelope is the structure used when Encoding/Decode ligolo packets
type Envelope struct {
Type uint8
Payload interface{}
}
const (
MessageInfoRequest = uint8(iota)
MessageInfoReply
MessageConnectRequest
MessageConnectResponse
MessageHostPingRequest
MessageHostPingResponse
MessageListenerRequest // Start a listener
MessageListenerResponse
MessageListenerBindRequest // Bind to a listener
MessageListenerBindResponse
MessageListenerSockRequest // Bind to a socket
MessageListenerSockResponse
MessageListenerCloseRequest
MessageListenerCloseResponse
MessageClose
MessageListenerSocketConnectionReady
)
const (
TransportTCP = uint8(iota)
TransportUDP
)
const (
Networkv4 = uint8(iota)
Networkv6
)
// InfoRequestPacket is sent by the proxy to discover the agent information
type InfoRequestPacket struct {
}
// InfoReplyPacket contains the Name of the agent and the network interfaces configuration
type InfoReplyPacket struct {
Name string
Interfaces []NetInterface
SessionID string
}
// ListenerSockRequestPacket is used by the proxy when relaying a listener socket
type ListenerSockRequestPacket struct {
SockID int32
}
// ListenerSockRequestPacket is the response to ListenerSockRequestPacket
type ListenerSockResponsePacket struct {
ErrString string
Err bool
}
type ListenerSocketConnectionReady struct {
Err bool
}
// ListenerRequestPacket is used when a new listener socket is created by the proxy.
type ListenerRequestPacket struct {
Network string
Address string
}
// ListenerResponsePacket is used to indicate if the Listener was created, and send the ListenerID.
type ListenerResponsePacket struct {
ListenerID int32
Err bool
ErrString string
}
// ListenerBindPacket is used by the proxy to Bind to a ListenerID, waiting for connections.
type ListenerBindPacket struct {
ListenerID int32
}
// ListenerBindReponse is returned when listener sockets are ready to be relayed from the agent to the proxy.
type ListenerBindReponse struct {
SockID int32
Err bool
ErrString string
}
// ListenerUDPPacket
type ListenerUDPPacket struct {
}
// ListenerCloseRequestPacket is the packet sent when closing Listeners
type ListenerCloseRequestPacket struct {
ListenerID int32
}
// ListenerCloseResponsePacket is the response to ListenerCloseRequestPacket
type ListenerCloseResponsePacket struct {
ErrString string
Err bool
}
// NetInterface is the structure containing the agent network informations
type NetInterface struct {
Index int // positive integer that starts at one, zero is never used
MTU int // maximum transmission unit
Name string // e.g., "en0", "lo0", "eth0.100"
HardwareAddr net.HardwareAddr // IEEE MAC-48, EUI-48 and EUI-64 form
Flags net.Flags // e.g., FlagUp, FlagLoopback, FlagMulticast
Addresses []string
}
// NewNetInterfaces converts a net.Interface slice to a NetInterface slice that can be transmitted over Gob
func NewNetInterfaces(netif []net.Interface) (out []NetInterface) {
// the net.Interface struct doesn't contains the IP Address, we need a new struct that store IPs
for _, iface := range netif {
var addrs []string
addresses, err := iface.Addrs()
if err != nil {
addresses = []net.Addr{}
}
for _, addrStr := range addresses {
addrs = append(addrs, addrStr.String())
}
out = append(out, NetInterface{
Index: iface.Index,
MTU: iface.MTU,
Name: iface.Name,
HardwareAddr: iface.HardwareAddr,
Flags: iface.Flags,
Addresses: addrs,
})
}
return
}
// ConnectRequestPacket is sent by the proxy to request a new TCP/UDP connection
type ConnectRequestPacket struct {
Net uint8
Transport uint8
Address string
Port uint16
}
// ConnectResponsePacket is the response to the ConnectRequestPacket and indicate if the connection can be established, and if a RST packet need to be sent
type ConnectResponsePacket struct {
Established bool
Reset bool
}
// HostPingRequestPacket is used when a ICMP packet is received on the proxy server. It is used to request a ping request to the agent
type HostPingRequestPacket struct {
Address string
}
// HostPingResponsePacket is sent by the agent to indicate the requested host status
type HostPingResponsePacket struct {
Alive bool
}
ligolo-ng-0.7.5/pkg/protocol/protocol_test.go 0000664 0000000 0000000 00000001072 14735236651 0021277 0 ustar 00root root 0000000 0000000 package protocol
import (
"bytes"
"fmt"
"io"
"testing"
)
func TestEncodeDecode(t *testing.T) {
var buffer bytes.Buffer
baseEnvelope := InfoReplyPacket{Name: "hello"}
enc := NewEncoder(&buffer)
if err := enc.Encode(baseEnvelope); err != nil {
t.Fatal(err)
}
fmt.Printf("Envelope created: %+v\n", buffer)
dec := NewDecoder(&buffer)
if err := dec.Decode(); err != nil {
if err != io.EOF {
t.Fatal(err)
}
}
fmt.Printf("Envelope: %+v\n", dec.Payload)
if dec.Payload.(InfoReplyPacket).Name != "hello" {
t.Fatal("invalid packet decoded")
}
}
ligolo-ng-0.7.5/pkg/proxy/ 0000775 0000000 0000000 00000000000 14735236651 0015370 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/pkg/proxy/listeners.go 0000664 0000000 0000000 00000011721 14735236651 0017731 0 ustar 00root root 0000000 0000000 package proxy
import (
"context"
"errors"
"fmt"
"io"
"net"
"github.com/hashicorp/yamux"
"github.com/nicocha30/ligolo-ng/pkg/protocol"
"github.com/nicocha30/ligolo-ng/pkg/relay"
"github.com/sirupsen/logrus"
)
type LigoloListener struct {
ID int32
ctx context.Context
sess *yamux.Session
Conn net.Conn
addr string
network string
to string
}
func NewListener(sess *yamux.Session, addr string, network string, to string) (LigoloListener, error) {
// Open a new Yamux Session
conn, err := sess.Open()
if err != nil {
return LigoloListener{}, err
}
ligoloProtocol := protocol.NewEncoderDecoder(conn)
// Request to open a new port on the agent
listenerPacket := protocol.ListenerRequestPacket{Address: addr, Network: network}
if err := ligoloProtocol.Encode(listenerPacket); err != nil {
return LigoloListener{}, err
}
// Get response from agent
if err := ligoloProtocol.Decode(); err != nil {
return LigoloListener{}, err
}
response := ligoloProtocol.Payload.(*protocol.ListenerResponsePacket)
if err := response.Err; err {
return LigoloListener{}, errors.New(response.ErrString)
}
return LigoloListener{ID: response.ListenerID, sess: sess, Conn: conn, addr: addr, network: network, to: to}, nil
}
func (l *LigoloListener) ResetMultiplexer(sess *yamux.Session) error {
// Change the listener session, used in session recovery mechanism
l.sess = sess
conn, err := sess.Open()
if err != nil {
return err
}
l.Conn = conn
return nil
}
func (l *LigoloListener) RedirectAddr() string {
return l.to
}
func (l *LigoloListener) ListenerAddr() string {
return l.addr
}
func (l *LigoloListener) Network() string {
return l.network
}
func (l *LigoloListener) String() string {
return fmt.Sprintf("[#%d] (%s) [Agent] %s => [Proxy] %s", l.ID, l.network, l.addr, l.to)
}
func (l *LigoloListener) Stop() error {
// Open Yamux connection
yamuxConnectionSession, err := l.sess.Open()
if err != nil {
return err
}
ligoloProtocol := protocol.NewEncoderDecoder(yamuxConnectionSession)
// Send close request
closeRequest := protocol.ListenerCloseRequestPacket{ListenerID: l.ID}
if err := ligoloProtocol.Encode(closeRequest); err != nil {
return err
}
// Process close response
if err := ligoloProtocol.Decode(); err != nil {
return err
}
if err := ligoloProtocol.Payload.(*protocol.ListenerCloseResponsePacket).Err; err != false {
return errors.New(ligoloProtocol.Payload.(*protocol.ListenerCloseResponsePacket).ErrString)
}
return nil
}
func (l *LigoloListener) StartRelay() error {
if l.network == "tcp" {
return l.relayTCP()
} else if l.network == "udp" {
return l.relayUDP()
}
return errors.New("invalid network")
}
func (l *LigoloListener) relayTCP() error {
ligoloProtocol := protocol.NewEncoderDecoder(l.Conn)
for {
// Wait for BindResponses
if err := ligoloProtocol.Decode(); err != nil {
if err == io.EOF {
// Listener closed.
