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// SPDX-License-Identifier: BSD-2-Clause
// author: Max Kellermann <max.kellermann@gmail.com>
#include "net/Init.hxx"
#include "net/IPv6Address.hxx"
#include "net/ToString.hxx"
#include "util/Compiler.h"
#include <gtest/gtest.h>
#include <stdexcept>
#ifndef _WIN32
#include <arpa/inet.h>
#endif
#if GCC_CHECK_VERSION(11,0)
/* suppress warning for calling GetSize() on uninitialized object */
#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
#endif
TEST(IPv6AddressTest, Basic)
{
IPv6Address dummy;
EXPECT_EQ(dummy.GetSize(), sizeof(struct sockaddr_in6));
}
TEST(IPv6AddressTest, Port)
{
IPv6Address a(12345);
EXPECT_EQ(a.GetPort(), 12345u);
a.SetPort(42);
EXPECT_EQ(a.GetPort(), 42u);
}
static bool
operator==(const struct in6_addr &a, const struct in6_addr &b)
{
return memcmp(&a, &b, sizeof(a)) == 0;
}
TEST(IPv6AddressTest, Mask)
{
EXPECT_EQ(IPv6Address::MaskFromPrefix(0).GetAddress(),
IPv6Address(0, 0, 0, 0, 0, 0, 0, 0, 0).GetAddress());
EXPECT_EQ(IPv6Address::MaskFromPrefix(128).GetAddress(),
IPv6Address(0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0).GetAddress());
EXPECT_EQ(IPv6Address::MaskFromPrefix(127).GetAddress(),
IPv6Address(0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xfffe, 0).GetAddress());
EXPECT_EQ(IPv6Address::MaskFromPrefix(64).GetAddress(),
IPv6Address(0xffff, 0xffff, 0xffff, 0xffff,
0, 0, 0, 0, 0).GetAddress());
EXPECT_EQ(IPv6Address::MaskFromPrefix(56).GetAddress(),
IPv6Address(0xffff, 0xffff, 0xffff, 0xff00,
0, 0, 0, 0, 0).GetAddress());
}
TEST(IPv6AddressTest, And)
{
EXPECT_EQ((IPv6Address::MaskFromPrefix(128) &
IPv6Address::MaskFromPrefix(56)).GetAddress(),
IPv6Address::MaskFromPrefix(56).GetAddress());
EXPECT_EQ((IPv6Address::MaskFromPrefix(48) &
IPv6Address(0x2a00, 0x1450, 0x4001, 0x816,
0, 0, 0, 0x200e, 0)).GetAddress(),
IPv6Address(0x2a00, 0x1450, 0x4001, 0,
0, 0, 0, 0, 0).GetAddress());
EXPECT_EQ((IPv6Address::MaskFromPrefix(24) &
IPv6Address(0x2a00, 0x1450, 0x4001, 0x816,
0, 0, 0, 0x200e, 0)).GetAddress(),
IPv6Address(0x2a00, 0x1400, 0, 0,
0, 0, 0, 0, 0).GetAddress());
}
static std::string
ToString(const struct in6_addr &a)
{
#ifdef _WIN32
/* on mingw32, the parameter is non-const (PVOID) */
const auto p = const_cast<struct in6_addr *>(&a);
#else
const auto p = &a;
#endif
char buffer[256];
const char *result = inet_ntop(AF_INET6, p, buffer, sizeof(buffer));
if (result == nullptr)
throw std::runtime_error("inet_ntop() failed");
return result;
}
TEST(IPv6Address, Octets)
{
const ScopeNetInit net_init;
static constexpr auto a = IPv6Address(0x1110, 0x2220, 0x3330, 0x4440,
0x5550, 0x6660, 0x7770, 0x8880,
1234);
EXPECT_EQ(ToString(a.GetAddress()), "1110:2220:3330:4440:5550:6660:7770:8880");
}
TEST(IPv6Address, Any)
{
const ScopeNetInit net_init;
EXPECT_EQ(ToString(IPv6Address(1234).GetAddress()), "::");
EXPECT_EQ(ToString(IPv6Address(1234)), "[::]:1234");
}
TEST(IPv6Address, Port)
{
const ScopeNetInit net_init;
EXPECT_EQ(IPv6Address(0).GetPort(), 0);
EXPECT_EQ(IPv6Address(1).GetPort(), 1);
EXPECT_EQ(IPv6Address(1234).GetPort(), 1234);
EXPECT_EQ(IPv6Address(0xffff).GetPort(), 0xffff);
}
TEST(IPv6Address, MaskFromPrefix)
{
const ScopeNetInit net_init;
EXPECT_EQ(ToString(IPv6Address::MaskFromPrefix(0).GetAddress()), "::");
EXPECT_EQ(ToString(IPv6Address::MaskFromPrefix(1).GetAddress()), "8000::");
EXPECT_EQ(ToString(IPv6Address::MaskFromPrefix(8).GetAddress()), "ff00::");
EXPECT_EQ(ToString(IPv6Address::MaskFromPrefix(16).GetAddress()), "ffff::");
EXPECT_EQ(ToString(IPv6Address::MaskFromPrefix(17).GetAddress()), "ffff:8000::");
EXPECT_EQ(ToString(IPv6Address::MaskFromPrefix(32).GetAddress()), "ffff:ffff::");
EXPECT_EQ(ToString(IPv6Address::MaskFromPrefix(64).GetAddress()), "ffff:ffff:ffff:ffff::");
EXPECT_TRUE(/* glibc: */
ToString(IPv6Address::MaskFromPrefix(112).GetAddress()) == "ffff:ffff:ffff:ffff:ffff:ffff:ffff:0" ||
/* macOS: */
ToString(IPv6Address::MaskFromPrefix(112).GetAddress()) == "ffff:ffff:ffff:ffff:ffff:ffff:ffff::");
EXPECT_EQ(ToString(IPv6Address::MaskFromPrefix(128).GetAddress()), "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff");
}
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