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Add callback support for amt-scanner scan function

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This commit is contained in:
jsastriawan 2019-10-01 09:53:58 -07:00
parent b19cf48adc
commit e28d7faea0
1 changed files with 7 additions and 3 deletions
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10
agents/modules_meshcore/amt-scanner.js
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@ -64,7 +64,7 @@ function AMTScanner() {
if (masknum <= 16 || masknum > 32) return null;
masknum = 32 - masknum;
for (var i = 0; i < masknum; i++) { mask = (mask << 1); mask++; }
return { min: ip & (0xFFFFFFFF - mask), max: (ip & (0xFFFFFFFF - mask)) + mask };
return { min: (ip & (0xFFFFFFFF - mask))+1, max: (ip & (0xFFFFFFFF - mask)) + mask -1 };//remove network and broadcast address to avoid irrecoverable socket error
}
x = this.parseIpv4Addr(range);
if (x == null) return null;
@ -83,7 +83,7 @@ function AMTScanner() {
return ((num >> 24) & 0xFF) + '.' + ((num >> 16) & 0xFF) + '.' + ((num >> 8) & 0xFF) + '.' + (num & 0xFF);
}
this.scan = function (rangestr, timeout) {
this.scan = function (rangestr, timeout, callback) {
var iprange = this.parseIPv4Range(rangestr);
var rmcp = this.buildRmcpPing(0);
var server = this.dgram.createSocket({ type: 'udp4' });
@ -91,11 +91,15 @@ function AMTScanner() {
server.scanResults = [];
server.on('error', function (err) { console.log('Error:' + err); });
server.on('message', function (msg, rinfo) { if (rinfo.size > 4) { this.parent.parseRmcpPacket(this, msg, rinfo, function (s, res) { s.scanResults.push(res); }) }; });
server.on('listening', function () { for (var i = iprange.min; i <= iprange.max; i++) { server.send(rmcp, 623, server.parent.IPv4NumToStr(i)); } });
server.on('listening', function () { for (var i = iprange.min; i <= iprange.max; i++) {
server.send(rmcp, 623, server.parent.IPv4NumToStr(i)); } });
server.bind({ address: '0.0.0.0', port: 0, exclusive: true });
var tmout = setTimeout(function cb() {
//console.log("Server closed");
server.close();
if (callback) {
callback(server.scanResults);
}
server.parent.emit('found', server.scanResults);
delete server;
}, timeout);