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Merge pull request #45 from enowars/gnb-hidden
Move gnb to hidden folder
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| # Use https://gitignore.io/ to create a suitable .gitignore file for your project. | ||
| data/ | ||
| ./gnb |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| #!/bin/bash | ||
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| cd src | ||
| CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o ../../service/gnb cmd/gnb/main.go |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| module phreaking | ||
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| go 1.20 | ||
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| require github.com/gofrs/uuid v4.4.0+incompatible |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| github.com/gofrs/uuid v4.4.0+incompatible h1:3qXRTX8/NbyulANqlc0lchS1gqAVxRgsuW1YrTJupqA= | ||
| github.com/gofrs/uuid v4.4.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM= |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| package io | ||
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| import ( | ||
| "errors" | ||
| "io" | ||
| "net" | ||
| "phreaking/pkg/nas" | ||
| "phreaking/pkg/ngap" | ||
| "phreaking/pkg/parser" | ||
| ) | ||
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| var EOF error = io.EOF | ||
|
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| func Send(conn net.Conn, msg []byte) (err error) { | ||
| msgLen := uint16(len(msg)) | ||
| buf := make([]byte, 2) | ||
| buf[0] = uint8(msgLen >> 8) | ||
| buf[1] = uint8(msgLen & 0xff) | ||
| _, err = conn.Write(buf) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| _, err = conn.Write(msg) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
|
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| func SendGmm(conn net.Conn, gmm nas.GmmHeader) (err error) { | ||
| pkt, err := parser.EncodeMsg(&gmm) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| return Send(conn, pkt) | ||
| } | ||
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| func SendNgapMsg[T any](conn net.Conn, ngapType ngap.NgapMsgType, msgPtr *T) (err error) { | ||
| ngapPdu, err := parser.EncodeMsg(&msgPtr) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| ngapHeader := ngap.NgapHeader{MessageType: ngapType, NgapPdu: ngapPdu} | ||
| pkt, err := parser.EncodeMsg(&ngapHeader) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| return Send(conn, pkt) | ||
| } | ||
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| func Recv(conn net.Conn) ([]byte, error) { | ||
| buf := make([]byte, 2) | ||
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| _, err := conn.Read(buf) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| msgLen := uint16(buf[1]) | uint16(buf[0])<<8 | ||
| if msgLen < 1 { | ||
| return nil, errors.New("msg length of buffer is zero or negative") | ||
| } | ||
| buf = make([]byte, msgLen) | ||
| _, err = conn.Read(buf) | ||
| return buf, err | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| package nas | ||
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| import "github.com/gofrs/uuid" | ||
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| type NasMsgType int | ||
| type AmfUeNgapIdType uuid.UUID | ||
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| const ( | ||
| NASRegRequest NasMsgType = iota | ||
| NASIdRequest | ||
| NASIdResponse | ||
| NASAuthRequest | ||
| NASAuthResponse | ||
| NASSecurityModeCommand | ||
| NASSecurityModeComplete | ||
| InitialContextSetupRequestRegAccept | ||
| UECapInfoIndication | ||
| InitialContextSetupResponse | ||
| RegisterComplete | ||
| PDUSessionEstRequest | ||
| PDUSessionEstAccept | ||
| PDUReq | ||
| PDURes | ||
| PDUSessionResourceReleaseCommand | ||
| // Location | ||
| LocationUpdate | ||
| LocationReportRequest | ||
| LocationReportResponse | ||
| ) | ||
|
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| type EaMask uint8 | ||
|
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| const ( | ||
| EA0 EaMask = 1 << iota | ||
| EA1 | ||
| EA2 | ||
| EA3 | ||
| EA4 | ||
| EA5 | ||
| EA6 | ||
| EA7 | ||
| ) | ||
|
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| var EaMaskMap = []EaMask{ | ||
| EA0, | ||
| EA1, | ||
| EA2, | ||
| EA3, | ||
| EA4, | ||
| EA5, | ||
| EA6, | ||
| EA7, | ||
| } | ||
|
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| type IaMask uint8 | ||
|
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| const ( | ||
| IA0 IaMask = 1 << iota | ||
| IA1 | ||
| IA2 | ||
| IA3 | ||
| IA4 | ||
| IA5 | ||
| IA6 | ||
| IA7 | ||
| ) | ||
|
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| var IaMaskMap = []IaMask{ | ||
| IA0, | ||
| IA1, | ||
| IA2, | ||
| IA3, | ||
| IA4, | ||
| IA5, | ||
| IA6, | ||
| IA7, | ||
| } | ||
|
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| type SecCapType struct { | ||
| // 1 | 2 | .. | 8 | ||
| // EA0 | EA1 | .. | EA7 | ||
| EaCap EaMask | ||
| // 1 | 2 | .. | 8 | ||
| // IA0 | IA1 | .. | IA7 | ||
| IaCap IaMask | ||
| } | ||
|
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| type GmmHeader struct { | ||
| // MobileId MobileIdType | ||
| Security bool | ||
| Mac [8]byte | ||
| MessageType NasMsgType | ||
| Message []byte | ||
| } | ||
|
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| type MobileIdType struct { | ||
| // SupiFormat uint8 | ||
| // IdType | ||
| Mcc uint8 | ||
| Mnc uint8 | ||
| // Routing indicator | ||
| ProtecScheme uint8 | ||
| HomeNetPki uint8 | ||
| Msin uint | ||
| } | ||
|
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| type NASRegRequestMsg struct { | ||
| // Extended protocol discriminator | ||
| SecHeader uint8 | ||
| // 5GS registration type | ||
| // ngKsi | ||
| MobileId MobileIdType | ||
| SecCap SecCapType | ||
| } | ||
|
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| type NASAuthRequestMsg struct { | ||
| SecHeader uint8 | ||
| Rand []byte | ||
| AuthRand []byte | ||
| Auth []byte | ||
| } | ||
|
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| type NASAuthResponseMsg struct { | ||
| SecHeader uint8 | ||
| Res []byte | ||
| } | ||
|
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| type NASSecurityModeCommandMsg struct { | ||
| SecHeader uint8 | ||
| EaAlg uint8 | ||
| IaAlg uint8 | ||
| ReplaySecCap SecCapType | ||
| } | ||
|
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| type PDUSessionEstRequestMsg struct { | ||
| PduSesId uint8 | ||
| PduSesType uint8 | ||
| // add integrity protetion maximum data rate | ||
| } | ||
|
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| type PDUSessionEstAcceptMsg struct { | ||
| PduSesId uint8 | ||
| // PduAddress []byte | ||
| // SSC | ||
| // QoS | ||
| // AMBR | ||
| } | ||
|
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| type LocationUpdateMsg struct { | ||
| Location string | ||
| } | ||
|
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| type LocationReportRequestMsg struct { | ||
| AmfUeNgapId AmfUeNgapIdType | ||
| RanUeNgapId uint32 | ||
| } | ||
|
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| type LocationReportResponseMsg struct { | ||
| AmfUeNgapId AmfUeNgapIdType | ||
| RanUeNgapId uint32 | ||
| Locations []string | ||
| } | ||
|
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| type PDUReqMsg struct { | ||
| PduSesId uint8 | ||
| Request []byte | ||
| } | ||
| type PDUResMsg struct { | ||
| PduSesId uint8 | ||
| Response []byte | ||
| } |
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