prosody
7e9ebdc75ce4
spec/util_rfc6724_spec.lua

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spec/util_rfc6724_spec.lua @ 12480:7e9ebdc75ce4

net: isolate LuaSec-specifics For this, various accessor functions are now provided directly on the sockets, which reach down into the LuaSec implementation to obtain the information. While this may seem of little gain at first, it hides the implementation detail of the LuaSec+LuaSocket combination that the actual socket and the TLS layer are separate objects. The net gain here is that an alternative implementation does not have to emulate that specific implementation detail and "only" has to expose LuaSec-compatible data structures on the new functions.
author Jonas Schäfer <jonas@wielicki.name>
date Wed, 27 Apr 2022 17:44:14 +0200
parent 8236:4878e4159e12
line wrap: on
line source


local rfc6724 = require "util.rfc6724";
local new_ip = require"util.ip".new_ip;

describe("util.rfc6724", function()
	describe("#source()", function()
		it("should work", function()
			assert.are.equal(rfc6724.source(new_ip("2001:db8:1::1", "IPv6"),
					{new_ip("2001:db8:3::1", "IPv6"), new_ip("fe80::1", "IPv6")}).addr,
				"2001:db8:3::1",
				"prefer appropriate scope");
			assert.are.equal(rfc6724.source(new_ip("ff05::1", "IPv6"),
					{new_ip("2001:db8:3::1", "IPv6"), new_ip("fe80::1", "IPv6")}).addr,
				"2001:db8:3::1",
				"prefer appropriate scope");
			assert.are.equal(rfc6724.source(new_ip("2001:db8:1::1", "IPv6"),
					{new_ip("2001:db8:1::1", "IPv6"), new_ip("2001:db8:2::1", "IPv6")}).addr,
				"2001:db8:1::1",
				"prefer same address"); -- "2001:db8:1::1" should be marked "deprecated" here, we don't handle that right now
			assert.are.equal(rfc6724.source(new_ip("fe80::1", "IPv6"),
					{new_ip("fe80::2", "IPv6"), new_ip("2001:db8:1::1", "IPv6")}).addr,
				"fe80::2",
				"prefer appropriate scope"); -- "fe80::2" should be marked "deprecated" here, we don't handle that right now
			assert.are.equal(rfc6724.source(new_ip("2001:db8:1::1", "IPv6"),
					{new_ip("2001:db8:1::2", "IPv6"), new_ip("2001:db8:3::2", "IPv6")}).addr,
				"2001:db8:1::2",
				"longest matching prefix");
		--[[ "2001:db8:1::2" should be a care-of address and "2001:db8:3::2" a home address, we can't handle this and would fail
			assert.are.equal(rfc6724.source(new_ip("2001:db8:1::1", "IPv6"),
					{new_ip("2001:db8:1::2", "IPv6"), new_ip("2001:db8:3::2", "IPv6")}).addr,
				"2001:db8:3::2",
				"prefer home address");
		]]
			assert.are.equal(rfc6724.source(new_ip("2002:c633:6401::1", "IPv6"),
					{new_ip("2002:c633:6401::d5e3:7953:13eb:22e8", "IPv6"), new_ip("2001:db8:1::2", "IPv6")}).addr,
				"2002:c633:6401::d5e3:7953:13eb:22e8",
				"prefer matching label"); -- "2002:c633:6401::d5e3:7953:13eb:22e8" should be marked "temporary" here, we don't handle that right now
			assert.are.equal(rfc6724.source(new_ip("2001:db8:1::d5e3:0:0:1", "IPv6"),
					{new_ip("2001:db8:1::2", "IPv6"), new_ip("2001:db8:1::d5e3:7953:13eb:22e8", "IPv6")}).addr,
				"2001:db8:1::d5e3:7953:13eb:22e8",
				"prefer temporary address") -- "2001:db8:1::2" should be marked "public" and "2001:db8:1::d5e3:7953:13eb:22e8" should be marked "temporary" here, we don't handle that right now
		end);
	end);
	describe("#destination()", function()
		it("should work", function()
			local order;
			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("198.51.100.121", "IPv4")},
				{new_ip("2001:db8:1::2", "IPv6"), new_ip("fe80::1", "IPv6"), new_ip("169.254.13.78", "IPv4")})
			assert.are.equal(order[1].addr, "2001:db8:1::1", "prefer matching scope");
			assert.are.equal(order[2].addr, "198.51.100.121", "prefer matching scope");

