decentralized-internet
Version:
An NPM library of programs to create decentralized web and distributed computing projects
298 lines (249 loc) • 8.74 kB
JavaScript
/**
* 5G Core Interface
* Interfaces with Open5gs and Free5gc 5G core network components
*/
const EventEmitter = require('eventemitter2').EventEmitter2;
const fetch = require('node-fetch');
class FiveGCoreInterface extends EventEmitter {
constructor(options) {
super();
this.nodeId = options.nodeId;
this.open5gsConfig = options.open5gs || {};
this.free5gcConfig = options.free5gc || {};
this.open5gsEnabled = this.open5gsConfig.enabled || false;
this.free5gcEnabled = this.free5gcConfig.enabled || false;
this.connected = false;
this.amfStatus = 'disconnected';
this.smfStatus = 'disconnected';
this.upfStatus = 'disconnected';
this.registeredUEs = new Map();
this.activeSessions = new Map();
console.log(`[5GCore] Initialized`);
console.log(`[5GCore] Open5gs: ${this.open5gsEnabled ? 'enabled' : 'disabled'}`);
console.log(`[5GCore] Free5gc: ${this.free5gcEnabled ? 'enabled' : 'disabled'}`);
}
/**
* Connect to 5G core
*/
async connect() {
console.log(`[5GCore] Connecting to 5G core...`);
if (this.open5gsEnabled) {
await this.connectOpen5gs();
}
if (this.free5gcEnabled) {
await this.connectFree5gc();
}
if (!this.open5gsEnabled && !this.free5gcEnabled) {
console.log(`[5GCore] No 5G core enabled, running in standalone mode`);
this.connected = false;
return;
}
this.connected = true;
console.log(`[5GCore] Connected successfully`);
}
/**
* Connect to Open5gs
*/
async connectOpen5gs() {
console.log(`[5GCore] Connecting to Open5gs...`);
try {
// Check AMF connectivity
const amfUrl = `${this.open5gsConfig.sbiScheme || 'http'}://${this.open5gsConfig.amfHost}:${this.open5gsConfig.amfPort}`;
// Note: In production, you would make actual HTTP calls to the AMF
// For now, we simulate the connection
console.log(`[5GCore] Open5gs AMF: ${amfUrl}`);
this.amfStatus = 'connected';
// Check SMF connectivity
const smfUrl = `${this.open5gsConfig.sbiScheme || 'http'}://${this.open5gsConfig.smfHost}:${this.open5gsConfig.smfPort || 7777}`;
console.log(`[5GCore] Open5gs SMF: ${smfUrl}`);
this.smfStatus = 'connected';
// Check UPF connectivity
console.log(`[5GCore] Open5gs UPF: ${this.open5gsConfig.upfHost}:${this.open5gsConfig.upfPort || 2152}`);
this.upfStatus = 'connected';
console.log(`[5GCore] Open5gs connected successfully`);
} catch (error) {
console.error(`[5GCore] Failed to connect to Open5gs:`, error.message);
this.amfStatus = 'error';
this.smfStatus = 'error';
this.upfStatus = 'error';
}
}
/**
* Connect to Free5gc
*/
async connectFree5gc() {
console.log(`[5GCore] Connecting to Free5gc...`);
try {
// Check AMF connectivity
const amfUrl = `${this.free5gcConfig.sbiScheme || 'http'}://${this.free5gcConfig.amfHost}:${this.free5gcConfig.amfPort}`;
console.log(`[5GCore] Free5gc AMF: ${amfUrl}`);
this.amfStatus = 'connected';
// Check NRF connectivity for service discovery
const nrfUrl = `${this.free5gcConfig.sbiScheme || 'http'}://${this.free5gcConfig.nrfHost}:${this.free5gcConfig.nrfPort || 29510}`;
console.log(`[5GCore] Free5gc NRF: ${nrfUrl}`);
console.log(`[5GCore] Free5gc connected successfully`);
} catch (error) {
console.error(`[5GCore] Failed to connect to Free5gc:`, error.message);
this.amfStatus = 'error';
}
}
/**
* Register UE (User Equipment)
*/
async registerUE(ueInfo) {
console.log(`[5GCore] Registering UE: ${ueInfo.supi || ueInfo.imsi}`);
try {
// In production, this would make actual registration calls to AMF
const ue = {
supi: ueInfo.supi || ueInfo.imsi,
timestamp: Date.now(),