logrus.Debug("Listener closed connection (EOF)")
return nil
}
return err
}
// We received a new BindResponse!
response := ligoloProtocol.Payload.(*protocol.ListenerBindReponse)
if err := response.Err; err != false {
return errors.New(response.ErrString)
}
logrus.Debugf("New socket opened : %d", response.SockID)
// relay connection
go func(sockID int32) {
forwarderSession, err := l.sess.Open()
if err != nil {
logrus.Error(err)
return
}
forwarderProtocolEncDec := protocol.NewEncoderDecoder(forwarderSession)
// Request socket access
socketRequestPacket := protocol.ListenerSockRequestPacket{SockID: sockID}
if err := forwarderProtocolEncDec.Encode(socketRequestPacket); err != nil {
logrus.Error(err)
return
}
// Get response back (ListenerSocketResponsePacket)
if err := forwarderProtocolEncDec.Decode(); err != nil {
logrus.Error(err)
return
}
if err := forwarderProtocolEncDec.Payload.(*protocol.ListenerSockResponsePacket).Err; err != false {
logrus.Error(forwarderProtocolEncDec.Payload.(*protocol.ListenerSockResponsePacket).ErrString)
return
}
// If no error, establish TCP conn!
logrus.Debugf("Listener relay established to %s (%s)!", l.to, l.network)
// Dial the "to" target
connFailed := false
lconn, err := net.Dial(l.network, l.to)
if err != nil {
logrus.Error(err)
connFailed = true
}
// Send connect ack (avoid races)
connectionAckPacket := protocol.ListenerSocketConnectionReady{Err: connFailed}
if err := forwarderProtocolEncDec.Encode(connectionAckPacket); err != nil {
logrus.Error(err)
return
}
if connFailed {
return
}
// relay connections
if err := relay.StartRelay(lconn, forwarderSession); err != nil {
logrus.Error(err)
return
}
}(response.SockID)
}
}
func (l *LigoloListener) relayUDP() error {
// Dial the "to" target
lconn, err := net.Dial(l.network, l.to)
if err != nil {
return err
}
// Relay conn
err = relay.StartPacketRelay(lconn, l.Conn)
if err != nil {
return err
}
return nil
}
ligolo-ng-0.7.5/pkg/proxy/netstack/ 0000775 0000000 0000000 00000000000 14735236651 0017204 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/pkg/proxy/netstack/handlers.go 0000664 0000000 0000000 00000010770 14735236651 0021340 0 ustar 00root root 0000000 0000000 package netstack
import (
"io"
"net"
"github.com/hashicorp/yamux"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/adapters/gonet"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/header"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/stack"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/transport/icmp"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/transport/tcp"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/transport/udp"
"github.com/nicocha30/gvisor-ligolo/pkg/waiter"
"github.com/nicocha30/ligolo-ng/pkg/protocol"
"github.com/nicocha30/ligolo-ng/pkg/relay"
"github.com/sirupsen/logrus"
)
// handleICMP process incoming ICMP packets and, depending on the target host status, respond a ICMP ECHO Reply
// Please note that other ICMP messages are not yet supported.
func handleICMP(nstack *stack.Stack, localConn TunConn, yamuxConn *yamux.Session) {
pkt := localConn.GetICMP().Request
v, ok := pkt.Data().PullUp(header.ICMPv4MinimumSize)
if !ok {
return
}
h := header.ICMPv4(v)
if h.Type() == header.ICMPv4Echo {
iph := header.IPv4(pkt.NetworkHeader().Slice())
yamuxConnectionSession, err := yamuxConn.Open()
if err != nil {
logrus.Error(err)
return
}
logrus.Debugf("Checking if %s is alive...\n", iph.DestinationAddress().String())
icmpPacket := protocol.HostPingRequestPacket{Address: iph.DestinationAddress().String()}
protocolEncoder := protocol.NewEncoder(yamuxConnectionSession)
protocolDecoder := protocol.NewDecoder(yamuxConnectionSession)
if err := protocolEncoder.Encode(icmpPacket); err != nil {
logrus.Error(err)
return
}
logrus.Debug("Awaiting ping response...")
if err := protocolDecoder.Decode(); err != nil {
logrus.Error(err)
return
}
reply := protocolDecoder.Payload.(*protocol.HostPingResponsePacket)
if reply.Alive {
logrus.Debug("Host is alive, sending reply")
ProcessICMP(nstack, pkt)
}
}
// Ignore other ICMPs
return
}
func HandlePacket(nstack *stack.Stack, localConn TunConn, yamuxConn *yamux.Session) {
var endpointID stack.TransportEndpointID
var prototransport uint8
var protonet uint8
// Switching part
switch localConn.Protocol {
case tcp.ProtocolNumber:
endpointID = localConn.GetTCP().EndpointID
prototransport = protocol.TransportTCP
case udp.ProtocolNumber:
endpointID = localConn.GetUDP().EndpointID
prototransport = protocol.TransportUDP
case icmp.ProtocolNumber4:
// ICMPs can't be relayed
handleICMP(nstack, localConn, yamuxConn)
return
}
if endpointID.LocalAddress.To4() != (tcpip.Address{}) {
protonet = protocol.Networkv4
} else {
protonet = protocol.Networkv6
}
logrus.Debugf("Got packet source : %s - endpointID : %s:%d", endpointID.RemoteAddress, endpointID.LocalAddress, endpointID.LocalPort)
targetIp := endpointID.LocalAddress.String()
magicNet := net.IPNet{
IP: net.IPv4(240, 0, 0, 0),
Mask: []byte{0xf0, 0x00, 0x00, 0x00},
}
if magicNet.Contains(net.ParseIP(targetIp)) {
logrus.Debug("MagicIP detected, redirecting to agent local machine")
// Magic IP detected
targetIp = "127.0.0.1"
}
yamuxConnectionSession, err := yamuxConn.Open()
if err != nil {
logrus.Error(err)
return
}
connectPacket := protocol.ConnectRequestPacket{
Net: protonet,
Transport: prototransport,
Address: targetIp,
Port: endpointID.LocalPort,
}
protocolEncoder := protocol.NewEncoder(yamuxConnectionSession)
protocolDecoder := protocol.NewDecoder(yamuxConnectionSession)
if err := protocolEncoder.Encode(connectPacket); err != nil {
logrus.Error(err)
return
}
logrus.Debug("Awaiting response...")
if err := protocolDecoder.Decode(); err != nil {
if err != io.EOF {
logrus.Error(err)
}
return
}
reply := protocolDecoder.Payload.(*protocol.ConnectResponsePacket)
if reply.Established {
logrus.Debug("Connection established on remote end!")
go func() {
var wq waiter.Queue
if localConn.IsTCP() {
ep, iperr := localConn.GetTCP().Request.CreateEndpoint(&wq)
if iperr != nil {
logrus.Error(iperr)
localConn.Terminate(true)
return
}
gonetConn := gonet.NewTCPConn(&wq, ep)
go relay.StartRelay(yamuxConnectionSession, gonetConn)
} else if localConn.IsUDP() {
ep, iperr := localConn.GetUDP().Request.CreateEndpoint(&wq)
if iperr != nil {
logrus.Error(iperr)
localConn.Terminate(false)
return
}
gonetConn := gonet.NewUDPConn(nstack, &wq, ep)
go relay.StartRelay(yamuxConnectionSession, gonetConn)
}
}()
} else {
localConn.Terminate(reply.Reset)
}
}
ligolo-ng-0.7.5/pkg/proxy/netstack/icmp.go 0000664 0000000 0000000 00000012737 14735236651 0020475 0 ustar 00root root 0000000 0000000 package netstack
import (
"bytes"
"errors"
"github.com/nicocha30/gvisor-ligolo/pkg/buffer"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/checksum"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/header"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/network/ipv4"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/stack"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/transport/icmp"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/transport/raw"
"github.com/nicocha30/gvisor-ligolo/pkg/waiter"
"github.com/sirupsen/logrus"
)
// icmpResponder handle ICMP packets coming to gvisor/netstack.
