5212c07147PR-URL: https://github.com/nodejs/node/pull/61503 Fixes: https://github.com/nodejs/node/issues/61489 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Robert Nagy <ronagy@icloud.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>
100 lines
3 KiB
JavaScript
100 lines
3 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const net = require('net');
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const server = net.createServer(
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common.mustCall((socket) => {
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socket.end();
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}),
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);
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server.listen(
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0,
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common.mustCall(() => {
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const port = server.address().port;
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const client = new net.Socket();
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// Set TOS before connection to test caching behavior
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client.setTypeOfService(0x10);
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client.connect(port);
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client.on(
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'connect',
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common.mustCall(() => {
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// TEST 1: setTypeOfService validation
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// Should throw if value is not a number, is NaN, or is out of range (0-255)
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assert.throws(() => client.setTypeOfService('invalid'), {
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code: 'ERR_INVALID_ARG_TYPE',
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});
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assert.throws(() => client.setTypeOfService(NaN), {
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code: 'ERR_INVALID_ARG_TYPE',
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});
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assert.throws(() => client.setTypeOfService(256), {
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code: 'ERR_OUT_OF_RANGE',
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});
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assert.throws(() => client.setTypeOfService(-1), {
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code: 'ERR_OUT_OF_RANGE',
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});
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// TEST 2a: Verify deferred application
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// Check if the TOS value set before connect() was cached and applied.
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// We mask with 0xFC to check only the high 6 bits (DSCP),
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// ignoring the lowest 2 bits (ECN) which the OS may modify or zero out.
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const mask = 0xFC;
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const preConnectGot = client.getTypeOfService();
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// Windows often resets TOS or ignores it without admin/registry tweaks.
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// We only assert strict equality on non-Windows platforms.
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if (!common.isWindows) {
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assert.strictEqual(
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preConnectGot & mask,
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0x10 & mask,
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`Pre-connect TOS should be ${0x10 & mask}, got ${preConnectGot & mask}`,
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);
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}
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// TEST 2b: Setting and getting TOS on an active connection
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const tosValue = 0x10; // IPTOS_LOWDELAY (16)
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// On all platforms, this should succeed (tries both IPv4 and IPv6)
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client.setTypeOfService(tosValue);
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// Verify values
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const got = client.getTypeOfService();
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if (!common.isWindows) {
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assert.strictEqual(
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got & mask,
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tosValue & mask,
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`Expected TOS ${tosValue & mask}, got ${got & mask}`,
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);
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}
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// TEST 3: Boundary values
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// Check min (0x00), max (0xFF), and arbitrary intermediate values
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for (const boundaryValue of [0x00, 0xFF, 0x3F]) {
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client.setTypeOfService(boundaryValue);
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const gotBoundary = client.getTypeOfService();
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if (!common.isWindows) {
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assert.strictEqual(
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gotBoundary & mask,
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boundaryValue & mask,
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`Expected TOS ${boundaryValue & mask}, got ${gotBoundary & mask}`,
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);
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}
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}
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client.end();
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}),
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);
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client.on(
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'end',
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common.mustCall(() => {
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server.close();
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}),
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);
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}),
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);
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