153 lines
3.6 KiB
Smalltalk
153 lines
3.6 KiB
Smalltalk
Object subclass: GSMDriver [
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| goal sccp proc completeSem result phoneConfig |
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<category: 'osmo-gsm-operation'>
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<comment: 'I create a SCCP connection and handle stuff on it. In the base class
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I am just capable of handling BSSMAP Management and need to dispatch it to other
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classes.'>
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GSMDriver class >> new [
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<category: 'private'>
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^ super new initialize; yourself
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]
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GSMDriver class >> initWith: aSCCPConnection goal: aGoal phone: aPhone [
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<category: 'creation'>
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^ self new
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goal: aGoal;
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sccp: aSCCPConnection;
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phone: aPhone;
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yourself
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]
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initialize [
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<category: 'private'>
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completeSem := Semaphore new.
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]
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result [
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^ result
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]
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waitForCompletion [
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<category: 'accessing'>
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^ completeSem wait
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]
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goal: aGoal [
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<category: 'manage'>
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goal := aGoal.
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]
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phone: aPhone [
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<category: 'private'>
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phoneConfig := aPhone.
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]
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sccp: aSCCPConnection [
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sccp := aSCCPConnection
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]
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run [
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<category: 'processing'>
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"Process all messages in a thread"
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proc := [
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[
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[true] whileTrue: [
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| msg |
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msg := sccp next.
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self dispatch: msg.
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].
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] on: SystemExceptions.EndOfStream do: [
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completeSem signal.
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].
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] fork.
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]
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cleanUp [
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<category: 'protected'>
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]
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dispatchMan: aMsg [
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<category: 'private'>
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aMsg type = GSM0808Helper msgClear ifTrue: [
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| resp |
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resp := IEMessage initWith: GSM0808Helper msgClearComp.
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sccp nextPutData: (BSSAPManagement initWith: resp).
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^ true
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].
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'Unhandled message' printNl.
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aMsg inspect.
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]
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auKey [
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^ phoneConfig auKey.
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]
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imsi [
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^ phoneConfig imsi.
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]
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dispatchDTAP: aMsg [
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<category: 'private'>
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aMsg class messageType = GSM48MMMessage msgAuReq ifTrue: [
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| auth resp |
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auth := A3A8 COMP128_v3: self auKey rand: aMsg auth data.
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resp := GSM48AuthResp new.
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resp sres data: (auth copyFrom: 1 to: 4).
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sccp nextPutData: (BSSAPDTAP initWith: resp linkIdentifier: 0).
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^ true
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].
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'Unhandled DTAP message' printNl.
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aMsg inspect.
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]
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dispatch: aMsg [
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<category: 'protected'>
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aMsg class msgType = BSSAPHelper msgManagemnt
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ifTrue: [
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self dispatchMan: aMsg data.
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]
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ifFalse: [
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self dispatchDTAP: aMsg data.
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].
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aMsg inspect.
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]
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]
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Object subclass: LUProcedure [
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| driver conn |
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LUProcedure class >> initWith: aHandler phone: aPhone [
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^ self new
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createConnection: aHandler phone: aPhone;
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yourself
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]
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createConnection: aHandler phone: aPhone [
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| lu bssap msg sccp |
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lu := GSM48LURequest new.
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lu mi imsi: aPhone imsi.
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msg := IEMessage initWith: GSM0808Helper msgComplL3.
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msg addIe: (GSMCellIdentifier initWith: 274 mnc: 8 lac: 4099 ci: 40000).
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msg addIe: (GSMLayer3Info initWith: lu).
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bssap := BSSAPManagement initWith: msg.
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conn := aHandler createConnection: bssap.
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driver := GSMDriver initWith: conn goal: #lu phone: aPhone.
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]
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execute [
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driver run.
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driver waitForCompletion.
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'LUProcedure is completed' printNl.
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]
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]
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