| // Copyright 2018, VIXL 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: |
| // |
| // * Redistributions of source code must retain the above copyright notice, |
| // this list of conditions and the following disclaimer. |
| // * 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. |
| // * Neither the name of ARM Limited 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 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 OWNER 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. |
| |
| #ifdef VIXL_INCLUDE_SIMULATOR_AARCH64 |
| |
| #include "test-runner.h" |
| #include "aarch64/simulator-aarch64.h" |
| |
| #define TEST(name) TEST_(AARCH64_POINTER_AUTH_##name) |
| |
| namespace vixl { |
| namespace aarch64 { |
| |
| |
| TEST(compute_pac) { |
| Decoder decoder; |
| Simulator sim(&decoder); |
| |
| uint64_t data1 = 0xfb623599da6e8127; |
| uint64_t data2 = 0x27979fadf7d53cb7; |
| uint64_t context = 0x477d469dec0b8762; |
| Simulator::PACKey key = {0x84be85ce9804e94b, 0xec2802d4e0a488e9, -1}; |
| |
| uint64_t pac1 = sim.ComputePAC(data1, context, key); |
| uint64_t pac2 = sim.ComputePAC(data2, context, key); |
| |
| // NOTE: If the PAC implementation is changed, this may fail due to a hash |
| // collision. |
| VIXL_CHECK(pac1 != pac2); |
| } |
| |
| TEST(add_and_auth_pac) { |
| Decoder decoder; |
| Simulator sim(&decoder); |
| |
| uint64_t ptr = 0x0000000012345678; |
| uint64_t context = 0x477d469dec0b8762; |
| Simulator::PACKey key_a = {0x84be85ce9804e94b, 0xec2802d4e0a488e9, 0}; |
| Simulator::PACKey key_b = {0xec1119e288704d13, 0xd7f6b76e1cea585e, 1}; |
| |
| uint64_t ptr_a = |
| sim.AddPAC(ptr, context, key_a, Simulator::kInstructionPointer); |
| |
| // Attempt to authenticate the pointer with PAC using different keys. |
| uint64_t success = |
| sim.AuthPAC(ptr_a, context, key_a, Simulator::kInstructionPointer); |
| uint64_t fail = |
| sim.AuthPAC(ptr_a, context, key_b, Simulator::kInstructionPointer); |
| |
| uint64_t pac_mask = |
| sim.CalculatePACMask(ptr, Simulator::kInstructionPointer, 0); |
| |
| // NOTE: If the PAC implementation is changed, this may fail due to a hash |
| // collision. |
| VIXL_CHECK((ptr_a & pac_mask) != 0x0); |
| VIXL_CHECK(success == ptr); |
| VIXL_CHECK(fail != ptr); |
| } |
| |
| TEST(add_and_strip_pac) { |
| Decoder decoder; |
| Simulator sim(&decoder); |
| |
| uint64_t ptr = 0xff00000012345678; |
| uint64_t pac_mask = |
| sim.CalculatePACMask(ptr, Simulator::kInstructionPointer, 0); |
| uint64_t ptr_a = ptr | pac_mask; |
| |
| |
| VIXL_CHECK(sim.StripPAC(ptr_a, Simulator::kInstructionPointer) == ptr); |
| } |
| } |
| } // namespace vixl::aarch64 |
| |
| #endif // VIXL_INCLUDE_SIMULATOR_AARCH64 |