// Instead of responding to all ICMPs ECHO by default, we try to
// execute a ping on the Agent, and depending of the response, we
// send a ICMP reply back.
func icmpResponder(s *NetStack) error {
var wq waiter.Queue
rawProto, rawerr := raw.NewEndpoint(s.stack, ipv4.ProtocolNumber, icmp.ProtocolNumber4, &wq)
if rawerr != nil {
return errors.New("could not create raw endpoint")
}
if err := rawProto.Bind(tcpip.FullAddress{}); err != nil {
return errors.New("could not bind raw endpoint")
}
go func() {
we, ch := waiter.NewChannelEntry(waiter.ReadableEvents)
wq.EventRegister(&we)
for {
var buff bytes.Buffer
_, err := rawProto.Read(&buff, tcpip.ReadOptions{})
if _, ok := err.(*tcpip.ErrWouldBlock); ok {
// Wait for data to become available.
select {
case <-ch:
_, err := rawProto.Read(&buff, tcpip.ReadOptions{})
if err != nil {
if _, ok := err.(*tcpip.ErrWouldBlock); ok {
// Oh, a race condition?
continue
} else {
// This is bad.
logrus.Error(err)
return
}
}
iph := header.IPv4(buff.Bytes())
hlen := int(iph.HeaderLength())
if buff.Len() < hlen {
return
}
// Reconstruct a ICMP PacketBuffer from bytes.
view := buffer.MakeWithData(buff.Bytes())
packetbuff := stack.NewPacketBuffer(stack.PacketBufferOptions{
Payload: view,
ReserveHeaderBytes: hlen,
})
packetbuff.NetworkProtocolNumber = ipv4.ProtocolNumber
packetbuff.TransportProtocolNumber = icmp.ProtocolNumber4
packetbuff.NetworkHeader().Consume(hlen)
tunConn := TunConn{
Protocol: icmp.ProtocolNumber4,
Handler: ICMPConn{Request: packetbuff},
}
s.Lock()
if s.pool == nil || s.pool.Closed() {
s.Unlock()
continue // If connPool is closed, ignore packet.
}
if err := s.pool.Add(tunConn); err != nil {
s.Unlock()
logrus.Error(err)
continue // Unknown error, continue...
}
s.Unlock()
}
}
}
}()
return nil
}
// ProcessICMP send back a ICMP echo reply from after receiving a echo request.
// This code come mostly from pkg/tcpip/network/ipv4/icmp.go
func ProcessICMP(nstack *stack.Stack, pkt stack.PacketBufferPtr) {
// (gvisor) pkg/tcpip/network/ipv4/icmp.go:174 - handleICMP
// ICMP packets don't have their TransportHeader fields set. See
// icmp/protocol.go:protocol.Parse for a full explanation.
v, ok := pkt.Data().PullUp(header.ICMPv4MinimumSize)
if !ok {
return
}
h := header.ICMPv4(v)
// Ligolo-ng: not sure why, but checksum is invalid here.
/*
// Only do in-stack processing if the checksum is correct.
if checksum.Checksum(h, pkt.Data().Checksum()) != 0xffff {
return
}
*/
iph := header.IPv4(pkt.NetworkHeader().Slice())
var newOptions header.IPv4Options
// TODO(b/112892170): Meaningfully handle all ICMP types.
switch h.Type() {
case header.ICMPv4Echo:
replyData := stack.PayloadSince(pkt.TransportHeader())
defer replyData.Release()
ipHdr := header.IPv4(pkt.NetworkHeader().Slice())
localAddressBroadcast := pkt.NetworkPacketInfo.LocalAddressBroadcast
// It's possible that a raw socket expects to receive this.
pkt = nil
// Take the base of the incoming request IP header but replace the options.
replyHeaderLength := uint8(header.IPv4MinimumSize + len(newOptions))
replyIPHdrView := buffer.NewView(int(replyHeaderLength))
replyIPHdrView.Write(iph[:header.IPv4MinimumSize])
replyIPHdrView.Write(newOptions)
replyIPHdr := header.IPv4(replyIPHdrView.AsSlice())
replyIPHdr.SetHeaderLength(replyHeaderLength)
// As per RFC 1122 section 3.2.1.3, when a host sends any datagram, the IP
// source address MUST be one of its own IP addresses (but not a broadcast
// or multicast address).
localAddr := ipHdr.DestinationAddress()
if localAddressBroadcast || header.IsV4MulticastAddress(localAddr) {
localAddr = tcpip.Address{}
}
r, err := nstack.FindRoute(1, localAddr, ipHdr.SourceAddress(), ipv4.ProtocolNumber, false /* multicastLoop */)
if err != nil {
// If we cannot find a route to the destination, silently drop the packet.
return
}
defer r.Release()
replyIPHdr.SetSourceAddress(r.LocalAddress())
replyIPHdr.SetDestinationAddress(r.RemoteAddress())
replyIPHdr.SetTTL(r.DefaultTTL())
replyICMPHdr := header.ICMPv4(replyData.AsSlice())
replyICMPHdr.SetType(header.ICMPv4EchoReply)
replyICMPHdr.SetChecksum(0)
replyICMPHdr.SetChecksum(^checksum.Checksum(replyData.AsSlice(), 0))
replyBuf := buffer.MakeWithView(replyIPHdrView)
replyBuf.Append(replyData.Clone())
replyPkt := stack.NewPacketBuffer(stack.PacketBufferOptions{
ReserveHeaderBytes: int(r.MaxHeaderLength()),
Payload: replyBuf,
})
replyPkt.TransportProtocolNumber = header.ICMPv4ProtocolNumber
if err := r.WriteHeaderIncludedPacket(replyPkt); err != nil {
logrus.Error(err)
return
}
}
}
ligolo-ng-0.7.5/pkg/proxy/netstack/pool.go 0000664 0000000 0000000 00000001740 14735236651 0020506 0 ustar 00root root 0000000 0000000 package netstack
import (
"errors"
"sync"
)
type ConnPool struct {
CloseChan chan interface{}
Pool chan TunConn
sync.Mutex
}
func NewConnPool(size int) ConnPool {
return ConnPool{CloseChan: make(chan interface{}), Pool: make(chan TunConn, size)}
}
func (p *ConnPool) Add(packet TunConn) error {
p.Lock()
defer p.Unlock()
select {
case <-p.CloseChan:
return errors.New("pool is closed")
default:
p.Pool <- packet
}
return nil
}
func (p *ConnPool) Close() error {
p.Lock()
defer p.Unlock()
select {
case <-p.CloseChan:
return errors.New("pool is already closed")
default:
close(p.CloseChan)
close(p.Pool)
p.Pool = nil
}
return nil
}
func (p *ConnPool) Closed() bool {
select {
case <-p.CloseChan:
return true
default:
return false
}
}
func (p *ConnPool) Get() (TunConn, error) {
p.Lock()
defer p.Unlock()
select {
case <-p.CloseChan:
return TunConn{}, errors.New("pool is closed")
case tunconn := <-p.Pool:
return tunconn, nil
}
}
ligolo-ng-0.7.5/pkg/proxy/netstack/stack.go 0000664 0000000 0000000 00000013641 14735236651 0020645 0 ustar 00root root 0000000 0000000 package netstack
import (
"errors"
"fmt"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/header"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/network/ipv4"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/network/ipv6"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/stack"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/transport/icmp"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/transport/tcp"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/transport/udp"
"github.com/nicocha30/ligolo-ng/pkg/proxy/netstack/tun"
"github.com/sirupsen/logrus"
"sync"
)
type TunConn struct {
Protocol tcpip.TransportProtocolNumber
Handler interface{}
}
// IsTCP check if the current TunConn is TCP
func (t TunConn) IsTCP() bool {
return t.Protocol == tcp.ProtocolNumber
}
// GetTCP returns the handler as a TCPConn
func (t TunConn) GetTCP() TCPConn {
return t.Handler.(TCPConn)
}
// IsUDP check if the current TunConn is UDP
func (t TunConn) IsUDP() bool {
return t.Protocol == udp.ProtocolNumber
}
// GetUDP returns the handler as a UDPConn
func (t TunConn) GetUDP() UDPConn {
return t.Handler.(UDPConn)
}
// IsICMP check if the current TunConn is ICMP
func (t TunConn) IsICMP() bool {
return t.Protocol == icmp.ProtocolNumber4
}
// GetICMP returns the handler as a ICMPConn
func (t TunConn) GetICMP() ICMPConn {
return t.Handler.(ICMPConn)
}
// Terminate is call when connections need to be terminated. For now, this is only useful for TCP connections
func (t TunConn) Terminate(reset bool) {
if t.IsTCP() {
t.GetTCP().Request.Complete(reset)
}
}
// TCPConn represents a TCP Forwarder connection
type TCPConn struct {
EndpointID stack.TransportEndpointID
Request *tcp.ForwarderRequest
}
// UDPConn represents a UDP Forwarder connection
type UDPConn struct {
EndpointID stack.TransportEndpointID
Request *udp.ForwarderRequest
}
// ICMPConn represents a ICMP Packet Buffer
type ICMPConn struct {
Request stack.PacketBufferPtr
}
// NetStack is the structure used to store the connection pool and the gvisor network stack
type NetStack struct {
pool *ConnPool
stack *stack.Stack
iface *tun.TunInterface
sync.Mutex
}
type StackSettings struct {
TunName string
MaxInflight int
}
// NewStack registers a new GVisor Network Stack
func NewStack(settings StackSettings, connPool *ConnPool) (*NetStack, error) {
ns := NetStack{pool: connPool}
if _, err := ns.new(settings); err != nil {
return nil, err
}
return &ns, nil
}
// GetStack returns the current Gvisor stack.Stack object
func (s *NetStack) GetStack() *stack.Stack {
return s.stack
}
// SetConnPool is used to change the current connPool. It must be used after switching Ligolo agents
func (s *NetStack) SetConnPool(connPool *ConnPool) {
s.Lock()
s.pool = connPool
s.Unlock()
}
// New creates a new userland network stack (using Gvisor) that listen on a tun interface.
