mirror of
https://github.com/google/boringssl.git
synced 2026-10-28 08:35:44 +08:00
David Benjamin
33d1049b1f
We use the standard Apache 2.0 file header, described in "APPENDIX: How to apply the Apache License to your work." This was primarily automated by running: git ls-tree -r --name-only HEAD | xargs go run ./util/relicense.go See go/boringssl-relicensing-triage for the results of triaging the output of the tool. As part of this, switch from taking fiat-crypto under MIT license to Apache 2.0. (It is licensed under MIT OR Apache-2.0 OR BSD-1-Clause.) The copyright_summary tool can also be used to confirm we didn't accidentally drop any copyright lines: # Run before the CL git grep -l Copyright | xargs go run ./util/copyright_summary.go -out /tmp/old.json # Run after the CL git grep -l Copyright | xargs go run ./util/copyright_summary.go -compare /tmp/old.json Bug: 364634028 Change-Id: I17c50e761e9d077a1f92e25969e50ed35e320c59 Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/75852 Reviewed-by: Bob Beck <bbe@google.com> Commit-Queue: David Benjamin <davidben@google.com> Reviewed-by: Adam Langley <agl@google.com>
118 lines
4.2 KiB
C++
118 lines
4.2 KiB
C++
// Copyright 2023 The Chromium Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "ip_util.h"
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#include <string.h>
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#include <gtest/gtest.h>
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#include "input.h"
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BSSL_NAMESPACE_BEGIN
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TEST(IPUtilTest, IsValidNetmask) {
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uint8_t kWrongSize[3] = {0xff, 0xff, 0xff};
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EXPECT_FALSE(IsValidNetmask(der::Input(kWrongSize)));
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// All zeros is a valid netmask.
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uint8_t kZeroIPv4[4] = {0};
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EXPECT_TRUE(IsValidNetmask(der::Input(kZeroIPv4)));
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uint8_t kZeroIPv6[16] = {0};
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EXPECT_TRUE(IsValidNetmask(der::Input(kZeroIPv6)));
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// Test all valid non-zero IPv4 netmasks.
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for (int i = 0; i < 4; i++) {
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uint8_t addr[4] = {0};
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memset(addr, 0xff, i);
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for (int shift = 0; shift < 8; shift++) {
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addr[i] = 0xff << shift;
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EXPECT_TRUE(IsValidNetmask(der::Input(addr)));
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}
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}
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// Test all valid non-zero IPv6 netmasks.
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for (int i = 0; i < 16; i++) {
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uint8_t addr[16] = {0};
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memset(addr, 0xff, i);
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for (int shift = 0; shift < 8; shift++) {
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addr[i] = 0xff << shift;
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EXPECT_TRUE(IsValidNetmask(der::Input(addr)));
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}
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}
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// Error within a byte.
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uint8_t kInvalidIPv4[4] = {0xff, 0xff, 0x81, 0x00};
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EXPECT_FALSE(IsValidNetmask(der::Input(kInvalidIPv4)));
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uint8_t kInvalidIPv6[16] = {0xff, 0xff, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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EXPECT_FALSE(IsValidNetmask(der::Input(kInvalidIPv6)));
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// Error at the end.
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uint8_t kInvalidIPv4_2[4] = {0xff, 0xff, 0x80, 0x01};
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EXPECT_FALSE(IsValidNetmask(der::Input(kInvalidIPv4_2)));
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uint8_t kInvalidIPv6_2[16] = {0xff, 0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01};
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EXPECT_FALSE(IsValidNetmask(der::Input(kInvalidIPv6_2)));
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// Leading zero.
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uint8_t kInvalidIPv4_3[4] = {0x00, 0xff, 0x80, 0x00};
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EXPECT_FALSE(IsValidNetmask(der::Input(kInvalidIPv4_3)));
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uint8_t kInvalidIPv6_3[16] = {0x00, 0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01};
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EXPECT_FALSE(IsValidNetmask(der::Input(kInvalidIPv6_3)));
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}
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TEST(IPUtilTest, IPAddressMatchesWithNetmask) {
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// Under a zero mask, any two addresses are equal.
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{
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uint8_t kMask[4] = {0};
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uint8_t kAddr1[4] = {1, 2, 3, 4};
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uint8_t kAddr2[4] = {255, 254, 253, 252};
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EXPECT_TRUE(IPAddressMatchesWithNetmask(
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der::Input(kAddr1), der::Input(kAddr1), der::Input(kMask)));
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EXPECT_TRUE(IPAddressMatchesWithNetmask(
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der::Input(kAddr1), der::Input(kAddr2), der::Input(kMask)));
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}
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// Under an all ones mask, all bits of the address are checked.
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{
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uint8_t kMask[4] = {0xff, 0xff, 0xff, 0xff};
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uint8_t kAddr1[4] = {1, 2, 3, 4};
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uint8_t kAddr2[4] = {255, 254, 253, 252};
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uint8_t kAddr3[4] = {1, 2, 3, 5};
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EXPECT_TRUE(IPAddressMatchesWithNetmask(
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der::Input(kAddr1), der::Input(kAddr1), der::Input(kMask)));
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EXPECT_FALSE(IPAddressMatchesWithNetmask(
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der::Input(kAddr1), der::Input(kAddr2), der::Input(kMask)));
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EXPECT_FALSE(IPAddressMatchesWithNetmask(
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der::Input(kAddr1), der::Input(kAddr3), der::Input(kMask)));
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}
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// In general, only masked bits are considered.
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{
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uint8_t kMask[4] = {0xff, 0xff, 0x80, 0x00};
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uint8_t kAddr1[4] = {1, 2, 3, 4};
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uint8_t kAddr2[4] = {1, 2, 0x7f, 0xff};
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uint8_t kAddr3[4] = {2, 2, 3, 4};
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EXPECT_TRUE(IPAddressMatchesWithNetmask(
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der::Input(kAddr1), der::Input(kAddr1), der::Input(kMask)));
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EXPECT_TRUE(IPAddressMatchesWithNetmask(
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der::Input(kAddr1), der::Input(kAddr2), der::Input(kMask)));
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EXPECT_FALSE(IPAddressMatchesWithNetmask(
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der::Input(kAddr1), der::Input(kAddr3), der::Input(kMask)));
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}
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}
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BSSL_NAMESPACE_END
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