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Introduce SSH sniffer
This commit is contained in:
世界
parent
30bea9f93c
commit
6576d27c2a
26
common/sniff/ssh.go
Normal file
26
common/sniff/ssh.go
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@ -0,0 +1,26 @@
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package sniff
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import (
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"bufio"
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"context"
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"io"
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"os"
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"strings"
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"github.com/sagernet/sing-box/adapter"
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C "github.com/sagernet/sing-box/constant"
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)
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func SSH(_ context.Context, metadata *adapter.InboundContext, reader io.Reader) error {
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scanner := bufio.NewScanner(reader)
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if !scanner.Scan() {
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return os.ErrInvalid
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}
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fistLine := scanner.Text()
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if !strings.HasPrefix(fistLine, "SSH-2.0-") {
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return os.ErrInvalid
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}
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metadata.Protocol = C.ProtocolSSH
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metadata.Client = fistLine[8:]
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return nil
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}
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24
common/sniff/ssh_test.go
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24
common/sniff/ssh_test.go
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@ -0,0 +1,24 @@
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package sniff_test
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import (
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"bytes"
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"context"
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"encoding/hex"
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"github.com/sagernet/sing-box/adapter"
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"github.com/sagernet/sing-box/common/sniff"
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C "github.com/sagernet/sing-box/constant"
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"github.com/stretchr/testify/require"
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"testing"
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)
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func TestSniffSSH(t *testing.T) {
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t.Parallel()
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pkt, err := hex.DecodeString("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")
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require.NoError(t, err)
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var metadata adapter.InboundContext
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err = sniff.SSH(context.TODO(), &metadata, bytes.NewReader(pkt))
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require.NoError(t, err)
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require.Equal(t, C.ProtocolSSH, metadata.Protocol)
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require.Equal(t, "dropbear", metadata.Client)
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}
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@ -8,6 +8,7 @@ const (
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ProtocolSTUN = "stun"
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ProtocolBitTorrent = "bittorrent"
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ProtocolDTLS = "dtls"
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ProtocolSSH = "ssh"
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)
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const (
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@ -8,13 +8,14 @@ icon: material/new-box
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:material-plus: Chromium support for QUIC
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:material-plus: BitTorrent support
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:material-plus: DTLS support
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:material-plus: SSH support
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If enabled in the inbound, the protocol and domain name (if present) of by the connection can be sniffed.
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#### Supported Protocols
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| Network | Protocol | Domain Name | Client |
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|:-------:|:------------:|:-----------:|:----------------:|
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| :-----: | :----------: | :---------: | :--------------: |
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| TCP | `http` | Host | / |
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| TCP | `tls` | Server Name | / |
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| UDP | `quic` | Server Name | QUIC Client Type |
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@ -22,9 +23,10 @@ If enabled in the inbound, the protocol and domain name (if present) of by the c
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| TCP/UDP | `dns` | / | / |
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| TCP/UDP | `bittorrent` | / | / |
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| UDP | `dtls` | / | / |
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| TCP | `ssh` | / | SSH Client Name |
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| QUIC Client | Type |
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|:------------------------:|:----------:|
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| :----------------------: | :--------: |
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| Chromium/Cronet | `chrimium` |
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| Safari/Apple Network API | `safari` |
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| Firefox / uquic firefox | `firefox` |
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@ -8,23 +8,25 @@ icon: material/new-box
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:material-plus: QUIC 的 Chromium 支持
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:material-plus: BitTorrent 支持
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:material-plus: DTLS 支持
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:material-plus: SSH 支持
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如果在入站中启用，则可以嗅探连接的协议和域名（如果存在）。
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#### 支持的协议
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| 网络 | 协议 | 域名 | 客户端 |
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|:-------:|:------------:|:-----------:|:----------:|
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| TCP | `http` | Host | / |
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| TCP | `tls` | Server Name | / |
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| 网络 | 协议 | 域名 | 客户端 |
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| :-----: | :----------: | :---------: | :-------------: |
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| TCP | `http` | Host | / |
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| TCP | `tls` | Server Name | / |
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| UDP | `quic` | Server Name | QUIC 客户端类型 |
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| UDP | `stun` | / | / |
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| TCP/UDP | `dns` | / | / |
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| TCP/UDP | `bittorrent` | / | / |
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| UDP | `dtls` | / | / |
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| UDP | `stun` | / | / |
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| TCP/UDP | `dns` | / | / |
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| TCP/UDP | `bittorrent` | / | / |
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| UDP | `dtls` | / | / |
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| TCP | `SSH` | / | SSH 客户端名称 |
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| QUIC 客户端 | 类型 |
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|:------------------------:|:----------:|
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| QUIC 客户端 | 类型 |
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| :----------------------: | :--------: |
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| Chromium/Cronet | `chrimium` |
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| Safari/Apple Network API | `safari` |
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| Firefox / uquic firefox | `firefox` |
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@ -860,9 +860,10 @@ func (r *Router) RouteConnection(ctx context.Context, conn net.Conn, metadata ad
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conn,
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buffer,
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time.Duration(metadata.InboundOptions.SniffTimeout),
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sniff.StreamDomainNameQuery,
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sniff.TLSClientHello,
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sniff.HTTPHost,
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sniff.StreamDomainNameQuery,
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sniff.SSH,
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sniff.BitTorrent,
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)
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if err == nil {
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