func (s *NetStack) new(stackSettings StackSettings) (*stack.Stack, error) {
// Create a new gvisor userland network stack.
ns := stack.New(stack.Options{
NetworkProtocols: []stack.NetworkProtocolFactory{
ipv4.NewProtocol,
ipv6.NewProtocol,
},
TransportProtocols: []stack.TransportProtocolFactory{
tcp.NewProtocol,
udp.NewProtocol,
icmp.NewProtocol4,
icmp.NewProtocol6,
},
HandleLocal: false,
})
s.stack = ns
// Gvisor Hack: Disable ICMP handling.
ns.SetICMPLimit(0)
ns.SetICMPBurst(0)
// Forward TCP connections
tcpHandler := tcp.NewForwarder(ns, 0, stackSettings.MaxInflight, func(request *tcp.ForwarderRequest) {
tcpConn := TCPConn{
EndpointID: request.ID(),
Request: request,
}
s.Lock()
defer s.Unlock()
if s.pool == nil || s.pool.Closed() {
return // If connPool is closed, ignore packet.
}
if err := s.pool.Add(TunConn{
tcp.ProtocolNumber,
tcpConn,
}); err != nil {
logrus.Error(err)
}
})
// Forward UDP connections
udpHandler := udp.NewForwarder(ns, func(request *udp.ForwarderRequest) {
udpConn := UDPConn{
EndpointID: request.ID(),
Request: request,
}
s.Lock()
defer s.Unlock()
if s.pool == nil || s.pool.Closed() {
return // If connPool is closed, ignore packet.
}
if err := s.pool.Add(TunConn{
udp.ProtocolNumber,
udpConn,
}); err != nil {
logrus.Error(err)
}
})
// Register forwarders
ns.SetTransportProtocolHandler(tcp.ProtocolNumber, tcpHandler.HandlePacket)
ns.SetTransportProtocolHandler(udp.ProtocolNumber, udpHandler.HandlePacket)
iface, err := tun.New(stackSettings.TunName)
if err != nil {
return nil, fmt.Errorf("unable to open tun interface '%s' (tun.New %v), make sure you've created the tun interface and that it's not in use", stackSettings.TunName, err)
}
s.iface = iface
// Create a new NIC
if err := ns.CreateNIC(1, iface.LinkEP); err != nil {
return nil, errors.New(err.String())
}
// Start a endpoint that will reply to ICMP echo queries
if err := icmpResponder(s); err != nil {
return nil, err
}
// Allow all routes by default
ns.SetRouteTable([]tcpip.Route{
{
Destination: header.IPv4EmptySubnet,
NIC: 1,
},
{
Destination: header.IPv6EmptySubnet,
NIC: 1,
},
})
// Enable forwarding
ns.SetForwardingDefaultAndAllNICs(ipv4.ProtocolNumber, false)
ns.SetForwardingDefaultAndAllNICs(ipv6.ProtocolNumber, false)
// Enable TCP SACK
nsacks := tcpip.TCPSACKEnabled(false)
ns.SetTransportProtocolOption(tcp.ProtocolNumber, &nsacks)
// Disable SYN-Cookies, as this can mess with nmap scans
synCookies := tcpip.TCPAlwaysUseSynCookies(false)
ns.SetTransportProtocolOption(tcp.ProtocolNumber, &synCookies)
// Allow packets from all sources/destinations
ns.SetPromiscuousMode(1, true)
ns.SetSpoofing(1, true)
return ns, nil
}
func (n *NetStack) Interface() *tun.TunInterface {
return n.iface
}
func (n *NetStack) Close() {
if n.stack != nil {
n.stack.Destroy()
}
if n.iface != nil {
err := n.iface.Close()
if err != nil {
logrus.Warn("NetStack.Close() => iface close err: ", err)
}
}
}
ligolo-ng-0.7.5/pkg/proxy/netstack/tun/ 0000775 0000000 0000000 00000000000 14735236651 0020012 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/pkg/proxy/netstack/tun/gvisor.go 0000664 0000000 0000000 00000001666 14735236651 0021663 0 ustar 00root root 0000000 0000000 //go:build linux
package tun
import (
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/link/fdbased"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/link/rawfile"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/link/tun"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/stack"
"golang.org/x/sys/unix"
)
type TunInterface struct {
LinkEP stack.LinkEndpoint
fd int
name string
}
func New(tunName string) (*TunInterface, error) {
tunIface := TunInterface{}
mtu, err := rawfile.GetMTU(tunName)
if err != nil {
return nil, err
}
fd, err := tun.Open(tunName)
if err != nil {
return nil, err
}
tunIface.fd = fd
tunIface.name = tunName
linkEP, err := fdbased.New(&fdbased.Options{FDs: []int{fd}, MTU: mtu})
if err != nil {
return nil, err
}
tunIface.LinkEP = linkEP
return &tunIface, nil
}
func (t TunInterface) Name() (string, error) {
return t.name, nil
}
func (t *TunInterface) Close() error {
return unix.Close(t.fd)
}
ligolo-ng-0.7.5/pkg/proxy/netstack/tun/netlink_linux.go 0000664 0000000 0000000 00000004121 14735236651 0023222 0 ustar 00root root 0000000 0000000 //go:build linux
package tun
import (
"errors"
"github.com/vishvananda/netlink"
"net"
)
type Tun struct {
Tap netlink.Link
}
func CreateTUN(name string) error {
tun := &Tun{}
la := netlink.NewLinkAttrs()
la.Name = name
tun.Tap = &netlink.Tuntap{
LinkAttrs: la,
Mode: netlink.TUNTAP_MODE_TUN,
}
if err := netlink.LinkAdd(tun.Tap); err != nil {
return err
}
if err := netlink.LinkSetUp(tun.Tap); err != nil {
return err
}
return nil
}
func (t *Tun) AddRoute(network string) error {
_, ipnet, err := net.ParseCIDR(network)
if err != nil {
return err
}
if err := netlink.RouteAdd(&netlink.Route{
LinkIndex: t.Tap.Attrs().Index,
Dst: ipnet,
}); err != nil {
return err
}
return nil
}
func (t *Tun) DelRoute(network string) error {
_, ipnet, err := net.ParseCIDR(network)
if err != nil {
return err
}
if err := netlink.RouteDel(&netlink.Route{
LinkIndex: t.Tap.Attrs().Index,
Dst: ipnet,
}); err != nil {
return err
}
return nil
}
func (t *Tun) Destroy() error {
return netlink.LinkDel(t.Tap)
}
func (t *Tun) Name() string {
return t.Tap.Attrs().Name
}
func GetTunByName(name string) (Tun, error) {
link, err := netlink.LinkByName(name)
if err != nil {
return Tun{}, err
}
return Tun{
Tap: link,
}, nil
}
func GetTunByRoute(route string) (Tun, error) {
tuns, err := GetTunTaps()
if err != nil {
return Tun{}, err
}
for _, tun := range tuns {
if _, ok := tun.Routes()[route]; ok {
return tun, nil
}
}
return Tun{}, errors.New("could not find interface belonging to route")
}
func (t *Tun) Routes() map[string]netlink.Route {
routes, err := netlink.RouteList(t.Tap, netlink.FAMILY_ALL)
if err != nil {
return nil
}
tapRoutes := make(map[string]netlink.Route)
for _, route := range routes {
tapRoutes[route.Dst.String()] = route
}
return tapRoutes
}
func GetTunTaps() ([]Tun, error) {
tuns, err := netlink.LinkList()
if err != nil {
return nil, err
}
var tuntaps []Tun
for _, link := range tuns {
if link.Type() == "tuntap" {
tuntaps = append(tuntaps, Tun{
Tap: link,
})
}
}
return tuntaps, nil
}
ligolo-ng-0.7.5/pkg/proxy/netstack/tun/wireguard.go 0000664 0000000 0000000 00000001060 14735236651 0022327 0 ustar 00root root 0000000 0000000 //go:build !linux
// +build !linux
package tun
import (
"golang.zx2c4.com/wireguard/tun"
)
type TunInterface struct {
LinkEP *RWEndpoint
device tun.Device
}
func New(tunName string) (*TunInterface, error) {
tunIface := TunInterface{}
wgtun, err := tun.CreateTUN(tunName, 1500)
if err != nil {
return nil, err
}
tunIface.LinkEP = NewRWEndpoint(wgtun, 1500)
tunIface.device = wgtun
return &tunIface, nil
}
func (i TunInterface) Name() (string, error) {
return i.device.Name()
}
func (i TunInterface) Close() error {
return i.device.Close()
}
ligolo-ng-0.7.5/pkg/proxy/netstack/tun/wireguard_darwin.go 0000664 0000000 0000000 00000000036 14735236651 0023675 0 ustar 00root root 0000000 0000000 package tun
const offset = 4
ligolo-ng-0.7.5/pkg/proxy/netstack/tun/wireguard_ep.go 0000664 0000000 0000000 00000006364 14735236651 0023027 0 ustar 00root root 0000000 0000000 //go:build !linux
// +build !linux
package tun
import (
"github.com/nicocha30/gvisor-ligolo/pkg/buffer"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/header"
"github.com/nicocha30/gvisor-ligolo/pkg/tcpip/stack"
wgtun "golang.zx2c4.com/wireguard/tun"
)
type RWEndpoint struct {
wgdev wgtun.Device
dispatcher stack.NetworkDispatcher
mtu uint32
}
func NewRWEndpoint(dev wgtun.Device, mtu uint32) *RWEndpoint {
return &RWEndpoint{
wgdev: dev,
mtu: mtu,
}
}
// MTU implements stack.LinkEndpoint.
