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/*
* Copyright (c) 2019, The OpenThread Authors.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <limits.h>
#include "net/ip6_address.hpp"
#include "test_util.h"
struct Ip6AddressStringTestVector
{
const char * mString;
const uint8_t mAddr[OT_IP6_ADDRESS_SIZE];
otError mError;
};
static void checkAddressFromString(Ip6AddressStringTestVector *aTestVector)
{
otError error;
ot::Ip6::Address address;
error = address.FromString(aTestVector->mString);
VerifyOrQuit(error == aTestVector->mError, "Ip6::Address::FromString returned unexpected error code");
if (error == OT_ERROR_NONE)
{
VerifyOrQuit(0 == memcmp(address.mFields.m8, aTestVector->mAddr, OT_IP6_ADDRESS_SIZE),
"Ip6::Address::FromString parsing failed");
}
}
void TestIp6AddressFromString(void)
{
Ip6AddressStringTestVector testVectors[] = {
// Valid full IPv6 address.
{"0102:0304:0506:0708:090a:0b0c:0d0e:0f00",
{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00},
OT_ERROR_NONE},
// Valid full IPv6 address with mixed capital and small letters.
{"0102:0304:0506:0708:090a:0B0C:0d0E:0F00",
{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00},
OT_ERROR_NONE},
// Short prefix and full IID.
{"fd11::abcd:e0e0:d10e:0001",
{0xfd, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xab, 0xcd, 0xe0, 0xe0, 0xd1, 0x0e, 0x00, 0x01},
OT_ERROR_NONE},
// Valid IPv6 address with unnecessary :: symbol.
{"fd11:1234:5678:abcd::abcd:e0e0:d10e:1000",
{0xfd, 0x11, 0x12, 0x34, 0x56, 0x78, 0xab, 0xcd, 0xab, 0xcd, 0xe0, 0xe0, 0xd1, 0x0e, 0x10, 0x00},
OT_ERROR_NONE},
// Short multicast address.
{"ff03::0b",
{0xff, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0b},
OT_ERROR_NONE},
// Unspecified address.
{"::", {0}, OT_ERROR_NONE},
// Valid embedded IPv4 address.
{"64:ff9b::100.200.15.4",
{0x00, 0x64, 0xff, 0x9b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x64, 0xc8, 0x0f, 0x04},
OT_ERROR_NONE},
// Valid embedded IPv4 address.
{"2001:db8::abc:def1:127.0.0.1",
{0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x0a, 0xbc, 0xde, 0xf1, 0x7f, 0x00, 0x00, 0x01},
OT_ERROR_NONE},
// Two :: should cause a parse error.
{"2001:db8::a::b", {0}, OT_ERROR_PARSE},
// The "g" and "h" are not the hex characters.
{"2001:db8::abcd:efgh", {0}, OT_ERROR_PARSE},
// Too many colons.
{"1:2:3:4:5:6:7:8:9", {0}, OT_ERROR_PARSE},
// Too many characters in a single part.
{"2001:db8::abc:def12:1:2", {0}, OT_ERROR_PARSE},
// Invalid embedded IPv4 address.
{"64:ff9b::123.231.0.257", {0}, OT_ERROR_PARSE},
// Invalid embedded IPv4 address.
{"64:ff9b::1.22.33", {0}, OT_ERROR_PARSE},
// Invalid embedded IPv4 address.
{"64:ff9b::1.22.33.44.5", {0}, OT_ERROR_PARSE},
// Invalid embedded IPv4 address.
{".", {0}, OT_ERROR_PARSE},
// Invalid embedded IPv4 address.
{":.", {0}, OT_ERROR_PARSE},
// Invalid embedded IPv4 address.
{"::.", {0}, OT_ERROR_PARSE},
// Invalid embedded IPv4 address.
{":f:0:0:c:0:f:f:.", {0}, OT_ERROR_PARSE},
};
for (uint32_t index = 0; index < OT_ARRAY_LENGTH(testVectors); index++)
{
checkAddressFromString(&testVectors[index]);
}
}
bool CheckPrefix(const ot::Ip6::Address &aAddress, const uint8_t *aPrefix, uint8_t aPrefixLength)
{
// Check the first aPrefixLength bits of aAddress to match the given aPrefix.
bool matches = true;
for (uint8_t bit = 0; bit < aPrefixLength; bit++)
{
uint8_t index = bit / CHAR_BIT;
uint8_t mask = (0x80 >> (bit % CHAR_BIT));
if ((aAddress.mFields.m8[index] & mask) != (aPrefix[index] & mask))
{
matches = false;
break;
}
}
return matches;
}
bool CheckInterfaceId(const ot::Ip6::Address &aAddress1, const ot::Ip6::Address &aAddress2, uint8_t aPrefixLength)
{
// Check whether all the bits after aPrefixLength of the two given IPv6 Address match or not.
bool matches = true;
for (uint8_t bit = aPrefixLength; bit < sizeof(ot::Ip6::Address) * CHAR_BIT; bit++)
{
uint8_t index = bit / CHAR_BIT;
uint8_t mask = (0x80 >> (bit % CHAR_BIT));
if ((aAddress1.mFields.m8[index] & mask) != (aAddress2.mFields.m8[index] & mask))
{
matches = false;
break;
}
}
return matches;
}
void TestIp6AddressSetPrefix(void)
{
const uint8_t kPrefixes[][OT_IP6_ADDRESS_SIZE] = {
{0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef},
{0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55},
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
};
ot::Ip6::Address address;
ot::Ip6::Address allZeroAddress;
ot::Ip6::Address allOneAddress;
allZeroAddress.Clear();
memset(&allOneAddress, 0xff, sizeof(allOneAddress));
for (uint8_t index = 0; index < OT_ARRAY_LENGTH(kPrefixes); index++)
{
const uint8_t *prefix = kPrefixes[index];
memcpy(address.mFields.m8, prefix, sizeof(address));
printf("Prefix is %s\n", address.ToString().AsCString());
for (uint8_t prefixLength = 0; prefixLength <= sizeof(ot::Ip6::Address) * CHAR_BIT; prefixLength++)
{
address = allZeroAddress;
address.SetPrefix(prefix, prefixLength);
printf(" prefix-len:%-3d --> %s\n", prefixLength, address.ToString().AsCString());
VerifyOrQuit(CheckPrefix(address, prefix, prefixLength), "Prefix does not match after SetPrefix()");
VerifyOrQuit(CheckInterfaceId(address, allZeroAddress, prefixLength),
"SetPrefix changed bits beyond the prefix length");
address = allOneAddress;
address.SetPrefix(prefix, prefixLength);
VerifyOrQuit(CheckPrefix(address, prefix, prefixLength), "Prefix does not match after SetPrefix()");
VerifyOrQuit(CheckInterfaceId(address, allOneAddress, prefixLength),
"SetPrefix changed bits beyond the prefix length");
}
}
}
int main(void)
{
TestIp6AddressSetPrefix();
TestIp6AddressFromString();
printf("All tests passed\n");
return 0;
}