			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("198.51.100.121", "IPv4")},
				{new_ip("fe80::1", "IPv6"), new_ip("198.51.100.117", "IPv4")})
			assert.are.equal(order[1].addr, "198.51.100.121", "prefer matching scope");
			assert.are.equal(order[2].addr, "2001:db8:1::1", "prefer matching scope");

			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("10.1.2.3", "IPv4")},
				{new_ip("2001:db8:1::2", "IPv6"), new_ip("fe80::1", "IPv6"), new_ip("10.1.2.4", "IPv4")})
			assert.are.equal(order[1].addr, "2001:db8:1::1", "prefer higher precedence");
			assert.are.equal(order[2].addr, "10.1.2.3", "prefer higher precedence");

			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("fe80::1", "IPv6")},
				{new_ip("2001:db8:1::2", "IPv6"), new_ip("fe80::2", "IPv6")})
			assert.are.equal(order[1].addr, "fe80::1", "prefer smaller scope");
			assert.are.equal(order[2].addr, "2001:db8:1::1", "prefer smaller scope");

		--[[ "2001:db8:1::2" and "fe80::2" should be marked "care-of address", while "2001:db8:3::1" should be marked "home address", we can't currently handle this and would fail the test
			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("fe80::1", "IPv6")},
				{new_ip("2001:db8:1::2", "IPv6"), new_ip("2001:db8:3::1", "IPv6"), new_ip("fe80::2", "IPv6")})
			assert.are.equal(order[1].addr, "2001:db8:1::1", "prefer home address");
			assert.are.equal(order[2].addr, "fe80::1", "prefer home address");
		]]

		--[[ "fe80::2" should be marked "deprecated", we can't currently handle this and would fail the test
			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("fe80::1", "IPv6")},
				{new_ip("2001:db8:1::2", "IPv6"), new_ip("fe80::2", "IPv6")})
			assert.are.equal(order[1].addr, "2001:db8:1::1", "avoid deprecated addresses");
			assert.are.equal(order[2].addr, "fe80::1", "avoid deprecated addresses");
		]]

			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("2001:db8:3ffe::1", "IPv6")},
				{new_ip("2001:db8:1::2", "IPv6"), new_ip("2001:db8:3f44::2", "IPv6"), new_ip("fe80::2", "IPv6")})
			assert.are.equal(order[1].addr, "2001:db8:1::1", "longest matching prefix");
			assert.are.equal(order[2].addr, "2001:db8:3ffe::1", "longest matching prefix");

			order = rfc6724.destination({new_ip("2002:c633:6401::1", "IPv6"), new_ip("2001:db8:1::1", "IPv6")},
				{new_ip("2002:c633:6401::2", "IPv6"), new_ip("fe80::2", "IPv6")})
			assert.are.equal(order[1].addr, "2002:c633:6401::1", "prefer matching label");
			assert.are.equal(order[2].addr, "2001:db8:1::1", "prefer matching label");

			order = rfc6724.destination({new_ip("2002:c633:6401::1", "IPv6"), new_ip("2001:db8:1::1", "IPv6")},
				{new_ip("2002:c633:6401::2", "IPv6"), new_ip("2001:db8:1::2", "IPv6"), new_ip("fe80::2", "IPv6")})
			assert.are.equal(order[1].addr, "2001:db8:1::1", "prefer higher precedence");
			assert.are.equal(order[2].addr, "2002:c633:6401::1", "prefer higher precedence");
		end);
	end);
end);