func (m *RWEndpoint) MTU() uint32 {
return m.mtu
}
// Capabilities implements stack.LinkEndpoint.
func (m *RWEndpoint) Capabilities() stack.LinkEndpointCapabilities {
return stack.CapabilityNone
}
// MaxHeaderLength implements stack.LinkEndpoint.
func (m *RWEndpoint) MaxHeaderLength() uint16 {
return 0
}
// LinkAddress implements stack.LinkEndpoint.
func (m *RWEndpoint) LinkAddress() tcpip.LinkAddress {
return ""
}
// Attach implements stack.LinkEndpoint.
func (m *RWEndpoint) Attach(dispatcher stack.NetworkDispatcher) {
m.dispatcher = dispatcher
go m.dispatchLoop()
}
func (m *RWEndpoint) dispatchLoop() {
for {
packet := make([]byte, m.mtu)
// Complying with macOS bullshit - I bought a Mac Mini to solve this nonsense. @phocean you lied, it sucks
n, err := m.wgdev.Read(packet, offset)
if err != nil {
break
}
if n > int(m.mtu) {
// Not sure why it happens, discard packet - https://github.com/nicocha30/ligolo-ng/issues/54
continue
}
if !m.IsAttached() {
continue
}
pkb := stack.NewPacketBuffer(stack.PacketBufferOptions{
Payload: buffer.MakeWithData(packet[offset : n+offset]),
})
switch header.IPVersion(packet[offset:]) {
case header.IPv4Version:
m.dispatcher.DeliverNetworkPacket(header.IPv4ProtocolNumber, pkb)
case header.IPv6Version:
m.dispatcher.DeliverNetworkPacket(header.IPv6ProtocolNumber, pkb)
}
}
}
// IsAttached implements stack.LinkEndpoint.
func (m *RWEndpoint) IsAttached() bool {
return m.dispatcher != nil
}
// WritePackets writes outbound packets
func (m *RWEndpoint) WritePackets(pkts stack.PacketBufferList) (int, tcpip.Error) {
n := 0
for _, pkt := range pkts.AsSlice() {
if err := m.WritePacket(pkt); err != nil {
break
}
n++
}
return n, nil
}
// WritePacket writes outbound packets
func (m *RWEndpoint) WritePacket(pkt stack.PacketBufferPtr) tcpip.Error {
var buf buffer.Buffer
pktBuf := pkt.ToBuffer()
buf.Merge(&pktBuf)
// Complying with macOS bullshit
offsetBuf := make([]byte, offset)
if _, err := m.wgdev.Write(append(offsetBuf, buf.Flatten()...), offset); err != nil {
return &tcpip.ErrInvalidEndpointState{}
}
return nil
}
// Wait implements stack.LinkEndpoint.Wait.
func (m *RWEndpoint) Wait() {}
// ARPHardwareType implements stack.LinkEndpoint.ARPHardwareType.
func (*RWEndpoint) ARPHardwareType() header.ARPHardwareType {
return header.ARPHardwareNone
}
// AddHeader implements stack.LinkEndpoint.AddHeader.
func (*RWEndpoint) AddHeader(pkt stack.PacketBufferPtr) {
}
// WriteRawPacket implements stack.LinkEndpoint.
func (*RWEndpoint) WriteRawPacket(stack.PacketBufferPtr) tcpip.Error {
return &tcpip.ErrNotSupported{}
}
func (*RWEndpoint) ParseHeader(stack.PacketBufferPtr) bool { return true }
ligolo-ng-0.7.5/pkg/proxy/netstack/tun/wireguard_freebsd.go 0000664 0000000 0000000 00000000036 14735236651 0024023 0 ustar 00root root 0000000 0000000 package tun
const offset = 4
ligolo-ng-0.7.5/pkg/proxy/netstack/tun/wireguard_openbsd.go 0000664 0000000 0000000 00000000036 14735236651 0024043 0 ustar 00root root 0000000 0000000 package tun
const offset = 4
ligolo-ng-0.7.5/pkg/proxy/netstack/tun/wireguard_windows.go 0000664 0000000 0000000 00000000036 14735236651 0024103 0 ustar 00root root 0000000 0000000 package tun
const offset = 0
ligolo-ng-0.7.5/pkg/proxy/proxy.go 0000664 0000000 0000000 00000002520 14735236651 0017077 0 ustar 00root root 0000000 0000000 package proxy
import (
"context"
"github.com/hashicorp/yamux"
"github.com/nicocha30/ligolo-ng/pkg/proxy/netstack"
"github.com/sirupsen/logrus"
)
const (
MaxConnectionHandler = 4096
)
type LigoloTunnel struct {
nstack *netstack.NetStack
}
func NewLigoloTunnel(stackSettings netstack.StackSettings) (*LigoloTunnel, error) {
// Create a new stack, but without connPool.
// The connPool will be created when using the *start* command
nstack, err := netstack.NewStack(stackSettings, nil)
if err != nil {
return nil, err
}
return &LigoloTunnel{nstack: nstack}, nil
}
func (t *LigoloTunnel) HandleSession(session *yamux.Session, ctx context.Context) {
// Create a new, empty, connpool to store connections/packets
connPool := netstack.NewConnPool(MaxConnectionHandler)
t.nstack.SetConnPool(&connPool)
// Cleanup pool if channel is closed
defer connPool.Close()
for {
select {
case <-ctx.Done():
t.Close()
return
case <-connPool.CloseChan: // pool closed, we can't process packets!