status: 'registered',
amf: this.open5gsEnabled ? 'open5gs' : 'free5gc'
};
this.registeredUEs.set(ue.supi, ue);
this.emit('registration:success', ue);
console.log(`[5GCore] UE registered successfully: ${ue.supi}`);
return ue;
} catch (error) {
console.error(`[5GCore] UE registration failed:`, error.message);
this.emit('registration:failed', { ueInfo, error: error.message });
throw error;
}
}
/**
* Create PDU session
*/
async createPDUSession(supi, sessionInfo) {
console.log(`[5GCore] Creating PDU session for UE: ${supi}`);
try {
const session = {
sessionId: `session-${Date.now()}`,
supi: supi,
dnn: sessionInfo.dnn || 'internet',
sst: sessionInfo.sst || 1,
sd: sessionInfo.sd || '0x000000',
upfAddress: this.open5gsConfig.upfHost || this.free5gcConfig.upfHost,
timestamp: Date.now(),
status: 'active'
};
this.activeSessions.set(session.sessionId, session);
this.emit('session:created', session);
console.log(`[5GCore] PDU session created: ${session.sessionId}`);
return session;
} catch (error) {
console.error(`[5GCore] PDU session creation failed:`, error.message);
throw error;
}
}
/**
* Release PDU session
*/
async releasePDUSession(sessionId) {
console.log(`[5GCore] Releasing PDU session: ${sessionId}`);
const session = this.activeSessions.get(sessionId);
if (session) {
session.status = 'released';
this.activeSessions.delete(sessionId);
this.emit('session:released', session);
console.log(`[5GCore] PDU session released: ${sessionId}`);
}
}
/**
* Deregister UE
*/
async deregisterUE(supi) {
console.log(`[5GCore] Deregistering UE: ${supi}`);
const ue = this.registeredUEs.get(supi);
if (ue) {
ue.status = 'deregistered';
this.registeredUEs.delete(supi);
// Release all sessions for this UE
this.activeSessions.forEach((session, sessionId) => {
if (session.supi === supi) {
this.releasePDUSession(sessionId);
}
});
this.emit('deregistration:success', { supi });
console.log(`[5GCore] UE deregistered: ${supi}`);
}
}
/**
* Get NF (Network Function) status
*/
async getNFStatus(nfType) {
// Query NRF for network function status
console.log(`[5GCore] Querying status for NF type: ${nfType}`);
// Simulated response
return {
nfType: nfType,
status: 'available',
timestamp: Date.now()
};
}
/**
* Get status
*/
getStatus() {
return {
connected: this.connected,
amf: this.amfStatus,
smf: this.smfStatus,
upf: this.upfStatus,
registeredUEs: this.registeredUEs.size,
activeSessions: this.activeSessions.size
};
}
/**
* Get detailed status
*/
getDetailedStatus() {
return {
connected: this.connected,
open5gs: {
enabled: this.open5gsEnabled,
amf: {
status: this.amfStatus,
host: this.open5gsConfig.amfHost,
port: this.open5gsConfig.amfPort
},
smf: {
status: this.smfStatus,
host: this.open5gsConfig.smfHost,
port: this.open5gsConfig.smfPort
},
upf: {
status: this.upfStatus,
host: this.open5gsConfig.upfHost,
port: this.open5gsConfig.upfPort
}
},
free5gc: {
enabled: this.free5gcEnabled,
amf: {
status: this.free5gcEnabled ? this.amfStatus : 'disabled',
host: this.free5gcConfig.amfHost,
port: this.free5gcConfig.amfPort
}
},
registeredUEs: Array.from(this.registeredUEs.values()),
activeSessions: Array.from(this.activeSessions.values())
};
}
/**
* Disconnect from 5G core
*/
async disconnect() {
console.log(`[5GCore] Disconnecting...`);
// Deregister all UEs
const ues = Array.from(this.registeredUEs.keys());
for (const supi of ues) {
await this.deregisterUE(supi);
}
this.connected = false;
this.amfStatus = 'disconnected';
this.smfStatus = 'disconnected';
this.upfStatus = 'disconnected';
console.log(`[5GCore] Disconnected`);
}
}
module.exports = FiveGCoreInterface;