// Copyright 2018, VIXL authors
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of ARM Limited nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifdef VIXL_INCLUDE_SIMULATOR_AARCH64
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#include "test-runner.h"
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#include "aarch64/simulator-aarch64.h"
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#define TEST(name) TEST_(AARCH64_POINTER_AUTH_##name)
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namespace vixl {
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namespace aarch64 {
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TEST(compute_pac) {
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Decoder decoder;
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Simulator sim(&decoder);
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uint64_t data1 = 0xfb623599da6e8127;
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uint64_t data2 = 0x27979fadf7d53cb7;
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uint64_t context = 0x477d469dec0b8762;
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Simulator::PACKey key = {0x84be85ce9804e94b, 0xec2802d4e0a488e9, -1};
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uint64_t pac1 = sim.ComputePAC(data1, context, key);
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uint64_t pac2 = sim.ComputePAC(data2, context, key);
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// NOTE: If the PAC implementation is changed, this may fail due to a hash
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// collision.
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VIXL_CHECK(pac1 != pac2);
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}
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TEST(add_and_auth_pac) {
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Decoder decoder;
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Simulator sim(&decoder);
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uint64_t ptr = 0x0000000012345678;
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uint64_t context = 0x477d469dec0b8762;
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Simulator::PACKey key_a = {0x84be85ce9804e94b, 0xec2802d4e0a488e9, 0};
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Simulator::PACKey key_b = {0xec1119e288704d13, 0xd7f6b76e1cea585e, 1};
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uint64_t ptr_a =
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sim.AddPAC(ptr, context, key_a, Simulator::kInstructionPointer);
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// Attempt to authenticate the pointer with PAC using different keys.
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uint64_t success =
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sim.AuthPAC(ptr_a, context, key_a, Simulator::kInstructionPointer);
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uint64_t fail =
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sim.AuthPAC(ptr_a, context, key_b, Simulator::kInstructionPointer);
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uint64_t pac_mask =
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sim.CalculatePACMask(ptr, Simulator::kInstructionPointer, 0);
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// NOTE: If the PAC implementation is changed, this may fail due to a hash
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// collision.
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VIXL_CHECK((ptr_a & pac_mask) != 0x0);
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VIXL_CHECK(success == ptr);
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VIXL_CHECK(fail != ptr);
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}
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TEST(add_and_strip_pac) {
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Decoder decoder;
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Simulator sim(&decoder);
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uint64_t ptr = 0xff00000012345678;
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uint64_t pac_mask =
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sim.CalculatePACMask(ptr, Simulator::kInstructionPointer, 0);
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uint64_t ptr_a = ptr | pac_mask;
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VIXL_CHECK(sim.StripPAC(ptr_a, Simulator::kInstructionPointer) == ptr);
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}
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}
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} // namespace vixl::aarch64
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#endif // VIXL_INCLUDE_SIMULATOR_AARCH64
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