logrus.Infof("Connection pool closed")
t.Close()
return
case tunnelPacket := <-connPool.Pool: // Process connections/packets
go netstack.HandlePacket(t.nstack.GetStack(), tunnelPacket, session)
}
}
}
func (t *LigoloTunnel) GetStack() *netstack.NetStack {
return t.nstack
}
func (t *LigoloTunnel) Close() {
t.nstack.Close()
}
ligolo-ng-0.7.5/pkg/relay/ 0000775 0000000 0000000 00000000000 14735236651 0015323 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/pkg/relay/relay.go 0000664 0000000 0000000 00000001156 14735236651 0016771 0 ustar 00root root 0000000 0000000 package relay
import (
"io"
"net"
)
func relay(src net.Conn, dst net.Conn, stop chan error, closeOnError bool) {
_, err := io.Copy(dst, src)
if closeOnError {
dst.Close()
src.Close()
}
stop <- err
return
}
func StartRelay(src net.Conn, dst net.Conn) error {
stop := make(chan error, 2)
go relay(src, dst, stop, true)
go relay(dst, src, stop, true)
select {
case err := <-stop:
return err
}
}
func StartPacketRelay(src net.Conn, dst net.Conn) error {
stop := make(chan error, 2)
go relay(src, dst, stop, false)
go relay(dst, src, stop, false)
select {
case err := <-stop:
return err
}
}
ligolo-ng-0.7.5/pkg/utils/ 0000775 0000000 0000000 00000000000 14735236651 0015347 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/pkg/utils/codenames/ 0000775 0000000 0000000 00000000000 14735236651 0017305 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/pkg/utils/codenames/adjectives.go 0000664 0000000 0000000 00000011574 14735236651 0021765 0 ustar 00root root 0000000 0000000 package codenames
// https://raw.githubusercontent.com/lucasepe/codename
var adjectives = []string{
"able",
"above",
"absolute",
"accepted",
"accurate",
"active",
"actual",
"adapted",
"adapting",
"adequate",
"adjusted",
"advanced",
"alert",
"alive",
"allowed",
"allowing",
"amazed",
"amazing",
"amusing",
"apparent",
"artistic",
"assured",
"assuring",
"awaited",
"awake",
"aware",
"balanced",
"becoming",
"beloved",
"better",
"big",
"blessed",
"bold",
"boss",
"brave",
"brief",
"bright",
"bursting",
"busy",
"calm",
"capable",
"capital",
"careful",
"caring",
"casual",
"causal",
"central",
"certain",
"champion",
"charmed",
"charming",
"cheerful",
"chief",
"choice",
"civil",
"classic",
"clean",
"clear",
"clever",
"climbing",
"close",
"closing",
"coherent",
"comic",
"communal",
"complete",
"composed",
"concise",
"concrete",
"content",
"cool",
"correct",
"cosmic",
"crack",
"creative",
"credible",
"crisp",
"crucial",
"cuddly",
"cunning",
"curious",
"current",
"cute",
"daring",
"darling",
"dashing",
"dear",
"decent",
"deciding",
"deep",
"definite",
"delicate",
"desired",
"destined",
"devoted",
"direct",
"discrete",
"distinct",
"diverse",
"divine",
"dominant",
"driven",
"driving",
"dynamic",
"eager",
"easy",
"electric",
"elegant",
"emerging",
"eminent",
"enabled",
"enabling",
"endless",
"engaged",
"engaging",
"enhanced",
"enjoyed",
"enormous",
"enough",
"epic",
"equal",
"equipped",
"eternal",
"ethical",
"evident",
"evolved",
"evolving",
"exact",
"excited",
"exciting",
"exotic",
"expert",
"factual",
"fair",
"faithful",
"famous",
"fancy",
"fast",
"feasible",
"fine",
"finer",
"firm",
"first",
"fitting",
"fleet",
"flexible",
"flowing",
"fluent",
"flying",
"fond",
"frank",
"free",
"fresh",
"full",
"fun",
"funky",
"funny",
"game",
"generous",
"gentle",
"genuine",
"giving",
"glad",
"glorious",
"glowing",
"golden",
"good",
"gorgeous",
"grand",
"grateful",
"great",
"growing",
"grown",
"guided",
"guiding",
"handy",
"happy",
"hardy",
"harmless",
"healthy",
"helped",
"helpful",
"helping",
"heroic",
"hip",
"holy",
"honest",
"hopeful",
"hot",
"huge",
"humane",
"humble",
"humorous",
"ideal",
"immense",
"immortal",
"immune",
"improved",
"included",
"infinite",
"informed",
"innocent",
"inspired",
"integral",
"intense",
"intent",
"internal",
"intimate",
"inviting",
"joint",
"just",
"keen",
"key",
"kind",
"knowing",
"known",
"large",
"lasting",
"leading",
"learning",
"legal",
"legible",
"lenient",
"liberal",
"light",
"liked",
"literate",
"live",
"living",
"logical",
"loved",
"loving",
"loyal",
"lucky",
"magical",
"magnetic",
"main",
"major",
"many",
"massive",
"master",
"mature",
"maximum",
"measured",
"meet",
"merry",
"mighty",
"mint",
"model",
"modern",
"modest",
"moral",
"more",
"moved",
"moving",
"musical",
"mutual",
"national",
"native",
"natural",
"nearby",
"neat",
"needed",
"neutral",
"next",
"nice",
"noble",
"normal",
"notable",
"noted",
"novel",
"obliging",
"open",
"optimal",
"optimum",
"organic",
"oriented",
"outgoing",
"patient",
"peaceful",
"perfect",
"picked",
"pleasant",
"pleased",
"pleasing",
"poetic",
"polished",
"polite",
"popular",
"positive",
"possible",
"powerful",
"precious",
"precise",
"premium",
"prepared",
"present",
"pretty",
"primary",
"prime",
"pro",
"probable",
"profound",
"promoted",
"prompt",
"proper",
"proud",
"proven",
"pumped",
"pure",
"quality",
"quick",
"quiet",
"rapid",
"rare",
"rational",
"ready",
"real",
"refined",
"regular",
"related",
"relative",
"relaxed",
"relaxing",
"relevant",
"relieved",
"renewed",
"renewing",
"resolved",
"rested",
"rich",
"right",
"robust",
"romantic",
"ruling",
"sacred",
"safe",
"saved",
"saving",
"secure",
"select",
"selected",
"sensible",
"settled",
"settling",
"sharing",
"sharp",
"shining",
"simple",
"sincere",
"singular",
"skilled",
"smart",
"smashing",
"smiling",
"smooth",
"social",
"solid",
"sought",
"sound",
"special",
"splendid",
"square",
"stable",
"star",
"steady",
"sterling",
"still",
"stirred",
"stirring",
"striking",
"strong",
"stunning",
"subtle",
"suitable",
"suited",
"summary",
"sunny",
"super",
"superb",
"supreme",
"sweeping",
"sweet",
"talented",
"teaching",
"tender",
"thankful",
"thorough",
"tidy",
"tight",
"together",
"tolerant",
"top",
"topical",
"tops",
"touched",
"touching",
"tough",
"true",
"trusted",
"trusting",
"trusty",
"ultimate",
"unbiased",
"uncommon",
"unique",
"upward",
"usable",
"useful",
"valid",
"valued",
"vast",
"verified",
"viable",
"vital",
"wanted",
"warm",
"wealthy",
"welcome",
"welcomed",
"well",
"whole",
"willing",
"winning",
"wired",
"wise",
"witty",
"wondrous",
"workable",
"working",
"worthy",
}
ligolo-ng-0.7.5/pkg/utils/codenames/codenames.go 0000664 0000000 0000000 00000003244 14735236651 0021575 0 ustar 00root root 0000000 0000000 package codenames
import (
"bytes"
"fmt"
"math/rand"
crypto_rand "crypto/rand"
"encoding/binary"
)
// Credits to https://github.com/lucasepe/codename
// NewCryptoSeed returns a crypto level random numbers generator seed.
