mirror of
https://github.com/dutchcoders/transfer.sh.git
synced 2020-11-18 19:53:40 -08:00
103 lines
4.0 KiB
Go
103 lines
4.0 KiB
Go
// Copyright 2014 Google Inc. All Rights Reserved.
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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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// http://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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package elfexec
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import (
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"debug/elf"
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"testing"
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)
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func TestGetBase(t *testing.T) {
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fhExec := &elf.FileHeader{
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Type: elf.ET_EXEC,
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}
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fhRel := &elf.FileHeader{
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Type: elf.ET_REL,
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}
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fhDyn := &elf.FileHeader{
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Type: elf.ET_DYN,
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}
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lsOffset := &elf.ProgHeader{
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Vaddr: 0x400000,
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Off: 0x200000,
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}
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kernelHeader := &elf.ProgHeader{
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Vaddr: 0xffffffff81000000,
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}
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kernelAslrHeader := &elf.ProgHeader{
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Vaddr: 0xffffffff80200000,
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Off: 0x1000,
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}
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ppc64KernelHeader := &elf.ProgHeader{
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Vaddr: 0xc000000000000000,
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}
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testcases := []struct {
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label string
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fh *elf.FileHeader
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loadSegment *elf.ProgHeader
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stextOffset *uint64
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start, limit, offset uint64
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want uint64
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wanterr bool
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}{
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{"exec", fhExec, nil, nil, 0x400000, 0, 0, 0, false},
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{"exec offset", fhExec, lsOffset, nil, 0x400000, 0x800000, 0, 0x200000, false},
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{"exec offset 2", fhExec, lsOffset, nil, 0x200000, 0x600000, 0, 0, false},
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{"exec nomap", fhExec, nil, nil, 0, 0, 0, 0, false},
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{"exec kernel", fhExec, kernelHeader, uint64p(0xffffffff81000198), 0xffffffff82000198, 0xffffffff83000198, 0, 0x1000000, false},
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{"exec kernel", fhExec, kernelHeader, uint64p(0xffffffff810002b8), 0xffffffff81000000, 0xffffffffa0000000, 0x0, 0x0, false},
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{"exec kernel ASLR", fhExec, kernelHeader, uint64p(0xffffffff810002b8), 0xffffffff81000000, 0xffffffffa0000000, 0xffffffff81000000, 0x0, false},
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// TODO(aalexand): Figure out where this test case exactly comes from and
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// whether it's still relevant.
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{"exec kernel ASLR 2", fhExec, kernelAslrHeader, nil, 0xffffffff83e00000, 0xfffffffffc3fffff, 0x3c00000, 0x3c00000, false},
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{"exec PPC64 kernel", fhExec, ppc64KernelHeader, uint64p(0xc000000000000000), 0xc000000000000000, 0xd00000001a730000, 0x0, 0x0, false},
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{"exec chromeos kernel", fhExec, kernelHeader, uint64p(0xffffffff81000198), 0, 0x10197, 0, 0x7efffe68, false},
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{"exec chromeos kernel 2", fhExec, kernelHeader, uint64p(0xffffffff81000198), 0, 0x10198, 0, 0x7efffe68, false},
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{"exec chromeos kernel 3", fhExec, kernelHeader, uint64p(0xffffffff81000198), 0x198, 0x100000, 0, 0x7f000000, false},
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{"exec chromeos kernel 4", fhExec, kernelHeader, uint64p(0xffffffff81200198), 0x198, 0x100000, 0, 0x7ee00000, false},
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{"exec chromeos kernel unremapped", fhExec, kernelHeader, uint64p(0xffffffff810001c8), 0xffffffff834001c8, 0xffffffffc0000000, 0xffffffff834001c8, 0x2400000, false},
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{"dyn", fhDyn, nil, nil, 0x200000, 0x300000, 0, 0x200000, false},
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{"dyn map", fhDyn, lsOffset, nil, 0x0, 0x300000, 0, 0xFFFFFFFFFFE00000, false},
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{"dyn nomap", fhDyn, nil, nil, 0x0, 0x0, 0, 0, false},
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{"dyn map+offset", fhDyn, lsOffset, nil, 0x900000, 0xa00000, 0x200000, 0x500000, false},
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{"rel", fhRel, nil, nil, 0x2000000, 0x3000000, 0, 0x2000000, false},
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{"rel nomap", fhRel, nil, nil, 0x0, ^uint64(0), 0, 0, false},
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{"rel offset", fhRel, nil, nil, 0x100000, 0x200000, 0x1, 0, true},
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}
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for _, tc := range testcases {
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base, err := GetBase(tc.fh, tc.loadSegment, tc.stextOffset, tc.start, tc.limit, tc.offset)
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if err != nil {
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if !tc.wanterr {
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t.Errorf("%s: want no error, got %v", tc.label, err)
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}
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continue
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}
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if tc.wanterr {
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t.Errorf("%s: want error, got nil", tc.label)
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continue
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}
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if base != tc.want {
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t.Errorf("%s: want 0x%x, got 0x%x", tc.label, tc.want, base)
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}
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}
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}
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func uint64p(n uint64) *uint64 {
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return &n
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}
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