// It returns an error and a seed equals to -1 if the underlying system call fails.
func NewCryptoSeed() (int64, error) {
var b [8]byte
_, err := crypto_rand.Read(b[:])
if err != nil {
return -1, fmt.Errorf("cannot seed math/rand package with Crypto RNG: %w", err)
}
seed := int64(binary.LittleEndian.Uint64(b[:]))
return seed, nil
}
// DefaultRNG returns a new pseudo-random source
// seeded by a crypto level seed.
func DefaultRNG() (*rand.Rand, error) {
seed, err := NewCryptoSeed()
if err != nil {
return nil, err
}
rng := rand.New(rand.NewSource(seed))
return rng, nil
}
// Generate generates and returns a random hero name.
func Generate(rng *rand.Rand) string {
res := fmt.Sprintf("%s%s", randomAdjective(rng), randomNoun(rng))
if len(res) > 15 {
return res[:15]
}
return res
}
// randomAdjective returns a random adjective from a list of adjectives.
func randomAdjective(rng *rand.Rand) string {
return adjectives[rng.Intn(len(adjectives))]
}
// randomNoun returns a random noun from a list of nouns.
func randomNoun(rng *rand.Rand) string {
return nouns[rng.Intn(len(nouns))]
}
// randomToken creates and builds random token
func randomToken(rng *rand.Rand, size int) string {
hex := []byte{
'0', '1', '2', '3',
'4', '5', '6', '7',
'8', '9', 'a', 'b',
'c', 'd', 'e', 'f',
}
var buffer bytes.Buffer
for i := 0; i < size; i++ {
index := rng.Intn(len(hex))
buffer.WriteByte(hex[index])
}
return buffer.String()
}
ligolo-ng-0.7.5/pkg/utils/codenames/nouns.go 0000664 0000000 0000000 00000022652 14735236651 0021005 0 ustar 00root root 0000000 0000000 package codenames
// Mostly from https://github.com/lucasepe/codename
var nouns = []string{
"abomination",
"abyss",
"agent",
"amethyst",
"amphibian",
"andromeda",
"annihilus",
"anole",
"anthem",
"alchemist",
"apocalypse",
"aquagirl",
"aquaman",
"arachne",
"arcade",
"arcana",
"archangel",
"arclight",
"ares",
"argent",
"arisia",
"armadillo",
"armor",
"armory",
"arrowette",
"arsenal",
"arsenic",
"artemis",
"artiee",
"asgardian",
"aspen",
"atlas",
"atom",
"atomic",
"avalanche",
"azazel",
"azrael",
"aztec",
"baguette",
"crepe",
"tartiflette",
"fondue",
"bourguignon",
"rafale",
"mirage",
"napoleon",
"cotedeboeuf",
"concorde",
"cassoulet",
"escargots",
"vin",
"pinard",
"absinthe",
"calvados",
"pastis",
"cognac",
"cotedurhone",
"armagnac",
"genepi",
"cidre",
"champagne",
"raclette",
"petanque",
"grenouilles",
"comte",
"brillat",
"cantal",
"picodon",
"pelardon",
"chevre",
"camembert",
"brie",
"reblochon",
"munster",
"roquefort",
"bouillabaisse",
"piedspaquets",
"navette",
"tapenade",
"aioli",
"calisson",
"pompealhuile",
"ratatouille",
"pistou",
"fougasse",
"croissants",
"surmulot",
"painsuisse",
"galette",
"huitres",
"ballistic",
"banshee",
"barb",
"barbarella",
"baroness",
"barracuda",
"bastion",
"batgirl",
"batman",
"battle",
"batwoman",
"bazooka",
"beak",
"beast",
"bebop",
"becatron",
"bedlam",
"beef",
"beetle",
"bella",
"belphegor",
"bengal",
"bette",
"binary",
"bionic",
"bishop",
"bizarro",
"black",
"blackbat",
"blackheart",
"blackout",
"blade",
"blastaar",
"blindfold",
"blink",
"blitzkrieg",
"blizzard",
"blob",
"blockbuster",
"blok",
"bloke",
"blonde",
"bloodaxe",
"bloodberry",
"bloodscream",
"bloodstorm",
"bloodstrike",
"bloodhound",
"bloom",
"blossom",
"blue",
"bluestreak",
"blur",
"boom",
"boomer",
"boomerang",
"booster",
"bounty",
"bubbles",
"bug",
"bulldozer",
"bulleteer",
"bulletgirl",
"bullseye",
"bumblebee",
"burka",
"burnout",
"bushwacker",
"buttercup",
"butterfly",
"cable",
"calamity",
"calendar",
"caliban",
"callisto",
"calypso",
"cammi",
"cammy",
"cannonball",
"captain",
"cardiac",
"caretaker",
"carnage",
"cat",
"catseye",
"catwoman",
"cerebro",
"cha",
"chameleon",
"changeling",
"chase",
"chat",
"cherry",
"chimera",
"choice",
"chronomancer",
"circuit",
"cleopatra",
"cloak",
"clobber",
"clobberella",
"clover",
"coagula",
"cobra",
"cobweb",
"colleen",
"colossus",
"colt",
"comedian",
"comet",
"conan",
"constrictor",
"contessa",
"controller",
"copperhead",
"copycat",
"cornelius",
"corsair",
"cosmo",
"cottonmouth",
"countess",
"crane",
"crazy",
"crossbones",
"crackmap",
"crystal",
"cyber",
"cybergirl",
"cyblade",
"cyborg",
"cyclone",
"cyclops",
"cypher",
"cyslab",
"dagger",
"daredevil",
"darkhawk",
"darkstar",
"darwin",
"dawn",
"dawnstar",
"dazzler",
"dead",
"deadpool",
"death",
"deathbird",
"deathcry",
"deathlok",
"deathstrike",
"deep",
"defenders",
"demogoblin",
"destine",
"destiny",
"devastator",
"diablo",
"diamond",
"diamondback",
"doctor",
"doll",
"dollar",
"dolphin",
"domino",
"donatello",
"doomsday",
"doorman",
"doppelganger",
"dormammu",
"dove",
"dracula",
"dragonfly",
"dragonna",
"drax",
"dream",
"dumb",
"dusk",
"dust",
"dyna",
"dynamite",
"earthquake",
"echo",
"ego",
"electra",
"electro",
"elektra",
"elite",
"elixir",
"elongated",
"empath",
"empowered",
"empress",
"enchantress",
"energizer",
"epoch",
"eradicator",
"eternals",
"eternity",
"excalibur",
"exodus",
"expediter",
"ezekiel",
"fairchild",
"faith",
"falcon",
"fallen",
"famine",
"fantomah",
"fantomette",
"fantomex",
"fathom",
"fenris",
"feral",
"fever",
"fire",
"firebird",
"firebrand",
"firedrake",
"firefly",
"firelord",
"firestar",
"firestorm",
"fixer",
"flaberella",
"flamebird",
"flash",
"flatman",
"flint",
"flora",
"forearm",
"forerunner",
"forge",
"france",
"freak",
"free",
"freefall",
"frenzy",
"fury",
"galactus",
"galvatron",
"gambit",
"gamora",
"gangbuster",
"ganymede",
"garganta",
"gargoyle",
"gargoyles",
"gateway",
"gauntlet",
"genesis",
"ghost",
"gladiator",
"glitter",
"glory",
"goliath",
"grandmaster",
"graphics",
"gravity",
"greymalkin",
"groot",
"guardian",
"guardsmen",
"gunslinger",
"gwen",
"hairball",
"hammerhead",
"hardball",
"harpoon",
"haven",
"havok",
"hawk",
"hawkeye",
"hawkgirl",
"hawkman",
"hawkwoman",
"heather",
"hellboy",
"hellcat",
"hercules",
"hiroim",
"hitman",
"hobgoblin",
"holy",
"hooded",
"horridus",
"howard",
"hulk",
"hulkling",
"humbug",
"huntara",
"huntress",
"husk",
"hussar",
"hydra",
"hyperion",
"ice",
"iceman",
"impulse",
"indigo",
"inertia",
"infragirl",
"inhumans",
"ink",
"insect",
"invisible",
"iron",
"jackpot",
"jigsaw",
"joker",
"jolt",
"joystick",
"jubilee",
"judomaster",
"juggernaut",
"jungle",
"juniper",
"justice",
"karate",
"karatecha",
"karma",
"katana",
"killmonger",
"kinetix",
"kingpin",
"kitty",
"klaw",
"knockout",
"komodo",
"kree",
"kronos",
"lady",
"ladyhawk",
"lanolin",
"laurel",
"lavagirl",
"layla",
"leader",
"leatherhead",
"leatherneck",
"legion",
"leonardo",
"leopardon",
"lester",
"lettuce",
"liberty",
"lifeguard",
"ligolo",
"lightning",
"lightspeed",
"lilandra",
"lilith",
"lime",
"lionheart",
"little",
"lizard",
"lockheed",
"lockjaw",
"longshot",
"looker",
"luckman",
"maddog",
"madripoor",
"madrox",
"maestro",
"magik",
"maginty",
"magma",
"magneto",
"magus",
"malice",
"mandarin",
"mandrill",
"mandroid",
"manhunter",
"manitou",
"manta",
"mantis",
"marionette",
"marrow",
"martian",
"mastermind",
"mathemanic",
"mauler",
"maximum",
"maximus",
"medusa",
"megatron",
"menace",
"mentor",
"mephisto",
"metamorpho",
"meteorite",
"michaelangelo",
"microbe",
"microchip",
"micromax",
"midnight",
"mighty",
"mimic",
"mindworm",
"mint",
"miracleman",
"mirage",
"misty",
"mockingbird",
"mongoose",
"mongu",
"monstress",
"moondragon",
"moonstar",
"moonstone",
"morbius",
"mysterio",
"mystique",
"nebula",
"negative",
"nemesis",
"neon",
"netexec",
"network",
"nextwave",
"night",
"nightcat",
"nightcrawler",
"nighthawkc2",
"nightmare",
"nightshade",
"nightstar",
"nightveil",
"nightwing",
"nitro",
"nmap",
"nocturne",
"nomad",
"northstar",
"nova",
"nuke",
"odin",
"ogun",
"onslaught",
"onyx",
"oracle",
"orion",
"overlord",
"owl",
"owlman",
"owlwoman",
"paladin",
"pandemic",
"pantha",
"parasite",
"patch",
"patriot",
"payback",
"penance",
"penguin",
"pestilence",
"phalanx",
"phantom",
"phoenix",
"photon",
"piledriver",
"pigeon",
"plastic",
"poison",
"polaris",
"post",
"power",
"princess",
"prism",
"prodigy",
"psylocke",
"punisher",
"purifiers",
"pyro",
"quasar",
"queen",
"quicksilver",
"rage",
"raider",
"rainbow",
"rainmaker",
"rampage",
"random",
"rafff",
"raisin",
"raptor",
"rapture",
"reaper",
"redwing",
"reptil",
"rescue",
"revanche",
"reverse",
"rhino",
"ricochet",
"rictor",
"riddler",
"risque",
"rocket",
"rockslide",
"rogue",
"sailor",
"sandman",
"saracen",
"sasquatch",
"satana",
"saturn",
"sauron",
"savant",
"scalphunter",
"scarecrow",
"scarlet",
"scorpion",
"scourge",
"scrambler",
"scream",
"screwball",
"secret",
"sentinel",
"sentinels",
"sentry",
"sepulchre",
"serpentor",
"shadow",
"shadowcat",
"shadoweyes",
"shaman",
"shamrock",
"shocker",
"shockwave",
"shotgun",
"shredder",
"shriek",
"shrinking",
"siege",
"silhouette",
"silver",
"silverclaw",
"silvermane",
"siren",
"skullbuster",
"skyrocket",
"slapstick",
"slayback",
"sleeper",
"sleepwalker",
"slipstream",
"smasher",
"snowbird",
"songbird",
"spartan",
"spectrum",
"speedball",
"speedy",
"spellbinder",
"sphinx",
"spider",
"spiral",
"spirit",
"spitfire",
"spoiler",
"spot",
"sprite",
"spy",
"spyke",
"squirrel",
"starbolt",
"stardust",
"starfire",
"starfox",
"stargirl",
"starhawk",
"starwoman",
"sliver",
"steel",
"stinger",
"stingray",
"storm",
"stormtrooper",
"stranger",
"stripperella",
"stryfe",
"stunner",
"sunfire",
"sunspot",
"supergirl",
"supergran",
"superman",
"supernaut",
"superwoman",
"swift",
"switch",
"swordsman",
"synch",
"tag",
"talisman",
"talkback",
"talon",
"talos",
"tank",
"tara",
"tarantula",
"tarot",
"taskmaster",
"tattoo",
"tecna",
"tempest",
"tenebrous",
"terror",
"terry",
"thing",
"thunder",
"thunderball",
"thunderbird",
"thunderbolt",
"tiger",
"timeslip",
"tinkerer",
"titaness",
"titania",
"toad",
"tombstone",
"toxin",
"trauma",
"triathlon",
"triceraton",
"triplicate",
"triton",
"tsunami",
"turbo",
"tyrannus",
"ultimatum",
"ultimo",
"ultra",
"ultragirl",
"ultrawoman",
"ultron",
"unicorn",
"valkyrie",
"vampirella",
"vampiro",
"vanisher",
"vapor",
"vector",
"velocity",
"vengeance",
"venom",
"venus",
"vermin",
"vigilante",
"vindicator",
"violations",
"violator",
"violet",
"viper",
"virtuous",
"vision",
"vivisector",
"vixen",
"vogue",
"void",
"voodoo",
"vulcan",
"vulture",
"wawawa",
"wallflower",
"wallen",
"wallow",
"warbird",
"warbound",
"warhawk",
"warlock",
"warpath",
"warstar",
"wasp",
"watchmen",
"wendigo",
"whirlwind",
"whistler",
"whizzer",
"wiccan",
"widget",
"wild",
"wildcat",
"winged",
"witchblade",
"witchfire",
"wolfpack",
"wolfsbane",
"wolverine",
"wonder",
"wraith",
"wrecker",
"yellowjacket",
"zombie",
}
ligolo-ng-0.7.5/pkg/utils/selfcert/ 0000775 0000000 0000000 00000000000 14735236651 0017156 5 ustar 00root root 0000000 0000000 ligolo-ng-0.7.5/pkg/utils/selfcert/selfcert.go 0000664 0000000 0000000 00000006603 14735236651 0021321 0 ustar 00root root 0000000 0000000 package selfcert
import (
"bytes"
"context"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"crypto/tls"
"crypto/x509"
"crypto/x509/pkix"
"encoding/pem"
"fmt"
"github.com/sirupsen/logrus"
"golang.org/x/crypto/acme/autocert"
"math/big"
"sync"
"time"
)
type SelfCert struct {
certificateMap map[string]*tls.Certificate
certificateMutex sync.Mutex
cache *autocert.DirCache
}
func NewSelfCert(cache *autocert.DirCache) *SelfCert {
return &SelfCert{cache: cache, certificateMap: make(map[string]*tls.Certificate)}
}
func (c *SelfCert) GetCertificate(servername string) (*tls.Certificate, error) {
// Check memory cache
c.certificateMutex.Lock()
if cert, ok := c.certificateMap[servername]; ok {
c.certificateMutex.Unlock()
return cert, nil
}
c.certificateMutex.Unlock()
// Not in memory cache, check in disk cache...
if c.cache != nil {
certBytes, err := c.cache.Get(context.Background(), fmt.Sprintf("%s_cert", servername))
if err == nil {
// No error, attempt to decode cert...
privBytes, err := c.cache.Get(context.Background(), fmt.Sprintf("%s_key", servername))
if err != nil {
return nil, err
}
block, _ := pem.Decode(privBytes)
privateKey, err := x509.ParseECPrivateKey(block.Bytes)
if err != nil {
return nil, err
}
blockPub, _ := pem.Decode(certBytes)
blockCertBytes := blockPub.Bytes
finalCert := &tls.Certificate{
Certificate: [][]byte{blockCertBytes},
PrivateKey: privateKey,
}
// Cache in memory!
c.certificateMutex.Lock()
c.certificateMap[servername] = finalCert
c.certificateMutex.Unlock()
return finalCert, nil
} else {
logrus.Errorf("Certificate cache error: %v, returning a new certificate\n", err)
}
}
priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
if err != nil {
return nil, err
}
serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)
serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)
if err != nil {
return nil, err
}
template := x509.Certificate{
SerialNumber: serialNumber,
Subject: pkix.Name{
Organization: []string{servername},
},
NotBefore: time.Now(),
NotAfter: time.Now().Add(time.Hour * 24 * 365),
KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
BasicConstraintsValid: true,
}
if servername != "" {
template.DNSNames = []string{servername}
}
derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, &priv.PublicKey, priv)
if err != nil {
return nil, err
}
finalCert := &tls.Certificate{
Certificate: [][]byte{derBytes},
PrivateKey: priv,
}
certPEM := new(bytes.Buffer)
pem.Encode(certPEM, &pem.Block{
Type: "CERTIFICATE",
Bytes: derBytes,
})
certPrivKeyPEM := new(bytes.Buffer)
x509Encoded, err := x509.MarshalECPrivateKey(priv)
if err != nil {
return nil, err
}
if err := pem.Encode(certPrivKeyPEM, &pem.Block{
Type: "ECDSA PRIVATE KEY",
Bytes: x509Encoded,
}); err != nil {
return nil, err
}
// Cache in disk!
if c.cache != nil {
c.cache.Put(context.Background(), fmt.Sprintf("%s_cert", servername), certPEM.Bytes())
c.cache.Put(context.Background(), fmt.Sprintf("%s_key", servername), certPrivKeyPEM.Bytes())
}
// Cache in memory!
c.certificateMutex.Lock()
c.certificateMap[servername] = finalCert
c.certificateMutex.Unlock()
return finalCert, nil
}